dc7abf3e21
The yield* statement when used in combination with async iterators is not supported yet, as that is desugared into a more complex construct that doesn't offer a good dedicated bytecode to attach the source range information yet. Note that invocation counts of generator functions are incorrect as they count each resumption as an individual call. See https://crbug.com/v8/6594. Bug: v8:6000 Change-Id: I7ac7073473c9b64bb207cdbc4dab083ec1145656 Reviewed-on: https://chromium-review.googlesource.com/582690 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#46890}
652 lines
23 KiB
JavaScript
652 lines
23 KiB
JavaScript
// Copyright 2017 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 --block-coverage
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// Flags: --no-stress-fullcodegen --harmony-async-iteration
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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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"call an IIFE",
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`
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(function f() {})();
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`,
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[{"start":0,"end":20,"count":1},{"start":1,"end":16,"count":1}]
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);
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TestCoverage(
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"call locally allocated function",
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`let f = () => 1; f();`,
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[{"start":0,"end":21,"count":1},{"start":8,"end":15,"count":1}]
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);
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TestCoverage(
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"if statements",
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`
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function g() {} // 0000
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function f(x) { // 0050
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if (x == 42) { // 0100
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if (x == 43) g(); else g(); // 0150
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} // 0200
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if (x == 42) { g(); } else { g(); } // 0250
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if (x == 42) g(); else g(); // 0300
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if (false) g(); else g(); // 0350
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if (false) g(); // 0400
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if (true) g(); else g(); // 0450
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if (true) g(); // 0500
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} // 0550
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f(42); // 0600
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f(43); // 0650
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`,
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[{"start":0,"end":699,"count":1},
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{"start":0,"end":15,"count":11},
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{"start":50,"end":551,"count":2},
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{"start":115,"end":203,"count":1},
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{"start":167,"end":171,"count":0},
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{"start":265,"end":273,"count":1},
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{"start":279,"end":287,"count":1},
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{"start":315,"end":319,"count":1},
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{"start":325,"end":329,"count":1},
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{"start":363,"end":367,"count":0},
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{"start":413,"end":417,"count":0},
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{"start":472,"end":476,"count":0}]
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);
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TestCoverage(
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"if statement (early return)",
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`
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!function() { // 0000
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if (true) { // 0050
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nop(); // 0100
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return; // 0150
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nop(); // 0200
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} // 0250
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nop(); // 0300
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}() // 0350
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`,
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[{"start":0,"end":399,"count":1},
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{"start":1,"end":351,"count":1},
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{"start":161,"end":351,"count":0}]
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);
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TestCoverage(
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"if statement (no semi-colon)",
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`
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!function() { // 0000
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if (true) nop() // 0050
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if (true) nop(); else nop() // 0100
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nop(); // 0150
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}() // 0200
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`,
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[{"start":0,"end":249,"count":1},
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{"start":1,"end":201,"count":1},
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{"start":124,"end":129,"count":0}]
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);
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TestCoverage(
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"for statements",
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`
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function g() {} // 0000
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!function() { // 0050
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for (var i = 0; i < 12; i++) g(); // 0100
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for (var i = 0; i < 12; i++) { // 0150
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g(); // 0200
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} // 0250
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for (var i = 0; false; i++) g(); // 0300
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for (var i = 0; true; i++) break; // 0350
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for (var i = 0; i < 12; i++) { // 0400
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if (i % 3 == 0) g(); else g(); // 0450
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} // 0500
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}(); // 0550
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`,
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[{"start":0,"end":599,"count":1},
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{"start":0,"end":15,"count":36},
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{"start":51,"end":551,"count":1},
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{"start":131,"end":135,"count":12},
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{"start":181,"end":253,"count":12},
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{"start":330,"end":334,"count":0},
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{"start":431,"end":503,"count":12},
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{"start":470,"end":474,"count":4},
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{"start":480,"end":484,"count":8}]
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);
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TestCoverage(
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"for statements pt. 2",
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`
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function g() {} // 0000
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!function() { // 0050
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let j = 0; // 0100
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for (let i = 0; i < 12; i++) g(); // 0150
