graphql-language-service-server/esm/parsers/svelte.js

Server process backing the GraphQL Language Service

import { babelParser } from './babel';
import { svelte2tsx } from 'svelte2tsx';
import { SourceMapConsumer } from 'source-map-js';
import { Position, Range } from 'graphql-language-service';
export const svelteParser = (text, uri, logger) => {
    const svelteResult = svelte2tsx(text, {
        filename: uri,
    });
    const consumer = new SourceMapConsumer({
        ...svelteResult.map,
        version: String(svelteResult.map.version),
    });
    const rangeMapper = range => {
        const start = consumer.originalPositionFor({
            line: range.start.line,
            column: range.start.character,
        });
        const end = consumer.originalPositionFor({
            line: range.end.line,
            column: range.end.character,
        });
        return new Range(new Position(start.line, start.column), new Position(end.line, end.column));
    };
    try {
        return {
            asts: [babelParser(svelteResult.code, ['typescript'])],
            rangeMapper,
        };
    }
    catch (error) {
        logger.info(`Could not parse the Svelte file at ${uri} to extract the graphql tags:`);
        logger.info(String(error));
        return null;
    }
};
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