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282 lines
8.1 KiB
C++
282 lines
8.1 KiB
C++
#ifndef SMOKEPERL_H
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#define SMOKEPERL_H
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#include "smoke.h"
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#undef DEBUG
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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#ifndef __USE_POSIX
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#define __USE_POSIX
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#endif
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#ifndef __USE_XOPEN
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#define __USE_XOPEN
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#endif
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#include "EXTERN.h"
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#include "perl.h"
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#include "XSUB.h"
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#include "perlqt.h"
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#include "marshall.h"
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class SmokePerl;
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class SmokeType {
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Smoke::Type *_t; // derived from _smoke and _id, but cached
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Smoke *_smoke;
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Smoke::Index _id;
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public:
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SmokeType() : _t(0), _smoke(0), _id(0) {}
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SmokeType(Smoke *s, Smoke::Index i) : _smoke(s), _id(i) {
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if(_id < 0 || _id > _smoke->numTypes) _id = 0;
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_t = _smoke->types + _id;
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}
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// default copy constructors are fine, this is a constant structure
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// mutators
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void set(Smoke *s, Smoke::Index i) {
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_smoke = s;
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_id = i;
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_t = _smoke->types + _id;
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}
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// accessors
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Smoke *smoke() const { return _smoke; }
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Smoke::Index typeId() const { return _id; }
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const Smoke::Type &type() const { return *_t; }
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unsigned short flags() const { return _t->flags; }
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unsigned short elem() const { return _t->flags & Smoke::tf_elem; }
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const char *name() const { return _t->name; }
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Smoke::Index classId() const { return _t->classId; }
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// tests
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bool isStack() const { return ((flags() & Smoke::tf_ref) == Smoke::tf_stack); }
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bool isPtr() const { return ((flags() & Smoke::tf_ref) == Smoke::tf_ptr); }
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bool isRef() const { return ((flags() & Smoke::tf_ref) == Smoke::tf_ref); }
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bool isConst() const { return (flags() & Smoke::tf_const); }
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bool isClass() const {
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if(elem() == Smoke::t_class)
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return classId() ? true : false;
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return false;
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}
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bool operator ==(const SmokeType &b) const {
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const SmokeType &a = *this;
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if(a.name() == b.name()) return true;
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if(a.name() && b.name() && !strcmp(a.name(), b.name()))
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return true;
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return false;
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}
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bool operator !=(const SmokeType &b) const {
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const SmokeType &a = *this;
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return !(a == b);
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}
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};
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class SmokeClass {
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Smoke::Class *_c;
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Smoke *_smoke;
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Smoke::Index _id;
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public:
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SmokeClass(const SmokeType &t) {
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_smoke = t.smoke();
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_id = t.classId();
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_c = _smoke->classes + _id;
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}
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SmokeClass(Smoke *smoke, Smoke::Index id) : _smoke(smoke), _id(id) {
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_c = _smoke->classes + _id;
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}
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Smoke *smoke() const { return _smoke; }
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const Smoke::Class &c() const { return *_c; }
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Smoke::Index classId() const { return _id; }
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const char *className() const { return _c->className; }
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Smoke::ClassFn classFn() const { return _c->classFn; }
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Smoke::EnumFn enumFn() const { return _c->enumFn; }
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bool operator ==(const SmokeClass &b) const {
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const SmokeClass &a = *this;
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if(a.className() == b.className()) return true;
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if(a.className() && b.className() && !strcmp(a.className(), b.className()))
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return true;
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return false;
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}
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bool operator !=(const SmokeClass &b) const {
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const SmokeClass &a = *this;
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return !(a == b);
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}
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bool isa(const SmokeClass &sc) const {
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// This is a sick function, if I do say so myself
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if(*this == sc) return true;
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Smoke::Index *parents = _smoke->inheritanceList + _c->parents;
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for(int i = 0; parents[i]; i++) {
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if(SmokeClass(_smoke, parents[i]).isa(sc)) return true;
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}
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return false;
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}
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unsigned short flags() const { return _c->flags; }
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bool hasConstructor() const { return flags() & Smoke::cf_constructor; }
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bool hasCopy() const { return flags() & Smoke::cf_deepcopy; }
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bool hasVirtual() const { return flags() & Smoke::cf_virtual; }
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bool hasFire() const { return !(flags() & Smoke::cf_undefined); }
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};
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class SmokeMethod {
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Smoke::Method *_m;
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Smoke *_smoke;
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Smoke::Index _id;
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public:
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SmokeMethod(Smoke *smoke, Smoke::Index id) : _smoke(smoke), _id(id) {
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_m = _smoke->methods + _id;
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}
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Smoke *smoke() const { return _smoke; }
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const Smoke::Method &m() const { return *_m; }
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SmokeClass c() const { return SmokeClass(_smoke, _m->classId); }
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const char *name() const { return _smoke->methodNames[_m->name]; }
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int numArgs() const { return _m->numArgs; }
