11efb976fa
BUG=v8:4999, v8:4915 LOG=N Review-Url: https://codereview.chromium.org/1964603002 Cr-Commit-Position: refs/heads/master@{#36126}
389 lines
14 KiB
JavaScript
389 lines
14 KiB
JavaScript
// Copyright 2016 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 --harmony-explicit-tailcalls
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// Flags: --harmony-do-expressions
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"use strict";
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var SyntaxErrorTests = [
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{ msg: "Unexpected expression inside tail call",
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tests: [
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{ src: `()=>{ return continue foo ; }`,
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err: ` ^^^`,
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},
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{ src: `()=>{ return continue 42 ; }`,
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err: ` ^^`,
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},
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{ src: `()=>{ return continue new foo () ; }`,
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err: ` ^^^^^^^^^^`,
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},
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{ src: `()=>{ loop: return continue loop ; }`,
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err: ` ^^^^`,
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},
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{ src: `class A { foo() { return continue super.x ; } }`,
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err: ` ^^^^^^^`,
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},
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{ src: `()=>{ return continue this ; }`,
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err: ` ^^^^`,
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},
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{ src: `()=>{ return continue class A {} ; }`,
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err: ` ^^^^^^^^^^`,
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},
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{ src: `()=>{ return continue class A extends B {} ; }`,
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err: ` ^^^^^^^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return continue function A() { } ; }`,
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err: ` ^^^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return continue { a: b, c: d} ; }`,
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err: ` ^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return continue function* Gen() { yield 1; } ; }`,
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err: ` ^^^^^^^^^^^^^^^^^^^^^^^^^^^^`,
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},
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{ src: `function A() { return continue new.target ; }`,
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err: ` ^^^^^^^^^^`,
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},
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{ src: `()=>{ return continue () ; }`,
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err: ` ^^`,
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},
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{ src: `()=>{ return continue ( 42 ) ; }`,
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err: ` ^^^^^^`,
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},
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{ src: "()=>{ return continue `123 ${foo} 34lk` ; }",
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err: ` ^^^^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return continue do { x ? foo() : bar() ; } }`,
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err: ` ^^^^^^^^^^^^^^^^^^^^^^^^^^`,
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},
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],
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},
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{ msg: "Tail call expression is not allowed here",
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tests: [
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{ src: `()=>{ return continue continue continue b() ; }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return continue ( continue b() ) ; }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return continue f() - a ; }`,
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err: ` ^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return b + continue f() ; }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return 1, 2, 3, continue f() , 4 ; }`,
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err: ` ^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ var x = continue f ( ) ; }`,
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err: ` ^^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return continue f () ? 1 : 2 ; }`,
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err: ` ^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return (1, 2, 3, continue f()), 4; }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return [1, 2, continue f() ] ; }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return [1, 2, ... continue f() ] ; }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return [1, 2, continue f(), 3 ] ; }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: "()=>{ return `123 ${a} ${ continue foo ( ) } 34lk` ; }",
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err: ` ^^^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return g( 1, 2, continue f() ); }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return continue f() || a; }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return a || b || c || continue f() || d; }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return a && b && c && continue f() && d; }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return a && b || c && continue f() ? d : e; }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return a ? b : c && continue f() && d || e; }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return continue foo() instanceof bar ; }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return bar instanceof continue foo() ; }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return continue foo() in bar ; }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return bar in continue foo() ; }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ function* G() { yield continue foo(); } }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ (1, 2, 3, continue f() ) => {} }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ (... continue f()) => {} }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ (a, b, c, ... continue f() ) => {} }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return a <= continue f(); }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return b > continue f(); }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return a << continue f(); }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return b >> continue f(); }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return c >>> continue f(); }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return continue f() = a ; }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return a = continue f() ; }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return a += continue f(); }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return a ** continue f() ; }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return delete continue foo() ; }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ typeof continue foo() ; }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return ~ continue foo() ; }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return void continue foo() ; }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return !continue foo() ; }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return -continue foo() ; }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return +continue foo() ; }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return ++ continue f( ) ; }`,
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err: ` ^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return continue f() ++; }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return continue f() --; }`,
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err: ` ^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return (continue foo()) () ; }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ for (var i = continue foo(); i < 10; i++) bar(); }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ for (var i = 0; i < continue foo(); i++) bar(); }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ for (var i = 0; i < 10; continue foo()) bar(); }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ if (continue foo()) bar(); }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ while (continue foo()) bar(); }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ do { smth; } while (continue foo()) ; }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ throw continue foo() ; }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ switch (continue foo()) { case 1: break; } ; }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ let x = continue foo() }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ const c = continue foo() }`,
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err: ` ^^^^^^^^^^^^^^^`,
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},
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{ src: `class A {}; class B extends A { constructor() { return continue foo () ; } }`,
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err: ` ^^^^^^^^^^^^^^^`,
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},
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{ src: `class A extends continue f () {}; }`,
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err: ` ^^^^^^^^^^^^^`,
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},
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],
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},
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{ msg: "Tail call expression in try block",
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tests: [
