• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1// Copyright 2013 the V8 project authors. All rights reserved.
2// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
3//
4// Redistribution and use in source and binary forms, with or without
5// modification, are permitted provided that the following conditions
6// are met:
7// 1.  Redistributions of source code must retain the above copyright
8//     notice, this list of conditions and the following disclaimer.
9// 2.  Redistributions in binary form must reproduce the above copyright
10//     notice, this list of conditions and the following disclaimer in the
11//     documentation and/or other materials provided with the distribution.
12//
13// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
14// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
17// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23
24description(
25"This test checks that the following expressions or statements are valid ECMASCRIPT code or should throw parse error"
26);
27
28function runTest(_a, errorType)
29{
30    var success;
31    if (typeof _a != "string")
32        testFailed("runTest expects string argument: " + _a);
33    try {
34        eval(_a);
35        success = true;
36    } catch (e) {
37        success = !(e instanceof SyntaxError);
38    }
39    if ((!!errorType) == !success) {
40        if (errorType)
41            testPassed('Invalid: "' + _a + '"');
42        else
43            testPassed('Valid:   "' + _a + '"');
44    } else {
45        if (errorType)
46            testFailed('Invalid: "' + _a + '" should throw ' + errorType.name);
47        else
48            testFailed('Valid:   "' + _a + '" should NOT throw ');
49    }
50}
51
52function valid(_a)
53{
54    // Test both the grammar and the syntax checker
55    runTest(_a, false);
56    runTest("function f() { " + _a + " }", false);
57}
58
59function invalid(_a, _type)
60{
61    _type = _type || SyntaxError;
62    // Test both the grammar and the syntax checker
63    runTest(_a, true);
64    runTest("function f() { " + _a + " }", true);
65}
66
67// known issue:
68//   some statements requires statement as argument, and
69//   it seems the End-Of-File terminator is converted to semicolon
70//      "a:[EOF]" is not parse error, while "{ a: }" is parse error
71//      "if (a)[EOF]" is not parse error, while "{ if (a) }" is parse error
72// known issues of bison parser:
73//   accepts: 'function f() { return 6 + }' (only inside a function declaration)
74//   some comma expressions: see reparsing-semicolon-insertion.js
75
76debug  ("Unary operators and member access");
77
78valid  ("");
79invalid("(a");
80invalid("a[5");
81invalid("a[5 + 6");
82invalid("a.");
83invalid("()");
84invalid("a.'l'");
85valid  ("a: +~!new a");
86invalid("new -a");
87valid  ("new (-1)")
88valid  ("a: b: c: new f(x++)++")
89valid  ("(a)++");
90valid  ("(1--).x");
91invalid("a-- ++");
92invalid("(a:) --b");
93valid  ("++ -- ++ a");
94valid  ("++ new new a ++");
95valid  ("delete void 0");
96invalid("delete the void");
97invalid("(a++");
98valid  ("++a--");
99valid  ("++((a))--");
100valid  ("(a.x++)++");
101invalid("1: null");
102invalid("+-!~");
103invalid("+-!~((");
104invalid("a)");
105invalid("a]");
106invalid(".l");
107invalid("1.l");
108valid  ("1 .l");
109
110debug  ("Binary and conditional operators");
111
112valid  ("a + + typeof this");
113invalid("a + * b");
