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-rw-r--r--src/vim9execute.c7581
1 files changed, 7581 insertions, 0 deletions
diff --git a/src/vim9execute.c b/src/vim9execute.c
new file mode 100644
index 0000000..1efed35
--- /dev/null
+++ b/src/vim9execute.c
@@ -0,0 +1,7581 @@
+/* vi:set ts=8 sts=4 sw=4 noet:
+ *
+ * VIM - Vi IMproved by Bram Moolenaar
+ *
+ * Do ":help uganda" in Vim to read copying and usage conditions.
+ * Do ":help credits" in Vim to see a list of people who contributed.
+ * See README.txt for an overview of the Vim source code.
+ */
+
+/*
+ * vim9execute.c: execute Vim9 script instructions
+ */
+
+#define USING_FLOAT_STUFF
+#include "vim.h"
+
+#if defined(FEAT_EVAL) || defined(PROTO)
+
+// When not generating protos this is included in proto.h
+#ifdef PROTO
+# include "vim9.h"
+#endif
+
+
+// Structure put on ec_trystack when ISN_TRY is encountered.
+typedef struct {
+ int tcd_frame_idx; // ec_frame_idx at ISN_TRY
+ int tcd_stack_len; // size of ectx.ec_stack at ISN_TRY
+ int tcd_in_catch; // in catch or finally block
+ int tcd_did_throw; // set did_throw in :endtry
+ int tcd_catch_idx; // instruction of the first :catch or :finally
+ int tcd_finally_idx; // instruction of the :finally block or zero
+ int tcd_endtry_idx; // instruction of the :endtry
+ int tcd_caught; // catch block entered
+ int tcd_cont; // :continue encountered, jump here (minus one)
+ int tcd_return; // when TRUE return from end of :finally
+} trycmd_T;
+
+// Data local to a function.
+// On a function call, if not empty, is saved on the stack and restored when
+// returning.
+typedef struct {
+ int floc_restore_cmdmod;
+ cmdmod_T floc_save_cmdmod;
+ int floc_restore_cmdmod_stacklen;
+} funclocal_T;
+
+// Structure to hold a reference to an outer_T, with information of whether it
+// was allocated.
+typedef struct {
+ outer_T *or_outer;
+ partial_T *or_partial; // decrement "or_partial->pt_refcount" later
+ int or_outer_allocated; // free "or_outer" later
+} outer_ref_T;
+
+// A stack is used to store:
+// - arguments passed to a :def function
+// - info about the calling function, to use when returning
+// - local variables
+// - temporary values
+//
+// In detail (FP == Frame Pointer):
+// arg1 first argument from caller (if present)
+// arg2 second argument from caller (if present)
+// extra_arg1 any missing optional argument default value
+// FP -> cur_func calling function
+// current previous instruction pointer
+// frame_ptr previous Frame Pointer
+// var1 space for local variable
+// var2 space for local variable
+// .... fixed space for max. number of local variables
+// temp temporary values
+// .... flexible space for temporary values (can grow big)
+
+/*
+ * Execution context.
+ */
+struct ectx_S {
+ garray_T ec_stack; // stack of typval_T values
+ int ec_frame_idx; // index in ec_stack: context of ec_dfunc_idx
+ int ec_initial_frame_idx; // frame index when called
+
+ outer_ref_T *ec_outer_ref; // outer scope used for closures, allocated
+ funclocal_T ec_funclocal;
+
+ garray_T ec_trystack; // stack of trycmd_T values
+
+ isn_T *ec_instr; // array with instructions
+ int ec_dfunc_idx; // current function index
+ int ec_iidx; // index in ec_instr: instruction to execute
+
+ garray_T ec_funcrefs; // partials that might be a closure
+
+ int ec_did_emsg_before;
+ int ec_trylevel_at_start;
+ where_T ec_where;
+};
+
+#ifdef FEAT_PROFILE
+// stack of profinfo_T used when profiling.
+static garray_T profile_info_ga = {0, 0, sizeof(profinfo_T), 20, NULL};
+#endif
+
+// Get pointer to item in the stack.
+#define STACK_TV(idx) (((typval_T *)ectx->ec_stack.ga_data) + idx)
+
+// Get pointer to item relative to the bottom of the stack, -1 is the last one.
+#define STACK_TV_BOT(idx) (((typval_T *)ectx->ec_stack.ga_data) + ectx->ec_stack.ga_len + (idx))
+
+// Get pointer to a local variable on the stack. Negative for arguments.
+#define STACK_TV_VAR(idx) (((typval_T *)ectx->ec_stack.ga_data) + ectx->ec_frame_idx + STACK_FRAME_SIZE + idx)
+
+ void
+to_string_error(vartype_T vartype)
+{
+ semsg(_(e_cannot_convert_str_to_string), vartype_name(vartype));
+}
+
+/*
+ * Return the number of arguments, including optional arguments and any vararg.
+ */
+ static int
+ufunc_argcount(ufunc_T *ufunc)
+{
+ return ufunc->uf_args.ga_len + (ufunc->uf_va_name != NULL ? 1 : 0);
+}
+
+/*
+ * Create a new string from "count" items at the bottom of the stack.
+ * A trailing NUL is appended.
+ * When "count" is zero an empty string is added to the stack.
+ */
+ static int
+exe_concat(int count, ectx_T *ectx)
+{
+ int idx;
+ int len = 0;
+ typval_T *tv;
+ garray_T ga;
+
+ ga_init2(&ga, sizeof(char), 1);
+ // Preallocate enough space for the whole string to avoid having to grow
+ // and copy.
+ for (idx = 0; idx < count; ++idx)
+ {
+ tv = STACK_TV_BOT(idx - count);
+ if (tv->vval.v_string != NULL)
+ len += (int)STRLEN(tv->vval.v_string);
+ }
+
+ if (ga_grow(&ga, len + 1) == FAIL)
+ return FAIL;
+
+ for (idx = 0; idx < count; ++idx)
+ {
+ tv = STACK_TV_BOT(idx - count);
+ ga_concat(&ga, tv->vval.v_string);
+ clear_tv(tv);
+ }
+
+ // add a terminating NUL
+ ga_append(&ga, NUL);
+
+ ectx->ec_stack.ga_len -= count - 1;
+ STACK_TV_BOT(-1)->vval.v_string = ga.ga_data;
+
+ return OK;
+}
+
+/*
+ * Create a new list from "count" items at the bottom of the stack.
+ * When "count" is zero an empty list is added to the stack.
+ * When "count" is -1 a NULL list is added to the stack.
+ */
+ static int
+exe_newlist(int count, ectx_T *ectx)
+{
+ list_T *list = NULL;
+ int idx;
+ typval_T *tv;
+
+ if (count >= 0)
+ {
+ list = list_alloc_with_items(count);
+ if (list == NULL)
+ return FAIL;
+ for (idx = 0; idx < count; ++idx)
+ list_set_item(list, idx, STACK_TV_BOT(idx - count));
+ }
+
+ if (count > 0)
+ ectx->ec_stack.ga_len -= count - 1;
+ else if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ {
+ list_unref(list);
+ return FAIL;
+ }
+ else
+ ++ectx->ec_stack.ga_len;
+ tv = STACK_TV_BOT(-1);
+ tv->v_type = VAR_LIST;
+ tv->vval.v_list = list;
+ tv->v_lock = 0;
+ if (list != NULL)
+ ++list->lv_refcount;
+ return OK;
+}
+
+/*
+ * Implementation of ISN_NEWDICT.
+ * Returns FAIL on total failure, MAYBE on error.
+ */
+ static int
+exe_newdict(int count, ectx_T *ectx)
+{
+ dict_T *dict = NULL;
+ dictitem_T *item;
+ char_u *key;
+ int idx;
+ typval_T *tv;
+
+ if (count >= 0)
+ {
+ dict = dict_alloc();
+ if (unlikely(dict == NULL))
+ return FAIL;
+ for (idx = 0; idx < count; ++idx)
+ {
+ // have already checked key type is VAR_STRING
+ tv = STACK_TV_BOT(2 * (idx - count));
+ // check key is unique
+ key = tv->vval.v_string == NULL ? (char_u *)"" : tv->vval.v_string;
+ item = dict_find(dict, key, -1);
+ if (item != NULL)
+ {
+ semsg(_(e_duplicate_key_in_dictionary_str), key);
+ dict_unref(dict);
+ return MAYBE;
+ }
+ item = dictitem_alloc(key);
+ clear_tv(tv);
+ if (unlikely(item == NULL))
+ {
+ dict_unref(dict);
+ return FAIL;
+ }
+ tv = STACK_TV_BOT(2 * (idx - count) + 1);
+ item->di_tv = *tv;
+ item->di_tv.v_lock = 0;
+ tv->v_type = VAR_UNKNOWN;
+ if (dict_add(dict, item) == FAIL)
+ {
+ // can this ever happen?
+ dict_unref(dict);
+ return FAIL;
+ }
+ }
+ }
+
+ if (count > 0)
+ ectx->ec_stack.ga_len -= 2 * count - 1;
+ else if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ return FAIL;
+ else
+ ++ectx->ec_stack.ga_len;
+ tv = STACK_TV_BOT(-1);
+ tv->v_type = VAR_DICT;
+ tv->v_lock = 0;
+ tv->vval.v_dict = dict;
+ if (dict != NULL)
+ ++dict->dv_refcount;
+ return OK;
+}
+
+/*
+ * If debug_tick changed check if "ufunc" has a breakpoint and update
+ * "uf_has_breakpoint".
+ */
+ void
+update_has_breakpoint(ufunc_T *ufunc)
+{
+ if (ufunc->uf_debug_tick == debug_tick)
+ return;
+
+ linenr_T breakpoint;
+
+ ufunc->uf_debug_tick = debug_tick;
+ breakpoint = dbg_find_breakpoint(FALSE, ufunc->uf_name, 0);
+ ufunc->uf_has_breakpoint = breakpoint > 0;
+}
+
+static garray_T dict_stack = GA_EMPTY;
+
+/*
+ * Put a value on the dict stack. This consumes "tv".
+ */
+ static int
+dict_stack_save(typval_T *tv)
+{
+ if (dict_stack.ga_growsize == 0)
+ ga_init2(&dict_stack, sizeof(typval_T), 10);
+ if (ga_grow(&dict_stack, 1) == FAIL)
+ return FAIL;
+ ((typval_T *)dict_stack.ga_data)[dict_stack.ga_len] = *tv;
+ ++dict_stack.ga_len;
+ return OK;
+}
+
+/*
+ * Get the typval at top of the dict stack.
+ */
+ static typval_T *
+dict_stack_get_tv(void)
+{
+ if (dict_stack.ga_len == 0)
+ return NULL;
+ return ((typval_T *)dict_stack.ga_data) + dict_stack.ga_len - 1;
+}
+
+/*
+ * Get the dict at top of the dict stack.
+ */
+ static dict_T *
+dict_stack_get_dict(void)
+{
+ typval_T *tv;
+
+ if (dict_stack.ga_len == 0)
+ return NULL;
+ tv = ((typval_T *)dict_stack.ga_data) + dict_stack.ga_len - 1;
+ if (tv->v_type == VAR_DICT)
+ return tv->vval.v_dict;
+ return NULL;
+}
+
+/*
+ * Drop an item from the dict stack.
+ */
+ static void
+dict_stack_drop(void)
+{
+ if (dict_stack.ga_len == 0)
+ {
+ iemsg("Dict stack underflow");
+ return;
+ }
+ --dict_stack.ga_len;
+ clear_tv(((typval_T *)dict_stack.ga_data) + dict_stack.ga_len);
+}
+
+/*
+ * Drop items from the dict stack until the length is equal to "len".
+ */
+ static void
+dict_stack_clear(int len)
+{
+ while (dict_stack.ga_len > len)
+ dict_stack_drop();
+}
+
+/*
+ * Get a pointer to useful "pt_outer" of "pt".
+ */
+ static outer_T *
+get_pt_outer(partial_T *pt)
+{
+ partial_T *ptref = pt->pt_outer_partial;
+
+ if (ptref == NULL)
+ return &pt->pt_outer;
+
+ // partial using partial (recursively)
+ while (ptref->pt_outer_partial != NULL)
+ ptref = ptref->pt_outer_partial;
+ return &ptref->pt_outer;
+}
+
+/*
+ * Check "argcount" arguments on the stack against what "ufunc" expects.
+ * "off" is the offset of arguments on the stack.
+ * Return OK or FAIL.
+ */
+ static int
+check_ufunc_arg_types(ufunc_T *ufunc, int argcount, int off, ectx_T *ectx)
+{
+ if (ufunc->uf_arg_types == NULL && ufunc->uf_va_type == NULL)
+ return OK;
+
+ typval_T *argv = STACK_TV_BOT(0) - argcount - off;
+
+ // The function can change at runtime, check that the argument
+ // types are correct.
+ for (int i = 0; i < argcount; ++i)
+ {
+ type_T *type = NULL;
+
+ // assume a v:none argument, using the default value, is always OK
+ if (argv[i].v_type == VAR_SPECIAL
+ && argv[i].vval.v_number == VVAL_NONE)
+ continue;
+ // only pass values to user functions, never types
+ if (check_typval_is_value(&argv[i]) == FAIL)
+ return FAIL;
+
+ if (i < ufunc->uf_args.ga_len && ufunc->uf_arg_types != NULL)
+ type = ufunc->uf_arg_types[i];
+ else if (ufunc->uf_va_type != NULL)
+ type = ufunc->uf_va_type->tt_member;
+ if (type != NULL && check_typval_arg_type(type,
+ &argv[i], NULL, i + 1) == FAIL)
+ return FAIL;
+ }
+ return OK;
+}
+
+/*
+ * Call compiled function "cdf_idx" from compiled code.
+ * This adds a stack frame and sets the instruction pointer to the start of the
+ * called function.
+ * If "pt_arg" is not NULL use "pt_arg->pt_outer" for ec_outer_ref->or_outer.
+ *
+ * Stack has:
+ * - current arguments (already there)
+ * - omitted optional argument (default values) added here
+ * - stack frame:
+ * - pointer to calling function
+ * - Index of next instruction in calling function
+ * - previous frame pointer
+ * - reserved space for local variables
+ */
+ static int
+call_dfunc(
+ int cdf_idx,
+ partial_T *pt_arg,
+ int argcount_arg,
+ ectx_T *ectx)
+{
+ int argcount = argcount_arg;
+ dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data) + cdf_idx;
+ ufunc_T *ufunc = dfunc->df_ufunc;
+ int did_emsg_before = did_emsg_cumul + did_emsg;
+ int arg_to_add;
+ int vararg_count = 0;
+ int varcount;
+ int idx;
+ estack_T *entry;
+ funclocal_T *floc = NULL;
+ int res = OK;
+ compiletype_T compile_type;
+
+ if (dfunc->df_deleted)
+ {
+ // don't use ufunc->uf_name, it may have been freed
+ emsg_funcname(e_function_was_deleted_str,
+ dfunc->df_name == NULL ? (char_u *)"unknown" : dfunc->df_name);
+ return FAIL;
+ }
+
+#ifdef FEAT_PROFILE
+ if (do_profiling == PROF_YES)
+ {
+ if (GA_GROW_OK(&profile_info_ga, 1))
+ {
+ profinfo_T *info = ((profinfo_T *)profile_info_ga.ga_data)
+ + profile_info_ga.ga_len;
+ ++profile_info_ga.ga_len;
+ CLEAR_POINTER(info);
+ profile_may_start_func(info, ufunc,
+ (((dfunc_T *)def_functions.ga_data)
+ + ectx->ec_dfunc_idx)->df_ufunc);
+ }
+ }
+#endif
+
+ // When debugging and using "cont" switches to the not-debugged
+ // instructions, may need to still compile them.
+ compile_type = get_compile_type(ufunc);
+ if (func_needs_compiling(ufunc, compile_type))
+ {
+ res = compile_def_function(ufunc, FALSE, compile_type, NULL);
+
+ // compile_def_function() may cause def_functions.ga_data to change
+ dfunc = ((dfunc_T *)def_functions.ga_data) + cdf_idx;
+ }
+ if (res == FAIL || INSTRUCTIONS(dfunc) == NULL)
+ {
+ if (did_emsg_cumul + did_emsg == did_emsg_before)
+ semsg(_(e_function_is_not_compiled_str),
+ printable_func_name(ufunc));
+ return FAIL;
+ }
+
+ if (ufunc->uf_va_name != NULL)
+ {
+ // Need to make a list out of the vararg arguments.
+ // Stack at time of call with 2 varargs:
+ // normal_arg
+ // optional_arg
+ // vararg_1
+ // vararg_2
+ // After creating the list:
+ // normal_arg
+ // optional_arg
+ // vararg-list
+ // With missing optional arguments we get:
+ // normal_arg
+ // After creating the list
+ // normal_arg
+ // (space for optional_arg)
+ // vararg-list
+ vararg_count = argcount - ufunc->uf_args.ga_len;
+ if (vararg_count < 0)
+ vararg_count = 0;
+ else
+ argcount -= vararg_count;
+ if (exe_newlist(vararg_count, ectx) == FAIL)
+ return FAIL;
+
+ vararg_count = 1;
+ }
+
+ arg_to_add = ufunc->uf_args.ga_len - argcount;
+ if (arg_to_add < 0)
+ {
+ semsg(NGETTEXT(e_one_argument_too_many, e_nr_arguments_too_many,
+ -arg_to_add), -arg_to_add);
+ return FAIL;
+ }
+ else if (arg_to_add > ufunc->uf_def_args.ga_len)
+ {
+ int missing = arg_to_add - ufunc->uf_def_args.ga_len;
+
+ semsg(NGETTEXT(e_one_argument_too_few, e_nr_arguments_too_few,
+ missing), missing);
+ return FAIL;
+ }
+
+ // If this is an object method, the object is just before the arguments.
+ typval_T *obj = STACK_TV_BOT(0) - argcount - vararg_count - 1;
+
+ if (IS_OBJECT_METHOD(ufunc) && !IS_CONSTRUCTOR_METHOD(ufunc)
+ && obj->v_type == VAR_OBJECT && obj->vval.v_object == NULL)
+ {
+ // If this is not a constructor method, then a valid object is
+ // needed.
+ emsg(_(e_using_null_object));
+ return FAIL;
+ }
+
+ // Check the argument types.
+ if (check_ufunc_arg_types(ufunc, argcount, vararg_count, ectx) == FAIL)
+ return FAIL;
+
+ // While check_ufunc_arg_types call, def function compilation process may
+ // run. If so many def functions are compiled, def_functions array may be
+ // reallocated and dfunc may no longer have valid pointer. Get the object
+ // pointer from def_functions again here.
+ dfunc = ((dfunc_T *)def_functions.ga_data) + cdf_idx;
+
+ // Reserve space for:
+ // - missing arguments
+ // - stack frame
+ // - local variables
+ // - if needed: a counter for number of closures created in
+ // ectx->ec_funcrefs.
+ varcount = dfunc->df_varcount + dfunc->df_has_closure;
+ if (GA_GROW_FAILS(&ectx->ec_stack,
+ arg_to_add + STACK_FRAME_SIZE + varcount))
+ return FAIL;
+
+ // The object pointer is in the execution typval stack. The GA_GROW call
+ // above may have reallocated the execution typval stack. So the object
+ // pointer may not be valid anymore. Get the object pointer again from the
+ // execution stack.
+ obj = STACK_TV_BOT(0) - argcount - vararg_count - 1;
+
+ // If depth of calling is getting too high, don't execute the function.
+ if (funcdepth_increment() == FAIL)
+ return FAIL;
+ ++ex_nesting_level;
+
+ // Only make a copy of funclocal if it contains something to restore.
+ if (ectx->ec_funclocal.floc_restore_cmdmod)
+ {
+ floc = ALLOC_ONE(funclocal_T);
+ if (floc == NULL)
+ return FAIL;
+ *floc = ectx->ec_funclocal;
+ ectx->ec_funclocal.floc_restore_cmdmod = FALSE;
+ }
+
+ // Move the vararg-list to below the missing optional arguments.
+ if (vararg_count > 0 && arg_to_add > 0)
+ *STACK_TV_BOT(arg_to_add - 1) = *STACK_TV_BOT(-1);
+
+ // Reserve space for omitted optional arguments, filled in soon.
+ for (idx = 0; idx < arg_to_add; ++idx)
+ STACK_TV_BOT(idx - vararg_count)->v_type = VAR_UNKNOWN;
+ ectx->ec_stack.ga_len += arg_to_add;
+
+ // Store current execution state in stack frame for ISN_RETURN.
+ STACK_TV_BOT(STACK_FRAME_FUNC_OFF)->vval.v_number = ectx->ec_dfunc_idx;
+ STACK_TV_BOT(STACK_FRAME_IIDX_OFF)->vval.v_number = ectx->ec_iidx;
+ STACK_TV_BOT(STACK_FRAME_INSTR_OFF)->vval.v_string = (void *)ectx->ec_instr;
+ STACK_TV_BOT(STACK_FRAME_OUTER_OFF)->vval.v_string =
+ (void *)ectx->ec_outer_ref;
+ STACK_TV_BOT(STACK_FRAME_FUNCLOCAL_OFF)->vval.v_string = (void *)floc;
+ STACK_TV_BOT(STACK_FRAME_IDX_OFF)->vval.v_number = ectx->ec_frame_idx;
+ ectx->ec_frame_idx = ectx->ec_stack.ga_len;
+
+ // Initialize all local variables to number zero. Also initialize the
+ // variable that counts how many closures were created. This is used in
+ // handle_closure_in_use().
+ int initcount = dfunc->df_varcount + (dfunc->df_has_closure ? 1 : 0);
+ for (idx = 0; idx < initcount; ++idx)
+ {
+ typval_T *tv = STACK_TV_BOT(STACK_FRAME_SIZE + idx);
+
+ tv->v_type = VAR_NUMBER;
+ tv->vval.v_number = 0;
+ }
+ ectx->ec_stack.ga_len += STACK_FRAME_SIZE + varcount;
+
+ // For an object method move the object from just before the arguments to
+ // the first local variable.
+ if (IS_OBJECT_METHOD(ufunc))
+ {
+ if (obj->v_type != VAR_OBJECT)
+ {
+ semsg(_(e_internal_error_str), "type in stack is not an object");
+ return FAIL;
+ }
+
+ *STACK_TV_VAR(0) = *obj;
+ obj->v_type = VAR_UNKNOWN;
+ }
+
+ partial_T *pt = pt_arg != NULL ? pt_arg : ufunc->uf_partial;
+ if (pt != NULL || (ufunc->uf_flags & FC_CLOSURE))
+ {
+ outer_ref_T *ref = ALLOC_CLEAR_ONE(outer_ref_T);
+
+ if (ref == NULL)
+ return FAIL;
+ if (pt != NULL)
+ {
+ ref->or_outer = get_pt_outer(pt);
+ ++pt->pt_refcount;
+ ref->or_partial = pt;
+ }
+ else
+ {
+ ref->or_outer = ALLOC_CLEAR_ONE(outer_T);
+ if (unlikely(ref->or_outer == NULL))
+ {
+ vim_free(ref);
+ return FAIL;
+ }
+ ref->or_outer_allocated = TRUE;
+ ref->or_outer->out_stack = &ectx->ec_stack;
+ ref->or_outer->out_frame_idx = ectx->ec_frame_idx;
+ if (ectx->ec_outer_ref != NULL)
+ ref->or_outer->out_up = ectx->ec_outer_ref->or_outer;
+ }
+ ectx->ec_outer_ref = ref;
+ }
+ else
+ ectx->ec_outer_ref = NULL;
+
+ ++ufunc->uf_calls;
+
+ // Set execution state to the start of the called function.
+ ectx->ec_dfunc_idx = cdf_idx;
+ ectx->ec_instr = INSTRUCTIONS(dfunc);
+ entry = estack_push_ufunc(ufunc, 1);
+ if (entry != NULL)
+ {
+ // Set the script context to the script where the function was defined.
+ // Save the current context so it can be restored on return.
+ entry->es_save_sctx = current_sctx;
+ current_sctx = ufunc->uf_script_ctx;
+ }
+
+ // Start execution at the first instruction.
+ ectx->ec_iidx = 0;
+
+ return OK;
+}
+
+// Double linked list of funcstack_T in use.
+static funcstack_T *first_funcstack = NULL;
+
+ static void
+add_funcstack_to_list(funcstack_T *funcstack)
+{
+ // Link in list of funcstacks.
+ if (first_funcstack != NULL)
+ first_funcstack->fs_prev = funcstack;
+ funcstack->fs_next = first_funcstack;
+ funcstack->fs_prev = NULL;
+ first_funcstack = funcstack;
+}
+
+ static void
+remove_funcstack_from_list(funcstack_T *funcstack)
+{
+ if (funcstack->fs_prev == NULL)
+ first_funcstack = funcstack->fs_next;
+ else
+ funcstack->fs_prev->fs_next = funcstack->fs_next;
+ if (funcstack->fs_next != NULL)
+ funcstack->fs_next->fs_prev = funcstack->fs_prev;
+}
+
+/*
+ * Used when returning from a function: Check if any closure is still
+ * referenced. If so then move the arguments and variables to a separate piece
+ * of stack to be used when the closure is called.
+ * When "free_arguments" is TRUE the arguments are to be freed.
+ * Returns FAIL when out of memory.
+ */
+ static int
+handle_closure_in_use(ectx_T *ectx, int free_arguments)
+{
+ dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data)
+ + ectx->ec_dfunc_idx;
+ int argcount;
+ int top;
+ int idx;
+ typval_T *tv;
+ int closure_in_use = FALSE;
+ garray_T *gap = &ectx->ec_funcrefs;
+ varnumber_T closure_count;
+
+ if (dfunc->df_ufunc == NULL)
+ return OK; // function was freed
+ if (dfunc->df_has_closure == 0)
+ return OK; // no closures
+ tv = STACK_TV(ectx->ec_frame_idx + STACK_FRAME_SIZE + dfunc->df_varcount);
+ closure_count = tv->vval.v_number;
+ if (closure_count == 0)
+ return OK; // no funcrefs created
+
+ // Compute "top": the first entry in the stack used by the function.
+ // This is the first argument (after that comes the stack frame and then
+ // the local variables).
+ argcount = ufunc_argcount(dfunc->df_ufunc);
+ top = ectx->ec_frame_idx - argcount;
+
+ // Check if any created closure is still in use.
+ for (idx = 0; idx < closure_count; ++idx)
+ {
+ partial_T *pt;
+ int off = gap->ga_len - closure_count + idx;
+
+ if (off < 0)
+ continue; // count is off or already done
+ pt = ((partial_T **)gap->ga_data)[off];
+ if (pt->pt_refcount > 1)
+ {
+ int refcount = pt->pt_refcount;
+ int i;
+
+ // A Reference in a local variable doesn't count, it gets
+ // unreferenced on return.
+ for (i = 0; i < dfunc->df_varcount; ++i)
+ {
+ typval_T *stv = STACK_TV(ectx->ec_frame_idx
+ + STACK_FRAME_SIZE + i);
+ if (stv->v_type == VAR_PARTIAL && pt == stv->vval.v_partial)
+ --refcount;
+ }
+ if (refcount > 1)
+ {
+ closure_in_use = TRUE;
+ break;
+ }
+ }
+ }
+
+ if (closure_in_use)
+ {
+ funcstack_T *funcstack = ALLOC_CLEAR_ONE(funcstack_T);
+ typval_T *stack;
+
+ // A closure is using the arguments and/or local variables.
+ // Move them to the called function.
+ if (funcstack == NULL)
+ return FAIL;
+
+ funcstack->fs_var_offset = argcount + STACK_FRAME_SIZE;
+ funcstack->fs_ga.ga_len = funcstack->fs_var_offset
+ + dfunc->df_varcount;
+ stack = ALLOC_CLEAR_MULT(typval_T, funcstack->fs_ga.ga_len);
+ funcstack->fs_ga.ga_data = stack;
+ if (stack == NULL)
+ {
+ vim_free(funcstack);
+ return FAIL;
+ }
+ add_funcstack_to_list(funcstack);
+
+ // Move or copy the arguments.
+ for (idx = 0; idx < argcount; ++idx)
+ {
+ tv = STACK_TV(top + idx);
+ if (free_arguments)
+ {
+ *(stack + idx) = *tv;
+ tv->v_type = VAR_UNKNOWN;
+ }
+ else
+ copy_tv(tv, stack + idx);
+ }
+ // Skip the stack frame.
+ // Move the local variables.
+ for (idx = 0; idx < dfunc->df_varcount; ++idx)
+ {
+ tv = STACK_TV(ectx->ec_frame_idx + STACK_FRAME_SIZE + idx);
+
+ // A partial created for a local function, that is also used as a
+ // local variable, has a reference count for the variable, thus
+ // will never go down to zero. When all these refcounts are one
+ // then the funcstack is unused. We need to count how many we have
+ // so we know when to check.
+ if (tv->v_type == VAR_PARTIAL && tv->vval.v_partial != NULL)
+ {
+ int i;
+
+ for (i = 0; i < closure_count; ++i)
+ if (tv->vval.v_partial == ((partial_T **)gap->ga_data)[
+ gap->ga_len - closure_count + i])
+ ++funcstack->fs_min_refcount;
+ }
+
+ *(stack + funcstack->fs_var_offset + idx) = *tv;
+ tv->v_type = VAR_UNKNOWN;
+ }
+
+ for (idx = 0; idx < closure_count; ++idx)
+ {
+ partial_T *pt = ((partial_T **)gap->ga_data)[gap->ga_len
+ - closure_count + idx];
+ if (pt->pt_refcount > 1)
+ {
+ ++funcstack->fs_refcount;
+ pt->pt_funcstack = funcstack;
+ pt->pt_outer.out_stack = &funcstack->fs_ga;
+ pt->pt_outer.out_frame_idx = ectx->ec_frame_idx - top;
+ }
+ }
+ }
+
+ for (idx = 0; idx < closure_count; ++idx)
+ partial_unref(((partial_T **)gap->ga_data)[gap->ga_len
+ - closure_count + idx]);
+ gap->ga_len -= closure_count;
+ if (gap->ga_len == 0)
+ ga_clear(gap);
+
+ return OK;
+}
+
+/*
+ * Called when a partial is freed or its reference count goes down to one. The
+ * funcstack may be the only reference to the partials in the local variables.
+ * Go over all of them, the funcref and can be freed if all partials
+ * referencing the funcstack have a reference count of one.
+ * Returns TRUE if the funcstack is freed, the partial referencing it will then
+ * also have been freed.
+ */
+ int
+funcstack_check_refcount(funcstack_T *funcstack)
+{
+ int i;
+ garray_T *gap = &funcstack->fs_ga;
+ int done = 0;
+ typval_T *stack;
+
+ if (funcstack->fs_refcount > funcstack->fs_min_refcount)
+ return FALSE;
+ for (i = funcstack->fs_var_offset; i < gap->ga_len; ++i)
+ {
+ typval_T *tv = ((typval_T *)gap->ga_data) + i;
+
+ if (tv->v_type == VAR_PARTIAL && tv->vval.v_partial != NULL
+ && tv->vval.v_partial->pt_funcstack == funcstack
+ && tv->vval.v_partial->pt_refcount == 1)
+ ++done;
+ }
+ if (done != funcstack->fs_min_refcount)
+ return FALSE;
+
+ stack = gap->ga_data;
+
+ // All partials referencing the funcstack have a reference count of
+ // one, thus the funcstack is no longer of use.
+ for (i = 0; i < gap->ga_len; ++i)
+ clear_tv(stack + i);
+ vim_free(stack);
+ remove_funcstack_from_list(funcstack);
+ vim_free(funcstack);
+
+ return TRUE;
+}
+
+/*
+ * For garbage collecting: set references in all variables referenced by
+ * all funcstacks.
