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			896 lines
		
	
	
		
			31 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			896 lines
		
	
	
		
			31 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
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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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if (true) {                               // 0700
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  const foo = 'bar';                      // 0750
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} else {                                  // 0800
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  const bar = 'foo';                      // 0850
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}                                         // 0900
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`,
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[{"start":0,"end":949,"count":1},
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						|
 {"start":801,"end":901,"count":0},
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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":287,"count":1},
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 {"start":315,"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":466,"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":350,"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":118,"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":474,"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":950,"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":200,"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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 | 
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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},
 | 
						|
 {"start":213,"end":303,"count":0},
 | 
						|
 {"start":510,"end":603,"count":0},
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 {"start":811,"end":1000,"count":0}]
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);
 | 
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 | 
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TestCoverage(
 | 
						|
"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},
 | 
						|
 {"start":213,"end":303,"count":0},
 | 
						|
 {"start":510,"end":603,"count":0},
 | 
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 {"start":811,"end":1000,"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
 | 
						|
`,
 | 
						|
[{"start":0,"end":149,"count":1},
 | 
						|
 {"start":1,"end":37,"count":1},
 | 
						|
 {"start":28,"end":36,"count":0},
 | 
						|
 {"start":51,"end":122,"count":1},
 | 
						|
 {"start":81,"end":121,"count":0}]
 | 
						|
);
 | 
						|
 | 
						|
TestCoverage(
 | 
						|
"try/catch/finally statements",
 | 
						|
`
 | 
						|
!function() {                             // 0000
 | 
						|
  try { nop(); } catch (e) { nop(); }     // 0050
 | 
						|
  try { nop(); } finally { nop(); }       // 0100
 | 
						|
  try {                                   // 0150
 | 
						|
    try { throw 42; } catch (e) { nop(); }// 0200
 | 
						|
  } catch (e) { nop(); }                  // 0250
 | 
						|
  try {                                   // 0300
 | 
						|
    try { throw 42; } finally { nop(); }  // 0350
 | 
						|
  } catch (e) { nop(); }                  // 0400
 | 
						|
  try {                                   // 0450
 | 
						|
    throw 42;                             // 0500
 | 
						|
  } catch (e) {                           // 0550
 | 
						|
    nop();                                // 0600
 | 
						|
  } finally {                             // 0650
 | 
						|
    nop();                                // 0700
 | 
						|
  }                                       // 0750
 | 
						|
}();                                      // 0800
 | 
						|
`,
 | 
						|
[{"start":0,"end":849,"count":1},
 | 
