/[svn]/linuxsampler/trunk/src/scriptvm/tree.h
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revision 2879 by schoenebeck, Tue Apr 19 14:07:53 2016 UTC revision 3260 by schoenebeck, Wed May 31 21:07:44 2017 UTC
# Line 1  Line 1 
1  /*                                                              -*- c++ -*-  /*                                                              -*- c++ -*-
2   *   *
3   * Copyright (c) 2014 - 2016 Christian Schoenebeck and Andreas Persson   * Copyright (c) 2014 - 2017 Christian Schoenebeck and Andreas Persson
4   *   *
5   * http://www.linuxsampler.org   * http://www.linuxsampler.org
6   *   *
# Line 20  Line 20 
20  #include <iostream>  #include <iostream>
21  #include <map>  #include <map>
22  #include <set>  #include <set>
23    #include <string.h> // for memset()
24  #include "../common/global.h"  #include "../common/global.h"
25  #include "../common/Ref.h"  #include "../common/Ref.h"
26  #include "../common/ArrayList.h"  #include "../common/ArrayList.h"
# Line 35  enum StmtType_t { Line 36  enum StmtType_t {
36      STMT_LIST,      STMT_LIST,
37      STMT_BRANCH,      STMT_BRANCH,
38      STMT_LOOP,      STMT_LOOP,
39        STMT_SYNC,
40  };  };
41    
42  class Node {  class Node {
# Line 63  public: Line 65  public:
65  };  };
66  typedef Ref<IntExpr,Node> IntExprRef;  typedef Ref<IntExpr,Node> IntExprRef;
67    
68    /*class IntArrayExpr : virtual public VMIntArrayExpr, virtual public Expression {
69    public:
70        ExprType_t exprType() const { return INT_ARR_EXPR; }
71        String evalCastToStr();
72    };
73    typedef Ref<IntArrayExpr,Node> IntArrayExprRef;*/
74    
75  class StringExpr : virtual public VMStringExpr, virtual public Expression {  class StringExpr : virtual public VMStringExpr, virtual public Expression {
76  public:  public:
77      ExprType_t exprType() const { return STRING_EXPR; }      ExprType_t exprType() const { return STRING_EXPR; }
# Line 98  public: Line 107  public:
107      std::vector<ExpressionRef> args;      std::vector<ExpressionRef> args;
108      void add(ExpressionRef arg) { args.push_back(arg); }      void add(ExpressionRef arg) { args.push_back(arg); }
109      void dump(int level = 0);      void dump(int level = 0);
110      int argsCount() const { return args.size(); }      int argsCount() const { return (int) args.size(); }
111      VMExpr* arg(int i) { return (i >= 0 && i < argsCount()) ? &*args.at(i) : NULL; }      VMExpr* arg(int i) { return (i >= 0 && i < argsCount()) ? &*args.at(i) : NULL; }
112      bool isPolyphonic() const;      bool isPolyphonic() const;
113  };  };
114  typedef Ref<Args,Node> ArgsRef;  typedef Ref<Args,Node> ArgsRef;
115    
116  class Variable : virtual public Expression {  class Variable : virtual public VMVariable, virtual public Expression {
117  public:  public:
118      virtual bool isConstExpr() const { return bConst; }      bool isConstExpr() const OVERRIDE { return bConst; }
119        bool isAssignable() const OVERRIDE { return !bConst; }
120      virtual void assign(Expression* expr) = 0;      virtual void assign(Expression* expr) = 0;
121        void assignExpr(VMExpr* expr) OVERRIDE { Expression* e = dynamic_cast<Expression*>(expr); if (e) assign(e); }
122  protected:  protected:
123      Variable(ParserContext* ctx, int _memPos, bool _bConst)      Variable(ParserContext* ctx, int _memPos, bool _bConst)
124          : context(ctx), memPos(_memPos), bConst(_bConst) {}          : context(ctx), memPos(_memPos), bConst(_bConst) {}
# Line 148  class BuiltInIntVariable : public IntVar Line 159  class BuiltInIntVariable : public IntVar
159      VMIntRelPtr* ptr;      VMIntRelPtr* ptr;
160  public:  public:
161      BuiltInIntVariable(const String& name, VMIntRelPtr* ptr);      BuiltInIntVariable(const String& name, VMIntRelPtr* ptr);
