mirror of
				https://github.com/tc39/test262.git
				synced 2025-10-31 03:34:08 +01:00 
			
		
		
		
	
		
			
				
	
	
		
			854 lines
		
	
	
		
			30 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			854 lines
		
	
	
		
			30 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| // Copyright 2017 the V8 project authors. All rights reserved.
 | |
| // Use of this source code is governed by a BSD-style license that can be
 | |
| // found in the LICENSE file.
 | |
| 
 | |
| // Flags: --allow-natives-syntax --no-always-opt
 | |
| // Files: test/mjsunit/code-coverage-utils.js
 | |
| 
 | |
| %DebugToggleBlockCoverage(true);
 | |
| 
 | |
| TestCoverage(
 | |
| "call an IIFE",
 | |
| `
 | |
| (function f() {})();
 | |
| `,
 | |
| [{"start":0,"end":20,"count":1},{"start":1,"end":16,"count":1}]
 | |
| );
 | |
| 
 | |
| TestCoverage(
 | |
| "call locally allocated function",
 | |
| `let f = () => 1; f();`,
 | |
| [{"start":0,"end":21,"count":1},{"start":8,"end":15,"count":1}]
 | |
| );
 | |
| 
 | |
| TestCoverage(
 | |
| "if statements",
 | |
| `
 | |
| function g() {}                           // 0000
 | |
| function f(x) {                           // 0050
 | |
|   if (x == 42) {                          // 0100
 | |
|     if (x == 43) g(); else g();           // 0150
 | |
|   }                                       // 0200
 | |
|   if (x == 42) { g(); } else { g(); }     // 0250
 | |
|   if (x == 42) g(); else g();             // 0300
 | |
|   if (false) g(); else g();               // 0350
 | |
|   if (false) g();                         // 0400
 | |
|   if (true) g(); else g();                // 0450
 | |
|   if (true) g();                          // 0500
 | |
| }                                         // 0550
 | |
| f(42);                                    // 0600
 | |
| f(43);                                    // 0650
 | |
| if (true) {                               // 0700
 | |
|   const foo = 'bar';                      // 0750
 | |
| } else {                                  // 0800
 | |
|   const bar = 'foo';                      // 0850
 | |
| }                                         // 0900
 | |
| `,
 | |
| [{"start":0,"end":949,"count":1},
 | |
|  {"start":801,"end":901,"count":0},
 | |
|  {"start":0,"end":15,"count":11},
 | |
|  {"start":50,"end":551,"count":2},
 | |
|  {"start":115,"end":203,"count":1},
 | |
|  {"start":167,"end":171,"count":0},
 | |
|  {"start":265,"end":287,"count":1},
 | |
|  {"start":315,"end":329,"count":1},
 | |
|  {"start":363,"end":367,"count":0},
 | |
|  {"start":413,"end":417,"count":0},
 | |
|  {"start":466,"end":476,"count":0}]
 | |
| );
 | |
| 
 | |
| TestCoverage(
 | |
| "if statement (early return)",
 | |
| `
 | |
| !function() {                             // 0000
 | |
|   if (true) {                             // 0050
 | |
|     nop();                                // 0100
 | |
|     return;                               // 0150
 | |
|     nop();                                // 0200
 | |
|   }                                       // 0250
 | |
|   nop();                                  // 0300
 | |
| }()                                       // 0350
 | |
| `,
 | |
| [{"start":0,"end":399,"count":1},
 | |
|  {"start":1,"end":351,"count":1},
 | |
|  {"start":161,"end":350,"count":0}]
 | |
| );
 | |
| 
 | |
| TestCoverage(
 | |
| "if statement (no semi-colon)",
 | |
| `
 | |
| !function() {                             // 0000
 | |
|   if (true) nop()                         // 0050
 | |
|   if (true) nop(); else nop()             // 0100
 | |
|   nop();                                  // 0150
 | |
| }()                                       // 0200
 | |
| `,
 | |
| [{"start":0,"end":249,"count":1},
 | |
|  {"start":1,"end":201,"count":1},
 | |
|  {"start":118,"end":129,"count":0}]
 | |
| );
 | |
| 
 | |
| TestCoverage(
 | |
| "for statements",
 | |
| `
 | |
| function g() {}                           // 0000
 | |
| !function() {                             // 0050
 | |
|   for (var i = 0; i < 12; i++) g();       // 0100
 | |
|   for (var i = 0; i < 12; i++) {          // 0150
 | |
|     g();                                  // 0200
 | |
|   }                                       // 0250
 | |
|   for (var i = 0; false; i++) g();        // 0300
 | |
|   for (var i = 0; true; i++) break;       // 0350
 | |
|   for (var i = 0; i < 12; i++) {          // 0400
 | |
|     if (i % 3 == 0) g(); else g();        // 0450
 | |
|   }                                       // 0500
 | |
| }();                                      // 0550
 | |
| `,
 | |
| [{"start":0,"end":599,"count":1},
 | |
|  {"start":0,"end":15,"count":36},
 | |
|  {"start":51,"end":551,"count":1},
 | |
|  {"start":131,"end":135,"count":12},
