C# Emitter.EmitLoadInt方法代码示例

        public override void Compile(Emitter.Emitter emitter)
        {
            var method = emitter.AssemblyImport(typeof(MirelleStdlib.Events.Simulation).GetMethod("Process", new[] { typeof(int), typeof(int) }));

              // processor count
              if(Processors == null)
            emitter.EmitLoadInt(1);
              else
              {
            if(Processors.GetExpressionType(emitter) != "int")
              Error(Resources.errSimulateProcessorsInt);

            Processors.Compile(emitter);
              }

              // queue length
              if(MaxQueue == null)
            emitter.EmitLoadInt(0);
              else
              {
            if(MaxQueue.GetExpressionType(emitter) != "int")
              Error(Resources.errSimulateQueueInt);

            MaxQueue.Compile(emitter);
              }

              emitter.EmitCall(method);
        }

        /// <summary>
        /// Create iteration code for an array
        /// </summary>
        /// <param name="emitter"></param>
        public void CompileArray(Emitter.Emitter emitter)
        {
            var iterType = Iterable.GetExpressionType(emitter);

              // make local variables only visible inside the scope
              emitter.CurrentMethod.Scope.EnterSubScope();
              var idxVar = emitter.CurrentMethod.Scope.Introduce("int", emitter.ResolveType("int"), Key == null ? null : Key.Data);
              var arrVar = emitter.CurrentMethod.Scope.Introduce(iterType, emitter.ResolveType(iterType));
              var currType = emitter.GetArrayItemType(iterType);
              var currVar = emitter.CurrentMethod.Scope.Introduce(currType, emitter.ResolveType(currType), Item.Data);

              // prelude: arr = ..., idx = -1
              Iterable.Compile(emitter);
              emitter.EmitSaveVariable(arrVar);
              emitter.EmitLoadInt(-1);
              emitter.EmitSaveVariable(idxVar);

              emitter.PlaceLabel(BodyStart);

              // increment
              emitter.EmitLoadVariable(idxVar);
              emitter.EmitLoadInt(1);
              emitter.EmitAdd();
              emitter.EmitSaveVariable(idxVar);

              // loop exit condition
              emitter.EmitLoadVariable(idxVar);
              emitter.EmitLoadVariable(arrVar);
              emitter.EmitLoadArraySize();
              emitter.EmitCompareLess();
              emitter.EmitBranchFalse(BodyEnd);

              // variable: curr = array[idx]
              emitter.EmitLoadVariable(arrVar);
              emitter.EmitLoadVariable(idxVar);
              emitter.EmitLoadIndex(currType);
              emitter.EmitSaveVariable(currVar);

              // body
              var preCurrLoop = emitter.CurrentLoop;
              emitter.CurrentLoop = this;
              Body.Compile(emitter);
              emitter.CurrentLoop = preCurrLoop;

              emitter.EmitBranch(BodyStart);

              emitter.PlaceLabel(BodyEnd);
              emitter.CurrentMethod.Scope.LeaveSubScope();
        }

        public override void Compile(Emitter.Emitter emitter)
        {
            // retrieve matrix dimensions
              var height = MatrixItems.Count;
              var width = MatrixItems[0].Count;

              // retrieve info about matrices
              var matrixType = typeof(MN.DenseMatrix);
              var matrixCtor = emitter.AssemblyImport(matrixType.GetConstructor(new[] { typeof(int), typeof(int) }));
              var matrixSet = emitter.AssemblyImport(matrixType.GetMethod("At", new[] { typeof(int), typeof(int), typeof(double) }));

              var tmpVar = emitter.CurrentMethod.Scope.Introduce("matrix", emitter.AssemblyImport(matrixType));

              // create matrix
              emitter.EmitLoadInt(height);
              emitter.EmitLoadInt(width);
              emitter.EmitNewObj(matrixCtor);
              emitter.EmitSaveVariable(tmpVar);

