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codegen.h
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codegen.h
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#ifndef THINGDEF_EXP_H
#define THINGDEF_EXP_H
/*
** thingdef_exp.h
**
** Expression evaluation
**
**---------------------------------------------------------------------------
** Copyright 2008 Christoph Oelckers
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
** 4. When not used as part of ZDoom or a ZDoom derivative, this code will be
** covered by the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or (at
** your option) any later version.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
*/
#include "m_random.h"
#include "sc_man.h"
#include "s_soundinternal.h"
#include "vmbuilder.h"
#include "scopebarrier.h"
#include "types.h"
#include "vmintern.h"
#include "c_cvars.h"
struct FState; // needed for FxConstant. Maybe move the state constructor to a subclass later?
#define CHECKRESOLVED() if (isresolved) return this; isresolved=true;
#define SAFE_DELETE(p) if (p!=NULL) { delete p; p=NULL; }
#define RESOLVE(p,c) if (p!=NULL) p = p->Resolve(c)
#define ABORT(p) if (!(p)) { delete this; return NULL; }
#define SAFE_RESOLVE(p,c) RESOLVE(p,c); ABORT(p)
#define SAFE_RESOLVE_OPT(p,c) if (p!=NULL) { SAFE_RESOLVE(p,c) }
class VMFunctionBuilder;
class FxJumpStatement;
extern FMemArena FxAlloc;
//==========================================================================
//
//
//
//==========================================================================
struct FScriptPosition;
class FxLoopStatement;
class FxCompoundStatement;
class FxLocalVariableDeclaration;
typedef TDeletingArray<FxExpression*> FArgumentList;
struct FCompileContext
{
FxExpression *ControlStmt = nullptr;
FxLoopStatement *Loop = nullptr;
FxCompoundStatement *Block = nullptr;
PPrototype *ReturnProto;
PFunction *Function; // The function that is currently being compiled (or nullptr for constant evaluation.)
PContainerType *Class; // The type of the owning class.
bool FromDecorate; // DECORATE must silence some warnings and demote some errors.
int StateIndex; // index in actor's state table for anonymous functions, otherwise -1 (not used by DECORATE which pre-resolves state indices)
int StateCount; // amount of states an anoymous function is being used on (must be 1 for state indices to be allowed.)
int Lump;
bool Unsafe = false;
TDeletingArray<FxLocalVariableDeclaration *> FunctionArgs;
PNamespace *CurGlobals;
VersionInfo Version;
FString VersionString;
FCompileContext(PNamespace *spc, PFunction *func, PPrototype *ret, bool fromdecorate, int stateindex, int statecount, int lump, const VersionInfo &ver);
FCompileContext(PNamespace *spc, PContainerType *cls, bool fromdecorate); // only to be used to resolve constants!
PSymbol *FindInClass(FName identifier, PSymbolTable *&symt);
PSymbol *FindInSelfClass(FName identifier, PSymbolTable *&symt);
PSymbol *FindGlobal(FName identifier);
void HandleJumps(int token, FxExpression *handler);
void CheckReturn(PPrototype *proto, FScriptPosition &pos);
bool CheckWritable(int flags);
FxLocalVariableDeclaration *FindLocalVariable(FName name);
};
//==========================================================================
//
//
//
//==========================================================================
struct ExpVal
{
PType *Type;
union
{
int Int;
double Float;
void *pointer;
};
ExpVal()
{
Type = TypeSInt32;
Int = 0;
}
~ExpVal()
{
if (Type == TypeString)
{
((FString *)&pointer)->~FString();
}
}
ExpVal(const FString &str)
{
Type = TypeString;
::new(&pointer) FString(str);
}
ExpVal(const ExpVal &o)
{
Type = o.Type;
if (o.Type == TypeString)
{
::new(&pointer) FString(*(FString *)&o.pointer);
}
else
{
memcpy(&Float, &o.Float, 8);
}
}
ExpVal &operator=(const ExpVal &o)
{
if (Type == TypeString)
{
((FString *)&pointer)->~FString();
}
Type = o.Type;
if (o.Type == TypeString)
{
::new(&pointer) FString(*(FString *)&o.pointer);
}
else
{
memcpy(&Float, &o.Float, 8);
}
return *this;
}
int GetInt() const
