/[svn]/linuxsampler/trunk/src/scriptvm/tree.h
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Diff of /linuxsampler/trunk/src/scriptvm/tree.h

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revision 3561 by schoenebeck, Fri Aug 23 11:44:00 2019 UTC revision 3804 by schoenebeck, Thu Aug 6 12:15:02 2020 UTC
# Line 21  Line 21 
21  #include <map>  #include <map>
22  #include <set>  #include <set>
23  #include <string.h> // for memset()  #include <string.h> // for memset()
24    #include <assert.h>
25  #include "../common/global.h"  #include "../common/global.h"
26  #include "../common/Ref.h"  #include "../common/Ref.h"
27  #include "../common/ArrayList.h"  #include "../common/ArrayList.h"
28    #include "../common/optional.h"
29  #include "common.h"  #include "common.h"
30    
31  namespace LinuxSampler {  namespace LinuxSampler {
# Line 40  enum StmtType_t { Line 42  enum StmtType_t {
42      STMT_NOOP,      STMT_NOOP,
43  };  };
44    
45    enum Qualifier_t {
46        QUALIFIER_NONE = 0,
47        QUALIFIER_CONST = 1,
48        QUALIFIER_POLYPHONIC = (1<<1),
49        QUALIFIER_PATCH = (1<<2),
50    };
51    
52    struct PatchVarBlock {
53        CodeBlock nameBlock;
54        optional<CodeBlock> exprBlock;
55    };
56    
57    /**
58     * Convenience function used for retrieving the (assumed) data type of a given
59     * script variable name.
60     *
61     * @param name - some script variable name (e.g. "$foo")
62     * @return variable's assumed data type (e.g. INT_EXPR for example above)
63     */
64    inline ExprType_t exprTypeOfVarName(const String& name) {
65        if (name.empty()) return (ExprType_t) -1;
66        const char prefix = name[0];
67        switch (prefix) {
68            case '$': return INT_EXPR;
69            case '%': return INT_ARR_EXPR;
70            case '~': return REAL_EXPR;
71            case '?': return REAL_ARR_EXPR;
72            case '@': return STRING_EXPR;
73            case '!': return STRING_ARR_EXPR;
74        }
75        return (ExprType_t) -1;
76    }
77    
78    inline ExprType_t scalarTypeOfArray(ExprType_t arrayType) {
79        if (arrayType == INT_ARR_EXPR) return INT_EXPR;
80        if (arrayType == REAL_ARR_EXPR) return REAL_EXPR;
81        if (arrayType == STRING_ARR_EXPR) return STRING_EXPR;
82        assert(false);
83        return EMPTY_EXPR; // just to shut up the compiler
84    }
85    
86    inline String qualifierStr(Qualifier_t qualifier) {
87        switch (qualifier) {
88            case QUALIFIER_NONE:          return "none";
89            case QUALIFIER_CONST:         return "const";
90            case QUALIFIER_POLYPHONIC:    return "polyphonic";
91            case QUALIFIER_PATCH:         return "patch";
92        }
93        return "unknown";
94    }
95    
96    /**
97     * Used by parser for parser error messages to provide a text with all data
98     * types accepted by the given built-in function @a fn for the respective
99     * function argument @a iArg.
100     */
101    String acceptedArgTypesStr(VMFunction* fn, vmint iArg);
102    
103  class Node {  class Node {
104  public:  public:
105      Node();      Node();
# Line 58  public: Line 118  public:
118  };  };
119  typedef Ref<Expression,Node> ExpressionRef;  typedef Ref<Expression,Node> ExpressionRef;
120    
121  class IntExpr : virtual public VMIntExpr, virtual public Expression {  class Unit : virtual public VMUnit, virtual public Node {
122        StdUnit_t unit;
123    public:
124        Unit(StdUnit_t type) : unit(type) {}
125        StdUnit_t unitType() const OVERRIDE { return unit; }
126        static vmint convIntToUnitFactor(vmint iValue, VMUnit* srcUnit, VMUnit* dstUnit);
127        static vmint convIntToUnitFactor(vmint iValue, vmfloat srcFactor, vmfloat dstFactor);
128        static vmfloat convRealToUnitFactor(vmfloat fValue, VMUnit* srcUnit, VMUnit* dstUnit);
129        static vmfloat convRealToUnitFactor(vmfloat fValue, vmfloat srcFactor, vmfloat dstFactor);
130    };
131    typedef Ref<Unit,Node> UnitRef;
132    
133    class NumberExpr : virtual public Unit, virtual public VMNumberExpr, virtual public Expression {
134    public:
135    };
136    typedef Ref<NumberExpr,Node> NumberExprRef;
137    
138    class IntExpr : virtual public NumberExpr, virtual public VMIntExpr {
139  public:  public:
140      ExprType_t exprType() const OVERRIDE { return INT_EXPR; }      ExprType_t exprType() const OVERRIDE { return INT_EXPR; }
141        vmint evalIntToUnitFactor(vmfloat unitFactor);
142      String evalCastToStr() OVERRIDE;      String evalCastToStr() OVERRIDE;
143  };  };
144  typedef Ref<IntExpr,Node> IntExprRef;  typedef Ref<IntExpr,Node> IntExprRef;
145    
146  class IntArrayExpr : virtual public VMIntArrayExpr, virtual public Expression {  class RealExpr : virtual public NumberExpr, virtual public VMRealExpr  {
147    public:
148        ExprType_t exprType() const OVERRIDE { return REAL_EXPR; }
149        vmfloat evalRealToUnitFactor(vmfloat unitFactor);
150        String evalCastToStr() OVERRIDE;
151    };
152    typedef Ref<RealExpr,Node> RealExprRef;
153    
154    class ArrayExpr : virtual public VMArrayExpr, virtual public Expression {
155    public:
156    };
157    typedef Ref<ArrayExpr,Node> ArrayExprRef;
158    
159    class IntArrayExpr : virtual public VMIntArrayExpr, virtual public ArrayExpr {
160  public:  public:
161      ExprType_t exprType() const OVERRIDE { return INT_ARR_EXPR; }      ExprType_t exprType() const OVERRIDE { return INT_ARR_EXPR; }
162      String evalCastToStr() OVERRIDE;      String evalCastToStr() OVERRIDE;
163  };  };
164  typedef Ref<IntArrayExpr,Node> IntArrayExprRef;  typedef Ref<IntArrayExpr,Node> IntArrayExprRef;
165    
166    class RealArrayExpr : virtual public VMRealArrayExpr, virtual public ArrayExpr {
167    public:
168        ExprType_t exprType() const OVERRIDE { return REAL_ARR_EXPR; }
169        String evalCastToStr() OVERRIDE;
170    };
171    typedef Ref<RealArrayExpr,Node> RealArrayExprRef;
172    
173  class StringExpr : virtual public VMStringExpr, virtual public Expression {  class StringExpr : virtual public VMStringExpr, virtual public Expression {
174  public:  public:
175      ExprType_t exprType() const OVERRIDE { return STRING_EXPR; }      ExprType_t exprType() const OVERRIDE { return STRING_EXPR; }
# Line 79  public: Line 177  public:
177  };  };
178  typedef Ref<StringExpr,Node> StringExprRef;  typedef Ref<StringExpr,Node> StringExprRef;
179    
180  class Unit : virtual public VMUnit {  struct IntLitDef {
181      ArrayList<MetricPrefix_t> prefix;      vmint value; //NOTE: sequence matters! Since this is usually initialized with VMIntExpr::evalInt() it should be before member unitFactor, since the latter is usually initialized with VMIntExpr::unitFactor() which does not evaluate the expression.
