/** Builds the Environment. */
public Environment build() {
Preconditions.checkArgument(mutability.isMutable());
if (parent != null) {
Preconditions.checkArgument(!parent.mutability().isMutable());
}
Frame globalFrame = new Frame(mutability, parent);
Frame dynamicFrame = new Frame(mutability, null);
if (importedExtensions == null) {
importedExtensions = ImmutableMap.of();
}
return new Environment(
globalFrame,
dynamicFrame,
eventHandler,
importedExtensions,
isSkylark,
fileContentHashCode,
isLoadingPhase);
}
