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Introducing 'scope flags' opcode containing set of flags that indicate various properties of a scope; replacing 'strict mode' meta opcode with a flag in the flags set.

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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 16:54:18 +03:00
parent e984bc30ea
commit cb600da269
10 changed files with 81 additions and 25 deletions
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jerry-core/vm/vm.cpp
+17 -4
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@@ -366,12 +366,11 @@ vm_run_global (void)
bool is_strict = false;
opcode_counter_t start_pos = 0;
opcode_t first_opcode = vm_get_opcode (start_pos);
if (first_opcode.op_idx == __op__idx_meta
&& first_opcode.data.meta.type == OPCODE_META_TYPE_STRICT_CODE)
opcode_scope_code_flags_t scope_flags = vm_get_scope_flags (start_pos++);
if (scope_flags & OPCODE_SCOPE_CODE_FLAGS_STRICT)
{
is_strict = true;
start_pos++;
}
ecma_object_t *glob_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_GLOBAL);
@@ -557,6 +556,20 @@ vm_get_opcode (opcode_counter_t counter) /**< opcode counter */
return __program[ counter ];
} /* vm_get_opcode */
/**
* Get scope code flags from opcode specified by opcode counter
*
* @return mask of scope code flags
*/
opcode_scope_code_flags_t
vm_get_scope_flags (opcode_counter_t counter) /**< opcode counter */
{
opcode_t flags_opcode = vm_get_opcode (counter);
JERRY_ASSERT (flags_opcode.op_idx == __op__idx_meta
&& flags_opcode.data.meta.type == OPCODE_META_TYPE_SCOPE_CODE_FLAGS);
return (opcode_scope_code_flags_t) flags_opcode.data.meta.data_1;
} /* vm_get_scope_flags */
/**
* Get this binding of current execution context
*