182      StdUnit_t unit;      vmfloat unitFactor = VM_NO_FACTOR;
183  public:      StdUnit_t unitType = VM_NO_UNIT;
184      Unit() : unit(VM_NO_UNIT) {}      bool isFinal;
     MetricPrefix_t unitPrefix(vmuint i) const OVERRIDE;  
     StdUnit_t unitType() const OVERRIDE { return unit; }  
     void setUnit(const std::vector<MetricPrefix_t>& prefix, StdUnit_t type);  
     void setUnit(const MetricPrefix_t* prefixes, StdUnit_t type);  
     void copyUnitFrom(const IntExprRef& src);  
185  };  };
186    
187  class IntLiteral : public Unit, virtual public IntExpr {  class IntLiteral FINAL : public IntExpr {
188      bool finalVal;      bool finalVal;
189  public:      vmfloat unitPrefixFactor;
190      vmint value;      vmint value;
191      IntLiteral(vmint value) : Unit(),  public:
192          value(value), finalVal(false) { }      IntLiteral(const IntLitDef& def);
193      vmint evalInt() OVERRIDE;      vmint evalInt() OVERRIDE;
194        vmfloat unitFactor() const OVERRIDE { return unitPrefixFactor; }
195      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
196      bool isConstExpr() const OVERRIDE { return true; }      bool isConstExpr() const OVERRIDE { return true; }
197      bool isPolyphonic() const OVERRIDE { return false; }      bool isPolyphonic() const OVERRIDE { return false; }
198      bool isFinal() const OVERRIDE { return finalVal; }      bool isFinal() const OVERRIDE { return finalVal; }
     void setFinal(bool b = true) { finalVal = b; }  
199  };  };
200  typedef Ref<IntLiteral,Node> IntLiteralRef;  typedef Ref<IntLiteral,Node> IntLiteralRef;
201    
202  class StringLiteral : virtual public StringExpr {  struct RealLitDef {
203        vmfloat value; //NOTE: sequence matters! Since this is usually initialized with VMRealExpr::evalReal() it should be before member unitFactor, since the latter is usually initialized with VMRealExpr::unitFactor() which does not evaluate the expression.
204        vmfloat unitFactor = VM_NO_FACTOR;
205        StdUnit_t unitType = VM_NO_UNIT;
206        bool isFinal;
207    };
208    
209    class RealLiteral FINAL : public RealExpr {
210        bool finalVal;
211        vmfloat unitPrefixFactor;
212        vmfloat value;
213  public:  public:
214        RealLiteral(const RealLitDef& def);
215        vmfloat evalReal() OVERRIDE;
216        vmfloat unitFactor() const OVERRIDE { return unitPrefixFactor; }
217        void dump(int level = 0) OVERRIDE;
218        bool isConstExpr() const OVERRIDE { return true; }
219        bool isPolyphonic() const OVERRIDE { return false; }
220        bool isFinal() const OVERRIDE { return finalVal; }
221    };
222    typedef Ref<RealLiteral,Node> RealLiteralRef;
223    
224    class StringLiteral FINAL : public StringExpr {
225      String value;      String value;
226    public:
227      StringLiteral(const String& value) : value(value) { }      StringLiteral(const String& value) : value(value) { }
228      bool isConstExpr() const OVERRIDE { return true; }      bool isConstExpr() const OVERRIDE { return true; }
229      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
# Line 117  public: Line 232  public:
232  };  };
233  typedef Ref<StringLiteral,Node> StringLiteralRef;  typedef Ref<StringLiteral,Node> StringLiteralRef;
234    
235  class Args : virtual public VMFnArgs, virtual public Node {  class Args FINAL : virtual public VMFnArgs, virtual public Node {
236  public:  public:
237      std::vector<ExpressionRef> args;      std::vector<ExpressionRef> args;
238      void add(ExpressionRef arg) { args.push_back(arg); }      void add(ExpressionRef arg) { args.push_back(arg); }
# Line 128  public: Line 243  public:
243  };  };
244  typedef Ref<Args,Node> ArgsRef;  typedef Ref<Args,Node> ArgsRef;
245    
246    struct VariableDecl {
247        ParserContext* ctx;
248        bool isPolyphonic;
249        bool isConst;
250        vmint elements = 1;
251        vmint memPos;
252        vmint unitFactorMemPos;
253        StdUnit_t unitType = VM_NO_UNIT;
254        bool isFinal;
255    };
256    
257  class Variable : virtual public VMVariable, virtual public Expression {  class Variable : virtual public VMVariable, virtual public Expression {
258  public:  public:
259      bool isConstExpr() const OVERRIDE { return bConst; }      bool isConstExpr() const OVERRIDE { return bConst; }
# Line 135  public: Line 261  public:
261      virtual void assign(Expression* expr) = 0;      virtual void assign(Expression* expr) = 0;
262      void assignExpr(VMExpr* expr) OVERRIDE { Expression* e = dynamic_cast<Expression*>(expr); if (e) assign(e); }      void assignExpr(VMExpr* expr) OVERRIDE { Expression* e = dynamic_cast<Expression*>(expr); if (e) assign(e); }
263  protected:  protected:
264      Variable(ParserContext* ctx, vmint _memPos, bool _bConst)      Variable(const VariableDecl& decl);
         : context(ctx), memPos(_memPos), bConst(_bConst) {}  
265    
266      ParserContext* context;      ParserContext* context;
267      vmint memPos;      vmint memPos;
# Line 144  protected: Line 269  protected:
269  };  };
270  typedef Ref<Variable,Node> VariableRef;  typedef Ref<Variable,Node> VariableRef;
271    
272  class IntVariable : public Variable, public Unit, virtual public IntExpr {  class NumberVariable : public Variable, virtual public NumberExpr {
273      bool polyphonic;      bool polyphonic;
274      bool finalVal;      bool finalVal;
275    protected:
276        vmint unitFactorMemPos;
277  public:  public:
     IntVariable(ParserContext* ctx);  
     void assign(Expression* expr) OVERRIDE;  
     vmint evalInt() OVERRIDE;  
     void dump(int level = 0) OVERRIDE;  
278      bool isPolyphonic() const OVERRIDE { return polyphonic; }      bool isPolyphonic() const OVERRIDE { return polyphonic; }
279      bool isFinal() const OVERRIDE { return finalVal; }      bool isFinal() const OVERRIDE { return finalVal; }
280      void setFinal(bool b = true) { finalVal = b; }      vmfloat unitFactor() const OVERRIDE;
281  protected:  protected:
282      IntVariable(ParserContext* ctx, bool polyphonic, bool bConst, vmint size = 1);      NumberVariable(const VariableDecl& decl);
283    };
284    typedef Ref<NumberVariable,Node> NumberVariableRef;
285    
286    class IntVariable : public NumberVariable, virtual public IntExpr {
287    public:
288        IntVariable(const VariableDecl& decl);
289        void assign(Expression* expr) OVERRIDE;
290        vmint evalInt() OVERRIDE;
291        void dump(int level = 0) OVERRIDE;
292  };  };
293  typedef Ref<IntVariable,Node> IntVariableRef;  typedef Ref<IntVariable,Node> IntVariableRef;
294    
295  class ConstIntVariable : public IntVariable {  class RealVariable : public NumberVariable, virtual public RealExpr {
296  public:  public:
297      vmint value;      RealVariable(const VariableDecl& decl);
298        void assign(Expression* expr) OVERRIDE;
299        vmfloat evalReal() OVERRIDE;
300        void dump(int level = 0) OVERRIDE;
301    };
302    typedef Ref<RealVariable,Node> RealVariableRef;
303    
304      ConstIntVariable(vmint value);  struct IntVarDef /* : VariableDecl*/ { //NOTE: derived, aggregate initializer-lists requires C++17
305      //ConstIntVariable(ParserContext* ctx, int value = 0);      // additions for RealVarDef
306        vmint value = 0; //NOTE: sequence matters! Since this is usually initialized with VMIntExpr::evalInt() it should be before member unitFactor, since the latter is usually initialized with VMIntExpr::unitFactor() which does not evaluate the expression.
307        vmfloat unitFactor = VM_NO_FACTOR;
308        // copied from VariableDecl
309        ParserContext* ctx;
310        bool isPolyphonic;
311        bool isConst;
312        vmint elements = 1;
313        vmint memPos;
314        vmint unitFactorMemPos;
315        StdUnit_t unitType = VM_NO_UNIT;
316        bool isFinal;
317    };
318    
319    class ConstIntVariable FINAL : public IntVariable {
320        vmfloat unitPrefixFactor;
321        vmint value;
322    public:
323        ConstIntVariable(const IntVarDef& def);
324      void assign(Expression* expr) OVERRIDE;      void assign(Expression* expr) OVERRIDE;
325      vmint evalInt() OVERRIDE;      vmint evalInt() OVERRIDE;
326        vmfloat unitFactor() const OVERRIDE { return unitPrefixFactor; }
327      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
328  };  };
329  typedef Ref<ConstIntVariable,Node> ConstIntVariableRef;  typedef Ref<ConstIntVariable,Node> ConstIntVariableRef;
330    
331  class BuiltInIntVariable : public IntVariable {  struct RealVarDef /* : VariableDecl*/ { //NOTE: derived, aggregate initializer-lists requires C++17
332        // additions for RealVarDef
333        vmfloat value = vmfloat(0); //NOTE: sequence matters! Since this is usually initialized with VMRealExpr::evalReal() it should be before member unitFactor, since the latter is usually initialized with VMRealExpr::unitFactor() which does not evaluate the expression.
