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

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revision 2935 by schoenebeck, Sun Jul 10 14:24:13 2016 UTC revision 3260 by schoenebeck, Wed May 31 21:07:44 2017 UTC
# Line 1  Line 1 
1  /*  /*
2   * Copyright (c) 2014 - 2016 Christian Schoenebeck and Andreas Persson   * Copyright (c) 2014 - 2017 Christian Schoenebeck and Andreas Persson
3   *   *
4   * http://www.linuxsampler.org   * http://www.linuxsampler.org
5   *   *
# Line 35  String IntExpr::evalCastToStr() { Line 35  String IntExpr::evalCastToStr() {
35      return ToString(evalInt());      return ToString(evalInt());
36  }  }
37    
38    /*String IntArrayExpr::evalCastToStr() {
39        String s = "{";
40        for (int i = 0; i < arraySize(); ++i) {
41            int val = evalIntElement(i);
42            if (i) s += ",";
43            s += ToString(val);
44        }
45        s += "}";
46        return s;
47    }*/
48    
49  int IntLiteral::evalInt() {  int IntLiteral::evalInt() {
50      return value;      return value;
51  }  }
# Line 102  void Mul::dump(int level) { Line 113  void Mul::dump(int level) {
113    
114  int Div::evalInt() {  int Div::evalInt() {
115      IntExpr* pLHS = dynamic_cast<IntExpr*>(&*lhs);      IntExpr* pLHS = dynamic_cast<IntExpr*>(&*lhs);
116      IntExpr* pRHS = dynamic_cast<IntExpr*>(&*rhs);;      IntExpr* pRHS = dynamic_cast<IntExpr*>(&*rhs);
117      return (pLHS && pRHS) ? pRHS->evalInt() == 0 ? 0 : pLHS->evalInt() / pRHS->evalInt() : 0;      if (!pLHS || !pRHS) return 0;
118        int l = pLHS->evalInt();
119        int r = pRHS->evalInt();
120        if (r == 0) return 0;
121        return l / r;
122  }  }
123    
124  void Div::dump(int level) {  void Div::dump(int level) {
# Line 243  bool Statements::isPolyphonic() const { Line 258  bool Statements::isPolyphonic() const {
258      return false;      return false;
259  }  }
260    
261    DynamicVariableCall::DynamicVariableCall(const String& name, ParserContext* ctx, VMDynVar* v)
262        : Variable(ctx, 0, false), dynVar(v), varName(name)
263    {
264    }
265    
266    int DynamicVariableCall::evalInt() {
267        VMIntExpr* expr = dynamic_cast<VMIntExpr*>(dynVar);
268        if (!expr) return 0;
269        return expr->evalInt();
270    }
271    
272    String DynamicVariableCall::evalStr() {
273        VMStringExpr* expr = dynamic_cast<VMStringExpr*>(dynVar);
274        if (!expr) return "";
275        return expr->evalStr();
276    }
277    
278    String DynamicVariableCall::evalCastToStr() {
279        if (dynVar->exprType() == STRING_EXPR) {
280            return evalStr();
281        } else {
282            VMIntExpr* intExpr = dynamic_cast<VMIntExpr*>(dynVar);
283            return intExpr ? ToString(intExpr->evalInt()) : "";
284        }
285    }
286    
287    void DynamicVariableCall::dump(int level) {
288        printIndents(level);
289        printf("Dynamic Variable '%s'\n", varName.c_str());
290    }
291    
292  void FunctionCall::dump(int level) {  void FunctionCall::dump(int level) {
293      printIndents(level);      printIndents(level);
294      printf("FunctionCall '%s' args={\n", functionName.c_str());      printf("FunctionCall '%s' args={\n", functionName.c_str());
# Line 278  int FunctionCall::evalInt() { Line 324  int FunctionCall::evalInt() {
324      return intExpr->evalInt();      return intExpr->evalInt();
325  }  }
326    
327    VMIntArrayExpr* FunctionCall::asIntArray() const {
328        VMFnResult* result = const_cast<FunctionCall*>(this)->execVMFn();
329        if (!result) return 0;
330        VMIntArrayExpr* intArrExpr = dynamic_cast<VMIntArrayExpr*>(result->resultValue());
331        return intArrExpr;
332    }
333    
334  String FunctionCall::evalStr() {  String FunctionCall::evalStr() {
335      VMFnResult* result = execVMFn();      VMFnResult* result = execVMFn();
336      if (!result) return "";      if (!result) return "";
# Line 324  IntVariable::IntVariable(ParserContext* Line 377  IntVariable::IntVariable(ParserContext*
377    
378  void IntVariable::assign(Expression* expr) {  void IntVariable::assign(Expression* expr) {
379      IntExpr* intExpr = dynamic_cast<IntExpr*>(expr);      IntExpr* intExpr = dynamic_cast<IntExpr*>(expr);
380      if (intExpr)      if (intExpr) {
381          if (polyphonic)          if (polyphonic)
382              context->execContext->polyphonicIntMemory[memPos] = intExpr->evalInt();              context->execContext->polyphonicIntMemory[memPos] = intExpr->evalInt();
