/[svn]/linuxsampler/trunk/src/scriptvm/tree.h
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revision 3054 by schoenebeck, Thu Dec 15 12:47:45 2016 UTC revision 3455 by persson, Sun Jan 27 10:07:54 2019 UTC
# Line 1  Line 1 
1  /*                                                              -*- c++ -*-  /*                                                              -*- c++ -*-
2   *   *
3   * Copyright (c) 2014 - 2016 Christian Schoenebeck and Andreas Persson   * Copyright (c) 2014 - 2019 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        STMT_NOOP,
41  };  };
42    
43  class Node {  class Node {
# Line 63  public: Line 66  public:
66  };  };
67  typedef Ref<IntExpr,Node> IntExprRef;  typedef Ref<IntExpr,Node> IntExprRef;
68    
69    class IntArrayExpr : virtual public VMIntArrayExpr, virtual public Expression {
70    public:
71        ExprType_t exprType() const { return INT_ARR_EXPR; }
72        String evalCastToStr();
73    };
74    typedef Ref<IntArrayExpr,Node> IntArrayExprRef;
75    
76  class StringExpr : virtual public VMStringExpr, virtual public Expression {  class StringExpr : virtual public VMStringExpr, virtual public Expression {
77  public:  public:
78      ExprType_t exprType() const { return STRING_EXPR; }      ExprType_t exprType() const { return STRING_EXPR; }
# Line 164  public: Line 174  public:
174  };  };
175  typedef Ref<PolyphonicIntVariable,Node> PolyphonicIntVariableRef;  typedef Ref<PolyphonicIntVariable,Node> PolyphonicIntVariableRef;
176    
177  class IntArrayVariable : public Variable, virtual public VMIntArrayExpr {  class IntArrayVariable : public Variable, virtual public IntArrayExpr {
178      ArrayList<int> values;      ArrayList<int> values;
179  public:  public:
180      IntArrayVariable(ParserContext* ctx, int size);      IntArrayVariable(ParserContext* ctx, int size);
181      IntArrayVariable(ParserContext* ctx, int size, ArgsRef values);      IntArrayVariable(ParserContext* ctx, int size, ArgsRef values, bool _bConst = false);
182      void assign(Expression* expr) {} // ignore scalar assignment      void assign(Expression* expr) {} // ignore scalar assignment
183      String evalCastToStr() { return ""; } // ignore scalar cast to string      String evalCastToStr() { return ""; } // ignore scalar cast to string
184      ExprType_t exprType() const { return INT_ARR_EXPR; }      ExprType_t exprType() const { return INT_ARR_EXPR; }
# Line 187  class BuiltInIntArrayVariable : public I Line 197  class BuiltInIntArrayVariable : public I
197      VMInt8Array* array;      VMInt8Array* array;
198  public:  public:
199      BuiltInIntArrayVariable(const String& name, VMInt8Array* array);      BuiltInIntArrayVariable(const String& name, VMInt8Array* array);
200      int arraySize() const { return array->size; }      int arraySize() const OVERRIDE { return array->size; }
201      int evalIntElement(uint i);      int evalIntElement(uint i) OVERRIDE;
202      void assignIntElement(uint i, int value);      bool isAssignable() const OVERRIDE { return !array->readonly; }
203      void dump(int level = 0);      void assignIntElement(uint i, int value) OVERRIDE;
204        void dump(int level = 0) OVERRIDE;
205  };  };
206  typedef Ref<BuiltInIntArrayVariable,Node> BuiltInIntArrayVariableRef;  typedef Ref<BuiltInIntArrayVariable,Node> BuiltInIntArrayVariableRef;
207    
208  class IntArrayElement : public IntVariable {  class IntArrayElement : public IntVariable {
209      IntArrayVariableRef array;      IntArrayExprRef array;
210      IntExprRef index;      IntExprRef index;
211  public:  public:
212      IntArrayElement(IntArrayVariableRef array, IntExprRef arrayIndex);      IntArrayElement(IntArrayExprRef array, IntExprRef arrayIndex);
213      void assign(Expression* expr);      void assign(Expression* expr);
214      int evalInt();      int evalInt();
215      void dump(int level = 0);      void dump(int level = 0);
# Line 290  typedef Ref<Statement,Node> StatementRef Line 301  typedef Ref<Statement,Node> StatementRef
301  class NoOperation : public Statement {  class NoOperation : public Statement {
302  public:  public:
303      NoOperation() : Statement() {}      NoOperation() : Statement() {}
304      StmtType_t statementType() const { return STMT_LEAF; }      StmtType_t statementType() const { return STMT_NOOP; }
305      void dump(int level = 0) {}      void dump(int level = 0) {}
306      bool isPolyphonic() const { return false; }      bool isPolyphonic() const { return false; }
