示例#1
0
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;
}
示例#2
0
    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);
}
示例#3
0
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;
}