383          else          else
384              (*context->globalIntMemory)[memPos] = intExpr->evalInt();              (*context->globalIntMemory)[memPos] = intExpr->evalInt();
385        }
386  }  }
387    
388  int IntVariable::evalInt() {  int IntVariable::evalInt() {
# Line 342  int IntVariable::evalInt() { Line 396  int IntVariable::evalInt() {
396    
397  void IntVariable::dump(int level) {  void IntVariable::dump(int level) {
398      printIndents(level);      printIndents(level);
399        printf("IntVariable\n");
400      //printf("IntVariable memPos=%d\n", memPos);      //printf("IntVariable memPos=%d\n", memPos);
401  }  }
402    
# Line 408  IntArrayVariable::IntArrayVariable(Parse Line 463  IntArrayVariable::IntArrayVariable(Parse
463      memset(&values[0], 0, size * sizeof(int));      memset(&values[0], 0, size * sizeof(int));
464  }  }
465    
466  IntArrayVariable::IntArrayVariable(ParserContext* ctx, int size, ArgsRef values)  IntArrayVariable::IntArrayVariable(ParserContext* ctx, int size, ArgsRef values, bool _bConst)
467      : Variable(ctx, 0, false)      : Variable(ctx, 0, _bConst)
468  {  {
469      this->values.resize(size);      this->values.resize(size);
470      for (int i = 0; i < values->argsCount(); ++i) {      for (int i = 0; i < values->argsCount(); ++i) {
# Line 669  bool While::evalLoopStartCondition() { Line 724  bool While::evalLoopStartCondition() {
724      return m_condition->evalInt();      return m_condition->evalInt();
725  }  }
726    
727    void SyncBlock::dump(int level) {
728        printIndents(level);
729        printf("sync {\n");
730        m_statements->dump(level+1);
731        printIndents(level);
732        printf("}\n");
733    }
734    
735    Statements* SyncBlock::statements() const {
736        return (m_statements) ? const_cast<Statements*>( &*m_statements ) : NULL;
737    }
738    
739  void Neg::dump(int level) {  void Neg::dump(int level) {
740      printIndents(level);      printIndents(level);
741      printf("Negative Expr\n");      printf("Negative Expr\n");
742  }  }
743    
744  String ConcatString::evalStr() {  String ConcatString::evalStr() {
745      return lhs->evalCastToStr() + rhs->evalCastToStr();      // temporaries required here to enforce the associative left (to right) order
746        // ( required for GCC and Visual Studio, see:
747        //   http://stackoverflow.com/questions/25842902/why-stdstring-concatenation-operator-works-like-right-associative-one
748        //   Personally I am not convinced that this is "not a bug" of the
749        //   compiler/STL implementation and the allegedly underlying "function call"
750        //   nature causing this is IMO no profound reason that the C++ language's
751        //   "+" operator's left associativity is ignored. -- Christian, 2016-07-14 )
752        String l = lhs->evalCastToStr();
753        String r = rhs->evalCastToStr();
754        return l + r;
755  }  }
756    
757  void ConcatString::dump(int level) {  void ConcatString::dump(int level) {
# Line 837  void BitwiseNot::dump(int level) { Line 913  void BitwiseNot::dump(int level) {
913      printf(")\n");      printf(")\n");
914  }  }
915    
916    StatementsRef ParserContext::userFunctionByName(const String& name) {
917        if (!userFnTable.count(name)) {
918            return StatementsRef();
919        }
920        return userFnTable.find(name)->second;
921    }
922    
923  VariableRef ParserContext::variableByName(const String& name) {  VariableRef ParserContext::variableByName(const String& name) {
924      if (!vartable.count(name)) {      if (!vartable.count(name)) {
925          return VariableRef();          return VariableRef();
# Line 961  void ParserContext::registerBuiltInIntAr Line 1044  void ParserContext::registerBuiltInIntAr
1044          vartable[it->first] = ref;          vartable[it->first] = ref;
1045      }      }
1046  }  }
1047    
1048    void ParserContext::registerBuiltInDynVariables(const std::map<String,VMDynVar*>& vars) {
1049        for (std::map<String,VMDynVar*>::const_iterator it = vars.begin();
1050             it != vars.end(); ++it)
1051        {
1052            DynamicVariableCallRef ref = new DynamicVariableCall(it->first, this, it->second);
1053            vartable[it->first] = ref;
1054        }
1055    }
1056    
1057  } // namespace LinuxSampler  } // namespace LinuxSampler
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