334        vmfloat unitFactor = VM_NO_FACTOR;
335        // copied from VariableDecl
336        ParserContext* ctx;
337        bool isPolyphonic;
338        bool isConst;
339        vmint elements = 1;
340        vmint memPos;
341        vmint unitFactorMemPos;
342        StdUnit_t unitType = VM_NO_UNIT;
343        bool isFinal;
344    };
345    
346    class ConstRealVariable FINAL : public RealVariable {
347        vmfloat unitPrefixFactor;
348        vmfloat value;
349    public:
350        ConstRealVariable(const RealVarDef& def);
351        void assign(Expression* expr) OVERRIDE;
352        vmfloat evalReal() OVERRIDE;
353        vmfloat unitFactor() const OVERRIDE { return unitPrefixFactor; }
354        void dump(int level = 0) OVERRIDE;
355    };
356    typedef Ref<ConstRealVariable,Node> ConstRealVariableRef;
357    
358    class BuiltInIntVariable FINAL : public IntVariable {
359      String name;      String name;
360      VMIntPtr* ptr;      VMIntPtr* ptr;
361  public:  public:
# Line 180  public: Line 363  public:
363      bool isAssignable() const OVERRIDE { return ptr->isAssignable(); }      bool isAssignable() const OVERRIDE { return ptr->isAssignable(); }
364      void assign(Expression* expr) OVERRIDE;      void assign(Expression* expr) OVERRIDE;
365      vmint evalInt() OVERRIDE;      vmint evalInt() OVERRIDE;
366        vmfloat unitFactor() const OVERRIDE { return VM_NO_FACTOR; }
367      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
368  };  };
369  typedef Ref<BuiltInIntVariable,Node> BuiltInIntVariableRef;  typedef Ref<BuiltInIntVariable,Node> BuiltInIntVariableRef;
370    
371  class PolyphonicIntVariable : public IntVariable {  class PolyphonicIntVariable FINAL : public IntVariable {
372  public:  public:
373      PolyphonicIntVariable(ParserContext* ctx);      PolyphonicIntVariable(const VariableDecl& decl);
374      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
375  };  };
376  typedef Ref<PolyphonicIntVariable,Node> PolyphonicIntVariableRef;  typedef Ref<PolyphonicIntVariable,Node> PolyphonicIntVariableRef;
377    
378    class PolyphonicRealVariable FINAL : public RealVariable {
379    public:
380        PolyphonicRealVariable(const VariableDecl& decl);
381        void dump(int level = 0) OVERRIDE;
382    };
383    typedef Ref<PolyphonicRealVariable,Node> PolyphonicRealVariableRef;
384    
385  class IntArrayVariable : public Variable, virtual public IntArrayExpr {  class IntArrayVariable : public Variable, virtual public IntArrayExpr {
386      ArrayList<vmint> values;      ArrayList<vmint> values;
387        ArrayList<vmfloat> unitFactors;
388  public:  public:
389      IntArrayVariable(ParserContext* ctx, vmint size);      IntArrayVariable(ParserContext* ctx, vmint size);
390      IntArrayVariable(ParserContext* ctx, vmint size, ArgsRef values, bool _bConst = false);      IntArrayVariable(ParserContext* ctx, vmint size, ArgsRef values, bool _bConst = false);
391      void assign(Expression* expr) OVERRIDE {} // ignore scalar assignment      void assign(Expression* expr) OVERRIDE {} // ignore scalar assignment
     String evalCastToStr() OVERRIDE { return ""; } // ignore scalar cast to string  
392      ExprType_t exprType() const OVERRIDE { return INT_ARR_EXPR; }      ExprType_t exprType() const OVERRIDE { return INT_ARR_EXPR; }
393      virtual vmint arraySize() const OVERRIDE { return values.size(); }      virtual vmint arraySize() const OVERRIDE { return values.size(); }
394      virtual vmint evalIntElement(vmuint i) OVERRIDE;      virtual vmint evalIntElement(vmuint i) OVERRIDE;
395      virtual void assignIntElement(vmuint i, vmint value) OVERRIDE;      virtual void assignIntElement(vmuint i, vmint value) OVERRIDE;
396        vmfloat unitFactorOfElement(vmuint i) const OVERRIDE;
397        void assignElementUnitFactor(vmuint i, vmfloat factor) OVERRIDE;
398      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
399      bool isPolyphonic() const OVERRIDE { return false; }      bool isPolyphonic() const OVERRIDE { return false; }
400  protected:  protected:
# Line 209  protected: Line 402  protected:
402  };  };
403  typedef Ref<IntArrayVariable,Node> IntArrayVariableRef;  typedef Ref<IntArrayVariable,Node> IntArrayVariableRef;
404    
405  class BuiltInIntArrayVariable : public IntArrayVariable {  class RealArrayVariable FINAL : public Variable, virtual public RealArrayExpr {
406        ArrayList<vmfloat> values;
407        ArrayList<vmfloat> unitFactors;
408    public:
409        RealArrayVariable(ParserContext* ctx, vmint size);
410        RealArrayVariable(ParserContext* ctx, vmint size, ArgsRef values, bool _bConst = false);
411        void assign(Expression* expr) OVERRIDE {} // ignore scalar assignment
412        ExprType_t exprType() const OVERRIDE { return REAL_ARR_EXPR; }
413        virtual vmint arraySize() const OVERRIDE { return values.size(); }
414        virtual vmfloat evalRealElement(vmuint i) OVERRIDE;
415        virtual void assignRealElement(vmuint i, vmfloat value) OVERRIDE;
416        vmfloat unitFactorOfElement(vmuint i) const OVERRIDE;
417        void assignElementUnitFactor(vmuint i, vmfloat factor) OVERRIDE;
418        void dump(int level = 0) OVERRIDE;
419        bool isPolyphonic() const OVERRIDE { return false; }
420    protected:
421        RealArrayVariable(ParserContext* ctx, bool bConst);
422    };
423    typedef Ref<RealArrayVariable,Node> RealArrayVariableRef;
424    
425    class BuiltInIntArrayVariable FINAL : public IntArrayVariable {
426      String name;      String name;
427      VMInt8Array* array;      VMInt8Array* array;
428  public:  public:
429      BuiltInIntArrayVariable(const String& name, VMInt8Array* array);      BuiltInIntArrayVariable(const String& name, VMInt8Array* array);
430      vmint arraySize() const OVERRIDE { return array->size; }      vmint arraySize() const OVERRIDE { return array->size; }
431      vmint evalIntElement(vmuint i) OVERRIDE;      vmint evalIntElement(vmuint i) OVERRIDE;
     bool isAssignable() const OVERRIDE { return !array->readonly; }  
432      void assignIntElement(vmuint i, vmint value) OVERRIDE;      void assignIntElement(vmuint i, vmint value) OVERRIDE;
433        vmfloat unitFactorOfElement(vmuint i) const OVERRIDE { return VM_NO_FACTOR; }
434        void assignElementUnitFactor(vmuint i, vmfloat factor) OVERRIDE {}
435        bool isAssignable() const OVERRIDE { return !array->readonly; }
436      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
437  };  };
438  typedef Ref<BuiltInIntArrayVariable,Node> BuiltInIntArrayVariableRef;  typedef Ref<BuiltInIntArrayVariable,Node> BuiltInIntArrayVariableRef;
439    
440  class IntArrayElement : public IntVariable {  class IntArrayElement FINAL : public IntVariable {
441      IntArrayExprRef array;      IntArrayExprRef array;
