angular-estree-parser/lib/source.js

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

import { fitSpans, getCharacterIndex, getCharacterLastIndex, sourceSpanToLocationInformation, } from './utils.js';
export class Source {
    text;
    constructor(text) {
        this.text = text;
    }
    getCharacterIndex(pattern, index) {
        return getCharacterIndex(this.text, pattern, index);
    }
    getCharacterLastIndex(pattern, index) {
        return getCharacterLastIndex(this.text, pattern, index);
    }
    transformSpan(span, { stripSpaces = false, hasParentParens = false } = {}) {
        if (!stripSpaces) {
            return sourceSpanToLocationInformation(span);
        }
        const { outerSpan, innerSpan, hasParens } = fitSpans(span, this.text, hasParentParens);
        const locationInformation = sourceSpanToLocationInformation(innerSpan);
        if (hasParens) {
            locationInformation.extra = {
                parenthesized: true,
                parenStart: outerSpan.start,
                parenEnd: outerSpan.end,
            };
        }
        return locationInformation;
    }
    createNode(properties, 
    // istanbul ignore next
    { stripSpaces = true, hasParentParens = false } = {}) {
        const { type, start, end } = properties;
        const node = {
            ...properties,
            ...this.transformSpan({ start, end }, {
                stripSpaces,
                hasParentParens,
            }),
        };
        switch (type) {
            case 'NumericLiteral':
            case 'StringLiteral': {
                const raw = this.text.slice(node.start, node.end);
                const { value } = node;
                node.extra = { ...node.extra, raw, rawValue: value };
                break;
            }
            case 'ObjectProperty': {
                const { shorthand } = node;
                if (shorthand) {
                    node.extra = { ...node.extra, shorthand };
                }
                break;
            }
        }
        return node;
    }
}
export default Source;