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parttimejob/node_modules/@babel/helper-wrap-function/lib/index.js

122 lines
3.5 KiB

"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
} = _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) {
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, 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$arrowFunctionTo : path;
}
node = path.node;
} else {
node = path.node;
}
const isDeclaration = isFunctionDeclaration(node);
let built = node;
if (!isCallExpression(node)) {
functionId = node.id;
node.id = null;
node.type = "FunctionExpression";
built = callExpression(callId, [node]);
}
const params = [];
for (const param of nodeParams) {
if (isAssignmentPattern(param) || isRestElement(param)) {
break;
}
params.push(path.scope.generateUidIdentifier("x"));
}
const wrapperArgs = {
NAME: functionId || null,
REF: path.scope.generateUidIdentifier(hadName ? functionId.name : "ref"),
FUNCTION: built,
PARAMS: params
};
if (isDeclaration) {
const container = buildDeclarationWrapper(wrapperArgs);
path.replaceWith(container[0]);
path.insertAfter(container[1]);
} else {
let container;
if (hadName) {
container = buildNamedExpressionWrapper(wrapperArgs);
} else {
container = buildAnonymousExpressionWrapper(wrapperArgs);
}
if (functionId || !ignoreFunctionLength && params.length) {
path.replaceWith(container);
} else {
path.replaceWith(built);
}
}
}
function wrapFunction(path, callId, noNewArrows = true, ignoreFunctionLength = false) {
if (path.isMethod()) {
classOrObjectMethod(path, callId);
} else {
const hadName = "id" in path.node && !!path.node.id;
{
var _path, _path$ensureFunctionN;
(_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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