public static SymbolDeclarationNode Parse(ContextNode context, IAbstractSyntaxTree lexerNode)
{
Contract.Requires(lexerNode.Type == Lexer.TokenType.DeclarationNode);
var info = DeclarationInfo.Parse(context.Parser, lexerNode);
var name = info.SymbolName.GetSingleSymbolOrThrow();
var declaredType = TypeNode.Parse(context, info.Type);
var point = context.Parser.GetSequencePoint(lexerNode);
ExpressionNode initializer = info.Initializer == null ? null : ExpressionNode.Parse(context, info.Initializer, declaredType);
return(Create(context, info.Modifiers, declaredType, name, initializer, point));
}
private void ParseDeclaration(IAbstractSyntaxTree lexerNode)
{
var declaration = DeclarationInfo.Parse(Parser, lexerNode);
if (declaration.Initializer != null && declaration.Initializer.IsFunctionDeclaration() && !declaration.Modifiers.HasFlag(Modifiers.Mutable))
{
//method
var method = FunctionDeclarationNode.ParseAsMethod(this, declaration);
declaredMethods.Add(method);
}
else
{
//field
var field = new FieldDeclarationNode(this, declaration, Parser.GetSequencePoint(lexerNode));
fields.Add(field);
}
}
public static DeclarationInfo Parse(Parser parser, IAbstractSyntaxTree lexerNode)
{
DeclarationInfo instance = new DeclarationInfo();
instance.Point = parser.GetSequencePoint(lexerNode);
foreach (var node in lexerNode.Children)
{
switch (node.Type)
{
case Lexer.TokenType.VariableModifier:
instance.Modifiers = instance.Modifiers.AddModifier(parser, node);
break;
case Lexer.TokenType.Symbol:
instance.SymbolName = node;
break;
case Lexer.TokenType.Type:
instance.Type = node;
break;
case Lexer.TokenType.Value:
instance.Initializer = node;
break;
case Lexer.TokenType.Assignment:
case Lexer.TokenType.EndOfLine:
break;
default:
ErrorCode.InvalidStructure.ReportAndThrow(parser.GetSequencePoint(node), String.Format("Unexpected node in declaration: {0}", node.Type));
break;
}
}
if (instance.SymbolName == null || instance.Type == null)
{
ErrorCode.InvalidStructure.ReportAndThrow(parser.GetSequencePoint(lexerNode),
"Missing elements in declaration {0}, lexer messed up", lexerNode.Content);
}
return(instance);
}
public FieldDeclarationNode(ClassNode parent, DeclarationInfo declaration, SequencePoint point)
: base(parent.Parser, parent, point)
{
this.IsStatic = true;
this.initializer = declaration.Initializer;
this.Name = declaration.SymbolName.GetSingleSymbolOrThrow();
this.TypeReference = TypeNode.Parse(this, declaration.Type);
this.modifiers = declaration.Modifiers;
this.field = new Lazy <FieldDefinition>(() => new FieldDefinition(Name, GetAttributes(), TypeReference));
if (TypeReference.IsAuto() && declaration.Initializer != null && declaration.Initializer.IsFunctionDeclaration())
{
TypeReference = FunctionDeclarationNode.ParseFunctorType(parent, declaration.Initializer);
}
if (!TypeReference.IsAuto())
{
DeclareField();
}
}
public static FunctionDeclarationNode ParseAsMethod(ClassNode parent, DeclarationInfo declaration)
{
var instance = new FunctionDeclarationNode(parent, declaration.Modifiers, declaration.SymbolName.GetSingleSymbolOrThrow(), declaration.Initializer.Children[0]);
return(instance);
}
