bcb1b8732a
BUG=v8:4915 LOG=N Review-Url: https://codereview.chromium.org/1955393002 Cr-Commit-Position: refs/heads/master@{#36105}
369 lines
13 KiB
JavaScript
369 lines
13 KiB
JavaScript
// Copyright 2016 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 --harmony-explicit-tailcalls
|
|
// Flags: --harmony-do-expressions
|
|
"use strict";
|
|
|
|
var SyntaxErrorTests = [
|
|
{ msg: "Unexpected expression inside tail call",
|
|
tests: [
|
|
{ src: `()=>{ return continue foo ; }`,
|
|
err: ` ^^^`,
|
|
},
|
|
{ src: `()=>{ return continue 42 ; }`,
|
|
err: ` ^^`,
|
|
},
|
|
{ src: `()=>{ return continue new foo () ; }`,
|
|
err: ` ^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ loop: return continue loop ; }`,
|
|
err: ` ^^^^`,
|
|
},
|
|
{ src: `class A { foo() { return continue super.x ; } }`,
|
|
err: ` ^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return continue this ; }`,
|
|
err: ` ^^^^`,
|
|
},
|
|
{ src: `()=>{ return continue class A {} ; }`,
|
|
err: ` ^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return continue class A extends B {} ; }`,
|
|
err: ` ^^^^^^^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return continue function A() { } ; }`,
|
|
err: ` ^^^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return continue { a: b, c: d} ; }`,
|
|
err: ` ^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return continue function* Gen() { yield 1; } ; }`,
|
|
err: ` ^^^^^^^^^^^^^^^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `function A() { return continue new.target ; }`,
|
|
err: ` ^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return continue () ; }`,
|
|
err: ` ^^`,
|
|
},
|
|
{ src: `()=>{ return continue ( 42 ) ; }`,
|
|
err: ` ^^^^^^`,
|
|
},
|
|
{ src: "()=>{ return continue `123 ${foo} 34lk` ; }",
|
|
err: ` ^^^^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return continue do { x ? foo() : bar() ; } }`,
|
|
err: ` ^^^^^^^^^^^^^^^^^^^^^^^^^^`,
|
|
},
|
|
],
|
|
},
|
|
{ msg: "Tail call expression is not allowed here",
|
|
tests: [
|
|
{ src: `()=>{ return continue continue continue b() ; }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return continue ( continue b() ) ; }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return continue f() - a ; }`,
|
|
err: ` ^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return b + continue f() ; }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return 1, 2, 3, continue f() , 4 ; }`,
|
|
err: ` ^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ var x = continue f ( ) ; }`,
|
|
err: ` ^^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return continue f () ? 1 : 2 ; }`,
|
|
err: ` ^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return (1, 2, 3, continue f()), 4; }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return [1, 2, continue f() ] ; }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return [1, 2, ... continue f() ] ; }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return [1, 2, continue f(), 3 ] ; }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: "()=>{ return `123 ${a} ${ continue foo ( ) } 34lk` ; }",
|
|
err: ` ^^^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return g( 1, 2, continue f() ); }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return continue f() || a; }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return a || b || c || continue f() || d; }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return a && b && c && continue f() && d; }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return a && b || c && continue f() ? d : e; }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return a ? b : c && continue f() && d || e; }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return continue foo() instanceof bar ; }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return bar instanceof continue foo() ; }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return continue foo() in bar ; }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return bar in continue foo() ; }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ function* G() { yield continue foo(); } }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ (1, 2, 3, continue f() ) => {} }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ (... continue f()) => {} }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ (a, b, c, ... continue f() ) => {} }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return a <= continue f(); }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return b > continue f(); }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return a << continue f(); }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return b >> continue f(); }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return c >>> continue f(); }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return continue f() = a ; }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return a = continue f() ; }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return a += continue f(); }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return a ** continue f() ; }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return delete continue foo() ; }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ typeof continue foo() ; }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return ~ continue foo() ; }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return void continue foo() ; }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return !continue foo() ; }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return -continue foo() ; }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return +continue foo() ; }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return ++ continue f( ) ; }`,
