X-Git-Url: https://git.saurik.com/apple/javascriptcore.git/blobdiff_plain/9dae56ea45a0f5f8136a5c93d6f3a7f99399ca73..f9bf01c6616d5ddcf65b13b33cedf9e387ff7a63:/runtime/ExceptionHelpers.cpp diff --git a/runtime/ExceptionHelpers.cpp b/runtime/ExceptionHelpers.cpp index 30f1503..9bb740e 100644 --- a/runtime/ExceptionHelpers.cpp +++ b/runtime/ExceptionHelpers.cpp @@ -51,99 +51,79 @@ public: virtual UString toString(ExecState*) const { return "JavaScript execution exceeded timeout."; } }; -JSValuePtr createInterruptedExecutionException(JSGlobalData* globalData) +JSValue createInterruptedExecutionException(JSGlobalData* globalData) { return new (globalData) InterruptedExecutionError(globalData); } -static JSValuePtr createError(ExecState* exec, ErrorType e, const char* msg) +static JSValue createError(ExecState* exec, ErrorType e, const char* msg) { return Error::create(exec, e, msg, -1, -1, 0); } -JSValuePtr createStackOverflowError(ExecState* exec) +JSValue createStackOverflowError(ExecState* exec) { return createError(exec, RangeError, "Maximum call stack size exceeded."); } -JSValuePtr createUndefinedVariableError(ExecState* exec, const Identifier& ident, unsigned bytecodeOffset, CodeBlock* codeBlock) +JSValue createTypeError(ExecState* exec, const char* message) +{ + return createError(exec, TypeError, message); +} + +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 = "Can't find variable: "; - message.append(ident.ustring()); - JSObject* exception = Error::create(exec, ReferenceError, message, line, codeBlock->ownerNode()->sourceID(), codeBlock->ownerNode()->sourceURL()); + JSObject* exception = Error::create(exec, ReferenceError, makeString("Can't find variable: ", ident.ustring()), line, codeBlock->ownerExecutable()->sourceID(), codeBlock->ownerExecutable()->sourceURL()); exception->putWithAttributes(exec, Identifier(exec, expressionBeginOffsetPropertyName), jsNumber(exec, divotPoint - startOffset), ReadOnly | DontDelete); exception->putWithAttributes(exec, Identifier(exec, expressionCaretOffsetPropertyName), jsNumber(exec, divotPoint), ReadOnly | DontDelete); exception->putWithAttributes(exec, Identifier(exec, expressionEndOffsetPropertyName), jsNumber(exec, divotPoint + endOffset), ReadOnly | DontDelete); return exception; } -static UString createErrorMessage(ExecState* exec, CodeBlock* codeBlock, int, int expressionStart, int expressionStop, JSValuePtr value, UString error) +static UString createErrorMessage(ExecState* exec, CodeBlock* codeBlock, int, int expressionStart, int expressionStop, JSValue value, UString error) { - if (!expressionStop || expressionStart > codeBlock->source()->length()) { - UString errorText = value.toString(exec); - errorText.append(" is "); - errorText.append(error); - return errorText; - } + if (!expressionStop || expressionStart > codeBlock->source()->length()) + return makeString(value.toString(exec), " is ", error); + if (expressionStart < expressionStop) + return makeString("Result of expression '", codeBlock->source()->getRange(expressionStart, expressionStop), "' [", value.toString(exec), "] is ", error, "."); - UString errorText = "Result of expression "; - - if (expressionStart < expressionStop) { - errorText.append('\''); - errorText.append(codeBlock->source()->getRange(expressionStart, expressionStop)); - errorText.append("' ["); - errorText.append(value.toString(exec)); - errorText.append("] is "); - } else { - // No range information, so give a few characters of context - const UChar* data = codeBlock->source()->data(); - int dataLength = codeBlock->source()->length(); - int start = expressionStart; - int stop = expressionStart; - // Get up to 20 characters of context to the left and right of the divot, clamping to the line. - // then strip whitespace. - while (start > 0 && (expressionStart - start < 20) && data[start - 1] != '\n') - start--; - while (start < (expressionStart - 1) && isStrWhiteSpace(data[start])) - start++; - while (stop < dataLength && (stop - expressionStart < 20) && data[stop] != '\n') - stop++; - while (stop > expressionStart && isStrWhiteSpace(data[stop])) - stop--; - errorText.append("near '..."); - errorText.append(codeBlock->source()->getRange(start, stop)); - errorText.append("...' ["); - errorText.append(value.toString(exec)); - errorText.append("] is "); - } - errorText.append(error); - errorText.append("."); - return errorText; + // No range information, so give a few characters of context + const UChar* data = codeBlock->source()->data(); + int dataLength = codeBlock->source()->length(); + int start = expressionStart; + int stop = expressionStart; + // Get up to 20 characters of context to the left and right of the divot, clamping to the line. + // then strip whitespace. + while (start > 0 && (expressionStart - start < 20) && data[start - 1] != '\n') + start--; + while (start < (expressionStart - 1) && isStrWhiteSpace(data[start])) + start++; + while (stop < dataLength && (stop - expressionStart < 20) && data[stop] != '\n') + stop++; + while (stop > expressionStart && isStrWhiteSpace(data[stop])) + stop--; + return makeString("Result of expression near '...", codeBlock->source()->getRange(start, stop), "...' [", value.toString(exec), "] is ", error, "."); } -JSObject* createInvalidParamError(ExecState* exec, const char* op, JSValuePtr value, unsigned bytecodeOffset, CodeBlock* codeBlock) +JSObject* createInvalidParamError(ExecState* exec, const char* op, JSValue value, unsigned bytecodeOffset, CodeBlock* codeBlock) { - UString message = "not a valid argument for '"; - message.append(op); - message.append("'"); - 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, message); - JSObject* exception = Error::create(exec, TypeError, errorMessage, line, codeBlock->ownerNode()->sourceID(), codeBlock->ownerNode()->sourceURL()); + UString errorMessage = createErrorMessage(exec, codeBlock, line, divotPoint, divotPoint + endOffset, value, makeString("not a valid argument for '", op, "'")); + JSObject* exception = Error::create(exec, TypeError, errorMessage, line, codeBlock->ownerExecutable()->sourceID(), codeBlock->ownerExecutable()->sourceURL()); exception->putWithAttributes(exec, Identifier(exec, expressionBeginOffsetPropertyName), jsNumber(exec, divotPoint - startOffset), ReadOnly | DontDelete); exception->putWithAttributes(exec, Identifier(exec, expressionCaretOffsetPropertyName), jsNumber(exec, divotPoint), ReadOnly | DontDelete); exception->putWithAttributes(exec, Identifier(exec, expressionEndOffsetPropertyName), jsNumber(exec, divotPoint + endOffset), ReadOnly | DontDelete); return exception; } -JSObject* createNotAConstructorError(ExecState* exec, JSValuePtr value, unsigned bytecodeOffset, CodeBlock* codeBlock) +JSObject* createNotAConstructorError(ExecState* exec, JSValue value, unsigned bytecodeOffset, CodeBlock* codeBlock) { int startOffset = 0; int endOffset = 0; @@ -157,21 +137,21 @@ JSObject* createNotAConstructorError(ExecState* exec, JSValuePtr value, unsigned startPoint++; UString errorMessage = createErrorMessage(exec, codeBlock, line, startPoint, divotPoint, value, "not a constructor"); - JSObject* exception = Error::create(exec, TypeError, errorMessage, line, codeBlock->ownerNode()->sourceID(), codeBlock->ownerNode()->sourceURL()); + JSObject* exception = Error::create(exec, TypeError, errorMessage, line, codeBlock->ownerExecutable()->sourceID(), codeBlock->ownerExecutable()->sourceURL()); exception->putWithAttributes(exec, Identifier(exec, expressionBeginOffsetPropertyName), jsNumber(exec, divotPoint - startOffset), ReadOnly | DontDelete); exception->putWithAttributes(exec, Identifier(exec, expressionCaretOffsetPropertyName), jsNumber(exec, divotPoint), ReadOnly | DontDelete); exception->putWithAttributes(exec, Identifier(exec, expressionEndOffsetPropertyName), jsNumber(exec, divotPoint + endOffset), ReadOnly | DontDelete); return exception; } -JSValuePtr createNotAFunctionError(ExecState* exec, JSValuePtr value, unsigned bytecodeOffset, CodeBlock* codeBlock) +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 = Error::create(exec, TypeError, errorMessage, line, codeBlock->ownerNode()->sourceID(), codeBlock->ownerNode()->sourceURL()); + JSObject* exception = Error::create(exec, TypeError, errorMessage, line, codeBlock->ownerExecutable()->sourceID(), codeBlock->ownerExecutable()->sourceURL()); exception->putWithAttributes(exec, Identifier(exec, expressionBeginOffsetPropertyName), jsNumber(exec, divotPoint - startOffset), ReadOnly | DontDelete); exception->putWithAttributes(exec, Identifier(exec, expressionCaretOffsetPropertyName), jsNumber(exec, divotPoint), ReadOnly | DontDelete); exception->putWithAttributes(exec, Identifier(exec, expressionEndOffsetPropertyName), jsNumber(exec, divotPoint + endOffset), ReadOnly | DontDelete); @@ -201,7 +181,7 @@ JSObject* createNotAnObjectError(ExecState* exec, JSNotAnObjectErrorStub* error, 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 = Error::create(exec, TypeError, errorMessage, line, codeBlock->ownerNode()->sourceID(), codeBlock->ownerNode()->sourceURL()); + JSObject* exception = Error::create(exec, TypeError, errorMessage, line, codeBlock->ownerExecutable()->sourceID(), codeBlock->ownerExecutable()->sourceURL()); exception->putWithAttributes(exec, Identifier(exec, expressionBeginOffsetPropertyName), jsNumber(exec, divotPoint - startOffset), ReadOnly | DontDelete); exception->putWithAttributes(exec, Identifier(exec, expressionCaretOffsetPropertyName), jsNumber(exec, divotPoint), ReadOnly | DontDelete); exception->putWithAttributes(exec, Identifier(exec, expressionEndOffsetPropertyName), jsNumber(exec, divotPoint + endOffset), ReadOnly | DontDelete);