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

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revision 2888 by schoenebeck, Sun Apr 24 18:16:10 2016 UTC revision 3034 by schoenebeck, Mon Oct 31 00:05:00 2016 UTC
# Line 1  Line 1 
1  /*  /*
2   * Copyright (c) 2014 Christian Schoenebeck and Andreas Persson   * Copyright (c) 2014 - 2016 Christian Schoenebeck and Andreas Persson
3   *   *
4   * http://www.linuxsampler.org   * http://www.linuxsampler.org
5   *   *
# Line 102  void Mul::dump(int level) { Line 102  void Mul::dump(int level) {
102    
103  int Div::evalInt() {  int Div::evalInt() {
104      IntExpr* pLHS = dynamic_cast<IntExpr*>(&*lhs);      IntExpr* pLHS = dynamic_cast<IntExpr*>(&*lhs);
105      IntExpr* pRHS = dynamic_cast<IntExpr*>(&*rhs);;      IntExpr* pRHS = dynamic_cast<IntExpr*>(&*rhs);
106      return (pLHS && pRHS) ? pRHS->evalInt() == 0 ? 0 : pLHS->evalInt() / pRHS->evalInt() : 0;      if (!pLHS || !pRHS) return 0;
107        int l = pLHS->evalInt();
108        int r = pRHS->evalInt();
109        if (r == 0) return 0;
110        return l / r;
111  }  }
112    
113  void Div::dump(int level) {  void Div::dump(int level) {
# Line 243  bool Statements::isPolyphonic() const { Line 247  bool Statements::isPolyphonic() const {
247      return false;      return false;
248  }  }
249    
250    DynamicVariableCall::DynamicVariableCall(const String& name, ParserContext* ctx, VMDynVar* v)
251        : Variable(ctx, 0, false), dynVar(v), varName(name)
252    {
253    }
254    
255    int DynamicVariableCall::evalInt() {
256        VMIntExpr* expr = dynamic_cast<VMIntExpr*>(dynVar);
257        if (!expr) return 0;
258        return expr->evalInt();
259    }
260    
261    String DynamicVariableCall::evalStr() {
262        VMStringExpr* expr = dynamic_cast<VMStringExpr*>(dynVar);
263        if (!expr) return "";
264        return expr->evalStr();
265    }
266    
267    String DynamicVariableCall::evalCastToStr() {
268        if (dynVar->exprType() == STRING_EXPR) {
269            return evalStr();
270        } else {
271            VMIntExpr* intExpr = dynamic_cast<VMIntExpr*>(dynVar);
272            return intExpr ? ToString(intExpr->evalInt()) : "";
273        }
274    }
275    
276    void DynamicVariableCall::dump(int level) {
277        printIndents(level);
278        printf("Dynamic Variable '%s'\n", varName.c_str());
279    }
280    
281  void FunctionCall::dump(int level) {  void FunctionCall::dump(int level) {
282      printIndents(level);      printIndents(level);
283      printf("FunctionCall '%s' args={\n", functionName.c_str());      printf("FunctionCall '%s' args={\n", functionName.c_str());
# Line 324  IntVariable::IntVariable(ParserContext* Line 359  IntVariable::IntVariable(ParserContext*
359    
360  void IntVariable::assign(Expression* expr) {  void IntVariable::assign(Expression* expr) {
361      IntExpr* intExpr = dynamic_cast<IntExpr*>(expr);      IntExpr* intExpr = dynamic_cast<IntExpr*>(expr);
362      if (intExpr)      if (intExpr) {
363          if (polyphonic)          if (polyphonic)
364              context->execContext->polyphonicIntMemory[memPos] = intExpr->evalInt();              context->execContext->polyphonicIntMemory[memPos] = intExpr->evalInt();
365          else          else
366              (*context->globalIntMemory)[memPos] = intExpr->evalInt();              (*context->globalIntMemory)[memPos] = intExpr->evalInt();
367        }
368  }  }
369    
370  int IntVariable::evalInt() {  int IntVariable::evalInt() {
# Line 342  int IntVariable::evalInt() { Line 378  int IntVariable::evalInt() {
378    
379  void IntVariable::dump(int level) {  void IntVariable::dump(int level) {
380      printIndents(level);      printIndents(level);
381        printf("IntVariable\n");
382      //printf("IntVariable memPos=%d\n", memPos);      //printf("IntVariable memPos=%d\n", memPos);
383  }  }
384    
# Line 675  void Neg::dump(int level) { Line 712  void Neg::dump(int level) {
712  }  }
713    
714  String ConcatString::evalStr() {  String ConcatString::evalStr() {
715      return lhs->evalCastToStr() + rhs->evalCastToStr();      // temporaries required here to enforce the associative left (to right) order
716        // ( required for GCC and Visual Studio, see:
717        //   http://stackoverflow.com/questions/25842902/why-stdstring-concatenation-operator-works-like-right-associative-one
718        //   Personally I am not convinced that this is "not a bug" of the
719        //   compiler/STL implementation and the allegedly underlying "function call"
720        //   nature causing this is IMO no profound reason that the C++ language's
721        //   "+" operator's left associativity is ignored. -- Christian, 2016-07-14 )
722        String l = lhs->evalCastToStr();
723        String r = rhs->evalCastToStr();
724        return l + r;
