pi-lens/dist/clients/dispatch/rules/async-unnecessary-wrapper.js

Real-time code feedback for pi — LSP, linters, formatters, type-checking, structural analysis & booboo

export const asyncUnnecessaryWrapperRule = {
    id: "async-unnecessary-wrapper",
    requires: ["file.functionSummaries"],
    appliesTo(ctx) {
        return /\.tsx?$/.test(ctx.filePath);
    },
    evaluate(ctx, store) {
        const fns = store.getFileFact(ctx.filePath, "file.functionSummaries") ?? [];
        const diagnostics = [];
        for (const f of fns) {
            if (!f.isAsync || !f.isPassThroughWrapper || f.hasAwait)
                continue;
            diagnostics.push({
                id: `async-unnecessary-wrapper:${ctx.filePath}:${f.line}`,
                tool: "fact-rules",
                rule: "async-unnecessary-wrapper",
                filePath: ctx.filePath,
                line: f.line,
                column: f.column,
                severity: "warning",
                semantic: "warning",
                message: `'${f.name}' is async but has no await and just forwards to '${f.passThroughTarget}' — the async keyword is unnecessary and wraps the return in an extra Promise`,
            });
        }
        return diagnostics;
    },
};