angular-estree-parser/lib/angular-parser.js

A parser that converts Angular source code into an ESTree-compatible form

import { Lexer, Parser, } from '@angular/compiler';
import { sourceSpanToLocationInformation } from './utils.js';
const getCommentStart = (text) => 
// @ts-expect-error -- need to call private _commentStart
Parser.prototype._commentStart(text);
function extractComments(text, shouldExtractComment) {
    const commentStart = shouldExtractComment ? getCommentStart(text) : null;
    if (commentStart === null) {
        return { text, comments: [] };
    }
    const comment = {
        type: 'CommentLine',
        value: text.slice(commentStart + '//'.length),
        ...sourceSpanToLocationInformation({
            start: commentStart,
            end: text.length,
        }),
    };
    return {
        text: text.slice(0, commentStart),
        comments: [comment],
    };
}
function createAngularParseFunction(parse, shouldExtractComment = true) {
    return (originalText) => {
        const lexer = new Lexer();
        const parser = new Parser(lexer);
        const { text, comments } = extractComments(originalText, shouldExtractComment);
        const result = parse(text, parser);
        if (result.errors.length !== 0) {
            const [{ message }] = result.errors;
            throw new SyntaxError(message.replace(/^Parser Error: | at column \d+ in [^]*$/g, ''));
        }
        return { result, comments, text };
    };
}
export const parseBinding = createAngularParseFunction((text, parser) => parser.parseBinding(text, '', 0));
export const parseSimpleBinding = createAngularParseFunction((text, parser) => parser.parseSimpleBinding(text, '', 0));
export const parseAction = createAngularParseFunction((text, parser) => parser.parseAction(text, '', 0));
export const parseInterpolationExpression = createAngularParseFunction((text, parser) => parser.parseInterpolationExpression(text, '', 0));
export const parseTemplateBindings = createAngularParseFunction((text, parser) => parser.parseTemplateBindings('', text, '', 0, 0), 
/* shouldExtractComment */ false);