public void importSymbol(String importString, Identifier symbol, String nameInLoadedFile)
throws NoSuchVariableException, LoadFailedException {
Preconditions.checkState(isGlobal()); // loading is only allowed at global scope.
if (!importedExtensions.containsKey(importString)) {
throw new LoadFailedException(importString);
}
Extension ext = importedExtensions.get(importString);
// TODO(bazel-team): Throw a LoadFailedException instead, with an appropriate message.
// Throwing a NoSuchVariableException is backward compatible, but backward.
if (!ext.containsKey(nameInLoadedFile)) {
throw new NoSuchVariableException(nameInLoadedFile);
}
Object value = ext.get(nameInLoadedFile);
try {
update(symbol.getName(), value);
} catch (EvalException e) {
throw new LoadFailedException(importString);
}
}
