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Improve arguments object (#4145)

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- Enhancement: Arguments object properties are now lazy instantiated
 - Bugfix: Mapped arguments object instantiated properties cannot be lcached
 - Bugfix: Mapped arguments should be constructed even if 0 formal parameters or arguments are provided
 - Update: remove 'caller' property of unmapped arguments object

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
This commit is contained in:
Robert Fancsik
2020-09-28 15:57:58 +02:00
committed by GitHub
parent 32de38198a
commit 75385a6045
14 changed files with 943 additions and 591 deletions
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jerry-core/ecma/base/ecma-helpers.h
+2 -4
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@@ -536,12 +536,10 @@ void ecma_raise_error_from_error_reference (ecma_value_t value);
void ecma_bytecode_ref (ecma_compiled_code_t *bytecode_p);
void ecma_bytecode_deref (ecma_compiled_code_t *bytecode_p);
#if ENABLED (JERRY_ESNEXT)
ecma_collection_t *ecma_compiled_code_get_tagged_template_collection (const ecma_compiled_code_t *bytecode_header_p);
#endif /* ENABLED (JERRY_ESNEXT) */
#if ENABLED (JERRY_ESNEXT)
uint32_t ecma_compiled_code_get_formal_params (const ecma_compiled_code_t *bytecode_p);
ecma_value_t *ecma_compiled_code_resolve_arguments_start (const ecma_compiled_code_t *bytecode_header_p);
#if ENABLED (JERRY_ESNEXT)
ecma_collection_t *ecma_compiled_code_get_tagged_template_collection (const ecma_compiled_code_t *bytecode_header_p);
ecma_value_t *ecma_compiled_code_resolve_function_name (const ecma_compiled_code_t *bytecode_header_p);
#endif /* ENABLED (JERRY_ESNEXT) */
ecma_value_t ecma_get_resource_name (const ecma_compiled_code_t *bytecode_p);