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61c618d54f
Original commit message:
[coverage] remove the last continuation range before synthetic return
Rather than only removing the continuation range for the last return
statement prior to a synthetic return statement, remove the
continuation tracking for whatever statement occurs prior to the
synthetic return.
Bug: v8:10628
Change-Id: Ieb8e393479c9811cf1b9756840bbfdbe7f44a1b8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2280585
Commit-Queue: Benjamin Coe <bencoe@google.com>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68719}
Refs: 2d5017a0fc
PR-URL: https://github.com/nodejs/node/pull/34272
Refs: https://github.com/bcoe/c8/issues/229
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
202 lines
7.0 KiB
JavaScript
202 lines
7.0 KiB
JavaScript
// Copyright 2019 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax --no-always-opt --no-stress-flush-bytecode
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// Flags: --no-stress-incremental-marking
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// Files: test/mjsunit/code-coverage-utils.js
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%DebugToggleBlockCoverage(true);
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TestCoverage(
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"await expressions",
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`
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async function f() { // 0000
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await 42; // 0050
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await 42; // 0100
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}; // 0150
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f(); // 0200
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%PerformMicrotaskCheckpoint(); // 0250
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`,
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[{"start":0,"end":299,"count":1},
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{"start":0,"end":151,"count":1}]
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);
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TestCoverage(
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"for-await-of statements",
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`
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!async function() { // 0000
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for await (var x of [0,1,2,3]) { // 0050
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nop(); // 0100
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} // 0150
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}(); // 0200
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%PerformMicrotaskCheckpoint(); // 0250
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`,
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[{"start":0,"end":299,"count":1},
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{"start":1,"end":201,"count":1},
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{"start":83,"end":153,"count":4}]
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);
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TestCoverage(
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"https://crbug.com/981313",
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`
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class Foo { // 0000
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async timeout() { // 0000
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return new Promise( // 0100
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(r) => setTimeout(r, 10)); // 0000
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} // 0200
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} // 0000
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new Foo().timeout(); // 0300
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`,
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[ {"start":0, "end":349, "count":1},
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{"start":52, "end":203, "count":1},
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{"start":158,"end":182, "count":1}]);
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TestCoverage(
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"test async generator coverage",
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`
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class Foo { // 0000
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async *timeout() { // 0000
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return new Promise( // 0100
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(r) => setTimeout(r, 10)); // 0000
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} // 0200
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} // 0000
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new Foo().timeout(); // 0300
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`,
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[ {"start":0, "end":349, "count":1},
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{"start":52, "end":203, "count":1},
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{"start":158,"end":182, "count":0}]);
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TestCoverage(
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"test async generator coverage with next call",
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`
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class Foo { // 0000
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async *timeout() { // 0000
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return new Promise( // 0100
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(r) => setTimeout(r, 10)); // 0000
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} // 0200
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} // 0000
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new Foo().timeout().next(); // 0300
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`,
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[ {"start":0, "end":349, "count":1},
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{"start":52, "end":203, "count":1},
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{"start":158,"end":182, "count":1}]);
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TestCoverage(
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"test two consecutive returns",
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`
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class Foo { // 0000
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timeout() { // 0000
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return new Promise( // 0100
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(r) => setTimeout(r, 10)); // 0000
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return new Promise( // 0200
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(r) => setTimeout(r, 10)); // 0000
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} // 0300
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} // 0000
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new Foo().timeout(); // 0400
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`,
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[ {"start":0,"end":449,"count":1},
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{"start":52,"end":303,"count":1},
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{"start":184,"end":302,"count":0},
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{"start":158,"end":182,"count":1}] );
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TestCoverage(
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"test async generator with two consecutive returns",
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`
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class Foo { // 0000
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async *timeout() { // 0000
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return new Promise( // 0100
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(r) => setTimeout(r, 10)); // 0000
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return new Promise( // 0200
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(r) => setTimeout(r, 10)); // 0000
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} // 0300
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} // 0000
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new Foo().timeout().next(); // 0400
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`,
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[ {"start":0,"end":449,"count":1},
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{"start":52,"end":303,"count":1},
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{"start":184,"end":302,"count":0},
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{"start":158,"end":182,"count":1}] );
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TestCoverage(
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"https://crbug.com/v8/9952",
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`
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async function test(foo) { // 0000
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return {bar}; // 0050
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// 0100
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function bar() { // 0150
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console.log("test"); // 0200
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} // 0250
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} // 0300
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test().then(r => r.bar()); // 0350
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%PerformMicrotaskCheckpoint(); // 0400`,
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[{"start":0,"end":449,"count":1},
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{"start":0,"end":301,"count":1},
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{"start":152,"end":253,"count":1},
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{"start":362,"end":374,"count":1}]);
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TestCoverage(
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"https://crbug.com/v8/10628",
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`
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async function abc() { // 0000
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try { // 0050
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return 'abc'; // 0100
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} finally { // 0150
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console.log('in finally'); // 0200
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} // 0250
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} // 0300
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abc(); // 0350
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%PerformMicrotaskCheckpoint(); // 0400
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`,
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[{"start":0,"end":449,"count":1},
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{"start":0,"end":301,"count":1}]);
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TestCoverage(
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"try/catch/finally statements async",
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`
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!async function() { // 0000
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try { nop(); } catch (e) { nop(); } // 0050
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try { nop(); } finally { nop(); } // 0100
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try { // 0150
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try { throw 42; } catch (e) { nop(); }// 0200
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} catch (e) { nop(); } // 0250
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try { // 0300
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try { throw 42; } finally { nop(); } // 0350
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} catch (e) { nop(); } // 0400
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try { // 0450
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throw 42; // 0500
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} catch (e) { // 0550
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nop(); // 0600
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} finally { // 0650
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nop(); // 0700
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} // 0750
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}(); // 0800
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`,
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[{"start":0,"end":849,"count":1},
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{"start":1,"end":801,"count":1},
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{"start":67,"end":87,"count":0},
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{"start":254,"end":274,"count":0}]
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);
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TestCoverage("try/catch/finally statements with early return async",
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`
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!async function() { // 0000
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try { throw 42; } catch (e) { return; } // 0050
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nop(); // 0100
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}(); // 0150
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!async function() { // 0200
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try { throw 42; } catch (e) {} // 0250
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finally { return; } // 0300
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nop(); // 0350
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}(); // 0400
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`,
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[{"start":0,"end":449,"count":1},
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{"start":1,"end":151,"count":1},
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{"start":91,"end":150,"count":0},
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{"start":201,"end":401,"count":1},
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{"start":321,"end":400,"count":0}]
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);
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%DebugToggleBlockCoverage(false);
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