{
int regtype = Type->GetRegType();
return regtype == REGT_INT ? Int : regtype == REGT_FLOAT ? int(Float) : 0;
}
unsigned GetUInt() const
{
int regtype = Type->GetRegType();
return regtype == REGT_INT ? unsigned(Int) : regtype == REGT_FLOAT ? unsigned(Float) : 0;
}
double GetFloat() const
{
int regtype = Type->GetRegType();
return regtype == REGT_INT ? (Type == TypeUInt32? double(unsigned(Int)) : double(Int)) : regtype == REGT_FLOAT ? Float : 0;
}
void *GetPointer() const
{
int regtype = Type->GetRegType();
return regtype == REGT_POINTER ? pointer : nullptr;
}
const FString GetString() const
{
return Type == TypeString ? *(FString *)&pointer : Type == TypeName ? FString(FName(ENamedName(Int)).GetChars()) : FString();
}
bool GetBool() const
{
int regtype = Type->GetRegType();
return regtype == REGT_INT ? !!Int : regtype == REGT_FLOAT ? Float!=0. : false;
}
FName GetName() const
{
if (Type == TypeString)
{
if (((FString *)&pointer)->Len() == 0) return NAME_None;
return FName(*(FString *)&pointer);
}
return Type == TypeName ? ENamedName(Int) : NAME_None;
}
};
enum EFxType
{
EFX_Expression,
EFX_Identifier,
EFX_MemberIdentifier,
EFX_ClassDefaults,
EFX_Constant,
EFX_BoolCast,
EFX_IntCast,
EFX_FloatCast,
EFX_NameCast,
EFX_StringCast,
EFX_ColorCast,
EFX_SoundCast,
EFX_TypeCast,
EFX_PlusSign,
EFX_MinusSign,
EFX_UnaryNotBitwise,
EFX_UnaryNotBoolean,
EFX_SizeAlign,
EFX_PreIncrDecr,
EFX_PostIncrDecr,
EFX_Assign,
EFX_AssignSelf,
EFX_Binary, // one token fits all, the operator is enough to distinguish them.
EFX_BinaryLogical,
EFX_DotCross,
EFX_Conditional,
EFX_Abs,
EFX_ATan2,
EFX_New,
EFX_MinMax,
EFX_Random,
EFX_RandomPick,
EFX_FRandom,
EFX_Random2,
EFX_ClassMember,
EFX_StructMember,
EFX_LocalVariable,
EFX_Self,
EFX_ArrayElement,
EFX_FunctionCall,
EFX_MemberFunctionCall,
EFX_ActionSpecialCall,
EFX_FlopFunctionCall,
EFX_VMFunctionCall,
EFX_Sequence,
EFX_CompoundStatement,
EFX_IfStatement,
EFX_LoopStatement,
EFX_WhileLoop,
EFX_DoWhileLoop,
EFX_ForLoop,
EFX_JumpStatement,
EFX_ReturnStatement,
EFX_ClassTypeCast,
EFX_ClassPtrCast,
EFX_StateByIndex,
EFX_RuntimeStateIndex,
EFX_MultiNameState,
EFX_DamageValue,
EFX_Nop,
EFX_LocalVariableDeclaration,
EFX_SwitchStatement,
EFX_CaseStatement,
EFX_VectorValue,
EFX_VectorBuiltin,
EFX_TypeCheck,
EFX_DynamicCast,
EFX_GlobalVariable,
EFX_Super,
EFX_StackVariable,
EFX_MultiAssign,
EFX_StaticArray,
EFX_StaticArrayVariable,
EFX_CVar,
EFX_NamedNode,
EFX_GetClass,
EFX_GetParentClass,
EFX_GetClassName,
EFX_StrLen,
EFX_ColorLiteral,
EFX_GetDefaultByType,
EFX_FontCast,
EFX_LocalArrayDeclaration,
EFX_OutVarDereference,
EFX_COUNT
};
//==========================================================================
//
//
//
//==========================================================================
class FxExpression
{
protected:
FxExpression(EFxType type, const FScriptPosition &pos)
: ScriptPosition(pos), ExprType(type)
{
}
public:
virtual ~FxExpression() {}
virtual FxExpression *Resolve(FCompileContext &ctx);
virtual bool isConstant() const;
virtual bool RequestAddress(FCompileContext &ctx, bool *writable);
virtual PPrototype *ReturnProto();
virtual VMFunction *GetDirectFunction(PFunction *func, const VersionInfo &ver);
virtual bool CheckReturn() { return false; }
virtual int GetBitValue() { return -1; }
bool IsNumeric() const { return ValueType->isNumeric(); }
bool IsFloat() const { return ValueType->isFloat(); }
bool IsInteger() const { return ValueType->isNumeric() && ValueType->isIntCompatible(); }
bool IsPointer() const { return ValueType->isPointer(); }
bool IsVector() const { return ValueType == TypeVector2 || ValueType == TypeVector3; };
bool IsBoolCompat() const { return ValueType->isScalar(); }
bool IsObject() const { return ValueType->isObjectPointer(); }
bool IsArray() const { return ValueType->isArray() || (ValueType->isPointer() && ValueType->toPointer()->PointedType->isArray()); }
bool isStaticArray() const { return (ValueType->isPointer() && ValueType->toPointer()->PointedType->isStaticArray()); } // can only exist in pointer form.
