forked from babel/babel
/
index.js
160 lines (127 loc) 路 3.58 KB
/
index.js
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
import nameFunction from "@babel/helper-function-name";
import * as t from "@babel/types";
function toKind(node: Object) {
if (t.isClassMethod(node) || t.isObjectMethod(node)) {
if (node.kind === "get" || node.kind === "set") {
return node.kind;
}
}
return "value";
}
const has = Function.prototype.call.bind(Object.prototype.hasOwnProperty);
export function push(
mutatorMap: Object,
node: Object,
kind: string,
file,
scope?,
): Object {
const alias = t.toKeyAlias(node);
//
let map = {};
if (has(mutatorMap, alias)) map = mutatorMap[alias];
mutatorMap[alias] = map;
//
map._inherits = map._inherits || [];
map._inherits.push(node);
map._key = node.key;
if (node.computed) {
map._computed = true;
}
if (node.decorators) {
const decorators = (map.decorators =
map.decorators || t.arrayExpression([]));
decorators.elements.push(
...node.decorators.map(dec => dec.expression).reverse(),
);
}
if (map.value || map.initializer) {
throw file.buildCodeFrameError(node, "Key conflict with sibling node");
}
let key, value;
// save the key so we can possibly do function name inferences
if (
t.isObjectProperty(node) ||
t.isObjectMethod(node) ||
t.isClassMethod(node)
) {
key = t.toComputedKey(node, node.key);
}
if (t.isProperty(node)) {
value = node.value;
} else if (t.isObjectMethod(node) || t.isClassMethod(node)) {
value = t.functionExpression(
null,
node.params,
node.body,
node.generator,
node.async,
);
value.returnType = node.returnType;
}
const inheritedKind = toKind(node);
if (!kind || inheritedKind !== "value") {
kind = inheritedKind;
}
// infer function name
if (
scope &&
t.isStringLiteral(key) &&
(kind === "value" || kind === "initializer") &&
t.isFunctionExpression(value)
) {
value = nameFunction({ id: key, node: value, scope });
}
if (value) {
t.inheritsComments(value, node);
map[kind] = value;
}
return map;
}
export function hasComputed(mutatorMap: Object): boolean {
for (const key of Object.keys(mutatorMap)) {
if (mutatorMap[key]._computed) {
return true;
}
}
return false;
}
export function toComputedObjectFromClass(obj: Object): Object {
const objExpr = t.arrayExpression([]);
for (let i = 0; i < obj.properties.length; i++) {
const prop = obj.properties[i];
const val = prop.value;
val.properties.unshift(
t.objectProperty(t.identifier("key"), t.toComputedKey(prop)),
);
objExpr.elements.push(val);
}
return objExpr;
}
export function toClassObject(mutatorMap: Object): Object {
const objExpr = t.objectExpression([]);
Object.keys(mutatorMap).forEach(function (mutatorMapKey) {
const map = mutatorMap[mutatorMapKey];
const mapNode = t.objectExpression([]);
const propNode = t.objectProperty(map._key, mapNode, map._computed);
Object.keys(map).forEach(function (key) {
const node = map[key];
if (key[0] === "_") return;
const prop = t.objectProperty(t.identifier(key), node);
t.inheritsComments(prop, node);
t.removeComments(node);
mapNode.properties.push(prop);
});
objExpr.properties.push(propNode);
});
return objExpr;
}
export function toDefineObject(mutatorMap: Object): Object {
Object.keys(mutatorMap).forEach(function (key) {
const map = mutatorMap[key];
if (map.value) map.writable = t.booleanLiteral(true);
map.configurable = t.booleanLiteral(true);
map.enumerable = t.booleanLiteral(true);
});
return toClassObject(mutatorMap);
}