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unsigned short flags() const { return _m->flags; }
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SmokeType arg(int i) const {
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if(i >= numArgs()) return SmokeType();
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return SmokeType(_smoke, _smoke->argumentList[_m->args + i]);
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}
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SmokeType ret() const { return SmokeType(_smoke, _m->ret); }
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Smoke::Index methodId() const { return _id; }
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Smoke::Index method() const { return _m->method; }
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bool isStatic() const { return flags() & Smoke::mf_static; }
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bool isConst() const { return flags() & Smoke::mf_const; }
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void call(Smoke::Stack args, void *ptr = 0) const {
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Smoke::ClassFn fn = c().classFn();
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(*fn)(method(), ptr, args);
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}
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};
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class Smoke_MAGIC { // to be rewritten
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SmokeClass _c;
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void *_ptr;
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bool _isAllocated;
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public:
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Smoke_MAGIC(void *p, const SmokeClass &c) :
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_c(c), _ptr(p), _isAllocated(false) {}
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const SmokeClass &c() const { return _c; }
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void *ptr() const { return _ptr; }
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bool isAllocated() const { return _isAllocated; }
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void setAllocated(bool isAllocated) { _isAllocated = isAllocated; }
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};
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/**
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* SmokeObject is a thin wrapper around SV* objects. Each SmokeObject instance
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* increments the refcount of its SV* for the duration of its existance.
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*
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* SmokeObject instances are only returned from SmokePerl, since the method
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* of binding data to the scalar must be consistent across all modules.
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*/
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class SmokeObject {
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SV *sv;
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Smoke_MAGIC *m;
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public:
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SmokeObject(SV *obj, Smoke_MAGIC *mag) : sv(obj), m(mag) {
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SvREFCNT_inc(sv);
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}
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~SmokeObject() {
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SvREFCNT_dec(sv);
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}
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SmokeObject(const SmokeObject &other) {
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sv = other.sv;
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m = other.m;
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SvREFCNT_inc(sv);
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}
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SmokeObject &operator =(const SmokeObject &other) {
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sv = other.sv;
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m = other.m;
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SvREFCNT_inc(sv);
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return *this;
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}
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const SmokeClass &c() { return m->c(); }
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Smoke *smoke() { return c().smoke(); }
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SV *var() { return sv; }
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void *ptr() { return m->ptr(); }
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Smoke::Index classId() { return c().classId(); }
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void *cast(const SmokeClass &toc) {
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return smoke()->cast(
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ptr(),
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classId(),
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smoke()->idClass(toc.className())
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);
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}
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const char *className() { return c().className(); }
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bool isValid() const { return SvOK(sv) ? true : false; }
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bool isAllocated() const { return m->isAllocated(); }
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void setAllocated(bool i) { m->setAllocated(i); }
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};
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/**
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* Since it's not easy to share functions between Perl modules, the common
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* interface between all Smoked libraries and Perl will be defined in this
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* class. There will be only one SmokePerl instance loaded for an entire Perl
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* process. It has no data members here -- this is only an abstract interface.
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*/
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class SmokePerl {
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void *future_extension;
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public:
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SmokePerl() : future_extension(0) {}
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// don't need this, we're only defining an interface
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virtual ~SmokePerl() = 0;
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/**
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* Registers a Smoke object
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*/
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virtual void registerSmoke(const char *name, Smoke *smoke) = 0;
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/**
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* Gets a smoke object from its name
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*/
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virtual Smoke *getSmoke(const char *name) = 0;
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/**
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* Determines if the named smoke is registered.
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*/
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bool isSmokeRegistered(const char *name) { return getSmoke(name) ? true : false; }
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virtual void registerHandlers(TypeHandler *handlers) = 0;
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/**
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* Returns a new blessed SV referring to the pointer passed.
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* Use sv_2mortal() before passing it around.
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*
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* @param p pointer to the C++ object. The pointer isn't automatically deleted by SmokePerl.
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* @param c class of the pointer
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* @see #getObject
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* @see #deleteObject
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*/
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virtual SmokeObject newObject(void *p, const SmokeClass &c) = 0;
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/**
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* Same as newObject(), except it doesn't treat p as owned by Perl
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*/
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virtual SmokeObject wrapObject(void *p, const SmokeClass &c) = 0;
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/**
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* Any SV* created with newObject() on a class with virtual methods can be
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* retrieved again.
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*/
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virtual SmokeObject getObject(void *p) = 0;
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/**
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* Create a SmokeObject from the given SV
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*/
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virtual SmokeObject getObject(SV *sv) = 0;
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};
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#endif // SMOKEPERL_H
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