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Replacing 'this_arg' meta opcode with more general 'call site additional information' meta opcode with flags describing the call site features, and, optionally, 'this' argument.

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Introducing opcode_call_flags_t for argument of the new meta opcode, currently with two flags: 'have this argument' and '"direct call to eval" form'.

JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com
This commit is contained in:
Ruben Ayrapetyan
2015-06-10 21:47:09 +03:00
parent 6fadcd3f84
commit 446e8bf989
7 changed files with 149 additions and 49 deletions
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jerry-core/vm/opcodes.h
+13 -1
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@@ -59,7 +59,8 @@ typedef enum
typedef enum
{
OPCODE_META_TYPE_UNDEFINED, /**< undefined meta (should be rewritten) */
OPCODE_META_TYPE_THIS_ARG, /**< value (var_idx) of this used during call */
OPCODE_META_TYPE_CALL_SITE_INFO, /**< optional additional information about call site
* (includes opcode_call_flags_t and can include 'this' argument) */
OPCODE_META_TYPE_VARG, /**< element (var_idx) of arguments' list */
OPCODE_META_TYPE_VARG_PROP_DATA, /**< name (lit_idx) and value (var_idx) for a data property descriptor */
OPCODE_META_TYPE_VARG_PROP_GETTER, /**< name (lit_idx) and getter (var_idx) for an accessor property descriptor */
@@ -74,6 +75,17 @@ typedef enum
* (See also: opcode_scope_code_flags_t) */
} opcode_meta_type;
typedef enum : idx_t
{
OPCODE_CALL_FLAGS__EMPTY = (0u), /**< initializer for empty flag set */
OPCODE_CALL_FLAGS_HAVE_THIS_ARG = (1u << 0), /**< flag, indicating that call is performed
* with 'this' argument specified */
OPCODE_CALL_FLAGS_DIRECT_CALL_TO_EVAL_FORM = (1u << 1) /**< flag, indicating that call is performed
* in form 'eval (...)', i.e. through 'eval' string
* without object base (i.e. with lexical environment
* as base), so it can be a direct call to eval */
} opcode_call_flags_t;
/**
* Flags indicating various properties of a scope's code
*/