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optimize trivial IIFEs returning constants (#1530)

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This commit is contained in:
kzc
2017-03-02 02:11:40 -05:00
committed by Alex Lam S.L
parent 9699ffb1af
commit ee3b39b909
5 changed files with 91 additions and 17 deletions
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4
test/mocha/minify.js
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@@ -155,7 +155,7 @@ describe("minify", function() {
assert.strictEqual(code, "// comment1 comment2\nbar();");
});
it("should not drop #__PURE__ hint if function is retained", function() {
var result = Uglify.minify("var a = /*#__PURE__*/(function(){return 1})();", {
var result = Uglify.minify("var a = /*#__PURE__*/(function(){ foo(); })();", {
fromString: true,
output: {
comments: "all",
@@ -163,7 +163,7 @@ describe("minify", function() {
}
});
var code = result.code;
assert.strictEqual(code, "var a=/*#__PURE__*/function(){return 1}();");
assert.strictEqual(code, "var a=/*#__PURE__*/function(){foo()}();");
})
});