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Implement array/object destructuring (#3305)

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This patch implements the core functionality of destructuring patterns.
Function argument/for in-of pattern are currently unsupported.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
This commit is contained in:
Robert Fancsik
2019-11-14 13:49:49 +01:00
committed by Zoltan Herczeg
parent b4b55a67a2
commit 213544ae47
19 changed files with 1628 additions and 177 deletions
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jerry-core/parser/js/js-parser-internal.h
+14
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@@ -99,6 +99,18 @@ typedef enum
* CBC_PUSH_LITERAL instruction */
} parser_expression_flags_t;
/**
* Pattern parsing flags.
*/
typedef enum
{
PARSER_PATTERN_NO_OPTS = 0, /**< parse the expression after '=' */
PARSER_PATTERN_BINDING = (1u << 0), /**< parse BindingPattern */
PARSER_PATTERN_TARGET_ON_STACK = (1u << 1), /**< assignment target is the topmost element on the stack */
PARSER_PATTERN_TARGET_DEFAULT = (1u << 2), /**< perform default value comparison for assignment target */
PARSER_PATTERN_INNER_PATTERN = (1u << 3), /**< parse patter inside a pattern */
} parser_pattern_flags_t;
/**
* Mask for strict mode code
*/
@@ -623,6 +635,7 @@ void parser_parse_expression (parser_context_t *context_p, int options);
void parser_parse_class (parser_context_t *context_p, bool is_statement);
void parser_parse_super_class_context_start (parser_context_t *context_p);
void parser_parse_super_class_context_end (parser_context_t *context_p);
void parser_parse_initializer (parser_context_t *context_p, parser_pattern_flags_t flags);
#endif /* ENABLED (JERRY_ES2015) */
/**
@@ -684,6 +697,7 @@ void parser_module_set_default (parser_context_t *context_p);
ecma_module_node_t *parser_module_create_module_node (parser_context_t *context_p);
bool parser_module_check_duplicate_import (parser_context_t *context_p, ecma_string_t *local_name_p);
bool parser_module_check_duplicate_export (parser_context_t *context_p, ecma_string_t *export_name_p);
void parser_module_append_export_name (parser_context_t *context_p);
void parser_module_add_names_to_node (parser_context_t *context_p,
ecma_string_t *imex_name_p,
ecma_string_t *local_name_p);