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
|
// |reftest| skip-if(!xulRuntime.shell)
function test() {
// Bug 632056: constant-folding
program([exprStmt(ident("f")),
ifStmt(lit(1),
blockStmt([funDecl(ident("f"), [], blockStmt([]))]),
null)]).assert(Reflect.parse("f; if (1) function f(){}"));
// declarations
assertDecl("var x = 1, y = 2, z = 3",
varDecl([{ id: ident("x"), init: lit(1) },
{ id: ident("y"), init: lit(2) },
{ id: ident("z"), init: lit(3) }]));
assertDecl("var x, y, z",
varDecl([{ id: ident("x"), init: null },
{ id: ident("y"), init: null },
{ id: ident("z"), init: null }]));
assertDecl("function foo() { }",
funDecl(ident("foo"), [], blockStmt([])));
assertDecl("function foo() { return 42 }",
funDecl(ident("foo"), [], blockStmt([returnStmt(lit(42))])));
assertDecl("function foo(...rest) { }",
funDecl(ident("foo"), [], blockStmt([]), [], ident("rest")));
assertDecl("function foo(a=4) { }", funDecl(ident("foo"), [ident("a")], blockStmt([]), [lit(4)]));
assertDecl("function foo(a, b=4) { }", funDecl(ident("foo"), [ident("a"), ident("b")], blockStmt([]), [null, lit(4)]));
assertDecl("function foo(a, b=4, ...rest) { }",
funDecl(ident("foo"), [ident("a"), ident("b")], blockStmt([]), [null, lit(4), null], ident("rest")));
assertDecl("function foo(a=(function () {})) { function a() {} }",
funDecl(ident("foo"), [ident("a")], blockStmt([funDecl(ident("a"), [], blockStmt([]))]),
[funExpr(null, [], blockStmt([]))]));
// Bug 1018628: default paremeter for destructuring
assertDecl("function f(a=1, [x,y]=[2,3]) { }",
funDecl(ident("f"),
[ident("a"), arrPatt([ident("x"), ident("y")])],
blockStmt([]),
[lit(1), arrExpr([lit(2), lit(3)])]));
// Bug 591437: rebound args have their defs turned into uses
assertDecl("function f(a) { function a() { } }",
funDecl(ident("f"), [ident("a")], blockStmt([funDecl(ident("a"), [], blockStmt([]))])));
assertDecl("function f(a,b,c) { function b() { } }",
funDecl(ident("f"), [ident("a"),ident("b"),ident("c")], blockStmt([funDecl(ident("b"), [], blockStmt([]))])));
assertDecl("function f(a,[x,y]) { function a() { } }",
funDecl(ident("f"),
[ident("a"), arrPatt([assignElem("x"), assignElem("y")])],
blockStmt([funDecl(ident("a"), [], blockStmt([]))])));
// Bug 591450: this test was crashing because of a bug in jsparse
assertDecl("function f(a,[x,y],b,[w,z],c) { function b() { } }",
funDecl(ident("f"),
[ident("a"), arrPatt([ident("x"), ident("y")]), ident("b"), arrPatt([ident("w"), ident("z")]), ident("c")],
blockStmt([funDecl(ident("b"), [], blockStmt([]))])));
// redeclarations (TOK_NAME nodes with lexdef)
assertStmt("function f() { function g() { } function g() { } }",
funDecl(ident("f"), [], blockStmt([funDecl(ident("g"), [], blockStmt([])),
funDecl(ident("g"), [], blockStmt([]))])));
assertStmt("function f() { function g() { } function g() { return 42 } }",
funDecl(ident("f"), [], blockStmt([funDecl(ident("g"), [], blockStmt([])),
funDecl(ident("g"), [], blockStmt([returnStmt(lit(42))]))])));
assertStmt("function f() { var x = 42; var x = 43; }",
funDecl(ident("f"), [], blockStmt([varDecl([{ id: ident("x"), init: lit(42) }]),
varDecl([{ id: ident("x"), init: lit(43) }])])));
assertDecl("var {x:y} = foo;", varDecl([{ id: objPatt([assignProp("x", ident("y"))]),
init: ident("foo") }]));
assertDecl("var {x} = foo;", varDecl([{ id: objPatt([assignProp("x")]),
init: ident("foo") }]));
// Bug 632030: redeclarations between var and funargs, var and function
assertStmt("function g(x) { var x }",
funDecl(ident("g"), [ident("x")], blockStmt([varDecl([{ id: ident("x"), init: null }])])));
assertProg("f.p = 1; var f; f.p; function f(){}",
[exprStmt(aExpr("=", dotExpr(ident("f"), ident("p")), lit(1))),
varDecl([{ id: ident("f"), init: null }]),
exprStmt(dotExpr(ident("f"), ident("p"))),
funDecl(ident("f"), [], blockStmt([]))]);
}
assertBlockStmt("{ function f(x) {} }",
blockStmt([funDecl(ident("f"), [ident("x")], blockStmt([]))]));
// Annex B semantics should not change parse tree.
assertBlockStmt("{ let f; { function f(x) {} } }",
blockStmt([letDecl([{ id: ident("f"), init: null }]),
blockStmt([funDecl(ident("f"), [ident("x")], blockStmt([]))])]));
runtest(test);
|