442      IntExprRef index;      IntExprRef index;
443        vmint currentIndex;
444  public:  public:
445      IntArrayElement(IntArrayExprRef array, IntExprRef arrayIndex);      IntArrayElement(IntArrayExprRef array, IntExprRef arrayIndex);
446      void assign(Expression* expr) OVERRIDE;      void assign(Expression* expr) OVERRIDE;
447      vmint evalInt() OVERRIDE;      vmint evalInt() OVERRIDE;
448        vmfloat unitFactor() const OVERRIDE;
449      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
450  };  };
451  typedef Ref<IntArrayElement,Node> IntArrayElementRef;  typedef Ref<IntArrayElement,Node> IntArrayElementRef;
452    
453    class RealArrayElement FINAL : public RealVariable {
454        RealArrayExprRef array;
455        IntExprRef index;
456        vmint currentIndex;
457    public:
458        RealArrayElement(RealArrayExprRef array, IntExprRef arrayIndex);
459        void assign(Expression* expr) OVERRIDE;
460        vmfloat evalReal() OVERRIDE;
461        vmfloat unitFactor() const OVERRIDE;
462        void dump(int level = 0) OVERRIDE;
463    };
464    typedef Ref<RealArrayElement,Node> RealArrayElementRef;
465    
466  class StringVariable : public Variable, virtual public StringExpr {  class StringVariable : public Variable, virtual public StringExpr {
467  public:  public:
468      StringVariable(ParserContext* ctx);      StringVariable(ParserContext* ctx);
# Line 245  protected: Line 475  protected:
475  };  };
476  typedef Ref<StringVariable,Node> StringVariableRef;  typedef Ref<StringVariable,Node> StringVariableRef;
477    
478  class ConstStringVariable : public StringVariable {  class ConstStringVariable FINAL : public StringVariable {
 public:  
479      String value;      String value;
480    public:
481      ConstStringVariable(ParserContext* ctx, String value = "");      ConstStringVariable(ParserContext* ctx, String value = "");
482      void assign(Expression* expr) OVERRIDE;      void assign(Expression* expr) OVERRIDE;
483      String evalStr() OVERRIDE;      String evalStr() OVERRIDE;
# Line 267  public: Line 496  public:
496  };  };
497  typedef Ref<BinaryOp,Node> BinaryOpRef;  typedef Ref<BinaryOp,Node> BinaryOpRef;
498    
499  class IntBinaryOp : public BinaryOp, virtual public IntExpr {  class NumberBinaryOp : public BinaryOp, virtual public NumberExpr {
500  public:  public:
501      IntBinaryOp(IntExprRef lhs, IntExprRef rhs) : BinaryOp(lhs, rhs) { }      NumberBinaryOp(NumberExprRef lhs, NumberExprRef rhs) : BinaryOp(lhs, rhs) { }
     MetricPrefix_t unitPrefix(vmuint i) const OVERRIDE;  
     StdUnit_t unitType() const OVERRIDE;  
502      bool isFinal() const OVERRIDE;      bool isFinal() const OVERRIDE;
503  };  };
504    typedef Ref<NumberBinaryOp,Node> NumberBinaryOpRef;
505    
506    class IntBinaryOp : public NumberBinaryOp, virtual public IntExpr {
507    public:
508        IntBinaryOp(IntExprRef lhs, IntExprRef rhs) : NumberBinaryOp(lhs, rhs) { }
509    };
510  typedef Ref<IntBinaryOp,Node> IntBinaryOpRef;  typedef Ref<IntBinaryOp,Node> IntBinaryOpRef;
511    
512  class Add : public IntBinaryOp {  class VaritypeScalarBinaryOp : public NumberBinaryOp, virtual public IntExpr, virtual public RealExpr {
513    public:
514        VaritypeScalarBinaryOp(NumberExprRef lhs, NumberExprRef rhs) : NumberBinaryOp(lhs, rhs) { }
515        ExprType_t exprType() const OVERRIDE;
516        String evalCastToStr() OVERRIDE;
517    };
518    typedef Ref<VaritypeScalarBinaryOp,Node> VaritypeScalarBinaryOpRef;
519    
520    class Add FINAL : public VaritypeScalarBinaryOp {
521  public:  public:
522      Add(IntExprRef lhs, IntExprRef rhs) : IntBinaryOp(lhs, rhs) { }      Add(NumberExprRef lhs, NumberExprRef rhs);
523      vmint evalInt() OVERRIDE;      vmint evalInt() OVERRIDE;
524        vmfloat evalReal() OVERRIDE;
525        vmfloat unitFactor() const OVERRIDE;
526      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
527  };  };
528  typedef Ref<Add,Node> AddRef;  typedef Ref<Add,Node> AddRef;
529    
530  class Sub : public IntBinaryOp {  class Sub FINAL : public VaritypeScalarBinaryOp {
531  public:  public:
532      Sub(IntExprRef lhs, IntExprRef rhs) : IntBinaryOp(lhs, rhs) { }      Sub(NumberExprRef lhs, NumberExprRef rhs);
533      vmint evalInt() OVERRIDE;      vmint evalInt() OVERRIDE;
534        vmfloat evalReal() OVERRIDE;
535        vmfloat unitFactor() const OVERRIDE;
536      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
537  };  };
538  typedef Ref<Sub,Node> SubRef;  typedef Ref<Sub,Node> SubRef;
539    
540  class Mul : public IntBinaryOp {  class Mul FINAL : public VaritypeScalarBinaryOp {
541  public:  public:
542      Mul(IntExprRef lhs, IntExprRef rhs) : IntBinaryOp(lhs, rhs) { }      Mul(NumberExprRef lhs, NumberExprRef rhs);
543      vmint evalInt() OVERRIDE;      vmint evalInt() OVERRIDE;
544        vmfloat evalReal() OVERRIDE;
545        vmfloat unitFactor() const OVERRIDE;
546      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
     MetricPrefix_t unitPrefix(vmuint i) const OVERRIDE;  
     StdUnit_t unitType() const OVERRIDE;  
547  };  };
548  typedef Ref<Mul,Node> MulRef;  typedef Ref<Mul,Node> MulRef;
549    
550  class Div : public IntBinaryOp {  class Div FINAL : public VaritypeScalarBinaryOp {
551  public:  public:
552      Div(IntExprRef lhs, IntExprRef rhs) : IntBinaryOp(lhs, rhs) { }      Div(NumberExprRef lhs, NumberExprRef rhs);
553      vmint evalInt() OVERRIDE;      vmint evalInt() OVERRIDE;
554        vmfloat evalReal() OVERRIDE;
555      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
556      MetricPrefix_t unitPrefix(vmuint i) const OVERRIDE;      vmfloat unitFactor() const OVERRIDE;
     StdUnit_t unitType() const OVERRIDE;  
557  };  };
558  typedef Ref<Div,Node> DivRef;  typedef Ref<Div,Node> DivRef;
559    
560  class Mod : public IntBinaryOp {  class Mod FINAL : public IntBinaryOp {
561  public:  public:
562      Mod(IntExprRef lhs, IntExprRef rhs) : IntBinaryOp(lhs, rhs) { }      Mod(IntExprRef lhs, IntExprRef rhs) : IntBinaryOp(lhs, rhs), Unit(VM_NO_UNIT) { }
563      vmint evalInt() OVERRIDE;      vmint evalInt() OVERRIDE;
564        vmfloat unitFactor() const OVERRIDE { return VM_NO_FACTOR; }
565      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
566  };  };
567  typedef Ref<Mod,Node> ModRef;  typedef Ref<Mod,Node> ModRef;
# Line 328  typedef Ref<Statement,Node> StatementRef Line 574  typedef Ref<Statement,Node> StatementRef
574    
575  // Just used by parser to avoid "not a statement" parser warning, will be  // Just used by parser to avoid "not a statement" parser warning, will be
576  // filtered out by parser. So it will not be part of the VM tree after parsing.  // filtered out by parser. So it will not be part of the VM tree after parsing.