725  }  }
726    
727  void ConcatString::dump(int level) {  void ConcatString::dump(int level) {
# Line 769  void Or::dump(int level) { Line 815  void Or::dump(int level) {
815      printf(")\n");      printf(")\n");
816  }  }
817    
818    int BitwiseOr::evalInt() {
819        IntExpr* pLHS = dynamic_cast<IntExpr*>(&*lhs);
820        IntExpr* pRHS = dynamic_cast<IntExpr*>(&*rhs);
821        return pLHS->evalInt() | pRHS->evalInt();
822    }
823    
824    void BitwiseOr::dump(int level) {
825        printIndents(level);
826        printf("BitwiseOr(\n");
827        lhs->dump(level+1);
828        printIndents(level);
829        printf(",\n");
830        rhs->dump(level+1);
831        printIndents(level);
832        printf(")\n");
833    }
834    
835  int And::evalInt() {  int And::evalInt() {
836      IntExpr* pLHS = dynamic_cast<IntExpr*>(&*lhs);      IntExpr* pLHS = dynamic_cast<IntExpr*>(&*lhs);
837      if (!pLHS->evalInt()) return 0;      if (!pLHS->evalInt()) return 0;
# Line 787  void And::dump(int level) { Line 850  void And::dump(int level) {
850      printf(")\n");      printf(")\n");
851  }  }
852    
853    int BitwiseAnd::evalInt() {
854        IntExpr* pLHS = dynamic_cast<IntExpr*>(&*lhs);
855        IntExpr* pRHS = dynamic_cast<IntExpr*>(&*rhs);
856        return pLHS->evalInt() & pRHS->evalInt();
857    }
858    
859    void BitwiseAnd::dump(int level) {
860        printIndents(level);
861        printf("BitwiseAnd(\n");
862        lhs->dump(level+1);
863        printIndents(level);
864        printf(",\n");
865        rhs->dump(level+1);
866        printIndents(level);
867        printf(")\n");
868    }
869    
870  void Not::dump(int level) {  void Not::dump(int level) {
871      printIndents(level);      printIndents(level);
872      printf("Not(\n");      printf("Not(\n");
# Line 795  void Not::dump(int level) { Line 875  void Not::dump(int level) {
875      printf(")\n");      printf(")\n");
876  }  }
877    
878    void BitwiseNot::dump(int level) {
879        printIndents(level);
880        printf("BitwiseNot(\n");
881        expr->dump(level+1);
882        printIndents(level);
883        printf(")\n");
884    }
885    
886    StatementsRef ParserContext::userFunctionByName(const String& name) {
887        if (!userFnTable.count(name)) {
888            return StatementsRef();
889        }
890        return userFnTable.find(name)->second;
891    }
892    
893  VariableRef ParserContext::variableByName(const String& name) {  VariableRef ParserContext::variableByName(const String& name) {
894      if (!vartable.count(name)) {      if (!vartable.count(name)) {
895          return VariableRef();          return VariableRef();
# Line 828  ParserContext::~ParserContext() { Line 923  ParserContext::~ParserContext() {
923      }      }
924  }  }
925    
926  void ParserContext::addErr(int line, int column, const char* txt) {  void ParserContext::addErr(int firstLine, int lastLine, int firstColumn, int lastColumn, const char* txt) {
927      ParserIssue e;      ParserIssue e;
928      e.type = PARSER_ERROR;      e.type = PARSER_ERROR;
929      e.txt = txt;      e.txt = txt;
930      e.line = line;      e.firstLine = firstLine;
931      e.column = column;      e.lastLine = lastLine;
932        e.firstColumn = firstColumn;
933        e.lastColumn = lastColumn;
934      vErrors.push_back(e);      vErrors.push_back(e);
935      vIssues.push_back(e);      vIssues.push_back(e);
936  }  }
937    
938  void ParserContext::addWrn(int line, int column, const char* txt) {  void ParserContext::addWrn(int firstLine, int lastLine, int firstColumn, int lastColumn, const char* txt) {
939      ParserIssue w;      ParserIssue w;
940      w.type = PARSER_WARNING;      w.type = PARSER_WARNING;
941      w.txt = txt;      w.txt = txt;
942      w.line = line;      w.firstLine = firstLine;
943      w.column = column;      w.lastLine = lastLine;
944        w.firstColumn = firstColumn;
945        w.lastColumn = lastColumn;
946      vWarnings.push_back(w);      vWarnings.push_back(w);
947      vIssues.push_back(w);      vIssues.push_back(w);
948  }  }
# Line 915  void ParserContext::registerBuiltInIntAr Line 1014  void ParserContext::registerBuiltInIntAr
1014          vartable[it->first] = ref;          vartable[it->first] = ref;
1015      }      }
1016  }  }
1017    
1018    void ParserContext::registerBuiltInDynVariables(const std::map<String,VMDynVar*>& vars) {
1019        for (std::map<String,VMDynVar*>::const_iterator it = vars.begin();
1020             it != vars.end(); ++it)
1021        {
1022            DynamicVariableCallRef ref = new DynamicVariableCall(it->first, this, it->second);
1023            vartable[it->first] = ref;
1024        }
1025    }
1026    
1027  } // namespace LinuxSampler  } // namespace LinuxSampler
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