bool IsDynamicArray() const { return (ValueType->isDynArray()); }
bool IsNativeStruct() const { return (ValueType->isStruct() && static_cast<PStruct*>(ValueType)->isNative); }
virtual ExpEmit Emit(VMFunctionBuilder *build);
void EmitStatement(VMFunctionBuilder *build);
virtual void EmitCompare(VMFunctionBuilder *build, bool invert, TArray<size_t> &patchspots_yes, TArray<size_t> &patchspots_no);
FScriptPosition ScriptPosition;
PType *ValueType = nullptr;
bool isresolved = false;
bool NeedResult = true; // should be set to false if not needed and properly handled by all nodes for their subnodes to eliminate redundant code
EFxType ExprType;
void *operator new(size_t size)
{
return FxAlloc.Alloc(size);
}
void operator delete(void *block) {}
void operator delete[](void *block) {}
};
//==========================================================================
//
// FxIdentifier
//
//==========================================================================
class FxIdentifier : public FxExpression
{
public:
FName Identifier = NAME_None;
bool noglobal = false;
FxIdentifier(FName i, const FScriptPosition &p);
FxExpression *Resolve(FCompileContext&);
FxExpression *ResolveMember(FCompileContext&, PContainerType*, FxExpression*&, PContainerType*);
};
//==========================================================================
//
// FxMemberIdentifier
//
//==========================================================================
class FxMemberIdentifier : public FxIdentifier
{
FxExpression *Object;
public:
FxMemberIdentifier(FxExpression *obj, FName i, const FScriptPosition &p);
~FxMemberIdentifier();
FxExpression *Resolve(FCompileContext&);
};
//==========================================================================
//
// FxConstant
//
//==========================================================================
class FxConstant : public FxExpression
{
ExpVal value;
public:
FxConstant(bool val, const FScriptPosition &pos) : FxExpression(EFX_Constant, pos)
{
ValueType = value.Type = TypeBool;
value.Int = val;
isresolved = true;
}
FxConstant(int val, const FScriptPosition &pos) : FxExpression(EFX_Constant, pos)
{
ValueType = value.Type = TypeSInt32;
value.Int = val;
isresolved = true;
}
FxConstant(unsigned int val, const FScriptPosition &pos) : FxExpression(EFX_Constant, pos)
{
ValueType = value.Type = TypeUInt32;
value.Int = val;
isresolved = true;
}
FxConstant(double val, const FScriptPosition &pos) : FxExpression(EFX_Constant, pos)
{
ValueType = value.Type = TypeFloat64;
value.Float = val;
isresolved = true;
}
FxConstant(FSoundID val, const FScriptPosition &pos) : FxExpression(EFX_Constant, pos)
{
ValueType = value.Type = TypeSound;
value.Int = val;
isresolved = true;
}
FxConstant(FName val, const FScriptPosition &pos) : FxExpression(EFX_Constant, pos)
{
ValueType = value.Type = TypeName;
value.Int = val.GetIndex();
isresolved = true;
}
FxConstant(const FString &str, const FScriptPosition &pos) : FxExpression(EFX_Constant, pos)
{
ValueType = TypeString;
value = ExpVal(str);
isresolved = true;
}
FxConstant(ExpVal cv, const FScriptPosition &pos) : FxExpression(EFX_Constant, pos)
{
value = cv;
ValueType = cv.Type;
isresolved = true;
}
FxConstant(PClass *val, PClassPointer *valtype, const FScriptPosition &pos) : FxExpression(EFX_Constant, pos)
{
value.pointer = (void*)val;
value.Type = ValueType = valtype;
isresolved = true;
}
FxConstant(FState *state, const FScriptPosition &pos) : FxExpression(EFX_Constant, pos)
{
value.pointer = state;
ValueType = value.Type = TypeState;
isresolved = true;
}
FxConstant(FFont *state, const FScriptPosition &pos) : FxExpression(EFX_Constant, pos)
{
value.pointer = state;
ValueType = value.Type = TypeFont;
isresolved = true;
}
FxConstant(void *state, const FScriptPosition &pos) : FxExpression(EFX_Constant, pos)
{
value.pointer = state;
ValueType = value.Type = TypeVoidPtr;
isresolved = true;
}
FxConstant(const FScriptPosition &pos) : FxExpression(EFX_Constant, pos)
{
value.pointer = nullptr;
ValueType = value.Type = TypeNullPtr;
isresolved = true;
}
FxConstant(PType *type, TypedVMValue &vmval, const FScriptPosition &pos) : FxExpression(EFX_Constant, pos)
{
isresolved = true;
switch (vmval.Type)
{
default:
case REGT_INT:
value.Int = vmval.i;
break;
case REGT_FLOAT:
value.Float = vmval.f;
break;
case REGT_STRING:
new(&value) ExpVal(vmval.s());
break;
case REGT_POINTER:
value.pointer = vmval.a;
break;
}
ValueType = value.Type = type;
}
static FxExpression *MakeConstant(PSymbol *sym, const FScriptPosition &pos);
bool isConstant() const
{
return true;
}
ExpVal GetValue() const
{
return value;
}
ExpEmit Emit(VMFunctionBuilder *build);
};
//==========================================================================
//
//
//
//==========================================================================
class FxVectorValue : public FxExpression
{
FxExpression *xyz[3];