577  class NoOperation : public Statement {  class NoOperation FINAL : public Statement {
578  public:  public:
579      NoOperation() : Statement() {}      NoOperation() : Statement() {}
580      StmtType_t statementType() const OVERRIDE { return STMT_NOOP; }      StmtType_t statementType() const OVERRIDE { return STMT_NOOP; }
# Line 364  public: Line 610  public:
610      virtual Statements* branch(vmuint i) const = 0;      virtual Statements* branch(vmuint i) const = 0;
611  };  };
612    
613  class DynamicVariableCall : public Variable, virtual public IntExpr, virtual public StringExpr, virtual public IntArrayExpr {  class DynamicVariableCall FINAL : public Variable, virtual public IntExpr, virtual public StringExpr, virtual public IntArrayExpr {
614      VMDynVar* dynVar;      VMDynVar* dynVar;
615      String varName;      String varName;
616  public:  public:
# Line 381  public: Line 627  public:
627      vmint arraySize() const OVERRIDE { return dynVar->asIntArray()->arraySize(); }      vmint arraySize() const OVERRIDE { return dynVar->asIntArray()->arraySize(); }
628      vmint evalIntElement(vmuint i) OVERRIDE { return dynVar->asIntArray()->evalIntElement(i); }      vmint evalIntElement(vmuint i) OVERRIDE { return dynVar->asIntArray()->evalIntElement(i); }
629      void assignIntElement(vmuint i, vmint value) OVERRIDE { return dynVar->asIntArray()->assignIntElement(i, value); }      void assignIntElement(vmuint i, vmint value) OVERRIDE { return dynVar->asIntArray()->assignIntElement(i, value); }
630        vmfloat unitFactorOfElement(vmuint i) const OVERRIDE { return VM_NO_FACTOR; }
631        void assignElementUnitFactor(vmuint i, vmfloat factor) OVERRIDE {}
632      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
633      MetricPrefix_t unitPrefix(vmuint i) const OVERRIDE { return VM_NO_PREFIX; }      vmfloat unitFactor() const OVERRIDE { return VM_NO_FACTOR; }
     StdUnit_t unitType() const OVERRIDE { return VM_NO_UNIT; }  
634      bool isFinal() const OVERRIDE { return false; }      bool isFinal() const OVERRIDE { return false; }
635  };  };
636  typedef Ref<DynamicVariableCall,Node> DynamicVariableCallRef;  typedef Ref<DynamicVariableCall,Node> DynamicVariableCallRef;
637    
638  class FunctionCall : virtual public LeafStatement, virtual public IntExpr, virtual public StringExpr {  class FunctionCall : virtual public LeafStatement, virtual public IntExpr, virtual public RealExpr, virtual public StringExpr {
639      String functionName;      String functionName;
640      ArgsRef args;      ArgsRef args;
641      VMFunction* fn;      VMFunction* fn;
642        VMFnResult* result;
643  public:  public:
644      FunctionCall(const char* function, ArgsRef args, VMFunction* fn) :      FunctionCall(const char* function, ArgsRef args, VMFunction* fn);
645          functionName(function), args(args), fn(fn) { }      virtual ~FunctionCall();
646      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
647      StmtFlags_t exec() OVERRIDE;      StmtFlags_t exec() OVERRIDE;
648      vmint evalInt() OVERRIDE;      vmint evalInt() OVERRIDE;
649        vmfloat evalReal() OVERRIDE;
650      VMIntArrayExpr* asIntArray() const OVERRIDE;      VMIntArrayExpr* asIntArray() const OVERRIDE;
651        VMRealArrayExpr* asRealArray() const OVERRIDE;
652      String evalStr() OVERRIDE;      String evalStr() OVERRIDE;
653      bool isConstExpr() const OVERRIDE { return false; }      bool isConstExpr() const OVERRIDE { return false; }
654      ExprType_t exprType() const OVERRIDE;      ExprType_t exprType() const OVERRIDE;
655      String evalCastToStr() OVERRIDE;      String evalCastToStr() OVERRIDE;
656      bool isPolyphonic() const OVERRIDE { return args->isPolyphonic(); }      bool isPolyphonic() const OVERRIDE { return args->isPolyphonic(); }
657      MetricPrefix_t unitPrefix(vmuint i) const OVERRIDE { return VM_NO_PREFIX; }      vmfloat unitFactor() const OVERRIDE;
658      StdUnit_t unitType() const OVERRIDE { return VM_NO_UNIT; }      bool isFinal() const OVERRIDE;
     bool isFinal() const OVERRIDE { return false; }  
659  protected:  protected:
660      VMFnResult* execVMFn();      VMFnResult* execVMFn();
661  };  };
662  typedef Ref<FunctionCall,Node> FunctionCallRef;  typedef Ref<FunctionCall,Node> FunctionCallRef;
663    
664  class NoFunctionCall : public FunctionCall {  class NoFunctionCall FINAL : public FunctionCall {
665  public:  public:
666      NoFunctionCall() : FunctionCall("nothing", new Args, NULL) {}      NoFunctionCall() : FunctionCall("nothing", new Args, NULL), Unit(VM_NO_UNIT) {}
667      StmtType_t statementType() const OVERRIDE { return STMT_NOOP; }      StmtType_t statementType() const OVERRIDE { return STMT_NOOP; }
668  };  };
669  typedef Ref<NoFunctionCall,Node> NoFunctionCallRef;  typedef Ref<NoFunctionCall,Node> NoFunctionCallRef;
670    
671  class EventHandler : virtual public Statements, virtual public VMEventHandler {  class Subroutine : public Statements {
672      StatementsRef statements;      StatementsRef statements;
673    public:
674        Subroutine(StatementsRef statements);
675        Statement* statement(uint i) OVERRIDE { return statements->statement(i); }
676        void dump(int level = 0) OVERRIDE;
677    };
678    typedef Ref<Subroutine,Node> SubroutineRef;
679    
680    class UserFunction : public Subroutine {
681    public:
682        UserFunction(StatementsRef statements);
683    };
684    typedef Ref<UserFunction,Node> UserFunctionRef;
685    
686    class EventHandler : public Subroutine, virtual public VMEventHandler {
687      bool usingPolyphonics;      bool usingPolyphonics;
688  public:  public:
689      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
     StmtFlags_t exec();  
690      EventHandler(StatementsRef statements);      EventHandler(StatementsRef statements);
     Statement* statement(uint i) OVERRIDE { return statements->statement(i); }  
691      bool isPolyphonic() const OVERRIDE { return usingPolyphonics; }      bool isPolyphonic() const OVERRIDE { return usingPolyphonics; }
692  };  };
693  typedef Ref<EventHandler,Node> EventHandlerRef;  typedef Ref<EventHandler,Node> EventHandlerRef;
694    
695  class OnNote : public EventHandler {  class OnNote FINAL : public EventHandler {
696  public:  public:
697      OnNote(StatementsRef statements) : EventHandler(statements) {}      OnNote(StatementsRef statements) : EventHandler(statements) {}
698      VMEventHandlerType_t eventHandlerType() const OVERRIDE { return VM_EVENT_HANDLER_NOTE; }      VMEventHandlerType_t eventHandlerType() const OVERRIDE { return VM_EVENT_HANDLER_NOTE; }
# Line 439  public: Line 700  public:
700  };  };
701  typedef Ref<OnNote,Node> OnNoteRef;  typedef Ref<OnNote,Node> OnNoteRef;
702    
703  class OnInit : public EventHandler {  class OnInit FINAL : public EventHandler {
704  public:  public:
705      OnInit(StatementsRef statements) : EventHandler(statements) {}      OnInit(StatementsRef statements) : EventHandler(statements) {}
706      VMEventHandlerType_t eventHandlerType() const OVERRIDE { return VM_EVENT_HANDLER_INIT; }      VMEventHandlerType_t eventHandlerType() const OVERRIDE { return VM_EVENT_HANDLER_INIT; }
# Line 447  public: Line 708  public:
708  };  };
709  typedef Ref<OnInit,Node> OnInitRef;  typedef Ref<OnInit,Node> OnInitRef;
710    
711  class OnRelease : public EventHandler {  class OnRelease FINAL : public EventHandler {
712  public:  public:
713      OnRelease(StatementsRef statements) : EventHandler(statements) {}      OnRelease(StatementsRef statements) : EventHandler(statements) {}
714      VMEventHandlerType_t eventHandlerType() const OVERRIDE { return VM_EVENT_HANDLER_RELEASE; }      VMEventHandlerType_t eventHandlerType() const OVERRIDE { return VM_EVENT_HANDLER_RELEASE; }
