71 lines
No EOL
2.4 KiB
JavaScript
71 lines
No EOL
2.4 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.program = exports.expression = exports.statement = exports.statements = exports.smart = void 0;
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var t = _interopRequireWildcard(require("@babel/types"));
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function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
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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; }
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function makeStatementFormatter(fn) {
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return {
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code: str => `/* @babel/template */;\n${str}`,
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validate: () => {},
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unwrap: ast => {
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return fn(ast.program.body.slice(1));
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}
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};
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}
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const smart = makeStatementFormatter(body => {
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if (body.length > 1) {
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return body;
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} else {
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return body[0];
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}
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});
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exports.smart = smart;
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const statements = makeStatementFormatter(body => body);
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exports.statements = statements;
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const statement = makeStatementFormatter(body => {
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if (body.length === 0) {
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throw new Error("Found nothing to return.");
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}
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if (body.length > 1) {
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throw new Error("Found multiple statements but wanted one");
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}
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return body[0];
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});
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exports.statement = statement;
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const expression = {
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code: str => `(\n${str}\n)`,
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validate: ast => {
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if (ast.program.body.length > 1) {
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throw new Error("Found multiple statements but wanted one");
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}
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if (expression.unwrap(ast).start === 0) {
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throw new Error("Parse result included parens.");
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}
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},
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unwrap: ({
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program
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}) => {
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const [stmt] = program.body;
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t.assertExpressionStatement(stmt);
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return stmt.expression;
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}
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};
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exports.expression = expression;
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const program = {
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code: str => str,
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validate: () => {},
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unwrap: ast => ast.program
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};
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exports.program = program; |