+ */
+ int
+set_ref_in_funcstacks(int copyID)
+{
+ funcstack_T *funcstack;
+
+ for (funcstack = first_funcstack; funcstack != NULL;
+ funcstack = funcstack->fs_next)
+ {
+ typval_T *stack = funcstack->fs_ga.ga_data;
+ int i;
+
+ for (i = 0; i < funcstack->fs_ga.ga_len; ++i)
+ if (set_ref_in_item(stack + i, copyID, NULL, NULL))
+ return TRUE; // abort
+ }
+ return FALSE;
+}
+
+// Ugly static to avoid passing the execution context around through many
+// layers.
+static ectx_T *current_ectx = NULL;
+
+/*
+ * Return TRUE if currently executing a :def function.
+ * Can be used by builtin functions only.
+ */
+ int
+in_def_function(void)
+{
+ return current_ectx != NULL;
+}
+
+/*
+ * If executing a class/object method, then fill in the lval_T.
+ * Set lr_tv to the executing item, and lr_exec_class to the executing class;
+ * use free_tv and class_unref when finished with the lval_root.
+ * For use by builtin functions.
+ *
+ * Return FAIL and do nothing if not executing in a class; otherwise OK.
+ */
+ int
+fill_exec_lval_root(lval_root_T *root)
+{
+ ectx_T *ectx = current_ectx;
+ if (ectx != NULL)
+ {
+ dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data)
+ + current_ectx->ec_dfunc_idx;
+ ufunc_T *ufunc = dfunc->df_ufunc;
+ if (ufunc->uf_class != NULL) // executing a method?
+ {
+ typval_T *tv = alloc_tv();
+ if (tv != NULL)
+ {
+ CLEAR_POINTER(root);
+ root->lr_tv = tv;
+ copy_tv(STACK_TV_VAR(0), root->lr_tv);
+ root->lr_cl_exec = ufunc->uf_class;
+ ++root->lr_cl_exec->class_refcount;
+ return OK;
+ }
+ }
+ }
+
+ return FAIL;
+}
+
+/*
+ * Clear "current_ectx" and return the previous value. To be used when calling
+ * a user function.
+ */
+ ectx_T *
+clear_current_ectx(void)
+{
+ ectx_T *r = current_ectx;
+
+ current_ectx = NULL;
+ return r;
+}
+
+ void
+restore_current_ectx(ectx_T *ectx)
+{
+ if (current_ectx != NULL)
+ iemsg("Restoring current_ectx while it is not NULL");
+ current_ectx = ectx;
+}
+
+/*
+ * Add an entry for a deferred function call to the currently executing
+ * function.
+ * Return the list or NULL when failed.
+ */
+ static list_T *
+add_defer_item(int var_idx, int argcount, ectx_T *ectx)
+{
+ typval_T *defer_tv = STACK_TV_VAR(var_idx);
+ list_T *defer_l;
+ list_T *l;
+ typval_T listval;
+
+ if (defer_tv->v_type != VAR_LIST)
+ {
+ // first time, allocate the list
+ if (rettv_list_alloc(defer_tv) == FAIL)
+ return NULL;
+ }
+ defer_l = defer_tv->vval.v_list;
+
+ l = list_alloc_with_items(argcount + 1);
+ if (l == NULL)
+ return NULL;
+ listval.v_type = VAR_LIST;
+ listval.vval.v_list = l;
+ listval.v_lock = 0;
+ if (list_insert_tv(defer_l, &listval, defer_l->lv_first) == FAIL)
+ {
+ vim_free(l);
+ return NULL;
+ }
+
+ return l;
+}
+
+/*
+ * Handle ISN_DEFER. Stack has a function reference and "argcount" arguments.
+ * The local variable that lists deferred functions is "var_idx".
+ * Returns OK or FAIL.
+ */
+ static int
+defer_command(int var_idx, int argcount, ectx_T *ectx)
+{
+ list_T *l = add_defer_item(var_idx, argcount, ectx);
+ int i;
+ typval_T *func_tv;
+
+ if (l == NULL)
+ return FAIL;
+
+ func_tv = STACK_TV_BOT(-argcount - 1);
+ if (func_tv->v_type != VAR_PARTIAL && func_tv->v_type != VAR_FUNC)
+ {
+ semsg(_(e_expected_str_but_got_str),
+ "function or partial",
+ vartype_name(func_tv->v_type));
+ return FAIL;
+ }
+ list_set_item(l, 0, func_tv);
+
+ for (i = 0; i < argcount; ++i)
+ list_set_item(l, i + 1, STACK_TV_BOT(-argcount + i));
+ ectx->ec_stack.ga_len -= argcount + 1;
+ return OK;
+}
+
+/*
+ * Add a deferred call for "name" with arguments "argvars[argcount]".
+ * Consumes "name", also on failure.
+ * Only to be called when in_def_function() returns TRUE.
+ */
+ int
+add_defer_function(char_u *name, int argcount, typval_T *argvars)
+{
+ dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data)
+ + current_ectx->ec_dfunc_idx;
+ list_T *l;
+ typval_T func_tv;
+ int i;
+
+ if (dfunc->df_defer_var_idx == 0)
+ {
+ iemsg("df_defer_var_idx is zero");
+ vim_free(name);
+ return FAIL;
+ }
+
+ l = add_defer_item(dfunc->df_defer_var_idx - 1, argcount, current_ectx);
+ if (l == NULL)
+ {
+ vim_free(name);
+ return FAIL;
+ }
+
+ func_tv.v_type = VAR_FUNC;
+ func_tv.v_lock = 0;
+ func_tv.vval.v_string = name;
+ list_set_item(l, 0, &func_tv);
+
+ for (i = 0; i < argcount; ++i)
+ list_set_item(l, i + 1, argvars + i);
+ return OK;
+}
+
+/*
+ * Invoked when returning from a function: Invoke any deferred calls.
+ */
+ static void
+invoke_defer_funcs(ectx_T *ectx)
+{
+ dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data)
+ + ectx->ec_dfunc_idx;
+ typval_T *defer_tv = STACK_TV_VAR(dfunc->df_defer_var_idx - 1);
+ listitem_T *li;
+
+ if (defer_tv->v_type != VAR_LIST)
+ return; // no function added
+ FOR_ALL_LIST_ITEMS(defer_tv->vval.v_list, li)
+ {
+ list_T *l = li->li_tv.vval.v_list;
+ typval_T rettv;
+ typval_T argvars[MAX_FUNC_ARGS];
+ int i;
+ listitem_T *arg_li = l->lv_first;
+ typval_T *functv = &l->lv_first->li_tv;
+ int argcount = l->lv_len - 1;
+
+ if (functv->vval.v_string == NULL)
+ // already being called, can happen if function does ":qa"
+ continue;
+
+ for (i = 0; i < argcount; ++i)
+ {
+ arg_li = arg_li->li_next;
+ argvars[i] = arg_li->li_tv;
+ }
+
+ funcexe_T funcexe;
+ CLEAR_FIELD(funcexe);
+ funcexe.fe_evaluate = TRUE;
+ rettv.v_type = VAR_UNKNOWN;
+ if (functv->v_type == VAR_PARTIAL)
+ {
+ funcexe.fe_partial = functv->vval.v_partial;
+ funcexe.fe_object = functv->vval.v_partial->pt_obj;
+ if (funcexe.fe_object != NULL)
+ ++funcexe.fe_object->obj_refcount;
+ }
+
+ char_u *name = functv->vval.v_string;
+ functv->vval.v_string = NULL;
+
+ // If the deferred function is called after an exception, then only the
+ // first statement in the function will be executed (because of the
+ // exception). So save and restore the try/catch/throw exception
+ // state.
+ exception_state_T estate;
+ exception_state_save(&estate);
+ exception_state_clear();
+
+ (void)call_func(name, -1, &rettv, argcount, argvars, &funcexe);
+
+ exception_state_restore(&estate);
+
+ clear_tv(&rettv);
+ vim_free(name);
+ }
+}
+
+/*
+ * Return from the current function.
+ */
+ static int
+func_return(ectx_T *ectx)
+{
+ int idx;
+ int ret_idx;
+ dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data)
+ + ectx->ec_dfunc_idx;
+ int argcount = ufunc_argcount(dfunc->df_ufunc);
+ estack_T *entry;
+ int prev_dfunc_idx = STACK_TV(ectx->ec_frame_idx
+ + STACK_FRAME_FUNC_OFF)->vval.v_number;
+ funclocal_T *floc;
+#ifdef FEAT_PROFILE
+ dfunc_T *prev_dfunc = ((dfunc_T *)def_functions.ga_data)
+ + prev_dfunc_idx;
+
+ if (do_profiling == PROF_YES)
+ {
+ ufunc_T *caller = prev_dfunc->df_ufunc;
+
+ if (dfunc->df_ufunc->uf_profiling
+ || (caller != NULL && caller->uf_profiling))
+ {
+ profile_may_end_func(((profinfo_T *)profile_info_ga.ga_data)
+ + profile_info_ga.ga_len - 1, dfunc->df_ufunc, caller);
+ --profile_info_ga.ga_len;
+ }
+ }
+#endif
+
+ if (dfunc->df_defer_var_idx > 0)
+ invoke_defer_funcs(ectx);
+
+ // No check for uf_refcount being zero, cannot think of a way that would
+ // happen.
+ --dfunc->df_ufunc->uf_calls;
+
+ // execution context goes one level up
+ entry = estack_pop();
+ if (entry != NULL)
+ current_sctx = entry->es_save_sctx;
+
+ if (handle_closure_in_use(ectx, TRUE) == FAIL)
+ return FAIL;
+
+ // Clear the arguments. If this was an object method also clear the
+ // object, it is just before the arguments.
+ int top = ectx->ec_frame_idx - argcount;
+ if (IS_OBJECT_METHOD(dfunc->df_ufunc))
+ --top;
+ for (idx = top; idx < ectx->ec_frame_idx; ++idx)
+ clear_tv(STACK_TV(idx));
+
+ // Clear local variables and temp values, but not the return value.
+ for (idx = ectx->ec_frame_idx + STACK_FRAME_SIZE;
+ idx < ectx->ec_stack.ga_len - 1; ++idx)
+ clear_tv(STACK_TV(idx));
+
+ // The return value should be on top of the stack. However, when aborting
+ // it may not be there and ec_frame_idx is the top of the stack.
+ ret_idx = ectx->ec_stack.ga_len - 1;
+ if (ret_idx == ectx->ec_frame_idx + STACK_FRAME_IDX_OFF)
+ ret_idx = 0;
+
+ if (ectx->ec_outer_ref != NULL)
+ {
+ if (ectx->ec_outer_ref->or_outer_allocated)
+ vim_free(ectx->ec_outer_ref->or_outer);
+ partial_unref(ectx->ec_outer_ref->or_partial);
+ vim_free(ectx->ec_outer_ref);
+ }
+
+ // Restore the previous frame.
+ ectx->ec_dfunc_idx = prev_dfunc_idx;
+ ectx->ec_iidx = STACK_TV(ectx->ec_frame_idx
+ + STACK_FRAME_IIDX_OFF)->vval.v_number;
+ ectx->ec_instr = (void *)STACK_TV(ectx->ec_frame_idx
+ + STACK_FRAME_INSTR_OFF)->vval.v_string;
+ ectx->ec_outer_ref = (void *)STACK_TV(ectx->ec_frame_idx
+ + STACK_FRAME_OUTER_OFF)->vval.v_string;
+ floc = (void *)STACK_TV(ectx->ec_frame_idx
+ + STACK_FRAME_FUNCLOCAL_OFF)->vval.v_string;
+ // restoring ec_frame_idx must be last
+ ectx->ec_frame_idx = STACK_TV(ectx->ec_frame_idx
+ + STACK_FRAME_IDX_OFF)->vval.v_number;
+
+ if (floc == NULL)
+ ectx->ec_funclocal.floc_restore_cmdmod = FALSE;
+ else
+ {
+ ectx->ec_funclocal = *floc;
+ vim_free(floc);
+ }
+
+ if (ret_idx > 0)
+ {
+ // Reset the stack to the position before the call, with a spot for the
+ // return value, moved there from above the frame.
+ ectx->ec_stack.ga_len = top + 1;
+ *STACK_TV_BOT(-1) = *STACK_TV(ret_idx);
+ }
+ else
+ // Reset the stack to the position before the call.
+ ectx->ec_stack.ga_len = top;
+
+ funcdepth_decrement();
+ --ex_nesting_level;
+ return OK;
+}
+
+/*
+ * Prepare arguments and rettv for calling a builtin or user function.
+ */
+ static int
+call_prepare(int argcount, typval_T *argvars, ectx_T *ectx)
+{
+ int idx;
+ typval_T *tv;
+
+ // Move arguments from bottom of the stack to argvars[] and add terminator.
+ for (idx = 0; idx < argcount; ++idx)
+ argvars[idx] = *STACK_TV_BOT(idx - argcount);
+ argvars[argcount].v_type = VAR_UNKNOWN;
+
+ // Result replaces the arguments on the stack.
+ if (argcount > 0)
+ ectx->ec_stack.ga_len -= argcount - 1;
+ else if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ return FAIL;
+ else
+ ++ectx->ec_stack.ga_len;
+
+ // Default return value is zero.
+ tv = STACK_TV_BOT(-1);
+ tv->v_type = VAR_NUMBER;
+ tv->vval.v_number = 0;
+ tv->v_lock = 0;
+
+ return OK;
+}
+
+/*
+ * Call a builtin function by index.
+ */
+ static int
+call_bfunc(int func_idx, int argcount, ectx_T *ectx)
+{
+ typval_T argvars[MAX_FUNC_ARGS];
+ int idx;
+ int did_emsg_before = did_emsg;
+ ectx_T *prev_ectx = current_ectx;
+ char *save_func_name = ectx->ec_where.wt_func_name;
+
+ if (call_prepare(argcount, argvars, ectx) == FAIL)
+ return FAIL;
+ ectx->ec_where.wt_func_name = internal_func_name(func_idx);
+
+ // Call the builtin function. Set "current_ectx" so that when it
+ // recursively invokes call_def_function() a closure context can be set.
+ current_ectx = ectx;
+ call_internal_func_by_idx(func_idx, argvars, STACK_TV_BOT(-1));
+ current_ectx = prev_ectx;
+ ectx->ec_where.wt_func_name = save_func_name;
+
+ // Clear the arguments.
+ for (idx = 0; idx < argcount; ++idx)
+ clear_tv(&argvars[idx]);
+
+ if (did_emsg > did_emsg_before)
+ return FAIL;
+ return OK;
+}
+
+/*
+ * Execute a user defined function.
+ * If the function is compiled this will add a stack frame and set the
+ * instruction pointer at the start of the function.
+ * Otherwise the function is called here.
+ * If "pt" is not null use "pt->pt_outer" for ec_outer_ref->or_outer.
+ * "iptr" can be used to replace the instruction with a more efficient one.
+ */
+ static int
+call_ufunc(
+ ufunc_T *ufunc,
+ partial_T *pt,
+ int argcount,
+ ectx_T *ectx,
+ isn_T *iptr,
+ dict_T *selfdict)
+{
+ typval_T argvars[MAX_FUNC_ARGS];
+ funcexe_T funcexe;
+ funcerror_T error;
+ int idx;
+ int did_emsg_before = did_emsg;
+ compiletype_T compile_type = get_compile_type(ufunc);
+
+ if (func_needs_compiling(ufunc, compile_type)
+ && compile_def_function(ufunc, FALSE, compile_type, NULL)
+ == FAIL)
+ return FAIL;
+ if (ufunc->uf_def_status == UF_COMPILED)
+ {
+ error = check_user_func_argcount(ufunc, argcount);
+ if (error != FCERR_UNKNOWN)
+ {
+ if (error == FCERR_TOOMANY)
+ semsg(_(e_too_many_arguments_for_function_str),
+ printable_func_name(ufunc));
+ else
+ semsg(_(e_not_enough_arguments_for_function_str),
+ printable_func_name(ufunc));
+ return FAIL;
+ }
+
+ // The function has been compiled, can call it quickly. For a function
+ // that was defined later: we can call it directly next time.
+ if (iptr != NULL)
+ {
+ delete_instr(iptr);
+ iptr->isn_type = ISN_DCALL;
+ iptr->isn_arg.dfunc.cdf_idx = ufunc->uf_dfunc_idx;
+ iptr->isn_arg.dfunc.cdf_argcount = argcount;
+ }
+ return call_dfunc(ufunc->uf_dfunc_idx, pt, argcount, ectx);
+ }
+
+ if (call_prepare(argcount, argvars, ectx) == FAIL)
+ return FAIL;
+ CLEAR_FIELD(funcexe);
+ funcexe.fe_evaluate = TRUE;
+ funcexe.fe_selfdict = selfdict != NULL ? selfdict : dict_stack_get_dict();
+
+ // Call the user function. Result goes in last position on the stack.
+ error = call_user_func_check(ufunc, argcount, argvars,
+ STACK_TV_BOT(-1), &funcexe, funcexe.fe_selfdict);
+
+ // Clear the arguments.
+ for (idx = 0; idx < argcount; ++idx)
+ clear_tv(&argvars[idx]);
+
+ if (error != FCERR_NONE)
+ {
+ user_func_error(error, printable_func_name(ufunc),
+ funcexe.fe_found_var);
+ return FAIL;
+ }
+ if (did_emsg > did_emsg_before)
+ // Error other than from calling the function itself.
+ return FAIL;
+ return OK;
+}
+
+/*
+ * If command modifiers were applied restore them.
+ */
+ static void
+may_restore_cmdmod(funclocal_T *funclocal)
+{
+ if (funclocal->floc_restore_cmdmod)
+ {
+ cmdmod.cmod_filter_regmatch.regprog = NULL;
+ undo_cmdmod(&cmdmod);
+ cmdmod = funclocal->floc_save_cmdmod;
+ funclocal->floc_restore_cmdmod = FALSE;
+ }
+}
+
+/*
+ * Return TRUE if an error was given (not caught in try/catch) or CTRL-C was
+ * pressed.
+ */
+ static int
+vim9_aborting(int prev_uncaught_emsg)
+{
+ return uncaught_emsg > prev_uncaught_emsg || got_int || did_throw;
+}
+
+/*
+ * Execute a function by "name".
+ * This can be a builtin function or a user function.
+ * "iptr" can be used to replace the instruction with a more efficient one.
+ * Returns FAIL if not found without an error message.
+ */
+ static int
+call_by_name(
+ char_u *name,
+ int argcount,
+ ectx_T *ectx,
+ isn_T *iptr,
+ dict_T *selfdict)
+{
+ ufunc_T *ufunc;
+
+ if (builtin_function(name, -1))
+ {
+ int func_idx = find_internal_func(name);
+
+ if (func_idx < 0) // Impossible?
+ return FAIL;
+ if (check_internal_func(func_idx, argcount) < 0)
+ return FAIL;
+ return call_bfunc(func_idx, argcount, ectx);
+ }
+
+ ufunc = find_func(name, FALSE);
+
+ if (ufunc == NULL)
+ {
+ int prev_uncaught_emsg = uncaught_emsg;
+
+ if (script_autoload(name, TRUE))
+ // loaded a package, search for the function again
+ ufunc = find_func(name, FALSE);
+
+ if (vim9_aborting(prev_uncaught_emsg))
+ return FAIL; // bail out if loading the script caused an error
+ }
+
+ if (ufunc != NULL)
+ {
+ if (check_ufunc_arg_types(ufunc, argcount, 0, ectx) == FAIL)
+ return FAIL;
+
+ return call_ufunc(ufunc, NULL, argcount, ectx, iptr, selfdict);
+ }
+
+ return FAIL;
+}
+
+ static int
+call_partial(
+ typval_T *tv,
+ int argcount_arg,
+ ectx_T *ectx)
+{
+ int argcount = argcount_arg;
+ char_u *name = NULL;
+ int called_emsg_before = called_emsg;
+ int res = FAIL;
+ dict_T *selfdict = NULL;
+
+ if (tv->v_type == VAR_PARTIAL)
+ {
+ partial_T *pt = tv->vval.v_partial;
+ int i;
+
+ if (pt->pt_obj != NULL)
+ {
+ // partial with an object method. Push the object before the
+ // function arguments.
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ return FAIL;
+ for (i = 1; i <= argcount; ++i)
+ *STACK_TV_BOT(-i + 1) = *STACK_TV_BOT(-i);
+
+ typval_T *obj_tv = STACK_TV_BOT(-argcount);
+ obj_tv->v_type = VAR_OBJECT;
+ obj_tv->v_lock = 0;
+ obj_tv->vval.v_object = pt->pt_obj;
+ ++pt->pt_obj->obj_refcount;
+ ++ectx->ec_stack.ga_len;
+ }
+
+ if (pt->pt_argc > 0)
+ {
+ // Make space for arguments from the partial, shift the "argcount"
+ // arguments up.
+ if (GA_GROW_FAILS(&ectx->ec_stack, pt->pt_argc))
+ return FAIL;
+ for (i = 1; i <= argcount; ++i)
+ *STACK_TV_BOT(-i + pt->pt_argc) = *STACK_TV_BOT(-i);
+ ectx->ec_stack.ga_len += pt->pt_argc;
+ argcount += pt->pt_argc;
+
+ // copy the arguments from the partial onto the stack
+ for (i = 0; i < pt->pt_argc; ++i)
+ copy_tv(&pt->pt_argv[i], STACK_TV_BOT(-argcount + i));
+ }
+ selfdict = pt->pt_dict;
+
+ if (pt->pt_func != NULL)
+ return call_ufunc(pt->pt_func, pt, argcount, ectx, NULL, selfdict);
+
+ name = pt->pt_name;
+ }
+ else if (tv->v_type == VAR_FUNC)
+ name = tv->vval.v_string;
+ if (name != NULL)
+ {
+ char_u fname_buf[FLEN_FIXED + 1];
+ char_u *tofree = NULL;
+ funcerror_T error = FCERR_NONE;
+ char_u *fname;
+
+ // May need to translate <SNR>123_ to K_SNR.
+ fname = fname_trans_sid(name, fname_buf, &tofree, &error);
+ if (error != FCERR_NONE)
+ res = FAIL;
+ else
+ res = call_by_name(fname, argcount, ectx, NULL, selfdict);
+ vim_free(tofree);
+ }
+
+ if (res == FAIL)
+ {
+ if (called_emsg == called_emsg_before)
+ emsg_funcname(e_unknown_function_str,
+ name == NULL ? (char_u *)"[unknown]" : name);
+ return FAIL;
+ }
+ return OK;
+}
+
+/*
+ * Check if "lock" is VAR_LOCKED or VAR_FIXED. If so give an error and return
+ * TRUE.
+ */
+ static int
+error_if_locked(int lock, char *error)
+{
+ if (lock & (VAR_LOCKED | VAR_FIXED))
+ {
+ emsg(_(error));
+ return TRUE;
+ }
+ return FALSE;
+}
+
+/*
+ * Give an error if "tv" is not a number and return FAIL.
+ */
+ static int
+check_for_number(typval_T *tv)
+{
+ if (tv->v_type != VAR_NUMBER)
+ {
+ semsg(_(e_expected_str_but_got_str),
+ vartype_name(VAR_NUMBER), vartype_name(tv->v_type));
+ return FAIL;
+ }
+ return OK;
+}
+
+/*
+ * Store "tv" in variable "name".
+ * This is for s: and g: variables.
+ */
+ static void
+store_var(char_u *name, typval_T *tv)
+{
+ funccal_entry_T entry;
+ int flags = ASSIGN_DECL;
+
+ if (tv->v_lock)
+ flags |= ASSIGN_CONST;
+ save_funccal(&entry);
+ set_var_const(name, 0, NULL, tv, FALSE, flags, 0);
+ restore_funccal();
+}
+
+/*
+ * Convert "tv" to a string.
+ * Return FAIL if not allowed.
+ */
+ static int
+do_2string(typval_T *tv, int is_2string_any, int tolerant)
+{
+ if (tv->v_type == VAR_STRING)
+ return OK;
+
+ char_u *str;
+
+ if (is_2string_any)
+ {
+ switch (tv->v_type)
+ {
+ case VAR_SPECIAL:
+ case VAR_BOOL:
+ case VAR_NUMBER:
+ case VAR_FLOAT:
+ case VAR_BLOB: break;
+
+ case VAR_LIST:
+ if (tolerant)
+ {
+ char_u *s, *e, *p;
+ garray_T ga;
+
+ ga_init2(&ga, sizeof(char_u *), 1);
+
+ // Convert to NL separated items, then
+ // escape the items and replace the NL with
+ // a space.
+ str = typval2string(tv, TRUE);
+ if (str == NULL)
+ return FAIL;
+ s = str;
+ while ((e = vim_strchr(s, '\n')) != NULL)
+ {
+ *e = NUL;
+ p = vim_strsave_fnameescape(s,
+ VSE_NONE);
+ if (p != NULL)
+ {
+ ga_concat(&ga, p);
+ ga_concat(&ga, (char_u *)" ");
+ vim_free(p);
+ }
+ s = e + 1;
+ }
+ vim_free(str);
+ clear_tv(tv);
+ tv->v_type = VAR_STRING;
+ tv->vval.v_string = ga.ga_data;
+ return OK;
+ }
+ // FALLTHROUGH
+ default: to_string_error(tv->v_type);
+ return FAIL;
+ }
+ }
+ str = typval_tostring(tv, TRUE);
+ clear_tv(tv);
+ tv->v_type = VAR_STRING;
+ tv->vval.v_string = str;
+ return OK;
+}
+
+/*
+ * When the value of "sv" is a null list of dict, allocate it.
+ */
+ static void
+allocate_if_null(svar_T *sv)
+{
+ typval_T *tv = sv->sv_tv;
+
+ switch (tv->v_type)
+ {
+ case VAR_LIST:
+ if (tv->vval.v_list == NULL && sv->sv_type != &t_list_empty)
+ (void)rettv_list_alloc(tv);
+ break;
+ case VAR_DICT:
+ if (tv->vval.v_dict == NULL && sv->sv_type != &t_dict_empty)
+ (void)rettv_dict_alloc(tv);
+ break;
+ case VAR_BLOB:
+ if (tv->vval.v_blob == NULL && sv->sv_type != &t_blob_null)
+ (void)rettv_blob_alloc(tv);
+ break;
+ default:
+ break;
+ }
+}
+
+/*
+ * Return the character "str[index]" where "index" is the character index,
+ * including composing characters.
+ * If "index" is out of range NULL is returned.
+ */
+ char_u *
+char_from_string(char_u *str, varnumber_T index)
+{
+ size_t nbyte = 0;
+ varnumber_T nchar = index;
+ size_t slen;
+
+ if (str == NULL)
+ return NULL;
+ slen = STRLEN(str);
+
+ // Do the same as for a list: a negative index counts from the end.
+ // Optimization to check the first byte to be below 0x80 (and no composing
+ // character follows) makes this a lot faster.
+ if (index < 0)
+ {
+ int clen = 0;
+
+ for (nbyte = 0; nbyte < slen; ++clen)
+ {
+ if (str[nbyte] < 0x80 && str[nbyte + 1] < 0x80)
+ ++nbyte;
+ else if (enc_utf8)
+ nbyte += utfc_ptr2len(str + nbyte);
+ else
+ nbyte += mb_ptr2len(str + nbyte);
+ }
+ nchar = clen + index;
+ if (nchar < 0)
+ // unlike list: index out of range results in empty string
+ return NULL;
+ }
+
+ for (nbyte = 0; nchar > 0 && nbyte < slen; --nchar)
+ {
+ if (str[nbyte] < 0x80 && str[nbyte + 1] < 0x80)
+ ++nbyte;
+ else if (enc_utf8)
+ nbyte += utfc_ptr2len(str + nbyte);
+ else
+ nbyte += mb_ptr2len(str + nbyte);
+ }
+ if (nbyte >= slen)
+ return NULL;
+ return vim_strnsave(str + nbyte, mb_ptr2len(str + nbyte));
+}
+
+/*
+ * Get the byte index for character index "idx" in string "str" with length
+ * "str_len". Composing characters are included.
+ * If going over the end return "str_len".
+ * If "idx" is negative count from the end, -1 is the last character.
+ * When going over the start return -1.
+ */
+ static long
+char_idx2byte(char_u *str, size_t str_len, varnumber_T idx)
+{
+ varnumber_T nchar = idx;
+ size_t nbyte = 0;
+
+ if (nchar >= 0)
+ {
+ while (nchar > 0 && nbyte < str_len)
+ {
+ nbyte += mb_ptr2len(str + nbyte);
+ --nchar;
+ }
+ }
+ else
+ {
+ nbyte = str_len;
+ while (nchar < 0 && nbyte > 0)
+ {
+ --nbyte;
+ nbyte -= mb_head_off(str, str + nbyte);
+ ++nchar;
+ }
+ if (nchar < 0)
+ return -1;
+ }
+ return (long)nbyte;
+}
+
+/*
+ * Return the slice "str[first : last]" using character indexes. Composing
+ * characters are included.
+ * "exclusive" is TRUE for slice().
+ * Return NULL when the result is empty.
+ */
+ char_u *
+string_slice(char_u *str, varnumber_T first, varnumber_T last, int exclusive)
+{
+ long start_byte, end_byte;
+ size_t slen;
+
+ if (str == NULL)
+ return NULL;
+ slen = STRLEN(str);
+ start_byte = char_idx2byte(str, slen, first);
+ if (start_byte < 0)
+ start_byte = 0; // first index very negative: use zero
+ if ((last == -1 && !exclusive) || last == VARNUM_MAX)
+ end_byte = (long)slen;
+ else
+ {
+ end_byte = char_idx2byte(str, slen, last);
+ if (!exclusive && end_byte >= 0 && end_byte < (long)slen)
+ // end index is inclusive
+ end_byte += mb_ptr2len(str + end_byte);
+ }
+
+ if (start_byte >= (long)slen || end_byte <= start_byte)
+ return NULL;
+ return vim_strnsave(str + start_byte, end_byte - start_byte);
+}
+
+/*
+ * Get a script variable for ISN_STORESCRIPT and ISN_LOADSCRIPT.
+ * When "dfunc_idx" is negative don't give an error.
+ * Returns NULL for an error.
+ */
+ static svar_T *
+get_script_svar(scriptref_T *sref, int dfunc_idx)
+{
+ scriptitem_T *si = SCRIPT_ITEM(sref->sref_sid);
+ dfunc_T *dfunc = dfunc_idx < 0 ? NULL
+ : ((dfunc_T *)def_functions.ga_data) + dfunc_idx;
+ svar_T *sv;
+
+ if (sref->sref_seq != si->sn_script_seq)
+ {
+ // The script was reloaded after the function was compiled, the
+ // script_idx may not be valid.
+ if (dfunc != NULL)
+ semsg(_(e_script_variable_invalid_after_reload_in_function_str),
+ printable_func_name(dfunc->df_ufunc));
+ return NULL;
+ }
+ sv = ((svar_T *)si->sn_var_vals.ga_data) + sref->sref_idx;
+ if (sv->sv_name == NULL)
+ {
+ if (dfunc != NULL)
+ emsg(_(e_script_variable_was_deleted));
+ return NULL;
+ }
+ if (!equal_type(sv->sv_type, sref->sref_type, 0))
+ {
+ if (dfunc != NULL)
+ emsg(_(e_script_variable_type_changed));
+ return NULL;
+ }
+
+ if ((sv->sv_flags & SVFLAG_EXPORTED) == 0
+ && sref->sref_sid != current_sctx.sc_sid)
+ {
+ if (dfunc != NULL)
+ semsg(_(e_item_not_exported_in_script_str), sv->sv_name);
+ return NULL;
+ }
+ return sv;
+}
+
+/*
+ * Function passed to do_cmdline() for splitting a script joined by NL
+ * characters.