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for (const i = 0; j < 12; j++) g(); // 0200
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for (j = 0; j < 12; j++) g(); // 0250
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for (;;) break; // 0300
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}(); // 0350
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`,
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[{"start":0,"end":399,"count":1},
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{"start":0,"end":15,"count":36},
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{"start":51,"end":351,"count":1},
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{"start":181,"end":185,"count":12},
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{"start":233,"end":237,"count":12},
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{"start":277,"end":281,"count":12}]
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);
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TestCoverage(
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"for statements (no semicolon)",
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`
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function g() {} // 0000
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!function() { // 0050
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for (let i = 0; i < 12; i++) g() // 0100
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for (let i = 0; i < 12; i++) break // 0150
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for (let i = 0; i < 12; i++) break; g() // 0200
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}(); // 0250
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`,
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[{"start":0,"end":299,"count":1},
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{"start":0,"end":15,"count":13},
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{"start":51,"end":251,"count":1},
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{"start":131,"end":134,"count":12}]
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);
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TestCoverage(
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"for statement (early return)",
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`
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!function() { // 0000
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for (var i = 0; i < 10; i++) { // 0050
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nop(); // 0100
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continue; // 0150
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nop(); // 0200
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} // 0250
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nop(); // 0300
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for (;;) { // 0350
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nop(); // 0400
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break; // 0450
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nop(); // 0500
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} // 0550
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nop(); // 0600
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for (;;) { // 0650
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nop(); // 0700
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return; // 0750
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nop(); // 0800
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} // 0850
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nop(); // 0900
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}() // 0950
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`,
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[{"start":0,"end":999,"count":1},
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{"start":1,"end":951,"count":1},
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{"start":81,"end":253,"count":10},
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{"start":163,"end":253,"count":0},
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{"start":460,"end":553,"count":0},
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{"start":761,"end":951,"count":0}]
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);
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TestCoverage(
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"for-of and for-in statements",
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`
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!function() { // 0000
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var i; // 0050
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for (i of [0,1,2,3]) { nop(); } // 0100
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for (let j of [0,1,2,3]) { nop(); } // 0150
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for (i in [0,1,2,3]) { nop(); } // 0200
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for (let j in [0,1,2,3]) { nop(); } // 0250
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var xs = [{a:0, b:1}, {a:1,b:0}]; // 0300
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for (var {a: x, b: y} of xs) { 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":401,"count":1},
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{"start":123,"end":133,"count":4},
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{"start":177,"end":187,"count":4},
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{"start":223,"end":233,"count":4},
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{"start":277,"end":287,"count":4},
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{"start":381,"end":391,"count":2}]
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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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%RunMicrotasks(); // 0250
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`,
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[{"start":0,"end":299,"count":1},
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{"start":1,"end":201,"count":6}, // TODO(jgruber): Invocation count is off.
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{"start":83,"end":153,"count":4},
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{"start":153,"end":201,"count":1}]
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);
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TestCoverage(
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"while and do-while statements",
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`
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function g() {} // 0000
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!function() { // 0050
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var i; // 0100
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i = 0; while (i < 12) i++; // 0150
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i = 0; while (i < 12) { g(); i++; } // 0200
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i = 0; while (false) g(); // 0250
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i = 0; while (true) break; // 0300
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// 0350
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i = 0; do i++; while (i < 12); // 0400
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i = 0; do { g(); i++; } // 0450
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while (i < 12); // 0500
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i = 0; do { g(); } while (false); // 0550
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i = 0; do { break; } while (true); // 0600
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}(); // 0650
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`,
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[{"start":0,"end":699,"count":1},
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{"start":0,"end":15,"count":25},
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{"start":51,"end":651,"count":1},
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{"start":174,"end":178,"count":12},
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{"start":224,"end":237,"count":12},
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{"start":273,"end":277,"count":0},
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{"start":412,"end":416,"count":12},
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{"start":462,"end":475,"count":12},
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{"start":620,"end":622,"count":0}]
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);
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TestCoverage(