						|
 {"start":1,"end":801,"count":1},
 | 
						|
 {"start":67,"end":87,"count":0},
 | 
						|
 {"start":219,"end":222,"count":0},
 | 
						|
 {"start":254,"end":274,"count":0},
 | 
						|
 {"start":369,"end":372,"count":0},
 | 
						|
 {"start":390,"end":404,"count":0},
 | 
						|
 {"start":513,"end":554,"count":0}]
 | 
						|
);
 | 
						|
 | 
						|
TestCoverage("try/catch/finally statements with early return",
 | 
						|
`
 | 
						|
!function() {                             // 0000
 | 
						|
  try { throw 42; } catch (e) { return; } // 0050
 | 
						|
  nop();                                  // 0100
 | 
						|
}();                                      // 0150
 | 
						|
!function() {                             // 0200
 | 
						|
  try { throw 42; } catch (e) {}          // 0250
 | 
						|
  finally { return; }                     // 0300
 | 
						|
  nop();                                  // 0350
 | 
						|
}();                                      // 0400
 | 
						|
`,
 | 
						|
[{"start":0,"end":449,"count":1},
 | 
						|
 {"start":1,"end":151,"count":1},
 | 
						|
 {"start":67,"end":70,"count":0},
 | 
						|
 {"start":89,"end":150,"count":0},
 | 
						|
 {"start":201,"end":401,"count":1},
 | 
						|
 {"start":267,"end":270,"count":0},
 | 
						|
 {"start":319,"end":400,"count":0}]
 | 
						|
);
 | 
						|
 | 
						|
TestCoverage(
 | 
						|
"early return in blocks",
 | 
						|
`
 | 
						|
!function() {                             // 0000
 | 
						|
  try { throw 42; } catch (e) { return; } // 0050
 | 
						|
  nop();                                  // 0100
 | 
						|
}();                                      // 0150
 | 
						|
!function() {                             // 0200
 | 
						|
  try { nop(); } finally { return; }      // 0250
 | 
						|
  nop();                                  // 0300
 | 
						|
}();                                      // 0350
 | 
						|
!function() {                             // 0400
 | 
						|
  {                                       // 0450
 | 
						|
    let x = 42;                           // 0500
 | 
						|
    return () => x;                       // 0550
 | 
						|
  }                                       // 0600
 | 
						|
  nop();                                  // 0650
 | 
						|
}();                                      // 0700
 | 
						|
!function() {                             // 0750
 | 
						|
  try { throw 42; } catch (e) {           // 0800
 | 
						|
    return;                               // 0850
 | 
						|
    nop();                                // 0900
 | 
						|
  }                                       // 0950
 | 
						|
  nop();                                  // 1000
 | 
						|
}();                                      // 1050
 | 
						|
`,
 | 
						|
[{"start":0,"end":1099,"count":1},
 | 
						|
 {"start":1,"end":151,"count":1},
 | 
						|
 {"start":67,"end":70,"count":0},
 | 
						|
 {"start":89,"end":150,"count":0},
 | 
						|
 {"start":201,"end":351,"count":1},
 | 
						|
 {"start":284,"end":350,"count":0},
 | 
						|
 {"start":401,"end":701,"count":1},
 | 
						|
 {"start":569,"end":700,"count":0},
 | 
						|
 {"start":561,"end":568,"count":0},  // TODO(jgruber): Sorting.
 | 
						|
 {"start":751,"end":1051,"count":1},
 | 
						|
 {"start":817,"end":820,"count":0},
 | 
						|
 {"start":861,"end":1050,"count":0}]
 | 
						|
);
 | 
						|
 | 
						|
TestCoverage(
 | 
						|
"switch statements",
 | 
						|
`
 | 
						|
!function() {                             // 0000
 | 
						|
  var x = 42;                             // 0050
 | 
						|
  switch (x) {                            // 0100
 | 
						|
    case 41: nop(); break;                // 0150
 | 
						|
    case 42: nop(); break;                // 0200
 | 
						|
    default: nop(); break;                // 0250
 | 
						|
  }                                       // 0300
 | 
						|
