summaryrefslogtreecommitdiffstats
path: root/pigeonhole/src/lib-sieve/tst-allof.c
diff options
context:
space:
mode:
Diffstat (limited to 'pigeonhole/src/lib-sieve/tst-allof.c')
-rw-r--r--pigeonhole/src/lib-sieve/tst-allof.c108
1 files changed, 108 insertions, 0 deletions
diff --git a/pigeonhole/src/lib-sieve/tst-allof.c b/pigeonhole/src/lib-sieve/tst-allof.c
new file mode 100644
index 0000000..6d278b9
--- /dev/null
+++ b/pigeonhole/src/lib-sieve/tst-allof.c
@@ -0,0 +1,108 @@
+/* Copyright (c) 2002-2018 Pigeonhole authors, see the included COPYING file
+ */
+
+#include "sieve-common.h"
+#include "sieve-commands.h"
+#include "sieve-validator.h"
+#include "sieve-generator.h"
+#include "sieve-binary.h"
+#include "sieve-code.h"
+#include "sieve-binary.h"
+
+/*
+ * Allof test
+ *
+ * Syntax
+ * allof <tests: test-list>
+ */
+
+static bool tst_allof_generate
+ (const struct sieve_codegen_env *cgenv, struct sieve_command *ctx,
+ struct sieve_jumplist *jumps, bool jump_true);
+static bool tst_allof_validate_const
+ (struct sieve_validator *valdtr, struct sieve_command *tst,
+ int *const_current, int const_new);
+
+const struct sieve_command_def tst_allof = {
+ .identifier = "allof",
+ .type = SCT_TEST,
+ .positional_args = 0,
+ .subtests = 2,
+ .block_allowed = FALSE,
+ .block_required = FALSE,
+ .validate_const = tst_allof_validate_const,
+ .control_generate = tst_allof_generate
+};
+
+/*
+ * Code validation
+ */
+
+static bool tst_allof_validate_const
+(struct sieve_validator *valdtr ATTR_UNUSED,
+ struct sieve_command *tst ATTR_UNUSED, int *const_current, int const_next)
+{
+ if ( const_next == 0 ) {
+ *const_current = 0;
+ return FALSE;
+ }
+
+ if ( *const_current != -1 )
+ *const_current = const_next;
+ return TRUE;
+}
+
+/*
+ * Code generation
+ */
+
+static bool tst_allof_generate
+(const struct sieve_codegen_env *cgenv, struct sieve_command *ctx,
+ struct sieve_jumplist *jumps, bool jump_true)
+{
+ struct sieve_binary_block *sblock = cgenv->sblock;
+ struct sieve_ast_node *test;
+ struct sieve_jumplist false_jumps;
+
+ if ( sieve_ast_test_count(ctx->ast_node) > 1 ) {
+ if ( jump_true ) {
+ /* Prepare jumplist */
+ sieve_jumplist_init_temp(&false_jumps, sblock);
+ }
+
+ test = sieve_ast_test_first(ctx->ast_node);
+ while ( test != NULL ) {
+ bool result;
+
+ /* If this test list must jump on false, all sub-tests can simply add their jumps
+ * to the caller's jump list, otherwise this test redirects all false jumps to the
+ * end of the currently generated code. This is just after a final jump to the true
+ * case
+ */
+ if ( jump_true )
+ result = sieve_generate_test(cgenv, test, &false_jumps, FALSE);
+ else
+ result = sieve_generate_test(cgenv, test, jumps, FALSE);
+
+ if ( !result ) return FALSE;
+
+ test = sieve_ast_test_next(test);
+ }
+
+ if ( jump_true ) {
+ /* All tests succeeded, jump to case TRUE */
+ sieve_operation_emit(cgenv->sblock, NULL, &sieve_jmp_operation);
+ sieve_jumplist_add(jumps, sieve_binary_emit_offset(sblock, 0));
+
+ /* All false exits jump here */
+ sieve_jumplist_resolve(&false_jumps);
+ }
+ } else {
+ /* Script author is being inefficient; we can optimize the allof test away */
+ test = sieve_ast_test_first(ctx->ast_node);
+ sieve_generate_test(cgenv, test, jumps, jump_true);
+ }
+
+ return TRUE;
+}
+