@typescript-eslint/typescript-estree/dist/createParserServices.js

A parser that converts TypeScript source code into an ESTree compatible form

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.createParserServices = createParserServices;
function createParserServices(astMaps, program) {
    if (!program) {
        return {
            emitDecoratorMetadata: undefined,
            experimentalDecorators: undefined,
            isolatedDeclarations: undefined,
            program,
            // we always return the node maps because
            // (a) they don't require type info and
            // (b) they can be useful when using some of TS's internal non-type-aware AST utils
            ...astMaps,
        };
    }
    const checker = program.getTypeChecker();
    const compilerOptions = program.getCompilerOptions();
    return {
        program,
        // not set in the config is the same as off
        emitDecoratorMetadata: compilerOptions.emitDecoratorMetadata ?? false,
        experimentalDecorators: compilerOptions.experimentalDecorators ?? false,
        isolatedDeclarations: compilerOptions.isolatedDeclarations ?? false,
        ...astMaps,
        getSymbolAtLocation: node => checker.getSymbolAtLocation(astMaps.esTreeNodeToTSNodeMap.get(node)),
        getTypeAtLocation: node => checker.getTypeAtLocation(astMaps.esTreeNodeToTSNodeMap.get(node)),
    };
}