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Adding scope's code flags indicating whether the scope's code reference 'arguments' and 'eval' identifiers.

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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 17:34:13 +03:00
parent cb600da269
commit b1a31c8144
4 changed files with 68 additions and 12 deletions
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jerry-core/vm/opcodes.h
+6 -2
View File
@@ -79,8 +79,12 @@ typedef enum
*/
typedef enum : idx_t
{
OPCODE_SCOPE_CODE_FLAGS__NO_FLAGS = (0u), /**< initializer for empty flag set */
OPCODE_SCOPE_CODE_FLAGS_STRICT = (1u << 0), /**< code is strict mode code */
OPCODE_SCOPE_CODE_FLAGS__EMPTY = (0u), /**< initializer for empty flag set */
OPCODE_SCOPE_CODE_FLAGS_STRICT = (1u << 0), /**< code is strict mode code */
OPCODE_SCOPE_CODE_FLAGS_NOT_REF_ARGUMENTS_IDENTIFIER = (1u << 1), /**< code doesn't reference
* 'arguments' identifier */
OPCODE_SCOPE_CODE_FLAGS_NOT_REF_EVAL_IDENTIFIER = (1u << 2) /**< code doesn't reference
* 'eval' identifier */
} opcode_scope_code_flags_t;
/**
jerry-core/vm/pretty-printer.cpp
+24 -7
View File
@@ -627,15 +627,32 @@ pp_op_meta (opcode_counter_t oc, op_meta opm, bool rewrite)
}
case OPCODE_META_TYPE_SCOPE_CODE_FLAGS:
{
idx_t scope_flags = opm.op.data.meta.data_1;
if (scope_flags & OPCODE_SCOPE_CODE_FLAGS_STRICT)
if (opm.op.data.meta.data_1 != INVALID_VALUE)
{
printf ("[use strict] ");
scope_flags &= (idx_t) ~(OPCODE_SCOPE_CODE_FLAGS_STRICT);
}
idx_t scope_flags = opm.op.data.meta.data_1;
JERRY_ASSERT (scope_flags == 0);
if (scope_flags & OPCODE_SCOPE_CODE_FLAGS_STRICT)
{
printf ("[use strict] ");
scope_flags &= (idx_t) ~(OPCODE_SCOPE_CODE_FLAGS_STRICT);
}
if (scope_flags & OPCODE_SCOPE_CODE_FLAGS_NOT_REF_ARGUMENTS_IDENTIFIER)
{
printf ("[no 'arguments'] ");
scope_flags &= (idx_t) ~(OPCODE_SCOPE_CODE_FLAGS_NOT_REF_ARGUMENTS_IDENTIFIER);
}
if (scope_flags & OPCODE_SCOPE_CODE_FLAGS_NOT_REF_EVAL_IDENTIFIER)
{
printf ("[no 'eval'] ");
scope_flags &= (idx_t) ~(OPCODE_SCOPE_CODE_FLAGS_NOT_REF_EVAL_IDENTIFIER);
}
JERRY_ASSERT (scope_flags == 0);
}
else
{
printf ("[to be rewritten]");
}
break;
}