              // set items
              for(var idx1 = 0; idx1 < MatrixItems.Count; idx1++)
              {
            // ensure all lines have the same number of items
            if (idx1 > 0 && MatrixItems[0].Count != MatrixItems[idx1].Count)
              Error(String.Format(Resources.errMatrixLineLengthMismatch, MatrixItems[0].Count, idx1+1, MatrixItems[idx1].Count));

            for(var idx2 = 0; idx2 < MatrixItems[idx1].Count; idx2++)
            {
              var item = MatrixItems[idx1][idx2];
              var itemType = item.GetExpressionType(emitter);
              if (!itemType.IsAnyOf("int", "float"))
            Error(Resources.errMatrixItemTypeMismatch, item.Lexem);

              emitter.EmitLoadVariable(tmpVar);

              emitter.EmitLoadInt(idx1);
              emitter.EmitLoadInt(idx2);
              item.Compile(emitter);

              if (itemType != "float")
            emitter.EmitConvertToFloat();

              emitter.EmitCall(matrixSet);
            }
              }

              emitter.EmitLoadVariable(tmpVar);
        }

        public override void Compile(Emitter.Emitter emitter)
        {
            var args = new[] { Parameters.Count == 1 ? typeof(object) : typeof(IEnumerable<dynamic>), typeof(bool) };
              var printMethod = emitter.AssemblyImport(typeof(MirelleStdlib.Printer).GetMethod("Print", args));

              if (Parameters.Count == 1)
              {
            var currType = Parameters[0].GetExpressionType(emitter);
            Parameters[0].Compile(emitter);
            if (currType.IsAnyOf("int", "bool", "float", "complex"))
              emitter.EmitBox(emitter.ResolveType(currType));
              }
              else
              {
            var objType = emitter.AssemblyImport(typeof(object));
            var arrType = new ArrayType(objType);

            var tmpVariable = emitter.CurrentMethod.Scope.Introduce("object[]", arrType);

            // load count & create
            emitter.EmitLoadInt(Parameters.Count);
            emitter.EmitNewArray(objType);
            emitter.EmitSaveVariable(tmpVariable);

            int idx = 0;
            foreach (var curr in Parameters)
            {
              var currType = curr.GetExpressionType(emitter);
              emitter.EmitLoadVariable(tmpVariable);
              emitter.EmitLoadInt(idx);
              curr.Compile(emitter);

              if (currType.IsAnyOf("int", "bool", "float", "complex"))
            emitter.EmitBox(emitter.ResolveType(currType));

              emitter.EmitSaveIndex("object");

              idx++;
            }

            // return the created array
            emitter.EmitLoadVariable(tmpVariable);
              }

              emitter.EmitLoadBool(PrintLine);
              emitter.EmitCall(printMethod);
        }

        public override void Compile(Emitter.Emitter emitter)
        {
            var typeName = Values[0].GetExpressionType(emitter);
              if (typeName == "null")
            Error(Resources.errArrayItemNull, Values[0].Lexem);
              if (typeName.IsAnyOf("", "void"))
            Error(Resources.errVoidExpression, Values[0].Lexem);

              TypeReference type;
              try
              {
            type = emitter.ResolveType(typeName);
              }
              catch (CompilerException ex)
              {
            ex.AffixToLexem(Values[0].Lexem);
            throw;
              }
              var tmpVariable = emitter.CurrentMethod.Scope.Introduce(typeName, emitter.ResolveType(typeName + "[]"));

              // load count & create
              emitter.EmitLoadInt(Values.Count);
              emitter.EmitNewArray(type);
              emitter.EmitSaveVariable(tmpVariable);

              int idx = 0;
              foreach (var curr in Values)
              {
            var currType = curr.GetExpressionType(emitter);
            if (currType != typeName)
              Error(String.Format(Resources.errArrayTypeMismatch, currType, typeName), curr.Lexem);

            emitter.EmitLoadVariable(tmpVariable);
            emitter.EmitLoadInt(idx);
            curr.Compile(emitter);
            emitter.EmitSaveIndex(typeName);

            idx++;
              }

              // return the created array
              emitter.EmitLoadVariable(tmpVariable);
        }

        public override void Compile(Emitter.Emitter emitter)
        {
            var type = Expression.GetExpressionType(emitter);
              if (type.IsAnyOf("int", "float", "complex"))
              {
            if(type == "complex")
            {
              // simple case: the complex is a constant
              if(Expression is ComplexNode)
              {
            (Expression as ComplexNode).Imaginary *= -1;
            Expression.Compile(emitter);
              }
              // complex case: complex is an expression result
              else
              {
            Expression.Compile(emitter);