+ */
+ static char_u *
+get_split_sourceline(
+ int c UNUSED,
+ void *cookie,
+ int indent UNUSED,
+ getline_opt_T options UNUSED)
+{
+ source_cookie_T *sp = (source_cookie_T *)cookie;
+ char_u *p;
+ char_u *line;
+
+ p = vim_strchr(sp->nextline, '\n');
+ if (p == NULL)
+ {
+ line = vim_strsave(sp->nextline);
+ sp->nextline += STRLEN(sp->nextline);
+ }
+ else
+ {
+ line = vim_strnsave(sp->nextline, p - sp->nextline);
+ sp->nextline = p + 1;
+ }
+ return line;
+}
+
+/*
+ * Execute a function by "name".
+ * This can be a builtin function, user function or a funcref.
+ * "iptr" can be used to replace the instruction with a more efficient one.
+ */
+ static int
+call_eval_func(
+ char_u *name,
+ int argcount,
+ ectx_T *ectx,
+ isn_T *iptr)
+{
+ int called_emsg_before = called_emsg;
+ int res;
+
+ res = call_by_name(name, argcount, ectx, iptr, NULL);
+ if (res == FAIL && called_emsg == called_emsg_before)
+ {
+ dictitem_T *v;
+
+ v = find_var(name, NULL, FALSE);
+ if (v == NULL || (v->di_tv.v_type != VAR_PARTIAL
+ && v->di_tv.v_type != VAR_FUNC))
+ {
+ emsg_funcname(e_unknown_function_str, name);
+ return FAIL;
+ }
+ return call_partial(&v->di_tv, argcount, ectx);
+ }
+ return res;
+}
+
+/*
+ * When a function reference is used, fill a partial with the information
+ * needed, especially when it is used as a closure.
+ */
+ int
+fill_partial_and_closure(
+ partial_T *pt,
+ ufunc_T *ufunc,
+ loopvarinfo_T *lvi,
+ ectx_T *ectx)
+{
+ pt->pt_func = ufunc;
+ pt->pt_refcount = 1;
+
+ if (ufunc->uf_flags & FC_CLOSURE)
+ {
+ dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data)
+ + ectx->ec_dfunc_idx;
+
+ // The closure may need to find arguments and local variables of the
+ // current function in the stack.
+ pt->pt_outer.out_stack = &ectx->ec_stack;
+ pt->pt_outer.out_frame_idx = ectx->ec_frame_idx;
+ if (ectx->ec_outer_ref != NULL)
+ {
+ // The current context already has a context, link to that one.
+ pt->pt_outer.out_up = ectx->ec_outer_ref->or_outer;
+ if (ectx->ec_outer_ref->or_partial != NULL)
+ {
+ pt->pt_outer.out_up_partial = ectx->ec_outer_ref->or_partial;
+ ++pt->pt_outer.out_up_partial->pt_refcount;
+ }
+ }
+
+ if (lvi != NULL)
+ {
+ int depth;
+
+ // The closure may need to find variables defined inside a loop,
+ // for every nested loop. A new reference is made every time,
+ // ISN_ENDLOOP will check if they are actually used.
+ for (depth = 0; depth < lvi->lvi_depth; ++depth)
+ {
+ pt->pt_outer.out_loop[depth].stack = &ectx->ec_stack;
+ pt->pt_outer.out_loop[depth].var_idx = ectx->ec_frame_idx
+ + STACK_FRAME_SIZE + lvi->lvi_loop[depth].var_idx;
+ pt->pt_outer.out_loop[depth].var_count =
+ lvi->lvi_loop[depth].var_count;
+ }
+ pt->pt_outer.out_loop_size = lvi->lvi_depth;
+ }
+ else
+ pt->pt_outer.out_loop_size = 0;
+
+ // If the function currently executing returns and the closure is still
+ // being referenced, we need to make a copy of the context (arguments
+ // and local variables) so that the closure can use it later.
+ // Store a reference to the partial so we can handle that.
+ if (GA_GROW_FAILS(&ectx->ec_funcrefs, 1))
+ {
+ vim_free(pt);
+ return FAIL;
+ }
+ // Extra variable keeps the count of closures created in the current
+ // function call.
+ ++(((typval_T *)ectx->ec_stack.ga_data) + ectx->ec_frame_idx
+ + STACK_FRAME_SIZE + dfunc->df_varcount)->vval.v_number;
+
+ ((partial_T **)ectx->ec_funcrefs.ga_data)[ectx->ec_funcrefs.ga_len]
+ = pt;
+ ++pt->pt_refcount;
+ ++ectx->ec_funcrefs.ga_len;
+ }
+ ++ufunc->uf_refcount;
+ return OK;
+}
+
+/*
+ * Execute iptr->isn_arg.string as an Ex command.
+ */
+ static int
+exec_command(isn_T *iptr, char_u *cmd_string)
+{
+ source_cookie_T cookie;
+
+ SOURCING_LNUM = iptr->isn_lnum;
+ // Pass getsourceline to get an error for a missing ":end" command.
+ CLEAR_FIELD(cookie);
+ cookie.sourcing_lnum = iptr->isn_lnum - 1;
+ if (do_cmdline(cmd_string, getsourceline, &cookie,
+ DOCMD_VERBOSE|DOCMD_NOWAIT|DOCMD_KEYTYPED) == FAIL
+ || did_emsg)
+ return FAIL;
+ return OK;
+}
+
+/*
+ * If script "sid" is not loaded yet then load it now.
+ * Caller must make sure "sid" is a valid script ID.
+ * "loaded" is set to TRUE if the script had to be loaded.
+ * Returns FAIL if loading fails, OK if already loaded or loaded now.
+ */
+ int
+may_load_script(int sid, int *loaded)
+{
+ scriptitem_T *si = SCRIPT_ITEM(sid);
+
+ if (si->sn_state == SN_STATE_NOT_LOADED)
+ {
+ *loaded = TRUE;
+ if (do_source(si->sn_name, FALSE, DOSO_NONE, NULL) == FAIL)
+ {
+ semsg(_(e_cant_open_file_str), si->sn_name);
+ return FAIL;
+ }
+ }
+ return OK;
+}
+
+// used for v_instr of typval of VAR_INSTR
+struct instr_S {
+ ectx_T *instr_ectx;
+ isn_T *instr_instr;
+};
+
+// used for substitute_instr
+typedef struct subs_expr_S {
+ ectx_T *subs_ectx;
+ isn_T *subs_instr;
+ int subs_status;
+} subs_expr_T;
+
+// Set when calling do_debug().
+static ectx_T *debug_context = NULL;
+static int debug_var_count;
+
+/*
+ * When debugging lookup "name" and return the typeval.
+ * When not found return NULL.
+ */
+ typval_T *
+lookup_debug_var(char_u *name)
+{
+ int idx;
+ dfunc_T *dfunc;
+ ufunc_T *ufunc;
+ ectx_T *ectx = debug_context;
+ int varargs_off;
+
+ if (ectx == NULL)
+ return NULL;
+ dfunc = ((dfunc_T *)def_functions.ga_data) + ectx->ec_dfunc_idx;
+
+ // Go through the local variable names, from last to first.
+ for (idx = debug_var_count - 1; idx >= 0; --idx)
+ {
+ char_u *varname = ((char_u **)dfunc->df_var_names.ga_data)[idx];
+
+ // the variable name may be NULL when not available in this block
+ if (varname != NULL && STRCMP(varname, name) == 0)
+ return STACK_TV_VAR(idx);
+ }
+
+ // Go through argument names.
+ ufunc = dfunc->df_ufunc;
+ varargs_off = ufunc->uf_va_name == NULL ? 0 : 1;
+ for (idx = 0; idx < ufunc->uf_args.ga_len; ++idx)
+ if (STRCMP(((char_u **)(ufunc->uf_args.ga_data))[idx], name) == 0)
+ return STACK_TV(ectx->ec_frame_idx - ufunc->uf_args.ga_len
+ - varargs_off + idx);
+ if (ufunc->uf_va_name != NULL && STRCMP(ufunc->uf_va_name, name) == 0)
+ return STACK_TV(ectx->ec_frame_idx - 1);
+
+ return NULL;
+}
+
+/*
+ * Return TRUE if there might be a breakpoint in "ufunc", which is when a
+ * breakpoint was set in that function or when there is any expression.
+ */
+ int
+may_break_in_function(ufunc_T *ufunc)
+{
+ return ufunc->uf_has_breakpoint || debug_has_expr_breakpoint();
+}
+
+ static void
+handle_debug(isn_T *iptr, ectx_T *ectx)
+{
+ char_u *line;
+ ufunc_T *ufunc = (((dfunc_T *)def_functions.ga_data)
+ + ectx->ec_dfunc_idx)->df_ufunc;
+ isn_T *ni;
+ int end_lnum = iptr->isn_lnum;
+ garray_T ga;
+ int lnum;
+
+ if (ex_nesting_level > debug_break_level)
+ {
+ linenr_T breakpoint;
+
+ if (!may_break_in_function(ufunc))
+ return;
+
+ // check for the next breakpoint if needed
+ breakpoint = dbg_find_breakpoint(FALSE, ufunc->uf_name,
+ iptr->isn_arg.debug.dbg_break_lnum);
+ if (breakpoint <= 0 || breakpoint > iptr->isn_lnum)
+ return;
+ }
+
+ SOURCING_LNUM = iptr->isn_lnum;
+ debug_context = ectx;
+ debug_var_count = iptr->isn_arg.debug.dbg_var_names_len;
+
+ for (ni = iptr + 1; ni->isn_type != ISN_FINISH; ++ni)
+ if (ni->isn_type == ISN_DEBUG
+ || ni->isn_type == ISN_RETURN
+ || ni->isn_type == ISN_RETURN_OBJECT
+ || ni->isn_type == ISN_RETURN_VOID)
+ {
+ end_lnum = ni->isn_lnum + (ni->isn_type == ISN_DEBUG ? 0 : 1);
+ break;
+ }
+
+ if (end_lnum > iptr->isn_lnum)
+ {
+ ga_init2(&ga, sizeof(char_u *), 10);
+ for (lnum = iptr->isn_lnum; lnum < end_lnum
+ && lnum <= ufunc->uf_lines.ga_len; ++lnum)
+ {
+ char_u *p = ((char_u **)ufunc->uf_lines.ga_data)[lnum - 1];
+
+ if (p == NULL)
+ continue; // left over from continuation line
+ p = skipwhite(p);
+ if (*p == '#')
+ break;
+ if (GA_GROW_OK(&ga, 1))
+ ((char_u **)(ga.ga_data))[ga.ga_len++] = p;
+ if (STRNCMP(p, "def ", 4) == 0)
+ break;
+ }
+ line = ga_concat_strings(&ga, " ");
+ vim_free(ga.ga_data);
+ }
+ else
+ line = ((char_u **)ufunc->uf_lines.ga_data)[iptr->isn_lnum - 1];
+
+ do_debug(line == NULL ? (char_u *)"[empty]" : line);
+ debug_context = NULL;
+
+ if (end_lnum > iptr->isn_lnum)
+ vim_free(line);
+}
+
+/*
+ * Store a value in a list, dict, blob or object variable.
+ * Returns OK, FAIL or NOTDONE (uncatchable error).
+ */
+ static int
+execute_storeindex(isn_T *iptr, ectx_T *ectx)
+{
+ vartype_T dest_type = iptr->isn_arg.storeindex.si_vartype;
+ typval_T *tv;
+ typval_T *tv_idx = STACK_TV_BOT(-2);
+ long lidx = 0;
+ typval_T *tv_dest = STACK_TV_BOT(-1);
+ int status = OK;
+
+ if (tv_idx->v_type == VAR_NUMBER)
+ lidx = (long)tv_idx->vval.v_number;
+
+ // Stack contains:
+ // -3 value to be stored
+ // -2 index
+ // -1 dict, list, blob, object or class
+ tv = STACK_TV_BOT(-3);
+ SOURCING_LNUM = iptr->isn_lnum;
+
+ // Make sure an object has been initialized
+ if (dest_type == VAR_OBJECT && tv_dest->vval.v_object == NULL)
+ {
+ emsg(_(e_using_null_object));
+ status = FAIL;
+ }
+ else if (dest_type == VAR_ANY)
+ {
+ dest_type = tv_dest->v_type;
+ if (dest_type == VAR_DICT)
+ status = do_2string(tv_idx, TRUE, FALSE);
+ else if (dest_type == VAR_OBJECT && tv_idx->v_type == VAR_STRING)
+ {
+ // Need to get the member index now that the class is known.
+ object_T *obj = tv_dest->vval.v_object;
+ class_T *cl = obj->obj_class;
+ char_u *member = tv_idx->vval.v_string;
+
+ int m_idx;
+ ocmember_T *m = object_member_lookup(cl, member, 0, &m_idx);
+ if (m != NULL)
+ {
+ if (*member == '_')
+ {
+ emsg_var_cl_define(e_cannot_access_protected_variable_str,
+ m->ocm_name, 0, cl);
+ status = FAIL;
+ }
+
+ lidx = m_idx;
+ }
+ else
+ {
+ member_not_found_msg(cl, VAR_OBJECT, member, 0);
+ status = FAIL;
+ }
+ }
+ else if ((dest_type == VAR_LIST || dest_type == VAR_OBJECT)
+ && tv_idx->v_type != VAR_NUMBER)
+ {
+ emsg(_(e_number_expected));
+ status = FAIL;
+ }
+ }
+
+ if (status == OK)
+ {
+ if (dest_type == VAR_LIST)
+ {
+ list_T *list = tv_dest->vval.v_list;
+
+ if (list == NULL)
+ {
+ emsg(_(e_list_not_set));
+ return FAIL;
+ }
+ if (lidx < 0 && list->lv_len + lidx >= 0)
+ // negative index is relative to the end
+ lidx = list->lv_len + lidx;
+ if (lidx < 0 || lidx > list->lv_len)
+ {
+ semsg(_(e_list_index_out_of_range_nr), lidx);
+ return FAIL;
+ }
+ if (lidx < list->lv_len)
+ {
+ listitem_T *li = list_find(list, lidx);
+
+ if (error_if_locked(li->li_tv.v_lock,
+ e_cannot_change_locked_list_item))
+ return FAIL;
+ // overwrite existing list item
+ clear_tv(&li->li_tv);
+ li->li_tv = *tv;
+ }
+ else
+ {
+ if (error_if_locked(list->lv_lock, e_cannot_change_locked_list))
+ return FAIL;
+ // append to list, only fails when out of memory
+ if (list_append_tv(list, tv) == FAIL)
+ return NOTDONE;
+ clear_tv(tv);
+ }
+ }
+ else if (dest_type == VAR_DICT)
+ {
+ char_u *key = tv_idx->vval.v_string;
+ dict_T *dict = tv_dest->vval.v_dict;
+ dictitem_T *di;
+
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (dict == NULL)
+ {
+ emsg(_(e_dictionary_not_set));
+ return FAIL;
+ }
+ if (key == NULL)
+ key = (char_u *)"";
+ di = dict_find(dict, key, -1);
+ if (di != NULL)
+ {
+ if (error_if_locked(di->di_tv.v_lock,
+ e_cannot_change_dict_item))
+ return FAIL;
+ // overwrite existing value
+ clear_tv(&di->di_tv);
+ di->di_tv = *tv;
+ }
+ else
+ {
+ if (error_if_locked(dict->dv_lock, e_cannot_change_dict))
+ return FAIL;
+ // add to dict, only fails when out of memory
+ if (dict_add_tv(dict, (char *)key, tv) == FAIL)
+ return NOTDONE;
+ clear_tv(tv);
+ }
+ }
+ else if (dest_type == VAR_BLOB)
+ {
+ blob_T *blob = tv_dest->vval.v_blob;
+ varnumber_T nr;
+ int error = FALSE;
+ int len;
+
+ if (blob == NULL)
+ {
+ emsg(_(e_blob_not_set));
+ return FAIL;
+ }
+ len = blob_len(blob);
+ if (lidx < 0 && len + lidx >= 0)
+ // negative index is relative to the end
+ lidx = len + lidx;
+
+ // Can add one byte at the end.
+ if (lidx < 0 || lidx > len)
+ {
+ semsg(_(e_blob_index_out_of_range_nr), lidx);
+ return FAIL;
+ }
+ if (value_check_lock(blob->bv_lock, (char_u *)"blob", FALSE))
+ return FAIL;
+ nr = tv_get_number_chk(tv, &error);
+ if (error)
+ return FAIL;
+ blob_set_append(blob, lidx, nr);
+ }
+ else if (dest_type == VAR_CLASS || dest_type == VAR_OBJECT)
+ {
+ typval_T *otv;
+
+ if (dest_type == VAR_OBJECT)
+ {
+ object_T *obj = tv_dest->vval.v_object;
+
+ otv = (typval_T *)(obj + 1);
+ class_T *itf = iptr->isn_arg.storeindex.si_class;
+ if (itf != NULL)
+ // convert interface member index to class member index
+ lidx = object_index_from_itf_index(itf, FALSE, lidx,
+ obj->obj_class);
+ }
+ else
+ {
+ // VAR_CLASS
+ class_T *class = tv_dest->vval.v_class;
+ otv = class->class_members_tv;
+ }
+
+ clear_tv(&otv[lidx]);
+ otv[lidx] = *tv;
+ }
+ else
+ {
+ status = FAIL;
+ semsg(_(e_cannot_index_str), vartype_name(dest_type));
+ }
+ }
+
+ clear_tv(tv_idx);
+ clear_tv(tv_dest);
+ ectx->ec_stack.ga_len -= 3;
+ if (status == FAIL)
+ {
+ clear_tv(tv);
+ return FAIL;
+ }
+ return OK;
+}
+
+/*
+ * Store a value in a list or blob range.
+ */
+ static int
+execute_storerange(isn_T *iptr, ectx_T *ectx)
+{
+ typval_T *tv;
+ typval_T *tv_idx1 = STACK_TV_BOT(-3);
+ typval_T *tv_idx2 = STACK_TV_BOT(-2);
+ typval_T *tv_dest = STACK_TV_BOT(-1);
+ int status = OK;
+
+ // Stack contains:
+ // -4 value to be stored
+ // -3 first index or "none"
+ // -2 second index or "none"
+ // -1 destination list or blob
+ tv = STACK_TV_BOT(-4);
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (tv_dest->v_type == VAR_LIST)
+ {
+ long n1;
+ long n2;
+ listitem_T *li1;
+
+ n1 = (long)tv_get_number_chk(tv_idx1, NULL);
+ if (tv_idx2->v_type == VAR_SPECIAL
+ && tv_idx2->vval.v_number == VVAL_NONE)
+ n2 = list_len(tv_dest->vval.v_list) - 1;
+ else
+ n2 = (long)tv_get_number_chk(tv_idx2, NULL);
+
+ li1 = check_range_index_one(tv_dest->vval.v_list, &n1, TRUE, FALSE);
+ if (li1 == NULL)
+ status = FAIL;
+ else
+ {
+ status = check_range_index_two(tv_dest->vval.v_list,
+ &n1, li1, &n2, FALSE);
+ if (status != FAIL)
+ status = list_assign_range(
+ tv_dest->vval.v_list,
+ tv->vval.v_list,
+ n1,
+ n2,
+ tv_idx2->v_type == VAR_SPECIAL,
+ (char_u *)"=",
+ (char_u *)"[unknown]");
+ }
+ }
+ else if (tv_dest->v_type == VAR_BLOB)
+ {
+ varnumber_T n1;
+ varnumber_T n2;
+ long bloblen;
+
+ n1 = tv_get_number_chk(tv_idx1, NULL);
+ if (tv_idx2->v_type == VAR_SPECIAL
+ && tv_idx2->vval.v_number == VVAL_NONE)
+ n2 = blob_len(tv_dest->vval.v_blob) - 1;
+ else
+ n2 = tv_get_number_chk(tv_idx2, NULL);
+ bloblen = blob_len(tv_dest->vval.v_blob);
+
+ if (check_blob_index(bloblen, n1, FALSE) == FAIL
+ || check_blob_range(bloblen, n1, n2, FALSE) == FAIL)
+ status = FAIL;
+ else
+ status = blob_set_range(tv_dest->vval.v_blob, n1, n2, tv);
+ }
+ else
+ {
+ status = FAIL;
+ emsg(_(e_list_or_blob_required));
+ }
+
+ clear_tv(tv_idx1);
+ clear_tv(tv_idx2);
+ clear_tv(tv_dest);
+ ectx->ec_stack.ga_len -= 4;
+ clear_tv(tv);
+
+ return status;
+}
+
+/*
+ * Unlet item in list or dict variable.
+ */
+ static int
+execute_unletindex(isn_T *iptr, ectx_T *ectx)
+{
+ typval_T *tv_idx = STACK_TV_BOT(-2);
+ typval_T *tv_dest = STACK_TV_BOT(-1);
+ int status = OK;
+
+ // Stack contains:
+ // -2 index
+ // -1 dict or list
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (tv_dest->v_type == VAR_DICT)
+ {
+ // unlet a dict item, index must be a string
+ if (tv_idx->v_type != VAR_STRING && tv_idx->v_type != VAR_NUMBER)
+ {
+ semsg(_(e_expected_str_but_got_str),
+ vartype_name(VAR_STRING),
+ vartype_name(tv_idx->v_type));
+ status = FAIL;
+ }
+ else
+ {
+ dict_T *d = tv_dest->vval.v_dict;
+ char_u *key;
+ dictitem_T *di = NULL;
+
+ if (d != NULL && value_check_lock(
+ d->dv_lock, NULL, FALSE))
+ status = FAIL;
+ else
+ {
+ if (tv_idx->v_type == VAR_STRING)
+ {
+ key = tv_idx->vval.v_string;
+ if (key == NULL)
+ key = (char_u *)"";
+ }
+ else
+ {
+ key = tv_get_string(tv_idx);
+ }
+ if (d != NULL)
+ di = dict_find(d, key, (int)STRLEN(key));
+ if (di == NULL)
+ {
+ // NULL dict is equivalent to empty dict
+ semsg(_(e_key_not_present_in_dictionary_str), key);
+ status = FAIL;
+ }
+ else if (var_check_fixed(di->di_flags,
+ NULL, FALSE)
+ || var_check_ro(di->di_flags,
+ NULL, FALSE))
+ status = FAIL;
+ else
+ dictitem_remove(d, di, "unlet");
+ }
+ }
+ }
+ else if (tv_dest->v_type == VAR_LIST)
+ {
+ // unlet a List item, index must be a number
+ if (check_for_number(tv_idx) == FAIL)
+ {
+ status = FAIL;
+ }
+ else
+ {
+ list_T *l = tv_dest->vval.v_list;
+ long n = (long)tv_idx->vval.v_number;
+
+ if (l != NULL && value_check_lock(
+ l->lv_lock, NULL, FALSE))
+ status = FAIL;
+ else
+ {
+ listitem_T *li = list_find(l, n);
+
+ if (li == NULL)
+ {
+ semsg(_(e_list_index_out_of_range_nr), n);
+ status = FAIL;
+ }
+ else
+ listitem_remove(l, li);
+ }
+ }
+ }
+ else
+ {
+ status = FAIL;
+ semsg(_(e_cannot_index_str),
+ vartype_name(tv_dest->v_type));
+ }
+
+ clear_tv(tv_idx);
+ clear_tv(tv_dest);
+ ectx->ec_stack.ga_len -= 2;
+
+ return status;
+}
+
+/*
+ * Unlet a range of items in a list variable.
+ */
+ static int
+execute_unletrange(isn_T *iptr, ectx_T *ectx)
+{
+ // Stack contains:
+ // -3 index1
+ // -2 index2
+ // -1 dict or list
+ typval_T *tv_idx1 = STACK_TV_BOT(-3);
+ typval_T *tv_idx2 = STACK_TV_BOT(-2);
+ typval_T *tv_dest = STACK_TV_BOT(-1);
+ int status = OK;
+
+ if (tv_dest->v_type == VAR_LIST)
+ {
+ // indexes must be a number
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (check_for_number(tv_idx1) == FAIL
+ || (tv_idx2->v_type != VAR_SPECIAL
+ && check_for_number(tv_idx2) == FAIL))
+ {
+ status = FAIL;
+ }
+ else
+ {
+ list_T *l = tv_dest->vval.v_list;
+ long n1 = (long)tv_idx1->vval.v_number;
+ long n2 = tv_idx2->v_type == VAR_SPECIAL
+ ? 0 : (long)tv_idx2->vval.v_number;
+ listitem_T *li;
+
+ li = list_find_index(l, &n1);
+ if (li == NULL)
+ {
+ semsg(_(e_list_index_out_of_range_nr),
+ (long)tv_idx1->vval.v_number);
+ status = FAIL;
+ }
+ else
+ {
+ if (n1 < 0)
+ n1 = list_idx_of_item(l, li);
+ if (n2 < 0)
+ {
+ listitem_T *li2 = list_find(l, n2);
+
+ if (li2 == NULL)
+ {
+ semsg(_(e_list_index_out_of_range_nr), n2);
+ status = FAIL;
+ }
+ else
+ n2 = list_idx_of_item(l, li2);
+ }
+ if (status != FAIL
+ && tv_idx2->v_type != VAR_SPECIAL
+ && n2 < n1)
+ {
+ semsg(_(e_list_index_out_of_range_nr), n2);
+ status = FAIL;
+ }
+ if (status != FAIL)
+ list_unlet_range(l, li, n1,
+ tv_idx2->v_type != VAR_SPECIAL, n2);
+ }
+ }
+ }
+ else
+ {
+ status = FAIL;
+ SOURCING_LNUM = iptr->isn_lnum;
+ semsg(_(e_cannot_index_str),
+ vartype_name(tv_dest->v_type));
+ }
+
+ clear_tv(tv_idx1);
+ clear_tv(tv_idx2);
+ clear_tv(tv_dest);
+ ectx->ec_stack.ga_len -= 3;
+
+ return status;
+}
+
+/*
+ * Top of a for loop.
+ */
+ static int
+execute_for(isn_T *iptr, ectx_T *ectx)
+{
+ typval_T *tv;
+ int jump = FALSE;
+ typval_T *ltv = STACK_TV_BOT(-1);
+ typval_T *idxtv =
+ STACK_TV_VAR(iptr->isn_arg.forloop.for_loop_idx);
+
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ return FAIL;
+ if (ltv->v_type == VAR_LIST)
+ {
+ list_T *list = ltv->vval.v_list;
+
+ // push the next item from the list
+ ++idxtv->vval.v_number;
+ if (list == NULL
+ || idxtv->vval.v_number >= list->lv_len)
+ {
+ jump = TRUE;
+ }
+ else if (list->lv_first == &range_list_item)
+ {
+ // non-materialized range() list
+ tv = STACK_TV_BOT(0);
+ tv->v_type = VAR_NUMBER;
+ tv->v_lock = 0;
+ tv->vval.v_number = list_find_nr(
+ list, idxtv->vval.v_number, NULL);
+ ++ectx->ec_stack.ga_len;
+ }
+ else
+ {
+ listitem_T *li = list_find(list,
+ idxtv->vval.v_number);
+
+ copy_tv(&li->li_tv, STACK_TV_BOT(0));
+ ++ectx->ec_stack.ga_len;
+ }
+ }
+ else if (ltv->v_type == VAR_STRING)
+ {
+ char_u *str = ltv->vval.v_string;
+
+ // The index is for the last byte of the previous
+ // character.
+ ++idxtv->vval.v_number;
+ if (str == NULL || str[idxtv->vval.v_number] == NUL)
+ {
+ jump = TRUE;
+ }
+ else
+ {
+ int clen = mb_ptr2len(str + idxtv->vval.v_number);
+
+ // Push the next character from the string.
+ tv = STACK_TV_BOT(0);
+ tv->v_type = VAR_STRING;
+ tv->vval.v_string = vim_strnsave(
+ str + idxtv->vval.v_number, clen);
+ ++ectx->ec_stack.ga_len;
+ idxtv->vval.v_number += clen - 1;
+ }
+ }
+ else if (ltv->v_type == VAR_BLOB)
+ {
+ blob_T *blob = ltv->vval.v_blob;
+
+ // When we get here the first time make a copy of the
+ // blob, so that the iteration still works when it is
+ // changed.
+ if (idxtv->vval.v_number == -1 && blob != NULL)
+ {
+ blob_copy(blob, ltv);
+ blob_unref(blob);
+ blob = ltv->vval.v_blob;
+ }
+
+ // The index is for the previous byte.
+ ++idxtv->vval.v_number;
+ if (blob == NULL || idxtv->vval.v_number >= blob_len(blob))
+ {
+ jump = TRUE;
+ }
+ else
+ {
+ // Push the next byte from the blob.
+ tv = STACK_TV_BOT(0);
+ tv->v_type = VAR_NUMBER;
+ tv->vval.v_number = blob_get(blob,
+ idxtv->vval.v_number);
+ ++ectx->ec_stack.ga_len;
+ }
+ }
+ else
+ {
+ semsg(_(e_for_loop_on_str_not_supported),
+ vartype_name(ltv->v_type));
+ return FAIL;
+ }
+
+ if (jump)
+ {
+ // past the end of the list/string/blob, jump to "endfor"
+ ectx->ec_iidx = iptr->isn_arg.forloop.for_end;
+ may_restore_cmdmod(&ectx->ec_funclocal);
+ }
+ else
+ {
+ // Store the current number of funcrefs, this may be used in
+ // ISN_LOOPEND. The variable index is always one more than the loop
+ // variable index.
+ tv = STACK_TV_VAR(iptr->isn_arg.forloop.for_loop_idx + 1);
+ tv->vval.v_number = ectx->ec_funcrefs.ga_len;
+ }
+
+ return OK;
+}
+
+/*
+ * Code for handling variables declared inside a loop and used in a closure.
+ * This is very similar to what is done with funcstack_T. The difference is
+ * that the funcstack_T has the scope of a function, while a loopvars_T has the
+ * scope of the block inside a loop and each loop may have its own.
+ */
+
+// Double linked list of loopvars_T in use.
+static loopvars_T *first_loopvars = NULL;
+
+ static void
+add_loopvars_to_list(loopvars_T *loopvars)
+{
+ // Link in list of loopvarss.
+ if (first_loopvars != NULL)
+ first_loopvars->lvs_prev = loopvars;
+ loopvars->lvs_next = first_loopvars;
+ loopvars->lvs_prev = NULL;
+ first_loopvars = loopvars;
+}
+
+ static void
+remove_loopvars_from_list(loopvars_T *loopvars)
+{
+ if (loopvars->lvs_prev == NULL)
+ first_loopvars = loopvars->lvs_next;
+ else
+ loopvars->lvs_prev->lvs_next = loopvars->lvs_next;
+ if (loopvars->lvs_next != NULL)
+ loopvars->lvs_next->lvs_prev = loopvars->lvs_prev;
+}
+
+/*
+ * End of a for or while loop: Handle any variables used by a closure.
+ */
+ static int
+execute_endloop(isn_T *iptr, ectx_T *ectx)
+{
+ endloop_T *endloop = &iptr->isn_arg.endloop;
+ typval_T *tv_refcount = STACK_TV_VAR(endloop->end_funcref_idx);
+ int prev_closure_count = tv_refcount->vval.v_number;
+ int depth = endloop->end_depth;
+ garray_T *gap = &ectx->ec_funcrefs;
+ int closure_in_use = FALSE;
+ loopvars_T *loopvars;
+ typval_T *stack;
+ int idx;
+
+ // Check if any created closure is still being referenced and loopvars have
+ // not been saved yet for the current depth.
+ for (idx = prev_closure_count; idx < gap->ga_len; ++idx)
+ {
+ partial_T *pt = ((partial_T **)gap->ga_data)[idx];
+
+ if (pt->pt_refcount > 1 && pt->pt_loopvars[depth] == NULL)
+ {
+ int refcount = pt->pt_refcount;
+ int i;
+
+ // A Reference in a variable inside the loop doesn't count, it gets
+ // unreferenced at the end of the loop.
+ for (i = 0; i < endloop->end_var_count; ++i)
+ {
+ typval_T *stv = STACK_TV_VAR(endloop->end_var_idx + i);
+
+ if (stv->v_type == VAR_PARTIAL && pt == stv->vval.v_partial)
+ --refcount;
+ }
+ if (refcount > 1)
+ {
+ closure_in_use = TRUE;
+ break;
+ }
+ }
+ }
+
+ // If no function reference were created since the start of the loop block
+ // or it is no longer referenced there is nothing to do.
