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e8f9afe | 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 | "use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = wrapFunction;
var _template = require("@babel/template");
var _t = require("@babel/types");
const {
blockStatement,
callExpression,
functionExpression,
isAssignmentPattern,
isFunctionDeclaration,
isRestElement,
returnStatement,
isCallExpression,
memberExpression,
identifier,
thisExpression,
isPattern
} = _t;
const buildAnonymousExpressionWrapper = _template.default.expression(`
(function () {
var REF = FUNCTION;
return function NAME(PARAMS) {
return REF.apply(this, arguments);
};
})()
`);
const buildNamedExpressionWrapper = _template.default.expression(`
(function () {
var REF = FUNCTION;
function NAME(PARAMS) {
return REF.apply(this, arguments);
}
return NAME;
})()
`);
const buildDeclarationWrapper = _template.default.statements(`
function NAME(PARAMS) { return REF.apply(this, arguments); }
function REF() {
REF = FUNCTION;
return REF.apply(this, arguments);
}
`);
function classOrObjectMethod(path, callId, ignoreFunctionLength) {
const node = path.node;
const body = node.body;
let params = [];
const shouldForwardParams = node.params.some(p => isPattern(p));
if (shouldForwardParams) {
params = node.params;
node.params = [];
if (!ignoreFunctionLength) {
for (const param of params) {
if (isAssignmentPattern(param) || isRestElement(param)) {
break;
}
node.params.push(path.scope.generateUidIdentifier("x"));
}
}
}
const container = functionExpression(null, params, blockStatement(body.body), true);
if (shouldForwardParams) {
body.body = [returnStatement(callExpression(memberExpression(callExpression(callId, [container]), identifier("apply")), [thisExpression(), identifier("arguments")]))];
path.get("body.body.0.argument.callee.object.arguments.0").unwrapFunctionEnvironment();
} else {
body.body = [returnStatement(callExpression(callExpression(callId, [container]), []))];
path.get("body.body.0.argument.callee.arguments.0").unwrapFunctionEnvironment();
}
node.async = false;
node.generator = false;
}
function plainFunction(inPath, callId, noNewArrows, ignoreFunctionLength, hadName) {
let path = inPath;
let node;
let functionId = null;
const nodeParams = inPath.node.params;
if (path.isArrowFunctionExpression()) {
var _path$arrowFunctionTo;
path = (_path$arrowFunctionTo = path.arrowFunctionToExpression({
noNewArrows
})) != null ? _path$arrowFunctionTo : path;
node = path.node;
} else {
node = path.node;
}
const isDeclaration = isFunctionDeclaration(node);
let built = node;
if (!isCallExpression(node)) {
functionId = node.id;
node.id = null;
node.type = "FunctionExpression";
built = callExpression(callId, [node]);
}
const params = [];
for (const param of nodeParams) {
if (isAssignmentPattern(param) || isRestElement(param)) {
break;
}
params.push(path.scope.generateUidIdentifier("x"));
}
const wrapperArgs = {
NAME: functionId || null,
REF: path.scope.generateUidIdentifier(hadName ? functionId.name : "ref"),
FUNCTION: built,
PARAMS: params
};
if (isDeclaration) {
const container = buildDeclarationWrapper(wrapperArgs);
path.replaceWith(container[0]);
path.insertAfter(container[1]);
} else {
let container;
if (hadName) {
container = buildNamedExpressionWrapper(wrapperArgs);
} else {
container = buildAnonymousExpressionWrapper(wrapperArgs);
}
if (functionId || !ignoreFunctionLength && params.length) {
path.replaceWith(container);
} else {
path.replaceWith(built);
}
}
}
function wrapFunction(path, callId, noNewArrows = true, ignoreFunctionLength = false) {
if (path.isMethod()) {
classOrObjectMethod(path, callId, ignoreFunctionLength);
} else {
var _path, _path$ensureFunctionN;
const hadName = "id" in path.node && !!path.node.id;
(_path$ensureFunctionN = (_path = path).ensureFunctionName) != null ? _path$ensureFunctionN : _path.ensureFunctionName = require("@babel/traverse").NodePath.prototype.ensureFunctionName;
path = path.ensureFunctionName(false);
plainFunction(path, callId, noNewArrows, ignoreFunctionLength, hadName);
}
}
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