static nsresult
ToStringHelper(const char* aSeverity, const nsString& aMessage,
const nsString& aSourceName, const nsString* aSourceLine,
uint32_t aLineNumber, uint32_t aColumnNumber,
nsACString& /*UTF8*/ aResult)
{
static const char format0[] =
"[%s: \"%s\" {file: \"%s\" line: %d column: %d source: \"%s\"}]";
static const char format1[] =
"[%s: \"%s\" {file: \"%s\" line: %d}]";
static const char format2[] =
"[%s: \"%s\"]";
JS::UniqueChars temp;
char* tempMessage = nullptr;
char* tempSourceName = nullptr;
char* tempSourceLine = nullptr;
if (!aMessage.IsEmpty())
tempMessage = ToNewUTF8String(aMessage);
if (!aSourceName.IsEmpty())
// Use at most 512 characters from mSourceName.
tempSourceName = ToNewUTF8String(StringHead(aSourceName, 512));
if (aSourceLine && !aSourceLine->IsEmpty())
// Use at most 512 characters from mSourceLine.
tempSourceLine = ToNewUTF8String(StringHead(*aSourceLine, 512));
if (nullptr != tempSourceName && nullptr != tempSourceLine) {
temp = JS_smprintf(format0,
aSeverity,
tempMessage,
tempSourceName,
aLineNumber,
aColumnNumber,
tempSourceLine);
} else if (!aSourceName.IsEmpty()) {
temp = JS_smprintf(format1,
aSeverity,
tempMessage,
tempSourceName,
aLineNumber);
} else {
temp = JS_smprintf(format2,
aSeverity,
tempMessage);
}
if (nullptr != tempMessage)
free(tempMessage);
if (nullptr != tempSourceName)
free(tempSourceName);
if (nullptr != tempSourceLine)
free(tempSourceLine);
if (!temp)
return NS_ERROR_OUT_OF_MEMORY;
aResult.Assign(temp.get());
return NS_OK;
}
print_one(const char *expect, const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
JS::UniqueChars output = JS_vsmprintf(fmt, ap);
va_end(ap);
return output && !strcmp(output.get(), expect);
}
bool
nsJSUtils::GetCallingLocation(JSContext* aContext, nsAString& aFilename,
uint32_t* aLineno, uint32_t* aColumn)
{
JS::UniqueChars filename;
if (!JS::DescribeScriptedCaller(aContext, &filename, aLineno, aColumn)) {
return false;
}
aFilename.Assign(NS_ConvertUTF8toUTF16(filename.get()));
return true;
}