/[svn]/linuxsampler/trunk/src/scriptvm/tree.cpp
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revision 2888 by schoenebeck, Sun Apr 24 18:16:10 2016 UTC revision 3285 by schoenebeck, Thu Jun 22 10:45:38 2017 UTC
# Line 1  Line 1 
1  /*  /*
2   * Copyright (c) 2014 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 769  void Or::dump(int level) { Line 845  void Or::dump(int level) {
845      printf(")\n");      printf(")\n");
846  }  }
847    
848    int BitwiseOr::evalInt() {
849        IntExpr* pLHS = dynamic_cast<IntExpr*>(&*lhs);
850        IntExpr* pRHS = dynamic_cast<IntExpr*>(&*rhs);
851        return pLHS->evalInt() | pRHS->evalInt();
852    }
853    
854    void BitwiseOr::dump(int level) {
855        printIndents(level);
856        printf("BitwiseOr(\n");
857        lhs->dump(level+1);
858        printIndents(level);
859        printf(",\n");
860        rhs->dump(level+1);
861        printIndents(level);
862        printf(")\n");
863    }
864    
865  int And::evalInt() {  int And::evalInt() {
866      IntExpr* pLHS = dynamic_cast<IntExpr*>(&*lhs);      IntExpr* pLHS = dynamic_cast<IntExpr*>(&*lhs);
867      if (!pLHS->evalInt()) return 0;      if (!pLHS->evalInt()) return 0;
# Line 787  void And::dump(int level) { Line 880  void And::dump(int level) {
880      printf(")\n");      printf(")\n");
881  }  }
882    
883    int BitwiseAnd::evalInt() {
884        IntExpr* pLHS = dynamic_cast<IntExpr*>(&*lhs);
885        IntExpr* pRHS = dynamic_cast<IntExpr*>(&*rhs);
886        return pLHS->evalInt() & pRHS->evalInt();
887    }
888    
889    void BitwiseAnd::dump(int level) {
890        printIndents(level);
891        printf("BitwiseAnd(\n");
892        lhs->dump(level+1);
893        printIndents(level);
894        printf(",\n");
895        rhs->dump(level+1);
896        printIndents(level);
897        printf(")\n");
898    }
899    
900  void Not::dump(int level) {  void Not::dump(int level) {
901      printIndents(level);      printIndents(level);
902      printf("Not(\n");      printf("Not(\n");
# Line 795  void Not::dump(int level) { Line 905  void Not::dump(int level) {
905      printf(")\n");      printf(")\n");
906  }  }
907    
908    void BitwiseNot::dump(int level) {
909        printIndents(level);
910        printf("BitwiseNot(\n");
911        expr->dump(level+1);
912        printIndents(level);
913        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 828  ParserContext::~ParserContext() { Line 953  ParserContext::~ParserContext() {
953      }      }
954  }  }
955    
956  void ParserContext::addErr(int line, int column, const char* txt) {  void ParserContext::addErr(int firstLine, int lastLine, int firstColumn, int lastColumn, const char* txt) {
957      ParserIssue e;      ParserIssue e;
958      e.type = PARSER_ERROR;      e.type = PARSER_ERROR;
959      e.txt = txt;      e.txt = txt;
960      e.line = line;      e.firstLine = firstLine;
961      e.column = column;      e.lastLine = lastLine;
962        e.firstColumn = firstColumn;
963        e.lastColumn = lastColumn;
964      vErrors.push_back(e);      vErrors.push_back(e);
965      vIssues.push_back(e);      vIssues.push_back(e);
966  }  }
967    
968  void ParserContext::addWrn(int line, int column, const char* txt) {  void ParserContext::addWrn(int firstLine, int lastLine, int firstColumn, int lastColumn, const char* txt) {
969      ParserIssue w;      ParserIssue w;
970      w.type = PARSER_WARNING;      w.type = PARSER_WARNING;
971      w.txt = txt;      w.txt = txt;
972      w.line = line;      w.firstLine = firstLine;
973      w.column = column;      w.lastLine = lastLine;
974        w.firstColumn = firstColumn;
975        w.lastColumn = lastColumn;
976      vWarnings.push_back(w);      vWarnings.push_back(w);
977      vIssues.push_back(w);      vIssues.push_back(w);
978  }  }
979    
980    void ParserContext::addPreprocessorComment(int firstLine, int lastLine, int firstColumn, int lastColumn) {
981        CodeBlock block;
982        block.firstLine = firstLine;
983        block.lastLine = lastLine;
984        block.firstColumn = firstColumn;
985        block.lastColumn = lastColumn;
986        vPreprocessorComments.push_back(block);
987    }
988    
989  bool ParserContext::setPreprocessorCondition(const char* name) {  bool ParserContext::setPreprocessorCondition(const char* name) {
990      if (builtinPreprocessorConditions.count(name)) return false;      if (builtinPreprocessorConditions.count(name)) return false;
991      if (userPreprocessorConditions.count(name)) return false;      if (userPreprocessorConditions.count(name)) return false;
# Line 879  std::vector<ParserIssue> ParserContext:: Line 1017  std::vector<ParserIssue> ParserContext::
1017      return vWarnings;      return vWarnings;
1018  }  }
1019    
1020    std::vector<CodeBlock> ParserContext::preprocessorComments() const {
1021        return vPreprocessorComments;
1022    }
1023    
1024  VMEventHandler* ParserContext::eventHandler(uint index) {  VMEventHandler* ParserContext::eventHandler(uint index) {
1025      if (!handlers) return NULL;      if (!handlers) return NULL;
1026      return handlers->eventHandler(index);      return handlers->eventHandler(index);
# Line 915  void ParserContext::registerBuiltInIntAr Line 1057  void ParserContext::registerBuiltInIntAr
1057          vartable[it->first] = ref;          vartable[it->first] = ref;
1058      }      }
1059  }  }
1060    
1061    void ParserContext::registerBuiltInDynVariables(const std::map<String,VMDynVar*>& vars) {
1062        for (std::map<String,VMDynVar*>::const_iterator it = vars.begin();
1063             it != vars.end(); ++it)
1064        {
1065            DynamicVariableCallRef ref = new DynamicVariableCall(it->first, this, it->second);
1066            vartable[it->first] = ref;
1067        }
1068    }
1069    
1070  } // namespace LinuxSampler  } // namespace LinuxSampler
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