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{ src: `()=>{ try { return continue f ( ) ; } catch(e) {} }`,
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err: ` ^^^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ try { try { smth; } catch(e) { return continue f( ) ; } }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ try { try { smth; } catch(e) { return continue f( ) ; } } finally { bla; } }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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],
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},
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{ msg: "Tail call expression in catch block when finally block is also present",
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tests: [
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{ src: `()=>{ try { smth; } catch(e) { return continue f ( ) ; } finally { blah; } }`,
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err: ` ^^^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ try { smth; } catch(e) { try { smth; } catch (e) { return continue f ( ) ; } } finally { blah; } }`,
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err: ` ^^^^^^^^^^^^^^^^`,
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},
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],
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},
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{ msg: "Tail call expression in for-in/of body",
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tests: [
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{ src: `()=>{ for (var v in {a:0}) { return continue foo () ; } }`,
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err: ` ^^^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ for (var v of [1, 2, 3]) { return continue foo () ; } }`,
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err: ` ^^^^^^^^^^^^^^^^`,
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},
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],
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},
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{ msg: "Tail call of a direct eval is not allowed",
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tests: [
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{ src: `()=>{ return continue eval(" foo () " ) ; }`,
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err: ` ^^^^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return a || continue eval("", 1, 2) ; }`,
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err: ` ^^^^^^^^^^^^^^`,
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},
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{ src: `()=>{ return a, continue eval ( ) ; }`,
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err: ` ^^^^^^^^^`,
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},
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{ src: `()=> a, continue eval ( ) ; `,
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err: ` ^^^^^^^^^`,
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},
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{ src: `()=> a || continue eval (' ' ) ; `,
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err: ` ^^^^^^^^^^^^`,
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},
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],
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},
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{ msg: "Undefined label 'foo'",
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tests: [
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{ src: `()=>{ continue foo () ; }`,
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err: ` ^^^`,
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},
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],
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},
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];
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// Should parse successfully.
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var NoErrorTests = [
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`()=>{ return continue a.b.c.foo () ; }`,
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`()=>{ return continue a().b.c().d.foo () ; }`,
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`()=>{ return continue foo (1)(2)(3, 4) ; }`,
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`()=>{ return continue (0, eval)(); }`,
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`()=>{ return ( continue b() ) ; }`,
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"()=>{ return continue bar`ab cd ef` ; }",
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"()=>{ return continue bar`ab ${cd} ef` ; }",
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`()=>{ return a || continue f() ; }`,
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`()=>{ return a && continue f() ; }`,
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`()=>{ return a , continue f() ; }`,
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`()=>{ function* G() { return continue foo(); } }`,
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`()=>{ class A { foo() { return continue super.f() ; } } }`,
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`()=>{ function B() { return continue new.target() ; } }`,
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`()=>{ return continue do { x ? foo() : bar() ; }() }`,
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`()=>{ return continue (do { x ? foo() : bar() ; })() }`,
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`()=>{ return do { 1, continue foo() } }`,
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`()=>{ return do { x ? continue foo() : y } }`,
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`()=>{ return a || (b && continue c()); }`,
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`()=>{ return a && (b || continue c()); }`,
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`()=>{ return a || (b ? c : continue d()); }`,
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`()=>{ return 1, 2, 3, a || (b ? c : continue d()); }`,
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`()=> continue (foo ()) ;`,
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`()=> a || continue foo () ;`,
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`()=> a && continue foo () ;`,
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`()=> a ? continue foo () : b;`,
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];
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(function() {
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for (var test_set of SyntaxErrorTests) {
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var expected_message = "SyntaxError: " + test_set.msg;
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for (var test of test_set.tests) {
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var passed = true;
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var e = null;
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try {
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eval(test.src);
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} catch (ee) {
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e = ee;
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}
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print("=======================================");
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print("Expected | " + expected_message);
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print("Source | " + test.src);
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print(" | " + test.err);
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if (e === null) {
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print("FAILED");
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throw new Error("SyntaxError was not thrown");
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}
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var details = %GetExceptionDetails(e);
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if (details.start_pos == undefined ||
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details.end_pos == undefined) {
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throw new Error("Bad message object returned");
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}
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var underline = " ".repeat(details.start_pos) +
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"^".repeat(details.end_pos - details.start_pos);
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var passed = expected_message === e.toString() &&
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test.err === underline;
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if (passed) {
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print("PASSED");
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print();
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} else {
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print("---------------------------------------");
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print("Actual | " + e);
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print("Source | " + test.src);
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print(" | " + underline);
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print("FAILED");
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throw new Error("Test failed");
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}
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}
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}
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})();
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(function() {
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for (var src of NoErrorTests) {
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print("=======================================");
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print("Source | " + src);
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src = `"use strict"; ` + src;
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Realm.eval(0, src);
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print("PASSED");
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print();
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}
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})();
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