visit() — react Function Reference

Source Code

compiler/packages/babel-plugin-react-compiler/src/Validation/ValidateContextVariableLValues.ts lines 89–118

function visit(
  identifiers: IdentifierKinds,
  place: Place,
  kind: 'local' | 'context' | 'destructure',
): void {
  const prev = identifiers.get(place.identifier.id);
  if (prev !== undefined) {
    const wasContext = prev.kind === 'context';
    const isContext = kind === 'context';
    if (wasContext !== isContext) {
      if (prev.kind === 'destructure' || kind === 'destructure') {
        CompilerError.throwTodo({
          reason: `Support destructuring of context variables`,
          loc: kind === 'destructure' ? place.loc : prev.place.loc,
          description: null,
          suggestions: null,
        });
      }

      CompilerError.invariant(false, {
        reason:
          'Expected all references to a variable to be consistently local or context references',
        description: `Identifier ${printPlace(place)} is referenced as a ${kind} variable, but was previously referenced as a ${prev.kind} variable`,
        message: `this is ${prev.kind}`,
        loc: place.loc,
      });
    }
  }
  identifiers.set(place.identifier.id, {place, kind});
}