162      void assign(Expression* expr);      bool isAssignable() const OVERRIDE { return !ptr->readonly; }
163      int evalInt();      void assign(Expression* expr) OVERRIDE;
164      void dump(int level = 0);      int evalInt() OVERRIDE;
165        void dump(int level = 0) OVERRIDE;
166  };  };
167  typedef Ref<BuiltInIntVariable,Node> BuiltInIntVariableRef;  typedef Ref<BuiltInIntVariable,Node> BuiltInIntVariableRef;
168    
# Line 165  class IntArrayVariable : public Variable Line 177  class IntArrayVariable : public Variable
177      ArrayList<int> values;      ArrayList<int> values;
178  public:  public:
179      IntArrayVariable(ParserContext* ctx, int size);      IntArrayVariable(ParserContext* ctx, int size);
180      IntArrayVariable(ParserContext* ctx, int size, ArgsRef values);      IntArrayVariable(ParserContext* ctx, int size, ArgsRef values, bool _bConst = false);
181      void assign(Expression* expr) {} // ignore scalar assignment      void assign(Expression* expr) {} // ignore scalar assignment
182      String evalCastToStr() { return ""; } // ignore scalar cast to string      String evalCastToStr() { return ""; } // ignore scalar cast to string
183      ExprType_t exprType() const { return INT_ARR_EXPR; }      ExprType_t exprType() const { return INT_ARR_EXPR; }
# Line 186  public: Line 198  public:
198      BuiltInIntArrayVariable(const String& name, VMInt8Array* array);      BuiltInIntArrayVariable(const String& name, VMInt8Array* array);
199      int arraySize() const { return array->size; }      int arraySize() const { return array->size; }
200      int evalIntElement(uint i);      int evalIntElement(uint i);
201        bool isAssignable() const OVERRIDE { return !array->readonly; }
202      void assignIntElement(uint i, int value);      void assignIntElement(uint i, int value);
203      void dump(int level = 0);      void dump(int level = 0);
204  };  };
# Line 320  public: Line 333  public:
333      virtual Statements* branch(uint i) const = 0;      virtual Statements* branch(uint i) const = 0;
334  };  };
335    
336    class DynamicVariableCall : public Variable, virtual public IntExpr, virtual public StringExpr {
337        VMDynVar* dynVar;
338        String varName;
339    public:
340        DynamicVariableCall(const String& name, ParserContext* ctx, VMDynVar* v);
341        ExprType_t exprType() const OVERRIDE { return dynVar->exprType(); }
342        bool isConstExpr() const OVERRIDE { return dynVar->isConstExpr(); }
343        bool isAssignable() const OVERRIDE { return dynVar->isAssignable(); }
344        bool isPolyphonic() const OVERRIDE { return false; }
345        void assign(Expression* expr) OVERRIDE { dynVar->assignExpr(expr); }
346        VMIntArrayExpr* asIntArray() const OVERRIDE { return dynVar->asIntArray(); }
347        int evalInt() OVERRIDE;
348        String evalStr() OVERRIDE;
349        String evalCastToStr() OVERRIDE;
350        void dump(int level = 0) OVERRIDE;
351    };
352    typedef Ref<DynamicVariableCall,Node> DynamicVariableCallRef;
353    
354  class FunctionCall : virtual public LeafStatement, virtual public IntExpr, virtual public StringExpr {  class FunctionCall : virtual public LeafStatement, virtual public IntExpr, virtual public StringExpr {
355      String functionName;      String functionName;
356      ArgsRef args;      ArgsRef args;
# Line 327  class FunctionCall : virtual public Leaf Line 358  class FunctionCall : virtual public Leaf
358  public:  public:
359      FunctionCall(const char* function, ArgsRef args, VMFunction* fn) :      FunctionCall(const char* function, ArgsRef args, VMFunction* fn) :
360          functionName(function), args(args), fn(fn) { }          functionName(function), args(args), fn(fn) { }
361      void dump(int level = 0);      void dump(int level = 0) OVERRIDE;
362      StmtFlags_t exec();      StmtFlags_t exec() OVERRIDE;
