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Issue 1773653002: [strong] Remove all remainders of strong mode (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Oversight Created 4 years, 9 months ago
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1 // Copyright 2015 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Flags: --strong-mode
6
7 "use strict";
8
9 function CheckSwitch() {
10 let jumpStatements = [
11 "break; ",
12 "continue; ",
13 "break foo; ",
14 "continue foo; ",
15 "return; ",
16 "throw new TypeError(); ",
17 "if(1) break; else continue; ",
18 "if(1) {1+1; {break;}} else continue; "
19 ]
20
21 let otherStatements = [
22 "null; ",
23 "1+1; ",
24 "{} ",
25 "for(;false;) {break;} ",
26 "for(;false;) {1+1; {throw new TypeError();}} ",
27 "(function(){return});",
28 "(function(){throw new TypeError();});",
29 "{break; 1+1;} ",
30 "if(1) break; ",
31 "if(1) break; else 1+1; ",
32 "if(1) 1+1; else break; ",
33 ]
34
35 let successContexts = [
36 ["switch(1) {case 1: ", "case 2: }"],
37 ["switch(1) {case 1: case 2: ", "default: }"],
38 ["switch(1) {case 1: case 2: ", "default: {}}"],
39 ["switch(1) {case 1: case 2: ", "default: 1+1}"],
40 ["switch(1) {case 1: break; case 2: ", "default: }"],
41 ["switch(1) {case 1: case 2: break; case 3: ", "case 4: default: }"],
42 ["switch(1) {case 1: if(1) break; else {", "} default: break;}"]
43 ]
44
45 let strongThrowContexts = [
46 ["switch(1) {case 1: 1+1; case 2: ", "}"],
47 ["switch(1) {case 1: bar: break foo; case 2: ", "}"],
48 ["switch(1) {case 1: bar:", " case 2: }"],
49 ["switch(1) {case 1: bar:{ ", "} case 2: }"],
50 ["switch(1) {case 1: bar:{ ", "} default: break;}"],
51 ["switch(1) {case 1: { bar:{ { ", "} } } default: break;}"],
52 ["switch(1) {case 1: { { { ", "} 1+1;} } default: break;}"],
53 ["switch(1) {case 1: if(1) {", "} default: break;}"],
54 ["switch(1) {case 1: bar:if(1) break; else {", "} default: break;}"]
55 ]
56
57 let sloppy_wrap = ["function f() { foo:for(;;) {", "}}"];
58 let strong_wrap = ["function f() { 'use strong'; foo:for(;;) {", "}}"];
59
60 for (let context of successContexts) {
61 let sloppy_prefix = sloppy_wrap[0] + context[0];
62 let sloppy_suffix = context[1] + sloppy_wrap[1];
63 let strong_prefix = strong_wrap[0] + context[0];
64 let strong_suffix = context[1] + strong_wrap[1];
65
66 for (let code of jumpStatements) {
67 assertDoesNotThrow(strong_wrap[0] + "switch(1) {case 1: " + code + "}}}");
68 assertDoesNotThrow(strong_prefix + code + strong_suffix);
69 assertDoesNotThrow(strong_prefix + "{ 1+1; " + code + "}" +
70 strong_suffix);
71 assertDoesNotThrow(strong_prefix + "{ 1+1; { 1+1; " + code + "}}" +
72 strong_suffix);
73 assertDoesNotThrow(strong_prefix + "if(1) " + code + "else break;" +
74 strong_suffix);
75 assertDoesNotThrow(strong_prefix + "if(1) " + code +
76 "else if (1) break; else " + code + strong_suffix);
77 }
78 for (let code of otherStatements) {
79 assertDoesNotThrow(sloppy_prefix + code + sloppy_suffix);
80 assertThrows(strong_prefix + code + strong_suffix, SyntaxError);
81 }
82 }
83
84 for (let context of strongThrowContexts) {
85 let sloppy_prefix = sloppy_wrap[0] + context[0];
86 let sloppy_suffix = context[1] + sloppy_wrap[1];
87 let strong_prefix = strong_wrap[0] + context[0];
88 let strong_suffix = context[1] + strong_wrap[1];
89
90 for (let code of jumpStatements.concat(otherStatements)) {
91 assertDoesNotThrow(sloppy_prefix + code + sloppy_suffix);
92 assertThrows(strong_prefix + code + strong_suffix, SyntaxError);
93 }
94 }
95
96 for (let code of otherStatements) {
97 assertDoesNotThrow("switch(1) {default: " + code + "}");
98 assertDoesNotThrow("switch(1) {case 1: " + code + "}");
99 assertDoesNotThrow("switch(1) {case 1: default: " + code + "}");
100 assertDoesNotThrow("switch(1) {case 1: break; default: " + code + "}");
101 assertDoesNotThrow("switch(1) {case 1: " + code + "break; default: }");
102 }
103 }
104
105 CheckSwitch();
106
107 assertDoesNotThrow("'use strong'; switch(1) {}");
108 assertDoesNotThrow("'use strong'; switch(1) {case 1:}");
109 assertDoesNotThrow("'use strong'; switch(1) {default:}");
110 assertDoesNotThrow("'use strong'; switch(1) {case 1: case 2: default:}");
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