bool isConst; // gets set to true if all element are const (used by function defaults parser)
public:
friend class ZCCCompiler;
FxVectorValue(FxExpression *x, FxExpression *y, FxExpression *z, const FScriptPosition &sc);
~FxVectorValue();
FxExpression *Resolve(FCompileContext&);
bool isConstVector(int dim)
{
if (!isConst) return false;
return dim == 2 ? xyz[2] == nullptr : xyz[2] != nullptr;
}
ExpEmit Emit(VMFunctionBuilder *build);
};
//==========================================================================
//
//
//
//==========================================================================
class FxBoolCast : public FxExpression
{
FxExpression *basex;
bool NeedValue;
public:
FxBoolCast(FxExpression *x, bool needvalue = true);
~FxBoolCast();
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
void EmitCompare(VMFunctionBuilder *build, bool invert, TArray<size_t> &patchspots_yes, TArray<size_t> &patchspots_no);
};
class FxIntCast : public FxExpression
{
FxExpression *basex;
bool NoWarn;
bool Explicit;
public:
FxIntCast(FxExpression *x, bool nowarn, bool explicitly = false, bool isunsigned = false);
~FxIntCast();
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
};
class FxFloatCast : public FxExpression
{
FxExpression *basex;
public:
FxFloatCast(FxExpression *x);
~FxFloatCast();
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
};
class FxNameCast : public FxExpression
{
FxExpression *basex;
bool mExplicit;
public:
FxNameCast(FxExpression *x, bool explicitly = false);
~FxNameCast();
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
};
class FxStringCast : public FxExpression
{
FxExpression *basex;
public:
FxStringCast(FxExpression *x);
~FxStringCast();
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
};
class FxColorCast : public FxExpression
{
FxExpression *basex;
public:
FxColorCast(FxExpression *x);
~FxColorCast();
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
};
class FxSoundCast : public FxExpression
{
FxExpression *basex;
public:
FxSoundCast(FxExpression *x);
~FxSoundCast();
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
};
class FxFontCast : public FxExpression
{
FxExpression *basex;
public:
FxFontCast(FxExpression *x);
~FxFontCast();
FxExpression *Resolve(FCompileContext&);
};
//==========================================================================
//
// FxTypeCast
//
//==========================================================================
class FxTypeCast : public FxExpression
{
public:
FxExpression *basex;
bool NoWarn;
bool Explicit;
FxTypeCast(FxExpression *x, PType *type, bool nowarn, bool explicitly = false);
~FxTypeCast();
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
};
//==========================================================================
//
// FxSign
//
//==========================================================================
class FxPlusSign : public FxExpression
{
FxExpression *Operand;
public:
FxPlusSign(FxExpression*);
~FxPlusSign();
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
};
//==========================================================================
//
// FxSign
//
//==========================================================================
class FxMinusSign : public FxExpression
{
FxExpression *Operand;
public:
FxMinusSign(FxExpression*);
~FxMinusSign();
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
};
//==========================================================================
//
// FxUnaryNot
//
//==========================================================================
class FxUnaryNotBitwise : public FxExpression
{
FxExpression *Operand;
public:
FxUnaryNotBitwise(FxExpression*);
~FxUnaryNotBitwise();
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
};
//==========================================================================
//
// FxUnaryNot
//
//==========================================================================
class FxUnaryNotBoolean : public FxExpression
{
FxExpression *Operand;
public:
FxUnaryNotBoolean(FxExpression*);
~FxUnaryNotBoolean();
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
void EmitCompare(VMFunctionBuilder *build, bool invert, TArray<size_t> &patchspots_yes, TArray<size_t> &patchspots_no);
};
//==========================================================================
//
// FxSign
//
//==========================================================================
class FxSizeAlign : public FxExpression
{
FxExpression *Operand;
int Which;
public:
FxSizeAlign(FxExpression*, int which);
~FxSizeAlign();
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
};
//==========================================================================
//
// FxPreIncrDecr
//
//==========================================================================
class FxPreIncrDecr : public FxExpression
{
int Token;
FxExpression *Base;
bool AddressRequested;
bool AddressWritable;
