private Symbols.Type ParseTypeSpecifier()
{
ParseTypedefs();
switch (scan.Peek().type)
{
case Token.Type.KW_VOID:
case Token.Type.KW_INT:
case Token.Type.KW_DOUBLE:
case Token.Type.KW_CHAR:
return tstack.GetType(scan.Read());
case Token.Type.KW_STRUCT:
scan.Read();
Token identifier = null;
if (scan.Peek().type == Token.Type.IDENTIFICATOR)
{
identifier = scan.Read();
}
if (scan.Peek().type == Token.Type.LBRACE || identifier == null)
{
CheckToken(scan.Peek(), Token.Type.LBRACE, true);
Symbols.RECORD res = null;
if (identifier == null)
{
res = new Symbols.RECORD();
}
else
{
res = new Symbols.RECORD(identifier);
}
tstack.NewTable();
try
{
ParseStructDeclarationList();
}
catch (Exception e)
{
res.SetFields(tstack.PopTable());
throw e;
}
res.SetFields(tstack.PopTable());
if (identifier != null)
{
tstack.AddTag(res);
}
CheckToken(scan.Peek(), Token.Type.RBRACE, true);
return res;
}
else
{
return (Symbols.Type)tstack.GetTag(identifier);
}
default:
if (scan.Peek().type != Token.Type.IDENTIFICATOR)
{
throw new Syntax.Exception("требуется объявление", scan.GetPos(), scan.GetLine());
}
return tstack.GetType(scan.Read());
}
}
private Symbols.Type ParseTypeSpecifier()
{
ParseTypedefs();
switch (scan.Peek().type)
{
case Token.Type.KW_VOID:
case Token.Type.KW_INT:
case Token.Type.KW_DOUBLE:
case Token.Type.KW_CHAR:
return(tstack.GetType(scan.Read()));
case Token.Type.KW_STRUCT:
scan.Read();
Token identifier = null;
if (scan.Peek().type == Token.Type.IDENTIFICATOR)
{
identifier = scan.Read();
}
if (scan.Peek().type == Token.Type.LBRACE || identifier == null)
{
CheckToken(scan.Peek(), Token.Type.LBRACE, true);
Symbols.RECORD res = null;
if (identifier == null)
{
res = new Symbols.RECORD();
}
else
{
res = new Symbols.RECORD(identifier);
}
tstack.NewTable();
try
{
ParseStructDeclarationList();
}
catch (Exception e)
{
res.SetFields(tstack.PopTable());
throw e;
}
res.SetFields(tstack.PopTable());
if (identifier != null)
{
tstack.AddTag(res);
}
CheckToken(scan.Peek(), Token.Type.RBRACE, true);
return(res);
}
else
{
return((Symbols.Type)tstack.GetTag(identifier));
}
default:
if (scan.Peek().type != Token.Type.IDENTIFICATOR)
{
throw new Syntax.Exception("требуется объявление", scan.GetPos(), scan.GetLine());
}
return(tstack.GetType(scan.Read()));
}
}
