You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
354 lines
8.4 KiB
354 lines
8.4 KiB
#ifndef SMOKE_H
|
|
#define SMOKE_H
|
|
|
|
#include <string.h>
|
|
|
|
/*
|
|
* Copyright (C) 2002, Ashley Winters <qaqortog@nwlink.com>
|
|
*/
|
|
|
|
class SmokeBinding;
|
|
|
|
class Smoke {
|
|
public:
|
|
union StackItem; // defined below
|
|
/**
|
|
* A stack is an array of arguments, passed to a method when calling it.
|
|
*/
|
|
typedef StackItem* Stack;
|
|
|
|
enum EnumOperation {
|
|
EnumNew,
|
|
EnumDelete,
|
|
EnumFromLong,
|
|
EnumToLong
|
|
};
|
|
|
|
typedef short Index;
|
|
typedef void (*ClassFn)(Index method, void* obj, Stack args);
|
|
typedef void* (*CastFn)(void* obj, Index from, Index to);
|
|
typedef void (*EnumFn)(EnumOperation, Index, void*&, long&);
|
|
|
|
enum ClassFlags {
|
|
cf_constructor = 0x01, // has a constructor
|
|
cf_deepcopy = 0x02, // has copy constructor
|
|
cf_virtual = 0x04, // has virtual destructor
|
|
cf_undefined = 0x10 // defined elsewhere
|
|
};
|
|
/**
|
|
* Describe one class.
|
|
*/
|
|
struct Class {
|
|
const char *className; // Name of the class
|
|
Index parents; // Index into inheritanceList
|
|
ClassFn classFn; // Calls any method in the class
|
|
EnumFn enumFn; // Handles enum pointers
|
|
unsigned short flags; // ClassFlags
|
|
};
|
|
|
|
enum MethodFlags {
|
|
mf_static = 0x01,
|
|
mf_const = 0x02
|
|
};
|
|
/**
|
|
* Describe one method of one class.
|
|
*/
|
|
struct Method {
|
|
Index classId; // Index into classes
|
|
Index name; // Index into methodNames; real name
|
|
Index args; // Index into argumentList
|
|
unsigned char numArgs; // Number of arguments
|
|
unsigned char flags; // MethodFlags (const/static/etc...)
|
|
Index ret; // Index into types for the return type
|
|
Index method; // Passed to Class.classFn, to call method
|
|
};
|
|
|
|
/**
|
|
* One MethodMap entry maps the munged method prototype
|
|
* to the Method entry.
|
|
*
|
|
* The munging works this way:
|
|
* $ is a plain scalar
|
|
* # is an object
|
|
* ? is a non-scalar (reference to array or hash, undef)
|
|
*
|
|
* e.g. TQApplication(int &, char **) becomes TQApplication$?
|
|
*/
|
|
struct MethodMap {
|
|
Index classId; // Index into classes
|
|
Index name; // Index into methodNames; munged name
|
|
Index method; // Index into methods
|
|
};
|
|
|
|
enum TypeFlags {
|
|
// The first 4 bits indicate the TypeId value, i.e. which field
|
|
// of the StackItem union is used.
|
|
tf_elem = 0x0F,
|
|
|
|
// Always only one of the next three flags should be set
|
|
tf_stack = 0x10, // Stored on the stack, 'type'
|
|
tf_ptr = 0x20, // Pointer, 'type*'
|
|
tf_ref = 0x30, // Reference, 'type&'
|
|
// Can | whatever ones of these apply
|
|
tf_const = 0x40 // const argument
|
|
};
|
|
/**
|
|
* One Type entry is one argument type needed by a method.
|
|
* Type entries are shared, there is only one entry for "int" etc.