}();                                      // 0350
 | 
						|
`,
 | 
						|
[{"start":0,"end":399,"count":1},
 | 
						|
 {"start":1,"end":351,"count":1},
 | 
						|
 {"start":154,"end":204,"count":0},
 | 
						|
 {"start":226,"end":303,"count":0}]
 | 
						|
);
 | 
						|
 | 
						|
TestCoverage(
 | 
						|
"labeled break statements",
 | 
						|
`
 | 
						|
!function() {                             // 0000
 | 
						|
  var x = 42;                             // 0050
 | 
						|
  l0: switch (x) {                        // 0100
 | 
						|
  case 41: return;                        // 0150
 | 
						|
  case 42:                                // 0200
 | 
						|
    switch (x) { case 42: break l0; }     // 0250
 | 
						|
    break;                                // 0300
 | 
						|
  }                                       // 0350
 | 
						|
  l1: for (;;) {                          // 0400
 | 
						|
    for (;;) break l1;                    // 0450
 | 
						|
  }                                       // 0500
 | 
						|
  l2: while (true) {                      // 0550
 | 
						|
    while (true) break l2;                // 0600
 | 
						|
  }                                       // 0650
 | 
						|
  l3: do {                                // 0700
 | 
						|
    do { break l3; } while (true);        // 0750
 | 
						|
  } while (true);                         // 0800
 | 
						|
  l4: { break l4; }                       // 0850
 | 
						|
  l5: for (;;) for (;;) break l5;         // 0900
 | 
						|
}();                                      // 0950
 | 
						|
`,
 | 
						|
[{"start":0,"end":999,"count":1},
 | 
						|
 {"start":1,"end":951,"count":1},
 | 
						|
 {"start":152,"end":202,"count":0},
 | 
						|
 {"start":285,"end":353,"count":0},
 | 
						|
 {"start":472,"end":503,"count":0},
 | 
						|
 {"start":626,"end":653,"count":0},
 | 
						|
 {"start":768,"end":803,"count":0},
 | 
						|
 {"start":867,"end":869,"count":0}]
 | 
						|
);
 | 
						|
 | 
						|
TestCoverage(
 | 
						|
"labeled continue statements",
 | 
						|
`
 | 
						|
!function() {                             // 0000
 | 
						|
  l0: for (var i0 = 0; i0 < 2; i0++) {    // 0050
 | 
						|
    for (;;) continue l0;                 // 0100
 | 
						|
  }                                       // 0150
 | 
						|
  var i1 = 0;                             // 0200
 | 
						|
  l1: while (i1 < 2) {                    // 0250
 | 
						|
    i1++;                                 // 0300
 | 
						|
    while (true) continue l1;             // 0350
 | 
						|
  }                                       // 0400
 | 
						|
  var i2 = 0;                             // 0450
 | 
						|
  l2: do {                                // 0500
 | 
						|
    i2++;                                 // 0550
 | 
						|
    do { continue l2; } while (true);     // 0600
 | 
						|
  } while (i2 < 2);                       // 0650
 | 
						|
}();                                      // 0700
 | 
						|
`,
 | 
						|
[{"start":0,"end":749,"count":1},
 | 
						|
 {"start":1,"end":701,"count":1},
 | 
						|
 {"start":87,"end":153,"count":2},
 | 
						|
 {"start":125,"end":153,"count":0},
 | 
						|
 {"start":271,"end":403,"count":2},
 | 
						|
 {"start":379,"end":403,"count":0},
 | 
						|
 {"start":509,"end":653,"count":2},
 | 
						|
 {"start":621,"end":653,"count":0}]
 | 
						|
);
 | 
						|
 | 
						|
TestCoverage(
 | 
						|
"conditional expressions",
 | 
						|
`
 | 
						|
var TRUE = true;                          // 0000
 | 
						|
var FALSE = false;                        // 0050
 | 
						|
!function() {                             // 0100
 | 
						|
  TRUE ? nop() : nop();                   // 0150
 | 
						|
  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":165,"end":172,"count":0},
 | 
						|
 {"start":215,"end":222,"count":0},
 | 
						|
 {"start":258,"end":265,"count":0},
 | 
						|
 {"start":308,"end":372,"count":0},
 | 
