24 lines
958 B
JavaScript
24 lines
958 B
JavaScript
let assert = require("assert");
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let UglifyJS = require("../node");
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describe("With", function() {
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it("Should throw syntaxError when using with statement in strict mode", function() {
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let code = '"use strict";\nthrow NotEarlyError;\nwith ({}) { }';
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let test = function() {
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UglifyJS.parse(code);
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}
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let error = function(e) {
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return e instanceof UglifyJS.JS_Parse_Error
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&& e.message === "Strict mode may not include a with statement";
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}
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assert.throws(test, error);
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});
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it("Should set uses_with for scopes involving With statements", function() {
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let ast = UglifyJS.parse("with(e) {f(1, 2)}");
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ast.figure_out_scope();
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assert.equal(ast.uses_with, true);
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assert.equal(ast.body[0].expression.scope.resolve().uses_with, true);
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assert.equal(ast.body[0].body.body[0].body.expression.scope.resolve().uses_with, true);
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});
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});
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