114invalid("a ? b");
115invalid("a ? b :");
116invalid("%a");
117invalid("a-");
118valid  ("a = b ? b = c : d = e");
119valid  ("s: a[1].l ? b.l['s'] ? c++ : d : true");
120valid  ("a ? b + 1 ? c + 3 * d.l : d[5][6] : e");
121valid  ("a in b instanceof delete -c");
122invalid("a in instanceof b.l");
123valid  ("- - true % 5");
124invalid("- false = 3");
125valid  ("a: b: c: (1 + null) = 3");
126valid  ("a[2] = b.l += c /= 4 * 7 ^ !6");
127invalid("a + typeof b += c in d");
128invalid("typeof a &= typeof b");
129valid  ("a: ((typeof (a))) >>>= a || b.l && c");
130valid  ("a: b: c[a /= f[a %= b]].l[c[x] = 7] -= a ? b <<= f : g");
131valid  ("-void+x['y'].l == x.l != 5 - f[7]");
132
133debug  ("Function calls (and new with arguments)");
134
135valid  ("a()()()");
136valid  ("s: l: a[2](4 == 6, 5 = 6)(f[4], 6)");
137valid  ("s: eval(a.apply(), b.call(c[5] - f[7]))");
138invalid("a(");
139invalid("a(5");
140invalid("a(5,");
141invalid("a(5,)");
142invalid("a(5,6");
143valid  ("a(b[7], c <d> e.l, new a() > b)");
144invalid("a(b[5)");
145invalid("a(b.)");
146valid  ("~new new a(1)(i++)(c[l])");
147invalid("a(*a)");
148valid  ("((((a))((b)()).l))()");
149valid  ("(a)[b + (c) / (d())].l--");
150valid  ("new (5)");
151invalid("new a(5");
152valid  ("new (f + 5)(6, (g)() - 'l'() - true(false))");
153invalid("a(.length)");
154
155debug  ("function declaration and expression");
156
157valid  ("function f() {}");
158valid  ("function f(a,b) {}");
159invalid("function () {}");
160invalid("function f(a b) {}");
161invalid("function f(a,) {}");
162invalid("function f(a,");
163invalid("function f(a, 1) {}");
164valid  ("function g(arguments, eval) {}");
165valid  ("function f() {} + function g() {}");
166invalid("(function a{})");
167invalid("(function this(){})");
168valid  ("(delete new function f(){} + function(a,b){}(5)(6))");
169valid  ("6 - function (m) { function g() {} }");
170invalid("function l() {");
171invalid("function l++(){}");
172
173debug  ("Array and object literal, comma operator");
174
175// Note these are tested elsewhere, no need to repeat those tests here
176valid  ("[] in [5,6] * [,5,] / [,,5,,] || [a,] && new [,b] % [,,]");
177invalid("[5,");
178invalid("[,");
179invalid("(a,)");
180valid  ("1 + {get get(){}, set set(a){}, get1:4, set1:get-set, }");
181invalid("1 + {a");
182invalid("1 + {a:");
183invalid("1 + {get l(");
184invalid(",a");
185valid  ("(4,(5,a(3,4))),f[4,a-6]");
186invalid("(,f)");
187invalid("a,,b");
188invalid("a ? b, c : d");
189
190debug  ("simple statements");
191
192valid  ("{ }");
193invalid("{ { }");
194valid  ("{ ; ; ; }");
195valid  ("a: { ; }");
196invalid("{ a: }");
197valid  ("{} f; { 6 + f() }");
198valid  ("{ a[5],6; {} ++b-new (-5)() } c().l++");
199valid  ("{ l1: l2: l3: { this } a = 32 ; { i++ ; { { { } } ++i } } }");
200valid  ("if (a) ;");
201invalid("{ if (a) }");
202invalid("if a {}");
203invalid("if (a");
204invalid("if (a { }");
205valid  ("x: s: if (a) ; else b");
206invalid("else {}");
207valid  ("if (a) if (b) y; else {} else ;");
208invalid("if (a) {} else x; else");
209invalid("if (a) { else }");
210valid  ("if (a.l + new b()) 4 + 5 - f()");
211valid  ("if (a) with (x) ; else with (y) ;");
212invalid("with a.b { }");
213valid  ("while (a() - new b) ;");
214invalid("while a {}");
215valid  ("do ; while(0) i++"); // Is this REALLY valid? (Firefox also accepts this)
216valid  ("do if (a) x; else y; while(z)");
