v8/test/mjsunit/code-coverage-block.js
bcoe fe191e8d05 [coverage] optional chaining coverage
Implement coverage tracking for optional chains.

Bug: v8:10060
Change-Id: I4f29eda64b6d859939f5f58f4fabead649905795
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2573013
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Gus Caplan <snek@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Benjamin Coe <bencoe@google.com>
Cr-Commit-Position: refs/heads/master@{#72075}
2021-01-13 17:09:47 +00:00

1236 lines
43 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 --no-stress-flush-bytecode
// 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(
"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}]
);
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":254,"end":274,"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":91,"end":150,"count":0},
{"start":201,"end":401,"count":1},
{"start":321,"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":91,"end":150,"count":0},
{"start":201,"end":351,"count":1},
{"start":286,"end":350,"count":0},
{"start":401,"end":701,"count":1},
{"start":603,"end":700,"count":0},
{"start":561,"end":568,"count":0},
{"start":751,"end":1051,"count":1},
{"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":176,"count":0},
{"start":254,"end":276,"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":168,"count":0},
{"start":287,"end":310,"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":271,"end":403,"count":2},
{"start":509,"end":653,"count":2}]
);
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":1},
{"start":114,"end":121,"count":0},
{"start":129,"end":200,"count":0}]
);
TestCoverage(
"yield expressions twice",
`
function* gen() { // 0000
yield nop(); // 0050
yield nop() ? nop() : nop() // 0100
return nop(); // 0150
}; // 0200
{const it = gen(); it.next(); it.next();} // 0250
{const it = gen(); it.next(); it.next();} // 0300
`,
[{"start":0,"end":349,"count":1},
{"start":0,"end":201,"count":2},
{"start":114,"end":121,"count":0},
{"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":1},
{"start":60,"end":100,"count":0},
{"start":264,"end":353,"count":1},
{"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":1},
{"start":112,"end":254,"count":0},
{"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":1},
{"start":112,"end":154,"count":0},
{"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":1},
{"start":115,"end":122,"count":0},
{"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":1},
{"start":65,"end":100,"count":0},
{"start":264,"end":353,"count":1},
{"start":317,"end":352,"count":0}]
);
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}]
);
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
`,
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{"start":1,"end":151,"count":1},
{"start":118,"end":137,"count":0},
{"start":201,"end":351,"count":1},
{"start":279,"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":774,"end":791,"count":0},
{"start":851,"end":1001,"count":1},
{"start":920,"end":928,"count":0},
{"start":929,"end":965,"count":0}]
);
TestCoverage(
"terminal break statement",
`
while (true) { // 0000
const b = false // 0050
break // 0100
} // 0150
let stop = false // 0200
while (true) { // 0250
if (stop) { // 0300
break // 0350
} // 0400
stop = true // 0450
} // 0500
`,
[{"start":0,"end":549,"count":1},
{"start":263,"end":501,"count":2},
{"start":312,"end":501,"count":1}]
);
TestCoverage(
"terminal return statement",
`
function a () { // 0000
const b = false // 0050
return 1 // 0100
} // 0150
const b = (early) => { // 0200
if (early) { // 0250
return 2 // 0300
} // 0350
return 3 // 0400