            // tmp = ...
            var tmpVar = emitter.CurrentMethod.Scope.Introduce("complex", emitter.FindType("complex").Type);
            emitter.EmitSaveVariable(tmpVar);

            // tmp.real
            emitter.EmitLoadVariableAddress(tmpVar);
            emitter.EmitCall(emitter.AssemblyImport(typeof(SN.Complex).GetMethod("get_Real")));

            // tmp.imaginary * -1
            emitter.EmitLoadVariableAddress(tmpVar);
            emitter.EmitCall(emitter.AssemblyImport(typeof(SN.Complex).GetMethod("get_Imaginary")));
            emitter.EmitLoadFloat(-1);
            emitter.EmitMul();

            // new complex
            emitter.EmitNewObj(emitter.FindMethod("complex", ".ctor", "float", "float"));
              }
            }
            else
            {
              // multiply by -1
              Expression.Compile(emitter);
              if (type == "int")
            emitter.EmitLoadInt(-1);
              else
            emitter.EmitLoadFloat(-1);
              emitter.EmitMul();
            }
              }
              else
            Error(String.Format(Resources.errInvertType, type));
        }

 public override void Compile(Emitter.Emitter emitter)
 {
     var method = typeof(Environment).GetMethod("Exit", new[] { typeof(int) });
       emitter.EmitLoadInt(0);
       emitter.EmitCall(emitter.AssemblyImport(method));
 }

 public override void Compile(Emitter.Emitter emitter)
 {
     emitter.EmitLoadInt(Value);
 }

        public override void Compile(Emitter.Emitter emitter)
        {
            // make sure there is an array
              var exprType = Expression.GetExpressionType(emitter);
              if (!exprType.Contains("[]"))
            Error(Resources.errSplatArrayExpected);

              // define required variables
              var type = emitter.GetArrayItemType(exprType);
              var typeRef = emitter.ResolveType(type);
              var idx = 0;
              var tmpVar = emitter.CurrentMethod.Scope.Introduce(exprType, emitter.ResolveType(exprType));

              // compile array
              Expression.Compile(emitter);
              emitter.EmitSaveVariable(tmpVar);

              foreach(var curr in Names)
              {
            // check for variable redefinition
            if (emitter.CurrentMethod.Scope.Exists(curr.Data))
              Error(String.Format(Resources.errVariableRedefinition, curr.Data), curr);

            var varDecl = emitter.CurrentMethod.Scope.Introduce(type, emitter.ResolveType(type), curr.Data);
            var elseLabel = emitter.CreateLabel();
            var endLabel = emitter.CreateLabel();

            // make sure the array is not a null
            emitter.EmitLoadNull();
            emitter.EmitLoadVariable(tmpVar);
            emitter.EmitCompareEqual();
            emitter.EmitBranchTrue(elseLabel);

            // make sure there are items in the array
            emitter.EmitLoadInt(idx);
            emitter.EmitLoadVariable(tmpVar);
            emitter.EmitLoadArraySize();
            emitter.EmitCompareLess();
            emitter.EmitBranchFalse(elseLabel);

            // retrieve the current value
            emitter.EmitLoadVariable(tmpVar);
            emitter.EmitLoadInt(idx);
            if(type == "complex")
            {
              emitter.EmitLoadIndexAddress(typeRef);
              emitter.EmitLoadObject(typeRef);
            }
            else
              emitter.EmitLoadIndex(type);
            emitter.EmitBranch(endLabel);

            // or create a default
            emitter.PlaceLabel(elseLabel);
            emitter.EmitLoadDefaultValue(type);

            // assign the variable
            emitter.PlaceLabel(endLabel);
            emitter.EmitSaveVariable(varDecl);

            idx++;
              }
        }

        /// <summary>
        /// Create iteration code for a range
        /// </summary>
        /// <param name="emitter"></param>
        public void CompileRange(Emitter.Emitter emitter)
        {
            // make local variables only visible inside the scope
              emitter.CurrentMethod.Scope.EnterSubScope();
              var idxVar = emitter.CurrentMethod.Scope.Introduce("int", emitter.ResolveType("int"), Key == null ? null : Key.Data);
              var rangeVar = emitter.CurrentMethod.Scope.Introduce("range", emitter.ResolveType("range"));
              var currVar = emitter.CurrentMethod.Scope.Introduce("int", emitter.ResolveType("int"), Item.Data);