						|
 {"start":465,"end":472,"count":0},
 | 
						|
 {"start":557,"end":564,"count":0},
 | 
						|
 {"start":615,"end":680,"count":0},
 | 
						|
 {"start":708,"end":715,"count":0},
 | 
						|
 {"start":773,"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":114,"count":1},
 | 
						|
 {"start":114,"end":121,"count":0},
 | 
						|
 {"start":122,"end":129,"count":1},
 | 
						|
 {"start":129,"end":200,"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":100,"count":0},
 | 
						|
 {"start":264,"end":353,"count":3},
 | 
						|
 {"start":312,"end":352,"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":254,"count":0},
 | 
						|
 {"start":254,"end":272,"count":1},
 | 
						|
 {"start":272,"end":350,"count":0}]
 | 
						|
);
 | 
						|
 | 
						|
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":154,"count":0},
 | 
						|
 {"start":154,"end":310,"count":1},
 | 
						|
 {"start":310,"end":350,"count":0}]
 | 
						|
);
 | 
						|
 | 
						|
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":115,"count":1},
 | 
						|
 {"start":115,"end":122,"count":0},
 | 
						|
 {"start":123,"end":130,"count":1},
 | 
						|
 {"start":130,"end":200,"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":100,"count":0},
 | 
						|
 {"start":264,"end":353,"count":3},
 | 
						|
 {"start":317,"end":352,"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":150,"count":1}]
 | 
						|
);
 | 
						|
 | 
						|
TestCoverage(
 | 
						|
"LogicalOrExpression assignment",
 | 
						|
`
 | 
						|
const a = true || 99                      // 0000
 | 
						|
function b () {                           // 0050
 | 
						|
  const b = a || 2                        // 0100
 | 
						|
}                                         // 0150
 | 
						|
b()                                       // 0200
 | 
						|
b()                                       // 0250
 | 
						|
`,
 | 
						|
[{"start":0,"end":299,"count":1},
 | 
						|
 {"start":15,"end":20,"count":0},
 | 
						|
 {"start":50,"end":151,"count":2},
 | 
						|
 {"start":114,"end":118,"count":0}]);
 | 
						|
 | 
						|
TestCoverage(
 | 
						|
"LogicalOrExpression IsTest()",
 | 
						|
`
 | 
						|
true || false                             // 0000
 | 
						|
const a = 99                              // 0050
 | 
						|
a || 50                                   // 0100
 | 
						|
const b = false                           // 0150
 | 
						|
if (b || true) {}                         // 0200
 | 
						|
`,
 | 
						|
[{"start":0,"end":249,"count":1},
 | 
						|
 {"start":5,"end":13,"count":0},
 | 
						|
 {"start":102,"end":107,"count":0}]);
 | 
						|
 | 
						|
TestCoverage(
 | 
						|
"LogicalAndExpression assignment",
 | 
						|
`
 | 
						|
const a = false && 99                     // 0000
 | 
						|
function b () {                           // 0050
 | 
						|
  const b = a && 2                        // 0100
 | 
						|
}                                         // 0150
 | 
						|
b()                                       // 0200
 | 
						|
b()                                       // 0250
 | 
						|
const c = true && 50                      // 0300
 | 
						|
`,
 | 
						|
[{"start":0,"end":349,"count":1},
 | 
						|
 {"start":16,"end":21,"count":0},
 | 
						|
 {"start":50,"end":151,"count":2},
 | 
						|
 {"start":114,"end":118,"count":0}]);
 | 
						|
 | 
						|
TestCoverage(
 | 
						|
"LogicalAndExpression IsTest()",
 | 
						|
`
 | 
						|
false && true                             // 0000
 | 
						|
const a = 0                               // 0050
 | 
						|
a && 50                                   // 0100
 | 
						|
const b = true                            // 0150
 | 
						|
if (b && true) {}                         // 0200
 | 
						|
true && true                              // 0250
 | 
						|
`,
 | 
						|
[{"start":0,"end":299,"count":1},
 | 
						|
 {"start":6,"end":13,"count":0},
 | 
						|
