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improve usability of name cache under minify() (#2176)

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fixes #2174
This commit is contained in:
Alex Lam S.L
2017-06-29 12:48:34 +08:00
committed by GitHub
parent 5e6f26445f
commit bdeadffbf5
4 changed files with 140 additions and 28 deletions
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53
test/mocha/minify.js
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@@ -1,6 +1,7 @@
var Uglify = require('../../');
var assert = require("assert");
var readFileSync = require("fs").readFileSync;
var run_code = require("../sandbox").run_code;
function read(path) {
return readFileSync(path, "utf8");
@@ -20,6 +21,58 @@ describe("minify", function() {
assert.strictEqual(result.code, "alert(2);");
});
it("Should work with mangle.cache", function() {
var cache = {};
var original = "";
var compressed = "";
[
"bar.es5",
"baz.es5",
"foo.es5",
"qux.js",
].forEach(function(file) {
var code = read("test/input/issue-1242/" + file);
var result = Uglify.minify(code, {
mangle: {
cache: cache,
toplevel: true
}
});
if (result.error) throw result.error;
original += code;
compressed += result.code;
});
assert.strictEqual(JSON.stringify(cache).slice(0, 20), '{"cname":5,"props":{');
assert.strictEqual(compressed, 'function n(n){return 3*n}function r(n){return n/2}function c(o){l("Foo:",2*o)}var l=console.log.bind(console);var f=n(3),i=r(12);l("qux",f,i),c(11);');
assert.strictEqual(run_code(compressed), run_code(original));
});
it("Should work with nameCache", function() {
var cache = {};
var original = "";
var compressed = "";
[
"bar.es5",
"baz.es5",
"foo.es5",
"qux.js",
].forEach(function(file) {
var code = read("test/input/issue-1242/" + file);
var result = Uglify.minify(code, {
mangle: {
toplevel: true
},
nameCache: cache
});
if (result.error) throw result.error;
original += code;
compressed += result.code;
});
assert.strictEqual(JSON.stringify(cache).slice(0, 28), '{"vars":{"cname":5,"props":{');
assert.strictEqual(compressed, 'function n(n){return 3*n}function r(n){return n/2}function c(o){l("Foo:",2*o)}var l=console.log.bind(console);var f=n(3),i=r(12);l("qux",f,i),c(11);');
assert.strictEqual(run_code(compressed), run_code(original));
});
describe("keep_quoted_props", function() {
it("Should preserve quotes in object literals", function() {
var js = 'var foo = {"x": 1, y: 2, \'z\': 3};';