Method setupChecker

internal/api/session.go:490–509

setupChecker resolves snapshot, program, and type checker for a project. Callers must defer setup.done() to release the checker.

(ctx context.Context, snapshot SnapshotID, projectHandle ProjectID)

// setupChecker resolves snapshot, program, and type checker for a project.
// Callers must defer setup.done() to release the checker.
func (s *Session) setupChecker(ctx context.Context, snapshot SnapshotID, projectHandle ProjectID) (checkerSetup, error) {
	sd, err := s.getSnapshotData(snapshot)
	if err != nil {
		return checkerSetup{}, err
	}

	program, err := sd.getProgram(projectHandle)
	if err != nil {
		return checkerSetup{}, err
	}

	c, done := program.GetTypeChecker(core.WithCheckerLifetime(ctx, core.CheckerLifetimeAPI))
	return checkerSetup{
		sd:        sd,
		program:   program,
		checker:   c,
		done:      done,
		projectID: projectHandle,
	}, nil
}

// setupLanguageService creates a LanguageService for the given snapshot/project.
// Unlike setupChecker, this does NOT acquire a checker from the pool, so callers that