 {"start":102,"end":107,"count":0}]);
 | 
						|
 | 
						|
TestCoverage(
 | 
						|
"NaryLogicalOr assignment",
 | 
						|
`
 | 
						|
const a = true                            // 0000
 | 
						|
const b = false                           // 0050
 | 
						|
const c = false || false || 99            // 0100
 | 
						|
const d = false || true || 99             // 0150
 | 
						|
const e = true || true || 99              // 0200
 | 
						|
const f = b || b || 99                    // 0250
 | 
						|
const g = b || a || 99                    // 0300
 | 
						|
const h = a || a || 99                    // 0350
 | 
						|
const i = a || (b || c) || d              // 0400
 | 
						|
`,
 | 
						|
[{"start":0,"end":449,"count":1},
 | 
						|
 {"start":174,"end":179,"count":0},
 | 
						|
 {"start":215,"end":222,"count":0},
 | 
						|
 {"start":223,"end":228,"count":0},
 | 
						|
 {"start":317,"end":322,"count":0},
 | 
						|
 {"start":362,"end":366,"count":0},
 | 
						|
 {"start":367,"end":372,"count":0},
 | 
						|
 {"start":412,"end":423,"count":0},
 | 
						|
 {"start":424,"end":428,"count":0}]);
 | 
						|
 | 
						|
TestCoverage(
 | 
						|
"NaryLogicalOr IsTest()",
 | 
						|
`
 | 
						|
const a = true                            // 0000
 | 
						|
const b = false                           // 0050
 | 
						|
false || false || 99                      // 0100
 | 
						|
false || true || 99                       // 0150
 | 
						|
true || true || 99                        // 0200
 | 
						|
b || b || 99                              // 0250
 | 
						|
b || a || 99                              // 0300
 | 
						|
a || a || 99                              // 0350
 | 
						|
`,
 | 
						|
[{"start":0,"end":399,"count":1},
 | 
						|
 {"start":164,"end":169,"count":0},
 | 
						|
 {"start":205,"end":212,"count":0},
 | 
						|
 {"start":213,"end":218,"count":0},
 | 
						|
 {"start":307,"end":312,"count":0},
 | 
						|
 {"start":352,"end":356,"count":0},
 | 
						|
 {"start":357,"end":362,"count":0}]);
 | 
						|
 | 
						|
TestCoverage(
 | 
						|
"NaryLogicalAnd assignment",
 | 
						|
`
 | 
						|
const a = true                            // 0000
 | 
						|
const b = false                           // 0050
 | 
						|
const c = false && false && 99            // 0100
 | 
						|
const d = false && true && 99             // 0150
 | 
						|
const e = true && true && 99              // 0200
 | 
						|
const f = true && false || true           // 0250
 | 
						|
const g = true || false && true           // 0300
 | 
						|
`,
 | 
						|
[{"start":0,"end":349,"count":1},
 | 
						|
 {"start":116,"end":124,"count":0},
 | 
						|
 {"start":125,"end":130,"count":0},
 | 
						|
 {"start":166,"end":173,"count":0},
 | 
						|
 {"start":174,"end":179,"count":0},
 | 
						|
 {"start":315,"end":331,"count":0}
 | 
						|
]);
 | 
						|
 | 
						|
TestCoverage(
 | 
						|
"NaryLogicalAnd IsTest()",
 | 
						|
`
 | 
						|
const a = true                            // 0000
 | 
						|
const b = false                           // 0050
 | 
						|
false && false && 99                      // 0100
 | 
						|
false && true && 99                       // 0150
 | 
						|
true && true && 99                        // 0200
 | 
						|
true && false || true                     // 0250
 | 
						|
true || false && true                     // 0300
 | 
						|
false || false || 99 || 55                // 0350
 | 
						|
`,
 | 
						|
[{"start":0,"end":399,"count":1},
 | 
						|
 {"start":106,"end":114,"count":0},
 | 
						|
 {"start":115,"end":120,"count":0},
 | 
						|
 {"start":156,"end":163,"count":0},
 | 
						|
 {"start":164,"end":169,"count":0},
 | 
						|
 {"start":305,"end":321,"count":0},
 | 
						|
 {"start":371,"end":376,"count":0}]);
 | 
						|
 | 
						|
// see regression: https://bugs.chromium.org/p/chromium/issues/detail?id=785778
 | 
						|
TestCoverage(
 | 
						|
