16b0767adc
In case there's no exact match for the breakable location in SetBreakpoint(), don't try to find the syntactically closest break location, but rather find the first possible break location in bytecode order. In particular when trying to set a breakpoint in a line with for-of or an array destruction, there's no point in going for the syntactically closest to the beginning of the line, but rather go for the semantically first, as the intiution for setting a breakpoint on a line is that the debugger stops before it executes anything on said line. In the example ``` var [^a, ^b] = ^func(); ``` there are three possible break locations, and the correct one is the last one as the call to func will happen first at runtime. For generators that's currently broken because of the implicit initial yield, and same with modules (see crbug.com/901819), so we keep the previous behavior of finding the closest breakable location, and will fix that independently in a follow up CL. Bug: chromium:901819 Fixed: chromium:782461 Also-By: yangguo@chromium.org Change-Id: Ie724c5cb08e5f4edd90a450d99e001dff06bbe7a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2696586 Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#72813}
430 lines
9.8 KiB
Plaintext
430 lines
9.8 KiB
Plaintext
Tests breakable locations in for-of loops.
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Running test: testBreakLocations
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function testFunction() {
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var obj = |_|{a : 1};
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var arr = |_|[1];
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var all = |_|[];
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for (var |_|k in |_|arr) { all.|C|push(k); }
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for (var |C|k of |_|arr) { all.|C|push(k); }
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for (var |_|k in |_|obj) { all.|C|push(k); }
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for (let |_|k in |_|arr) { all.|C|push(k); }
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for (let |C|k of |_|arr) { all.|C|push(k); }
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for (let |_|k in |_|obj) { all.|C|push(k); }
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var iterable = |_|{
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[Symbol.iterator]() {
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|_|return {
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i: 0,
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next() {
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if (this.|_|i < 1) {
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|_|return { value: this.i++, done: false };|R|
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}
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|_|return { value: undefined, done: true };|R|
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}
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};|R|
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}
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};
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for (var |C|k of |_|iterable) { all.|C|push(k); }
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|_|iterable.i = 0;
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for (let |C|k of |_|iterable) { all.|C|push(k); }
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|R|}
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Running test: testStepInto
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(anonymous) (expr.js:0:0)
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testFunction (test.js:2:12)
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(anonymous) (expr.js:0:0)
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function testFunction() {
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var obj = #{a : 1};
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var arr = [1];
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testFunction (test.js:3:12)
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(anonymous) (expr.js:0:0)
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var obj = {a : 1};
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var arr = #[1];
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var all = [];
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testFunction (test.js:4:12)
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(anonymous) (expr.js:0:0)
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var arr = [1];
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var all = #[];
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for (var k in arr) { all.push(k); }
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testFunction (test.js:5:16)
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(anonymous) (expr.js:0:0)
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var all = [];
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for (var k in #arr) { all.push(k); }
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for (var k of arr) { all.push(k); }
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testFunction (test.js:5:11)
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(anonymous) (expr.js:0:0)
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var all = [];
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for (var #k in arr) { all.push(k); }
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for (var k of arr) { all.push(k); }
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testFunction (test.js:5:27)
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(anonymous) (expr.js:0:0)
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var all = [];
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for (var k in arr) { all.#push(k); }
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for (var k of arr) { all.push(k); }
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testFunction (test.js:5:11)
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(anonymous) (expr.js:0:0)
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var all = [];
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for (var #k in arr) { all.push(k); }
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for (var k of arr) { all.push(k); }
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testFunction (test.js:6:16)
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(anonymous) (expr.js:0:0)
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for (var k in arr) { all.push(k); }
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for (var k of #arr) { all.push(k); }
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for (var k in obj) { all.push(k); }
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testFunction (test.js:6:11)
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(anonymous) (expr.js:0:0)
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for (var k in arr) { all.push(k); }
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for (var #k of arr) { all.push(k); }
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for (var k in obj) { all.push(k); }
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testFunction (test.js:6:27)
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(anonymous) (expr.js:0:0)
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for (var k in arr) { all.push(k); }
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for (var k of arr) { all.#push(k); }
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for (var k in obj) { all.push(k); }
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testFunction (test.js:6:11)
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(anonymous) (expr.js:0:0)
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for (var k in arr) { all.push(k); }
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for (var #k of arr) { all.push(k); }
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for (var k in obj) { all.push(k); }
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testFunction (test.js:7:16)
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(anonymous) (expr.js:0:0)
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for (var k of arr) { all.push(k); }
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for (var k in #obj) { all.push(k); }
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for (let k in arr) { all.push(k); }
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testFunction (test.js:7:11)
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(anonymous) (expr.js:0:0)
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for (var k of arr) { all.push(k); }
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for (var #k in obj) { all.push(k); }
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for (let k in arr) { all.push(k); }
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testFunction (test.js:7:27)
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(anonymous) (expr.js:0:0)
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for (var k of arr) { all.push(k); }
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for (var k in obj) { all.#push(k); }
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for (let k in arr) { all.push(k); }
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testFunction (test.js:7:11)
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(anonymous) (expr.js:0:0)
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for (var k of arr) { all.push(k); }
