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Implement throwing ReferenceErrors for let/const variables. (#3264)

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JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2019-10-31 11:09:02 +01:00
committed by Dániel Bátyai
parent d1faed7d03
commit 6a342fcdd6
16 changed files with 306 additions and 75 deletions
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jerry-core/ecma/operations/ecma-reference.c
+11 -1
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@@ -114,7 +114,17 @@ ecma_op_resolve_reference_value (ecma_object_t *lex_env_p, /**< starting lexical
if (property_p != NULL)
{
return ecma_fast_copy_value (ECMA_PROPERTY_VALUE_PTR (property_p)->value);
ecma_property_value_t *property_value_p = ECMA_PROPERTY_VALUE_PTR (property_p);
#if ENABLED (JERRY_ES2015)
if (JERRY_UNLIKELY (property_value_p->value == ECMA_VALUE_UNINITIALIZED))
{
return ecma_raise_reference_error (ECMA_ERR_MSG ("Variables declared by let/const must be"
" initialized before reading their value."));
}
#endif /* ENABLED (JERRY_ES2015) */
return ecma_fast_copy_value (property_value_p->value);
}
}
else if (lex_env_type == ECMA_LEXICAL_ENVIRONMENT_THIS_OBJECT_BOUND)