subscribeTsc() — react Function Reference

Architecture documentation for the subscribeTsc() function in runner-watch.ts from the react codebase.

Function typescript BabelCompiler Optimization calls 1 called by 1

Entity Profile

BabelCompiler→ Optimization→ subscribeTsc() — react Function Reference

Dependency Diagram

graph TD
  3e4a24c5_3237_0f3f_ad07_853134dd7327["subscribeTsc()"]
  3c2dde8c_5e90_a277_13bd_39083b18cadb["runner-watch.ts"]
  3e4a24c5_3237_0f3f_ad07_853134dd7327 -->|defined in| 3c2dde8c_5e90_a277_13bd_39083b18cadb
  7865a05e_4feb_a8ba_40fe_4675700de39b["makeWatchRunner()"]
  7865a05e_4feb_a8ba_40fe_4675700de39b -->|calls| 3e4a24c5_3237_0f3f_ad07_853134dd7327
  162e6a49_36d0_cdf1_de46_a40230bcfbc6["watchSrc()"]
  3e4a24c5_3237_0f3f_ad07_853134dd7327 -->|calls| 162e6a49_36d0_cdf1_de46_a40230bcfbc6
  style 3e4a24c5_3237_0f3f_ad07_853134dd7327 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

compiler/packages/snap/src/runner-watch.ts lines 155–186

function subscribeTsc(
  state: RunnerState,
  onChange: (state: RunnerState) => void,
) {
  // Run TS in incremental watch mode
  watchSrc(
    function onStart() {
      // Notify the user when compilation starts but don't clear the screen yet
      console.log('\nCompiling...');
    },
    isTypecheckSuccess => {
      let isCompilerBuildValid = false;
      if (isTypecheckSuccess) {
        try {
          execSync('yarn build', {cwd: BABEL_PLUGIN_ROOT});
          console.log('Built compiler successfully with tsup');
          isCompilerBuildValid = true;
        } catch (e) {
          console.warn('Failed to build compiler with tsup:', e);
        }
      }
      // Bump the compiler version after a build finishes
      // and re-run tests
      if (isCompilerBuildValid) {
        state.compilerVersion++;
      }
      state.isCompilerBuildValid = isCompilerBuildValid;
      state.mode.action = RunnerAction.Test;
      onChange(state);
    },
  );
}