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using System;
using System.Runtime.InteropServices; // for structures
namespace PureData
{
public enum AtomType {Null = 0, Float = 1, Symbol = 2, Pointer = 3};
[StructLayout (LayoutKind.Sequential)]
sealed public class Symbol
{
// this should NOT be public
readonly private IntPtr ptr;
public Symbol(IntPtr p)
{
ptr = p;
}
public Symbol(Symbol s)
{
ptr = s.ptr;
}
public Symbol(string s)
{
ptr = Core.GenSym(s);
}
override public string ToString()
{
return Core.EvalSym(this);
}
}
[StructLayout (LayoutKind.Sequential)]
sealed public class Pointer
{
public IntPtr ptr;
}
[StructLayout (LayoutKind.Explicit)]
public struct Word
{
[FieldOffset(0)] public float w_float;
[FieldOffset(0)] public Symbol w_symbol;
[FieldOffset(0)] public Pointer w_pointer;
}
//[StructLayout (LayoutKind.Explicit)]
[StructLayout (LayoutKind.Sequential)]
sealed public class Atom
{
public AtomType type;
public Word word;
public Atom(float f)
{
type = AtomType.Float;
word.w_float = f;
}
public Atom(int i)
{
type = AtomType.Float;
word.w_float = (float)i;
}
public Atom(Symbol s)
{
type = AtomType.Symbol;
word.w_symbol = s;
}
public Atom(string s)
{
type = AtomType.Symbol;
word.w_symbol = new Symbol(s);
}
}
// this struct is relative to this c struct, see clr.c
/*
// simplyfied atom
typedef struct atom_simple atom_simple;
typedef enum
{
A_S_NULL=0,
A_S_FLOAT=1,
A_S_SYMBOL=2,
} t_atomtype_simple;
typedef struct atom_simple
{
t_atomtype_simple a_type;
union{
float float_value;
MonoString *string_value;
} stuff;
};
*/
}
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