+ if (!closure_in_use)
+ return OK;
+
+ // A closure is using variables declared inside the loop.
+ // Move them to the called function.
+ loopvars = ALLOC_CLEAR_ONE(loopvars_T);
+ if (loopvars == NULL)
+ return FAIL;
+
+ loopvars->lvs_ga.ga_len = endloop->end_var_count;
+ stack = ALLOC_CLEAR_MULT(typval_T, loopvars->lvs_ga.ga_len);
+ loopvars->lvs_ga.ga_data = stack;
+ if (stack == NULL)
+ {
+ vim_free(loopvars);
+ return FAIL;
+ }
+ add_loopvars_to_list(loopvars);
+
+ // Move the variable values.
+ for (idx = 0; idx < endloop->end_var_count; ++idx)
+ {
+ typval_T *tv = STACK_TV_VAR(endloop->end_var_idx + idx);
+
+ *(stack + idx) = *tv;
+ tv->v_type = VAR_UNKNOWN;
+ }
+
+ for (idx = prev_closure_count; idx < gap->ga_len; ++idx)
+ {
+ partial_T *pt = ((partial_T **)gap->ga_data)[idx];
+
+ if (pt->pt_refcount > 1 && pt->pt_loopvars[depth] == NULL)
+ {
+ ++loopvars->lvs_refcount;
+ pt->pt_loopvars[depth] = loopvars;
+
+ pt->pt_outer.out_loop[depth].stack = &loopvars->lvs_ga;
+ pt->pt_outer.out_loop[depth].var_idx -=
+ ectx->ec_frame_idx + STACK_FRAME_SIZE + endloop->end_var_idx;
+ }
+ }
+
+ return OK;
+}
+
+/*
+ * Called when a partial is freed or its reference count goes down to one. The
+ * loopvars may be the only reference to the partials in the local variables.
+ * Go over all of them, the funcref and can be freed if all partials
+ * referencing the loopvars have a reference count of one.
+ * Return TRUE if it was freed.
+ */
+ int
+loopvars_check_refcount(loopvars_T *loopvars)
+{
+ int i;
+ garray_T *gap = &loopvars->lvs_ga;
+ int done = 0;
+ typval_T *stack = gap->ga_data;
+
+ if (loopvars->lvs_refcount > loopvars->lvs_min_refcount)
+ return FALSE;
+ for (i = 0; i < gap->ga_len; ++i)
+ {
+ typval_T *tv = ((typval_T *)gap->ga_data) + i;
+
+ if (tv->v_type == VAR_PARTIAL && tv->vval.v_partial != NULL
+ && tv->vval.v_partial->pt_refcount == 1)
+ {
+ int depth;
+
+ for (depth = 0; depth < MAX_LOOP_DEPTH; ++depth)
+ if (tv->vval.v_partial->pt_loopvars[depth] == loopvars)
+ ++done;
+ }
+ }
+ if (done != loopvars->lvs_min_refcount)
+ return FALSE;
+
+ // All partials referencing the loopvars have a reference count of
+ // one, thus the loopvars is no longer of use.
+ stack = gap->ga_data;
+ for (i = 0; i < gap->ga_len; ++i)
+ clear_tv(stack + i);
+ vim_free(stack);
+ remove_loopvars_from_list(loopvars);
+ vim_free(loopvars);
+ return TRUE;
+}
+
+/*
+ * For garbage collecting: set references in all variables referenced by
+ * all loopvars.
+ */
+ int
+set_ref_in_loopvars(int copyID)
+{
+ loopvars_T *loopvars;
+
+ for (loopvars = first_loopvars; loopvars != NULL;
+ loopvars = loopvars->lvs_next)
+ {
+ typval_T *stack = loopvars->lvs_ga.ga_data;
+ int i;
+
+ for (i = 0; i < loopvars->lvs_ga.ga_len; ++i)
+ if (set_ref_in_item(stack + i, copyID, NULL, NULL))
+ return TRUE; // abort
+ }
+ return FALSE;
+}
+
+/*
+ * Load instruction for w:/b:/g:/t: variable.
+ * "isn_type" is used instead of "iptr->isn_type".
+ */
+ static int
+load_namespace_var(ectx_T *ectx, isntype_T isn_type, isn_T *iptr)
+{
+ dictitem_T *di = NULL;
+ hashtab_T *ht = NULL;
+ char namespace;
+
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ return NOTDONE;
+ switch (isn_type)
+ {
+ case ISN_LOADG:
+ ht = get_globvar_ht();
+ namespace = 'g';
+ break;
+ case ISN_LOADB:
+ ht = &curbuf->b_vars->dv_hashtab;
+ namespace = 'b';
+ break;
+ case ISN_LOADW:
+ ht = &curwin->w_vars->dv_hashtab;
+ namespace = 'w';
+ break;
+ case ISN_LOADT:
+ ht = &curtab->tp_vars->dv_hashtab;
+ namespace = 't';
+ break;
+ default: // Cannot reach here
+ return NOTDONE;
+ }
+ di = find_var_in_ht(ht, 0, iptr->isn_arg.string, TRUE);
+
+ if (di == NULL)
+ {
+ if (isn_type == ISN_LOADG)
+ {
+ ufunc_T *ufunc = find_func(iptr->isn_arg.string, TRUE);
+
+ // g:Something could be a function
+ if (ufunc != NULL)
+ {
+ typval_T *tv = STACK_TV_BOT(0);
+
+ ++ectx->ec_stack.ga_len;
+ tv->v_type = VAR_FUNC;
+ tv->vval.v_string = alloc(STRLEN(iptr->isn_arg.string) + 3);
+ if (tv->vval.v_string == NULL)
+ return FAIL;
+ STRCPY(tv->vval.v_string, "g:");
+ STRCPY(tv->vval.v_string + 2, iptr->isn_arg.string);
+ return OK;
+ }
+ }
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (vim_strchr(iptr->isn_arg.string, AUTOLOAD_CHAR) != NULL)
+ // no check if the item exists in the script but
+ // isn't exported, it is too complicated
+ semsg(_(e_item_not_found_in_script_str), iptr->isn_arg.string);
+ else
+ semsg(_(e_undefined_variable_char_str),
+ namespace, iptr->isn_arg.string);
+ return FAIL;
+ }
+ else
+ {
+ copy_tv(&di->di_tv, STACK_TV_BOT(0));
+ ++ectx->ec_stack.ga_len;
+ }
+ return OK;
+}
+
+
+ static void
+object_required_error(typval_T *tv)
+{
+ garray_T type_list;
+ ga_init2(&type_list, sizeof(type_T *), 10);
+ type_T *type = typval2type(tv, get_copyID(), &type_list, TVTT_DO_MEMBER);
+ char *tofree = NULL;
+ char *typename = type_name(type, &tofree);
+ semsg(_(e_object_required_found_str), typename);
+ vim_free(tofree);
+ clear_type_list(&type_list);
+}
+
+/*
+ * Execute instructions in execution context "ectx".
+ * Return OK or FAIL;
+ */
+ static int
+exec_instructions(ectx_T *ectx)
+{
+ int ret = FAIL;
+ int save_trylevel_at_start = ectx->ec_trylevel_at_start;
+ int dict_stack_len_at_start = dict_stack.ga_len;
+
+ // Start execution at the first instruction.
+ ectx->ec_iidx = 0;
+
+ // Only catch exceptions in this instruction list.
+ ectx->ec_trylevel_at_start = trylevel;
+
+ for (;;)
+ {
+ static int breakcheck_count = 0; // using "static" makes it faster
+ isn_T *iptr;
+ typval_T *tv;
+
+ if (unlikely(++breakcheck_count >= 100))
+ {
+ line_breakcheck();
+ breakcheck_count = 0;
+ }
+ if (unlikely(got_int))
+ {
+ // Turn CTRL-C into an exception.
+ got_int = FALSE;
+ if (throw_exception("Vim:Interrupt", ET_INTERRUPT, NULL) == FAIL)
+ goto theend;
+ did_throw = TRUE;
+ }
+
+ if (unlikely(did_emsg && msg_list != NULL && *msg_list != NULL))
+ {
+ // Turn an error message into an exception.
+ did_emsg = FALSE;
+ if (throw_exception(*msg_list, ET_ERROR, NULL) == FAIL)
+ goto theend;
+ did_throw = TRUE;
+ *msg_list = NULL;
+
+ // This exception was not caught (yet).
+ garray_T *trystack = &ectx->ec_trystack;
+ if (trystack->ga_len > 0)
+ {
+ trycmd_T *trycmd = ((trycmd_T *)trystack->ga_data)
+ + trystack->ga_len - 1;
+ if (trycmd->tcd_frame_idx == ectx->ec_frame_idx)
+ trycmd->tcd_caught = FALSE;
+ }
+ }
+
+ if (unlikely(did_throw))
+ {
+ garray_T *trystack = &ectx->ec_trystack;
+ trycmd_T *trycmd = NULL;
+ int index = trystack->ga_len;
+
+ // An exception jumps to the first catch, finally, or returns from
+ // the current function.
+ while (index > 0)
+ {
+ trycmd = ((trycmd_T *)trystack->ga_data) + index - 1;
+ // 1. after :try and before :catch - jump to first :catch
+ // 2. in :catch block - jump to :finally
+ // 3. in :catch block and no finally - jump to :endtry
+ if (!trycmd->tcd_in_catch || trycmd->tcd_finally_idx != 0
+ || trycmd->tcd_frame_idx == ectx->ec_frame_idx)
+ break;
+ // In the catch and finally block of this try we have to go up
+ // one level.
+ --index;
+ trycmd = NULL;
+ }
+ if (trycmd != NULL && trycmd->tcd_frame_idx == ectx->ec_frame_idx)
+ {
+ if (trycmd->tcd_in_catch)
+ {
+ if (trycmd->tcd_finally_idx > 0)
+ {
+ // exception inside ":catch", jump to ":finally" once
+ ectx->ec_iidx = trycmd->tcd_finally_idx;
+ trycmd->tcd_finally_idx = 0;
+ }
+ else
+ {
+ // exception inside ":catch" or ":finally", jump to
+ // ":endtry"
+ ectx->ec_iidx = trycmd->tcd_endtry_idx;
+ }
+ }
+ else
+ {
+ // jump to first ":catch"
+ ectx->ec_iidx = trycmd->tcd_catch_idx;
+ trycmd->tcd_in_catch = TRUE;
+ }
+ did_throw = FALSE; // don't come back here until :endtry
+ trycmd->tcd_did_throw = TRUE;
+ }
+ else
+ {
+ // Not inside try or need to return from current function.
+ // Push a dummy return value.
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ tv = STACK_TV_BOT(0);
+ tv->v_type = VAR_NUMBER;
+ tv->vval.v_number = 0;
+ ++ectx->ec_stack.ga_len;
+ if (ectx->ec_frame_idx == ectx->ec_initial_frame_idx)
+ {
+ // At the toplevel we are done.
+ need_rethrow = TRUE;
+ if (handle_closure_in_use(ectx, FALSE) == FAIL)
+ goto theend;
+ goto done;
+ }
+
+ if (func_return(ectx) == FAIL)
+ goto theend;
+ }
+ continue;
+ }
+
+ /*
+ * Big switch on the instruction. Most compilers will be turning this
+ * into an efficient lookup table, since the "case" values are an enum
+ * with sequential numbers. It may look ugly, but it should be the
+ * most efficient way.
+ */
+ iptr = &ectx->ec_instr[ectx->ec_iidx++];
+ switch (iptr->isn_type)
+ {
+ // Constructor, first instruction in a new() method.
+ case ISN_CONSTRUCT:
+ // "this" is always the local variable at index zero
+ tv = STACK_TV_VAR(0);
+ tv->v_type = VAR_OBJECT;
+ tv->vval.v_object = alloc_clear(
+ iptr->isn_arg.construct.construct_size);
+ tv->vval.v_object->obj_class =
+ iptr->isn_arg.construct.construct_class;
+ ++tv->vval.v_object->obj_class->class_refcount;
+ tv->vval.v_object->obj_refcount = 1;
+ object_created(tv->vval.v_object);
+ break;
+
+ // execute Ex command line
+ case ISN_EXEC:
+ if (exec_command(iptr, iptr->isn_arg.string) == FAIL)
+ goto on_error;
+ break;
+
+ // execute Ex command line split at NL characters.
+ case ISN_EXEC_SPLIT:
+ {
+ source_cookie_T cookie;
+ char_u *line;
+
+ SOURCING_LNUM = iptr->isn_lnum;
+ CLEAR_FIELD(cookie);
+ cookie.sourcing_lnum = iptr->isn_lnum - 1;
+ cookie.nextline = iptr->isn_arg.string;
+ line = get_split_sourceline(0, &cookie, 0, 0);
+ if (do_cmdline(line,
+ get_split_sourceline, &cookie,
+ DOCMD_VERBOSE|DOCMD_NOWAIT|DOCMD_KEYTYPED)
+ == FAIL
+ || did_emsg)
+ {
+ vim_free(line);
+ goto on_error;
+ }
+ vim_free(line);
+ }
+ break;
+
+ // execute Ex command line that is only a range
+ case ISN_EXECRANGE:
+ {
+ exarg_T ea;
+ char *error = NULL;
+
+ CLEAR_FIELD(ea);
+ ea.cmdidx = CMD_SIZE;
+ ea.addr_type = ADDR_LINES;
+ ea.cmd = iptr->isn_arg.string;
+ SOURCING_LNUM = iptr->isn_lnum;
+ parse_cmd_address(&ea, &error, FALSE);
+ if (ea.cmd == NULL)
+ goto on_error;
+ // error is always NULL when using ADDR_LINES
+ error = ex_range_without_command(&ea);
+ if (error != NULL)
+ {
+ emsg(error);
+ goto on_error;
+ }
+ }
+ break;
+
+ // Evaluate an expression with legacy syntax, push it onto the
+ // stack.
+ case ISN_LEGACY_EVAL:
+ {
+ char_u *arg = iptr->isn_arg.string;
+ int res;
+ int save_flags = cmdmod.cmod_flags;
+
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ tv = STACK_TV_BOT(0);
+ init_tv(tv);
+ cmdmod.cmod_flags |= CMOD_LEGACY;
+ res = eval0(arg, tv, NULL, &EVALARG_EVALUATE);
+ cmdmod.cmod_flags = save_flags;
+ if (res == FAIL)
+ goto on_error;
+ ++ectx->ec_stack.ga_len;
+ }
+ break;
+
+ // push typeval VAR_INSTR with instructions to be executed
+ case ISN_INSTR:
+ {
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ tv = STACK_TV_BOT(0);
+ tv->vval.v_instr = ALLOC_ONE(instr_T);
+ if (tv->vval.v_instr == NULL)
+ goto on_error;
+ ++ectx->ec_stack.ga_len;
+
+ tv->v_type = VAR_INSTR;
+ tv->vval.v_instr->instr_ectx = ectx;
+ tv->vval.v_instr->instr_instr = iptr->isn_arg.instr;
+ }
+ break;
+
+ case ISN_SOURCE:
+ {
+ int notused;
+
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (may_load_script((int)iptr->isn_arg.number, &notused)
+ == FAIL)
+ goto on_error;
+ }
+ break;
+
+ // execute :substitute with an expression
+ case ISN_SUBSTITUTE:
+ {
+ subs_T *subs = &iptr->isn_arg.subs;
+ source_cookie_T cookie;
+ struct subs_expr_S *save_instr = substitute_instr;
+ struct subs_expr_S subs_instr;
+ int res;
+
+ subs_instr.subs_ectx = ectx;
+ subs_instr.subs_instr = subs->subs_instr;
+ subs_instr.subs_status = OK;
+ substitute_instr = &subs_instr;
+
+ SOURCING_LNUM = iptr->isn_lnum;
+ // This is very much like ISN_EXEC
+ CLEAR_FIELD(cookie);
+ cookie.sourcing_lnum = iptr->isn_lnum - 1;
+ res = do_cmdline(subs->subs_cmd,
+ getsourceline, &cookie,
+ DOCMD_VERBOSE|DOCMD_NOWAIT|DOCMD_KEYTYPED);
+ substitute_instr = save_instr;
+
+ if (res == FAIL || did_emsg
+ || subs_instr.subs_status == FAIL)
+ goto on_error;
+ }
+ break;
+
+ case ISN_FINISH:
+ goto done;
+
+ case ISN_REDIRSTART:
+ // create a dummy entry for var_redir_str()
+ if (alloc_redir_lval() == FAIL)
+ goto on_error;
+
+ // The output is stored in growarray "redir_ga" until
+ // redirection ends.
+ init_redir_ga();
+ redir_vname = 1;
+ break;
+
+ case ISN_REDIREND:
+ {
+ char_u *res = get_clear_redir_ga();
+
+ // End redirection, put redirected text on the stack.
+ clear_redir_lval();
+ redir_vname = 0;
+
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ {
+ vim_free(res);
+ goto theend;
+ }
+ tv = STACK_TV_BOT(0);
+ tv->v_type = VAR_STRING;
+ tv->vval.v_string = res;
+ ++ectx->ec_stack.ga_len;
+ }
+ break;
+
+ case ISN_CEXPR_AUCMD:
+#ifdef FEAT_QUICKFIX
+ force_abort = TRUE;
+ if (trigger_cexpr_autocmd(iptr->isn_arg.number) == FAIL)
+ goto on_error;
+ force_abort = FALSE;
+#endif
+ break;
+
+ case ISN_CEXPR_CORE:
+#ifdef FEAT_QUICKFIX
+ {
+ exarg_T ea;
+ int res;
+
+ CLEAR_FIELD(ea);
+ ea.cmdidx = iptr->isn_arg.cexpr.cexpr_ref->cer_cmdidx;
+ ea.forceit = iptr->isn_arg.cexpr.cexpr_ref->cer_forceit;
+ ea.cmdlinep = &iptr->isn_arg.cexpr.cexpr_ref->cer_cmdline;
+ --ectx->ec_stack.ga_len;
+ tv = STACK_TV_BOT(0);
+ SOURCING_LNUM = iptr->isn_lnum;
+ res = cexpr_core(&ea, tv);
+ clear_tv(tv);
+ if (res == FAIL)
+ goto on_error;
+ }
+#endif
+ break;
+
+ // execute Ex command from pieces on the stack
+ case ISN_EXECCONCAT:
+ {
+ int count = iptr->isn_arg.number;
+ size_t len = 0;
+ int pass;
+ int i;
+ char_u *cmd = NULL;
+ char_u *str;
+
+ for (pass = 1; pass <= 2; ++pass)
+ {
+ for (i = 0; i < count; ++i)
+ {
+ tv = STACK_TV_BOT(i - count);
+ str = tv->vval.v_string;
+ if (str != NULL && *str != NUL)
+ {
+ if (pass == 2)
+ STRCPY(cmd + len, str);
+ len += STRLEN(str);
+ }
+ if (pass == 2)
+ clear_tv(tv);
+ }
+ if (pass == 1)
+ {
+ cmd = alloc(len + 1);
+ if (unlikely(cmd == NULL))
+ goto theend;
+ len = 0;
+ }
+ }
+
+ SOURCING_LNUM = iptr->isn_lnum;
+ do_cmdline_cmd(cmd);
+ vim_free(cmd);
+ }
+ break;
+
+ // execute :echo {string} ...
+ case ISN_ECHO:
+ {
+ int count = iptr->isn_arg.echo.echo_count;
+ int atstart = TRUE;
+ int needclr = TRUE;
+ int idx;
+
+ for (idx = 0; idx < count; ++idx)
+ {
+ tv = STACK_TV_BOT(idx - count);
+ echo_one(tv, iptr->isn_arg.echo.echo_with_white,
+ &atstart, &needclr);
+ clear_tv(tv);
+ }
+ if (needclr)
+ msg_clr_eos();
+ ectx->ec_stack.ga_len -= count;
+ }
+ break;
+
+ // :execute {string} ...
+ // :echomsg {string} ...
+ // :echowindow {string} ...
+ // :echoconsole {string} ...
+ // :echoerr {string} ...
+ case ISN_EXECUTE:
+ case ISN_ECHOMSG:
+ case ISN_ECHOWINDOW:
+ case ISN_ECHOCONSOLE:
+ case ISN_ECHOERR:
+ {
+ int count;
+ garray_T ga;
+ char_u buf[NUMBUFLEN];
+ char_u *p;
+ int len;
+ int failed = FALSE;
+ int idx;
+
+ if (iptr->isn_type == ISN_ECHOWINDOW)
+ count = iptr->isn_arg.echowin.ewin_count;
+ else
+ count = iptr->isn_arg.number;
+ ga_init2(&ga, 1, 80);
+ for (idx = 0; idx < count; ++idx)
+ {
+ tv = STACK_TV_BOT(idx - count);
+ if (iptr->isn_type == ISN_EXECUTE)
+ {
+ if (tv->v_type == VAR_CHANNEL
+ || tv->v_type == VAR_JOB)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ semsg(_(e_using_invalid_value_as_string_str),
+ vartype_name(tv->v_type));
+ break;
+ }
+ else
+ p = tv_get_string_buf(tv, buf);
+ }
+ else
+ p = tv_stringify(tv, buf);
+
+ len = (int)STRLEN(p);
+ if (GA_GROW_FAILS(&ga, len + 2))
+ failed = TRUE;
+ else
+ {
+ if (ga.ga_len > 0)
+ ((char_u *)(ga.ga_data))[ga.ga_len++] = ' ';
+ STRCPY((char_u *)(ga.ga_data) + ga.ga_len, p);
+ ga.ga_len += len;
+ }
+ clear_tv(tv);
+ }
+ ectx->ec_stack.ga_len -= count;
+ if (failed)
+ {
+ ga_clear(&ga);
+ goto on_error;
+ }
+
+ if (ga.ga_data != NULL)
+ {
+ if (iptr->isn_type == ISN_EXECUTE)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ do_cmdline_cmd((char_u *)ga.ga_data);
+ if (did_emsg)
+ {
+ ga_clear(&ga);
+ goto on_error;
+ }
+ }
+ else
+ {
+ msg_sb_eol();
+ if (iptr->isn_type == ISN_ECHOMSG)
+ {
+ msg_attr(ga.ga_data, echo_attr);
+ out_flush();
+ }
+#ifdef HAS_MESSAGE_WINDOW
+ else if (iptr->isn_type == ISN_ECHOWINDOW)
+ {
+ start_echowindow(
+ iptr->isn_arg.echowin.ewin_time);
+ msg_attr(ga.ga_data, echo_attr);
+ end_echowindow();
+ }
+#endif
+ else if (iptr->isn_type == ISN_ECHOCONSOLE)
+ {
+ ui_write(ga.ga_data, (int)STRLEN(ga.ga_data),
+ TRUE);
+ ui_write((char_u *)"\r\n", 2, TRUE);
+ }
+ else
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ emsg(ga.ga_data);
+ }
+ }
+ }
+ ga_clear(&ga);
+ }
+ break;
+
+ // load local variable or argument
+ case ISN_LOAD:
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ tv = STACK_TV_VAR(iptr->isn_arg.number);
+ if (tv->v_type == VAR_UNKNOWN)
+ {
+ // missing argument or default value v:none
+ STACK_TV_BOT(0)->v_type = VAR_SPECIAL;
+ STACK_TV_BOT(0)->vval.v_number = VVAL_NONE;
+ }
+ else
+ copy_tv(tv, STACK_TV_BOT(0));
+ ++ectx->ec_stack.ga_len;
+ break;
+
+ // load v: variable
+ case ISN_LOADV:
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ copy_tv(get_vim_var_tv(iptr->isn_arg.number), STACK_TV_BOT(0));
+ ++ectx->ec_stack.ga_len;
+ break;
+
+ // load s: variable in Vim9 script
+ case ISN_LOADSCRIPT:
+ {
+ scriptref_T *sref = iptr->isn_arg.script.scriptref;
+ svar_T *sv;
+
+ sv = get_script_svar(sref, ectx->ec_dfunc_idx);
+ if (sv == NULL)
+ goto theend;
+ allocate_if_null(sv);
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ copy_tv(sv->sv_tv, STACK_TV_BOT(0));
+ ++ectx->ec_stack.ga_len;
+ }
+ break;
+
+ // load s: variable in old script or autoload import
+ case ISN_LOADS:
+ case ISN_LOADEXPORT:
+ {
+ int sid = iptr->isn_arg.loadstore.ls_sid;
+ hashtab_T *ht = &SCRIPT_VARS(sid);
+ char_u *name = iptr->isn_arg.loadstore.ls_name;
+ dictitem_T *di = find_var_in_ht(ht, 0, name, TRUE);
+
+ if (di == NULL)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ semsg(_(e_undefined_variable_str), name);
+ goto on_error;
+ }
+ else
+ {
+ if (iptr->isn_type == ISN_LOADEXPORT)
+ {
+ int idx = get_script_item_idx(sid, name, 0,
+ NULL, NULL);
+ svar_T *sv;
+
+ if (idx >= 0)
+ {
+ sv = ((svar_T *)SCRIPT_ITEM(sid)
+ ->sn_var_vals.ga_data) + idx;
+ if ((sv->sv_flags & SVFLAG_EXPORTED) == 0)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ semsg(_(e_item_not_exported_in_script_str),
+ name);
+ goto on_error;
+ }
+ }
+ }
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ copy_tv(&di->di_tv, STACK_TV_BOT(0));
+ ++ectx->ec_stack.ga_len;
+ }
+ }
+ break;
+
+ // load g:/b:/w:/t: variable
+ case ISN_LOADG:
+ case ISN_LOADB:
+ case ISN_LOADW:
+ case ISN_LOADT:
+ {
+ int res = load_namespace_var(ectx, iptr->isn_type, iptr);
+
+ if (res == NOTDONE)
+ goto theend;
+ if (res == FAIL)
+ goto on_error;
+ }
+
+ break;
+
+ // load autoload variable
+ case ISN_LOADAUTO:
+ {
+ char_u *name = iptr->isn_arg.string;
+
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (eval_variable(name, (int)STRLEN(name), 0,
+ STACK_TV_BOT(0), NULL, EVAL_VAR_VERBOSE) == FAIL)
+ goto on_error;
+ ++ectx->ec_stack.ga_len;
+ }
+ break;
+
+ // load g:/b:/w:/t: namespace
+ case ISN_LOADGDICT:
+ case ISN_LOADBDICT:
+ case ISN_LOADWDICT:
+ case ISN_LOADTDICT:
+ {
+ dict_T *d = NULL;
+
+ switch (iptr->isn_type)
+ {
+ case ISN_LOADGDICT: d = get_globvar_dict(); break;
+ case ISN_LOADBDICT: d = curbuf->b_vars; break;
+ case ISN_LOADWDICT: d = curwin->w_vars; break;
+ case ISN_LOADTDICT: d = curtab->tp_vars; break;
+ default: // Cannot reach here
+ goto theend;
+ }
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ tv = STACK_TV_BOT(0);
+ tv->v_type = VAR_DICT;
+ tv->v_lock = 0;
+ tv->vval.v_dict = d;
+ ++d->dv_refcount;
+ ++ectx->ec_stack.ga_len;
+ }
+ break;
+
+ // load &option
+ case ISN_LOADOPT:
+ {
+ typval_T optval;
+ char_u *name = iptr->isn_arg.string;
+
+ // This is not expected to fail, name is checked during
+ // compilation: don't set SOURCING_LNUM.
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ if (eval_option(&name, &optval, TRUE) == FAIL)
+ goto theend;
+ *STACK_TV_BOT(0) = optval;
+ ++ectx->ec_stack.ga_len;
+ }
+ break;
+
+ // load $ENV
+ case ISN_LOADENV:
+ {
+ typval_T optval;
+ char_u *name = iptr->isn_arg.string;
+
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ // name is always valid, checked when compiling
+ (void)eval_env_var(&name, &optval, TRUE);
+ *STACK_TV_BOT(0) = optval;
+ ++ectx->ec_stack.ga_len;
+ }
+ break;
+
+ // load @register
+ case ISN_LOADREG:
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ tv = STACK_TV_BOT(0);
+ tv->v_type = VAR_STRING;
+ tv->v_lock = 0;
+ // This may result in NULL, which should be equivalent to an
+ // empty string.
+ tv->vval.v_string = get_reg_contents(
+ iptr->isn_arg.number, GREG_EXPR_SRC);
+ ++ectx->ec_stack.ga_len;
+ break;
+
+ // store local variable
+ case ISN_STORE:
+ --ectx->ec_stack.ga_len;
+ tv = STACK_TV_VAR(iptr->isn_arg.number);
+ if (check_typval_is_value(STACK_TV_BOT(0)) == FAIL)
+ {
+ clear_tv(STACK_TV_BOT(0));
+ goto on_error;
+ }
+ clear_tv(tv);
+ *tv = *STACK_TV_BOT(0);
+ break;
+
+ // store s: variable in old script or autoload import
+ case ISN_STORES:
+ case ISN_STOREEXPORT:
+ {
+ int sid = iptr->isn_arg.loadstore.ls_sid;
+ hashtab_T *ht = &SCRIPT_VARS(sid);
+ char_u *name = iptr->isn_arg.loadstore.ls_name;
+ dictitem_T *di = find_var_in_ht(ht, 0,
+ iptr->isn_type == ISN_STORES
+ ? name + 2 : name, TRUE);
+
+ --ectx->ec_stack.ga_len;
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (di == NULL)
+ {
+ if (iptr->isn_type == ISN_STOREEXPORT)
+ {
+ semsg(_(e_undefined_variable_str), name);
+ clear_tv(STACK_TV_BOT(0));
+ goto on_error;
+ }
+ store_var(name, STACK_TV_BOT(0));
+ }
+ else
+ {
+ if (iptr->isn_type == ISN_STOREEXPORT)
+ {
+ int idx = get_script_item_idx(sid, name, 0,
+ NULL, NULL);
+
+ // can this ever fail?
+ if (idx >= 0)
+ {
+ svar_T *sv = ((svar_T *)SCRIPT_ITEM(sid)
+ ->sn_var_vals.ga_data) + idx;
+
+ if ((sv->sv_flags & SVFLAG_EXPORTED) == 0)
+ {
+ semsg(_(e_item_not_exported_in_script_str),
+ name);
+ clear_tv(STACK_TV_BOT(0));
+ goto on_error;
+ }
+ }
+ }
+ if (var_check_permission(di, name) == FAIL)
+ {
+ clear_tv(STACK_TV_BOT(0));
+ goto on_error;
+ }
+ clear_tv(&di->di_tv);
+ di->di_tv = *STACK_TV_BOT(0);
+ }
+ }
+ break;
+
+ // store script-local variable in Vim9 script
+ case ISN_STORESCRIPT:
+ {
+ scriptref_T *sref = iptr->isn_arg.script.scriptref;
+ svar_T *sv;
+
+ sv = get_script_svar(sref, ectx->ec_dfunc_idx);
+ if (sv == NULL)
+ goto theend;
+ --ectx->ec_stack.ga_len;
+
+ // "const" and "final" are checked at compile time, locking
+ // the value needs to be checked here.
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (value_check_lock(sv->sv_tv->v_lock, sv->sv_name, FALSE))
+ {
+ clear_tv(STACK_TV_BOT(0));
+ goto on_error;
+ }
+
+ clear_tv(sv->sv_tv);
+ *sv->sv_tv = *STACK_TV_BOT(0);
+ }
+ break;
+
+ // store option
+ case ISN_STOREOPT:
+ case ISN_STOREFUNCOPT:
+ {
+ char_u *opt_name = iptr->isn_arg.storeopt.so_name;
+ int opt_flags = iptr->isn_arg.storeopt.so_flags;
+ long n = 0;
+ char_u *s = NULL;
+ char *msg;
+ char_u numbuf[NUMBUFLEN];
+ char_u *tofree = NULL;
+
+ --ectx->ec_stack.ga_len;
+ SOURCING_LNUM = iptr->isn_lnum;
+ tv = STACK_TV_BOT(0);
+ if (tv->v_type == VAR_STRING)
+ {
+ s = tv->vval.v_string;
+ if (s == NULL)
+ s = (char_u *)"";
+ }
+ else if (iptr->isn_type == ISN_STOREFUNCOPT)
+ {
+ // If the option can be set to a function reference or
+ // a lambda and the passed value is a function
+ // reference, then convert it to the name (string) of
+ // the function reference.
