blob: ddb34bc3513867669bc40029f5064e3a8e19a384 (
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
|
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = splitExportDeclaration;
function t() {
const data = _interopRequireWildcard(require("@babel/types"));
t = function () {
return data;
};
return data;
}
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }
function splitExportDeclaration(exportDeclaration) {
if (!exportDeclaration.isExportDeclaration()) {
throw new Error("Only export declarations can be splitted.");
}
const isDefault = exportDeclaration.isExportDefaultDeclaration();
const declaration = exportDeclaration.get("declaration");
const isClassDeclaration = declaration.isClassDeclaration();
if (isDefault) {
const standaloneDeclaration = declaration.isFunctionDeclaration() || isClassDeclaration;
const scope = declaration.isScope() ? declaration.scope.parent : declaration.scope;
let id = declaration.node.id;
let needBindingRegistration = false;
if (!id) {
needBindingRegistration = true;
id = scope.generateUidIdentifier("default");
if (standaloneDeclaration || declaration.isFunctionExpression() || declaration.isClassExpression()) {
declaration.node.id = t().cloneNode(id);
}
}
const updatedDeclaration = standaloneDeclaration ? declaration : t().variableDeclaration("var", [t().variableDeclarator(t().cloneNode(id), declaration.node)]);
const updatedExportDeclaration = t().exportNamedDeclaration(null, [t().exportSpecifier(t().cloneNode(id), t().identifier("default"))]);
exportDeclaration.insertAfter(updatedExportDeclaration);
exportDeclaration.replaceWith(updatedDeclaration);
if (needBindingRegistration) {
scope.registerDeclaration(exportDeclaration);
}
return exportDeclaration;
}
if (exportDeclaration.get("specifiers").length > 0) {
throw new Error("It doesn't make sense to split exported specifiers.");
}
const bindingIdentifiers = declaration.getOuterBindingIdentifiers();
const specifiers = Object.keys(bindingIdentifiers).map(name => {
return t().exportSpecifier(t().identifier(name), t().identifier(name));
});
const aliasDeclar = t().exportNamedDeclaration(null, specifiers);
exportDeclaration.insertAfter(aliasDeclar);
exportDeclaration.replaceWith(declaration.node);
return exportDeclaration;
}
|