|
|
err: ` ^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return continue f() ++; }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return continue f() --; }`,
|
|
err: ` ^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ return (continue foo()) () ; }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ for (var i = continue foo(); i < 10; i++) bar(); }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ for (var i = 0; i < continue foo(); i++) bar(); }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ for (var i = 0; i < 10; continue foo()) bar(); }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ if (continue foo()) bar(); }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ while (continue foo()) bar(); }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ do { smth; } while (continue foo()) ; }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ throw continue foo() ; }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ switch (continue foo()) { case 1: break; } ; }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ let x = continue foo() }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ const c = continue foo() }`,
|
|
err: ` ^^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `class A {}; class B extends A { constructor() { return continue foo () ; } }`,
|
|
err: ` ^^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `class A extends continue f () {}; }`,
|
|
err: ` ^^^^^^^^^^^^^`,
|
|
},
|
|
],
|
|
},
|
|
{ msg: "Tail call expression in try block",
|
|
tests: [
|
|
{ src: `()=>{ try { return continue f ( ) ; } catch(e) {} }`,
|
|
err: ` ^^^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ try { try { smth; } catch(e) { return continue f( ) ; } }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ try { try { smth; } catch(e) { return continue f( ) ; } } finally { bla; } }`,
|
|
err: ` ^^^^^^^^^^^^^^`,
|
|
},
|
|
],
|
|
},
|
|
{ msg: "Tail call expression in catch block when finally block is also present",
|
|
tests: [
|
|
{ src: `()=>{ try { smth; } catch(e) { return continue f ( ) ; } finally { blah; } }`,
|
|
err: ` ^^^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ try { smth; } catch(e) { try { smth; } catch (e) { return continue f ( ) ; } } finally { blah; } }`,
|
|
err: ` ^^^^^^^^^^^^^^^^`,
|
|
},
|
|
],
|
|
},
|
|
{ msg: "Tail call expression in for-in/of body",
|
|
tests: [
|
|
{ src: `()=>{ for (var v in {a:0}) { return continue foo () ; } }`,
|
|
err: ` ^^^^^^^^^^^^^^^^`,
|
|
},
|
|
{ src: `()=>{ for (var v of [1, 2, 3]) { return continue foo () ; } }`,
|
|
err: ` ^^^^^^^^^^^^^^^^`,
|
|
},
|
|
],
|
|
},
|
|
{ msg: "Undefined label 'foo'",
|
|
tests: [
|
|
{ src: `()=>{ continue foo () ; }`,
|
|
err: ` ^^^`,
|
|
},
|
|
],
|
|
},
|
|
];
|
|
|
|
|
|
// Should parse successfully.
|
|
var NoErrorTests = [
|
|
`()=>{ return continue a.b.c.foo () ; }`,
|
|
`()=>{ return continue a().b.c().d.foo () ; }`,
|
|
`()=>{ return continue foo (1)(2)(3, 4) ; }`,
|
|
`()=>{ return ( continue b() ) ; }`,
|
|
"()=>{ return continue bar`ab cd ef` ; }",
|
|
"()=>{ return continue bar`ab ${cd} ef` ; }",
|
|
`()=>{ return a || continue f() ; }`,
|
|
`()=>{ return a && continue f() ; }`,
|
|
`()=>{ return a , continue f() ; }`,
|
|
`()=>{ function* G() { return continue foo(); } }`,
|
|
`()=>{ class A { foo() { return continue super.f() ; } } }`,
|
|
`()=>{ function B() { return continue new.target() ; } }`,
|
|
`()=>{ return continue do { x ? foo() : bar() ; }() }`,
|
|
`()=>{ return continue (do { x ? foo() : bar() ; })() }`,
|
|
`()=>{ return do { 1, continue foo() } }`,
|
|
`()=>{ return do { x ? continue foo() : y } }`,
|
|
`()=>{ return a || (b && continue c()); }`,
|
|
`()=>{ return a && (b || continue c()); }`,
|
|
`()=>{ return a || (b ? c : continue d()); }`,
|
|
`()=>{ return 1, 2, 3, a || (b ? c : continue d()); }`,
|
|
`()=> continue (foo ()) ;`,
|
|
`()=> a || continue foo () ;`,
|
|
`()=> a && continue foo () ;`,
|
|
`()=> a ? continue foo () : b;`,
|
|
];
|
|
|
|
|
|
(function() {
|
|
for (var test_set of SyntaxErrorTests) {
|
|
var expected_message = "SyntaxError: " + test_set.msg;
|
|
for (var test of test_set.tests) {
|
|
var passed = true;
|
|
var e = null;
|
|
try {
|
|
eval(test.src);
|
|
} catch (ee) {
|
|
e = ee;
|
|
}
|
|
print("=======================================");
|
|
print("Expected | " + expected_message);
|
|
print("Source | " + test.src);
|
|
print(" | " + test.err);
|
|
|
|
if (e === null) {
|
|
print("FAILED");
|
|
throw new Error("SyntaxError was not thrown");
|
|
}
|
|
|
|
var details = %GetExceptionDetails(e);
|
|
if (details.start_pos == undefined ||
|
|
details.end_pos == undefined) {
|
|
throw new Error("Bad message object returned");
|
|
}
|
|
var underline = " ".repeat(details.start_pos) +
|
|
"^".repeat(details.end_pos - details.start_pos);
|
|
var passed = expected_message === e.toString() &&
|
|
test.err === underline;
|
|
|
|
if (passed) {
|
|
print("PASSED");
|
|
print();
|
|
} else {
|
|
print("---------------------------------------");
|
|
print("Actual | " + e);
|
|
print("Source | " + test.src);
|
|
print(" | " + underline);
|
|
print("FAILED");
|
|
throw new Error("Test failed");
|
|
}
|
|
}
|
|
}
|
|
})();
|
|
|
|
|
|
(function() {
|
|
for (var src of NoErrorTests) {
|
|
print("=======================================");
|
|
print("Source | " + src);
|
|
src = `"use strict"; ` + src;
|
|
Realm.eval(0, src);
|
|
print("PASSED");
|
|
print();
|
|
}
|
|
})();
|