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Partial implementation of [[Construct]] routine for Function objects

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This commit is contained in:
Ruben Ayrapetyan
2014-08-22 16:54:23 +04:00
parent 50a1532801
commit 5713373279
2 changed files with 95 additions and 0 deletions
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src/libecmaoperations/ecma-function-object.c
+91
View File
@@ -446,6 +446,97 @@ ecma_op_function_call (ecma_object_t *func_obj_p, /**< Function object */
}
} /* ecma_op_function_call */
/**
* [[Construct]] implementation for Function objects,
* created through 13.2 (ECMA_OBJECT_TYPE_FUNCTION)
* or 15.3.4.5 (ECMA_OBJECT_TYPE_BOUND_FUNCTION).
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value
*/
ecma_completion_value_t
ecma_op_function_construct (ecma_object_t *func_obj_p, /**< Function object */
ecma_value_t* arguments_list_p, /**< arguments list */
ecma_length_t arguments_list_len) /**< length of arguments list */
{
JERRY_ASSERT(func_obj_p != NULL && !func_obj_p->is_lexical_environment);
JERRY_ASSERT(ecma_op_is_callable (ecma_make_object_value (func_obj_p)));
JERRY_ASSERT(arguments_list_len == 0 || arguments_list_p != NULL);
if (func_obj_p->u.object.type == ECMA_OBJECT_TYPE_FUNCTION)
{
ecma_completion_value_t ret_value;
ecma_string_t *prototype_magic_string_p = ecma_get_magic_string (ECMA_MAGIC_STRING_PROTOTYPE);
// 5.
ECMA_TRY_CATCH (func_obj_prototype_prop_value,
ecma_op_object_get (func_obj_p,
prototype_magic_string_p),
ret_value);
// 6.
ecma_object_t *prototype_p;
if (func_obj_prototype_prop_value.value.value_type == ECMA_TYPE_OBJECT)
{
prototype_p = ECMA_GET_POINTER (func_obj_prototype_prop_value.value.value);
ecma_ref_object (prototype_p);
}
else
{
// 7.
FIXME (/* Set to built-in Object prototype (15.2.4) */);
prototype_p = ecma_create_object (NULL, false, ECMA_OBJECT_TYPE_GENERAL);
}
// 1., 2., 4.
ecma_object_t *obj_p = ecma_create_object (prototype_p, true, ECMA_OBJECT_TYPE_GENERAL);
// 3.
ecma_property_t *class_prop_p = ecma_create_internal_property (obj_p, ECMA_INTERNAL_PROPERTY_CLASS);
class_prop_p->u.internal_property.value = ECMA_OBJECT_CLASS_FUNCTION;
ecma_deref_object (prototype_p);
// 8.
ECMA_TRY_CATCH (call_completion,
ecma_op_function_call (func_obj_p,
ecma_make_object_value (obj_p),
arguments_list_p,
arguments_list_len),
ret_value);
// 9.
if (call_completion.type != ECMA_COMPLETION_TYPE_NORMAL
|| call_completion.value.value_type == ECMA_TYPE_OBJECT)
{
ecma_deref_object (obj_p);
ret_value = call_completion;
}
else
{
// 10.
ecma_free_completion_value (call_completion);
ret_value = ecma_make_completion_value (ECMA_COMPLETION_TYPE_NORMAL,
ecma_make_object_value (obj_p),
ECMA_TARGET_ID_RESERVED);
}
ECMA_FINALIZE (call_completion);
ECMA_FINALIZE (func_obj_prototype_prop_value);
return ret_value;
}
else
{
JERRY_ASSERT(func_obj_p->u.object.type == ECMA_OBJECT_TYPE_BOUND_FUNCTION);
JERRY_UNIMPLEMENTED();
}
} /* ecma_op_function_construct */
/**
* Function declaration.
*
src/libecmaoperations/ecma-function-object.h
+4
View File
@@ -40,6 +40,10 @@ extern ecma_completion_value_t ecma_op_function_call (ecma_object_t *func_obj_p,
ecma_value_t* arguments_list_p,
ecma_length_t arguments_list_len);
extern ecma_completion_value_t ecma_op_function_construct (ecma_object_t *func_obj_p,
ecma_value_t* arguments_list_p,
ecma_length_t arguments_list_len);
extern ecma_completion_value_t
ecma_op_function_declaration (ecma_object_t *lex_env_p,
ecma_string_t *function_name_p,