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• .. (вверх)
• [DIR] ..
• [FILE] langspec.json
• [FILE] logic.js
• [FILE] logic.js.map
• [FILE] sourcemap.js
• [FILE] sourcemap.js.map

Просмотр файла: sourcemap.js

import * as vlq from 'vlq';
export class SourceMap {
    constructor({ version, sources, names, mappings, }) {
        this.version = version;
        this.sources = sources;
        this.names = names;
        this.mappings = mappings;
        if (this.version !== 3)
            throw new Error(`Only version 3 is supported, got ${this.version}`);
        if (this.mappings === undefined)
            throw new Error('mapping undefined, cannot build source map without `mapping`');
        const pcList = this.mappings.split(';').map((m) => {
            const decoded = vlq.decode(m);
            if (decoded.length > 2)
                return decoded[2];
            return undefined;
        });
        this.pcToLine = {};
        this.lineToPc = {};
        let lastLine = 0;
        for (const [pc, lineDelta] of pcList.entries()) {
            // If the delta is not undefined, the lastLine should be updated with
            // lastLine + the delta
            if (lineDelta !== undefined) {
                lastLine += lineDelta;
            }
            if (!(lastLine in this.lineToPc))
                this.lineToPc[lastLine] = [];
            this.lineToPc[lastLine].push(pc);
            this.pcToLine[pc] = lastLine;
        }
    }
    getLineForPc(pc) {
        return this.pcToLine[pc];
    }
    getPcsForLine(line) {
        return this.lineToPc[line];
    }
}
//# sourceMappingURL=sourcemap.js.map

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