Tree-sitter queries help

README.md

Tree-sitter Query question

I'd like to reuse the capture from a first pattern to filter the second pattern.

The first sub-pattern extracts the name of an import, and the second sub-pattern is supposed to find the arguments of the calls to the second pattern, whichever nesting level.

You can test the query on https://tree-sitter.github.io/tree-sitter/playground if you find a solution.

Expected result

The funcName captures only match badRoute, rootRoute, asyncRoute.

Actual result

The funcName capture also match req and res on line 7, but it shouldn't.

query.scm

(
  (import_statement
    (import_clause
      (named_imports
        (import_specifier
          name: (identifier) @wrapperAtName)))
    source: (string (string_fragment) @libAtName))
  (#eq? @libAtName "@autometrics/autometrics")
)

(
  (call_expression
    function: (identifier) @wrapperAtCall
    arguments: (arguments (identifier) @funcName))
  (#eq? @wrapperAtCall @wrapperAtName)
)

test.ts

import express from "express";
import { autometrics } from "@autometrics/autometrics";

const badRouteMetrics = autometrics(badRoute); // Should match `badRoute` as funcName

app.get("/", autometrics(rootRoute)); // Should match `rootRoute` as funcName
app.get("/bad", (req, res) => badRouteMetrics(req, res)); // Should _not_ match anything
app.get("/async", autometrics(asyncRoute)); // Should match `asyncRoute` as funcName

import express from "express";
import { autometrics } from "@autometrics/autometrics";

const badRouteMetrics = autometrics(badRoute); // Should match badRoute as funcName

app.get("/", autometrics(rootRoute)); // Should match rootRoute as funcName
app.get("/bad", (req, res) => badRouteMetrics(req, res)); // Should not match anything
app.get("/async", autometrics(asyncRoute)); // Should match asyncRoute as funcName