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53 lines
1.2 KiB
53 lines
1.2 KiB
2 years ago
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const babel = require("./babel-core.cjs");
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const convert = require("../convert/index.cjs");
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const {
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getVisitorKeys,
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getTokLabels
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} = require("./ast-info.cjs");
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const extractParserOptionsPlugin = require("./extract-parser-options-plugin.cjs");
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const ref = {};
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let extractParserOptionsConfigItem;
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const MULTIPLE_OVERRIDES = /More than one plugin attempted to override parsing/;
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module.exports = function maybeParse(code, options) {
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if (!extractParserOptionsConfigItem) {
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extractParserOptionsConfigItem = babel.createConfigItem([extractParserOptionsPlugin, ref], {
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dirname: __dirname,
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type: "plugin"
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});
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}
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const {
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plugins
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} = options;
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options.plugins = plugins.concat(extractParserOptionsConfigItem);
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try {
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return {
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parserOptions: babel.parseSync(code, options),
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ast: null
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};
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} catch (err) {
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if (!MULTIPLE_OVERRIDES.test(err.message)) {
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throw err;
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}
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}
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options.plugins = plugins;
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let ast;
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try {
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ast = babel.parseSync(code, options);
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} catch (err) {
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throw convert.error(err);
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}
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return {
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ast: convert.ast(ast, code, getTokLabels(), getVisitorKeys()),
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parserOptions: null
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};
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};
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