[ES6] Implement Proxy.[[Construct]]
https://bugs.webkit.org/show_bug.cgi?id=154440
Reviewed by Oliver Hunt.
This patch is mostly an implementation of
Proxy.[[Construct]] with respect to section 9.5.13
of the ECMAScript spec.
https://tc39.github.io/ecma262/#sec-proxy-object-internal-methods-and-internal-slots-construct-argumentslist-newtarget
This patch also changes op_create_this to accept new.target's
that aren't JSFunctions. This is necessary implementing Proxy.[[Construct]]
because we might construct a JSFunction with a new.target being
a Proxy. This will also be needed when we implement Reflect.construct.
* dfg/DFGOperations.cpp:
* dfg/DFGSpeculativeJIT32_64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
* dfg/DFGSpeculativeJIT64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
* jit/JITOpcodes.cpp:
(JSC::JIT::emit_op_create_this):
(JSC::JIT::emitSlow_op_create_this):
* jit/JITOpcodes32_64.cpp:
(JSC::JIT::emit_op_create_this):
(JSC::JIT::emitSlow_op_create_this):
* llint/LLIntData.cpp:
(JSC::LLInt::Data::performAssertions):
* llint/LowLevelInterpreter.asm:
* llint/LowLevelInterpreter32_64.asm:
* llint/LowLevelInterpreter64.asm:
* runtime/CommonSlowPaths.cpp:
(JSC::SLOW_PATH_DECL):
* runtime/ProxyObject.cpp:
(JSC::ProxyObject::finishCreation):
(JSC::ProxyObject::visitChildren):
(JSC::performProxyConstruct):
(JSC::ProxyObject::getConstructData):
* runtime/ProxyObject.h:
* tests/es6.yaml:
* tests/stress/proxy-construct.js: Added.
(assert):
(throw.new.Error.let.target):
(throw.new.Error):
(assert.let.target):
(assert.let.handler.get construct):
(let.target):
(let.handler.construct):
(i.catch):
(assert.let.handler.construct):
(assert.let.construct):
(assert.else.assert.let.target):
(assert.else.assert.let.construct):
(assert.else.assert):
(new.proxy.let.target):
(new.proxy.let.construct):
(new.proxy):
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@196868 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/JavaScriptCore/dfg/DFGOperations.cpp b/Source/JavaScriptCore/dfg/DFGOperations.cpp
index 2fd5dbd..06d16ad9 100644
--- a/Source/JavaScriptCore/dfg/DFGOperations.cpp
+++ b/Source/JavaScriptCore/dfg/DFGOperations.cpp
@@ -164,8 +164,10 @@
{
VM& vm = exec->vm();
NativeCallFrameTracer tracer(&vm, exec);
+ if (constructor->type() == JSFunctionType)
+ return constructEmptyObject(exec, jsCast<JSFunction*>(constructor)->rareData(exec, inlineCapacity)->objectAllocationProfile()->structure());
- return constructEmptyObject(exec, jsCast<JSFunction*>(constructor)->rareData(exec, inlineCapacity)->objectAllocationProfile()->structure());
+ return constructEmptyObject(exec);
}
EncodedJSValue JIT_OPERATION operationValueBitAnd(ExecState* exec, EncodedJSValue encodedOp1, EncodedJSValue encodedOp2)
