Files

100 lines
2.7 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = wrapFunction;
var _helperFunctionName = require("@babel/helper-function-name");
var _template = require("@babel/template");
var _t = require("@babel/types");
const {
blockStatement,
callExpression,
functionExpression,
isAssignmentPattern,
isFunctionDeclaration,
isRestElement,
returnStatement,
isCallExpression,
cloneNode,
toExpression
} = _t;
const buildWrapper = _template.default.statement(`
function NAME(PARAMS) {
return (REF = REF || FUNCTION).apply(this, arguments);
}
`);
function classOrObjectMethod(path, callId) {
const node = path.node;
const body = node.body;
const container = functionExpression(null, [], blockStatement(body.body), true);
body.body = [returnStatement(callExpression(callExpression(callId, [container]), []))];
node.async = false;
node.generator = false;
path.get("body.body.0.argument.callee.arguments.0").unwrapFunctionEnvironment();
}
function plainFunction(inPath, callId, noNewArrows, ignoreFunctionLength) {
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 ref = path.scope.generateUidIdentifier(functionId ? functionId.name : "ref");
let wrapper = buildWrapper({
NAME: functionId,
REF: ref,
FUNCTION: built,
PARAMS: params
});
if (!isDeclaration) {
wrapper = toExpression(wrapper);
(0, _helperFunctionName.default)({
node: wrapper,
parent: path.parent,
scope: path.scope
});
}
if (isDeclaration || wrapper.id || !ignoreFunctionLength && params.length) {
path.replaceWith(wrapper);
path.parentPath.scope.push({
id: cloneNode(ref)
});
} else {
path.replaceWith(built);
}
}
function wrapFunction(path, callId, noNewArrows = true, ignoreFunctionLength = false) {
if (path.isMethod()) {
classOrObjectMethod(path, callId);
} else {
plainFunction(path, callId, noNewArrows, ignoreFunctionLength);
}
}
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