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for (var #k in obj) { all.push(k); }
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for (let k in arr) { all.push(k); }
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testFunction (test.js:8:16)
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(anonymous) (expr.js:0:0)
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for (var k in obj) { all.push(k); }
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for (let k in #arr) { all.push(k); }
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for (let k of arr) { all.push(k); }
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testFunction (test.js:8:11)
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(anonymous) (expr.js:0:0)
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for (var k in obj) { all.push(k); }
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for (let #k in arr) { all.push(k); }
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for (let k of arr) { all.push(k); }
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testFunction (test.js:8:27)
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(anonymous) (expr.js:0:0)
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for (var k in obj) { all.push(k); }
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for (let k in arr) { all.#push(k); }
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for (let k of arr) { all.push(k); }
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testFunction (test.js:8:11)
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(anonymous) (expr.js:0:0)
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for (var k in obj) { all.push(k); }
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for (let #k in arr) { all.push(k); }
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for (let k of arr) { all.push(k); }
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testFunction (test.js:9:16)
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(anonymous) (expr.js:0:0)
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for (let k in arr) { all.push(k); }
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for (let k of #arr) { all.push(k); }
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for (let k in obj) { all.push(k); }
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testFunction (test.js:9:11)
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(anonymous) (expr.js:0:0)
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for (let k in arr) { all.push(k); }
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for (let #k of arr) { all.push(k); }
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for (let k in obj) { all.push(k); }
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testFunction (test.js:9:27)
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(anonymous) (expr.js:0:0)
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for (let k in arr) { all.push(k); }
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for (let k of arr) { all.#push(k); }
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for (let k in obj) { all.push(k); }
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testFunction (test.js:9:11)
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(anonymous) (expr.js:0:0)
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for (let k in arr) { all.push(k); }
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for (let #k of arr) { all.push(k); }
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for (let k in obj) { all.push(k); }
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testFunction (test.js:10:16)
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(anonymous) (expr.js:0:0)
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for (let k of arr) { all.push(k); }
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for (let k in #obj) { all.push(k); }
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testFunction (test.js:10:11)
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(anonymous) (expr.js:0:0)
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for (let k of arr) { all.push(k); }
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for (let #k in obj) { all.push(k); }
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testFunction (test.js:10:27)
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(anonymous) (expr.js:0:0)
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for (let k of arr) { all.push(k); }
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for (let k in obj) { all.#push(k); }
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testFunction (test.js:10:11)
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(anonymous) (expr.js:0:0)
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for (let k of arr) { all.push(k); }
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for (let #k in obj) { all.push(k); }
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testFunction (test.js:12:17)
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(anonymous) (expr.js:0:0)
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var iterable = #{
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[Symbol.iterator]() {
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testFunction (test.js:25:16)
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(anonymous) (expr.js:0:0)
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};
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for (var k of #iterable) { all.push(k); }
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iterable.i = 0;
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[Symbol.iterator] (test.js:14:6)
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testFunction (test.js:25:16)
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(anonymous) (expr.js:0:0)
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[Symbol.iterator]() {
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#return {
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i: 0,
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[Symbol.iterator] (test.js:22:8)
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testFunction (test.js:25:16)
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(anonymous) (expr.js:0:0)
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}
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};#
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}
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testFunction (test.js:25:11)
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(anonymous) (expr.js:0:0)
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};
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for (var #k of iterable) { all.push(k); }
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iterable.i = 0;
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next (test.js:17:19)
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testFunction (test.js:25:11)
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(anonymous) (expr.js:0:0)
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next() {
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if (this.#i < 1) {
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return { value: this.i++, done: false };
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next (test.js:18:12)
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testFunction (test.js:25:11)
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(anonymous) (expr.js:0:0)
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if (this.i < 1) {
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#return { value: this.i++, done: false };
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}
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next (test.js:18:52)
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testFunction (test.js:25:11)
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(anonymous) (expr.js:0:0)
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if (this.i < 1) {
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return { value: this.i++, done: false };#
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}
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testFunction (test.js:25:11)
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(anonymous) (expr.js:0:0)
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};
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for (var #k of iterable) { all.push(k); }
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iterable.i = 0;
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testFunction (test.js:25:32)
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(anonymous) (expr.js:0:0)
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};
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for (var k of iterable) { all.#push(k); }
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iterable.i = 0;
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testFunction (test.js:25:11)
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(anonymous) (expr.js:0:0)
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};
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for (var #k of iterable) { all.push(k); }
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iterable.i = 0;
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next (test.js:17:19)
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testFunction (test.js:25:11)
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(anonymous) (expr.js:0:0)
