private void SetScopeSource(Symbol classSymbol)
{
Current = classSymbol;
}
private void ValidateReturnStatementType(MethodDeclr ast, Symbol symbol)
{
if (!ResolvingTypes)
{
return;
}
IType returnStatementType;
// no return found
if (ast.ReturnAst == null)
{
returnStatementType = new BuiltInType(ExpressionTypes.Void);
}
else
{
returnStatementType = ast.ReturnAst.AstSymbolType;
}
var delcaredSymbol = ScopeUtil.CreateSymbolType(ast.MethodReturnType);
// if its inferred, just use whatever the return statement i
if (delcaredSymbol.ExpressionType == ExpressionTypes.Inferred)
{
return;
}
if (!TokenUtil.EqualOrPromotable(returnStatementType.ExpressionType, delcaredSymbol.ExpressionType))
{
throw new InvalidSyntax(String.Format("Return type {0} for function {1} is not of the same type of declared method (type {2})",
returnStatementType.ExpressionType, symbol.Name, delcaredSymbol.ExpressionType));
}
}
private void DefineToScope(Ast ast, Symbol symbol)
{
if (ast.CurrentScope != null && ast.CurrentScope.Symbols.ContainsKey(symbol.Name))
{
Symbol old = ast.CurrentScope.Resolve(symbol.Name);
if (old.Type == null)
{
ast.CurrentScope.Define(symbol);
}
}
Current.Define(symbol);
}