 | |
|  {"start":181,"end":253,"count":12},
 | |
|  {"start":330,"end":334,"count":0},
 | |
|  {"start":431,"end":503,"count":12},
 | |
|  {"start":470,"end":474,"count":4},
 | |
|  {"start":474,"end":484,"count":8}]
 | |
| );
 | |
| 
 | |
| TestCoverage(
 | |
| "for statements pt. 2",
 | |
| `
 | |
| function g() {}                           // 0000
 | |
| !function() {                             // 0050
 | |
|   let j = 0;                              // 0100
 | |
|   for (let i = 0; i < 12; i++) g();       // 0150
 | |
|   for (const i = 0; j < 12; j++) g();     // 0200
 | |
|   for (j = 0; j < 12; j++) g();           // 0250
 | |
|   for (;;) break;                         // 0300
 | |
| }();                                      // 0350
 | |
| `,
 | |
| [{"start":0,"end":399,"count":1},
 | |
|  {"start":0,"end":15,"count":36},
 | |
|  {"start":51,"end":351,"count":1},
 | |
|  {"start":181,"end":185,"count":12},
 | |
|  {"start":233,"end":237,"count":12},
 | |
|  {"start":277,"end":281,"count":12}]
 | |
| );
 | |
| 
 | |
| TestCoverage(
 | |
| "for statements (no semicolon)",
 | |
| `
 | |
| function g() {}                           // 0000
 | |
| !function() {                             // 0050
 | |
|   for (let i = 0; i < 12; i++) g()        // 0100
 | |
|   for (let i = 0; i < 12; i++) break      // 0150
 | |
|   for (let i = 0; i < 12; i++) break; g() // 0200
 | |
| }();                                      // 0250
 | |
| `,
 | |
| [{"start":0,"end":299,"count":1},
 | |
|  {"start":0,"end":15,"count":13},
 | |
|  {"start":51,"end":251,"count":1},
 | |
|  {"start":131,"end":134,"count":12}]
 | |
| );
 | |
| 
 | |
| TestCoverage(
 | |
| "for statement (early return)",
 | |
| `
 | |
| !function() {                             // 0000
 | |
|   for (var i = 0; i < 10; i++) {          // 0050
 | |
|     nop();                                // 0100
 | |
|     continue;                             // 0150
 | |
|     nop();                                // 0200
 | |
|   }                                       // 0250
 | |
|   nop();                                  // 0300
 | |
|   for (;;) {                              // 0350
 | |
|     nop();                                // 0400
 | |
|     break;                                // 0450
 | |
|     nop();                                // 0500
 | |
|   }                                       // 0550
 | |
|   nop();                                  // 0600
 | |
|   for (;;) {                              // 0650
 | |
|     nop();                                // 0700
 | |
|     return;                               // 0750
 | |
|     nop();                                // 0800
 | |
|   }                                       // 0850
 | |
|   nop();                                  // 0900
 | |
| }()                                       // 0950
 | |
| `,
 | |
| [{"start":0,"end":999,"count":1},
 | |
|  {"start":1,"end":951,"count":1},
 | |
|  {"start":81,"end":253,"count":10},
 | |
|  {"start":163,"end":253,"count":0},
 | |
|  {"start":460,"end":553,"count":0},
 | |
|  {"start":761,"end":950,"count":0}]
 | |
| );
 | |
| 
 | |
| TestCoverage(
 | |
| "for-of and for-in statements",
 | |
| `
 | |
| !function() {                             // 0000
 | |
|   var i;                                  // 0050
 | |
|   for (i of [0,1,2,3]) { nop(); }         // 0100
 | |
|   for (let j of [0,1,2,3]) { nop(); }     // 0150
 | |
|   for (i in [0,1,2,3]) { nop(); }         // 0200
 | |
|   for (let j in [0,1,2,3]) { nop(); }     // 0250
 | |
|   var xs = [{a:0, b:1}, {a:1,b:0}];       // 0300
 | |
|   for (var {a: x, b: y} of xs) { nop(); } // 0350
 | |
| }();                                      // 0400
 | |
| `,
 | |
| [{"start":0,"end":449,"count":1},
 | |
|  {"start":1,"end":401,"count":1},
 | |
|  {"start":123,"end":133,"count":4},
 | |
|  {"start":177,"end":187,"count":4},
 | |
|  {"start":223,"end":233,"count":4},
 | |
|  {"start":277,"end":287,"count":4},
 | |
|  {"start":381,"end":391,"count":2}]
 | |
| );
 | |
| 
 | |
| TestCoverage(
 | |
| "for-await-of statements",
 | |
| `
 | |
| !async function() {                       // 0000
 | |
|   for await (var x of [0,1,2,3]) {        // 0050
 | |
|     nop();                                // 0100
 | |
|   }                                       // 0150
 | |
| }();                                      // 0200
 | |
| %RunMicrotasks();                         // 0250
 | |
| `,
 | |
| [{"start":0,"end":299,"count":1},
 | |
|  {"start":1,"end":201,"count":6},  // TODO(jgruber): Invocation count is off.
 | |
|  {"start":83,"end":153,"count":4},
 | |
|  {"start":153,"end":200,"count":1}]
 | |
| );
 | |
| 
 | |
| TestCoverage(
 | |
