(MOV) Moved test.c function.c/h back to project directory.

function.h

@@ -0,0 +1,34 @@
+#ifndef FUNCTION_H
+# define FUNCTION_H
+
+# include <Compound/string.h>
+
+typedef Var Type;
+
+typedef struct {
+  attr(registered 1)  Type type;
+  
+  attr(nullity false)  String identity;
+  
+  attr(alignwith 1)
+  attr(optional true)  Type value;
+} Parameter;
+
+typedef void * Block;
+
+typedef struct {
+  Type returns;
+  Array type(Parameter) params;
+  Var type(Block) body;
+} Function;
+
+Status Function_Create(Function *inst, Type returns,
+                       Array type(Parameter) params, Var type(Block) body);
+Status Function_CopyOf(Function *inst, Function *other);
+Status Function_Delete(Function *inst);
+Status Function_Literalise(Function *inst, String *buff);
+Status Function_Overwrite(Function *inst, Function *other);
+bool   Function_Equal(Function *inst, Function *other);
+bool   FunctionUtils_IsVariadic(Function *inst);
+
+#endif  /* FUNCTION_H */