@eagleoutice/flowr-dev/r-bridge/parser.js

Static Dataflow Analyzer and Program Slicer for the R Programming Language

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseRequests = parseRequests;
/**
 * Takes an input program and parses it using the given parser.
 * @param _results - just a proxy for the pipeline, signifies that this function does not need prior knowledge of the pipeline
 * @param input    - the input to the parse step
 * @returns The parsed AST per request in the loading order obtained from the {@link FlowrAnalyzerFilesContext|files context} of the given {@link FlowrAnalyzerContext}.
 */
async function parseRequests(_results, input) {
    const ctx = input.context;
    const loadingOrder = ctx.files.loadingOrder.getLoadingOrder();
    /* in the future, we want to expose all cases */
    const translatedRequests = loadingOrder.map(r => input.context.files.resolveRequest(r));
    if (input.parser?.async) {
        /* sadly we cannot Promise.all with the Rshell as it has to process commands in order and is not thread safe */
        const files = [];
        for (const req of translatedRequests) {
            const parsed = await (input.parser).parse(req.r, ctx);
            files.push({
                parsed,
                filePath: req.path,
                '.parse-meta': typeof parsed === 'object' && 'rootNode' in parsed ? {
                    tokenCount: parsed.rootNode.descendantCount,
                } : undefined
            });
        }
        return { files };
    }
    else {
        const p = input.parser;
        return {
            files: translatedRequests.map(r => {
                const withPath = r.r;
                withPath.filePath = r.path;
                const parsed = p.parse(withPath, ctx);
                return {
                    parsed,
                    filePath: r.path,
                    '.parse-meta': typeof parsed === 'object' && 'rootNode' in parsed ? {
                        tokenCount: parsed.rootNode?.descendantCount ?? 0,
                    } : undefined
                };
            })
        };
    }
}
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