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PyrParseNode.h
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PyrParseNode.h
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/*
SuperCollider real time audio synthesis system
Copyright (c) 2002 James McCartney. All rights reserved.
http://www.audiosynth.com
This program is free software; you can redistribute it and/or modify
it under 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 program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include "PyrSlot.h"
#include "PyrKernel.h"
#include "ByteCodeArray.h"
#include "Opcodes.h"
#include "AdvancingAllocPool.h"
enum { rwPrivate = 0, rwReadOnly = 1, rwWriteOnly = 2, rwReadWrite = 3 };
enum { varInst, varClass, varTemp, varConst, varPseudo, varLocal };
enum {
/* structural units */
pn_ClassNode,
pn_ClassExtNode,
pn_MethodNode,
pn_BlockNode,
pn_SlotNode,
/* variable declarations */
pn_VarListNode,
pn_VarDefNode,
pn_DynDictNode,
pn_DynListNode,
pn_LitListNode,
pn_LitDictNode,
pn_StaticVarListNode,
pn_InstVarListNode,
pn_PoolVarListNode,
pn_ArgListNode,
pn_SlotDefNode,
/* selectors */
pn_LiteralNode,
/* code */
pn_PushLitNode,
pn_PushNameNode,
pn_PushKeyArgNode,
pn_CallNode,
pn_BinopCallNode,
pn_DropNode,
pn_AssignNode,
pn_MultiAssignNode,
pn_MultiAssignVarListNode,
pn_SetterNode,
pn_CurryArgNode,
pn_ReturnNode,
pn_BlockReturnNode,
pn_NumTypes
};
extern AdvancingAllocPool gParseNodePool;
#define ALLOCNODE(type) (new (gParseNodePool.Alloc(sizeof(type))) type())
#define ALLOCSLOTNODE(type, classno) (new (gParseNodePool.Alloc(sizeof(type))) type(classno))
#define COMPILENODE(node, result, onTailBranch) (compileNode((node), (result), (onTailBranch)))
#define DUMPNODE(node, level) \
do { \
if (node) \
(node)->dump(level); \
} while (false);
struct PyrParseNode {
PyrParseNode(int classno);
virtual ~PyrParseNode() {}
virtual void compile(PyrSlot* result) = 0;
virtual void dump(int level) = 0;
struct PyrParseNode* mNext;
struct PyrParseNode* mTail;
int mLineno;
int mCharno;
unsigned char mClassno;
unsigned char mParens;
};
struct PyrSlotNode : public PyrParseNode {
PyrSlotNode(): PyrParseNode(pn_SlotNode) {}
PyrSlotNode(int classno): PyrParseNode(classno) {}
virtual ~PyrSlotNode() {}
virtual void compile(PyrSlot* result);
virtual void compileLiteral(PyrSlot* result);
virtual void compilePushLit(PyrSlot* result);
virtual void dump(int level);
virtual void dumpLiteral(int level);
virtual void dumpPushLit(int level);
PyrSlot mSlot;
};
typedef PyrSlotNode PyrLiteralNode;
typedef PyrSlotNode PyrPushLitNode;
typedef PyrSlotNode PyrPushNameNode;
struct PyrCurryArgNode : public PyrParseNode {
PyrCurryArgNode(): PyrParseNode(pn_CurryArgNode), mArgNum(-1) {}
virtual ~PyrCurryArgNode() {}
virtual void compile(PyrSlot* result);
virtual void dump(int level);
int mArgNum;
};
struct PyrClassExtNode : public PyrParseNode {
PyrClassExtNode(): PyrParseNode(pn_ClassExtNode) {}
virtual ~PyrClassExtNode() {}
virtual void compile(PyrSlot* result);
virtual void dump(int level);
struct PyrSlotNode* mClassName;
struct PyrMethodNode* mMethods;
};
struct PyrClassNode : public PyrParseNode {
PyrClassNode(): PyrParseNode(pn_ClassNode) {}
virtual ~PyrClassNode() {}
virtual void compile(PyrSlot* result);
virtual void dump(int level);
struct PyrSlotNode* mClassName;
struct PyrSlotNode* mSuperClassName;
struct PyrSlotNode* mIndexType;
struct PyrVarListNode* mVarlists;
struct PyrMethodNode* mMethods;
int mVarTally[4];
int mNumSuperInstVars;
};
struct PyrMethodNode : public PyrParseNode {
PyrMethodNode(): PyrParseNode(pn_MethodNode) {}
virtual ~PyrMethodNode() {}
virtual void compile(PyrSlot* result);
virtual void dump(int level);
struct PyrSlotNode* mMethodName;
struct PyrSlotNode* mPrimitiveName;
struct PyrArgListNode* mArglist;
struct PyrVarListNode* mVarlist;
struct PyrParseNode* mBody;
int mIsClassMethod; // is class method?