307  };  };
# Line 323  public: Line 334  public:
334      virtual Statements* branch(uint i) const = 0;      virtual Statements* branch(uint i) const = 0;
335  };  };
336    
337  class DynamicVariableCall : public Variable, virtual public IntExpr, virtual public StringExpr {  class DynamicVariableCall : public Variable, virtual public IntExpr, virtual public StringExpr, virtual public IntArrayExpr {
338      VMDynVar* dynVar;      VMDynVar* dynVar;
339      String varName;      String varName;
340  public:  public:
# Line 333  public: Line 344  public:
344      bool isAssignable() const OVERRIDE { return dynVar->isAssignable(); }      bool isAssignable() const OVERRIDE { return dynVar->isAssignable(); }
345      bool isPolyphonic() const OVERRIDE { return false; }      bool isPolyphonic() const OVERRIDE { return false; }
346      void assign(Expression* expr) OVERRIDE { dynVar->assignExpr(expr); }      void assign(Expression* expr) OVERRIDE { dynVar->assignExpr(expr); }
347        VMIntArrayExpr* asIntArray() const OVERRIDE { return dynVar->asIntArray(); }
348      int evalInt() OVERRIDE;      int evalInt() OVERRIDE;
349      String evalStr() OVERRIDE;      String evalStr() OVERRIDE;
350      String evalCastToStr() OVERRIDE;      String evalCastToStr() OVERRIDE;
351        int arraySize() const OVERRIDE { return dynVar->asIntArray()->arraySize(); }
352        int evalIntElement(uint i) OVERRIDE { return dynVar->asIntArray()->evalIntElement(i); }
353        void assignIntElement(uint i, int value) OVERRIDE { return dynVar->asIntArray()->assignIntElement(i, value); }
354      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
355  };  };
356  typedef Ref<DynamicVariableCall,Node> DynamicVariableCallRef;  typedef Ref<DynamicVariableCall,Node> DynamicVariableCallRef;
# Line 347  class FunctionCall : virtual public Leaf Line 362  class FunctionCall : virtual public Leaf
362  public:  public:
363      FunctionCall(const char* function, ArgsRef args, VMFunction* fn) :      FunctionCall(const char* function, ArgsRef args, VMFunction* fn) :
364          functionName(function), args(args), fn(fn) { }          functionName(function), args(args), fn(fn) { }
365      void dump(int level = 0);      void dump(int level = 0) OVERRIDE;
366      StmtFlags_t exec();      StmtFlags_t exec() OVERRIDE;
367      int evalInt();      int evalInt() OVERRIDE;
368      String evalStr();      VMIntArrayExpr* asIntArray() const OVERRIDE;
369      bool isConstExpr() const { return false; }      String evalStr() OVERRIDE;
370      ExprType_t exprType() const;      bool isConstExpr() const OVERRIDE { return false; }
371      String evalCastToStr();      ExprType_t exprType() const OVERRIDE;
372      bool isPolyphonic() const { return args->isPolyphonic(); }      String evalCastToStr() OVERRIDE;
373        bool isPolyphonic() const OVERRIDE { return args->isPolyphonic(); }
374  protected:  protected:
375      VMFnResult* execVMFn();      VMFnResult* execVMFn();
376  };  };
377  typedef Ref<FunctionCall,Node> FunctionCallRef;  typedef Ref<FunctionCall,Node> FunctionCallRef;
378    
379    class NoFunctionCall : public FunctionCall {
380    public:
381        NoFunctionCall() : FunctionCall("nothing", new Args, NULL) {}
382        StmtType_t statementType() const { return STMT_NOOP; }
383    };
384    typedef Ref<NoFunctionCall,Node> NoFunctionCallRef;
385    
386  class EventHandler : virtual public Statements, virtual public VMEventHandler {  class EventHandler : virtual public Statements, virtual public VMEventHandler {
387      StatementsRef statements;      StatementsRef statements;
388      bool usingPolyphonics;      bool usingPolyphonics;
# Line 484  public: Line 507  public:
507      bool isPolyphonic() const { return m_condition->isPolyphonic() || m_statements->isPolyphonic(); }      bool isPolyphonic() const { return m_condition->isPolyphonic() || m_statements->isPolyphonic(); }
508  };  };
509    
510    class SyncBlock : public Statement {
511        StatementsRef m_statements;
512    public:
513        SyncBlock(StatementsRef statements) : m_statements(statements) {}
514        StmtType_t statementType() const { return STMT_SYNC; }
515        void dump(int level = 0);
516        Statements* statements() const;
517        bool isPolyphonic() const { return m_statements->isPolyphonic(); }
518    };
519    typedef Ref<SyncBlock,Node> SyncBlockRef;
520    
