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C# Emitter.EmitCompareLess方法代码示例

本文整理汇总了C#中Emitter.EmitCompareLess方法的典型用法代码示例。如果您正苦于以下问题:C# Emitter.EmitCompareLess方法的具体用法?C# Emitter.EmitCompareLess怎么用?C# Emitter.EmitCompareLess使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Emitter的用法示例。


在下文中一共展示了Emitter.EmitCompareLess方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: Compile

        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++;
              }
        }
开发者ID:menozz,项目名称:mirelle,代码行数:63,代码来源:VarSplatNode.cs

示例2: CompileRelation

        /// <summary>
        /// Compare two values for their relative order: less and greater
        /// </summary>
        /// <param name="emitter">Emitter link</param>
        /// <param name="leftType">Left-hand argument type</param>
        /// <param name="rightType">Left-hand argument type</param>
        private void CompileRelation(Emitter.Emitter emitter, string leftType, string rightType)
        {
            if(leftType == "string")
              {
            var method = emitter.AssemblyImport(typeof(string).GetMethod("Compare", new[] { typeof(string), typeof(string) }));
            emitter.EmitCall(method);
            emitter.EmitLoadBool(false);
              }

              switch (ComparisonType)
              {
            case LexemType.Less: emitter.EmitCompareLess(); break;

            case LexemType.LessEqual: emitter.EmitCompareGreater();
              emitter.EmitLoadBool(false);
              emitter.EmitCompareEqual(); break;

            case LexemType.Greater: emitter.EmitCompareGreater(); break;

            case LexemType.GreaterEqual: emitter.EmitCompareLess();
              emitter.EmitLoadBool(false);
              emitter.EmitCompareEqual(); break;
              }
        }
开发者ID:menozz,项目名称:mirelle,代码行数:30,代码来源:OperatorCompareNode.cs

示例3: CompileArray

        /// <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();
        }
开发者ID:menozz,项目名称:mirelle,代码行数:53,代码来源:ForNode.cs


注:本文中的Emitter.EmitCompareLess方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。