Function exception

tools/utils/buildmessage.js:511–555

(error)

// actually occurred, rather than the place where the exception was
// thrown.
var exception = function (error) {
  if (! currentJob.get()) {
    // XXX this may be the wrong place to do this, but it makes syntax errors in
    // files loaded via isopack.load have context.
    if (error instanceof files.FancySyntaxError) {
      error = new Error("Syntax error: " + error.message + " at " +
        error.file + ":" + error.line + ":" + error.column);
    }
    throw error;
  }

  var message = error.message;

  if (error instanceof files.FancySyntaxError) {
    // No stack, because FancySyntaxError isn't a real Error and has no stack
    // property!
    currentJob.get().addMessage({
      message: message,
      file: error.file,
      line: error.line,
      column: error.column
    });
  } else {
    var parsed = parseStack.parse(error);

    // If there is a part inside the fiber, that's the one we want. Otherwise,
    // use the one outside.
    var stack = parsed.insideFiber || parsed.outsideFiber;
    if (stack && stack.length > 0) {
      var locus = stack[0];
      currentJob.get().addMessage({
        message: message,
        stack: stack,
        func: locus.func,
        file: locus.file,
        line: locus.line,
        column: locus.column
      });
    } else {
      currentJob.get().addMessage({
        message: message
      });
    }
  }
};

var assertInJob = function () {
  if (! currentJob.get()) {