521  class Neg : public IntExpr {  class Neg : public IntExpr {
522      IntExprRef expr;      IntExprRef expr;
523  public:  public:
# Line 597  public: Line 631  public:
631      std::vector<ParserIssue> vErrors;      std::vector<ParserIssue> vErrors;
632      std::vector<ParserIssue> vWarnings;      std::vector<ParserIssue> vWarnings;
633      std::vector<ParserIssue> vIssues;      std::vector<ParserIssue> vIssues;
634        std::vector<CodeBlock>   vPreprocessorComments;
635    
636      std::set<String> builtinPreprocessorConditions;      std::set<String> builtinPreprocessorConditions;
637      std::set<String> userPreprocessorConditions;      std::set<String> userPreprocessorConditions;
# Line 637  public: Line 672  public:
672      StatementsRef userFunctionByName(const String& name);      StatementsRef userFunctionByName(const String& name);
673      void addErr(int firstLine, int lastLine, int firstColumn, int lastColumn, const char* txt);      void addErr(int firstLine, int lastLine, int firstColumn, int lastColumn, const char* txt);
674      void addWrn(int firstLine, int lastLine, int firstColumn, int lastColumn, const char* txt);      void addWrn(int firstLine, int lastLine, int firstColumn, int lastColumn, const char* txt);
675        void addPreprocessorComment(int firstLine, int lastLine, int firstColumn, int lastColumn);
676      void createScanner(std::istream* is);      void createScanner(std::istream* is);
677      void destroyScanner();      void destroyScanner();
678      bool setPreprocessorCondition(const char* name);      bool setPreprocessorCondition(const char* name);
# Line 645  public: Line 681  public:
681      std::vector<ParserIssue> issues() const OVERRIDE;      std::vector<ParserIssue> issues() const OVERRIDE;
682      std::vector<ParserIssue> errors() const OVERRIDE;      std::vector<ParserIssue> errors() const OVERRIDE;
683      std::vector<ParserIssue> warnings() const OVERRIDE;      std::vector<ParserIssue> warnings() const OVERRIDE;
684        std::vector<CodeBlock> preprocessorComments() const OVERRIDE;
685      VMEventHandler* eventHandler(uint index) OVERRIDE;      VMEventHandler* eventHandler(uint index) OVERRIDE;
686      VMEventHandler* eventHandlerByName(const String& name) OVERRIDE;      VMEventHandler* eventHandlerByName(const String& name) OVERRIDE;
687      void registerBuiltInConstIntVariables(const std::map<String,int>& vars);      void registerBuiltInConstIntVariables(const std::map<String,int>& vars);
# Line 667  public: Line 704  public:
704    
705      ArrayList<int> polyphonicIntMemory;      ArrayList<int> polyphonicIntMemory;
706      VMExecStatus_t status;      VMExecStatus_t status;
707        StmtFlags_t flags;
708      ArrayList<StackFrame> stack;      ArrayList<StackFrame> stack;
709      int stackFrame;      int stackFrame;
710      int suspendMicroseconds;      int suspendMicroseconds;
711        size_t instructionsCount;
712    
713      ExecContext() :      ExecContext() :
714          status(VM_EXEC_NOT_RUNNING), stackFrame(-1), suspendMicroseconds(0) {}          status(VM_EXEC_NOT_RUNNING), flags(STMT_SUCCESS), stackFrame(-1),
715            suspendMicroseconds(0), instructionsCount(0) {}
716    
717      virtual ~ExecContext() {}      virtual ~ExecContext() {}
718    
# Line 695  public: Line 735  public:
735          stack[0].statement = NULL;          stack[0].statement = NULL;
736          stack[0].subindex  = -1;          stack[0].subindex  = -1;
737          stackFrame = -1;          stackFrame = -1;
738            flags = STMT_SUCCESS;
739      }      }
740    
741      int suspensionTimeMicroseconds() const OVERRIDE {      int suspensionTimeMicroseconds() const OVERRIDE {
742          return suspendMicroseconds;          return suspendMicroseconds;
743      }      }
744    
745        void resetPolyphonicData() OVERRIDE {
746            if (polyphonicIntMemory.empty()) return;
747            memset(&polyphonicIntMemory[0], 0, polyphonicIntMemory.size() * sizeof(int));
748        }
749    
750        size_t instructionsPerformed() const OVERRIDE {
751            return instructionsCount;
752        }
753    
754        void signalAbort() OVERRIDE {
755            flags = StmtFlags_t(flags | STMT_ABORT_SIGNALLED);
756        }
757    
758        void forkTo(VMExecContext* ectx) const OVERRIDE;
759  };  };
760    
761  } // namespace LinuxSampler  } // namespace LinuxSampler
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