bool mExtension;
};
struct PyrVarListNode : public PyrParseNode {
PyrVarListNode(): PyrParseNode(pn_VarListNode) {}
virtual ~PyrVarListNode() {}
virtual void compile(PyrSlot* result);
virtual void dump(int level);
struct PyrVarDefNode* mVarDefs;
int mFlags;
};
struct PyrVarDefNode : public PyrParseNode {
PyrVarDefNode(): PyrParseNode(pn_VarDefNode) {}
virtual ~PyrVarDefNode() {}
virtual void compile(PyrSlot* result);
virtual void compileArg(PyrSlot* result);
virtual void dump(int level);
bool hasExpr(PyrSlot* result);
struct PyrSlotNode* mVarName;
PyrParseNode* mDefVal;
int mFlags;
bool mDrop;
};
struct PyrCallNodeBase : public PyrParseNode {
PyrCallNodeBase(int classno): PyrParseNode(classno) {}
virtual ~PyrCallNodeBase() {}
virtual void compile(PyrSlot* result);
virtual void compilePartialApplication(int numCurryArgs, PyrSlot* result);
virtual void compileCall(PyrSlot* result) = 0;
virtual int isPartialApplication() = 0;
};
struct PyrCallNodeBase2 : public PyrCallNodeBase {
PyrCallNodeBase2(int classno): PyrCallNodeBase(classno) {}
virtual ~PyrCallNodeBase2() {}
struct PyrSlotNode* mSelector;
struct PyrParseNode* mArglist;
struct PyrParseNode* mKeyarglist;
bool mTailCall;
};
struct PyrCallNode : public PyrCallNodeBase2 {
PyrCallNode(): PyrCallNodeBase2(pn_CallNode) {}
virtual ~PyrCallNode() {}
virtual void compileCall(PyrSlot* result);
virtual void dump(int level);
virtual int isPartialApplication();
};
struct PyrBinopCallNode : public PyrCallNodeBase2 {
PyrBinopCallNode(): PyrCallNodeBase2(pn_BinopCallNode) {}
virtual ~PyrBinopCallNode() {}
virtual void compileCall(PyrSlot* result);
virtual void dump(int level);
virtual int isPartialApplication();
};
struct PyrSetterNode : public PyrCallNodeBase {
PyrSetterNode(): PyrCallNodeBase(pn_SetterNode) {}
virtual ~PyrSetterNode() {}
virtual void compileCall(PyrSlot* result);
virtual void dump(int level);
virtual int isPartialApplication();
struct PyrSlotNode* mSelector;
struct PyrParseNode* mExpr1;
struct PyrParseNode* mExpr2;
int mFlags; // is a var def ?
