public override Scope CreateScope() {
if (_optimizedScope == null) {
CachedOptimizedCodeAttribute[] attrs = (CachedOptimizedCodeAttribute[])_code.Method.GetCustomAttributes(typeof(CachedOptimizedCodeAttribute), false);
// create the CompilerContext for the ScriptCode
CachedOptimizedCodeAttribute optimizedCode = attrs[0];
// create the storage for the global scope
GlobalsDictionary dict = new GlobalsDictionary(SymbolTable.StringsToIds(optimizedCode.Names));
// create the CodeContext for the code from the storage
Scope scope = new Scope(dict);
CodeContext context = new CodeContext(scope, SourceUnit.LanguageContext);
// initialize the tuple
IModuleDictionaryInitialization ici = dict as IModuleDictionaryInitialization;
if (ici != null) {
ici.InitializeModuleDictionary(context);
}
_optimizedScope = scope;
}
return _optimizedScope;
}
public LambdaExpression RewriteLambda(LambdaExpression lambda, string name, LanguageContext languageContext, bool optimized) {
Debug.Assert(_context == null);
Debug.Assert(lambda.Parameters.Count == 0);
if (optimized) {
_wrappers = new Dictionary<GlobalVariableExpression, ModuleGlobalWrapper>();
var customDictionary = new GlobalsDictionary();
this.Scope = new Scope(customDictionary);
//context.EnsureScopeExtension(scope.ModuleScope);
//return new CodeContext(scope, context);
_codeContext = new CodeContext(this.Scope, languageContext);
_context = Expression.Constant(_codeContext);
var ret = (LambdaExpression)Visit(lambda); //???
customDictionary.SetData(new List<ModuleGlobalWrapper>(_wrappers.Values).ToArray());
return ret;
} else {
// Fix up the top-level lambda to have a scope and language parameters
var scopeParameter = Expression.Parameter(typeof(Scope), "$scope");
var languageParameter = Expression.Parameter(typeof(LanguageContext), "$language");
var contextVariable = Expression.Variable(typeof(CodeContext), "$globalContext");
_context = contextVariable;
lambda = (LambdaExpression)Visit(lambda);
return Expression.Lambda<DlrMainCallTarget>(
AstUtils.AddScopedVariable(
lambda.Body,
contextVariable,
Expression.Call(typeof(ScriptingRuntimeHelpers).GetMethod("CreateTopLevelCodeContext"), scopeParameter, languageParameter)
),
name,
new[] { scopeParameter, languageParameter }
);
}
}