+ s = tv2string(tv, &tofree, numbuf, 0);
+ if (s == NULL || *s == NUL)
+ {
+ // cannot happen?
+ clear_tv(tv);
+ vim_free(tofree);
+ goto on_error;
+ }
+ }
+ else
+ // must be VAR_NUMBER, CHECKTYPE makes sure
+ n = tv->vval.v_number;
+ msg = set_option_value(opt_name, n, s, opt_flags);
+ clear_tv(tv);
+ vim_free(tofree);
+ if (msg != NULL)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ emsg(_(msg));
+ goto on_error;
+ }
+ }
+ break;
+
+ // store $ENV
+ case ISN_STOREENV:
+ --ectx->ec_stack.ga_len;
+ tv = STACK_TV_BOT(0);
+ vim_setenv_ext(iptr->isn_arg.string, tv_get_string(tv));
+ clear_tv(tv);
+ break;
+
+ // store @r
+ case ISN_STOREREG:
+ {
+ int reg = iptr->isn_arg.number;
+
+ --ectx->ec_stack.ga_len;
+ tv = STACK_TV_BOT(0);
+ write_reg_contents(reg, tv_get_string(tv), -1, FALSE);
+ clear_tv(tv);
+ }
+ break;
+
+ // store v: variable
+ case ISN_STOREV:
+ --ectx->ec_stack.ga_len;
+ if (set_vim_var_tv(iptr->isn_arg.number, STACK_TV_BOT(0))
+ == FAIL)
+ // should not happen, type is checked when compiling
+ goto on_error;
+ break;
+
+ // store g:/b:/w:/t: variable
+ case ISN_STOREG:
+ case ISN_STOREB:
+ case ISN_STOREW:
+ case ISN_STORET:
+ {
+ dictitem_T *di;
+ hashtab_T *ht;
+ char_u *name = iptr->isn_arg.string + 2;
+
+ switch (iptr->isn_type)
+ {
+ case ISN_STOREG:
+ ht = get_globvar_ht();
+ break;
+ case ISN_STOREB:
+ ht = &curbuf->b_vars->dv_hashtab;
+ break;
+ case ISN_STOREW:
+ ht = &curwin->w_vars->dv_hashtab;
+ break;
+ case ISN_STORET:
+ ht = &curtab->tp_vars->dv_hashtab;
+ break;
+ default: // Cannot reach here
+ goto theend;
+ }
+
+ --ectx->ec_stack.ga_len;
+ di = find_var_in_ht(ht, 0, name, TRUE);
+ if (di == NULL)
+ store_var(iptr->isn_arg.string, STACK_TV_BOT(0));
+ else
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (var_check_permission(di, name) == FAIL)
+ goto on_error;
+ clear_tv(&di->di_tv);
+ di->di_tv = *STACK_TV_BOT(0);
+ }
+ }
+ break;
+
+ // store an autoload variable
+ case ISN_STOREAUTO:
+ SOURCING_LNUM = iptr->isn_lnum;
+ set_var(iptr->isn_arg.string, STACK_TV_BOT(-1), TRUE);
+ clear_tv(STACK_TV_BOT(-1));
+ --ectx->ec_stack.ga_len;
+ break;
+
+ // store number in local variable
+ case ISN_STORENR:
+ tv = STACK_TV_VAR(iptr->isn_arg.storenr.stnr_idx);
+ clear_tv(tv);
+ tv->v_type = VAR_NUMBER;
+ tv->vval.v_number = iptr->isn_arg.storenr.stnr_val;
+ break;
+
+ // Store a value in a list, dict, blob or object variable.
+ case ISN_STOREINDEX:
+ {
+ int res = execute_storeindex(iptr, ectx);
+
+ if (res == FAIL)
+ goto on_error;
+ if (res == NOTDONE)
+ goto theend;
+ }
+ break;
+
+ // store value in list or blob range
+ case ISN_STORERANGE:
+ if (execute_storerange(iptr, ectx) == FAIL)
+ goto on_error;
+ break;
+
+ case ISN_LOAD_CLASSMEMBER:
+ {
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ classmember_T *cm = &iptr->isn_arg.classmember;
+ copy_tv(cm->cm_class->class_members_tv + cm->cm_idx,
+ STACK_TV_BOT(0));
+ ++ectx->ec_stack.ga_len;
+ }
+ break;
+
+ case ISN_STORE_CLASSMEMBER:
+ {
+ classmember_T *cm = &iptr->isn_arg.classmember;
+ tv = &cm->cm_class->class_members_tv[cm->cm_idx];
+ clear_tv(tv);
+ *tv = *STACK_TV_BOT(-1);
+ --ectx->ec_stack.ga_len;
+ }
+ break;
+
+ // Load or store variable or argument from outer scope.
+ case ISN_LOADOUTER:
+ case ISN_STOREOUTER:
+ {
+ int depth = iptr->isn_arg.outer.outer_depth;
+ outer_T *outer = ectx->ec_outer_ref == NULL ? NULL
+ : ectx->ec_outer_ref->or_outer;
+
+ while (depth > 1 && outer != NULL)
+ {
+ outer = outer->out_up;
+ --depth;
+ }
+ if (outer == NULL)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (ectx->ec_frame_idx == ectx->ec_initial_frame_idx
+ || ectx->ec_outer_ref == NULL)
+ // Possibly :def function called from legacy
+ // context.
+ emsg(_(e_closure_called_from_invalid_context));
+ else
+ iemsg("LOADOUTER depth more than scope levels");
+ goto theend;
+ }
+ if (depth < 0)
+ // Variable declared in loop. May be copied if the
+ // loop block has already ended.
+ tv = ((typval_T *)outer->out_loop[-depth - 1]
+ .stack->ga_data)
+ + outer->out_loop[-depth - 1].var_idx
+ + iptr->isn_arg.outer.outer_idx;
+ else
+ // Variable declared in a function. May be copied if
+ // the function has already returned.
+ tv = ((typval_T *)outer->out_stack->ga_data)
+ + outer->out_frame_idx + STACK_FRAME_SIZE
+ + iptr->isn_arg.outer.outer_idx;
+ if (iptr->isn_type == ISN_LOADOUTER)
+ {
+ typval_T *copy;
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ // careful: ga_grow_inner may re-alloc the stack
+ if (depth < 0)
+ copy = ((typval_T *)outer->out_loop[-depth - 1]
+ .stack->ga_data)
+ + outer->out_loop[-depth - 1].var_idx
+ + iptr->isn_arg.outer.outer_idx;
+ else
+ copy = ((typval_T *)outer->out_stack->ga_data)
+ + outer->out_frame_idx + STACK_FRAME_SIZE
+ + iptr->isn_arg.outer.outer_idx;
+ // memory was freed, get tv again
+ if (copy != tv)
+ tv = copy;
+ copy_tv(tv, STACK_TV_BOT(0));
+ ++ectx->ec_stack.ga_len;
+ }
+ else
+ {
+ --ectx->ec_stack.ga_len;
+ clear_tv(tv);
+ *tv = *STACK_TV_BOT(0);
+ }
+ }
+ break;
+
+ // unlet item in list or dict variable
+ case ISN_UNLETINDEX:
+ if (execute_unletindex(iptr, ectx) == FAIL)
+ goto on_error;
+ break;
+
+ // unlet range of items in list variable
+ case ISN_UNLETRANGE:
+ if (execute_unletrange(iptr, ectx) == FAIL)
+ goto on_error;
+ break;
+
+ // push constant
+ case ISN_PUSHNR:
+ case ISN_PUSHBOOL:
+ case ISN_PUSHSPEC:
+ case ISN_PUSHF:
+ case ISN_PUSHS:
+ case ISN_PUSHBLOB:
+ case ISN_PUSHFUNC:
+ case ISN_PUSHCHANNEL:
+ case ISN_PUSHJOB:
+ case ISN_PUSHOBJ:
+ case ISN_PUSHCLASS:
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ tv = STACK_TV_BOT(0);
+ tv->v_lock = 0;
+ ++ectx->ec_stack.ga_len;
+ switch (iptr->isn_type)
+ {
+ case ISN_PUSHNR:
+ tv->v_type = VAR_NUMBER;
+ tv->vval.v_number = iptr->isn_arg.number;
+ break;
+ case ISN_PUSHBOOL:
+ tv->v_type = VAR_BOOL;
+ tv->vval.v_number = iptr->isn_arg.number;
+ break;
+ case ISN_PUSHSPEC:
+ tv->v_type = VAR_SPECIAL;
+ tv->vval.v_number = iptr->isn_arg.number;
+ break;
+ case ISN_PUSHF:
+ tv->v_type = VAR_FLOAT;
+ tv->vval.v_float = iptr->isn_arg.fnumber;
+ break;
+ case ISN_PUSHBLOB:
+ blob_copy(iptr->isn_arg.blob, tv);
+ break;
+ case ISN_PUSHFUNC:
+ tv->v_type = VAR_FUNC;
+ if (iptr->isn_arg.string == NULL)
+ tv->vval.v_string = NULL;
+ else
+ tv->vval.v_string =
+ vim_strsave(iptr->isn_arg.string);
+ break;
+ case ISN_PUSHCHANNEL:
+#ifdef FEAT_JOB_CHANNEL
+ tv->v_type = VAR_CHANNEL;
+ tv->vval.v_channel = NULL;
+#endif
+ break;
+ case ISN_PUSHJOB:
+#ifdef FEAT_JOB_CHANNEL
+ tv->v_type = VAR_JOB;
+ tv->vval.v_job = NULL;
+#endif
+ break;
+ case ISN_PUSHOBJ:
+ tv->v_type = VAR_OBJECT;
+ tv->vval.v_object = NULL;
+ break;
+ case ISN_PUSHCLASS:
+ tv->v_type = VAR_CLASS;
+ tv->vval.v_class = iptr->isn_arg.classarg;
+ break;
+ default:
+ tv->v_type = VAR_STRING;
+ tv->vval.v_string = iptr->isn_arg.string == NULL
+ ? NULL : vim_strsave(iptr->isn_arg.string);
+ }
+ break;
+
+ case ISN_AUTOLOAD:
+ {
+ char_u *name = iptr->isn_arg.string;
+
+ (void)script_autoload(name, FALSE);
+ if (find_func(name, TRUE))
+ {
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ tv = STACK_TV_BOT(0);
+ tv->v_lock = 0;
+ ++ectx->ec_stack.ga_len;
+ tv->v_type = VAR_FUNC;
+ tv->vval.v_string = vim_strsave(name);
+ }
+ else
+ {
+ int res = load_namespace_var(ectx, ISN_LOADG, iptr);
+
+ if (res == NOTDONE)
+ goto theend;
+ if (res == FAIL)
+ goto on_error;
+ }
+ }
+ break;
+
+ case ISN_UNLET:
+ if (do_unlet(iptr->isn_arg.unlet.ul_name,
+ iptr->isn_arg.unlet.ul_forceit) == FAIL)
+ goto on_error;
+ break;
+ case ISN_UNLETENV:
+ vim_unsetenv_ext(iptr->isn_arg.unlet.ul_name);
+ break;
+
+ case ISN_LOCKUNLOCK:
+ {
+#ifdef LOG_LOCKVAR
+ ch_log(NULL, "LKVAR: execute INS_LOCKUNLOCK isn_arg %s",
+ iptr->isn_arg.string);
+#endif
+ lval_root_T *lval_root_save = lval_root;
+
+ // Stack has the local variable, argument the whole :lock
+ // or :unlock command, like ISN_EXEC.
+ --ectx->ec_stack.ga_len;
+ lval_root_T root = { .lr_tv = STACK_TV_BOT(0),
+ .lr_cl_exec = iptr->isn_arg.lockunlock.lu_cl_exec,
+ .lr_is_arg = iptr->isn_arg.lockunlock.lu_is_arg };
+ lval_root = &root;
+ int res = exec_command(iptr,
+ iptr->isn_arg.lockunlock.lu_string);
+ clear_tv(root.lr_tv);
+ lval_root = lval_root_save;
+ if (res == FAIL)
+ goto on_error;
+ }
+ break;
+
+ case ISN_LOCKCONST:
+ item_lock(STACK_TV_BOT(-1), 100, TRUE, TRUE);
+ break;
+
+ // create a list from items on the stack; uses a single allocation
+ // for the list header and the items
+ case ISN_NEWLIST:
+ if (exe_newlist(iptr->isn_arg.number, ectx) == FAIL)
+ goto theend;
+ break;
+
+ // create a dict from items on the stack
+ case ISN_NEWDICT:
+ {
+ int res;
+
+ SOURCING_LNUM = iptr->isn_lnum;
+ res = exe_newdict(iptr->isn_arg.number, ectx);
+ if (res == FAIL)
+ goto theend;
+ if (res == MAYBE)
+ goto on_error;
+ }
+ break;
+
+ case ISN_CONCAT:
+ if (exe_concat(iptr->isn_arg.number, ectx) == FAIL)
+ goto theend;
+ break;
+
+ // create a partial with NULL value
+ case ISN_NEWPARTIAL:
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ ++ectx->ec_stack.ga_len;
+ tv = STACK_TV_BOT(-1);
+ tv->v_type = VAR_PARTIAL;
+ tv->v_lock = 0;
+ tv->vval.v_partial = NULL;
+ break;
+
+ // call a :def function
+ case ISN_DCALL:
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (call_dfunc(iptr->isn_arg.dfunc.cdf_idx,
+ NULL,
+ iptr->isn_arg.dfunc.cdf_argcount,
+ ectx) == FAIL)
+ goto on_error;
+ break;
+
+ // call a method on an interface
+ case ISN_METHODCALL:
+ {
+ cmfunc_T *mfunc = iptr->isn_arg.mfunc;
+
+ SOURCING_LNUM = iptr->isn_lnum;
+ tv = STACK_TV_BOT(-1 - mfunc->cmf_argcount);
+ if (tv->v_type != VAR_OBJECT)
+ {
+ object_required_error(tv);
+ goto on_error;
+ }
+ object_T *obj = tv->vval.v_object;
+ class_T *cl = obj->obj_class;
+
+ // convert the interface index to the object index
+ int idx = object_index_from_itf_index(mfunc->cmf_itf,
+ TRUE, mfunc->cmf_idx, cl);
+
+ if (call_ufunc(cl->class_obj_methods[idx], NULL,
+ mfunc->cmf_argcount, ectx, NULL, NULL) == FAIL)
+ goto on_error;
+ }
+ break;
+
+ // call a builtin function
+ case ISN_BCALL:
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (call_bfunc(iptr->isn_arg.bfunc.cbf_idx,
+ iptr->isn_arg.bfunc.cbf_argcount,
+ ectx) == FAIL)
+ goto on_error;
+ break;
+
+ // call a funcref or partial
+ case ISN_PCALL:
+ {
+ cpfunc_T *pfunc = &iptr->isn_arg.pfunc;
+ int r;
+ typval_T partial_tv;
+
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (pfunc->cpf_top)
+ {
+ // funcref is above the arguments
+ tv = STACK_TV_BOT(-pfunc->cpf_argcount - 1);
+ }
+ else
+ {
+ // Get the funcref from the stack.
+ --ectx->ec_stack.ga_len;
+ partial_tv = *STACK_TV_BOT(0);
+ tv = &partial_tv;
+ }
+ r = call_partial(tv, pfunc->cpf_argcount, ectx);
+ if (tv == &partial_tv)
+ clear_tv(&partial_tv);
+ if (r == FAIL)
+ goto on_error;
+ }
+ break;
+
+ case ISN_PCALL_END:
+ // PCALL finished, arguments have been consumed and replaced by
+ // the return value. Now clear the funcref from the stack,
+ // and move the return value in its place.
+ --ectx->ec_stack.ga_len;
+ clear_tv(STACK_TV_BOT(-1));
+ *STACK_TV_BOT(-1) = *STACK_TV_BOT(0);
+ break;
+
+ // call a user defined function or funcref/partial
+ case ISN_UCALL:
+ {
+ cufunc_T *cufunc = &iptr->isn_arg.ufunc;
+
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (call_eval_func(cufunc->cuf_name, cufunc->cuf_argcount,
+ ectx, iptr) == FAIL)
+ goto on_error;
+ }
+ break;
+
+ // :defer func(arg)
+ case ISN_DEFER:
+ if (defer_command(iptr->isn_arg.defer.defer_var_idx,
+ iptr->isn_arg.defer.defer_argcount, ectx) == FAIL)
+ goto on_error;
+ break;
+
+ // Return from a :def function call without a value.
+ // Return from a constructor.
+ case ISN_RETURN_VOID:
+ case ISN_RETURN_OBJECT:
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ tv = STACK_TV_BOT(0);
+ ++ectx->ec_stack.ga_len;
+ if (iptr->isn_type == ISN_RETURN_VOID)
+ {
+ tv->v_type = VAR_VOID;
+ tv->vval.v_number = 0;
+ tv->v_lock = 0;
+ }
+ else
+ {
+ *tv = *STACK_TV_VAR(0);
+ object_T *obj = tv->vval.v_object;
+ ++obj->obj_refcount;
+
+ // Lock all the constant object variables
+ obj_lock_const_vars(obj);
+ }
+ // FALLTHROUGH
+
+ // return from a :def function call with what is on the stack
+ case ISN_RETURN:
+ {
+ garray_T *trystack = &ectx->ec_trystack;
+ trycmd_T *trycmd = NULL;
+
+ ///////////////////////////////////////////////////
+ // TODO: If FAIL, line number in output not correct
+ ///////////////////////////////////////////////////
+ if (check_typval_is_value(STACK_TV_BOT(-1)) == FAIL)
+ goto theend;
+
+ if (trystack->ga_len > 0)
+ trycmd = ((trycmd_T *)trystack->ga_data)
+ + trystack->ga_len - 1;
+ if (trycmd != NULL
+ && trycmd->tcd_frame_idx == ectx->ec_frame_idx)
+ {
+ // jump to ":finally" or ":endtry"
+ if (trycmd->tcd_finally_idx != 0)
+ ectx->ec_iidx = trycmd->tcd_finally_idx;
+ else
+ ectx->ec_iidx = trycmd->tcd_endtry_idx;
+ trycmd->tcd_return = TRUE;
+ }
+ else
+ goto func_return;
+ }
+ break;
+
+ // push a partial, a reference to a compiled function
+ case ISN_FUNCREF:
+ {
+ partial_T *pt = ALLOC_CLEAR_ONE(partial_T);
+ ufunc_T *ufunc;
+ funcref_T *funcref = &iptr->isn_arg.funcref;
+ funcref_extra_T *extra = funcref->fr_extra;
+
+ if (pt == NULL)
+ goto theend;
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ {
+ vim_free(pt);
+ goto theend;
+ }
+ if (extra != NULL && extra->fre_class != NULL)
+ {
+ class_T *cl;
+ if (extra->fre_object_method)
+ {
+ tv = STACK_TV_BOT(-1);
+ if (tv->v_type != VAR_OBJECT)
+ {
+ object_required_error(tv);
+ vim_free(pt);
+ goto on_error;
+ }
+
+ object_T *obj = tv->vval.v_object;
+ cl = obj->obj_class;
+ // drop the value from the stack
+ clear_tv(tv);
+ --ectx->ec_stack.ga_len;
+
+ pt->pt_obj = obj;
+ ++obj->obj_refcount;
+ }
+ else
+ cl = extra->fre_class;
+
+ if (extra->fre_object_method)
+ {
+ // object method
+ // convert the interface index to the object index
+ int idx =
+ object_index_from_itf_index(extra->fre_class,
+ TRUE, extra->fre_method_idx, cl);
+ ufunc = cl->class_obj_methods[idx];
+ }
+ else
+ {
+ // class method
+ ufunc =
+ cl->class_class_functions[extra->fre_method_idx];
+ }
+ }
+ else if (extra == NULL || extra->fre_func_name == NULL)
+ {
+ dfunc_T *pt_dfunc = ((dfunc_T *)def_functions.ga_data)
+ + funcref->fr_dfunc_idx;
+
+ ufunc = pt_dfunc->df_ufunc;
+ }
+ else
+ {
+ ufunc = find_func(extra->fre_func_name, FALSE);
+ }
+ if (ufunc == NULL)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ iemsg("ufunc unexpectedly NULL for FUNCREF");
+ goto theend;
+ }
+ if (fill_partial_and_closure(pt, ufunc,
+ extra == NULL ? NULL : &extra->fre_loopvar_info,
+ ectx) == FAIL)
+ goto theend;
+ tv = STACK_TV_BOT(0);
+ ++ectx->ec_stack.ga_len;
+ tv->vval.v_partial = pt;
+ tv->v_type = VAR_PARTIAL;
+ tv->v_lock = 0;
+ }
+ break;
+
+ // Create a global function from a lambda.
+ case ISN_NEWFUNC:
+ {
+ newfuncarg_T *arg = iptr->isn_arg.newfunc.nf_arg;
+
+ if (copy_lambda_to_global_func(arg->nfa_lambda,
+ arg->nfa_global, &arg->nfa_loopvar_info,
+ ectx) == FAIL)
+ goto theend;
+ }
+ break;
+
+ // List functions
+ case ISN_DEF:
+ if (iptr->isn_arg.string == NULL)
+ list_functions(NULL);
+ else
+ {
+ exarg_T ea;
+ garray_T lines_to_free;
+
+ CLEAR_FIELD(ea);
+ ea.cmd = ea.arg = iptr->isn_arg.string;
+ ga_init2(&lines_to_free, sizeof(char_u *), 50);
+ SOURCING_LNUM = iptr->isn_lnum;
+ define_function(&ea, NULL, &lines_to_free, 0, NULL, 0);
+ ga_clear_strings(&lines_to_free);
+ }
+ break;
+
+ // jump if a condition is met
+ case ISN_JUMP:
+ {
+ jumpwhen_T when = iptr->isn_arg.jump.jump_when;
+ int error = FALSE;
+ int jump = TRUE;
+
+ if (when != JUMP_ALWAYS)
+ {
+ tv = STACK_TV_BOT(-1);
+ if (when == JUMP_IF_COND_FALSE
+ || when == JUMP_IF_FALSE
+ || when == JUMP_IF_COND_TRUE)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ jump = tv_get_bool_chk(tv, &error);
+ if (error)
+ goto on_error;
+ }
+ else
+ jump = tv2bool(tv);
+ if (when == JUMP_IF_FALSE || when == JUMP_IF_COND_FALSE)
+ jump = !jump;
+ if (when == JUMP_IF_FALSE || !jump)
+ {
+ // drop the value from the stack
+ clear_tv(tv);
+ --ectx->ec_stack.ga_len;
+ }
+ }
+ if (jump)
+ ectx->ec_iidx = iptr->isn_arg.jump.jump_where;
+ }
+ break;
+
+ // "while": jump to end if a condition is false
+ case ISN_WHILE:
+ {
+ int error = FALSE;
+ int jump = TRUE;
+
+ tv = STACK_TV_BOT(-1);
+ SOURCING_LNUM = iptr->isn_lnum;
+ jump = !tv_get_bool_chk(tv, &error);
+ if (error)
+ goto on_error;
+ // drop the value from the stack
+ clear_tv(tv);
+ --ectx->ec_stack.ga_len;
+ if (jump)
+ ectx->ec_iidx = iptr->isn_arg.whileloop.while_end;
+
+ // Store the current funcref count, may be used by
+ // ISN_ENDLOOP later
+ tv = STACK_TV_VAR(
+ iptr->isn_arg.whileloop.while_funcref_idx);
+ tv->vval.v_number = ectx->ec_funcrefs.ga_len;
+ }
+ break;
+
+ // Jump if an argument with a default value was already set and not
+ // v:none.
+ case ISN_JUMP_IF_ARG_SET:
+ case ISN_JUMP_IF_ARG_NOT_SET:
+ tv = STACK_TV_VAR(iptr->isn_arg.jumparg.jump_arg_off);
+ int arg_set = tv->v_type != VAR_UNKNOWN
+ && !(tv->v_type == VAR_SPECIAL
+ && tv->vval.v_number == VVAL_NONE);
+ if (iptr->isn_type == ISN_JUMP_IF_ARG_SET ? arg_set : !arg_set)
+ ectx->ec_iidx = iptr->isn_arg.jumparg.jump_where;
+ break;
+
+ // top of a for loop
+ case ISN_FOR:
+ if (execute_for(iptr, ectx) == FAIL)
+ goto theend;
+ break;
+
+ // end of a for or while loop
+ case ISN_ENDLOOP:
+ if (execute_endloop(iptr, ectx) == FAIL)
+ goto theend;
+ break;
+
+ // start of ":try" block
+ case ISN_TRY:
+ {
+ trycmd_T *trycmd = NULL;
+
+ if (GA_GROW_FAILS(&ectx->ec_trystack, 1))
+ goto theend;
+ trycmd = ((trycmd_T *)ectx->ec_trystack.ga_data)
+ + ectx->ec_trystack.ga_len;
+ ++ectx->ec_trystack.ga_len;
+ ++trylevel;
+ CLEAR_POINTER(trycmd);
+ trycmd->tcd_frame_idx = ectx->ec_frame_idx;
+ trycmd->tcd_stack_len = ectx->ec_stack.ga_len;
+ trycmd->tcd_catch_idx =
+ iptr->isn_arg.tryref.try_ref->try_catch;
+ trycmd->tcd_finally_idx =
+ iptr->isn_arg.tryref.try_ref->try_finally;
+ trycmd->tcd_endtry_idx =
+ iptr->isn_arg.tryref.try_ref->try_endtry;
+ }
+ break;
+
+ case ISN_PUSHEXC:
+ if (current_exception == NULL)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ iemsg("Evaluating catch while current_exception is NULL");
+ goto theend;
+ }
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ tv = STACK_TV_BOT(0);
+ ++ectx->ec_stack.ga_len;
+ tv->v_type = VAR_STRING;
+ tv->v_lock = 0;
+ tv->vval.v_string = vim_strsave(
+ (char_u *)current_exception->value);
+ break;
+
+ case ISN_CATCH:
+ {
+ garray_T *trystack = &ectx->ec_trystack;
+ trycmd_T *trycmd;
+
+ may_restore_cmdmod(&ectx->ec_funclocal);
+ trycmd = ((trycmd_T *)trystack->ga_data)
+ + trystack->ga_len - 1;
+ trycmd->tcd_caught = TRUE;
+ trycmd->tcd_did_throw = FALSE;
+
+ did_emsg = got_int = did_throw = FALSE;
+ force_abort = need_rethrow = FALSE;
+ catch_exception(current_exception);
+ }
+ break;
+
+ case ISN_TRYCONT:
+ {
+ garray_T *trystack = &ectx->ec_trystack;
+ trycont_T *trycont = &iptr->isn_arg.trycont;
+ int i;
+ trycmd_T *trycmd;
+ int iidx = trycont->tct_where;
+
+ if (trystack->ga_len < trycont->tct_levels)
+ {
+ siemsg("TRYCONT: expected %d levels, found %d",
+ trycont->tct_levels, trystack->ga_len);
+ goto theend;
+ }
+ // Make :endtry jump to any outer try block and the last
+ // :endtry inside the loop to the loop start.
+ for (i = trycont->tct_levels; i > 0; --i)
+ {
+ trycmd = ((trycmd_T *)trystack->ga_data)
+ + trystack->ga_len - i;
+ // Add one to tcd_cont to be able to jump to
+ // instruction with index zero.
+ trycmd->tcd_cont = iidx + 1;
+ iidx = trycmd->tcd_finally_idx == 0
+ ? trycmd->tcd_endtry_idx : trycmd->tcd_finally_idx;
+ }
+ // jump to :finally or :endtry of current try statement
+ ectx->ec_iidx = iidx;
+ }
+ break;
+
+ case ISN_FINALLY:
+ {
+ garray_T *trystack = &ectx->ec_trystack;
+ trycmd_T *trycmd = ((trycmd_T *)trystack->ga_data)
+ + trystack->ga_len - 1;
+
+ // Reset the index to avoid a return statement jumps here
+ // again.
+ trycmd->tcd_finally_idx = 0;
+ break;
+ }
+
+ // end of ":try" block
+ case ISN_ENDTRY:
+ {
+ garray_T *trystack = &ectx->ec_trystack;
+ trycmd_T *trycmd;
+
+ --trystack->ga_len;
+ --trylevel;
+ trycmd = ((trycmd_T *)trystack->ga_data) + trystack->ga_len;
+ if (trycmd->tcd_did_throw)
+ did_throw = TRUE;
+ if (trycmd->tcd_caught && current_exception != NULL)
+ {
+ // discard the exception
+ if (caught_stack == current_exception)
+ caught_stack = caught_stack->caught;
+ discard_current_exception();
+ }
+
+ if (trycmd->tcd_return)
+ goto func_return;
+
+ while (ectx->ec_stack.ga_len > trycmd->tcd_stack_len)
+ {
+ --ectx->ec_stack.ga_len;
+ clear_tv(STACK_TV_BOT(0));
+ }
+ if (trycmd->tcd_cont != 0)
+ // handling :continue: jump to outer try block or
+ // start of the loop
+ ectx->ec_iidx = trycmd->tcd_cont - 1;
+ }
+ break;
+
+ case ISN_THROW:
+ {
+ garray_T *trystack = &ectx->ec_trystack;
+
+ if (trystack->ga_len == 0 && trylevel == 0 && emsg_silent)
+ {
+ // Throwing an exception while using "silent!" causes
+ // the function to abort but not display an error.
+ tv = STACK_TV_BOT(-1);
+ clear_tv(tv);
+ tv->v_type = VAR_NUMBER;
+ tv->vval.v_number = 0;
+ goto done;
+ }
+ --ectx->ec_stack.ga_len;
+ tv = STACK_TV_BOT(0);
+ if (tv->vval.v_string == NULL
+ || *skipwhite(tv->vval.v_string) == NUL)
+ {
+ vim_free(tv->vval.v_string);
+ SOURCING_LNUM = iptr->isn_lnum;
+ emsg(_(e_throw_with_empty_string));
+ goto theend;
+ }
+
+ // Inside a "catch" we need to first discard the caught
+ // exception.