} // 0450
const c = () => { // 0500
if (true) { // 0550
return // 0600
} // 0650
} // 0700
a(); b(false); b(true); c() // 0750
`,
[{"start":0,"end":799,"count":1},
{"start":0,"end":151,"count":1},
{"start":210,"end":451,"count":2},
{"start":263,"end":450,"count":1},
{"start":510,"end":701,"count":1}]
);
TestCoverage(
"terminal blocks",
`
function a () { // 0000
{ // 0050
return 'a' // 0100
} // 0150
} // 0200
function b () { // 0250
{ // 0300
{ // 0350
return 'b' // 0400
} // 0450
} // 0500
} // 0550
a(); b() // 0600
`,
[{"start":0,"end":649,"count":1},
{"start":0,"end":201,"count":1},
{"start":250,"end":551,"count":1}]
);
TestCoverage(
"terminal if statements",
`
function a (branch) { // 0000
if (branch) { // 0050
return 'a' // 0100
} else { // 0150
return 'b' // 0200
} // 0250
} // 0300
function b (branch) { // 0350
if (branch) { // 0400
if (branch) { // 0450
return 'c' // 0500
} // 0550
} // 0600
} // 0650
function c (branch) { // 0700
if (branch) { // 0750
return 'c' // 0800
} else { // 0850
return 'd' // 0900
} // 0950
} // 1000
function d (branch) { // 1050
if (branch) { // 1100
if (!branch) { // 1150
return 'e' // 1200
} else { // 1250
return 'f' // 1300
} // 1350
} else { // 1400
// noop // 1450
} // 1500
} // 1550
a(true); a(false); b(true); b(false) // 1600
c(true); d(true); // 1650
`,
[{"start":0,"end":1699,"count":1},
{"start":0,"end":301,"count":2},
{"start":64,"end":253,"count":1},
{"start":350,"end":651,"count":2},
{"start":414,"end":603,"count":1},
{"start":700,"end":1001,"count":1},
{"start":853,"end":953,"count":0},
{"start":1050,"end":1551,"count":1},
{"start":1167,"end":1255,"count":0},
{"start":1403,"end":1503,"count":0}]
);
TestCoverage(
"https://crbug.com/927464",
`
!function f() { // 0000
function unused() { nop(); } // 0050
nop(); // 0100
}(); // 0150
`,
[{"start":0,"end":199,"count":1},
{"start":1,"end":151,"count":1},
{"start":52,"end":80,"count":0}]
);
TestCoverage(
"https://crbug.com/v8/8691",
`
function f(shouldThrow) { // 0000
if (shouldThrow) { // 0050
throw Error('threw') // 0100
} // 0150
} // 0200
try { // 0250
f(true) // 0300
} catch (err) { // 0350
// 0400
} // 0450
try { // 0500
f(false) // 0550
} catch (err) {} // 0600
`,
[{"start":0,"end":649,"count":1},
{"start":602,"end":616,"count":0},
{"start":0,"end":201,"count":2},
{"start":69,"end":153,"count":1}]
);
TestCoverage(
"https://crbug.com/v8/9705",
`
function f(x) { // 0000
switch (x) { // 0050
case 40: nop(); // 0100
case 41: nop(); return 1; // 0150
case 42: nop(); break; // 0200
} // 0250
return 3; // 0300
}; // 0350
f(40); // 0400
f(41); // 0450
f(42); // 0500
f(43); // 0550
`,
[{"start":0,"end":599,"count":1},
{"start":0,"end":351,"count":4},
{"start":104,"end":119,"count":1},
{"start":154,"end":179,"count":2},
{"start":204,"end":226,"count":1},
{"start":253,"end":350,"count":2}]
);
TestCoverage(
"https://crbug.com/v8/9705",
`
function f(x) { // 0000
switch (x) { // 0050
case 40: nop(); // 0100
case 41: nop(); return 1; // 0150
case 42: nop(); break; // 0200
} // 0250
return 3; // 0300
}; // 0350
f(42); // 0400
f(43); // 0450
`,
[{"start":0,"end":499,"count":1},
{"start":0,"end":351,"count":2},
{"start":104,"end":119,"count":0},
{"start":154,"end":179,"count":0},
{"start":204,"end":226,"count":1}]
);
TestCoverage(
"https://crbug.com/v8/9857",
`function foo() {}`,
[{"start":0,"end":17,"count":1},
{"start":0,"end":17,"count":0}]
);
TestCoverage(
"https://crbug.com/v8/9857",
`function foo() {function bar() {}}; foo()`,
[{"start":0,"end":41,"count":1},
{"start":0,"end":34,"count":1},
{"start":16,"end":33,"count":0}]
);
TestCoverage(
"https://crbug.com/v8/9952",
`
function test(foo = "foodef") { // 0000
