hasMemoCacheFunctionImport() — react Function Reference

Architecture documentation for the hasMemoCacheFunctionImport() function in Program.ts from the react codebase.

Function typescript BabelCompiler Entrypoint called by 1

Entity Profile

BabelCompiler→ Entrypoint→ hasMemoCacheFunctionImport() — react Function Reference

Dependency Diagram

graph TD
  36291a8f_e44c_5f09_4a36_e0708d0af350["hasMemoCacheFunctionImport()"]
  9aa4477d_960b_1ea1_b6d9_36076aaa70bd["Program.ts"]
  36291a8f_e44c_5f09_4a36_e0708d0af350 -->|defined in| 9aa4477d_960b_1ea1_b6d9_36076aaa70bd
  9e49688f_6b43_84fe_0dd2_18e5142c1f71["shouldSkipCompilation()"]
  9e49688f_6b43_84fe_0dd2_18e5142c1f71 -->|calls| 36291a8f_e44c_5f09_4a36_e0708d0af350
  style 36291a8f_e44c_5f09_4a36_e0708d0af350 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

compiler/packages/babel-plugin-react-compiler/src/Entrypoint/Program.ts lines 999–1023

function hasMemoCacheFunctionImport(
  program: NodePath<t.Program>,
  moduleName: string,
): boolean {
  let hasUseMemoCache = false;
  program.traverse({
    ImportSpecifier(path) {
      const imported = path.get('imported');
      let importedName: string | null = null;
      if (imported.isIdentifier()) {
        importedName = imported.node.name;
      } else if (imported.isStringLiteral()) {
        importedName = imported.node.value;
      }
      if (
        importedName === 'c' &&
        path.parentPath.isImportDeclaration() &&
        path.parentPath.get('source').node.value === moduleName
      ) {
        hasUseMemoCache = true;
      }
    },
  });
  return hasUseMemoCache;
}