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"while statement (early return)",
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`
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!function() { // 0000
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let i = 0; // 0050
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while (i < 10) { // 0100
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i++; // 0150
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continue; // 0200
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nop(); // 0250
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} // 0300
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nop(); // 0350
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while (true) { // 0400
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nop(); // 0450
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break; // 0500
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nop(); // 0550
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} // 0600
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nop(); // 0650
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while (true) { // 0700
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nop(); // 0750
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return; // 0800
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nop(); // 0850
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} // 0900
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nop(); // 0950
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}() // 1000
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`,
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[{"start":0,"end":1049,"count":1},
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{"start":1,"end":1001,"count":1},
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{"start":117,"end":303,"count":10},
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{"start":213,"end":303,"count":0},
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{"start":510,"end":603,"count":0},
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{"start":811,"end":1001,"count":0}]
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);
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TestCoverage(
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"do-while statement (early return)",
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`
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!function() { // 0000
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let i = 0; // 0050
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do { // 0100
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i++; // 0150
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continue; // 0200
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nop(); // 0250
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} while (i < 10); // 0300
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nop(); // 0350
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do { // 0400
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nop(); // 0450
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break; // 0500
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nop(); // 0550
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} while (true); // 0600
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nop(); // 0650
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do { // 0700
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nop(); // 0750
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return; // 0800
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nop(); // 0850
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} while (true); // 0900
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nop(); // 0950
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}() // 1000
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`,
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[{"start":0,"end":1049,"count":1},
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{"start":1,"end":1001,"count":1},
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{"start":105,"end":303,"count":10},
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{"start":213,"end":303,"count":0},
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{"start":510,"end":603,"count":0},
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{"start":811,"end":1001,"count":0}]
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);
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TestCoverage(
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"return statements",
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`
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!function() { nop(); return; nop(); }(); // 0000
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!function() { nop(); return 42; // 0050
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nop(); }(); // 0100
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`,
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[{"start":0,"end":149,"count":1},
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{"start":1,"end":37,"count":1},
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{"start":28,"end":37,"count":0},
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{"start":51,"end":122,"count":1},
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{"start":81,"end":122,"count":0}]
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);
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TestCoverage(
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"try/catch/finally statements",
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`
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!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":77,"end":87,"count":0},
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{"start":219,"end":232,"count":0},
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{"start":264,"end":274,"count":0},
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{"start":369,"end":380,"count":0},
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{"start":403,"end":414,"count":0}, // TODO(jgruber): Include `catch` in range.
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{"start":513,"end":564,"count":0}]
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);
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TestCoverage(
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"early return in blocks",
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`
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!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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!function() { // 0200
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try { nop(); } finally { return; } // 0250
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nop(); // 0300
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}(); // 0350
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!function() { // 0400
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{ // 0450
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let x = 42; // 0500
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return () => x; // 0550
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} // 0600
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nop(); // 0650
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}(); // 0700
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!function() { // 0750
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try { throw 42; } catch (e) { // 0800
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return; // 0850
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nop(); // 0900
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} // 0950
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nop(); // 1000
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}(); // 1050
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`,
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[{"start":0,"end":1099,"count":1},
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{"start":1,"end":151,"count":1},
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{"start":67,"end":80,"count":0},
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{"start":89,"end":151,"count":0},
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{"start":201,"end":351,"count":1},
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{"start":284,"end":351,"count":0},
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{"start":401,"end":701,"count":1},
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{"start":569,"end":701,"count":0},
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{"start":561,"end":568,"count":0}, // TODO(jgruber): Sorting.