| "while and do-while statements",
 | |
| `
 | |
| function g() {}                           // 0000
 | |
| !function() {                             // 0050
 | |
|   var i;                                  // 0100
 | |
|   i = 0; while (i < 12) i++;              // 0150
 | |
|   i = 0; while (i < 12) { g(); i++; }     // 0200
 | |
|   i = 0; while (false) g();               // 0250
 | |
|   i = 0; while (true) break;              // 0300
 | |
|                                           // 0350
 | |
|   i = 0; do i++; while (i < 12);          // 0400
 | |
|   i = 0; do { g(); i++; }                 // 0450
 | |
|          while (i < 12);                  // 0500
 | |
|   i = 0; do { g(); } while (false);       // 0550
 | |
|   i = 0; do { break; } while (true);      // 0600
 | |
| }();                                      // 0650
 | |
| `,
 | |
| [{"start":0,"end":699,"count":1},
 | |
|  {"start":0,"end":15,"count":25},
 | |
|  {"start":51,"end":651,"count":1},
 | |
|  {"start":174,"end":178,"count":12},
 | |
|  {"start":224,"end":237,"count":12},
 | |
|  {"start":273,"end":277,"count":0},
 | |
|  {"start":412,"end":416,"count":12},
 | |
|  {"start":462,"end":475,"count":12},
 | |
|  {"start":620,"end":622,"count":0}]
 | |
| );
 | |
| 
 | |
| TestCoverage(
 | |
| "while statement (early return)",
 | |
| `
 | |
| !function() {                             // 0000
 | |
|   let i = 0;                              // 0050
 | |
|   while (i < 10) {                        // 0100
 | |
|     i++;                                  // 0150
 | |
|     continue;                             // 0200
 | |
|     nop();                                // 0250
 | |
|   }                                       // 0300
 | |
|   nop();                                  // 0350
 | |
|   while (true) {                          // 0400
 | |
|     nop();                                // 0450
 | |
|     break;                                // 0500
 | |
|     nop();                                // 0550
 | |
|   }                                       // 0600
 | |
|   nop();                                  // 0650
 | |
|   while (true) {                          // 0700
 | |
|     nop();                                // 0750
 | |
|     return;                               // 0800
 | |
|     nop();                                // 0850
 | |
|   }                                       // 0900
 | |
|   nop();                                  // 0950
 | |
| }()                                       // 1000
 | |
| `,
 | |
| [{"start":0,"end":1049,"count":1},
 | |
|  {"start":1,"end":1001,"count":1},
 | |
|  {"start":117,"end":303,"count":10},
 | |
|  {"start":213,"end":303,"count":0},
 | |
|  {"start":510,"end":603,"count":0},
 | |
|  {"start":811,"end":1000,"count":0}]
 | |
| );
 | |
| 
 | |
| TestCoverage(
 | |
| "do-while statement (early return)",
 | |
| `
 | |
| !function() {                             // 0000
 | |
|   let i = 0;                              // 0050
 | |
|   do {                                    // 0100
 | |
|     i++;                                  // 0150
 | |
|     continue;                             // 0200
 | |
|     nop();                                // 0250
 | |
|   } while (i < 10);                       // 0300
 | |
|   nop();                                  // 0350
 | |
|   do {                                    // 0400
 | |
|     nop();                                // 0450
 | |
|     break;                                // 0500
 | |
|     nop();                                // 0550
 | |
|   } while (true);                         // 0600
 | |
|   nop();                                  // 0650
 | |
|   do {                                    // 0700
 | |
|     nop();                                // 0750
 | |
|     return;                               // 0800
 | |
|     nop();                                // 0850
 | |
|   } while (true);                         // 0900
 | |
|   nop();                                  // 0950
 | |
| }()                                       // 1000
 | |
| `,
 | |
| [{"start":0,"end":1049,"count":1},
 | |
|  {"start":1,"end":1001,"count":1},
 | |
|  {"start":105,"end":303,"count":10},
 | |
|  {"start":213,"end":303,"count":0},
 | |
|  {"start":510,"end":603,"count":0},
 | |
|  {"start":811,"end":1000,"count":0}]
 | |
| );
 | |
| 
 | |
| TestCoverage(
 | |
| "return statements",
 | |
| `
 | |
| !function() { nop(); return; nop(); }();  // 0000
 | |
| !function() { nop(); return 42;           // 0050
 | |
|               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":868,"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}]
 | |
| );
 | |
| 
 | |
| %DebugToggleBlockCoverage(false);
 |