public Completion Evaluate(Interpreter interpreter)
{
if (statementList == null)
{
return(Completion.NormalCompletion());
}
return(statementList.Evaluate(interpreter));
}
public override Completion Evaluate(Interpreter interpreter)
{
if (!statementList.Any())
{
return(Completion.NormalCompletion());
}
var oldEnv = interpreter.RunningExecutionContext().LexicalEnvironment;
var blockEnv = oldEnv.NewDeclarativeEnvironment();
BlockDeclarationInstantiation(statementList, blockEnv);
interpreter.RunningExecutionContext().LexicalEnvironment = blockEnv;
Completion blockValue = statementList.Evaluate(interpreter);
interpreter.RunningExecutionContext().LexicalEnvironment = oldEnv;
return(blockValue);
}