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Instantiation of Arguments object.

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JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com
This commit is contained in:
Ruben Ayrapetyan
2015-05-26 20:34:07 +03:00
parent ed4ff8e5bb
commit d4537eb0d1
4 changed files with 305 additions and 144 deletions
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jerry-core/ecma/operations/ecma-function-object.cpp
+79 -44
View File
@@ -23,6 +23,7 @@
#include "ecma-lex-env.h"
#include "ecma-objects.h"
#include "ecma-objects-general.h"
#include "ecma-objects-arguments.h"
#include "ecma-try-catch-macro.h"
#include "jrt.h"
@@ -379,60 +380,58 @@ ecma_function_call_setup_args_variables (ecma_object_t *func_obj_p, /**< Functio
formal_parameters_p = ECMA_GET_POINTER (ecma_collection_header_t,
formal_parameters_prop_p->u.internal_property.value);
if (formal_parameters_p == NULL)
if (formal_parameters_p != NULL)
{
return ecma_make_empty_completion_value ();
}
ecma_length_t formal_parameters_count = formal_parameters_p->unit_number;
ecma_length_t formal_parameters_count = formal_parameters_p->unit_number;
ecma_collection_iterator_t formal_params_iterator;
ecma_collection_iterator_init (&formal_params_iterator, formal_parameters_p);
ecma_collection_iterator_t formal_params_iterator;
ecma_collection_iterator_init (&formal_params_iterator, formal_parameters_p);
for (size_t n = 0;
n < formal_parameters_count;
n++)
{
ecma_value_t v;
if (n >= arguments_list_len)
for (size_t n = 0;
n < formal_parameters_count;
n++)
{
v = ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED);
}
else
{
v = arguments_list_p[n];
}
bool is_moved = ecma_collection_iterator_next (&formal_params_iterator);
JERRY_ASSERT (is_moved);
ecma_value_t formal_parameter_name_value = *formal_params_iterator.current_value_p;
ecma_string_t *formal_parameter_name_string_p = ecma_get_string_from_value (formal_parameter_name_value);
bool arg_already_declared = ecma_op_has_binding (env_p, formal_parameter_name_string_p);
if (!arg_already_declared)
{
ecma_completion_value_t completion = ecma_op_create_mutable_binding (env_p,
formal_parameter_name_string_p,
false);
if (ecma_is_completion_value_throw (completion))
ecma_value_t v;
if (n >= arguments_list_len)
{
return completion;
v = ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED);
}
else
{
v = arguments_list_p[n];
}
JERRY_ASSERT (ecma_is_completion_value_empty (completion));
bool is_moved = ecma_collection_iterator_next (&formal_params_iterator);
JERRY_ASSERT (is_moved);
completion = ecma_op_set_mutable_binding (env_p,
formal_parameter_name_string_p,
v,
is_strict);
ecma_value_t formal_parameter_name_value = *formal_params_iterator.current_value_p;
ecma_string_t *formal_parameter_name_string_p = ecma_get_string_from_value (formal_parameter_name_value);
if (ecma_is_completion_value_throw (completion))
bool arg_already_declared = ecma_op_has_binding (env_p, formal_parameter_name_string_p);
if (!arg_already_declared)
{
return completion;
}
ecma_completion_value_t completion = ecma_op_create_mutable_binding (env_p,
formal_parameter_name_string_p,
false);
if (ecma_is_completion_value_throw (completion))
{
return completion;
}
JERRY_ASSERT (ecma_is_completion_value_empty (completion));
JERRY_ASSERT (ecma_is_completion_value_empty (completion));
completion = ecma_op_set_mutable_binding (env_p,
formal_parameter_name_string_p,
v,
is_strict);
if (ecma_is_completion_value_throw (completion))
{
return completion;
}
JERRY_ASSERT (ecma_is_completion_value_empty (completion));
}
}
}
@@ -451,7 +450,43 @@ ecma_function_call_setup_args_variables (ecma_object_t *func_obj_p, /**< Functio
* so instantiation of Arguments object here, in general, is supposed to not affect resource consumption
* significantly.
*/
JERRY_UNIMPLEMENTED ("Instantiate Arguments object and setup 'arguments' implicit variable");
ecma_string_t *arguments_string_p = ecma_get_magic_string (ECMA_MAGIC_STRING_ARGUMENTS);
bool binding_already_declared = ecma_op_has_binding (env_p, arguments_string_p);
if (!binding_already_declared)
{
ecma_object_t *args_obj_p = ecma_op_create_arguments_object (func_obj_p,
env_p,
formal_parameters_p,
arguments_list_p,
arguments_list_len,
is_strict);
if (is_strict)
{
ecma_op_create_immutable_binding (env_p, arguments_string_p);
ecma_op_initialize_immutable_binding (env_p, arguments_string_p, ecma_make_object_value (args_obj_p));
}
else
{
ecma_completion_value_t completion = ecma_op_create_mutable_binding (env_p,
arguments_string_p,
false);
JERRY_ASSERT (ecma_is_completion_value_empty (completion));
completion = ecma_op_set_mutable_binding (env_p,
arguments_string_p,
ecma_make_object_value (args_obj_p),
false);
JERRY_ASSERT (ecma_is_completion_value_empty (completion));
}
ecma_deref_object (args_obj_p);
}
ecma_deref_ecma_string (arguments_string_p);
}
return ecma_make_empty_completion_value ();