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Unified Diff: src/runtime/runtime-scopes.cc

Issue 1272673003: [es6] Re-implement rest parameters via desugaring. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Rebase + fix brokenness Created 5 years, 4 months ago
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Index: src/runtime/runtime-scopes.cc
diff --git a/src/runtime/runtime-scopes.cc b/src/runtime/runtime-scopes.cc
index fa8f7a811a8d96c91eb2fa30e9627f278df0df34..3160087042b48ff7b57f61b73e46b3879180c1b6 100644
--- a/src/runtime/runtime-scopes.cc
+++ b/src/runtime/runtime-scopes.cc
@@ -555,54 +555,6 @@ RUNTIME_FUNCTION(Runtime_NewStrictArguments) {
}
-static Handle<JSArray> NewRestParam(Isolate* isolate, Object** parameters,
- int num_params, int rest_index,
- LanguageMode language_mode) {
- parameters -= rest_index;
- int num_elements = std::max(0, num_params - rest_index);
- Handle<FixedArray> elements =
- isolate->factory()->NewUninitializedFixedArray(num_elements);
- for (int i = 0; i < num_elements; ++i) {
- elements->set(i, *--parameters);
- }
- return isolate->factory()->NewJSArrayWithElements(
- elements, FAST_ELEMENTS, num_elements, strength(language_mode));
-}
-
-
-RUNTIME_FUNCTION(Runtime_NewRestParam) {
- HandleScope scope(isolate);
- DCHECK(args.length() == 4);
- Object** parameters = reinterpret_cast<Object**>(args[0]);
- CONVERT_SMI_ARG_CHECKED(num_params, 1);
- CONVERT_SMI_ARG_CHECKED(rest_index, 2);
- CONVERT_SMI_ARG_CHECKED(language_mode, 3);
-
- return *NewRestParam(isolate, parameters, num_params, rest_index,
- static_cast<LanguageMode>(language_mode));
-}
-
-
-RUNTIME_FUNCTION(Runtime_NewRestParamSlow) {
- HandleScope scope(isolate);
- DCHECK(args.length() == 2);
- CONVERT_SMI_ARG_CHECKED(rest_index, 0);
- CONVERT_SMI_ARG_CHECKED(language_mode, 1);
-
- JavaScriptFrameIterator it(isolate);
-
- // Find the frame that holds the actual arguments passed to the function.
- it.AdvanceToArgumentsFrame();
- JavaScriptFrame* frame = it.frame();
-
- int argument_count = frame->GetArgumentsLength();
- Object** parameters = reinterpret_cast<Object**>(frame->GetParameterSlot(-1));
-
- return *NewRestParam(isolate, parameters, argument_count, rest_index,
- static_cast<LanguageMode>(language_mode));
-}
-
-
RUNTIME_FUNCTION(Runtime_NewClosureFromStubFailure) {
HandleScope scope(isolate);
DCHECK(args.length() == 1);
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