summaryrefslogtreecommitdiffstats
path: root/js/src/jit-test/tests/class/class-static-01.js
blob: ee41def1fbaad2639e3ab7363ac2d67acd8681ed (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
// |jit-test| 
load(libdir + "asserts.js");

// Parse
class A {
  static { }
};

// Run
var ran = false;
class B {
  static {
    ran = true;
  }
};

assertEq(ran, true);

// Can access static assigned before.
var res;
class C {
  static x = 10;
  static {
    res = this.x;
  }
};

assertEq(res, 10);

// Multiple static blocks
class D {
  static { }
  static { }
};

class D1 {
  static { } static { }
};

// Blocks run in order.
class E {
  static {
    res = 10;
  }
  static {
    assertEq(res, 10);
    res = 14;
  }
}

assertEq(res, 14);


// Can use static to access private state.
let accessor;
class F {
  #x = 10
  static {
    accessor = (o) => o.#x;
  }
}

let f = new F;
assertEq(accessor(f), 10);

class G {
  static {
    this.a = 10;
  }
}
assertEq(G.a, 10);

// Can use the super-keyword to access a static method in super class.
class H {
  static a() { return 101; }
}

class I extends H {
  static {
    res = super.a();
  }
}

assertEq(res, 101);

// Can add a property to a class from within a static
class J {
  static {
    this.x = 12;
  }
}

assertEq(J.x, 12);


function assertThrowsSyntaxError(str) {
  assertThrowsInstanceOf(() => eval(str), SyntaxError);       // Direct Eval
  assertThrowsInstanceOf(() => (1, eval)(str), SyntaxError);  // Indirect Eval
  assertThrowsInstanceOf(() => Function(str), SyntaxError);   // Function
}

assertThrowsSyntaxError(`
class X {
  static {
    arguments;
  }
}
`)


assertThrowsSyntaxError(`
class X extends class {} {
  static {
    super(); // can't call super in a static block
  }
}
`)

assertThrowsSyntaxError(`
class X {
  static {
    return 10; // Can't return in a static block
  }
}
`)

assertThrowsSyntaxError(`
class X {
  static {
    await 10; // Can't await in a static block
  }
}
`)

// Can't await inside a static block, even if we're inside an async function.
//
// The error message here is not good `SyntaxError: await is a reserved identifier`,
// but can be fixed later. s
assertThrowsSyntaxError(`
async function f() {
  class X {
    static {
      await 10; // Can't await in a static block
    }
  }
}
`)


assertThrowsSyntaxError(`
class X {
  static {
    yield 10; // Can't yield in a static block
  }
}
`)


assertThrowsSyntaxError(`
function* gen() {
  class X {
    static {
      yield 10; // Can't yield in a static block, even inside a generator
    }
  }
}
`)

// Incomplete should throw a sensible error.
assertThrowsSyntaxError(`
class A { static { this.x
`)