public override AstNode Visit(ModuleNode node)
{
// Extract the constants.
ConstantGrouping grouping = new ConstantGrouping();
node.Accept(grouping);
Dictionary<FieldVariable, ConstantData> constants = grouping.GetConstants();
// Build constant dependency graph and perform a topolgical sort.
ConstantDependencies deps = new ConstantDependencies(constants);
List<ConstantData> sortedConstants = deps.BuildGraph();
// Expand the constants itself.
foreach(ConstantData constant in sortedConstants)
{
// Visit the initializer.
Expression initializer = constant.GetInitializer();
initializer = (Expression)initializer.Accept(this);
// The initializer must be a constant.
if(!initializer.IsConstant())
Error(initializer, "is not a constant expression.");
// The constant expression value must be the constant itself.
FieldVariable field = constant.GetVariable();
ConstantValue initValue = (ConstantValue)initializer.GetNodeValue();
field.SetInitializer(initValue.Cast(field.GetVariableType()));
}
// Now, perform module constant expansion.
return base.Visit (node);
}
public ChelaCompiler(ModuleType moduleType)
{
// Create the module node.
moduleNode = new ModuleNode(null, null);
moduleNode.SetName("global");
// Create the module.
ChelaModule module = new ChelaModule();
moduleNode.SetModule(module);
module.SetName("unnamed");
module.SetModuleType(moduleType);
}
public override AstNode Visit(ModuleNode node)
{
// This is for the global namespace.
currentModule = node.GetModule();
currentScope = currentModule.GetGlobalNamespace();
currentContainer = currentScope;
// Create the static constructor.
CreateStaticConstructor(node, currentModule.GetGlobalNamespace());
// Visit the children.
VisitList(node.GetChildren());
return node;
}
public override AstNode Visit(ModuleNode node)
{
// Store the old module.
ChelaModule oldModule = this.currentModule;
currentModule = node.GetModule();
// Visit the children.
PushScope(currentModule.GetGlobalNamespace());
VisitList(node.GetChildren());
PopScope();
// Restore the module.
currentModule = oldModule;
return node;
}
public override AstNode Visit(ModuleNode node)
{
currentModule = node.GetModule();
currentScope = currentModule.GetGlobalNamespace();
currentContainer = currentScope;
VisitList(node.GetChildren());
return node;
}
public virtual AstNode Visit(ModuleNode node)
{
throw new System.NotImplementedException();
}
public virtual AstNode Visit(ModuleNode node)
{
throw new System.NotImplementedException();
}