+ if (trystack->ga_len > 0)
+ {
+ trycmd_T *trycmd = ((trycmd_T *)trystack->ga_data)
+ + trystack->ga_len - 1;
+ if (trycmd->tcd_caught && current_exception != NULL)
+ {
+ // discard the exception
+ if (caught_stack == current_exception)
+ caught_stack = caught_stack->caught;
+ discard_current_exception();
+ trycmd->tcd_caught = FALSE;
+ }
+ }
+
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (throw_exception(tv->vval.v_string, ET_USER, NULL)
+ == FAIL)
+ {
+ vim_free(tv->vval.v_string);
+ goto theend;
+ }
+ did_throw = TRUE;
+ }
+ break;
+
+ // compare with special values
+ case ISN_COMPAREBOOL:
+ case ISN_COMPARESPECIAL:
+ {
+ typval_T *tv1 = STACK_TV_BOT(-2);
+ typval_T *tv2 = STACK_TV_BOT(-1);
+ varnumber_T arg1 = tv1->vval.v_number;
+ varnumber_T arg2 = tv2->vval.v_number;
+ int res;
+
+ if (iptr->isn_arg.op.op_type == EXPR_EQUAL)
+ res = arg1 == arg2;
+ else
+ res = arg1 != arg2;
+
+ --ectx->ec_stack.ga_len;
+ tv1->v_type = VAR_BOOL;
+ tv1->vval.v_number = res ? VVAL_TRUE : VVAL_FALSE;
+ }
+ break;
+
+ case ISN_COMPARENULL:
+ {
+ typval_T *tv1 = STACK_TV_BOT(-2);
+ typval_T *tv2 = STACK_TV_BOT(-1);
+ int res;
+
+ res = typval_compare_null(tv1, tv2);
+ if (res == MAYBE)
+ goto on_error;
+ if (iptr->isn_arg.op.op_type == EXPR_NEQUAL)
+ res = !res;
+ clear_tv(tv1);
+ clear_tv(tv2);
+ --ectx->ec_stack.ga_len;
+ tv1->v_type = VAR_BOOL;
+ tv1->vval.v_number = res ? VVAL_TRUE : VVAL_FALSE;
+ }
+ break;
+
+ // Operation with two number arguments
+ case ISN_OPNR:
+ case ISN_COMPARENR:
+ {
+ typval_T *tv1 = STACK_TV_BOT(-2);
+ typval_T *tv2 = STACK_TV_BOT(-1);
+ varnumber_T arg1 = tv1->vval.v_number;
+ varnumber_T arg2 = tv2->vval.v_number;
+ varnumber_T res = 0;
+ int div_zero = FALSE;
+
+ if (iptr->isn_arg.op.op_type == EXPR_LSHIFT
+ || iptr->isn_arg.op.op_type == EXPR_RSHIFT)
+ {
+ if (arg2 < 0)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ emsg(_(e_bitshift_ops_must_be_positive));
+ goto on_error;
+ }
+ }
+
+ switch (iptr->isn_arg.op.op_type)
+ {
+ case EXPR_MULT: res = arg1 * arg2; break;
+ case EXPR_DIV: if (arg2 == 0)
+ div_zero = TRUE;
+ else
+ res = arg1 / arg2;
+ break;
+ case EXPR_REM: if (arg2 == 0)
+ div_zero = TRUE;
+ else
+ res = arg1 % arg2;
+ break;
+ case EXPR_SUB: res = arg1 - arg2; break;
+ case EXPR_ADD: res = arg1 + arg2; break;
+
+ case EXPR_EQUAL: res = arg1 == arg2; break;
+ case EXPR_NEQUAL: res = arg1 != arg2; break;
+ case EXPR_GREATER: res = arg1 > arg2; break;
+ case EXPR_GEQUAL: res = arg1 >= arg2; break;
+ case EXPR_SMALLER: res = arg1 < arg2; break;
+ case EXPR_SEQUAL: res = arg1 <= arg2; break;
+ case EXPR_LSHIFT: if (arg2 > MAX_LSHIFT_BITS)
+ res = 0;
+ else
+ res = (uvarnumber_T)arg1 << arg2;
+ break;
+ case EXPR_RSHIFT: if (arg2 > MAX_LSHIFT_BITS)
+ res = 0;
+ else
+ res = (uvarnumber_T)arg1 >> arg2;
+ break;
+ default: break;
+ }
+
+ --ectx->ec_stack.ga_len;
+ if (iptr->isn_type == ISN_COMPARENR)
+ {
+ tv1->v_type = VAR_BOOL;
+ tv1->vval.v_number = res ? VVAL_TRUE : VVAL_FALSE;
+ }
+ else
+ tv1->vval.v_number = res;
+ if (div_zero)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ emsg(_(e_divide_by_zero));
+ goto on_error;
+ }
+ }
+ break;
+
+ // Computation with two float arguments
+ case ISN_OPFLOAT:
+ case ISN_COMPAREFLOAT:
+ {
+ typval_T *tv1 = STACK_TV_BOT(-2);
+ typval_T *tv2 = STACK_TV_BOT(-1);
+ float_T arg1 = tv1->vval.v_float;
+ float_T arg2 = tv2->vval.v_float;
+ float_T res = 0;
+ int cmp = FALSE;
+
+ switch (iptr->isn_arg.op.op_type)
+ {
+ case EXPR_MULT: res = arg1 * arg2; break;
+ case EXPR_DIV: res = arg1 / arg2; break;
+ case EXPR_SUB: res = arg1 - arg2; break;
+ case EXPR_ADD: res = arg1 + arg2; break;
+
+ case EXPR_EQUAL: cmp = arg1 == arg2; break;
+ case EXPR_NEQUAL: cmp = arg1 != arg2; break;
+ case EXPR_GREATER: cmp = arg1 > arg2; break;
+ case EXPR_GEQUAL: cmp = arg1 >= arg2; break;
+ case EXPR_SMALLER: cmp = arg1 < arg2; break;
+ case EXPR_SEQUAL: cmp = arg1 <= arg2; break;
+ default: cmp = 0; break;
+ }
+ --ectx->ec_stack.ga_len;
+ if (iptr->isn_type == ISN_COMPAREFLOAT)
+ {
+ tv1->v_type = VAR_BOOL;
+ tv1->vval.v_number = cmp ? VVAL_TRUE : VVAL_FALSE;
+ }
+ else
+ tv1->vval.v_float = res;
+ }
+ break;
+
+ case ISN_COMPARELIST:
+ case ISN_COMPAREDICT:
+ case ISN_COMPAREFUNC:
+ case ISN_COMPARESTRING:
+ case ISN_COMPAREBLOB:
+ case ISN_COMPAREOBJECT:
+ {
+ typval_T *tv1 = STACK_TV_BOT(-2);
+ typval_T *tv2 = STACK_TV_BOT(-1);
+ exprtype_T exprtype = iptr->isn_arg.op.op_type;
+ int ic = iptr->isn_arg.op.op_ic;
+ int res = FALSE;
+ int status = OK;
+
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (iptr->isn_type == ISN_COMPARELIST)
+ {
+ status = typval_compare_list(tv1, tv2,
+ exprtype, ic, &res);
+ }
+ else if (iptr->isn_type == ISN_COMPAREDICT)
+ {
+ status = typval_compare_dict(tv1, tv2,
+ exprtype, ic, &res);
+ }
+ else if (iptr->isn_type == ISN_COMPAREFUNC)
+ {
+ status = typval_compare_func(tv1, tv2,
+ exprtype, ic, &res);
+ }
+ else if (iptr->isn_type == ISN_COMPARESTRING)
+ {
+ status = typval_compare_string(tv1, tv2,
+ exprtype, ic, &res);
+ }
+ else if (iptr->isn_type == ISN_COMPAREBLOB)
+ {
+ status = typval_compare_blob(tv1, tv2, exprtype, &res);
+ }
+ else // ISN_COMPAREOBJECT
+ {
+ status = typval_compare_object(tv1, tv2,
+ exprtype, FALSE, &res);
+ }
+ --ectx->ec_stack.ga_len;
+ clear_tv(tv1);
+ clear_tv(tv2);
+ tv1->v_type = VAR_BOOL;
+ tv1->vval.v_number = res ? VVAL_TRUE : VVAL_FALSE;
+ if (status == FAIL)
+ goto theend;
+ }
+ break;
+
+ case ISN_COMPAREANY:
+ {
+ typval_T *tv1 = STACK_TV_BOT(-2);
+ typval_T *tv2 = STACK_TV_BOT(-1);
+ exprtype_T exprtype = iptr->isn_arg.op.op_type;
+ int ic = iptr->isn_arg.op.op_ic;
+ int status;
+
+ SOURCING_LNUM = iptr->isn_lnum;
+ status = typval_compare(tv1, tv2, exprtype, ic);
+ clear_tv(tv2);
+ --ectx->ec_stack.ga_len;
+ if (status == FAIL)
+ goto theend;
+ }
+ break;
+
+ case ISN_ADDLIST:
+ case ISN_ADDBLOB:
+ {
+ typval_T *tv1 = STACK_TV_BOT(-2);
+ typval_T *tv2 = STACK_TV_BOT(-1);
+
+ // add two lists or blobs
+ if (iptr->isn_type == ISN_ADDLIST)
+ {
+ if (iptr->isn_arg.op.op_type == EXPR_APPEND
+ && tv1->vval.v_list != NULL)
+ list_extend(tv1->vval.v_list, tv2->vval.v_list,
+ NULL);
+ else
+ eval_addlist(tv1, tv2);
+ }
+ else
+ eval_addblob(tv1, tv2);
+ clear_tv(tv2);
+ --ectx->ec_stack.ga_len;
+ }
+ break;
+
+ case ISN_LISTAPPEND:
+ {
+ typval_T *tv1 = STACK_TV_BOT(-2);
+ typval_T *tv2 = STACK_TV_BOT(-1);
+ list_T *l = tv1->vval.v_list;
+
+ // add an item to a list
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (l == NULL)
+ {
+ emsg(_(e_cannot_add_to_null_list));
+ goto on_error;
+ }
+ if (value_check_lock(l->lv_lock, NULL, FALSE))
+ goto on_error;
+ if (list_append_tv(l, tv2) == FAIL)
+ goto theend;
+ clear_tv(tv2);
+ --ectx->ec_stack.ga_len;
+ }
+ break;
+
+ case ISN_BLOBAPPEND:
+ {
+ typval_T *tv1 = STACK_TV_BOT(-2);
+ typval_T *tv2 = STACK_TV_BOT(-1);
+ blob_T *b = tv1->vval.v_blob;
+ int error = FALSE;
+ varnumber_T n;
+
+ // add a number to a blob
+ if (b == NULL)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ emsg(_(e_cannot_add_to_null_blob));
+ goto on_error;
+ }
+ n = tv_get_number_chk(tv2, &error);
+ if (error)
+ goto on_error;
+ ga_append(&b->bv_ga, (int)n);
+ --ectx->ec_stack.ga_len;
+ }
+ break;
+
+ // Computation with two arguments of unknown type
+ case ISN_OPANY:
+ {
+ typval_T *tv1 = STACK_TV_BOT(-2);
+ typval_T *tv2 = STACK_TV_BOT(-1);
+ varnumber_T n1, n2;
+ float_T f1 = 0, f2 = 0;
+ int error = FALSE;
+
+ if (iptr->isn_arg.op.op_type == EXPR_ADD)
+ {
+ if (tv1->v_type == VAR_LIST && tv2->v_type == VAR_LIST)
+ {
+ eval_addlist(tv1, tv2);
+ clear_tv(tv2);
+ --ectx->ec_stack.ga_len;
+ break;
+ }
+ else if (tv1->v_type == VAR_BLOB
+ && tv2->v_type == VAR_BLOB)
+ {
+ eval_addblob(tv1, tv2);
+ clear_tv(tv2);
+ --ectx->ec_stack.ga_len;
+ break;
+ }
+ }
+ if (tv1->v_type == VAR_FLOAT)
+ {
+ f1 = tv1->vval.v_float;
+ n1 = 0;
+ }
+ else
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ n1 = tv_get_number_chk(tv1, &error);
+ if (error)
+ goto on_error;
+ if (tv2->v_type == VAR_FLOAT)
+ f1 = n1;
+ }
+ if (tv2->v_type == VAR_FLOAT)
+ {
+ f2 = tv2->vval.v_float;
+ n2 = 0;
+ }
+ else
+ {
+ n2 = tv_get_number_chk(tv2, &error);
+ if (error)
+ goto on_error;
+ if (tv1->v_type == VAR_FLOAT)
+ f2 = n2;
+ }
+ // if there is a float on either side the result is a float
+ if (tv1->v_type == VAR_FLOAT || tv2->v_type == VAR_FLOAT)
+ {
+ switch (iptr->isn_arg.op.op_type)
+ {
+ case EXPR_MULT: f1 = f1 * f2; break;
+ case EXPR_DIV: f1 = f1 / f2; break;
+ case EXPR_SUB: f1 = f1 - f2; break;
+ case EXPR_ADD: f1 = f1 + f2; break;
+ default: SOURCING_LNUM = iptr->isn_lnum;
+ emsg(_(e_cannot_use_percent_with_float));
+ goto on_error;
+ }
+ clear_tv(tv1);
+ clear_tv(tv2);
+ tv1->v_type = VAR_FLOAT;
+ tv1->vval.v_float = f1;
+ --ectx->ec_stack.ga_len;
+ }
+ else
+ {
+ int failed = FALSE;
+
+ switch (iptr->isn_arg.op.op_type)
+ {
+ case EXPR_MULT: n1 = n1 * n2; break;
+ case EXPR_DIV: n1 = num_divide(n1, n2, &failed);
+ if (failed)
+ goto on_error;
+ break;
+ case EXPR_SUB: n1 = n1 - n2; break;
+ case EXPR_ADD: n1 = n1 + n2; break;
+ default: n1 = num_modulus(n1, n2, &failed);
+ if (failed)
+ goto on_error;
+ break;
+ }
+ clear_tv(tv1);
+ clear_tv(tv2);
+ tv1->v_type = VAR_NUMBER;
+ tv1->vval.v_number = n1;
+ --ectx->ec_stack.ga_len;
+ }
+ }
+ break;
+
+ case ISN_STRINDEX:
+ case ISN_STRSLICE:
+ {
+ int is_slice = iptr->isn_type == ISN_STRSLICE;
+ varnumber_T n1 = 0, n2;
+ char_u *res;
+
+ // string index: string is at stack-2, index at stack-1
+ // string slice: string is at stack-3, first index at
+ // stack-2, second index at stack-1
+ if (is_slice)
+ {
+ tv = STACK_TV_BOT(-2);
+ n1 = tv->vval.v_number;
+ }
+
+ tv = STACK_TV_BOT(-1);
+ n2 = tv->vval.v_number;
+
+ ectx->ec_stack.ga_len -= is_slice ? 2 : 1;
+ tv = STACK_TV_BOT(-1);
+ if (is_slice)
+ // Slice: Select the characters from the string
+ res = string_slice(tv->vval.v_string, n1, n2, FALSE);
+ else
+ // Index: The resulting variable is a string of a
+ // single character (including composing characters).
+ // If the index is too big or negative the result is
+ // empty.
+ res = char_from_string(tv->vval.v_string, n2);
+ vim_free(tv->vval.v_string);
+ tv->vval.v_string = res;
+ }
+ break;
+
+ case ISN_LISTINDEX:
+ case ISN_LISTSLICE:
+ case ISN_BLOBINDEX:
+ case ISN_BLOBSLICE:
+ {
+ int is_slice = iptr->isn_type == ISN_LISTSLICE
+ || iptr->isn_type == ISN_BLOBSLICE;
+ int is_blob = iptr->isn_type == ISN_BLOBINDEX
+ || iptr->isn_type == ISN_BLOBSLICE;
+ varnumber_T n1, n2;
+ typval_T *val_tv;
+
+ // list index: list is at stack-2, index at stack-1
+ // list slice: list is at stack-3, indexes at stack-2 and
+ // stack-1
+ // Same for blob.
+ val_tv = is_slice ? STACK_TV_BOT(-3) : STACK_TV_BOT(-2);
+
+ tv = STACK_TV_BOT(-1);
+ n1 = n2 = tv->vval.v_number;
+ clear_tv(tv);
+
+ if (is_slice)
+ {
+ tv = STACK_TV_BOT(-2);
+ n1 = tv->vval.v_number;
+ clear_tv(tv);
+ }
+
+ ectx->ec_stack.ga_len -= is_slice ? 2 : 1;
+ tv = STACK_TV_BOT(-1);
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (is_blob)
+ {
+ if (blob_slice_or_index(val_tv->vval.v_blob, is_slice,
+ n1, n2, FALSE, tv) == FAIL)
+ goto on_error;
+ }
+ else
+ {
+ if (list_slice_or_index(val_tv->vval.v_list, is_slice,
+ n1, n2, FALSE, tv, TRUE) == FAIL)
+ goto on_error;
+ }
+ }
+ break;
+
+ case ISN_ANYINDEX:
+ case ISN_ANYSLICE:
+ {
+ int is_slice = iptr->isn_type == ISN_ANYSLICE;
+ typval_T *var1, *var2;
+ int res;
+
+ // index: composite is at stack-2, index at stack-1
+ // slice: composite is at stack-3, indexes at stack-2 and
+ // stack-1
+ tv = is_slice ? STACK_TV_BOT(-3) : STACK_TV_BOT(-2);
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (check_can_index(tv, TRUE, TRUE) == FAIL)
+ goto on_error;
+ var1 = is_slice ? STACK_TV_BOT(-2) : STACK_TV_BOT(-1);
+ var2 = is_slice ? STACK_TV_BOT(-1) : NULL;
+ res = eval_index_inner(tv, is_slice, var1, var2,
+ FALSE, NULL, -1, TRUE);
+ clear_tv(var1);
+ if (is_slice)
+ clear_tv(var2);
+ ectx->ec_stack.ga_len -= is_slice ? 2 : 1;
+ if (res == FAIL)
+ goto on_error;
+ }
+ break;
+
+ case ISN_SLICE:
+ {
+ list_T *list;
+ int count = iptr->isn_arg.number;
+
+ // type will have been checked to be a list
+ tv = STACK_TV_BOT(-1);
+ list = tv->vval.v_list;
+
+ // no error for short list, expect it to be checked earlier
+ if (list != NULL && list->lv_len >= count)
+ {
+ list_T *newlist = list_slice(list,
+ count, list->lv_len - 1);
+
+ if (newlist != NULL)
+ {
+ list_unref(list);
+ tv->vval.v_list = newlist;
+ ++newlist->lv_refcount;
+ }
+ }
+ }
+ break;
+
+ case ISN_GETITEM:
+ {
+ listitem_T *li;
+ getitem_T *gi = &iptr->isn_arg.getitem;
+
+ // Get list item: list is at stack-1, push item.
+ // List type and length is checked for when compiling.
+ tv = STACK_TV_BOT(-1 - gi->gi_with_op);
+ li = list_find(tv->vval.v_list, gi->gi_index);
+
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ ++ectx->ec_stack.ga_len;
+ copy_tv(&li->li_tv, STACK_TV_BOT(-1));
+
+ // Useful when used in unpack assignment. Reset at
+ // ISN_DROP.
+ ectx->ec_where.wt_index = gi->gi_index + 1;
+ ectx->ec_where.wt_kind = WT_VARIABLE;
+ }
+ break;
+
+ case ISN_MEMBER:
+ {
+ dict_T *dict;
+ char_u *key;
+ dictitem_T *di;
+
+ // dict member: dict is at stack-2, key at stack-1
+ tv = STACK_TV_BOT(-2);
+ // no need to check for VAR_DICT, CHECKTYPE will check.
+ dict = tv->vval.v_dict;
+
+ tv = STACK_TV_BOT(-1);
+ // no need to check for VAR_STRING, 2STRING will check.
+ key = tv->vval.v_string;
+ if (key == NULL)
+ key = (char_u *)"";
+
+ if ((di = dict_find(dict, key, -1)) == NULL)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ semsg(_(e_key_not_present_in_dictionary_str), key);
+
+ // If :silent! is used we will continue, make sure the
+ // stack contents makes sense and the dict stack is
+ // updated.
+ clear_tv(tv);
+ --ectx->ec_stack.ga_len;
+ tv = STACK_TV_BOT(-1);
+ (void) dict_stack_save(tv);
+ tv->v_type = VAR_NUMBER;
+ tv->vval.v_number = 0;
+ goto on_fatal_error;
+ }
+ clear_tv(tv);
+ --ectx->ec_stack.ga_len;
+ // Put the dict used on the dict stack, it might be used by
+ // a dict function later.
+ tv = STACK_TV_BOT(-1);
+ if (dict_stack_save(tv) == FAIL)
+ goto on_fatal_error;
+ copy_tv(&di->di_tv, tv);
+ }
+ break;
+
+ // dict member with string key
+ case ISN_STRINGMEMBER:
+ {
+ dict_T *dict;
+ dictitem_T *di;
+
+ tv = STACK_TV_BOT(-1);
+ if (tv->v_type != VAR_DICT || tv->vval.v_dict == NULL)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ emsg(_(e_dictionary_required));
+ goto on_error;
+ }
+ dict = tv->vval.v_dict;
+
+ if ((di = dict_find(dict, iptr->isn_arg.string, -1))
+ == NULL)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ semsg(_(e_key_not_present_in_dictionary_str),
+ iptr->isn_arg.string);
+ goto on_error;
+ }
+ // Put the dict used on the dict stack, it might be used by
+ // a dict function later.
+ if (dict_stack_save(tv) == FAIL)
+ goto on_fatal_error;
+
+ copy_tv(&di->di_tv, tv);
+ }
+ break;
+
+ case ISN_GET_OBJ_MEMBER:
+ case ISN_GET_ITF_MEMBER:
+ {
+ tv = STACK_TV_BOT(-1);
+ if (tv->v_type != VAR_OBJECT)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ object_required_error(tv);
+ goto on_error;
+ }
+
+ object_T *obj = tv->vval.v_object;
+ if (obj == NULL)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ emsg(_(e_using_null_object));
+ goto on_error;
+ }
+
+ int idx;
+ if (iptr->isn_type == ISN_GET_OBJ_MEMBER)
+ idx = iptr->isn_arg.classmember.cm_idx;
+ else
+ {
+ idx = iptr->isn_arg.classmember.cm_idx;
+ // convert the interface index to the object index
+ idx = object_index_from_itf_index(
+ iptr->isn_arg.classmember.cm_class,
+ FALSE, idx, obj->obj_class);
+ }
+
+ // The members are located right after the object struct.
+ typval_T *mtv = ((typval_T *)(obj + 1)) + idx;
+ copy_tv(mtv, tv);
+
+ // Unreference the object after getting the member, it may
+ // be freed.
+ object_unref(obj);
+ }
+ break;
+
+ case ISN_STORE_THIS:
+ {
+ int idx = iptr->isn_arg.number;
+ object_T *obj = STACK_TV_VAR(0)->vval.v_object;
+ // the members are located right after the object struct
+ typval_T *mtv = ((typval_T *)(obj + 1)) + idx;
+ clear_tv(mtv);
+ *mtv = *STACK_TV_BOT(-1);
+ --ectx->ec_stack.ga_len;
+ }
+ break;
+
+ case ISN_CLEARDICT:
+ dict_stack_drop();
+ break;
+
+ case ISN_USEDICT:
+ {
+ typval_T *dict_tv = dict_stack_get_tv();
+
+ // Turn "dict.Func" into a partial for "Func" bound to
+ // "dict". Don't do this when "Func" is already a partial
+ // that was bound explicitly (pt_auto is FALSE).
+ tv = STACK_TV_BOT(-1);
+ if (dict_tv != NULL
+ && dict_tv->v_type == VAR_DICT
+ && dict_tv->vval.v_dict != NULL
+ && (tv->v_type == VAR_FUNC
+ || (tv->v_type == VAR_PARTIAL
+ && (tv->vval.v_partial->pt_auto
+ || tv->vval.v_partial->pt_dict == NULL))))
+ dict_tv->vval.v_dict =
+ make_partial(dict_tv->vval.v_dict, tv);
+ dict_stack_drop();
+ }
+ break;
+
+ case ISN_NEGATENR:
+ tv = STACK_TV_BOT(-1);
+ // CHECKTYPE should have checked the variable type
+ if (tv->v_type == VAR_FLOAT)
+ tv->vval.v_float = -tv->vval.v_float;
+ else
+ tv->vval.v_number = -tv->vval.v_number;
+ break;
+
+ case ISN_CHECKTYPE:
+ {
+ checktype_T *ct = &iptr->isn_arg.type;
+ int r;
+ where_T where = WHERE_INIT;
+
+ tv = STACK_TV_BOT((int)ct->ct_off);
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (ct->ct_arg_idx > 0)
+ {
+ where.wt_index = ct->ct_arg_idx;
+ where.wt_kind = ct->ct_is_var ? WT_VARIABLE : WT_ARGUMENT;
+ }
+ where.wt_func_name = ectx->ec_where.wt_func_name;
+ r = check_typval_type(ct->ct_type, tv, where);
+ if (r == FAIL)
+ goto on_error;
+
+ // number 0 is FALSE, number 1 is TRUE
+ if (tv->v_type == VAR_NUMBER
+ && ct->ct_type->tt_type == VAR_BOOL
+ && (tv->vval.v_number == 0
+ || tv->vval.v_number == 1))
+ {
+ tv->v_type = VAR_BOOL;
+ tv->vval.v_number = tv->vval.v_number
+ ? VVAL_TRUE : VVAL_FALSE;
+ }
+ }
+ break;
+
+ case ISN_CHECKLEN:
+ {
+ int min_len = iptr->isn_arg.checklen.cl_min_len;
+ list_T *list = NULL;
+
+ tv = STACK_TV_BOT(-1);
+ if (tv->v_type == VAR_LIST)
+ list = tv->vval.v_list;
+ if (list == NULL || list->lv_len < min_len
+ || (list->lv_len > min_len
+ && !iptr->isn_arg.checklen.cl_more_OK))
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ semsg(_(e_expected_nr_items_but_got_nr),
+ min_len, list == NULL ? 0 : list->lv_len);
+ goto on_error;
+ }
+ }
+ break;
+
+ case ISN_SETTYPE:
+ set_tv_type(STACK_TV_BOT(-1), iptr->isn_arg.type.ct_type);
+ break;
+
+ case ISN_2BOOL:
+ case ISN_COND2BOOL:
+ {
+ int n;
+ int error = FALSE;
+
+ if (iptr->isn_type == ISN_2BOOL)
+ {
+ tv = STACK_TV_BOT(iptr->isn_arg.tobool.offset);
+ n = tv2bool(tv);
+ if (iptr->isn_arg.tobool.invert)
+ n = !n;
+ }
+ else
+ {
+ tv = STACK_TV_BOT(-1);
+ SOURCING_LNUM = iptr->isn_lnum;
+ n = tv_get_bool_chk(tv, &error);
+ if (error)
+ goto on_error;
+ }
+ clear_tv(tv);
+ tv->v_type = VAR_BOOL;
+ tv->vval.v_number = n ? VVAL_TRUE : VVAL_FALSE;
+ }
+ break;
+
+ case ISN_2STRING:
+ case ISN_2STRING_ANY:
+ SOURCING_LNUM = iptr->isn_lnum;
+ if (do_2string(STACK_TV_BOT(iptr->isn_arg.tostring.offset),
+ iptr->isn_type == ISN_2STRING_ANY,
+ iptr->isn_arg.tostring.tolerant) == FAIL)
+ goto on_error;
+ break;
+
+ case ISN_RANGE:
+ {
+ exarg_T ea;
+ char *errormsg;
+
+ ea.line2 = 0;
+ ea.addr_count = 0;
+ ea.addr_type = ADDR_LINES;
+ ea.cmd = iptr->isn_arg.string;
+ ea.skip = FALSE;
+ if (parse_cmd_address(&ea, &errormsg, FALSE) == FAIL)
+ goto on_error;
+
+ if (GA_GROW_FAILS(&ectx->ec_stack, 1))
+ goto theend;
+ ++ectx->ec_stack.ga_len;
+ tv = STACK_TV_BOT(-1);
+ tv->v_type = VAR_NUMBER;
+ tv->v_lock = 0;
+ tv->vval.v_number = ea.line2;
+ }
+ break;
+
+ case ISN_PUT:
+ {
+ int regname = iptr->isn_arg.put.put_regname;
+ linenr_T lnum = iptr->isn_arg.put.put_lnum;
+ char_u *expr = NULL;
+ int dir = FORWARD;
+
+ if (lnum < -2)
+ {
+ // line number was put on the stack by ISN_RANGE
+ tv = STACK_TV_BOT(-1);
+ curwin->w_cursor.lnum = tv->vval.v_number;
+ if (lnum == LNUM_VARIABLE_RANGE_ABOVE)
+ dir = BACKWARD;
+ --ectx->ec_stack.ga_len;
+ }
+ else if (lnum == -2)
+ // :put! above cursor
+ dir = BACKWARD;
+ else if (lnum >= 0)
+ {
+ curwin->w_cursor.lnum = lnum;
+ if (lnum == 0)
+ // check_cursor() below will move to line 1
+ dir = BACKWARD;
+ }
+
+ if (regname == '=')
+ {
+ tv = STACK_TV_BOT(-1);
+ if (tv->v_type == VAR_STRING)
+ expr = tv->vval.v_string;
+ else
+ {
+ expr = typval2string(tv, TRUE); // allocates value
+ clear_tv(tv);
+ }
+ --ectx->ec_stack.ga_len;
+ }
+ check_cursor();
+ do_put(regname, expr, dir, 1L, PUT_LINE|PUT_CURSLINE);
+ vim_free(expr);
+ }
+ break;
+
+ case ISN_CMDMOD:
+ ectx->ec_funclocal.floc_save_cmdmod = cmdmod;
+ ectx->ec_funclocal.floc_restore_cmdmod = TRUE;
+ ectx->ec_funclocal.floc_restore_cmdmod_stacklen =
+ ectx->ec_stack.ga_len;
+ cmdmod = *iptr->isn_arg.cmdmod.cf_cmdmod;
+ apply_cmdmod(&cmdmod);
+ break;
+
+ case ISN_CMDMOD_REV:
+ // filter regprog is owned by the instruction, don't free it
+ cmdmod.cmod_filter_regmatch.regprog = NULL;
+ undo_cmdmod(&cmdmod);
+ cmdmod = ectx->ec_funclocal.floc_save_cmdmod;
+ ectx->ec_funclocal.floc_restore_cmdmod = FALSE;
+ break;
+
+ case ISN_UNPACK:
+ {
+ int count = iptr->isn_arg.unpack.unp_count;
+ int semicolon = iptr->isn_arg.unpack.unp_semicolon;
+ list_T *l;
+ listitem_T *li;
+ int i;
+
+ // Check there is a valid list to unpack.
+ tv = STACK_TV_BOT(-1);
+ if (tv->v_type != VAR_LIST)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ emsg(_(e_for_argument_must_be_sequence_of_lists));
+ goto on_error;
+ }
+ l = tv->vval.v_list;
+ if (l == NULL
+ || l->lv_len < (semicolon ? count - 1 : count))
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ emsg(_(e_list_value_does_not_have_enough_items));
+ goto on_error;
+ }
+ else if (!semicolon && l->lv_len > count)
+ {
+ SOURCING_LNUM = iptr->isn_lnum;
+ emsg(_(e_list_value_has_more_items_than_targets));
+ goto on_error;
+ }
+
+ CHECK_LIST_MATERIALIZE(l);
+ if (GA_GROW_FAILS(&ectx->ec_stack, count - 1))
+ goto theend;
+ ectx->ec_stack.ga_len += count - 1;
+
+ // Variable after semicolon gets a list with the remaining
+ // items.
+ if (semicolon)
+ {
+ list_T *rem_list =
+ list_alloc_with_items(l->lv_len - count + 1);
+
+ if (rem_list == NULL)
+ goto theend;
+ tv = STACK_TV_BOT(-count);
+ tv->vval.v_list = rem_list;
+ ++rem_list->lv_refcount;
+ tv->v_lock = 0;
+ li = l->lv_first;
+ for (i = 0; i < count - 1; ++i)
+ li = li->li_next;
+ for (i = 0; li != NULL; ++i)
+ {
+ typval_T tvcopy;
+
+ copy_tv(&li->li_tv, &tvcopy);
+ list_set_item(rem_list, i, &tvcopy);
+ li = li->li_next;
+ }
+ --count;
+ }
+
+ // Produce the values in reverse order, first item last.