              // preface: range = ..., range.reset
              Iterable.Compile(emitter);
              emitter.EmitSaveVariable(rangeVar);
              emitter.EmitLoadVariable(rangeVar);
              emitter.EmitCall(emitter.FindMethod("range", "reset"));

              // set key if exists
              if(Key != null)
              {
            emitter.EmitLoadInt(-1);
            emitter.EmitSaveVariable(idxVar);
              }

              // range.next == false ? exit
              emitter.PlaceLabel(BodyStart);
              emitter.EmitLoadVariable(rangeVar);
              emitter.EmitCall(emitter.FindMethod("range", "next"));
              emitter.EmitLoadBool(false);
              emitter.EmitCompareEqual();
              emitter.EmitBranchTrue(BodyEnd);

              // curr = range.current
              emitter.EmitLoadVariable(rangeVar);
              emitter.EmitCall(emitter.FindMethod("range", "current"));
              emitter.EmitSaveVariable(currVar);

              // increment key if exists
              if(Key != null)
              {
            emitter.EmitLoadVariable(idxVar);
            emitter.EmitLoadInt(1);
            emitter.EmitAdd();
            emitter.EmitSaveVariable(idxVar);
              }

              // body
              var preCurrLoop = emitter.CurrentLoop;
              emitter.CurrentLoop = this;
              Body.Compile(emitter);
              emitter.CurrentLoop = preCurrLoop;

              emitter.EmitBranch(BodyStart);

              emitter.PlaceLabel(BodyEnd);
              emitter.CurrentMethod.Scope.LeaveSubScope();
        }

        /// <summary>
        /// Create iteration code for a dictionary
        /// </summary>
        /// <param name="emitter"></param>
        public void CompileDict(Emitter.Emitter emitter)
        {
            // check if key defined
              if (Key == null)
            Error(Resources.errDictIterKeyRequired);

              // make local variables only visible inside the scope
              emitter.CurrentMethod.Scope.EnterSubScope();
              var dictVar = emitter.CurrentMethod.Scope.Introduce("dict", emitter.ResolveType("dict"));
              var currVar = emitter.CurrentMethod.Scope.Introduce("string[]", emitter.ResolveType("string[]"));
              var keyVar = emitter.CurrentMethod.Scope.Introduce("string", emitter.ResolveType("string"), Key.Data);
              var itemVar = emitter.CurrentMethod.Scope.Introduce("string", emitter.ResolveType("string"), Item.Data);

              // preface: dictVar = ...;
              Iterable.Compile(emitter);
              emitter.EmitSaveVariable(dictVar);
              emitter.EmitLoadVariable(dictVar);
              emitter.EmitCall(emitter.FindMethod("dict", "reset"));

              // dict.next == false ? exit
              emitter.PlaceLabel(BodyStart);
              emitter.EmitLoadVariable(dictVar);
              emitter.EmitCall(emitter.FindMethod("dict", "next"));
              emitter.EmitLoadBool(false);
              emitter.EmitCompareEqual();
              emitter.EmitBranchTrue(BodyEnd);

              // curr = dict.current
              emitter.EmitLoadVariable(dictVar);
              emitter.EmitCall(emitter.FindMethod("dict", "current"));
              emitter.EmitSaveVariable(currVar);

              // (key, value) = curr
              emitter.EmitLoadVariable(currVar);
              emitter.EmitLoadInt(0);
              emitter.EmitLoadIndex("string");
              emitter.EmitSaveVariable(keyVar);
              emitter.EmitLoadVariable(currVar);
              emitter.EmitLoadInt(1);
              emitter.EmitLoadIndex("string");
              emitter.EmitSaveVariable(itemVar);

              // body
              var preCurrLoop = emitter.CurrentLoop;
              emitter.CurrentLoop = this;
              Body.Compile(emitter);
              emitter.CurrentLoop = preCurrLoop;

              emitter.EmitBranch(BodyStart);

              emitter.PlaceLabel(BodyEnd);
              emitter.CurrentMethod.Scope.LeaveSubScope();
        }