eslint/babel-eslint-parser/src/index.js
import semver from "semver";
import {
version as babelCoreVersion,
parseSync as babelParse,
} from "@babel/core";
import packageJson from "../package.json";
import {
normalizeBabelParseConfig,
normalizeESLintConfig,
} from "./configuration";
import convert from "./convert";
import analyzeScope from "./analyze-scope";
import visitorKeys from "./visitor-keys";
let isRunningSupportedVersion;
function baseParse(code, options) {
if (typeof isRunningSupportedVersion !== "boolean") {
isRunningSupportedVersion = semver.satisfies(
babelCoreVersion,
packageJson.peerDependencies["@babel/core"],
);
}
if (!isRunningSupportedVersion) {
throw new Error(
`@babel/eslint-parser@${packageJson.version} does not support @babel/core@${babelCoreVersion}. Please upgrade to @babel/core@${packageJson.peerDependencies["@babel/core"]}`,
);
}
let ast;
try {
ast = babelParse(code, normalizeBabelParseConfig(options));
} catch (err) {
if (err instanceof SyntaxError) {
err.lineNumber = err.loc.line;
err.column = err.loc.column;
}
throw err;
}
convert(ast, code);
return ast;
}
export function parse(code, options = {}) {
return baseParse(code, normalizeESLintConfig(options));
}
export function parseForESLint(code, options = {}) {
const normalizedOptions = normalizeESLintConfig(options);
const ast = baseParse(code, normalizedOptions);
const scopeManager = analyzeScope(ast, normalizedOptions);
return { ast, scopeManager, visitorKeys };
}