+ li = l->lv_first;
+ for (i = 0; i < count; ++i)
+ {
+ tv = STACK_TV_BOT(-i - 1);
+ copy_tv(&li->li_tv, tv);
+ li = li->li_next;
+ }
+
+ list_unref(l);
+ }
+ break;
+
+ case ISN_PROF_START:
+ case ISN_PROF_END:
+ {
+#ifdef FEAT_PROFILE
+ funccall_T cookie;
+ ufunc_T *cur_ufunc =
+ (((dfunc_T *)def_functions.ga_data)
+ + ectx->ec_dfunc_idx)->df_ufunc;
+
+ cookie.fc_func = cur_ufunc;
+ if (iptr->isn_type == ISN_PROF_START)
+ {
+ func_line_start(&cookie, iptr->isn_lnum);
+ // if we get here the instruction is executed
+ func_line_exec(&cookie);
+ }
+ else
+ func_line_end(&cookie);
+#endif
+ }
+ break;
+
+ case ISN_DEBUG:
+ handle_debug(iptr, ectx);
+ break;
+
+ case ISN_SHUFFLE:
+ {
+ typval_T tmp_tv;
+ int item = iptr->isn_arg.shuffle.shfl_item;
+ int up = iptr->isn_arg.shuffle.shfl_up;
+
+ tmp_tv = *STACK_TV_BOT(-item);
+ for ( ; up > 0 && item > 1; --up)
+ {
+ *STACK_TV_BOT(-item) = *STACK_TV_BOT(-item + 1);
+ --item;
+ }
+ *STACK_TV_BOT(-item) = tmp_tv;
+ }
+ break;
+
+ case ISN_DROP:
+ --ectx->ec_stack.ga_len;
+ clear_tv(STACK_TV_BOT(0));
+ ectx->ec_where = (where_T)WHERE_INIT;
+ break;
+ }
+ continue;
+
+func_return:
+ // Restore previous function. If the frame pointer is where we started
+ // then there is none and we are done.
+ if (ectx->ec_frame_idx == ectx->ec_initial_frame_idx)
+ goto done;
+
+ if (func_return(ectx) == FAIL)
+ // only fails when out of memory
+ goto theend;
+ continue;
+
+on_error:
+ // Jump here for an error that does not require aborting execution.
+ // If "emsg_silent" is set then ignore the error, unless it was set
+ // when calling the function.
+ if (did_emsg_cumul + did_emsg == ectx->ec_did_emsg_before
+ && emsg_silent && did_emsg_def == 0)
+ {
+ // If a sequence of instructions causes an error while ":silent!"
+ // was used, restore the stack length and jump ahead to restoring
+ // the cmdmod.
+ if (ectx->ec_funclocal.floc_restore_cmdmod)
+ {
+ while (ectx->ec_stack.ga_len
+ > ectx->ec_funclocal.floc_restore_cmdmod_stacklen)
+ {
+ --ectx->ec_stack.ga_len;
+ clear_tv(STACK_TV_BOT(0));
+ }
+ while (ectx->ec_instr[ectx->ec_iidx].isn_type != ISN_CMDMOD_REV)
+ ++ectx->ec_iidx;
+ }
+ continue;
+ }
+on_fatal_error:
+ // Jump here for an error that messes up the stack.
+ // If we are not inside a try-catch started here, abort execution.
+ if (trylevel <= ectx->ec_trylevel_at_start)
+ goto theend;
+ }
+
+done:
+ ret = OK;
+theend:
+ may_invoke_defer_funcs(ectx);
+
+ dict_stack_clear(dict_stack_len_at_start);
+ ectx->ec_trylevel_at_start = save_trylevel_at_start;
+ return ret;
+}
+
+/*
+ * Execute the instructions from a VAR_INSTR typval and put the result in
+ * "rettv".
+ * Return OK or FAIL.
+ */
+ int
+exe_typval_instr(typval_T *tv, typval_T *rettv)
+{
+ ectx_T *ectx = tv->vval.v_instr->instr_ectx;
+ isn_T *save_instr = ectx->ec_instr;
+ int save_iidx = ectx->ec_iidx;
+ int res;
+
+ // Initialize rettv so that it is safe for caller to invoke clear_tv(rettv)
+ // even when the compilation fails.
+ rettv->v_type = VAR_UNKNOWN;
+
+ ectx->ec_instr = tv->vval.v_instr->instr_instr;
+ res = exec_instructions(ectx);
+ if (res == OK)
+ {
+ *rettv = *STACK_TV_BOT(-1);
+ --ectx->ec_stack.ga_len;
+ }
+
+ ectx->ec_instr = save_instr;
+ ectx->ec_iidx = save_iidx;
+
+ return res;
+}
+
+/*
+ * Execute the instructions from an ISN_SUBSTITUTE command, which are in
+ * "substitute_instr".
+ */
+ char_u *
+exe_substitute_instr(void)
+{
+ ectx_T *ectx = substitute_instr->subs_ectx;
+ isn_T *save_instr = ectx->ec_instr;
+ int save_iidx = ectx->ec_iidx;
+ char_u *res;
+
+ ectx->ec_instr = substitute_instr->subs_instr;
+ if (exec_instructions(ectx) == OK)
+ {
+ typval_T *tv = STACK_TV_BOT(-1);
+
+ res = typval2string(tv, TRUE);
+ --ectx->ec_stack.ga_len;
+ clear_tv(tv);
+ }
+ else
+ {
+ substitute_instr->subs_status = FAIL;
+ res = vim_strsave((char_u *)"");
+ }
+
+ ectx->ec_instr = save_instr;
+ ectx->ec_iidx = save_iidx;
+
+ return res;
+}
+
+/*
+ * Call a "def" function from old Vim script.
+ * Return OK or FAIL.
+ */
+ int
+call_def_function(
+ ufunc_T *ufunc,
+ int argc_arg, // nr of arguments
+ typval_T *argv, // arguments
+ int flags, // DEF_ flags
+ partial_T *partial, // optional partial for context
+ object_T *object, // object, e.g. for this.Func()
+ funccall_T *funccal,
+ typval_T *rettv) // return value
+{
+ ectx_T ectx; // execution context
+ int argc = argc_arg;
+ int partial_argc = partial == NULL
+ || (flags & DEF_USE_PT_ARGV) == 0
+ ? 0 : partial->pt_argc;
+ int total_argc = argc + partial_argc;
+ typval_T *tv;
+ int idx;
+ int ret = FAIL;
+ int defcount = ufunc->uf_args.ga_len - total_argc;
+ sctx_T save_current_sctx = current_sctx;
+ int did_emsg_before = did_emsg_cumul + did_emsg;
+ int save_suppress_errthrow = suppress_errthrow;
+ msglist_T **saved_msg_list = NULL;
+ msglist_T *private_msg_list = NULL;
+ int save_emsg_silent_def = emsg_silent_def;
+ int save_did_emsg_def = did_emsg_def;
+ int orig_funcdepth;
+ int orig_nesting_level = ex_nesting_level;
+
+// Get pointer to item in the stack.
+#undef STACK_TV
+#define STACK_TV(idx) (((typval_T *)ectx.ec_stack.ga_data) + idx)
+
+// Get pointer to item at the bottom of the stack, -1 is the bottom.
+#undef STACK_TV_BOT
+#define STACK_TV_BOT(idx) (((typval_T *)ectx.ec_stack.ga_data) + ectx.ec_stack.ga_len + idx)
+
+// Get pointer to a local variable on the stack. Negative for arguments.
+#undef STACK_TV_VAR
+#define STACK_TV_VAR(idx) (((typval_T *)ectx.ec_stack.ga_data) + ectx.ec_frame_idx + STACK_FRAME_SIZE + idx)
+
+ if (ufunc->uf_def_status == UF_NOT_COMPILED
+ || ufunc->uf_def_status == UF_COMPILE_ERROR
+ || (func_needs_compiling(ufunc, get_compile_type(ufunc))
+ && compile_def_function(ufunc, FALSE,
+ get_compile_type(ufunc), NULL) == FAIL))
+ {
+ if (did_emsg_cumul + did_emsg == did_emsg_before)
+ semsg(_(e_function_is_not_compiled_str),
+ printable_func_name(ufunc));
+ return FAIL;
+ }
+
+ {
+ // Check the function was really compiled.
+ dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data)
+ + ufunc->uf_dfunc_idx;
+ if (dfunc->df_ufunc == NULL)
+ {
+ semsg(_(e_function_was_deleted_str), printable_func_name(ufunc));
+ return FAIL;
+ }
+ if (INSTRUCTIONS(dfunc) == NULL)
+ {
+ iemsg("using call_def_function() on not compiled function");
+ return FAIL;
+ }
+ }
+
+ // If depth of calling is getting too high, don't execute the function.
+ orig_funcdepth = funcdepth_get();
+ if (funcdepth_increment() == FAIL)
+ return FAIL;
+
+ CLEAR_FIELD(ectx);
+ ectx.ec_dfunc_idx = ufunc->uf_dfunc_idx;
+ ga_init2(&ectx.ec_stack, sizeof(typval_T), 500);
+ if (GA_GROW_FAILS(&ectx.ec_stack, 20))
+ {
+ funcdepth_decrement();
+ return FAIL;
+ }
+ ga_init2(&ectx.ec_trystack, sizeof(trycmd_T), 10);
+ ga_init2(&ectx.ec_funcrefs, sizeof(partial_T *), 10);
+ ectx.ec_did_emsg_before = did_emsg_before;
+ ++ex_nesting_level;
+
+ idx = total_argc - ufunc->uf_args.ga_len;
+ if (idx > 0 && ufunc->uf_va_name == NULL)
+ {
+ semsg(NGETTEXT(e_one_argument_too_many, e_nr_arguments_too_many,
+ idx), idx);
+ goto failed_early;
+ }
+ idx = total_argc - ufunc->uf_args.ga_len + ufunc->uf_def_args.ga_len;
+ if (idx < 0)
+ {
+ semsg(NGETTEXT(e_one_argument_too_few, e_nr_arguments_too_few,
+ -idx), -idx);
+ goto failed_early;
+ }
+
+ // Put values from the partial and arguments on the stack, but no more than
+ // what the function expects. A lambda can be called with more arguments
+ // than it uses.
+ for (idx = 0; idx < total_argc
+ && (ufunc->uf_va_name != NULL || idx < ufunc->uf_args.ga_len);
+ ++idx)
+ {
+ int argv_idx = idx - partial_argc;
+
+ tv = idx < partial_argc ? partial->pt_argv + idx : argv + argv_idx;
+ if (idx >= ufunc->uf_args.ga_len - ufunc->uf_def_args.ga_len
+ && tv->v_type == VAR_SPECIAL
+ && tv->vval.v_number == VVAL_NONE)
+ {
+ // Use the default value.
+ STACK_TV_BOT(0)->v_type = VAR_UNKNOWN;
+ }
+ else
+ {
+ int done = FALSE;
+ if (ufunc->uf_arg_types != NULL && idx < ufunc->uf_args.ga_len)
+ {
+ type_T *expected = ufunc->uf_arg_types[idx];
+ if (expected->tt_type == VAR_FLOAT && tv->v_type == VAR_NUMBER)
+ {
+ // When a float is expected and a number was given, convert
+ // the value.
+ STACK_TV_BOT(0)->v_type = VAR_FLOAT;
+ STACK_TV_BOT(0)->v_lock = 0;
+ STACK_TV_BOT(0)->vval.v_float = tv->vval.v_number;
+ done = TRUE;
+ }
+ else if (check_typval_arg_type(expected, tv,
+ NULL, argv_idx + 1) == FAIL)
+ goto failed_early;
+ }
+ if (!done)
+ copy_tv(tv, STACK_TV_BOT(0));
+ }
+ ++ectx.ec_stack.ga_len;
+ }
+
+ // Turn varargs into a list. Empty list if no args.
+ if (ufunc->uf_va_name != NULL)
+ {
+ int vararg_count = argc - ufunc->uf_args.ga_len;
+
+ if (vararg_count < 0)
+ vararg_count = 0;
+ else
+ argc -= vararg_count;
+ if (exe_newlist(vararg_count, &ectx) == FAIL)
+ goto failed_early;
+
+ // Check the type of the list items.
+ tv = STACK_TV_BOT(-1);
+ if (ufunc->uf_va_type != NULL
+ && ufunc->uf_va_type != &t_list_any
+ && ufunc->uf_va_type->tt_member != &t_any
+ && tv->vval.v_list != NULL)
+ {
+ type_T *expected = ufunc->uf_va_type->tt_member;
+ listitem_T *li = tv->vval.v_list->lv_first;
+
+ for (idx = 0; idx < vararg_count; ++idx)
+ {
+ if (check_typval_arg_type(expected, &li->li_tv,
+ NULL, argc + idx + 1) == FAIL)
+ goto failed_early;
+ li = li->li_next;
+ }
+ }
+
+ if (defcount > 0)
+ // Move varargs list to below missing default arguments.
+ *STACK_TV_BOT(defcount - 1) = *STACK_TV_BOT(-1);
+ --ectx.ec_stack.ga_len;
+ }
+
+ // Make space for omitted arguments, will store default value below.
+ // Any varargs list goes after them.
+ if (defcount > 0)
+ for (idx = 0; idx < defcount; ++idx)
+ {
+ STACK_TV_BOT(0)->v_type = VAR_UNKNOWN;
+ ++ectx.ec_stack.ga_len;
+ }
+ if (ufunc->uf_va_name != NULL)
+ ++ectx.ec_stack.ga_len;
+
+ // Frame pointer points to just after arguments.
+ ectx.ec_frame_idx = ectx.ec_stack.ga_len;
+ ectx.ec_initial_frame_idx = ectx.ec_frame_idx;
+
+ {
+ dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data)
+ + ufunc->uf_dfunc_idx;
+ ufunc_T *base_ufunc = dfunc->df_ufunc;
+
+ // "uf_partial" is on the ufunc that "df_ufunc" points to, as is done
+ // by copy_lambda_to_global_func().
+ if (partial != NULL || base_ufunc->uf_partial != NULL)
+ {
+ ectx.ec_outer_ref = ALLOC_CLEAR_ONE(outer_ref_T);
+ if (ectx.ec_outer_ref == NULL)
+ goto failed_early;
+ if (partial != NULL)
+ {
+ outer_T *outer = get_pt_outer(partial);
+
+ if (outer->out_stack == NULL && outer->out_loop_size == 0)
+ {
+ // no stack was set
+ if (current_ectx != NULL)
+ {
+ if (current_ectx->ec_outer_ref != NULL
+ && current_ectx->ec_outer_ref->or_outer != NULL)
+ ectx.ec_outer_ref->or_outer =
+ current_ectx->ec_outer_ref->or_outer;
+ }
+ // else: should there be an error here?
+ }
+ else
+ {
+ ectx.ec_outer_ref->or_outer = outer;
+ ++partial->pt_refcount;
+ ectx.ec_outer_ref->or_partial = partial;
+ }
+ }
+ else
+ {
+ ectx.ec_outer_ref->or_outer = &base_ufunc->uf_partial->pt_outer;
+ ++base_ufunc->uf_partial->pt_refcount;
+ ectx.ec_outer_ref->or_partial = base_ufunc->uf_partial;
+ }
+ }
+ }
+
+ // dummy frame entries
+ for (idx = 0; idx < STACK_FRAME_SIZE; ++idx)
+ {
+ STACK_TV(ectx.ec_stack.ga_len)->v_type = VAR_UNKNOWN;
+ ++ectx.ec_stack.ga_len;
+ }
+
+ {
+ // Reserve space for local variables and any closure reference count.
+ dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data)
+ + ufunc->uf_dfunc_idx;
+
+ // Initialize variables to zero. That avoids having to generate
+ // initializing instructions for "var nr: number", "var x: any", etc.
+ for (idx = 0; idx < dfunc->df_varcount; ++idx)
+ {
+ STACK_TV_VAR(idx)->v_type = VAR_NUMBER;
+ STACK_TV_VAR(idx)->vval.v_number = 0;
+ }
+ ectx.ec_stack.ga_len += dfunc->df_varcount;
+
+ if (object != NULL)
+ {
+ // the object is always the variable at index zero
+ tv = STACK_TV_VAR(0);
+ tv->v_type = VAR_OBJECT;
+ tv->vval.v_object = object;
+ }
+
+ if (dfunc->df_has_closure)
+ {
+ // Initialize the variable that counts how many closures were
+ // created. This is used in handle_closure_in_use().
+ STACK_TV_VAR(idx)->v_type = VAR_NUMBER;
+ STACK_TV_VAR(idx)->vval.v_number = 0;
+ ++ectx.ec_stack.ga_len;
+ }
+
+ ectx.ec_instr = INSTRUCTIONS(dfunc);
+ }
+
+ // Store the execution context in funccal, used by invoke_all_defer().
+ if (funccal != NULL)
+ funccal->fc_ectx = &ectx;
+
+ // Following errors are in the function, not the caller.
+ // Commands behave like vim9script.
+ estack_push_ufunc(ufunc, 1);
+ current_sctx = ufunc->uf_script_ctx;
+ current_sctx.sc_version = SCRIPT_VERSION_VIM9;
+
+ // Use a specific location for storing error messages to be converted to an
+ // exception.
+ saved_msg_list = msg_list;
+ msg_list = &private_msg_list;
+
+ // Do turn errors into exceptions.
+ suppress_errthrow = FALSE;
+
+ // Do not delete the function while executing it.
+ ++ufunc->uf_calls;
+
+ // When ":silent!" was used before calling then we still abort the
+ // function. If ":silent!" is used in the function then we don't.
+ emsg_silent_def = emsg_silent;
+ did_emsg_def = 0;
+
+ ectx.ec_where = (where_T)WHERE_INIT;
+
+ /*
+ * Execute the instructions until done.
+ */
+ ret = exec_instructions(&ectx);
+ if (ret == OK)
+ {
+ // function finished, get result from the stack.
+ if (ufunc->uf_ret_type == &t_void)
+ {
+ rettv->v_type = VAR_VOID;
+ }
+ else
+ {
+ tv = STACK_TV_BOT(-1);
+ *rettv = *tv;
+ tv->v_type = VAR_UNKNOWN;
+ }
+ }
+
+ // When failed need to unwind the call stack.
+ unwind_def_callstack(&ectx);
+
+ // Deal with any remaining closures, they may be in use somewhere.
+ if (ectx.ec_funcrefs.ga_len > 0)
+ {
+ handle_closure_in_use(&ectx, FALSE);
+ ga_clear(&ectx.ec_funcrefs);
+ }
+
+ estack_pop();
+ current_sctx = save_current_sctx;
+
+ if (--ufunc->uf_calls <= 0 && ufunc->uf_refcount <= 0)
+ // Function was unreferenced while being used, free it now.
+ func_clear_free(ufunc, FALSE);
+
+ if (*msg_list != NULL && saved_msg_list != NULL)
+ {
+ msglist_T **plist = saved_msg_list;
+
+ // Append entries from the current msg_list (uncaught exceptions) to
+ // the saved msg_list.
+ while (*plist != NULL)
+ plist = &(*plist)->next;
+
+ *plist = *msg_list;
+ }
+ msg_list = saved_msg_list;
+
+ if (ectx.ec_funclocal.floc_restore_cmdmod)
+ {
+ cmdmod.cmod_filter_regmatch.regprog = NULL;
+ undo_cmdmod(&cmdmod);
+ cmdmod = ectx.ec_funclocal.floc_save_cmdmod;
+ }
+ emsg_silent_def = save_emsg_silent_def;
+ did_emsg_def += save_did_emsg_def;
+
+failed_early:
+ // Free all arguments and local variables.
+ for (idx = 0; idx < ectx.ec_stack.ga_len; ++idx)
+ {
+ tv = STACK_TV(idx);
+ if (tv->v_type != VAR_NUMBER && tv->v_type != VAR_UNKNOWN)
+ clear_tv(tv);
+ }
+ ex_nesting_level = orig_nesting_level;
+
+ vim_free(ectx.ec_stack.ga_data);
+ vim_free(ectx.ec_trystack.ga_data);
+ if (ectx.ec_outer_ref != NULL)
+ {
+ if (ectx.ec_outer_ref->or_outer_allocated)
+ vim_free(ectx.ec_outer_ref->or_outer);
+ partial_unref(ectx.ec_outer_ref->or_partial);
+ vim_free(ectx.ec_outer_ref);
+ }
+
+ // Not sure if this is necessary.
+ suppress_errthrow = save_suppress_errthrow;
+
+ if (ret != OK && did_emsg_cumul + did_emsg == did_emsg_before
+ && !need_rethrow)
+ semsg(_(e_unknown_error_while_executing_str),
+ printable_func_name(ufunc));
+ funcdepth_restore(orig_funcdepth);
+ return ret;
+}
+
+/*
+ * Called when a def function has finished (possibly failed).
+ * Invoke all the function returns to clean up and invoke deferred functions,
+ * except the toplevel one.
+ */
+ void
+unwind_def_callstack(ectx_T *ectx)
+{
+ while (ectx->ec_frame_idx != ectx->ec_initial_frame_idx)
+ func_return(ectx);
+}
+
+/*
+ * Invoke any deferred functions for the top function in "ectx".
+ */
+ void
+may_invoke_defer_funcs(ectx_T *ectx)
+{
+ dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data) + ectx->ec_dfunc_idx;
+
+ if (dfunc->df_defer_var_idx > 0)
+ invoke_defer_funcs(ectx);
+}
+
+/*
+ * Return loopvarinfo in a printable form in allocated memory.
+ */
+ static char_u *
+printable_loopvarinfo(loopvarinfo_T *lvi)
+{
+ garray_T ga;
+ int depth;
+
+ ga_init2(&ga, 1, 100);
+ for (depth = 0; depth < lvi->lvi_depth; ++depth)
+ {
+ if (ga_grow(&ga, 50) == FAIL)
+ break;
+ if (lvi->lvi_loop[depth].var_idx == 0)
+ STRCPY((char *)ga.ga_data + ga.ga_len, " -");
+ else
+ vim_snprintf((char *)ga.ga_data + ga.ga_len, 50, " $%d-$%d",
+ lvi->lvi_loop[depth].var_idx,
+ lvi->lvi_loop[depth].var_idx
+ + lvi->lvi_loop[depth].var_count - 1);
+ ga.ga_len = (int)STRLEN(ga.ga_data);
+ }
+ return ga.ga_data;
+}
+
+/*
+ * List instructions "instr" up to "instr_count" or until ISN_FINISH.
+ * "ufunc" has the source lines, NULL for the instructions of ISN_SUBSTITUTE.
+ * "pfx" is prefixed to every line.
+ */
+ static void
+list_instructions(char *pfx, isn_T *instr, int instr_count, ufunc_T *ufunc)
+{
+ int line_idx = 0;
+ int prev_current = 0;
+ int current;
+ int def_arg_idx = 0;
+
+ for (current = 0; current < instr_count; ++current)
+ {
+ isn_T *iptr = &instr[current];
+ char *line;
+
+ if (ufunc != NULL)
+ {
+ while (line_idx < iptr->isn_lnum
+ && line_idx < ufunc->uf_lines.ga_len)
+ {
+ if (current > prev_current)
+ {
+ msg_puts("\n\n");
+ prev_current = current;
+ }
+ line = ((char **)ufunc->uf_lines.ga_data)[line_idx++];
+ if (line != NULL)
+ msg(line);
+ }
+ if (iptr->isn_type == ISN_JUMP_IF_ARG_SET)
+ {
+ int first_def_arg = ufunc->uf_args.ga_len
+ - ufunc->uf_def_args.ga_len;
+
+ if (def_arg_idx > 0)
+ msg_puts("\n\n");
+ msg_start();
+ msg_puts(" ");
+ msg_puts(((char **)(ufunc->uf_args.ga_data))[
+ first_def_arg + def_arg_idx]);
+ msg_puts(" = ");
+ msg_puts(((char **)(ufunc->uf_def_args.ga_data))[def_arg_idx++]);
+ msg_clr_eos();
+ msg_end();
+ }
+ }
+
+ switch (iptr->isn_type)
+ {
+ case ISN_CONSTRUCT:
+ smsg("%s%4d NEW %s size %d", pfx, current,
+ iptr->isn_arg.construct.construct_class->class_name,
+ (int)iptr->isn_arg.construct.construct_size);
+ break;
+ case ISN_EXEC:
+ smsg("%s%4d EXEC %s", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_EXEC_SPLIT:
+ smsg("%s%4d EXEC_SPLIT %s", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_EXECRANGE:
+ smsg("%s%4d EXECRANGE %s", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_LEGACY_EVAL:
+ smsg("%s%4d EVAL legacy %s", pfx, current,
+ iptr->isn_arg.string);
+ break;
+ case ISN_REDIRSTART:
+ smsg("%s%4d REDIR", pfx, current);
+ break;
+ case ISN_REDIREND:
+ smsg("%s%4d REDIR END%s", pfx, current,
+ iptr->isn_arg.number ? " append" : "");
+ break;
+ case ISN_CEXPR_AUCMD:
+#ifdef FEAT_QUICKFIX
+ smsg("%s%4d CEXPR pre %s", pfx, current,
+ cexpr_get_auname(iptr->isn_arg.number));
+#endif
+ break;
+ case ISN_CEXPR_CORE:
+#ifdef FEAT_QUICKFIX
+ {
+ cexprref_T *cer = iptr->isn_arg.cexpr.cexpr_ref;
+
+ smsg("%s%4d CEXPR core %s%s \"%s\"", pfx, current,
+ cexpr_get_auname(cer->cer_cmdidx),
+ cer->cer_forceit ? "!" : "",
+ cer->cer_cmdline);
+ }
+#endif
+ break;
+ case ISN_INSTR:
+ smsg("%s%4d INSTR", pfx, current);
+ list_instructions(" ", iptr->isn_arg.instr, INT_MAX, NULL);
+ msg(" -------------");
+ break;
+ case ISN_SOURCE:
+ {
+ scriptitem_T *si = SCRIPT_ITEM(iptr->isn_arg.number);
+
+ smsg("%s%4d SOURCE %s", pfx, current, si->sn_name);
+ }
+ break;
+ case ISN_SUBSTITUTE:
+ {
+ subs_T *subs = &iptr->isn_arg.subs;
+
+ smsg("%s%4d SUBSTITUTE %s", pfx, current, subs->subs_cmd);
+ list_instructions(" ", subs->subs_instr, INT_MAX, NULL);
+ msg(" -------------");
+ }
+ break;
+ case ISN_EXECCONCAT:
+ smsg("%s%4d EXECCONCAT %lld", pfx, current,
+ (varnumber_T)iptr->isn_arg.number);
+ break;
+ case ISN_ECHO:
+ {
+ echo_T *echo = &iptr->isn_arg.echo;
+
+ smsg("%s%4d %s %d", pfx, current,
+ echo->echo_with_white ? "ECHO" : "ECHON",
+ echo->echo_count);
+ }
+ break;
+ case ISN_EXECUTE:
+ smsg("%s%4d EXECUTE %lld", pfx, current,
+ (varnumber_T)(iptr->isn_arg.number));
+ break;
+ case ISN_ECHOMSG:
+ smsg("%s%4d ECHOMSG %lld", pfx, current,
+ (varnumber_T)(iptr->isn_arg.number));
+ break;
+ case ISN_ECHOWINDOW:
+ if (iptr->isn_arg.echowin.ewin_time > 0)
+ smsg("%s%4d ECHOWINDOW %d (%ld sec)", pfx, current,
+ iptr->isn_arg.echowin.ewin_count,
+ iptr->isn_arg.echowin.ewin_time);
+ else
+ smsg("%s%4d ECHOWINDOW %d", pfx, current,
+ iptr->isn_arg.echowin.ewin_count);
+ break;
+ case ISN_ECHOCONSOLE:
+ smsg("%s%4d ECHOCONSOLE %lld", pfx, current,
+ (varnumber_T)(iptr->isn_arg.number));
+ break;
+ case ISN_ECHOERR:
+ smsg("%s%4d ECHOERR %lld", pfx, current,
+ (varnumber_T)(iptr->isn_arg.number));
+ break;
+ case ISN_LOAD:
+ {
+ if (iptr->isn_arg.number < 0)
+ smsg("%s%4d LOAD arg[%lld]", pfx, current,
+ (varnumber_T)(iptr->isn_arg.number
+ + STACK_FRAME_SIZE));
+ else
+ smsg("%s%4d LOAD $%lld", pfx, current,
+ (varnumber_T)(iptr->isn_arg.number));
+ }
+ break;
+ case ISN_LOADOUTER:
+ {
+ isn_outer_T *outer = &iptr->isn_arg.outer;
+
+ if (outer->outer_idx < 0)
+ smsg("%s%4d LOADOUTER level %d arg[%d]", pfx, current,
+ outer->outer_depth,
+ outer->outer_idx + STACK_FRAME_SIZE);
+ else if (outer->outer_depth < 0)
+ smsg("%s%4d LOADOUTER $%d in loop level %d",
+ pfx, current,
+ outer->outer_idx,
+ -outer->outer_depth);
+ else
+ smsg("%s%4d LOADOUTER level %d $%d", pfx, current,
+ outer->outer_depth,
+ outer->outer_idx);
+ }
+ break;
+ case ISN_LOADV:
+ smsg("%s%4d LOADV v:%s", pfx, current,
+ get_vim_var_name(iptr->isn_arg.number));
+ break;
+ case ISN_LOADSCRIPT:
+ {
+ scriptref_T *sref = iptr->isn_arg.script.scriptref;
+ scriptitem_T *si = SCRIPT_ITEM(sref->sref_sid);
+ svar_T *sv;
+
+ sv = get_script_svar(sref, -1);
+ if (sv == NULL)
+ smsg("%s%4d LOADSCRIPT [deleted] from %s",
+ pfx, current, si->sn_name);
+ else
+ smsg("%s%4d LOADSCRIPT %s-%d from %s", pfx, current,
+ sv->sv_name,
+ sref->sref_idx,
+ si->sn_name);
+ }
+ break;
+ case ISN_LOADS:
+ case ISN_LOADEXPORT:
+ {
+ scriptitem_T *si = SCRIPT_ITEM(
+ iptr->isn_arg.loadstore.ls_sid);
+
+ smsg("%s%4d %s s:%s from %s", pfx, current,
+ iptr->isn_type == ISN_LOADS ? "LOADS"
+ : "LOADEXPORT",
+ iptr->isn_arg.loadstore.ls_name, si->sn_name);
+ }
+ break;
+ case ISN_LOADAUTO:
+ smsg("%s%4d LOADAUTO %s", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_LOADG:
+ smsg("%s%4d LOADG g:%s", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_LOADB:
+ smsg("%s%4d LOADB b:%s", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_LOADW:
+ smsg("%s%4d LOADW w:%s", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_LOADT:
+ smsg("%s%4d LOADT t:%s", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_LOADGDICT:
+ smsg("%s%4d LOAD g:", pfx, current);
+ break;
+ case ISN_LOADBDICT:
+ smsg("%s%4d LOAD b:", pfx, current);
+ break;
+ case ISN_LOADWDICT:
+ smsg("%s%4d LOAD w:", pfx, current);
