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Fix redeclaration related eval corner cases (#4886)

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- Fix cases where a function parameter binding is redeclared inside a parameter initializer eval
- Fix cases where a let- or function arguments binding is redeclared inside a function block because
  there is a declaration in a function parameter initializer eval
- Also remove the ECMA_PARSE_CHAIN_INDEX_SHIFT macro, added a debugger_eval_chain_index named field to the jerry context instead

JerryScript-DCO-1.0-Signed-off-by: Adam Szilagyi aszilagy@inf.u-szeged.hu
This commit is contained in:
Szilagyi Adam
2021-12-15 12:45:10 +01:00
committed by GitHub
parent 768a209544
commit d650390e47
8 changed files with 158 additions and 191 deletions
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jerry-core/parser/js/js-parser-internal.h
+7 -7
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@@ -64,15 +64,15 @@ typedef enum
PARSER_IS_GENERATOR_FUNCTION = (1u << 14), /**< a generator function is parsed */
PARSER_IS_ASYNC_FUNCTION = (1u << 15), /**< an async function is parsed */
PARSER_DISALLOW_AWAIT_YIELD = (1u << 16), /**< throw SyntaxError for await / yield keywords */
PARSER_FUNCTION_IS_PARSING_ARGS = (1u << 17), /**< set when parsing function arguments */
PARSER_FUNCTION_HAS_COMPLEX_ARGUMENT = (1u << 18), /**< function has complex (ES2015+) argument definition */
PARSER_FUNCTION_HAS_REST_PARAM = (1u << 19), /**< function has rest parameter */
PARSER_CLASS_CONSTRUCTOR = (1u << 20), /**< a class constructor is parsed
PARSER_FUNCTION_HAS_COMPLEX_ARGUMENT = (1u << 17), /**< function has complex (ES2015+) argument definition */
PARSER_FUNCTION_HAS_REST_PARAM = (1u << 18), /**< function has rest parameter */
PARSER_CLASS_CONSTRUCTOR = (1u << 19), /**< a class constructor is parsed
* Note: PARSER_ALLOW_SUPER must be present */
/* These four status flags must be in this order. See PARSER_SAVED_FLAGS_OFFSET. */
PARSER_ALLOW_SUPER = (1u << 21), /**< allow super property access */
PARSER_ALLOW_SUPER_CALL = (1u << 22), /**< allow super constructor call
/* These five status flags must be in this order. See PARSER_SAVED_FLAGS_OFFSET. */
PARSER_ALLOW_SUPER = (1u << 20), /**< allow super property access */
PARSER_ALLOW_SUPER_CALL = (1u << 21), /**< allow super constructor call
* Note: PARSER_CLASS_CONSTRUCTOR must be present */
PARSER_FUNCTION_IS_PARSING_ARGS = (1u << 22), /**< set when parsing function arguments */
PARSER_INSIDE_CLASS_FIELD = (1u << 23), /**< a class field is being parsed */
PARSER_ALLOW_NEW_TARGET = (1u << 24), /**< allow new.target parsing in the current context */
PARSER_IS_METHOD = (1u << 25), /**< method is parsed */