};
struct PyrDynListNode : public PyrCallNodeBase {
PyrDynListNode(): PyrCallNodeBase(pn_DynListNode) {}
virtual ~PyrDynListNode() {}
virtual void compileCall(PyrSlot* result);
virtual void dump(int level);
virtual int isPartialApplication();
struct PyrParseNode* mClassname;
struct PyrParseNode* mElems;
};
struct PyrDynDictNode : public PyrCallNodeBase {
PyrDynDictNode(): PyrCallNodeBase(pn_DynDictNode) {}
virtual ~PyrDynDictNode() {}
virtual void compileCall(PyrSlot* result);
virtual void dump(int level);
virtual int isPartialApplication();
struct PyrParseNode* mElems;
};
struct PyrDropNode : public PyrParseNode {
PyrDropNode(): PyrParseNode(pn_DropNode) {}
virtual ~PyrDropNode() {}
virtual void compile(PyrSlot* result);
virtual void dump(int level);
struct PyrParseNode* mExpr1;
struct PyrParseNode* mExpr2;
};
struct PyrPushKeyArgNode : public PyrParseNode {
PyrPushKeyArgNode(): PyrParseNode(pn_PushKeyArgNode) {}
virtual ~PyrPushKeyArgNode() {}
virtual void compile(PyrSlot* result);
virtual void dump(int level);
struct PyrSlotNode* mSelector;
struct PyrParseNode* mExpr;
};
struct PyrReturnNode : public PyrParseNode {
PyrReturnNode(): PyrParseNode(pn_ReturnNode) {}
virtual ~PyrReturnNode() {}
virtual void compile(PyrSlot* result);
virtual void dump(int level);
struct PyrParseNode* mExpr; // if null, return self
};
struct PyrBlockReturnNode : public PyrParseNode {
PyrBlockReturnNode(): PyrParseNode(pn_BlockReturnNode) {}
virtual ~PyrBlockReturnNode() {}
virtual void compile(PyrSlot* result);
virtual void dump(int level);
struct PyrParseNode* mExpr; // if null, return self
};
struct PyrAssignNode : public PyrParseNode {
PyrAssignNode(): PyrParseNode(pn_AssignNode) {}
virtual ~PyrAssignNode() {}
virtual void compile(PyrSlot* result);
virtual void dump(int level);
struct PyrSlotNode* mVarName;
struct PyrParseNode* mExpr;
bool mDrop; // allow drop
};
struct PyrMultiAssignNode : public PyrParseNode {
PyrMultiAssignNode(): PyrParseNode(pn_MultiAssignNode) {}
virtual ~PyrMultiAssignNode() {}
virtual void compile(PyrSlot* result);
virtual void dump(int level);
struct PyrMultiAssignVarListNode* mVarList;
struct PyrParseNode* mExpr;
bool mDrop; // allow drop
};
struct PyrMultiAssignVarListNode : public PyrParseNode {
PyrMultiAssignVarListNode(): PyrParseNode(pn_MultiAssignVarListNode) {}
virtual ~PyrMultiAssignVarListNode() {}
virtual void compile(PyrSlot* result);
virtual void dump(int level);
struct PyrSlotNode* mVarNames;
struct PyrSlotNode* mRest;
};
struct PyrBlockNode : public PyrParseNode {
PyrBlockNode(): PyrParseNode(pn_BlockNode) {}
virtual ~PyrBlockNode() {}
virtual void compile(PyrSlot* result);
virtual void dump(int level);
struct PyrArgListNode* mArglist;
struct PyrVarListNode* mVarlist;
struct PyrParseNode* mBody;
bool mIsTopLevel;
int mBeginCharNo;
};
struct PyrArgListNode : public PyrParseNode {
PyrArgListNode(): PyrParseNode(pn_ArgListNode) {}
virtual ~PyrArgListNode() {}
virtual void compile(PyrSlot* result);
virtual void dump(int level);
struct PyrVarDefNode* mVarDefs;
struct PyrSlotNode* mRest;
};
struct PyrLitListNode : public PyrParseNode {
PyrLitListNode(): PyrParseNode(pn_LitListNode) {}
virtual ~PyrLitListNode() {}
virtual void compile(PyrSlot* result);
virtual void dump(int level);
struct PyrParseNode* mClassname;
struct PyrParseNode* mElems;
};
struct PyrLitDictNode : public PyrParseNode {
PyrLitDictNode(): PyrParseNode(pn_LitDictNode) {}
virtual ~PyrLitDictNode() {}
virtual void compile(PyrSlot* result);
virtual void dump(int level);
