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/* Copyright (c) 2002-2018 Pigeonhole authors, see the included COPYING file
*/
#include "sieve-common.h"
#include "sieve-commands.h"
#include "sieve-generator.h"
#include "sieve-validator.h"
#include "sieve-binary.h"
#include "sieve-code.h"
#include "sieve-binary.h"
/*
* Anyof test
*
* Syntax
* anyof <tests: test-list>
*/
static bool tst_anyof_generate
(const struct sieve_codegen_env *cgenv, struct sieve_command *ctx,
struct sieve_jumplist *jumps, bool jump_true);
static bool tst_anyof_validate_const
(struct sieve_validator *valdtr, struct sieve_command *tst,
int *const_current, int const_next);
const struct sieve_command_def tst_anyof = {
.identifier = "anyof",
.type = SCT_TEST,
.positional_args = 0,
.subtests = 2,
.block_allowed = FALSE,
.block_required = FALSE,
.validate_const = tst_anyof_validate_const,
.control_generate = tst_anyof_generate
};
/*
* Code validation
*/
static bool tst_anyof_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 = 1;
return FALSE;
}
if ( *const_current != -1 )
*const_current = const_next;
return TRUE;
}
/*
* Code generation
*/
static bool tst_anyof_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 true_jumps;
if ( sieve_ast_test_count(ctx->ast_node) > 1 ) {
if ( !jump_true ) {
/* Prepare jumplist */
sieve_jumplist_init_temp(&true_jumps, sblock);
}
test = sieve_ast_test_first(ctx->ast_node);
while ( test != NULL ) {
bool result;
/* If this test list must jump on true, all sub-tests can simply add their jumps
* to the caller's jump list, otherwise this test redirects all true jumps to the
* end of the currently generated code. This is just after a final jump to the false
* case
*/
if ( !jump_true )
result = sieve_generate_test(cgenv, test, &true_jumps, TRUE);
else
result = sieve_generate_test(cgenv, test, jumps, TRUE);
if ( !result ) return FALSE;
test = sieve_ast_test_next(test);
}
if ( !jump_true ) {
/* All tests failed, jump to case FALSE */
sieve_operation_emit(sblock, NULL, &sieve_jmp_operation);
sieve_jumplist_add(jumps, sieve_binary_emit_offset(sblock, 0));
/* All true exits jump here */
sieve_jumplist_resolve(&true_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;
}
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