js/src/jit-test/tests/debug/Script-sourceStart-03.js

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1 /*
2 * For arrow functions, Script.prototype.sourceStart and
3 * Script.prototype.sourceLength should comprise the entire function expression
4 * (including arguments)
5 */
6 let g = newGlobal();
7 let dbg = new Debugger(g);
8
9 function test(string, ranges) {
10 var index = 0;
11 dbg.onNewScript = function (script) {
12 function traverse(script) {
13 script.getChildScripts().forEach(function (script) {
14 assertEq(script.sourceStart, ranges[index][0]);
15 assertEq(script.sourceLength, ranges[index][1]);
16 ++index;
17 traverse(script);
18 });
19 }
20 traverse(script);
21 };
22
23 g.eval(string);
24
25 /*
26 * In some configurations certain child scripts are listed twice, so we
27 * cannot rely on index always having the exact same value
28 */
29 assertEq(0 < index && index <= ranges.length, true);
30 };
31
32 test("() => {}", [[0, 8]]);
33 test("(x, y) => { x * y }", [[0, 19]]);
34 test("x => x * x", [[0, 10]]);
35 test("x => x => x * x", [[0, 15], [5, 10], [5, 10]]);

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