"logical expressions + conditional expressions",
 | 
						|
`
 | 
						|
const a = true                            // 0000
 | 
						|
const b = 99                              // 0050
 | 
						|
const c = false                           // 0100
 | 
						|
const d = ''                              // 0150
 | 
						|
const e = a && (b ? 'left' : 'right')     // 0200
 | 
						|
const f = a || (b ? 'left' : 'right')     // 0250
 | 
						|
const g = c || d ? 'left' : 'right'       // 0300
 | 
						|
const h = a && b && (b ? 'left' : 'right')// 0350
 | 
						|
const i = d || c || (c ? 'left' : 'right')// 0400
 | 
						|
`,
 | 
						|
[{"start":0,"end":449,"count":1},
 | 
						|
 {"start":227,"end":236,"count":0},
 | 
						|
 {"start":262,"end":287,"count":0},
 | 
						|
 {"start":317,"end":325,"count":0},
 | 
						|
 {"start":382,"end":391,"count":0},
 | 
						|
 {"start":423,"end":431,"count":0}
 | 
						|
]);
 | 
						|
 | 
						|
TestCoverage(
 | 
						|
"https://crbug.com/827530",
 | 
						|
`
 | 
						|
Util = {};                                // 0000
 | 
						|
Util.escape = function UtilEscape(str) {  // 0050
 | 
						|
  if (!str) {                             // 0100
 | 
						|
    return 'if';                          // 0150
 | 
						|
  } else {                                // 0200
 | 
						|
    return 'else';                        // 0250
 | 
						|
  }                                       // 0300
 | 
						|
};                                        // 0350
 | 
						|
Util.escape("foo.bar");                   // 0400
 | 
						|
`,
 | 
						|
[{"start":0,"end":449,"count":1},
 | 
						|
 {"start":64,"end":351,"count":1},
 | 
						|
 {"start":112,"end":203,"count":0},
 | 
						|
 {"start":268,"end":350,"count":0}]
 | 
						|
);
 | 
						|
 | 
						|
TestCoverage(
 | 
						|
"https://crbug.com/v8/8237",
 | 
						|
`
 | 
						|
!function() {                             // 0000
 | 
						|
  if (true)                               // 0050
 | 
						|
    while (false) return; else nop();     // 0100
 | 
						|
}();                                      // 0150
 | 
						|
!function() {                             // 0200
 | 
						|
  if (true) l0: { break l0; } else        // 0250
 | 
						|
    if (nop()) { }                        // 0300
 | 
						|
}();                                      // 0350
 | 
						|
!function() {                             // 0400
 | 
						|
  if (true) { if (false) { return; }      // 0450
 | 
						|
  } else if (nop()) { } }();              // 0500
 | 
						|
!function(){                              // 0550
 | 
						|
  if(true)while(false)return;else nop()   // 0600
 | 
						|
}();                                      // 0650
 | 
						|
!function(){                              // 0700
 | 
						|
  if(true) l0:{break l0}else if (nop()){} // 0750
 | 
						|
}();                                      // 0800
 | 
						|
!function(){                              // 0850
 | 
						|
  if(true){if(false){return}}else         // 0900
 | 
						|
    if(nop()){}                           // 0950
 | 
						|
}();                                      // 1000
 | 
						|
`,
 | 
						|
[{"start":0,"end":1049,"count":1},
 | 
						|
 {"start":1,"end":151,"count":1},
 | 
						|
 {"start":118,"end":137,"count":0},
 | 
						|
 {"start":201,"end":351,"count":1},
 | 
						|
 {"start":277,"end":318,"count":0},
 | 
						|
 {"start":401,"end":525,"count":1},
 | 
						|
 {"start":475,"end":486,"count":0},
 | 
						|
 {"start":503,"end":523,"count":0},
 | 
						|
 {"start":551,"end":651,"count":1},
 | 
						|
 {"start":622,"end":639,"count":0},
 | 
						|
 {"start":701,"end":801,"count":1},
 | 
						|
 {"start":773,"end":791,"count":0},
 | 
						|
 {"start":851,"end":1001,"count":1},
 | 
						|
 {"start":920,"end":928,"count":0},
 | 
						|
 {"start":929,"end":965,"count":0}]
 | 
						|
);
 | 
						|
 | 
						|
%DebugToggleBlockCoverage(false);
 |