|
|
*/
|
|
struct Type {
|
|
const char *name; // Stringified type name
|
|
Index classId; // Index into classes. -1 for none
|
|
unsigned short flags; // TypeFlags
|
|
};
|
|
|
|
// We could just pass everything around using void* (pass-by-reference)
|
|
// I don't want to, though. -aw
|
|
union StackItem {
|
|
void* s_voidp;
|
|
bool s_bool;
|
|
char s_char;
|
|
unsigned char s_uchar;
|
|
short s_short;
|
|
unsigned short s_ushort;
|
|
int s_int;
|
|
unsigned int s_uint;
|
|
long s_long;
|
|
unsigned long s_ulong;
|
|
float s_float;
|
|
double s_double;
|
|
long s_enum;
|
|
void* s_class;
|
|
};
|
|
enum TypeId {
|
|
t_voidp,
|
|
t_bool,
|
|
t_char,
|
|
t_uchar,
|
|
t_short,
|
|
t_ushort,
|
|
t_int,
|
|
t_uint,
|
|
t_long,
|
|
t_ulong,
|
|
t_float,
|
|
t_double,
|
|
t_enum,
|
|
t_class,
|
|
t_last // number of pre-defined types
|
|
};
|
|
|
|
// Passed to constructor
|
|
/**
|
|
* The classes array defines every class for this module
|
|
*/
|
|
Class *classes;
|
|
Index numClasses;
|
|
|
|
/**
|
|
* The methods array defines every method in every class for this module
|
|
*/
|
|
Method *methods;
|
|
Index numMethods;
|
|
|
|
/**
|
|
* methodMaps maps the munged method prototypes
|
|
* to the methods entries.
|
|
*/
|
|
MethodMap *methodMaps;
|
|
Index numMethodMaps;
|
|
|
|
/**
|
|
* Array of method names, for Method.name and MethodMap.name
|
|
*/
|
|
const char **methodNames;
|
|
Index numMethodNames;
|
|
|
|
/**
|
|
* List of all types needed by the methods (arguments and return values)
|
|
*/
|
|
Type *types;
|
|
Index numTypes;
|
|
|
|
/**
|
|
* Groups of class IDs (-1 separated) used as super class lists.
|
|
* For classes with super classes: Class.parents = index into this array.
|
|
*/
|
|
Index *inheritanceList;
|
|
/**
|
|
* Groups of type IDs (-1 separated), describing the types of argument for a method.
|
|
* Method.args = index into this array.
|
|
*/
|
|
Index *argumentList;
|
|
/**
|
|
* Groups of method prototypes with the same number of arguments, but different types.
|
|
* Used to resolve overloading.
|
|
*/
|
|
Index *ambiguousMethodList;
|
|
/**
|
|
* Function used for casting from/to the classes defined by this module.
|
|
*/
|
|
CastFn castFn;
|
|
|
|
// Not passed to constructor
|
|
SmokeBinding *binding;
|
|
|
|
/**
|
|
* Constructor
|
|
*/
|
|
Smoke(Class *_classes, Index _numClasses,
|
|
Method *_methods, Index _numMethods,
|
|
MethodMap *_methodMaps, Index _numMethodMaps,
|
|
const char **_methodNames, Index _numMethodNames,
|
|
Type *_types, Index _numTypes,
|
|
Index *_inheritanceList,
|
|
Index *_argumentList,
|
|
Index *_ambiguousMethodList,
|
|
CastFn _castFn) :
|
|
classes(_classes), numClasses(_numClasses),
|
|
methods(_methods), numMethods(_numMethods),
|
|
methodMaps(_methodMaps), numMethodMaps(_numMethodMaps),
|
|
methodNames(_methodNames), numMethodNames(_numMethodNames),
|
|
types(_types), numTypes(_numTypes),
|
|
inheritanceList(_inheritanceList),
|
|
argumentList(_argumentList),
|
|
ambiguousMethodList(_ambiguousMethodList),
|
|
castFn(_castFn),
|
|
|
|
binding(0)
|
|
{}
|
|
|
|
