JSValue createUndefinedVariableError(ExecState* exec, const Identifier& ident, unsigned bytecodeOffset, CodeBlock* codeBlock)
{
int startOffset = 0;
int endOffset = 0;
int divotPoint = 0;
int line = codeBlock->expressionRangeForBytecodeOffset(exec, bytecodeOffset, divotPoint, startOffset, endOffset);
UString message(makeUString("Can't find variable: ", ident.ustring()));
JSObject* exception = addErrorInfo(exec, createReferenceError(exec, message), line, codeBlock->ownerExecutable()->source(), divotPoint, startOffset, endOffset);
return exception;
}
JSValue createNotAFunctionError(ExecState* exec, JSValue value, unsigned bytecodeOffset, CodeBlock* codeBlock)
{
int startOffset = 0;
int endOffset = 0;
int divotPoint = 0;
int line = codeBlock->expressionRangeForBytecodeOffset(exec, bytecodeOffset, divotPoint, startOffset, endOffset);
UString errorMessage = createErrorMessage(exec, codeBlock, line, divotPoint - startOffset, divotPoint, value, "not a function");
JSObject* exception = addErrorInfo(exec, createTypeError(exec, errorMessage), line, codeBlock->ownerExecutable()->source(), divotPoint, startOffset, endOffset);
return exception;
}
JSObject* createInvalidParamError(ExecState* exec, const char* op, JSValue value, unsigned bytecodeOffset, CodeBlock* codeBlock)
{
int startOffset = 0;
int endOffset = 0;
int divotPoint = 0;
int line = codeBlock->expressionRangeForBytecodeOffset(exec, bytecodeOffset, divotPoint, startOffset, endOffset);
UString errorMessage = createErrorMessage(exec, codeBlock, line, divotPoint, divotPoint + endOffset, value, makeUString("not a valid argument for '", op, "'"));
JSObject* exception = addErrorInfo(exec, createTypeError(exec, errorMessage), line, codeBlock->ownerExecutable()->source(), divotPoint, startOffset, endOffset);
return exception;
}
JSObject* addErrorInfo(ExecState* exec, JSObject* error, int line, const SourceCode& source)
{
JSGlobalData* globalData = &exec->globalData();
addErrorInfo(globalData, error, line, source);
JSArray* stack = constructEmptyArray(exec);
CallFrame* frame = exec;
JSObject* stackFrame;
CodeBlock* codeBlock;
UString sourceURL;
UString functionName;
ReturnAddressPtr pc;
while (!frame->hasHostCallFrameFlag()) {
stackFrame = constructEmptyObject(exec);
codeBlock = frame->codeBlock();
// sourceURL
sourceURL = codeBlock->ownerExecutable()->sourceURL();
stackFrame->putWithAttributes(
globalData, Identifier(globalData, sourceURLPropertyName),
jsString(globalData, sourceURL), ReadOnly | DontDelete
);
// line
if (frame != exec) {
line = codeBlock->lineNumberForBytecodeOffset(codeBlock->bytecodeOffset(pc));
}
stackFrame->putWithAttributes(
globalData, Identifier(globalData, linePropertyName),
jsNumber(line), ReadOnly | DontDelete
);
// function
JSObject* function = frame->callee();
if (function && function->inherits(&JSFunction::s_info)) {
functionName = asFunction(function)->calculatedDisplayName(exec);
stackFrame->putWithAttributes(
globalData, Identifier(globalData, functionPropertyName),
jsString(globalData, functionName), ReadOnly | DontDelete
);
}
stack->push(exec, JSValue(stackFrame));
pc = frame->returnPC();
frame = frame->callerFrame();
}
error->putWithAttributes(globalData, Identifier(globalData, stackPropertyName), stack, ReadOnly | DontDelete);
return error;
}
JSObject* ProgramExecutable::checkSyntax(ExecState* exec)
{
int errLine;
UString errMsg;
JSGlobalData* globalData = &exec->globalData();
JSGlobalObject* lexicalGlobalObject = exec->lexicalGlobalObject();
RefPtr<ProgramNode> programNode = globalData->parser->parse<ProgramNode>(globalData, lexicalGlobalObject->debugger(), exec, m_source, &errLine, &errMsg);
if (!programNode)
return addErrorInfo(globalData, createSyntaxError(lexicalGlobalObject, errMsg), errLine, m_source);
return 0;
}
JSObject* createNotAConstructorError(ExecState* exec, JSValue value, unsigned bytecodeOffset, CodeBlock* codeBlock)
{
int startOffset = 0;
int endOffset = 0;
int divotPoint = 0;
int line = codeBlock->expressionRangeForBytecodeOffset(exec, bytecodeOffset, divotPoint, startOffset, endOffset);
// We're in a "new" expression, so we need to skip over the "new.." part
int startPoint = divotPoint - (startOffset ? startOffset - 4 : 0); // -4 for "new "
const UChar* data = codeBlock->source()->data();
while (startPoint < divotPoint && isStrWhiteSpace(data[startPoint]))
startPoint++;
UString errorMessage = createErrorMessage(exec, codeBlock, line, startPoint, divotPoint, value, "not a constructor");
JSObject* exception = addErrorInfo(exec, createTypeError(exec, errorMessage), line, codeBlock->ownerExecutable()->source(), divotPoint, startOffset, endOffset);
return exception;
}
JSObject* createNotAnObjectError(ExecState* exec, JSNotAnObjectErrorStub* error, unsigned bytecodeOffset, CodeBlock* codeBlock)
{
// Both op_create_this and op_instanceof require a use of op_get_by_id to get
// the prototype property from an object. The exception messages for exceptions
// thrown by these instances op_get_by_id need to reflect this.
