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
|
//// [collisionThisExpressionAndParameter.ts]
class Foo {
x() {
var _this = 10; // Local var. No this capture in x(), so no conflict.
function inner(_this: number) { // Error
return x => this; // New scope. So should inject new _this capture into function inner
}
}
y() {
var lamda = (_this: number) => { // Error
return x => this; // New scope. So should inject new _this capture
}
}
z(_this: number) { // Error
var lambda = () => {
return x => this; // New scope. So should inject new _this capture
}
}
x1() {
var _this = 10; // Local var. No this capture in x(), so no conflict.
function inner(_this: number) { // No Error
}
}
y1() {
var lamda = (_this: number) => { // No Error
}
}
z1(_this: number) { // No Error
var lambda = () => {
}
}
}
class Foo1 {
constructor(_this: number) { // Error
var x2 = {
doStuff: (callback) => () => {
return callback(this);
}
}
}
}
declare var console: {
log(msg: any);
}
function f1(_this: number) {
x => { console.log(this.x); };
}
declare class Foo2 {
constructor(_this: number); // no error - no code gen
z(_this: number); // no error - no code gen
}
declare function f2(_this: number); // no error
class Foo3 {
constructor(_this: string); // no code gen - no error
constructor(_this: number); // no code gen - no error
constructor(_this: any) { // Error
var x2 = {
doStuff: (callback) => () => {
return callback(this);
}
}
}
z(_this: string); // no code gen - no error
z(_this: number); // no code gen - no error
z(_this: any) { // Error
var lambda = () => {
return x => this; // New scope. So should inject new _this capture
}
}
}
declare var console: {
log(msg: any);
}
function f3(_this: number); // no code gen - no error
function f3(_this: string); // no code gen - no error
function f3(_this: any) {
x => { console.log(this.x); };
}
declare class Foo4 {
constructor(_this: string); // no code gen - no error
constructor(_this: number); // no code gen - no error
z(_this: string); // no code gen - no error
z(_this: number); // no code gen - no error
}
declare function f4(_this: number); // no code gen - no error
declare function f4(_this: string); // no code gen - no error
//// [collisionThisExpressionAndParameter.js]
var Foo = (function () {
function Foo() {
}
Foo.prototype.x = function () {
var _this = 10; // Local var. No this capture in x(), so no conflict.
function inner(_this) {
var _this = this;
return function (x) { return _this; }; // New scope. So should inject new _this capture into function inner
}
};
Foo.prototype.y = function () {
var _this = this;
var lamda = function (_this) {
return function (x) { return _this; }; // New scope. So should inject new _this capture
};
};
Foo.prototype.z = function (_this) {
var _this = this;
var lambda = function () {
return function (x) { return _this; }; // New scope. So should inject new _this capture
};
};
Foo.prototype.x1 = function () {
var _this = 10; // Local var. No this capture in x(), so no conflict.
function inner(_this) {
}
};
Foo.prototype.y1 = function () {
var lamda = function (_this) {
};
};
Foo.prototype.z1 = function (_this) {
var lambda = function () {
};
};
return Foo;
}());
var Foo1 = (function () {
function Foo1(_this) {
var _this = this;
var x2 = {
doStuff: function (callback) { return function () {
return callback(_this);
}; }
};
}
return Foo1;
}());
function f1(_this) {
var _this = this;
(function (x) { console.log(_this.x); });
}
var Foo3 = (function () {
function Foo3(_this) {
var _this = this;
var x2 = {
doStuff: function (callback) { return function () {
return callback(_this);
}; }
};
}
Foo3.prototype.z = function (_this) {
var _this = this;
var lambda = function () {
return function (x) { return _this; }; // New scope. So should inject new _this capture
};
};
return Foo3;
}());
function f3(_this) {
var _this = this;
(function (x) { console.log(_this.x); });
}
|
