JavaScriptCore-7601.1.46.3.tar.gz

[apple/javascriptcore.git] / interpreter / CallFrame.cpp

diff --git a/interpreter/CallFrame.cpp b/interpreter/CallFrame.cpp
index df19d7fce144e208bf04b862701c8a22e992e6bb..259061df49d1a1ef1921f676fe3c252ddf7e83f7 100644 (file)
--- a/interpreter/CallFrame.cpp
+++ b/interpreter/CallFrame.cpp
@@ -29,7 +29,7 @@
 #include "CallFrameInlines.h"
 #include "CodeBlock.h"
 #include "Interpreter.h"
-#include "JSActivation.h"
+#include "JSLexicalEnvironment.h"
 #include "JSCInlines.h"
 #include "VMEntryScope.h"
 #include <wtf/StringPrintStream.h>
@@ -136,20 +136,36 @@ JSGlobalObject* CallFrame::vmEntryGlobalObject()
     return vm().entryScope->globalObject();
 }
 
-JSActivation* CallFrame::activation() const
+CallFrame* CallFrame::callerFrame(VMEntryFrame*& currVMEntryFrame)
+{
+    if (callerFrameOrVMEntryFrame() == currVMEntryFrame) {
+        VMEntryRecord* currVMEntryRecord = vmEntryRecord(currVMEntryFrame);
+        currVMEntryFrame = currVMEntryRecord->prevTopVMEntryFrame();
+        return currVMEntryRecord->prevTopCallFrame();
+    }
+    return static_cast<CallFrame*>(callerFrameOrVMEntryFrame());
+}
+
+JSLexicalEnvironment* CallFrame::lexicalEnvironment() const
 {
     CodeBlock* codeBlock = this->codeBlock();
     RELEASE_ASSERT(codeBlock->needsActivation());
     VirtualRegister activationRegister = codeBlock->activationRegister();
-    return registers()[activationRegister.offset()].Register::activation();
+    return registers()[activationRegister.offset()].Register::lexicalEnvironment();
 }
 
-void CallFrame::setActivation(JSActivation* activation)
+JSLexicalEnvironment* CallFrame::lexicalEnvironmentOrNullptr() const
+{
+    CodeBlock* codeBlock = this->codeBlock();
+    return codeBlock->needsActivation() ? lexicalEnvironment() : nullptr;
+}
+    
+void CallFrame::setActivation(JSLexicalEnvironment* lexicalEnvironment)
 {
     CodeBlock* codeBlock = this->codeBlock();
     RELEASE_ASSERT(codeBlock->needsActivation());
     VirtualRegister activationRegister = codeBlock->activationRegister();
-    registers()[activationRegister.offset()] = activation;
+    registers()[activationRegister.offset()] = lexicalEnvironment;
 }
 
 void CallFrame::dump(PrintStream& out)