updateProfiler() — react Function Reference

Architecture documentation for the updateProfiler() function in ReactFiberBeginWork.js from the react codebase.

Function javascript BabelCompiler Validation calls 1 called by 1

Entity Profile

BabelCompiler→ Validation→ updateProfiler() — react Function Reference

Dependency Diagram

graph TD
  62d7e534_aaea_fb4d_6201_8841bd8d5f53["updateProfiler()"]
  0be70812_cc0c_b210_f84f_8e61dd5f831c["ReactFiberBeginWork.js"]
  62d7e534_aaea_fb4d_6201_8841bd8d5f53 -->|defined in| 0be70812_cc0c_b210_f84f_8e61dd5f831c
  235e1db1_02a4_912f_7d82_ea6636c850c0["beginWork()"]
  235e1db1_02a4_912f_7d82_ea6636c850c0 -->|calls| 62d7e534_aaea_fb4d_6201_8841bd8d5f53
  cf5641cc_b89e_d6b2_5d40_41ad5bbdd682["reconcileChildren()"]
  62d7e534_aaea_fb4d_6201_8841bd8d5f53 -->|calls| cf5641cc_b89e_d6b2_5d40_41ad5bbdd682
  style 62d7e534_aaea_fb4d_6201_8841bd8d5f53 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/react-reconciler/src/ReactFiberBeginWork.js lines 1355–1379

function updateProfiler(
  current: Fiber | null,
  workInProgress: Fiber,
  renderLanes: Lanes,
) {
  if (enableProfilerTimer) {
    workInProgress.flags |= Update;

    if (enableProfilerCommitHooks) {
      // Schedule a passive effect for this Profiler to call onPostCommit hooks.
      // This effect should be scheduled even if there is no onPostCommit callback for this Profiler,
      // because the effect is also where times bubble to parent Profilers.
      workInProgress.flags |= Passive;
      // Reset effect durations for the next eventual effect phase.
      // These are reset during render to allow the DevTools commit hook a chance to read them,
      const stateNode = workInProgress.stateNode;
      stateNode.effectDuration = -0;
      stateNode.passiveEffectDuration = -0;
    }
  }
  const nextProps: ProfilerProps = workInProgress.pendingProps;
  const nextChildren = nextProps.children;
  reconcileChildren(current, workInProgress, nextChildren, renderLanes);
  return workInProgress.child;
}