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next() {
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if (this.#i < 1) {
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return { value: this.i++, done: false };
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next (test.js:20:10)
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testFunction (test.js:25:11)
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(anonymous) (expr.js:0:0)
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}
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#return { value: undefined, done: true };
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}
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next (test.js:20:50)
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testFunction (test.js:25:11)
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(anonymous) (expr.js:0:0)
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}
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return { value: undefined, done: true };#
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}
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testFunction (test.js:26:2)
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(anonymous) (expr.js:0:0)
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for (var k of iterable) { all.push(k); }
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#iterable.i = 0;
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for (let k of iterable) { all.push(k); }
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testFunction (test.js:27:16)
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(anonymous) (expr.js:0:0)
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iterable.i = 0;
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for (let k of #iterable) { all.push(k); }
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}
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[Symbol.iterator] (test.js:14:6)
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testFunction (test.js:27:16)
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(anonymous) (expr.js:0:0)
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[Symbol.iterator]() {
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#return {
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i: 0,
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[Symbol.iterator] (test.js:22:8)
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testFunction (test.js:27:16)
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(anonymous) (expr.js:0:0)
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}
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};#
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}
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testFunction (test.js:27:11)
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(anonymous) (expr.js:0:0)
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iterable.i = 0;
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for (let #k of iterable) { all.push(k); }
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}
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next (test.js:17:19)
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testFunction (test.js:27:11)
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(anonymous) (expr.js:0:0)
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next() {
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if (this.#i < 1) {
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return { value: this.i++, done: false };
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next (test.js:18:12)
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testFunction (test.js:27:11)
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(anonymous) (expr.js:0:0)
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if (this.i < 1) {
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#return { value: this.i++, done: false };
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}
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next (test.js:18:52)
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testFunction (test.js:27:11)
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(anonymous) (expr.js:0:0)
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if (this.i < 1) {
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return { value: this.i++, done: false };#
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}
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testFunction (test.js:27:11)
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(anonymous) (expr.js:0:0)
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iterable.i = 0;
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for (let #k of iterable) { all.push(k); }
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}
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testFunction (test.js:27:32)
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(anonymous) (expr.js:0:0)
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iterable.i = 0;
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for (let k of iterable) { all.#push(k); }
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}
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testFunction (test.js:27:11)
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(anonymous) (expr.js:0:0)
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iterable.i = 0;
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for (let #k of iterable) { all.push(k); }
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}
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next (test.js:17:19)
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testFunction (test.js:27:11)
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(anonymous) (expr.js:0:0)
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next() {
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if (this.#i < 1) {
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return { value: this.i++, done: false };
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next (test.js:20:10)
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testFunction (test.js:27:11)
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(anonymous) (expr.js:0:0)
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}
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#return { value: undefined, done: true };
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}
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next (test.js:20:50)
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testFunction (test.js:27:11)
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(anonymous) (expr.js:0:0)
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}
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return { value: undefined, done: true };#
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}
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testFunction (test.js:28:0)
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(anonymous) (expr.js:0:0)
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for (let k of iterable) { all.push(k); }
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#}
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(anonymous) (expr.js:0:35)
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Running test: testStepIntoAfterBreakpoint
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testFunction (test.js:25:11)
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(anonymous) (expr.js:0:0)
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};
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for (var #k of iterable) { all.push(k); }
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iterable.i = 0;
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next (test.js:17:19)
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testFunction (test.js:25:11)
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(anonymous) (expr.js:0:0)
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next() {
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if (this.#i < 1) {
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return { value: this.i++, done: false };
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Running test: testSetBreakpoint
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Setting breakpoint at test.js:25:0
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};
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for (var k of #iterable) { all.push(k); }
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iterable.i = 0;
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Setting breakpoint at test.js:25:11
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};
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for (var #k of iterable) { all.push(k); }
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iterable.i = 0;
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Setting breakpoint at test.js:25:16
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};
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for (var k of #iterable) { all.push(k); }
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iterable.i = 0;
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Setting breakpoint at test.js:25:28
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};
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for (var k of iterable) { all.#push(k); }
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iterable.i = 0;
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