public:
FxPreIncrDecr(FxExpression *base, int token);
~FxPreIncrDecr();
FxExpression *Resolve(FCompileContext&);
bool RequestAddress(FCompileContext &ctx, bool *writable);
ExpEmit Emit(VMFunctionBuilder *build);
};
//==========================================================================
//
// FxPostIncrDecr
//
//==========================================================================
class FxPostIncrDecr : public FxExpression
{
int Token;
FxExpression *Base;
public:
FxPostIncrDecr(FxExpression *base, int token);
~FxPostIncrDecr();
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
};
//==========================================================================
//
// FxAssign
//
//==========================================================================
class FxAssign : public FxExpression
{
FxExpression *Base;
FxExpression *Right;
int IsBitWrite;
bool AddressRequested;
bool AddressWritable;
bool IsModifyAssign;
friend class FxAssignSelf;
public:
FxAssign(FxExpression *base, FxExpression *right, bool ismodify = false);
~FxAssign();
FxExpression *Resolve(FCompileContext&);
//bool RequestAddress(FCompileContext &ctx, bool *writable);
ExpEmit Emit(VMFunctionBuilder *build);
ExpEmit Address;
};
//==========================================================================
//
// FxAssign
//
//==========================================================================
class FxCompoundStatement;
class FxMultiAssign : public FxExpression
{
FxCompoundStatement *LocalVarContainer; // for handling the temporary variables of the results, which may need type casts.
FArgumentList Base;
FxExpression *Right;
bool AddressRequested = false;
bool AddressWritable = false;
public:
FxMultiAssign(FArgumentList &base, FxExpression *right, const FScriptPosition &pos);
~FxMultiAssign();
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
};
//==========================================================================
//
// FxAssignSelf
//
//==========================================================================
class FxAssignSelf : public FxExpression
{
public:
FxAssign *Assignment;
FxAssignSelf(const FScriptPosition &pos);
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
};
//==========================================================================
//
// FxBinary
//
//==========================================================================
class FxBinary : public FxExpression
{
public:
int Operator;
FxExpression *left;
FxExpression *right;
FxBinary(int, FxExpression*, FxExpression*);
~FxBinary();
bool Promote(FCompileContext &ctx, bool forceint = false);
};
//==========================================================================
//
// FxBinary
//
//==========================================================================
class FxAddSub : public FxBinary
{
public:
FxAddSub(int, FxExpression*, FxExpression*);
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
};
//==========================================================================
//
// FxBinary
//
//==========================================================================
class FxMulDiv : public FxBinary
{
public:
FxMulDiv(int, FxExpression*, FxExpression*);
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
};
//==========================================================================
//
// FxBinary
//
//==========================================================================
class FxPow : public FxBinary
{
public:
FxPow(FxExpression*, FxExpression*);
FxExpression *Resolve(FCompileContext&);
ExpEmit Emit(VMFunctionBuilder *build);
};
//==========================================================================
//
// FxBinary
//
//==========================================================================
class FxCompareRel : public FxBinary
{
PType *CompareType;
public:
FxCompareRel(int, FxExpression*, FxExpression*);
FxExpression *Resolve(FCompileContext&);
ExpEmit EmitCommon(VMFunctionBuilder *build, bool forcompare, bool invert);
ExpEmit Emit(VMFunctionBuilder *build);
void EmitCompare(VMFunctionBuilder *build, bool invert, TArray<size_t> &patchspots_yes, TArray<size_t> &patchspots_no);
};
//==========================================================================
//
// FxBinary
//
//==========================================================================
class FxCompareEq : public FxBinary
{
public:
FxCompareEq(int, FxExpression*, FxExpression*);
FxExpression *Resolve(FCompileContext&);
ExpEmit EmitCommon(VMFunctionBuilder *build, bool forcompare, bool invert);
ExpEmit Emit(VMFunctionBuilder *build);
void EmitCompare(VMFunctionBuilder *build, bool invert, TArray<size_t> &patchspots_yes, TArray<size_t> &patchspots_no);
};
//==========================================================================
//
// FxBinary
//
//==========================================================================
class FxBitOp : public FxBinary
{