50 lines
1.3 KiB
JavaScript
50 lines
1.3 KiB
JavaScript
import normalizeAst from "./normalize-ast";
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import estraverse from "estraverse";
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import codeFrame from "./code-frame";
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import acorn from "acorn-babel";
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module.exports = function (opts, code, callback) {
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try {
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var comments = [];
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var tokens = [];
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var ast = acorn.parse(code, {
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allowImportExportEverywhere: opts.allowImportExportEverywhere,
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allowReturnOutsideFunction: !opts._anal,
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ecmaVersion: opts.experimental ? 7 : 6,
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playground: opts.playground,
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strictMode: opts.strictMode,
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onComment: comments,
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locations: true,
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onToken: tokens,
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ranges: true
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});
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estraverse.attachComments(ast, comments, tokens);
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ast = normalizeAst(ast, comments, tokens);
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if (callback) {
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return callback(ast);
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} else {
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return ast;
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}
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} catch (err) {
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if (!err._babel) {
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err._babel = true;
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var message = opts.filename + ": " + err.message;
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var loc = err.loc;
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if (loc) {
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var frame = codeFrame(code, loc.line, loc.column + 1);
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message += frame;
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}
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if (err.stack) err.stack = err.stack.replace(err.message, message);
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err.message = message;
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}
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throw err;
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}
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};
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