return {bar}; // 0050
// 0100
function bar() { // 0150
console.log("test"); // 0200
} // 0250
} // 0300
test().bar(); // 0350
`,
[{"start":0,"end":399,"count":1},
{"start":0,"end":301,"count":1},
{"start":152,"end":253,"count":1}]);
TestCoverage(
"https://crbug.com/v8/9952",
`
function test(foo = (()=>{})) { // 0000
return {foo}; // 0050
} // 0100
// 0150
test(()=>{}).foo(); // 0200
`,
[{"start":0,"end":249,"count":1},
{"start":0,"end":101,"count":1},
{"start":21,"end":27,"count":0},
{"start":205,"end":211,"count":1}]
);
TestCoverage(
"https://crbug.com/v8/10030 - original",
`
function a (shouldThrow) { // 0000
try { // 0050
if (shouldThrow) // 0100
throw Error('I threw!'); // 0150
return 'I ran'; // 0200
} catch(e) { // 0250
console.info('caught'); // 0300
} // 0350
} // 0400
a(false); // 0450
a(true); // 0500
`,
[{"start":0,"end":549,"count":1},
{"start":0,"end":401,"count":2},
{"start":156,"end":353,"count":1}]
);
TestCoverage(
"https://crbug.com/v8/10030 - only throw",
`
function a (shouldThrow) { // 0000
try { // 0050
if (shouldThrow) // 0100
throw Error('I threw!'); // 0150
return 'I ran'; // 0200
} catch(e) { // 0250
console.info('caught'); // 0300
} // 0350
} // 0400
a(true); // 0450
`,
[{"start":0,"end":499,"count":1},
{"start":0,"end":401,"count":1},
{"start":180,"end":254,"count":0}]
);
TestCoverage(
"https://crbug.com/v8/10030 - finally",
`
function a (shouldThrow) { // 0000
try { // 0050
return 'I ran'; // 0100
} finally { // 0150
console.info('finally'); // 0200
} // 0250
} // 0300
a(false); // 0350
a(true); // 0400
`,
[{"start":0,"end":449,"count":1},
{"start":0,"end":301,"count":2}]);
TestCoverage(
"https://crbug.com/v8/10030 - catch & finally",
`
function a (shouldThrow) { // 0000
try { // 0050
return 'I ran'; // 0100
} catch (e) { // 0150
console.info('caught'); // 0200
} finally { // 0250
console.info('finally'); // 0300
} // 0350
} // 0400
a(false); // 0450
a(true); // 0500
`,
[{"start":0,"end":549,"count":1},
{"start":0,"end":401,"count":2},
{"start":154,"end":254,"count":0}]);
TestCoverage(
"https://crbug.com/v8/11231 - nullish coalescing",
`
const a = true // 0000
const b = false // 0050
const c = undefined // 0100
const d = a ?? 99 // 0150
const e = 33 // 0200
const f = b ?? (c ?? 99) // 0250
const g = 33 // 0300
const h = c ?? (c ?? 'hello') // 0350
const i = c ?? b ?? 'hello' // 0400
`,
[{"start":0,"end":449,"count":1},
{"start":162,"end":167,"count":0},
{"start":262,"end":274,"count":0},
{"start":417,"end":427,"count":0}]);
TestCoverage(
"Optional Chaining",
`
const a = undefined || null // 0000
const b = a?.b // 0050
const c = a?.['b'] // 0100
const d = { // 0150
e: {f: 99, g: () => {return undefined}} // 0200
} // 0250
const e = d?.e?.f // 0300
const f = d?.e?.['f'] // 0350
const g = d?.e?.f?.g // 0400
const h = d?.e?.f?.g?.h // 0450
const i = d?.['d']?.['e']?.['h'] // 0500
const k = a?.('b') // 0550
const l = d?.e?.g?.() // 0600
const m = d?.e?.g?.()?.a?.b // 0650
delete a?.b // 0700
const n = d?.[d?.x?.f] // 0750
if (a?.[d?.x?.f]) { const p = 99 } else {}// 0800
const p = d?.[d?.x?.f]?.x // 0850
`,
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{"start":61,"end":64,"count":0},
{"start":111,"end":118,"count":0},
{"start":470,"end":473,"count":0},
{"start":518,"end":532,"count":0},
{"start":561,"end":568,"count":0},
{"start":671,"end":677,"count":0},
{"start":708,"end":711,"count":0},
{"start":768,"end":771,"count":0},
{"start":805,"end":816,"count":0},
{"start":818,"end":834,"count":0},
{"start":868,"end":871,"count":0},
{"start":872,"end":875,"count":0},
{"start":216,"end":240,"count":2}]);
%DebugToggleBlockCoverage(false);