217invalid("do g; while 4");
218invalid("do g; while ((4)");
219valid  ("{ { do do do ; while(0) while(0) while(0) } }");
220valid  ("do while (0) if (a) {} else y; while(0)");
221valid  ("if (a) while (b) if (c) with(d) {} else e; else f");
222invalid("break ; break your_limits ; continue ; continue living ; debugger");
223invalid("debugger X");
224invalid("break 0.2");
225invalid("continue a++");
226invalid("continue (my_friend)");
227valid  ("while (1) break");
228valid  ("do if (a) with (b) continue; else debugger; while (false)");
229invalid("do if (a) while (false) else debugger");
230invalid("while if (a) ;");
231valid  ("if (a) function f() {} else function g() {}");
232valid  ("if (a()) while(0) function f() {} else function g() {}");
233invalid("if (a()) function f() { else function g() }");
234invalid("if (a) if (b) ; else function f {}");
235invalid("if (a) if (b) ; else function (){}");
236valid  ("throw a");
237valid  ("throw a + b in void c");
238invalid("throw");
239
240debug  ("var and const statements");
241
242valid  ("var a, b = null");
243valid  ("const a = 5, b, c");
244invalid("var");
245invalid("var = 7");
246invalid("var c (6)");
247valid  ("if (a) var a,b; else const b, c");
248invalid("var 5 = 6");
249valid  ("while (0) var a, b, c=6, d, e, f=5*6, g=f*h, h");
250invalid("var a = if (b) { c }");
251invalid("var a = var b");
252valid  ("const a = b += c, a, a, a = (b - f())");
253invalid("var a %= b | 5");
254invalid("var (a) = 5");
255invalid("var a = (4, b = 6");
256invalid("const 'l' = 3");
257invalid("var var = 3");
258valid  ("var varr = 3 in 1");
259valid  ("const a, a, a = void 7 - typeof 8, a = 8");
260valid  ("const x_x = 6 /= 7 ? e : f");
261invalid("var a = ?");
262invalid("const a = *7");
263invalid("var a = :)");
264valid  ("var a = a in b in c instanceof d");
265invalid("var a = b ? c, b");
266invalid("const a = b : c");
267
268debug  ("for statement");
269
270valid  ("for ( ; ; ) { break }");
271valid  ("for ( a ; ; ) { break }");
272valid  ("for ( ; a ; ) { break }");
273valid  ("for ( ; ; a ) { break }");
274valid  ("for ( a ; a ; ) break");
275valid  ("for ( a ; ; a ) break");
276valid  ("for ( ; a ; a ) break");
277invalid("for () { }");
278invalid("for ( a ) { }");
279invalid("for ( ; ) ;");
280invalid("for a ; b ; c { }");
281invalid("for (a ; { }");
282invalid("for ( a ; ) ;");
283invalid("for ( ; a ) break");
284valid  ("for (var a, b ; ; ) { break } ");
285valid  ("for (var a = b, b = a ; ; ) break");
286valid  ("for (var a = b, c, d, b = a ; x in b ; ) { break }");
287valid  ("for (var a = b, c, d ; ; 1 in a()) break");
288invalid("for ( ; var a ; ) break");
289invalid("for (const a; ; ) break");
290invalid("for ( %a ; ; ) { }");
291valid  ("for (a in b) break");
292valid  ("for (a() in b) break");
293valid  ("for (a().l[4] in b) break");
294valid  ("for (new a in b in c in d) break");
295valid  ("for (new new new a in b) break");
296invalid("for (delete new a() in b) break");
297invalid("for (a * a in b) break");
298valid  ("for ((a * a) in b) break");
299invalid("for (a++ in b) break");
300valid  ("for ((a++) in b) break");
301invalid("for (++a in b) break");
302valid  ("for ((++a) in b) break");
303invalid("for (a, b in c) break");
304invalid("for (a,b in c ;;) break");
305valid  ("for (a,(b in c) ;;) break");
306valid  ("for ((a, b) in c) break");
307invalid("for (a ? b : c in c) break");