struct PyrParseNode* mElems;
};
extern PyrParseNode* gRootParseNode;
extern intptr_t gParserResult;
extern bool gIsTailCodeBranch;
extern bool gTailIsMethodReturn;
extern bool compilingCmdLine;
extern const char* nodename[];
void compileNode(PyrParseNode* node, PyrSlot* result, bool onTailBranch);
class SetTailBranch {
bool mSave;
public:
SetTailBranch(bool inValue) {
mSave = gIsTailCodeBranch;
gIsTailCodeBranch = inValue;
}
~SetTailBranch() { gIsTailCodeBranch = mSave; }
};
class SetTailIsMethodReturn {
bool mSave;
public:
SetTailIsMethodReturn(bool inValue) {
mSave = gTailIsMethodReturn;
gTailIsMethodReturn = inValue;
}
~SetTailIsMethodReturn() { gTailIsMethodReturn = mSave; }
};
inline void compileNode(PyrParseNode* node, PyrSlot* result, bool onTailBranch) {
SetTailBranch branch(gIsTailCodeBranch && onTailBranch);
/*if (compilingCmdLine) {
printf("stb %14s %d %d\n", nodename[node->mClassno], onTailBranch, gIsTailCodeBranch);
}*/
node->compile(result);
}
void initParseNodes();
PyrSlotNode* newPyrSlotNode(PyrSlot* slot);
PyrCurryArgNode* newPyrCurryArgNode();
PyrClassNode* newPyrClassNode(PyrSlotNode* className, PyrSlotNode* superClassName, PyrVarListNode* varlists,
PyrMethodNode* methods, PyrSlotNode* indexType);
PyrClassExtNode* newPyrClassExtNode(PyrSlotNode* className, PyrMethodNode* methods);
PyrMethodNode* newPyrMethodNode(PyrSlotNode* methodName, PyrSlotNode* primitiveName, PyrArgListNode* arglist,
PyrVarListNode* varlist, PyrParseNode* body, int isClassMethod);
PyrArgListNode* newPyrArgListNode(PyrVarDefNode* varDefs, PyrSlotNode* rest);
PyrVarListNode* newPyrVarListNode(PyrVarDefNode* vardefs, int flags);
PyrVarDefNode* newPyrVarDefNode(PyrSlotNode* varName, PyrParseNode* defVal, int flags);
PyrCallNode* newPyrCallNode(PyrSlotNode* selector, PyrParseNode* arglist, PyrParseNode* keyarglist,
PyrParseNode* blocklist);
PyrBinopCallNode* newPyrBinopCallNode(PyrSlotNode* selector, PyrParseNode* arg1, PyrParseNode* arg2,
PyrParseNode* arg3);
PyrDropNode* newPyrDropNode(PyrParseNode* expr1, PyrParseNode* expr2);
PyrPushKeyArgNode* newPyrPushKeyArgNode(PyrSlotNode* selector, PyrParseNode* expr);
PyrPushLitNode* newPyrPushLitNode(PyrSlotNode* literalSlot, PyrParseNode* literalObj);
PyrLiteralNode* newPyrLiteralNode(PyrSlotNode* literalSlot, PyrParseNode* literalObj);
PyrReturnNode* newPyrReturnNode(PyrParseNode* expr);
PyrBlockReturnNode* newPyrBlockReturnNode();
PyrAssignNode* newPyrAssignNode(PyrSlotNode* varName, PyrParseNode* expr, int flags);
PyrSetterNode* newPyrSetterNode(PyrSlotNode* varName, PyrParseNode* expr1, PyrParseNode* expr2);
PyrMultiAssignNode* newPyrMultiAssignNode(PyrMultiAssignVarListNode* varList, PyrParseNode* expr, int flags);
PyrPushNameNode* newPyrPushNameNode(PyrSlotNode* slotNode);
PyrDynDictNode* newPyrDynDictNode(PyrParseNode* elems);
PyrDynListNode* newPyrDynListNode(PyrParseNode* classname, PyrParseNode* elems);
PyrLitListNode* newPyrLitListNode(PyrParseNode* classname, PyrParseNode* elems);
PyrLitDictNode* newPyrLitDictNode(PyrParseNode* elems);
PyrMultiAssignVarListNode* newPyrMultiAssignVarListNode(PyrSlotNode* varNames, PyrSlotNode* rest);
PyrBlockNode* newPyrBlockNode(PyrArgListNode* arglist, PyrVarListNode* varlist, PyrParseNode* body, bool isTopLevel);
void compilePyrMethodNode(PyrMethodNode* node, PyrSlot* result);
void compilePyrLiteralNode(PyrLiteralNode* node, PyrSlot* result);
PyrClass* getNodeSuperclass(PyrClassNode* node);
void countNodeMethods(PyrClassNode* node, int* numClassMethods, int* numInstMethods);