363      int evalInt();      int evalInt() OVERRIDE;
364      String evalStr();      VMIntArrayExpr* asIntArray() const OVERRIDE;
365      bool isConstExpr() const { return false; }      String evalStr() OVERRIDE;
366      ExprType_t exprType() const;      bool isConstExpr() const OVERRIDE { return false; }
367      String evalCastToStr();      ExprType_t exprType() const OVERRIDE;
368      bool isPolyphonic() const { return args->isPolyphonic(); }      String evalCastToStr() OVERRIDE;
369        bool isPolyphonic() const OVERRIDE { return args->isPolyphonic(); }
370  protected:  protected:
371      VMFnResult* execVMFn();      VMFnResult* execVMFn();
372  };  };
# Line 394  public: Line 426  public:
426      int evalInt() { return 0; }      int evalInt() { return 0; }
427      EventHandler* eventHandlerByName(const String& name) const;      EventHandler* eventHandlerByName(const String& name) const;
428      EventHandler* eventHandler(uint index) const;      EventHandler* eventHandler(uint index) const;
429      inline uint size() const { return args.size(); }      inline uint size() const { return (int) args.size(); }
430      bool isPolyphonic() const;      bool isPolyphonic() const;
431  };  };
432  typedef Ref<EventHandlers,Node> EventHandlersRef;  typedef Ref<EventHandlers,Node> EventHandlersRef;
# Line 464  public: Line 496  public:
496      bool isPolyphonic() const { return m_condition->isPolyphonic() || m_statements->isPolyphonic(); }      bool isPolyphonic() const { return m_condition->isPolyphonic() || m_statements->isPolyphonic(); }
497  };  };
498    
499    class SyncBlock : public Statement {
500        StatementsRef m_statements;
501    public:
502        SyncBlock(StatementsRef statements) : m_statements(statements) {}
503        StmtType_t statementType() const { return STMT_SYNC; }
504        void dump(int level = 0);
505        Statements* statements() const;
506        bool isPolyphonic() const { return m_statements->isPolyphonic(); }
507    };
508    typedef Ref<SyncBlock,Node> SyncBlockRef;
509    
510  class Neg : public IntExpr {  class Neg : public IntExpr {
511      IntExprRef expr;      IntExprRef expr;
512  public:  public:
# Line 518  public: Line 561  public:
561  };  };
562  typedef Ref<Or,Node> OrRef;  typedef Ref<Or,Node> OrRef;
563    
564    class BitwiseOr : virtual public BinaryOp, virtual public IntExpr {
565    public:
566        BitwiseOr(IntExprRef lhs, IntExprRef rhs) : BinaryOp(lhs,rhs) {}
567        int evalInt();
568        void dump(int level = 0);
569    };
570    typedef Ref<BitwiseOr,Node> BitwiseOrRef;
571    
572  class And : virtual public BinaryOp, virtual public IntExpr {  class And : virtual public BinaryOp, virtual public IntExpr {
573  public:  public:
574      And(IntExprRef lhs, IntExprRef rhs) : BinaryOp(lhs,rhs) {}      And(IntExprRef lhs, IntExprRef rhs) : BinaryOp(lhs,rhs) {}
# Line 526  public: Line 577  public:
577  };  };
578  typedef Ref<And,Node> AndRef;  typedef Ref<And,Node> AndRef;
579    
580    class BitwiseAnd : virtual public BinaryOp, virtual public IntExpr {
581    public:
582        BitwiseAnd(IntExprRef lhs, IntExprRef rhs) : BinaryOp(lhs,rhs) {}
583        int evalInt();
584        void dump(int level = 0);
585    };
586    typedef Ref<BitwiseAnd,Node> BitwiseAndRef;
587    
588  class Not : virtual public IntExpr {  class Not : virtual public IntExpr {
589      IntExprRef expr;      IntExprRef expr;
590  public:  public:
# Line 537  public: Line 596  public:
596  };  };
597  typedef Ref<Not,Node> NotRef;  typedef Ref<Not,Node> NotRef;
598    
599    class BitwiseNot : virtual public IntExpr {
600        IntExprRef expr;
601    public:
602        BitwiseNot(IntExprRef expr) : expr(expr) {}
603        int evalInt() { return ~expr->evalInt(); }
604        void dump(int level = 0);
605        bool isConstExpr() const { return expr->isConstExpr(); }