308valid  ("for ((a ? b : c) in c) break");
309valid  ("for (var a in b in c) break");
310valid  ("for (var a = 5 += 6 in b) break");
311invalid("for (var a += 5 in b) break");
312invalid("for (var a = in b) break");
313invalid("for (var a, b in b) break");
314invalid("for (var a = -6, b in b) break");
315invalid("for (var a, b = 8 in b) break");
316valid  ("for (var a = (b in c) in d) break");
317invalid("for (var a = (b in c in d) break");
318invalid("for (var (a) in b) { }");
319valid  ("for (var a = 7, b = c < d >= d ; f()[6]++ ; --i()[1]++ ) {}");
320
321debug  ("try statement");
322
323invalid("try { break } catch(e) {}");
324valid  ("try {} finally { c++ }");
325valid  ("try { with (x) { } } catch(e) {} finally { if (a) ; }");
326invalid("try {}");
327invalid("catch(e) {}");
328invalid("finally {}");
329invalid("try a; catch(e) {}");
330invalid("try {} catch(e) a()");
331invalid("try {} finally a()");
332invalid("try {} catch(e)");
333invalid("try {} finally");
334invalid("try {} finally {} catch(e) {}");
335invalid("try {} catch (...) {}");
336invalid("try {} catch {}");
337valid  ("if (a) try {} finally {} else b;");
338valid  ("if (--a()) do with(1) try {} catch(ke) { f() ; g() } while (a in b) else {}");
339invalid("if (a) try {} else b; catch (e) { }");
340invalid("try { finally {}");
341
342debug  ("switch statement");
343
344valid  ("switch (a) {}");
345invalid("switch () {}");
346invalid("case 5:");
347invalid("default:");
348invalid("switch (a) b;");
349invalid("switch (a) case 3: b;");
350valid  ("switch (f()) { case 5 * f(): default: case '6' - 9: ++i }");
351invalid("switch (true) { default: case 6: default: }");
352invalid("switch (l) { f(); }");
353invalid("switch (l) { case 1: ; a: case 5: }");
354valid  ("switch (g() - h[5].l) { case 1 + 6: a: b: c: ++f }");
355invalid("switch (g) { case 1: a: }");
356invalid("switch (g) { case 1: a: default: }");
357invalid("switch g { case 1: l() }");
358invalid("switch (g) { case 1:");
359valid  ("switch (l) { case a = b ? c : d : }");
360valid  ("switch (sw) { case a ? b - 7[1] ? [c,,] : d = 6 : { } : }");
361invalid("switch (l) { case b ? c : }");
362valid  ("switch (l) { case 1: a: with(g) switch (g) { case 2: default: } default: }");
363invalid("switch (4 - ) { }");
364invalid("switch (l) { default case: 5; }");
365
366invalid("L: L: ;");
367invalid("L: L1: L: ;");
368invalid("L: L1: L2: L3: L4: L: ;");
369
370invalid("for(var a,b 'this shouldn\'t be allowed' false ; ) ;");
371invalid("for(var a,b '");
372
373valid("function __proto__(){}")
374valid("(function __proto__(){})")
375valid("'use strict'; function __proto__(){}")
376valid("'use strict'; (function __proto__(){})")
377
378valid("if (0) $foo; ")
379valid("if (0) _foo; ")
380valid("if (0) foo$; ")
381valid("if (0) foo_; ")
382valid("if (0) obj.$foo; ")
383valid("if (0) obj._foo; ")
384valid("if (0) obj.foo$; ")
385valid("if (0) obj.foo_; ")
386valid("if (0) obj.foo\\u03bb; ")
387valid("if (0) new a(b+c).d = 5");
388valid("if (0) new a(b+c) = 5");
389valid("([1 || 1].a = 1)");
390valid("({a: 1 || 1}.a = 1)");
391
392invalid("var a.b = c");
393invalid("var a.b;");
394
395try { eval("a.b.c = {};"); } catch(e1) { e=e1; shouldBe("e.line", "1") }
396foo = 'FAIL';
397bar = 'PASS';
398try {
399     eval("foo = 'PASS'; a.b.c = {}; bar  = 'FAIL';");
400} catch(e) {
401     shouldBe("foo", "'PASS'");
402     shouldBe("bar", "'PASS'");
403}
404