22 lines
866 B
JavaScript
22 lines
866 B
JavaScript
var UglifyJS = require('../../');
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var assert = require("assert");
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describe("arguments", function() {
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it("Should known that arguments in functions are local scoped", function() {
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var ast = UglifyJS.parse("var arguments; var f = function() {arguments.length}");
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ast.figure_out_scope();
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// Test scope of `var arguments`
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assert.strictEqual(ast.find_variable("arguments").global, true);
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// Select arguments symbol in function
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var symbol = ast.body[1].definitions[0].value.find_variable("arguments");
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assert.strictEqual(symbol.global, false);
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assert.strictEqual(symbol.scope, ast. // From ast
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body[1]. // Select 2nd statement (equals to `var f ...`)
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definitions[0]. // First definition of selected statement
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value // Select function as scope
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);
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});
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}); |