606        bool isPolyphonic() const { return expr->isPolyphonic(); }
607    };
608    typedef Ref<BitwiseNot,Node> BitwiseNotRef;
609    
610  class ParserContext : public VMParserContext {  class ParserContext : public VMParserContext {
611  public:  public:
612      struct Error {      struct Error {
# Line 555  public: Line 625  public:
625      std::set<String> userPreprocessorConditions;      std::set<String> userPreprocessorConditions;
626    
627      std::map<String,VariableRef> vartable;      std::map<String,VariableRef> vartable;
628        std::map<String,StatementsRef> userFnTable;
629      int globalIntVarCount;      int globalIntVarCount;
630      int globalStrVarCount;      int globalStrVarCount;
631      int polyphonicIntVarCount;      int polyphonicIntVarCount;
# Line 586  public: Line 657  public:
657      IntVariableRef globalIntVar(const String& name);      IntVariableRef globalIntVar(const String& name);
658      StringVariableRef globalStrVar(const String& name);      StringVariableRef globalStrVar(const String& name);
659      VariableRef variableByName(const String& name);      VariableRef variableByName(const String& name);
660      void addErr(int line, const char* txt);      StatementsRef userFunctionByName(const String& name);
661      void addWrn(int line, const char* txt);      void addErr(int firstLine, int lastLine, int firstColumn, int lastColumn, const char* txt);
662        void addWrn(int firstLine, int lastLine, int firstColumn, int lastColumn, const char* txt);
663      void createScanner(std::istream* is);      void createScanner(std::istream* is);
664      void destroyScanner();      void destroyScanner();
665      bool setPreprocessorCondition(const char* name);      bool setPreprocessorCondition(const char* name);
# Line 601  public: Line 673  public:
673      void registerBuiltInConstIntVariables(const std::map<String,int>& vars);      void registerBuiltInConstIntVariables(const std::map<String,int>& vars);
674      void registerBuiltInIntVariables(const std::map<String,VMIntRelPtr*>& vars);      void registerBuiltInIntVariables(const std::map<String,VMIntRelPtr*>& vars);
675      void registerBuiltInIntArrayVariables(const std::map<String,VMInt8Array*>& vars);      void registerBuiltInIntArrayVariables(const std::map<String,VMInt8Array*>& vars);
676        void registerBuiltInDynVariables(const std::map<String,VMDynVar*>& vars);
677  };  };
678    
679  class ExecContext : public VMExecContext {  class ExecContext : public VMExecContext {
# Line 620  public: Line 693  public:
693      ArrayList<StackFrame> stack;      ArrayList<StackFrame> stack;
694      int stackFrame;      int stackFrame;
695      int suspendMicroseconds;      int suspendMicroseconds;
696        size_t instructionsCount;
697    
698      ExecContext() :      ExecContext() :
699          status(VM_EXEC_NOT_RUNNING), stackFrame(-1), suspendMicroseconds(0) {}          status(VM_EXEC_NOT_RUNNING), stackFrame(-1), suspendMicroseconds(0),
700            instructionsCount(0) {}
701    
702      virtual ~ExecContext() {}      virtual ~ExecContext() {}
703    
# Line 650  public: Line 725  public:
725      int suspensionTimeMicroseconds() const OVERRIDE {      int suspensionTimeMicroseconds() const OVERRIDE {
726          return suspendMicroseconds;          return suspendMicroseconds;
727      }      }
728    
729        void resetPolyphonicData() OVERRIDE {
730            if (polyphonicIntMemory.empty()) return;
731            memset(&polyphonicIntMemory[0], 0, polyphonicIntMemory.size() * sizeof(int));
732        }
733    
734        size_t instructionsPerformed() const OVERRIDE {
735            return instructionsCount;
736        }
737  };  };
738    
739  } // namespace LinuxSampler  } // namespace LinuxSampler
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