Method resolve

src/main/java/net/starlark/java/eval/Module.java:223–252

Implements the resolver's module interface.

(String name)

  /** Implements the resolver's module interface. */
  @Override
  public Resolver.Scope resolve(String name) throws Undefined {
    // global?
    if (globalIndex.containsKey(name)) {
      return Resolver.Scope.GLOBAL;
    }

    // predeclared?
    Object v = getPredeclared(name);
    if (v != null) {
      if (v instanceof GuardedValue) {
        // Name is correctly spelled, but access is disabled by a flag or by client data.
        throw new Undefined(
            ((GuardedValue) v).getErrorFromAttemptingAccess(name), /*candidates=*/ null);
      }
      return Resolver.Scope.PREDECLARED;
    }

    // universal?
    if (Starlark.UNIVERSE.containsKey(name)) {
      return Resolver.Scope.UNIVERSAL;
    }

    // undefined
    Set<String> candidates = new HashSet<>();
    candidates.addAll(globalIndex.keySet());
    candidates.addAll(predeclared.keySet());
    candidates.addAll(Starlark.UNIVERSE.keySet());
    throw new Undefined(String.format("name '%s' is not defined", name), candidates);
  }

  /**
   * Returns the value of the specified global variable, or null if not bound. Does not look in the