inline void *cast(void *ptr, Index from, Index to) {
|
|
if(!castFn) return ptr;
|
|
return (*castFn)(ptr, from, to);
|
|
}
|
|
|
|
// return classname directly
|
|
inline const char *className(Index classId) {
|
|
return classes[classId].className;
|
|
}
|
|
|
|
inline int leg(Index a, Index b) { // ala Perl's <=>
|
|
if(a == b) return 0;
|
|
return (a > b) ? 1 : -1;
|
|
}
|
|
|
|
inline Index idType(const char *t) {
|
|
if(!t) return 0;
|
|
Index imax = numTypes;
|
|
Index imin = 0;
|
|
Index icur = -1;
|
|
int icmp = -1;
|
|
|
|
while(imax >= imin) {
|
|
icur = (imin + imax) / 2;
|
|
if(icur > 0)
|
|
icmp = strcmp(types[icur].name, t);
|
|
else
|
|
icmp = -1;
|
|
if(!icmp) break;
|
|
if(icmp > 0)
|
|
imax = icur - 1;
|
|
else
|
|
imin = icur + 1;
|
|
}
|
|
|
|
return (!icmp) ? icur : 0;
|
|
}
|
|
|
|
inline Index idClass(const char *c) {
|
|
if(!c) return 0;
|
|
Index imax = numClasses;
|
|
Index imin = 0;
|
|
Index icur = -1;
|
|
int icmp = -1;
|
|
|
|
while(imax >= imin) {
|
|
icur = (imin + imax) / 2;
|
|
if(icur > 0)
|
|
icmp = strcmp(classes[icur].className, c);
|
|
else
|
|
icmp = -1;
|
|
if(!icmp) break;
|
|
if(icmp > 0)
|
|
imax = icur - 1;
|
|
else
|
|
imin = icur + 1;
|
|
}
|
|
|
|
return (!icmp) ? icur : 0;
|
|
}
|
|
|
|
inline Index idMethodName(const char *m) {
|
|
if(!m) return 0;
|
|
Index imax = numMethodNames;
|
|
Index imin = 0;
|
|
Index icur = -1;
|
|
int icmp = -1;
|
|
while(imax >= imin) {
|
|
icur = (imin + imax) / 2;
|
|
icmp = strcmp(methodNames[icur], m);
|
|
if(!icmp) break;
|
|
if(icmp > 0)
|
|
imax = icur - 1;
|
|
else
|
|
imin = icur + 1;
|
|
}
|
|
|
|
return (!icmp) ? icur : 0;
|
|
}
|
|
|
|
inline Index idMethod(Index c, Index name) {
|
|
Index imax = numMethodMaps;
|
|
Index imin = 0;
|
|
Index icur = -1;
|
|
int icmp = -1;
|
|
while(imax >= imin) {
|
|
icur = (imin + imax) / 2;
|
|
icmp = leg(methodMaps[icur].classId, c);
|
|
if(!icmp) {
|
|
icmp = leg(methodMaps[icur].name, name);
|
|
if(!icmp) break;
|
|
}
|
|
if(icmp > 0)
|
|
imax = icur - 1;
|
|
else
|
|
imin = icur + 1;
|
|
}
|
|
|
|
return (!icmp) ? icur : 0;
|
|
}
|
|
|
|
inline Index findMethod(Index c, Index name) {
|
|
// TODO: If method is in a parent module, forward the call from here
|
|
if(!c || !name) return 0;
|
|
Index mid = idMethod(c, name);
|
|
if(mid) return mid;
|
|
if(!classes[c].parents) return 0;
|
|
for(int p = classes[c].parents; inheritanceList[p] ; p++) {
|
|
mid = findMethod(inheritanceList[p], name);
|
|
if(mid) return mid;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
inline Index findMethod(const char *c, const char *name) {
|
|
Index idc = idClass(c);
|
|
Index idname = idMethodName(name);
|
|
return findMethod(idc, idname);
|
|
}
|
|
};
|
|
|
|
class SmokeBinding {
|
|
protected:
|
|
Smoke *smoke;
|
|
public:
|
|
SmokeBinding(Smoke *s) : smoke(s) {}
|
|
virtual void deleted(Smoke::Index classId, void *obj) = 0;
|
|
virtual bool callMethod(Smoke::Index method, void *obj, Smoke::Stack args, bool isAbstract = false) = 0;
|
|
virtual char* className(Smoke::Index classId) = 0;
|
|
virtual ~SmokeBinding() {}
|
|
};
|
|
|
|
#endif
|