gecko-dev/browser/devtools/debugger/test/browser_dbg_parser-01.js

32 lines
861 B
JavaScript

/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
/**
* Check that simple JS can be parsed and cached with the reflection API.
*/
function test() {
let { Parser } = Cu.import("resource:///modules/devtools/Parser.jsm", {});
let source = "let x = 42;";
let parser = new Parser();
let first = parser.get(source);
let second = parser.get(source);
isnot(first, second,
"The two syntax trees should be different.");
let third = parser.get(source, "url");
let fourth = parser.get(source, "url");
isnot(first, third,
"The new syntax trees should be different than the old ones.");
is(third, fourth,
"The new syntax trees were cached once an identifier was specified.");
is(parser.errors.length, 0,
"There should be no errors logged when parsing.");
finish();
}