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{"start":751,"end":1051,"count":1},
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{"start":817,"end":830,"count":0},
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{"start":861,"end":1051,"count":0}]
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);
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TestCoverage(
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"switch statements",
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`
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!function() { // 0000
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var x = 42; // 0050
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switch (x) { // 0100
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case 41: nop(); break; // 0150
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case 42: nop(); break; // 0200
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default: nop(); break; // 0250
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} // 0300
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}(); // 0350
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`,
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[{"start":0,"end":399,"count":1},
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{"start":1,"end":351,"count":1},
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|
{"start":154,"end":204,"count":0},
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|
{"start":226,"end":303,"count":0}]
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);
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|
TestCoverage(
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|
"labeled break statements",
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|
`
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|
!function() { // 0000
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var x = 42; // 0050
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l0: switch (x) { // 0100
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case 41: return; // 0150
|
|
case 42: // 0200
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switch (x) { case 42: break l0; } // 0250
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break; // 0300
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} // 0350
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l1: for (;;) { // 0400
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|
for (;;) break l1; // 0450
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|
} // 0500
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l2: while (true) { // 0550
|
|
while (true) break l2; // 0600
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|
} // 0650
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l3: do { // 0700
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|
do { break l3; } while (true); // 0750
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|
} while (true); // 0800
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l4: { break l4; } // 0850
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l5: for (;;) for (;;) break l5; // 0900
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|
}(); // 0950
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|
`,
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|
[{"start":0,"end":999,"count":1},
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|
{"start":1,"end":951,"count":1},
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|
{"start":152,"end":202,"count":0},
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|
{"start":285,"end":353,"count":0},
|
|
{"start":472,"end":503,"count":0},
|
|
{"start":626,"end":653,"count":0},
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|
{"start":768,"end":803,"count":0},
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|
{"start":867,"end":869,"count":0}]
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|
);
|
|
|
|
TestCoverage(
|
|
"labeled continue statements",
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|
`
|
|
!function() { // 0000
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|
l0: for (var i0 = 0; i0 < 2; i0++) { // 0050
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|
for (;;) continue l0; // 0100
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|
} // 0150
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|
var i1 = 0; // 0200
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l1: while (i1 < 2) { // 0250
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|
i1++; // 0300
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while (true) continue l1; // 0350
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} // 0400
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var i2 = 0; // 0450
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l2: do { // 0500
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i2++; // 0550
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do { continue l2; } while (true); // 0600
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|
} while (i2 < 2); // 0650
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}(); // 0700
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`,
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|
[{"start":0,"end":749,"count":1},
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|
{"start":1,"end":701,"count":1},
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|
{"start":87,"end":153,"count":2},
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|
{"start":125,"end":153,"count":0},
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{"start":271,"end":403,"count":2},
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|
{"start":379,"end":403,"count":0},
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|
{"start":509,"end":653,"count":2},
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|
{"start":621,"end":653,"count":0}]
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);
|
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|
|
TestCoverage(
|
|
"conditional expressions",
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|
`
|
|
var TRUE = true; // 0000
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|
var FALSE = false; // 0050
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|
!function() { // 0100
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|
TRUE ? nop() : nop(); // 0150
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|
true ? nop() : nop(); // 0200
|
|
false ? nop() : nop(); // 0250
|
|
FALSE ? TRUE ? nop() // 0300
|
|
: nop() // 0350
|
|
: nop(); // 0400
|
|
TRUE ? FALSE ? nop() // 0450
|
|
: nop() // 0500
|
|
: nop(); // 0550
|
|
TRUE ? nop() : FALSE ? nop() // 0600
|
|
: nop(); // 0650
|
|
FALSE ? nop() : TRUE ? nop() // 0700
|
|
: nop(); // 0750
|
|
}(); // 0800
|
|
`,
|
|
[{"start":0,"end":849,"count":1},
|
|
{"start":101,"end":801,"count":1},
|
|
{"start":167,"end":172,"count":0},
|
|
{"start":217,"end":222,"count":0},
|
|
{"start":260,"end":265,"count":0},
|
|
{"start":310,"end":372,"count":0},
|
|
{"start":467,"end":472,"count":0},
|
|
{"start":559,"end":564,"count":0},
|
|
{"start":617,"end":680,"count":0},
|
|
{"start":710,"end":715,"count":0},
|
|
{"start":775,"end":780,"count":0}]
|
|
);
|
|
|
|
TestCoverage(
|
|
"yield expressions",
|
|
`
|
|
const it = function*() { // 0000
|
|
yield nop(); // 0050
|
|
yield nop() ? nop() : nop() // 0100
|
|
return nop(); // 0150
|
|
}(); // 0200
|
|
it.next(); it.next(); // 0250
|
|
`,
|
|
[{"start":0,"end":299,"count":1},
|
|
{"start":11,"end":201,"count":3},
|
|
{"start":64,"end":116,"count":1},
|
|
{"start":116,"end":121,"count":0},
|
|
{"start":124,"end":129,"count":1},
|
|
{"start":129,"end":201,"count":0}]
|
|
);
|
|
|
|
TestCoverage(
|
|
"yield expressions (.return and .throw)",
|
|
`
|
|
const it0 = function*() { // 0000
|
|
yield 1; yield 2; yield 3; // 0050
|
|
}(); // 0100
|
|
it0.next(); it0.return(); // 0150
|
|
try { // 0200
|
|
const it1 = function*() { // 0250
|
|
yield 1; yield 2; yield 3; // 0300
|
|
}(); // 0350
|
|
it1.next(); it1.throw(); // 0400
|
|
} catch (e) {} // 0450
|
|
`,
|
|
[{"start":0,"end":499,"count":1},
|
|
{"start":12,"end":101,"count":3},
|
|
{"start":60,"end":101,"count":0},
|
|
{"start":264,"end":353,"count":3},
|
|
{"start":312,"end":353,"count":0}]
|
|
);
|
|
|
|
TestCoverage("yield expressions (.return and try/catch/finally)",
|
|
`
|
|
const it = function*() { // 0000
|
|
try { // 0050
|
|
yield 1; yield 2; yield 3; // 0100
|
|
} catch (e) { // 0150
|
|
nop(); // 0200
|
|
} finally { nop(); } // 0250
|
|
yield 4; // 0300
|
|
}(); // 0350
|
|
it.next(); it.return(); // 0450
|
|
`,
|
|
[{"start":0,"end":449,"count":1},
|
|
{"start":11,"end":351,"count":3},
|
|
{"start":112,"end":253,"count":0},
|
|
{"start":262,"end":272,"count":1},
|
|
{"start":310,"end":351,"count":0}] // TODO(jgruber): Missing continuation.