# Line 455  public: Line 716  public:
716  };  };
717  typedef Ref<OnRelease,Node> OnReleaseRef;  typedef Ref<OnRelease,Node> OnReleaseRef;
718    
719  class OnController : public EventHandler {  class OnController FINAL : public EventHandler {
720  public:  public:
721      OnController(StatementsRef statements) : EventHandler(statements) {}      OnController(StatementsRef statements) : EventHandler(statements) {}
722      VMEventHandlerType_t eventHandlerType() const OVERRIDE { return VM_EVENT_HANDLER_CONTROLLER; }      VMEventHandlerType_t eventHandlerType() const OVERRIDE { return VM_EVENT_HANDLER_CONTROLLER; }
# Line 463  public: Line 724  public:
724  };  };
725  typedef Ref<OnController,Node> OnControllerRef;  typedef Ref<OnController,Node> OnControllerRef;
726    
727  class EventHandlers : virtual public Node {  class OnRpn FINAL : public EventHandler {
728    public:
729        OnRpn(StatementsRef statements) : EventHandler(statements) {}
730        VMEventHandlerType_t eventHandlerType() const OVERRIDE { return VM_EVENT_HANDLER_RPN; }
731        String eventHandlerName() const OVERRIDE { return "rpn"; }
732    };
733    typedef Ref<OnRpn,Node> OnRpnRef;
734    
735    class OnNrpn FINAL : public EventHandler {
736    public:
737        OnNrpn(StatementsRef statements) : EventHandler(statements) {}
738        VMEventHandlerType_t eventHandlerType() const OVERRIDE { return VM_EVENT_HANDLER_NRPN; }
739        String eventHandlerName() const OVERRIDE { return "nrpn"; }
740    };
741    typedef Ref<OnNrpn,Node> OnNrpnRef;
742    
743    class EventHandlers FINAL : virtual public Node {
744      std::vector<EventHandlerRef> args;      std::vector<EventHandlerRef> args;
745  public:  public:
746      EventHandlers();      EventHandlers();
# Line 477  public: Line 754  public:
754  };  };
755  typedef Ref<EventHandlers,Node> EventHandlersRef;  typedef Ref<EventHandlers,Node> EventHandlersRef;
756    
757  class Assignment : public LeafStatement {  class Assignment FINAL : public LeafStatement {
758  protected:  protected:
759      VariableRef variable;      VariableRef variable;
760      ExpressionRef value;      ExpressionRef value;
# Line 489  public: Line 766  public:
766  };  };
767  typedef Ref<Assignment,Node> AssignmentRef;  typedef Ref<Assignment,Node> AssignmentRef;
768    
769  class If : public BranchStatement {  class If FINAL : public BranchStatement {
770      IntExprRef condition;      IntExprRef condition;
771      StatementsRef ifStatements;      StatementsRef ifStatements;
772      StatementsRef elseStatements;      StatementsRef elseStatements;
# Line 505  public: Line 782  public:
782  };  };
783  typedef Ref<If,Node> IfRef;  typedef Ref<If,Node> IfRef;
784    
785  struct CaseBranch {  struct CaseBranch FINAL {
786      IntExprRef from;      IntExprRef from;
787      IntExprRef to;      IntExprRef to;
788      StatementsRef statements;      StatementsRef statements;
789  };  };
   
790  typedef std::vector<CaseBranch> CaseBranches;  typedef std::vector<CaseBranch> CaseBranches;
791    
792  class SelectCase : public BranchStatement {  class SelectCase FINAL : public BranchStatement {
793      IntExprRef select;      IntExprRef select;
794      CaseBranches branches;      CaseBranches branches;
795  public:  public:
# Line 521  public: Line 797  public:
797      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
798      vmint evalBranch() OVERRIDE;      vmint evalBranch() OVERRIDE;
799      Statements* branch(vmuint i) const OVERRIDE;      Statements* branch(vmuint i) const OVERRIDE;
     //void addBranch(IntExprRef condition, StatementsRef statements);  
     //void addBranch(IntExprRef from, IntExprRef to, StatementsRef statements);  
     //void addBranch(CaseBranchRef branch);  
     //void addBranches(CaseBranchesRef branches);  
800      bool isPolyphonic() const OVERRIDE;      bool isPolyphonic() const OVERRIDE;
801  };  };
802  typedef Ref<SelectCase,Node> SelectCaseRef;  typedef Ref<SelectCase,Node> SelectCaseRef;
803    
804  class While : public Statement {  class While FINAL : public Statement {
805      IntExprRef m_condition;      IntExprRef m_condition;
806      StatementsRef m_statements;      StatementsRef m_statements;
807  public:  public:
# Line 542  public: Line 814  public:
814      bool isPolyphonic() const OVERRIDE { return m_condition->isPolyphonic() || m_statements->isPolyphonic(); }      bool isPolyphonic() const OVERRIDE { return m_condition->isPolyphonic() || m_statements->isPolyphonic(); }
815  };  };
816    
817  class SyncBlock : public Statement {  class SyncBlock FINAL : public Statement {
818      StatementsRef m_statements;      StatementsRef m_statements;
819  public:  public:
820      SyncBlock(StatementsRef statements) : m_statements(statements) {}      SyncBlock(StatementsRef statements) : m_statements(statements) {}
# Line 553  public: Line 825  public:
825  };  };
826  typedef Ref<SyncBlock,Node> SyncBlockRef;  typedef Ref<SyncBlock,Node> SyncBlockRef;
827    
828  class Neg : public IntExpr {  class Neg FINAL : virtual public IntExpr, virtual public RealExpr {
829      IntExprRef expr;      NumberExprRef expr;
830  public:  public:
831      Neg(IntExprRef expr) : expr(expr) { }      Neg(NumberExprRef expr) : Unit(expr->unitType()), expr(expr) { }
832      vmint evalInt() OVERRIDE { return (expr) ? -expr->evalInt() : 0; }      ExprType_t exprType() const OVERRIDE { return expr->exprType(); }
833        vmint evalInt() OVERRIDE { return (expr) ? -(expr->asInt()->evalInt()) : 0; }
834        vmfloat evalReal() OVERRIDE { return (expr) ? -(expr->asReal()->evalReal()) : vmfloat(0); }
835        String evalCastToStr() OVERRIDE;
836      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
837      bool isConstExpr() const OVERRIDE { return expr->isConstExpr(); }      bool isConstExpr() const OVERRIDE { return expr->isConstExpr(); }
838      bool isPolyphonic() const OVERRIDE { return expr->isPolyphonic(); }      bool isPolyphonic() const OVERRIDE { return expr->isPolyphonic(); }
839      MetricPrefix_t unitPrefix(vmuint i) const OVERRIDE { return expr->unitPrefix(i); }      vmfloat unitFactor() const OVERRIDE { return expr->unitFactor(); }
     StdUnit_t unitType() const OVERRIDE { return expr->unitType(); }  
840      bool isFinal() const OVERRIDE { return expr->isFinal(); }      bool isFinal() const OVERRIDE { return expr->isFinal(); }
841  };  };
842  typedef Ref<Neg,Node> NegRef;  typedef Ref<Neg,Node> NegRef;
843    
844  class ConcatString : public StringExpr {  class ConcatString FINAL : public StringExpr {
845      ExpressionRef lhs;      ExpressionRef lhs;
846      ExpressionRef rhs;      ExpressionRef rhs;
847  public:  public:
# Line 579  public: Line 853  public:
853  };  };
854  typedef Ref<ConcatString,Node> ConcatStringRef;  typedef Ref<ConcatString,Node> ConcatStringRef;
855    
856  class Relation : public IntExpr {  class Relation FINAL : public IntExpr {
857  public:  public:
858      enum Type {      enum Type {
859          LESS_THAN,          LESS_THAN,
# Line 589  public: Line 863  public:
863          EQUAL,          EQUAL,
864          NOT_EQUAL          NOT_EQUAL
865      };      };
866      Relation(IntExprRef lhs, Type type, IntExprRef rhs) :      Relation(ExpressionRef lhs, Type type, ExpressionRef rhs);
         lhs(lhs), rhs(rhs), type(type) {}  
867      vmint evalInt() OVERRIDE;      vmint evalInt() OVERRIDE;
868      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
869      bool isConstExpr() const OVERRIDE;      bool isConstExpr() const OVERRIDE;
870      bool isPolyphonic() const OVERRIDE { return lhs->isPolyphonic() || rhs->isPolyphonic(); }      bool isPolyphonic() const OVERRIDE { return lhs->isPolyphonic() || rhs->isPolyphonic(); }
