makeSwitchCaseBody() — react Function Reference

Architecture documentation for the makeSwitchCaseBody() function in code-path-state.js from the react codebase.

Function javascript BabelCompiler Validation calls 1

Entity Profile

BabelCompiler→ Validation→ makeSwitchCaseBody() — react Function Reference

Dependency Diagram

graph TD
  ee07b2fc_7180_3458_2bdf_5fc6bb04b377["makeSwitchCaseBody()"]
  d3cee22c_5e2d_f853_c075_2c7c55e5d22c["CodePathState"]
  ee07b2fc_7180_3458_2bdf_5fc6bb04b377 -->|defined in| d3cee22c_5e2d_f853_c075_2c7c55e5d22c
  fcc7c411_4c84_b9a2_79b5_df3d388d50fc["pushForkContext()"]
  ee07b2fc_7180_3458_2bdf_5fc6bb04b377 -->|calls| fcc7c411_4c84_b9a2_79b5_df3d388d50fc
  style ee07b2fc_7180_3458_2bdf_5fc6bb04b377 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/eslint-plugin-react-hooks/src/code-path-analysis/code-path-state.js lines 712–750

  makeSwitchCaseBody(isEmpty, isDefault) {
    const context = this.switchContext;

    if (!context.hasCase) {
      return;
    }

    /*
     * Merge forks.
     * The parent fork context has two segments.
     * Those are from the current case and the body of the previous case.
     */
    const parentForkContext = this.forkContext;
    const forkContext = this.pushForkContext();

    forkContext.add(parentForkContext.makeNext(0, -1));

    /*
     * Save `default` chunk info.
     * If the `default` label is not at the last, we must make a path from
     * the last `case` to the `default` chunk.
     */
    if (isDefault) {
      context.defaultSegments = parentForkContext.head;
      if (isEmpty) {
        context.foundDefault = true;
      } else {
        context.defaultBodySegments = forkContext.head;
      }
    } else {
      if (!isEmpty && context.foundDefault) {
        context.foundDefault = false;
        context.defaultBodySegments = forkContext.head;
      }
    }

    context.lastIsDefault = isDefault;
    context.countForks += 1;
  }