+ break;
+ case ISN_LOADTDICT:
+ smsg("%s%4d LOAD t:", pfx, current);
+ break;
+ case ISN_LOADOPT:
+ smsg("%s%4d LOADOPT %s", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_LOADENV:
+ smsg("%s%4d LOADENV %s", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_LOADREG:
+ smsg("%s%4d LOADREG @%c", pfx, current,
+ (int)(iptr->isn_arg.number));
+ break;
+
+ case ISN_STORE:
+ if (iptr->isn_arg.number < 0)
+ smsg("%s%4d STORE arg[%lld]", pfx, current,
+ iptr->isn_arg.number + STACK_FRAME_SIZE);
+ else
+ smsg("%s%4d STORE $%lld", pfx, current,
+ iptr->isn_arg.number);
+ break;
+ case ISN_STOREOUTER:
+ {
+ isn_outer_T *outer = &iptr->isn_arg.outer;
+
+ if (outer->outer_depth == OUTER_LOOP_DEPTH)
+ smsg("%s%4d STOREOUTER level 1 $%d in loop",
+ pfx, current, outer->outer_idx);
+ else
+ smsg("%s%4d STOREOUTER level %d $%d", pfx, current,
+ outer->outer_depth, outer->outer_idx);
+ }
+ break;
+ case ISN_STOREV:
+ smsg("%s%4d STOREV v:%s", pfx, current,
+ get_vim_var_name(iptr->isn_arg.number));
+ break;
+ case ISN_STOREAUTO:
+ smsg("%s%4d STOREAUTO %s", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_STOREG:
+ smsg("%s%4d STOREG %s", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_STOREB:
+ smsg("%s%4d STOREB %s", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_STOREW:
+ smsg("%s%4d STOREW %s", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_STORET:
+ smsg("%s%4d STORET %s", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_STORES:
+ case ISN_STOREEXPORT:
+ {
+ scriptitem_T *si = SCRIPT_ITEM(
+ iptr->isn_arg.loadstore.ls_sid);
+
+ smsg("%s%4d %s %s in %s", pfx, current,
+ iptr->isn_type == ISN_STORES
+ ? "STORES" : "STOREEXPORT",
+ iptr->isn_arg.loadstore.ls_name, si->sn_name);
+ }
+ break;
+ case ISN_STORESCRIPT:
+ {
+ scriptref_T *sref = iptr->isn_arg.script.scriptref;
+ scriptitem_T *si = SCRIPT_ITEM(sref->sref_sid);
+ svar_T *sv;
+
+ sv = get_script_svar(sref, -1);
+ if (sv == NULL)
+ smsg("%s%4d STORESCRIPT [deleted] in %s",
+ pfx, current, si->sn_name);
+ else
+ smsg("%s%4d STORESCRIPT %s-%d in %s", pfx, current,
+ sv->sv_name,
+ sref->sref_idx,
+ si->sn_name);
+ }
+ break;
+ case ISN_STOREOPT:
+ case ISN_STOREFUNCOPT:
+ smsg("%s%4d %s &%s", pfx, current,
+ iptr->isn_type == ISN_STOREOPT ? "STOREOPT" : "STOREFUNCOPT",
+ iptr->isn_arg.storeopt.so_name);
+ break;
+ case ISN_STOREENV:
+ smsg("%s%4d STOREENV $%s", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_STOREREG:
+ smsg("%s%4d STOREREG @%c", pfx, current,
+ (int)iptr->isn_arg.number);
+ break;
+ case ISN_STORENR:
+ smsg("%s%4d STORE %lld in $%d", pfx, current,
+ iptr->isn_arg.storenr.stnr_val,
+ iptr->isn_arg.storenr.stnr_idx);
+ break;
+
+ case ISN_STOREINDEX:
+ smsg("%s%4d STOREINDEX %s", pfx, current,
+ vartype_name(iptr->isn_arg.storeindex.si_vartype));
+ break;
+
+ case ISN_STORERANGE:
+ smsg("%s%4d STORERANGE", pfx, current);
+ break;
+
+ case ISN_LOAD_CLASSMEMBER:
+ case ISN_STORE_CLASSMEMBER:
+ {
+ class_T *cl = iptr->isn_arg.classmember.cm_class;
+ int idx = iptr->isn_arg.classmember.cm_idx;
+ ocmember_T *ocm = &cl->class_class_members[idx];
+ smsg("%s%4d %s CLASSMEMBER %s.%s", pfx, current,
+ iptr->isn_type == ISN_LOAD_CLASSMEMBER
+ ? "LOAD" : "STORE",
+ cl->class_name, ocm->ocm_name);
+ }
+ break;
+
+ // constants
+ case ISN_PUSHNR:
+ smsg("%s%4d PUSHNR %lld", pfx, current,
+ (varnumber_T)(iptr->isn_arg.number));
+ break;
+ case ISN_PUSHBOOL:
+ case ISN_PUSHSPEC:
+ smsg("%s%4d PUSH %s", pfx, current,
+ get_var_special_name(iptr->isn_arg.number));
+ break;
+ case ISN_PUSHF:
+ smsg("%s%4d PUSHF %g", pfx, current, iptr->isn_arg.fnumber);
+ break;
+ case ISN_PUSHS:
+ smsg("%s%4d PUSHS \"%s\"", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_PUSHBLOB:
+ {
+ char_u *r;
+ char_u numbuf[NUMBUFLEN];
+ char_u *tofree;
+
+ r = blob2string(iptr->isn_arg.blob, &tofree, numbuf);
+ smsg("%s%4d PUSHBLOB %s", pfx, current, r);
+ vim_free(tofree);
+ }
+ break;
+ case ISN_PUSHFUNC:
+ {
+ char *name = (char *)iptr->isn_arg.string;
+
+ smsg("%s%4d PUSHFUNC \"%s\"", pfx, current,
+ name == NULL ? "[none]" : name);
+ }
+ break;
+ case ISN_PUSHCHANNEL:
+#ifdef FEAT_JOB_CHANNEL
+ smsg("%s%4d PUSHCHANNEL 0", pfx, current);
+#endif
+ break;
+ case ISN_PUSHJOB:
+#ifdef FEAT_JOB_CHANNEL
+ smsg("%s%4d PUSHJOB \"no process\"", pfx, current);
+#endif
+ break;
+ case ISN_PUSHOBJ:
+ smsg("%s%4d PUSHOBJ null", pfx, current);
+ break;
+ case ISN_PUSHCLASS:
+ smsg("%s%4d PUSHCLASS %s", pfx, current,
+ iptr->isn_arg.classarg == NULL ? "null"
+ : (char *)iptr->isn_arg.classarg->class_name);
+ break;
+ case ISN_PUSHEXC:
+ smsg("%s%4d PUSH v:exception", pfx, current);
+ break;
+ case ISN_AUTOLOAD:
+ smsg("%s%4d AUTOLOAD %s", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_UNLET:
+ smsg("%s%4d UNLET%s %s", pfx, current,
+ iptr->isn_arg.unlet.ul_forceit ? "!" : "",
+ iptr->isn_arg.unlet.ul_name);
+ break;
+ case ISN_UNLETENV:
+ smsg("%s%4d UNLETENV%s $%s", pfx, current,
+ iptr->isn_arg.unlet.ul_forceit ? "!" : "",
+ iptr->isn_arg.unlet.ul_name);
+ break;
+ case ISN_UNLETINDEX:
+ smsg("%s%4d UNLETINDEX", pfx, current);
+ break;
+ case ISN_UNLETRANGE:
+ smsg("%s%4d UNLETRANGE", pfx, current);
+ break;
+ case ISN_LOCKUNLOCK:
+ smsg("%s%4d LOCKUNLOCK %s", pfx, current, iptr->isn_arg.string);
+ break;
+ case ISN_LOCKCONST:
+ smsg("%s%4d LOCKCONST", pfx, current);
+ break;
+ case ISN_NEWLIST:
+ smsg("%s%4d NEWLIST size %lld", pfx, current,
+ (varnumber_T)(iptr->isn_arg.number));
+ break;
+ case ISN_NEWDICT:
+ smsg("%s%4d NEWDICT size %lld", pfx, current,
+ (varnumber_T)(iptr->isn_arg.number));
+ break;
+ case ISN_NEWPARTIAL:
+ smsg("%s%4d NEWPARTIAL", pfx, current);
+ break;
+
+ // function call
+ case ISN_BCALL:
+ {
+ cbfunc_T *cbfunc = &iptr->isn_arg.bfunc;
+
+ smsg("%s%4d BCALL %s(argc %d)", pfx, current,
+ internal_func_name(cbfunc->cbf_idx),
+ cbfunc->cbf_argcount);
+ }
+ break;
+ case ISN_DCALL:
+ {
+ cdfunc_T *cdfunc = &iptr->isn_arg.dfunc;
+ dfunc_T *df = ((dfunc_T *)def_functions.ga_data)
+ + cdfunc->cdf_idx;
+
+ smsg("%s%4d DCALL %s(argc %d)", pfx, current,
+ printable_func_name(df->df_ufunc),
+ cdfunc->cdf_argcount);
+ }
+ break;
+ case ISN_METHODCALL:
+ {
+ cmfunc_T *mfunc = iptr->isn_arg.mfunc;
+
+ smsg("%s%4d METHODCALL %s.%s(argc %d)", pfx, current,
+ mfunc->cmf_itf->class_name,
+ mfunc->cmf_itf->class_obj_methods[
+ mfunc->cmf_idx]->uf_name,
+ mfunc->cmf_argcount);
+ }
+ break;
+ case ISN_UCALL:
+ {
+ cufunc_T *cufunc = &iptr->isn_arg.ufunc;
+
+ smsg("%s%4d UCALL %s(argc %d)", pfx, current,
+ cufunc->cuf_name, cufunc->cuf_argcount);
+ }
+ break;
+ case ISN_PCALL:
+ {
+ cpfunc_T *cpfunc = &iptr->isn_arg.pfunc;
+
+ smsg("%s%4d PCALL%s (argc %d)", pfx, current,
+ cpfunc->cpf_top ? " top" : "", cpfunc->cpf_argcount);
+ }
+ break;
+ case ISN_PCALL_END:
+ smsg("%s%4d PCALL end", pfx, current);
+ break;
+ case ISN_DEFER:
+ smsg("%s%4d DEFER %d args", pfx, current,
+ (int)iptr->isn_arg.defer.defer_argcount);
+ break;
+ case ISN_RETURN:
+ smsg("%s%4d RETURN", pfx, current);
+ break;
+ case ISN_RETURN_VOID:
+ smsg("%s%4d RETURN void", pfx, current);
+ break;
+ case ISN_RETURN_OBJECT:
+ smsg("%s%4d RETURN object", pfx, current);
+ break;
+ case ISN_FUNCREF:
+ {
+ funcref_T *funcref = &iptr->isn_arg.funcref;
+ funcref_extra_T *extra = funcref->fr_extra;
+ char_u *name;
+
+ if (extra == NULL || extra->fre_func_name == NULL)
+ {
+ dfunc_T *df = ((dfunc_T *)def_functions.ga_data)
+ + funcref->fr_dfunc_idx;
+ name = df->df_ufunc->uf_name;
+ }
+ else
+ name = extra->fre_func_name;
+ if (extra != NULL && extra->fre_class != NULL)
+ {
+ smsg("%s%4d FUNCREF %s.%s", pfx, current,
+ extra->fre_class->class_name, name);
+ }
+ else if (extra == NULL
+ || extra->fre_loopvar_info.lvi_depth == 0)
+ {
+ smsg("%s%4d FUNCREF %s", pfx, current, name);
+ }
+ else
+ {
+ char_u *info = printable_loopvarinfo(
+ &extra->fre_loopvar_info);
+
+ smsg("%s%4d FUNCREF %s vars %s", pfx, current,
+ name, info);
+ vim_free(info);
+ }
+ }
+ break;
+
+ case ISN_NEWFUNC:
+ {
+ newfuncarg_T *arg = iptr->isn_arg.newfunc.nf_arg;
+
+ if (arg->nfa_loopvar_info.lvi_depth == 0)
+ smsg("%s%4d NEWFUNC %s %s", pfx, current,
+ arg->nfa_lambda, arg->nfa_global);
+ else
+ {
+ char_u *info = printable_loopvarinfo(
+ &arg->nfa_loopvar_info);
+
+ smsg("%s%4d NEWFUNC %s %s vars %s", pfx, current,
+ arg->nfa_lambda, arg->nfa_global, info);
+ vim_free(info);
+ }
+ }
+ break;
+
+ case ISN_DEF:
+ {
+ char_u *name = iptr->isn_arg.string;
+
+ smsg("%s%4d DEF %s", pfx, current,
+ name == NULL ? (char_u *)"" : name);
+ }
+ break;
+
+ case ISN_JUMP:
+ {
+ char *when = "?";
+
+ switch (iptr->isn_arg.jump.jump_when)
+ {
+ case JUMP_ALWAYS:
+ when = "JUMP";
+ break;
+ case JUMP_NEVER:
+ iemsg("JUMP_NEVER should not be used");
+ break;
+ case JUMP_AND_KEEP_IF_TRUE:
+ when = "JUMP_AND_KEEP_IF_TRUE";
+ break;
+ case JUMP_IF_FALSE:
+ when = "JUMP_IF_FALSE";
+ break;
+ case JUMP_WHILE_FALSE:
+ when = "JUMP_WHILE_FALSE"; // unused
+ break;
+ case JUMP_IF_COND_FALSE:
+ when = "JUMP_IF_COND_FALSE";
+ break;
+ case JUMP_IF_COND_TRUE:
+ when = "JUMP_IF_COND_TRUE";
+ break;
+ }
+ smsg("%s%4d %s -> %d", pfx, current, when,
+ iptr->isn_arg.jump.jump_where);
+ }
+ break;
+
+ case ISN_JUMP_IF_ARG_SET:
+ smsg("%s%4d JUMP_IF_ARG_SET arg[%d] -> %d", pfx, current,
+ iptr->isn_arg.jumparg.jump_arg_off + STACK_FRAME_SIZE,
+ iptr->isn_arg.jump.jump_where);
+ break;
+
+ case ISN_JUMP_IF_ARG_NOT_SET:
+ smsg("%s%4d JUMP_IF_ARG_NOT_SET arg[%d] -> %d", pfx, current,
+ iptr->isn_arg.jumparg.jump_arg_off + STACK_FRAME_SIZE,
+ iptr->isn_arg.jump.jump_where);
+ break;
+
+ case ISN_FOR:
+ {
+ forloop_T *forloop = &iptr->isn_arg.forloop;
+
+ smsg("%s%4d FOR $%d -> %d", pfx, current,
+ forloop->for_loop_idx, forloop->for_end);
+ }
+ break;
+
+ case ISN_ENDLOOP:
+ {
+ endloop_T *endloop = &iptr->isn_arg.endloop;
+
+ smsg("%s%4d ENDLOOP ref $%d save $%d-$%d depth %d",
+ pfx, current,
+ endloop->end_funcref_idx,
+ endloop->end_var_idx,
+ endloop->end_var_idx + endloop->end_var_count - 1,
+ endloop->end_depth);
+ }
+ break;
+
+ case ISN_WHILE:
+ {
+ whileloop_T *whileloop = &iptr->isn_arg.whileloop;
+
+ smsg("%s%4d WHILE $%d -> %d", pfx, current,
+ whileloop->while_funcref_idx,
+ whileloop->while_end);
+ }
+ break;
+
+ case ISN_TRY:
+ {
+ try_T *try = &iptr->isn_arg.tryref;
+
+ if (try->try_ref->try_finally == 0)
+ smsg("%s%4d TRY catch -> %d, endtry -> %d",
+ pfx, current,
+ try->try_ref->try_catch,
+ try->try_ref->try_endtry);
+ else
+ smsg("%s%4d TRY catch -> %d, finally -> %d, endtry -> %d",
+ pfx, current,
+ try->try_ref->try_catch,
+ try->try_ref->try_finally,
+ try->try_ref->try_endtry);
+ }
+ break;
+ case ISN_CATCH:
+ smsg("%s%4d CATCH", pfx, current);
+ break;
+ case ISN_TRYCONT:
+ {
+ trycont_T *trycont = &iptr->isn_arg.trycont;
+
+ smsg("%s%4d TRY-CONTINUE %d level%s -> %d", pfx, current,
+ trycont->tct_levels,
+ trycont->tct_levels == 1 ? "" : "s",
+ trycont->tct_where);
+ }
+ break;
+ case ISN_FINALLY:
+ smsg("%s%4d FINALLY", pfx, current);
+ break;
+ case ISN_ENDTRY:
+ smsg("%s%4d ENDTRY", pfx, current);
+ break;
+ case ISN_THROW:
+ smsg("%s%4d THROW", pfx, current);
+ break;
+
+ // expression operations on number
+ case ISN_OPNR:
+ case ISN_OPFLOAT:
+ case ISN_OPANY:
+ {
+ char *what;
+ char *ins;
+
+ switch (iptr->isn_arg.op.op_type)
+ {
+ case EXPR_MULT: what = "*"; break;
+ case EXPR_DIV: what = "/"; break;
+ case EXPR_REM: what = "%"; break;
+ case EXPR_SUB: what = "-"; break;
+ case EXPR_ADD: what = "+"; break;
+ case EXPR_LSHIFT: what = "<<"; break;
+ case EXPR_RSHIFT: what = ">>"; break;
+ default: what = "???"; break;
+ }
+ switch (iptr->isn_type)
+ {
+ case ISN_OPNR: ins = "OPNR"; break;
+ case ISN_OPFLOAT: ins = "OPFLOAT"; break;
+ case ISN_OPANY: ins = "OPANY"; break;
+ default: ins = "???"; break;
+ }
+ smsg("%s%4d %s %s", pfx, current, ins, what);
+ }
+ break;
+
+ case ISN_COMPAREBOOL:
+ case ISN_COMPARESPECIAL:
+ case ISN_COMPARENULL:
+ case ISN_COMPARENR:
+ case ISN_COMPAREFLOAT:
+ case ISN_COMPARESTRING:
+ case ISN_COMPAREBLOB:
+ case ISN_COMPARELIST:
+ case ISN_COMPAREDICT:
+ case ISN_COMPAREFUNC:
+ case ISN_COMPAREOBJECT:
+ case ISN_COMPAREANY:
+ {
+ char *p;
+ char buf[10];
+ char *type;
+
+ switch (iptr->isn_arg.op.op_type)
+ {
+ case EXPR_EQUAL: p = "=="; break;
+ case EXPR_NEQUAL: p = "!="; break;
+ case EXPR_GREATER: p = ">"; break;
+ case EXPR_GEQUAL: p = ">="; break;
+ case EXPR_SMALLER: p = "<"; break;
+ case EXPR_SEQUAL: p = "<="; break;
+ case EXPR_MATCH: p = "=~"; break;
+ case EXPR_IS: p = "is"; break;
+ case EXPR_ISNOT: p = "isnot"; break;
+ case EXPR_NOMATCH: p = "!~"; break;
+ default: p = "???"; break;
+ }
+ STRCPY(buf, p);
+ if (iptr->isn_arg.op.op_ic == TRUE)
+ strcat(buf, "?");
+ switch(iptr->isn_type)
+ {
+ case ISN_COMPAREBOOL: type = "COMPAREBOOL"; break;
+ case ISN_COMPARESPECIAL:
+ type = "COMPARESPECIAL"; break;
+ case ISN_COMPARENULL: type = "COMPARENULL"; break;
+ case ISN_COMPARENR: type = "COMPARENR"; break;
+ case ISN_COMPAREFLOAT: type = "COMPAREFLOAT"; break;
+ case ISN_COMPARESTRING:
+ type = "COMPARESTRING"; break;
+ case ISN_COMPAREBLOB: type = "COMPAREBLOB"; break;
+ case ISN_COMPARELIST: type = "COMPARELIST"; break;
+ case ISN_COMPAREDICT: type = "COMPAREDICT"; break;
+ case ISN_COMPAREFUNC: type = "COMPAREFUNC"; break;
+ case ISN_COMPAREOBJECT:
+ type = "COMPAREOBJECT"; break;
+ case ISN_COMPAREANY: type = "COMPAREANY"; break;
+ default: type = "???"; break;
+ }
+
+ smsg("%s%4d %s %s", pfx, current, type, buf);
+ }
+ break;
+
+ case ISN_ADDLIST: smsg("%s%4d ADDLIST", pfx, current); break;
+ case ISN_ADDBLOB: smsg("%s%4d ADDBLOB", pfx, current); break;
+
+ // expression operations
+ case ISN_CONCAT:
+ smsg("%s%4d CONCAT size %lld", pfx, current,
+ (varnumber_T)(iptr->isn_arg.number));
+ break;
+ case ISN_STRINDEX: smsg("%s%4d STRINDEX", pfx, current); break;
+ case ISN_STRSLICE: smsg("%s%4d STRSLICE", pfx, current); break;
+ case ISN_BLOBINDEX: smsg("%s%4d BLOBINDEX", pfx, current); break;
+ case ISN_BLOBSLICE: smsg("%s%4d BLOBSLICE", pfx, current); break;
+ case ISN_LISTAPPEND: smsg("%s%4d LISTAPPEND", pfx, current); break;
+ case ISN_BLOBAPPEND: smsg("%s%4d BLOBAPPEND", pfx, current); break;
+ case ISN_LISTINDEX: smsg("%s%4d LISTINDEX", pfx, current); break;
+ case ISN_LISTSLICE: smsg("%s%4d LISTSLICE", pfx, current); break;
+ case ISN_ANYINDEX: smsg("%s%4d ANYINDEX", pfx, current); break;
+ case ISN_ANYSLICE: smsg("%s%4d ANYSLICE", pfx, current); break;
+ case ISN_SLICE: smsg("%s%4d SLICE %lld",
+ pfx, current, iptr->isn_arg.number); break;
+ case ISN_GETITEM: smsg("%s%4d ITEM %lld%s", pfx, current,
+ iptr->isn_arg.getitem.gi_index,
+ iptr->isn_arg.getitem.gi_with_op ?
+ " with op" : ""); break;
+ case ISN_MEMBER: smsg("%s%4d MEMBER", pfx, current); break;
+ case ISN_STRINGMEMBER: smsg("%s%4d MEMBER %s", pfx, current,
+ iptr->isn_arg.string); break;
+ case ISN_GET_OBJ_MEMBER: smsg("%s%4d OBJ_MEMBER %d", pfx, current,
+ (int)iptr->isn_arg.classmember.cm_idx);
+ break;
+ case ISN_GET_ITF_MEMBER: smsg("%s%4d ITF_MEMBER %d on %s",
+ pfx, current,
+ (int)iptr->isn_arg.classmember.cm_idx,
+ iptr->isn_arg.classmember.cm_class->class_name);
+ break;
+ case ISN_STORE_THIS: smsg("%s%4d STORE_THIS %d", pfx, current,
+ (int)iptr->isn_arg.number); break;
+ case ISN_CLEARDICT: smsg("%s%4d CLEARDICT", pfx, current); break;
+ case ISN_USEDICT: smsg("%s%4d USEDICT", pfx, current); break;
+
+ case ISN_NEGATENR: smsg("%s%4d NEGATENR", pfx, current); break;
+
+ case ISN_CHECKTYPE:
+ {
+ checktype_T *ct = &iptr->isn_arg.type;
+ char *tofree = NULL;
+ char *typename;
+
+ if (ct->ct_type->tt_type == VAR_FLOAT
+ && (ct->ct_type->tt_flags & TTFLAG_NUMBER_OK))
+ typename = "float|number";
+ else
+ typename = type_name(ct->ct_type, &tofree);
+
+ if (ct->ct_arg_idx == 0)
+ smsg("%s%4d CHECKTYPE %s stack[%d]", pfx, current,
+ typename,
+ (int)ct->ct_off);
+ else
+ smsg("%s%4d CHECKTYPE %s stack[%d] %s %d",
+ pfx, current,
+ typename,
+ (int)ct->ct_off,
+ ct->ct_is_var ? "var": "arg",
+ (int)ct->ct_arg_idx);
+ vim_free(tofree);
+ break;
+ }
+ case ISN_CHECKLEN: smsg("%s%4d CHECKLEN %s%d", pfx, current,
+ iptr->isn_arg.checklen.cl_more_OK ? ">= " : "",
+ iptr->isn_arg.checklen.cl_min_len);
+ break;
+ case ISN_SETTYPE:
+ {
+ char *tofree;
+
+ smsg("%s%4d SETTYPE %s", pfx, current,
+ type_name(iptr->isn_arg.type.ct_type, &tofree));
+ vim_free(tofree);
+ break;
+ }
+ case ISN_COND2BOOL: smsg("%s%4d COND2BOOL", pfx, current); break;
+ case ISN_2BOOL: if (iptr->isn_arg.tobool.invert)
+ smsg("%s%4d INVERT %d (!val)", pfx, current,
+ iptr->isn_arg.tobool.offset);
+ else
+ smsg("%s%4d 2BOOL %d (!!val)", pfx, current,
+ iptr->isn_arg.tobool.offset);
+ break;
+ case ISN_2STRING: smsg("%s%4d 2STRING stack[%lld]", pfx, current,
+ (varnumber_T)(iptr->isn_arg.tostring.offset));
+ break;
+ case ISN_2STRING_ANY: smsg("%s%4d 2STRING_ANY stack[%lld]",
+ pfx, current,
+ (varnumber_T)(iptr->isn_arg.tostring.offset));
+ break;
+ case ISN_RANGE: smsg("%s%4d RANGE %s", pfx, current,
+ iptr->isn_arg.string);
+ break;
+ case ISN_PUT:
+ if (iptr->isn_arg.put.put_lnum == LNUM_VARIABLE_RANGE_ABOVE)
+ smsg("%s%4d PUT %c above range",
+ pfx, current, iptr->isn_arg.put.put_regname);
+ else if (iptr->isn_arg.put.put_lnum == LNUM_VARIABLE_RANGE)
+ smsg("%s%4d PUT %c range",
+ pfx, current, iptr->isn_arg.put.put_regname);
+ else
+ smsg("%s%4d PUT %c %ld", pfx, current,
+ iptr->isn_arg.put.put_regname,
+ (long)iptr->isn_arg.put.put_lnum);
+ break;
+
+ case ISN_CMDMOD:
+ {
+ char_u *buf;
+ size_t len = produce_cmdmods(
+ NULL, iptr->isn_arg.cmdmod.cf_cmdmod, FALSE);
+
+ buf = alloc(len + 1);
+ if (likely(buf != NULL))
+ {
+ (void)produce_cmdmods(
+ buf, iptr->isn_arg.cmdmod.cf_cmdmod, FALSE);
+ smsg("%s%4d CMDMOD %s", pfx, current, buf);
+ vim_free(buf);
+ }
+ break;
+ }
+ case ISN_CMDMOD_REV: smsg("%s%4d CMDMOD_REV", pfx, current); break;
+
+ case ISN_PROF_START:
+ smsg("%s%4d PROFILE START line %d", pfx, current,
+ iptr->isn_lnum);
+ break;
+
+ case ISN_PROF_END:
+ smsg("%s%4d PROFILE END", pfx, current);
+ break;
+
+ case ISN_DEBUG:
+ smsg("%s%4d DEBUG line %d-%d varcount %lld", pfx, current,
+ iptr->isn_arg.debug.dbg_break_lnum + 1,
+ iptr->isn_lnum,
+ iptr->isn_arg.debug.dbg_var_names_len);
+ break;
+
+ case ISN_UNPACK: smsg("%s%4d UNPACK %d%s", pfx, current,
+ iptr->isn_arg.unpack.unp_count,
+ iptr->isn_arg.unpack.unp_semicolon ? " semicolon" : "");
+ break;
+ case ISN_SHUFFLE: smsg("%s%4d SHUFFLE %d up %d", pfx, current,
+ iptr->isn_arg.shuffle.shfl_item,
+ iptr->isn_arg.shuffle.shfl_up);
+ break;
+ case ISN_DROP: smsg("%s%4d DROP", pfx, current); break;
+
+ case ISN_FINISH: // End of list of instructions for ISN_SUBSTITUTE.
+ return;
+ }
+
+ out_flush(); // output one line at a time
+ ui_breakcheck();
+ if (got_int)
+ break;
+ }
+}
+
+/*
+ * Handle command line completion for the :disassemble command.
+ */
+ void
+set_context_in_disassemble_cmd(expand_T *xp, char_u *arg)
+{
+ char_u *p;
+
+ // Default: expand user functions, "debug" and "profile"
+ xp->xp_context = EXPAND_DISASSEMBLE;
+ xp->xp_pattern = arg;
+
+ // first argument already typed: only user function names
+ if (*arg != NUL && *(p = skiptowhite(arg)) != NUL)
+ {
+ xp->xp_context = EXPAND_USER_FUNC;
+ xp->xp_pattern = skipwhite(p);
+ }
+}
+
+/*
+ * Function given to ExpandGeneric() to obtain the list of :disassemble
+ * arguments.
+ */
+ char_u *
+get_disassemble_argument(expand_T *xp, int idx)
+{
+ if (idx == 0)
+ return (char_u *)"debug";
+ if (idx == 1)
+ return (char_u *)"profile";
+ return get_user_func_name(xp, idx - 2);
+}
+
+/*
+ * ":disassemble".
+ * We don't really need this at runtime, but we do have tests that require it,
+ * so always include this.
+ */
+ void
+ex_disassemble(exarg_T *eap)
+{
+ char_u *arg = eap->arg;
+ ufunc_T *ufunc;
+ dfunc_T *dfunc;
+ isn_T *instr = NULL; // init to shut up gcc warning
+ int instr_count = 0; // init to shut up gcc warning
+ compiletype_T compile_type = CT_NONE;
+
+ ufunc = find_func_by_name(arg, &compile_type);
+ if (ufunc == NULL)
+ return;
+ if (func_needs_compiling(ufunc, compile_type)
+ && compile_def_function(ufunc, FALSE, compile_type, NULL) == FAIL)
+ return;
+ if (ufunc->uf_def_status != UF_COMPILED)
+ {
+ semsg(_(e_function_is_not_compiled_str), eap->arg);
+ return;
+ }
+ msg((char *)printable_func_name(ufunc));
+
+ dfunc = ((dfunc_T *)def_functions.ga_data) + ufunc->uf_dfunc_idx;
+ switch (compile_type)
+ {
+ case CT_PROFILE:
+#ifdef FEAT_PROFILE
+ instr = dfunc->df_instr_prof;
+ instr_count = dfunc->df_instr_prof_count;
+ break;
+#endif
+ // FALLTHROUGH
+ case CT_NONE:
+ instr = dfunc->df_instr;
+ instr_count = dfunc->df_instr_count;
+ break;
+ case CT_DEBUG:
+ instr = dfunc->df_instr_debug;
+ instr_count = dfunc->df_instr_debug_count;
+ break;
+ }
+
+ list_instructions("", instr, instr_count, ufunc);
+}
+
+/*
+ * Return TRUE when "tv" is not falsy: non-zero, non-empty string, non-empty
+ * list, etc. Mostly like what JavaScript does, except that empty list and
+ * empty dictionary are FALSE.
+ */
+ int
+tv2bool(typval_T *tv)
+{
+ switch (tv->v_type)
+ {
+ case VAR_NUMBER:
+ return tv->vval.v_number != 0;
+ case VAR_FLOAT:
+ return tv->vval.v_float != 0.0;
+ case VAR_PARTIAL:
+ return tv->vval.v_partial != NULL;
+ case VAR_FUNC:
+ case VAR_STRING:
+ return tv->vval.v_string != NULL && *tv->vval.v_string != NUL;
+ case VAR_LIST:
+ return tv->vval.v_list != NULL && tv->vval.v_list->lv_len > 0;
+ case VAR_DICT:
+ return tv->vval.v_dict != NULL
+ && tv->vval.v_dict->dv_hashtab.ht_used > 0;
+ case VAR_BOOL:
+ case VAR_SPECIAL:
+ return tv->vval.v_number == VVAL_TRUE ? TRUE : FALSE;
+ case VAR_JOB:
+#ifdef FEAT_JOB_CHANNEL
+ return tv->vval.v_job != NULL;
+#else
+ break;
+#endif
+ case VAR_CHANNEL:
+#ifdef FEAT_JOB_CHANNEL
+ return tv->vval.v_channel != NULL;
+#else
+ break;
+#endif
+ case VAR_BLOB:
+ return tv->vval.v_blob != NULL && tv->vval.v_blob->bv_ga.ga_len > 0;
+ case VAR_UNKNOWN:
+ case VAR_ANY:
+ case VAR_VOID:
+ case VAR_INSTR:
+ case VAR_CLASS:
+ case VAR_OBJECT:
+ case VAR_TYPEALIAS:
+ break;
+ }
+ return FALSE;
+}
+
+ void
+emsg_using_string_as(typval_T *tv, int as_number)
+{
+ semsg(_(as_number ? e_using_string_as_number_str
+ : e_using_string_as_bool_str),
+ tv->vval.v_string == NULL
+ ? (char_u *)"" : tv->vval.v_string);
+}
+
+/*
+ * If "tv" is a string give an error and return FAIL.
+ */
+ int
+check_not_string(typval_T *tv)
+{
+ if (tv->v_type == VAR_STRING)
+ {
+ emsg_using_string_as(tv, TRUE);
+ clear_tv(tv);
+ return FAIL;
+ }
+ return OK;
+}
+
+
+#endif // FEAT_EVAL