871      MetricPrefix_t unitPrefix(vmuint i) const OVERRIDE { return VM_NO_PREFIX; }      vmfloat unitFactor() const OVERRIDE { return VM_NO_FACTOR; }
     StdUnit_t unitType() const OVERRIDE { return VM_NO_UNIT; }  
872      bool isFinal() const OVERRIDE { return false; }      bool isFinal() const OVERRIDE { return false; }
873  private:  private:
874      IntExprRef lhs;      ExpressionRef lhs;
875      IntExprRef rhs;      ExpressionRef rhs;
876      Type type;      Type type;
877  };  };
878  typedef Ref<Relation,Node> RelationRef;  typedef Ref<Relation,Node> RelationRef;
879    
880  class Or : public IntBinaryOp {  class Or FINAL : public IntBinaryOp {
881  public:  public:
882      Or(IntExprRef lhs, IntExprRef rhs) : IntBinaryOp(lhs,rhs) {}      Or(IntExprRef lhs, IntExprRef rhs) : IntBinaryOp(lhs,rhs), Unit(VM_NO_UNIT) {}
883      vmint evalInt() OVERRIDE;      vmint evalInt() OVERRIDE;
884        vmfloat unitFactor() const OVERRIDE { return VM_NO_FACTOR; }
885      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
886  };  };
887  typedef Ref<Or,Node> OrRef;  typedef Ref<Or,Node> OrRef;
888    
889  class BitwiseOr : public IntBinaryOp {  class BitwiseOr FINAL : public IntBinaryOp {
890  public:  public:
891      BitwiseOr(IntExprRef lhs, IntExprRef rhs) : IntBinaryOp(lhs,rhs) {}      BitwiseOr(IntExprRef lhs, IntExprRef rhs) : IntBinaryOp(lhs,rhs), Unit(VM_NO_UNIT) {}
892      vmint evalInt() OVERRIDE;      vmint evalInt() OVERRIDE;
893      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
894      MetricPrefix_t unitPrefix(vmuint i) const OVERRIDE { return VM_NO_PREFIX; }      vmfloat unitFactor() const OVERRIDE { return VM_NO_FACTOR; }
     StdUnit_t unitType() const OVERRIDE { return VM_NO_UNIT; }  
895  };  };
896  typedef Ref<BitwiseOr,Node> BitwiseOrRef;  typedef Ref<BitwiseOr,Node> BitwiseOrRef;
897    
898  class And : public IntBinaryOp {  class And FINAL : public IntBinaryOp {
899  public:  public:
900      And(IntExprRef lhs, IntExprRef rhs) : IntBinaryOp(lhs,rhs) {}      And(IntExprRef lhs, IntExprRef rhs) : IntBinaryOp(lhs,rhs), Unit(VM_NO_UNIT) {}
901      vmint evalInt() OVERRIDE;      vmint evalInt() OVERRIDE;
902        vmfloat unitFactor() const OVERRIDE { return VM_NO_FACTOR; }
903      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
904  };  };
905  typedef Ref<And,Node> AndRef;  typedef Ref<And,Node> AndRef;
906    
907  class BitwiseAnd : public IntBinaryOp {  class BitwiseAnd FINAL : public IntBinaryOp {
908  public:  public:
909      BitwiseAnd(IntExprRef lhs, IntExprRef rhs) : IntBinaryOp(lhs,rhs) {}      BitwiseAnd(IntExprRef lhs, IntExprRef rhs) : IntBinaryOp(lhs,rhs), Unit(VM_NO_UNIT) {}
910      vmint evalInt() OVERRIDE;      vmint evalInt() OVERRIDE;
911      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
912      MetricPrefix_t unitPrefix(vmuint i) const OVERRIDE { return VM_NO_PREFIX; }      vmfloat unitFactor() const OVERRIDE { return VM_NO_FACTOR; }
     StdUnit_t unitType() const OVERRIDE { return VM_NO_UNIT; }  
913  };  };
914  typedef Ref<BitwiseAnd,Node> BitwiseAndRef;  typedef Ref<BitwiseAnd,Node> BitwiseAndRef;
915    
916  class Not : virtual public IntExpr {  class Not FINAL : virtual public IntExpr {
917      IntExprRef expr;      IntExprRef expr;
918  public:  public:
919      Not(IntExprRef expr) : expr(expr) {}      Not(IntExprRef expr) : Unit(VM_NO_UNIT), expr(expr) {}
920      vmint evalInt() OVERRIDE { return !expr->evalInt(); }      vmint evalInt() OVERRIDE { return !expr->evalInt(); }
921      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
922      bool isConstExpr() const OVERRIDE { return expr->isConstExpr(); }      bool isConstExpr() const OVERRIDE { return expr->isConstExpr(); }
923      bool isPolyphonic() const OVERRIDE { return expr->isPolyphonic(); }      bool isPolyphonic() const OVERRIDE { return expr->isPolyphonic(); }
924      MetricPrefix_t unitPrefix(vmuint i) const OVERRIDE { return VM_NO_PREFIX; }      vmfloat unitFactor() const OVERRIDE { return VM_NO_FACTOR; }
     StdUnit_t unitType() const OVERRIDE { return VM_NO_UNIT; }  
925      bool isFinal() const OVERRIDE { return expr->isFinal(); }      bool isFinal() const OVERRIDE { return expr->isFinal(); }
926  };  };
927  typedef Ref<Not,Node> NotRef;  typedef Ref<Not,Node> NotRef;
928    
929  class BitwiseNot : virtual public IntExpr {  class BitwiseNot FINAL : virtual public IntExpr {
930      IntExprRef expr;      IntExprRef expr;
931  public:  public:
932      BitwiseNot(IntExprRef expr) : expr(expr) {}      BitwiseNot(IntExprRef expr) : Unit(VM_NO_UNIT), expr(expr) {}
933      vmint evalInt() OVERRIDE { return ~expr->evalInt(); }      vmint evalInt() OVERRIDE { return ~expr->evalInt(); }
934      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
935      bool isConstExpr() const OVERRIDE { return expr->isConstExpr(); }      bool isConstExpr() const OVERRIDE { return expr->isConstExpr(); }
936      bool isPolyphonic() const OVERRIDE { return expr->isPolyphonic(); }      bool isPolyphonic() const OVERRIDE { return expr->isPolyphonic(); }
937      MetricPrefix_t unitPrefix(vmuint i) const OVERRIDE { return VM_NO_PREFIX; }      vmfloat unitFactor() const OVERRIDE { return VM_NO_FACTOR; }
     StdUnit_t unitType() const OVERRIDE { return VM_NO_UNIT; }  
938      bool isFinal() const OVERRIDE { return expr->isFinal(); }      bool isFinal() const OVERRIDE { return expr->isFinal(); }
939  };  };
940  typedef Ref<BitwiseNot,Node> BitwiseNotRef;  typedef Ref<BitwiseNot,Node> BitwiseNotRef;
941    
942  class Final : virtual public IntExpr {  class Final FINAL : virtual public IntExpr, virtual public RealExpr {
943      IntExprRef expr;      NumberExprRef expr;
944  public:  public:
945      Final(IntExprRef expr) : expr(expr) {}      Final(NumberExprRef expr) : Unit(expr->unitType()), expr(expr) {}
946      vmint evalInt() OVERRIDE { return expr->evalInt(); }      ExprType_t exprType() const OVERRIDE { return expr->exprType(); }
947        vmint evalInt() OVERRIDE { return expr->asInt()->evalInt(); }
948        vmfloat evalReal() OVERRIDE { return expr->asReal()->evalReal(); }
949        String evalCastToStr() OVERRIDE;
950      void dump(int level = 0) OVERRIDE;      void dump(int level = 0) OVERRIDE;
951      bool isConstExpr() const OVERRIDE { return expr->isConstExpr(); }      bool isConstExpr() const OVERRIDE { return expr->isConstExpr(); }
952      bool isPolyphonic() const OVERRIDE { return expr->isPolyphonic(); }      bool isPolyphonic() const OVERRIDE { return expr->isPolyphonic(); }
953      MetricPrefix_t unitPrefix(vmuint i) const OVERRIDE { return expr->unitPrefix(i); }      vmfloat unitFactor() const OVERRIDE { return expr->unitFactor(); }
     StdUnit_t unitType() const OVERRIDE { return expr->unitType(); }  
954      bool isFinal() const OVERRIDE { return true; }      bool isFinal() const OVERRIDE { return true; }
955  };  };
956  typedef Ref<Final,Node> FinalRef;  typedef Ref<Final,Node> FinalRef;
957    
958  class ParserContext : public VMParserContext {  class ParserContext FINAL : public VMParserContext {
959  public:  public:
960      struct Error {      struct Error {
961          String txt;          String txt;
# Line 693  public: Line 965  public:
965    
966      void* scanner;      void* scanner;
967      std::istream* is;      std::istream* is;
968        int nbytes;
969      std::vector<ParserIssue> vErrors;      std::vector<ParserIssue> vErrors;
970      std::vector<ParserIssue> vWarnings;      std::vector<ParserIssue> vWarnings;
971      std::vector<ParserIssue> vIssues;      std::vector<ParserIssue> vIssues;
972      std::vector<CodeBlock>   vPreprocessorComments;      std::vector<CodeBlock>   vPreprocessorComments;
973        std::map<String,PatchVarBlock> patchVars;
974    
