src/Tizen.NUI.XamlBuild/src/public/XamlBuild/CompiledConverters/ConstraintTypeConverter.cs

   1 using System.Collections.Generic;
   2 using System.Data;
   3 using System.Globalization;
   4
   5 using Mono.Cecil.Cil;
   6
   7 using Tizen.NUI.Xaml;
   8 using Tizen.NUI.Xaml.Build.Tasks;
   9
  10 using static Mono.Cecil.Cil.Instruction;
  11 using static Mono.Cecil.Cil.OpCodes;
  12
  13 namespace Tizen.NUI.Xaml.Core.XamlC
  14 {
  15     class ConstraintTypeConverter : ICompiledTypeConverter
  16     {
  17         public IEnumerable<Instruction> ConvertFromString(string value, ILContext context, BaseNode node)
  18         {
  19             var module = context.Body.Method.Module;
  20
  21             double size;
  22
  23             if (string.IsNullOrEmpty(value) || !double.TryParse(value, NumberStyles.Number, CultureInfo.InvariantCulture, out size))
  24                 throw new XamlParseException($"Cannot convert \"{value}\" into {typeof(Constraint)}", node);
  25
  26             yield return Create(Ldc_R8, size);
  27             yield return Create(Call, module.ImportMethodReference((XamlTask.nuiAssemblyName, XamlTask.nuiNameSpace, "Constraint"),
  28                                                                    methodName: "Constant",
  29                                                                    parameterTypes: new[] { ("mscorlib", "System", "Double") },
  30                                                                    isStatic: true));
  31         }
  32     }
  33 }