Example #1
0
        /// <summary>
        /// Generates CIL for the expression.
        /// </summary>
        /// <param name="generator"> The generator to output the CIL to. </param>
        /// <param name="optimizationInfo"> Information about any optimizations that should be performed. </param>
        public override void GenerateCode(ILGenerator generator, OptimizationInfo optimizationInfo)
        {
            // If a return value is not expected, generate only the side-effects.

            /*if (optimizationInfo.SuppressReturnValue == true)
             * {
             *  this.GenerateSideEffects(generator, optimizationInfo);
             *  return;
             * }*/

            // Emit the condition.
            var condition = this.GetOperand(0);

            condition.GenerateCode(generator, optimizationInfo);

            // Convert the condition to a boolean.
            EmitConversion.ToBool(generator, condition.ResultType);

            // Branch if the condition is false.
            var startOfElse = generator.CreateLabel();

            generator.BranchIfFalse(startOfElse);

            // Calculate the result type.
            var outputType = this.ResultType;

            // Emit the second operand and convert it to the result type.
            var operand2 = this.GetOperand(1);

            operand2.GenerateCode(generator, optimizationInfo);
            EmitConversion.Convert(generator, operand2.ResultType, outputType, optimizationInfo);

            // Branch to the end.
            var end = generator.CreateLabel();

            generator.Branch(end);
            generator.DefineLabelPosition(startOfElse);

            // Emit the third operand and convert it to the result type.
            var operand3 = this.GetOperand(2);

            operand3.GenerateCode(generator, optimizationInfo);
            EmitConversion.Convert(generator, operand3.ResultType, outputType, optimizationInfo);

            // Define the end label.
            generator.DefineLabelPosition(end);
        }
Example #2
0
 public static ILGenerator BranchIfFalse(this ILGenerator generator, string labelName)
 => generator.BranchIfFalse(generator.GetOrCreateLabel(labelName));