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Diffstat (limited to 'Source/JavaScriptCore/interpreter/CallFrame.h')
| -rw-r--r-- | Source/JavaScriptCore/interpreter/CallFrame.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/interpreter/CallFrame.h b/Source/JavaScriptCore/interpreter/CallFrame.h index 7aa49a9b0..2b0ea3aac 100644 --- a/Source/JavaScriptCore/interpreter/CallFrame.h +++ b/Source/JavaScriptCore/interpreter/CallFrame.h @@ -256,6 +256,7 @@ namespace JSC { CodeBlock* someCodeBlockForPossiblyInlinedCode() { return codeBlock(); } #endif + CallFrame* callerFrameNoFlags() { return callerFrame()->removeHostCallFrameFlag(); } // Call this to get the true call frame (accounted for inlining and any // other optimizations), when you have entered into VM code through one @@ -281,6 +282,36 @@ namespace JSC { ExecState(); ~ExecState(); + // The following are for internal use in debugging and verification + // code only and not meant as an API for general usage: + + size_t argIndexForRegister(Register* reg) + { + // The register at 'offset' number of slots from the frame pointer + // i.e. + // reg = frame[offset]; + // ==> reg = frame + offset; + // ==> offset = reg - frame; + int offset = reg - this->registers(); + + // The offset is defined (based on argumentOffset()) to be: + // offset = s_firstArgumentOffset - argIndex; + // Hence: + // argIndex = s_firstArgumentOffset - offset; + size_t argIndex = s_firstArgumentOffset - offset; + return argIndex; + } + + JSValue getArgumentUnsafe(size_t argIndex) + { + // User beware! This method does not verify that there is a valid + // argument at the specified argIndex. This is used for debugging + // and verification code only. The caller is expected to know what + // he/she is doing when calling this method. + return this[argumentOffset(argIndex)].jsValue(); + } + + friend class JSStack; friend class VMInspector; }; |