Files F95403954

import-builder.js
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Created: Sun, Dec 15, 10:54

import-builder.js
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	"use strict";

	Object.defineProperty(exports, "__esModule", {
	value: true
	});
	exports.default = void 0;

	var _assert = _interopRequireDefault(require("assert"));

	var t = _interopRequireWildcard(require("@babel/types"));

	function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }

	function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null \|\| typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get \|\| desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

	class ImportBuilder {
	constructor(importedSource, scope, hub) {
	this._statements = [];
	this._resultName = null;
	this._scope = null;
	this._hub = null;
	this._scope = scope;
	this._hub = hub;
	this._importedSource = importedSource;
	}

	done() {
	return {
	statements: this._statements,
	resultName: this._resultName
	};
	}

	import() {
	this._statements.push(t.importDeclaration([], t.stringLiteral(this._importedSource)));

	return this;
	}

	require() {
	this._statements.push(t.expressionStatement(t.callExpression(t.identifier("require"), [t.stringLiteral(this._importedSource)])));

	return this;
	}

	namespace(name = "namespace") {
	name = this._scope.generateUidIdentifier(name);
	const statement = this._statements[this._statements.length - 1];
	(0, _assert.default)(statement.type === "ImportDeclaration");
	(0, _assert.default)(statement.specifiers.length === 0);
	statement.specifiers = [t.importNamespaceSpecifier(name)];
	this._resultName = t.cloneNode(name);
	return this;
	}

	default(name) {
	name = this._scope.generateUidIdentifier(name);
	const statement = this._statements[this._statements.length - 1];
	(0, _assert.default)(statement.type === "ImportDeclaration");
	(0, _assert.default)(statement.specifiers.length === 0);
	statement.specifiers = [t.importDefaultSpecifier(name)];
	this._resultName = t.cloneNode(name);
	return this;
	}

	named(name, importName) {
	if (importName === "default") return this.default(name);
	name = this._scope.generateUidIdentifier(name);
	const statement = this._statements[this._statements.length - 1];
	(0, _assert.default)(statement.type === "ImportDeclaration");
	(0, _assert.default)(statement.specifiers.length === 0);
	statement.specifiers = [t.importSpecifier(name, t.identifier(importName))];
	this._resultName = t.cloneNode(name);
	return this;
	}

	var(name) {
	name = this._scope.generateUidIdentifier(name);
	let statement = this._statements[this._statements.length - 1];

	if (statement.type !== "ExpressionStatement") {
	(0, _assert.default)(this._resultName);
	statement = t.expressionStatement(this._resultName);

	this._statements.push(statement);
	}

	this._statements[this._statements.length - 1] = t.variableDeclaration("var", [t.variableDeclarator(name, statement.expression)]);
	this._resultName = t.cloneNode(name);
	return this;
	}

	defaultInterop() {
	return this._interop(this._hub.addHelper("interopRequireDefault"));
	}

	wildcardInterop() {
	return this._interop(this._hub.addHelper("interopRequireWildcard"));
	}

	_interop(callee) {
	const statement = this._statements[this._statements.length - 1];

	if (statement.type === "ExpressionStatement") {
	statement.expression = t.callExpression(callee, [statement.expression]);
	} else if (statement.type === "VariableDeclaration") {
	(0, _assert.default)(statement.declarations.length === 1);
	statement.declarations[0].init = t.callExpression(callee, [statement.declarations[0].init]);
	} else {
	_assert.default.fail("Unexpected type.");
	}

	return this;
	}

	prop(name) {
	const statement = this._statements[this._statements.length - 1];

	if (statement.type === "ExpressionStatement") {
	statement.expression = t.memberExpression(statement.expression, t.identifier(name));
	} else if (statement.type === "VariableDeclaration") {
	(0, _assert.default)(statement.declarations.length === 1);
	statement.declarations[0].init = t.memberExpression(statement.declarations[0].init, t.identifier(name));
	} else {
	_assert.default.fail("Unexpected type:" + statement.type);
	}

	return this;
	}

	read(name) {
	this._resultName = t.memberExpression(this._resultName, t.identifier(name));
	}

	}

	exports.default = ImportBuilder;

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