|
|
);
|
|
|
|
TestCoverage("yield expressions (.throw and try/catch/finally)",
|
|
`
|
|
const it = function*() { // 0000
|
|
try { // 0050
|
|
yield 1; yield 2; yield 3; // 0100
|
|
} catch (e) { // 0150
|
|
nop(); // 0200
|
|
} finally { nop(); } // 0250
|
|
yield 4; // 0300
|
|
}(); // 0350
|
|
it.next(); it.throw(42); // 0550
|
|
`,
|
|
[{"start":0,"end":449,"count":1},
|
|
{"start":11,"end":351,"count":3},
|
|
{"start":112,"end":164,"count":0},
|
|
{"start":164,"end":253,"count":1},
|
|
{"start":262,"end":272,"count":1},
|
|
{"start":310,"end":351,"count":0}] // TODO(jgruber): Missing continuation.
|
|
);
|
|
|
|
TestCoverage(
|
|
"yield* expressions",
|
|
`
|
|
const it = function*() { // 0000
|
|
yield* gen(); // 0050
|
|
yield* nop() ? gen() : gen() // 0100
|
|
return gen(); // 0150
|
|
}(); // 0200
|
|
it.next(); it.next(); it.next(); // 0250
|
|
it.next(); it.next(); it.next(); // 0300
|
|
`,
|
|
[{"start":0,"end":349,"count":1},
|
|
{"start":11,"end":201,"count":7},
|
|
{"start":65,"end":117,"count":1},
|
|
{"start":117,"end":122,"count":0},
|
|
{"start":125,"end":130,"count":1},
|
|
{"start":130,"end":201,"count":0}]
|
|
);
|
|
|
|
TestCoverage(
|
|
"yield* expressions (.return and .throw)",
|
|
`
|
|
const it0 = function*() { // 0000
|
|
yield* gen(); yield* gen(); yield 3; // 0050
|
|
}(); // 0100
|
|
it0.next(); it0.return(); // 0150
|
|
try { // 0200
|
|
const it1 = function*() { // 0250
|
|
yield* gen(); yield* gen(); yield 3; // 0300
|
|
}(); // 0350
|
|
it1.next(); it1.throw(); // 0400
|
|
} catch (e) {} // 0450
|
|
`,
|
|
[{"start":0,"end":499,"count":1},
|
|
{"start":12,"end":101,"count":3},
|
|
{"start":65,"end":101,"count":0},
|
|
{"start":264,"end":353,"count":3},
|
|
{"start":317,"end":353,"count":0}]
|
|
);
|
|
|
|
TestCoverage(
|
|
"await expressions",
|
|
`
|
|
async function f() { // 0000
|
|
await 42; // 0050
|
|
await 42; // 0100
|
|
}; // 0150
|
|
f(); // 0200
|
|
%RunMicrotasks(); // 0250
|
|
`,
|
|
[{"start":0,"end":299,"count":1},
|
|
{"start":0,"end":151,"count":3},
|
|
{"start":61,"end":151,"count":1}]
|
|
);
|
|
|
|
%DebugToggleBlockCoverage(false);
|