void compileExtNodeMethods(PyrClassExtNode* node);
void countVarDefs(PyrClassNode* node);
bool compareVarDefs(PyrClassNode* node, PyrClass* classobj);
void recompileSubclasses(PyrClass* classobj);
void compileNodeMethods(PyrClassNode* node);
void fillClassPrototypes(PyrClassNode* node, PyrClass* classobj, PyrClass* superclassobj);
int nodeListLength(PyrParseNode* node);
bool isSuperObjNode(PyrParseNode* node);
bool isThisObjNode(PyrParseNode* node);
int conjureSelectorIndex(PyrParseNode* node, PyrBlock* func, bool isSuper, PyrSymbol* selector, int* selType);
int conjureLiteralSlotIndex(PyrParseNode* node, PyrBlock* func, PyrSlot* slot);
bool findVarName(PyrBlock* func, PyrClass** classobj, PyrSymbol* name, int* varType, int* level, int* index,
PyrBlock** tempfunc);
void countClassVarDefs(PyrClassNode* node, int* numClassMethods, int* numInstMethods);
void compileNodeList(PyrParseNode* node, bool onTailBranch);
void dumpNodeList(PyrParseNode* node);
int compareCallArgs(PyrMethodNode* node, PyrCallNode* cnode, int* varIndex, PyrClass* specialClass);
bool findSpecialClassName(PyrSymbol* className, int* index);
int getIndexType(PyrClassNode* classnode);
void compileAnyIfMsg(PyrCallNodeBase2* node);
void compileIfMsg(PyrCallNodeBase2* node);
void compileIfNilMsg(PyrCallNodeBase2* node, bool flag);
void compileCaseMsg(PyrCallNodeBase2* node);
void compileWhileMsg(PyrCallNodeBase2* node);
void compileLoopMsg(PyrCallNodeBase2* node);
void compileAndMsg(PyrParseNode* arg1, PyrParseNode* arg2);
void compileOrMsg(PyrParseNode* arg1, PyrParseNode* arg2);
void compileQMsg(PyrParseNode* arg1, PyrParseNode* arg2);
void compileQQMsg(PyrParseNode* arg1, PyrParseNode* arg2);
void compileXQMsg(PyrParseNode* arg1, PyrParseNode* arg2);
void compileSwitchMsg(PyrCallNode* node);
void compilePushInt(int value);
void compileAssignVar(PyrParseNode* node, PyrSymbol* varName, bool drop);
void compilePushVar(PyrParseNode* node, PyrSymbol* varName);
bool isAnInlineableBlock(PyrParseNode* node);
bool isAnInlineableAtomicLiteralBlock(PyrParseNode* node);
bool isAtomicLiteral(PyrParseNode* node);
bool isWhileTrue(PyrParseNode* node);
void installByteCodes(PyrBlock* block);
ByteCodes compileSubExpression(PyrPushLitNode* litnode, bool onTailBranch);
ByteCodes compileSubExpressionWithGoto(PyrPushLitNode* litnode, int branchLen, bool onTailBranch);
ByteCodes compileBodyWithGoto(PyrParseNode* body, int branchLen, bool onTailBranch);
// ByteCodes compileDefaultValue(int litIndex, int realExprLen);
void initParser();
void finiParser();
void initParserPool();
void freeParserPool();
void initSpecialSelectors();
void initSpecialClasses();
void nodePostErrorLine(PyrParseNode* node);
PyrParseNode* linkNextNode(PyrParseNode* a, PyrParseNode* b);
PyrParseNode* linkAfterHead(PyrParseNode* a, PyrParseNode* b);
extern int compileErrors;
extern int numOverwrites;
extern std::string overwriteMsg;
extern intptr_t zzval;
extern PyrSymbol* ps_newlist;
extern PyrSymbol* gSpecialUnarySelectors[opNumUnarySelectors];
extern PyrSymbol* gSpecialBinarySelectors[opNumBinarySelectors];
extern PyrSymbol* gSpecialSelectors[opmNumSpecialSelectors];
extern PyrSymbol* gSpecialClasses[op_NumSpecialClasses];
extern PyrClass* gCurrentClass;
extern PyrClass* gCurrentMetaClass;
extern PyrClass* gCompilingClass;
extern PyrMethod* gCompilingMethod;
extern PyrBlock* gCompilingBlock;
/*
compiling
"inlining" of special arithmetic opcodes.
inlining of IF, WHILE, AND, OR
*/
#define YYSTYPE intptr_t