975      std::set<String> builtinPreprocessorConditions;      std::set<String> builtinPreprocessorConditions;
976      std::set<String> userPreprocessorConditions;      std::set<String> userPreprocessorConditions;
977    
978      std::map<String,VariableRef> vartable;      std::map<String,VariableRef> vartable;
979      std::map<String,StatementsRef> userFnTable;      std::map<String,UserFunctionRef> userFnTable;
980      vmint globalIntVarCount;      vmint globalIntVarCount;
981        vmint globalRealVarCount;
982      vmint globalStrVarCount;      vmint globalStrVarCount;
983        vmint globalUnitFactorCount;
984      vmint polyphonicIntVarCount;      vmint polyphonicIntVarCount;
985        vmint polyphonicRealVarCount;
986        vmint polyphonicUnitFactorCount;
987    
988      EventHandlersRef handlers;      EventHandlersRef handlers;
989    
# Line 713  public: Line 991  public:
991      OnNoteRef onNote;      OnNoteRef onNote;
992      OnReleaseRef onRelease;      OnReleaseRef onRelease;
993      OnControllerRef onController;      OnControllerRef onController;
994        OnRpnRef onRpn;
995        OnNrpnRef onNrpn;
996    
997      ArrayList<vmint>* globalIntMemory;      ArrayList<vmint>* globalIntMemory;
998        ArrayList<vmfloat>* globalRealMemory;
999      ArrayList<String>* globalStrMemory;      ArrayList<String>* globalStrMemory;
1000        ArrayList<vmfloat>* globalUnitFactorMemory;
1001      vmint requiredMaxStackSize;      vmint requiredMaxStackSize;
1002    
1003      VMFunctionProvider* functionProvider;      VMFunctionProvider* functionProvider;
# Line 723  public: Line 1005  public:
1005      ExecContext* execContext;      ExecContext* execContext;
1006    
1007      ParserContext(VMFunctionProvider* parent) :      ParserContext(VMFunctionProvider* parent) :
1008          scanner(NULL), is(NULL),          scanner(NULL), is(NULL), nbytes(0),
1009          globalIntVarCount(0), globalStrVarCount(0), polyphonicIntVarCount(0),          globalIntVarCount(0), globalRealVarCount(0), globalStrVarCount(0),
1010          globalIntMemory(NULL), globalStrMemory(NULL), requiredMaxStackSize(-1),          globalUnitFactorCount(0),
1011            polyphonicIntVarCount(0), polyphonicRealVarCount(0),
1012            polyphonicUnitFactorCount(0),
1013            globalIntMemory(NULL), globalRealMemory(NULL), globalStrMemory(NULL),
1014            globalUnitFactorMemory(NULL),
1015            requiredMaxStackSize(-1),
1016          functionProvider(parent), execContext(NULL)          functionProvider(parent), execContext(NULL)
1017      {      {
1018      }      }
1019      virtual ~ParserContext();      virtual ~ParserContext();
1020      VariableRef globalVar(const String& name);      VariableRef globalVar(const String& name);
1021      IntVariableRef globalIntVar(const String& name);      IntVariableRef globalIntVar(const String& name);
1022        RealVariableRef globalRealVar(const String& name);
1023      StringVariableRef globalStrVar(const String& name);      StringVariableRef globalStrVar(const String& name);
1024      VariableRef variableByName(const String& name);      VariableRef variableByName(const String& name);
1025      StatementsRef userFunctionByName(const String& name);      UserFunctionRef userFunctionByName(const String& name);
1026      void addErr(int firstLine, int lastLine, int firstColumn, int lastColumn, const char* txt);      void addErr(int firstLine, int lastLine, int firstColumn, int lastColumn,
1027      void addWrn(int firstLine, int lastLine, int firstColumn, int lastColumn, const char* txt);                  int firstByte, int lengthBytes, const char* txt);
1028      void addPreprocessorComment(int firstLine, int lastLine, int firstColumn, int lastColumn);      void addWrn(int firstLine, int lastLine, int firstColumn, int lastColumn,
1029                    int firstByte, int lengthBytes, const char* txt);
1030        void addPreprocessorComment(int firstLine, int lastLine, int firstColumn,
1031                                    int lastColumn, int firstByte, int lengthBytes);
1032      void createScanner(std::istream* is);      void createScanner(std::istream* is);
1033      void destroyScanner();      void destroyScanner();
1034      bool setPreprocessorCondition(const char* name);      bool setPreprocessorCondition(const char* name);
# Line 750  public: Line 1041  public:
1041      VMEventHandler* eventHandler(uint index) OVERRIDE;      VMEventHandler* eventHandler(uint index) OVERRIDE;
1042      VMEventHandler* eventHandlerByName(const String& name) OVERRIDE;      VMEventHandler* eventHandlerByName(const String& name) OVERRIDE;
1043      void registerBuiltInConstIntVariables(const std::map<String,vmint>& vars);      void registerBuiltInConstIntVariables(const std::map<String,vmint>& vars);
1044        void registerBuiltInConstRealVariables(const std::map<String,vmfloat>& vars);
1045      void registerBuiltInIntVariables(const std::map<String,VMIntPtr*>& vars);      void registerBuiltInIntVariables(const std::map<String,VMIntPtr*>& vars);
1046      void registerBuiltInIntArrayVariables(const std::map<String,VMInt8Array*>& vars);      void registerBuiltInIntArrayVariables(const std::map<String,VMInt8Array*>& vars);
1047      void registerBuiltInDynVariables(const std::map<String,VMDynVar*>& vars);      void registerBuiltInDynVariables(const std::map<String,VMDynVar*>& vars);
1048  };  };
1049    
1050  class ExecContext : public VMExecContext {  class ExecContext FINAL : public VMExecContext {
1051  public:  public:
1052      struct StackFrame {      struct StackFrame {
1053          Statement* statement;          Statement* statement;
# Line 768  public: Line 1060  public:
1060      };      };
1061    
1062      ArrayList<vmint> polyphonicIntMemory;      ArrayList<vmint> polyphonicIntMemory;
1063        ArrayList<vmfloat> polyphonicRealMemory;
1064        ArrayList<vmfloat> polyphonicUnitFactorMemory;
1065      VMExecStatus_t status;      VMExecStatus_t status;
1066      StmtFlags_t flags;      StmtFlags_t flags;
1067      ArrayList<StackFrame> stack;      ArrayList<StackFrame> stack;
# Line 777  public: Line 1071  public:
1071      struct ExitRes {      struct ExitRes {
1072          Expression* value;          Expression* value;
1073          IntLiteral intLiteral;          IntLiteral intLiteral;
1074            RealLiteral realLiteral;
1075          StringLiteral stringLiteral;          StringLiteral stringLiteral;
1076    
1077          ExitRes() : intLiteral(0), stringLiteral("") { }          ExitRes() :
1078                intLiteral({ .value = 0 }), realLiteral({ .value = 0.0 }),
1079                stringLiteral("") { }
1080      } exitRes;      } exitRes;
1081    
1082      ExecContext();      ExecContext();
# Line 816  public: Line 1113  public:
1113      }      }
1114    
1115      void resetPolyphonicData() OVERRIDE {      void resetPolyphonicData() OVERRIDE {
1116          if (polyphonicIntMemory.empty()) return;          if (!polyphonicIntMemory.empty())
1117          memset(&polyphonicIntMemory[0], 0, polyphonicIntMemory.size() * sizeof(vmint));              memset(&polyphonicIntMemory[0], 0, polyphonicIntMemory.size() * sizeof(vmint));
1118            if (!polyphonicRealMemory.empty())
1119                memset(&polyphonicRealMemory[0], 0, polyphonicRealMemory.size() * sizeof(vmfloat));
1120            if (!polyphonicUnitFactorMemory.empty()) {
1121                const vmint sz = polyphonicUnitFactorMemory.size();
1122                for (vmint i = 0; i < sz; ++i)
1123                    polyphonicUnitFactorMemory[i] = VM_NO_FACTOR;
1124            }
1125      }      }
1126    
1127      size_t instructionsPerformed() const OVERRIDE {      size_t instructionsPerformed() const OVERRIDE {
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