Function firedByEffect

src/ui-server/api/steps.ts:731–750

(fnId: string, at: { line?: number; column?: number }, of: string)

    Array<{ start: { line: number; column: number }; end: { line: number; column: number }; step: StepRecord }>
  >();
  const firedByEffect = (fnId: string, at: { line?: number; column?: number }, of: string): StepRecord | null => {
    if (at.line === undefined) return null;
    const spans = firedSpans.get(fnId);
    if (!spans) return null;
    const last = (n: string) => n.replace(/\([^()]*\)/g, '').split(/[.:]/).pop() ?? n;
    const want = last(of);
    const line = at.line;
    const column = at.column ?? 0;
    let best: (typeof spans)[number] | null = null;
    for (const s of spans) {
      if (line < s.start.line || line > s.end.line) continue;
      if (line === s.start.line && column < s.start.column) continue;
      if (line === s.end.line && column > s.end.column) continue;
      if (!s.step.effect?.apis.some((api) => last(api) === want)) continue;
      if (best === null || s.start.line > best.start.line || (s.start.line === best.start.line && s.start.column > best.start.column)) {
        best = s;
      }
    }
    return best?.step ?? null;
  };

  const stepFor = (node: Node, kind: WireStepKind, depth: number, extra: Partial<WireStep> = {}): StepRecord | null => {
    const existing = steps.get(node.id);