OpcodeID followingOpcodeID;
if (codeBlock->getByIdExceptionInfoForBytecodeOffset(exec, bytecodeOffset, followingOpcodeID)) {
ASSERT(followingOpcodeID == op_create_this || followingOpcodeID == op_instanceof);
if (followingOpcodeID == op_create_this)
return createNotAConstructorError(exec, error->isNull() ? jsNull() : jsUndefined(), bytecodeOffset, codeBlock);
return createInvalidParamError(exec, "instanceof", error->isNull() ? jsNull() : jsUndefined(), bytecodeOffset, codeBlock);
}
int startOffset = 0;
int endOffset = 0;
int divotPoint = 0;
int line = codeBlock->expressionRangeForBytecodeOffset(exec, bytecodeOffset, divotPoint, startOffset, endOffset);
UString errorMessage = createErrorMessage(exec, codeBlock, line, divotPoint - startOffset, divotPoint, error->isNull() ? jsNull() : jsUndefined(), "not an object");
JSObject* exception = addErrorInfo(exec, createTypeError(exec, errorMessage), line, codeBlock->ownerExecutable()->source(), divotPoint, startOffset, endOffset);
return exception;
}
JSObject* ProgramExecutable::compile(ExecState* exec, ScopeChainNode* scopeChainNode)
{
int errLine;
UString errMsg;
JSGlobalData* globalData = &exec->globalData();
JSGlobalObject* lexicalGlobalObject = exec->lexicalGlobalObject();
RefPtr<ProgramNode> programNode = globalData->parser->parse<ProgramNode>(globalData, lexicalGlobalObject->debugger(), exec, m_source, &errLine, &errMsg);
if (!programNode)
return addErrorInfo(globalData, createSyntaxError(lexicalGlobalObject, errMsg), errLine, m_source);
recordParse(programNode->features(), programNode->lineNo(), programNode->lastLine());
ScopeChain scopeChain(scopeChainNode);
JSGlobalObject* globalObject = scopeChain.globalObject();
ASSERT(!m_programCodeBlock);
m_programCodeBlock = new ProgramCodeBlock(this, GlobalCode, globalObject, source().provider());
OwnPtr<BytecodeGenerator> generator(new BytecodeGenerator(programNode.get(), globalObject->debugger(), scopeChain, &globalObject->symbolTable(), m_programCodeBlock));
generator->generate();
programNode->destroyData();
return 0;
}
TiObject* addErrorInfo(TiExcState* exec, TiObject* error, int line, const SourceCode& source)
{
return addErrorInfo(&exec->globalData(), error, line, source);
}
JSObject* addErrorInfo(ExecState* exec, JSObject* error, int line, const SourceCode& source)
{
JSGlobalData* globalData = &exec->globalData();
addErrorInfo(globalData, error, line, source);
UStringBuilder stackString;
JSArray* stackArray = constructEmptyArray(exec);
CallFrame* frame = exec;
stackString.append(error->toString(exec));
bool functionKnown;
ReturnAddressPtr pc;
while (!frame->hasHostCallFrameFlag()) {
CodeBlock* codeBlock = frame->codeBlock();
JSObject* arrayItem = constructEmptyObject(exec);
stackString.append("\n at ");
JSObject* callee = frame->callee();
UString functionName;
if (callee && callee->inherits(&JSFunction::s_info)) {
functionName = asFunction(callee)->calculatedDisplayName(exec);
functionKnown = !functionName.isEmpty();
} else {
functionKnown = false;
}
if (functionKnown) {
stackString.append(functionName);
stackString.append(" (");
arrayItem->putWithAttributes(
globalData, Identifier(globalData, functionPropertyName),
jsString(globalData, functionName), ReadOnly | DontDelete
);
}
UString sourceURL = codeBlock->ownerExecutable()->sourceURL();
arrayItem->putWithAttributes(
globalData, Identifier(globalData, sourceURLPropertyName),
jsString(globalData, sourceURL), ReadOnly | DontDelete
);
stackString.append(sourceURL);
stackString.append(":");
if (frame != exec) {
line = codeBlock->lineNumberForBytecodeOffset(codeBlock->bytecodeOffset(pc));
}
arrayItem->putWithAttributes(
globalData, Identifier(globalData, linePropertyName),
jsNumber(line), ReadOnly | DontDelete
);
stackString.append(UString::number(line));
if (functionKnown) {
stackString.append(")");
}
stackArray->push(exec, JSValue(arrayItem));
pc = frame->returnPC();
frame = frame->callerFrame();
}
error->putWithAttributes(
globalData, Identifier(globalData, stackPropertyName),
jsString(globalData, stackString.toUString()), ReadOnly | DontDelete
);
error->putWithAttributes(
globalData, Identifier(globalData, "stackArray"),
stackArray, ReadOnly | DontDelete
);
return error;
}