fix: improve enum mapping runtime exception

src/Riok.Mapperly/Descriptors/Mappings/EnumNameMapping.cs

@@ -25,10 +25,10 @@ public EnumNameMapping(
 
     public override IEnumerable<StatementSyntax> BuildBody(TypeMappingBuildContext ctx)
     {
-        // fallback switch arm: _ => throw new ArgumentOutOfRangeException("source");
+        // fallback switch arm: _ => throw new ArgumentOutOfRangeException(nameof(source), source, message);
         var fallbackArm = SwitchExpressionArm(
             DiscardPattern(),
-            ThrowArgumentOutOfRangeException(ctx.Source));
+            ThrowArgumentOutOfRangeException(ctx.Source, $"The value of enum {SourceType.Name} is not supported"));
 
         // switch for each name to the enum value
         // eg: Enum1.Value1 => Enum2.Value1,

src/Riok.Mapperly/Emit/SyntaxFactoryHelper.cs

@@ -114,10 +114,10 @@ public static ThrowExpressionSyntax ThrowNullReferenceException(string message)
             .WithArgumentList(ArgumentList(StringLiteral(message))));
     }
 
-    public static ThrowExpressionSyntax ThrowArgumentOutOfRangeException(ExpressionSyntax arg)
+    public static ThrowExpressionSyntax ThrowArgumentOutOfRangeException(ExpressionSyntax arg, string message)
     {
         return ThrowExpression(ObjectCreationExpression(IdentifierName(ArgumentOutOfRangeExceptionClassName))
-            .WithArgumentList(ArgumentList(NameOf(arg))));
+            .WithArgumentList(ArgumentList(NameOf(arg), arg, StringLiteral(message))));
     }
 
     public static ThrowExpressionSyntax ThrowArgumentNullException(ExpressionSyntax arg)

test/Riok.Mapperly.IntegrationTests/_snapshots/MapperTest.SnapshotGeneratedSource.verified.cs

@@ -153,7 +153,7 @@ public partial Riok.Mapperly.IntegrationTests.Dto.TestEnumDtoByName MapToEnumDto
                 Riok.Mapperly.IntegrationTests.Models.TestEnum.Value10 => Riok.Mapperly.IntegrationTests.Dto.TestEnumDtoByName.Value10,
                 Riok.Mapperly.IntegrationTests.Models.TestEnum.Value20 => Riok.Mapperly.IntegrationTests.Dto.TestEnumDtoByName.Value20,
                 Riok.Mapperly.IntegrationTests.Models.TestEnum.Value30 => Riok.Mapperly.IntegrationTests.Dto.TestEnumDtoByName.Value30,
-                _ => throw new System.ArgumentOutOfRangeException(nameof(v)),
+                _ => throw new System.ArgumentOutOfRangeException(nameof(v), v, "The value of enum TestEnum is not supported"),
             };
         }
 

test/Riok.Mapperly.IntegrationTests/_snapshots/StaticMapperTest.SnapshotGeneratedSource.verified.cs

@@ -206,7 +206,7 @@ public static partial Riok.Mapperly.IntegrationTests.Dto.TestEnumDtoByName MapTo
                 Riok.Mapperly.IntegrationTests.Models.TestEnum.Value10 => Riok.Mapperly.IntegrationTests.Dto.TestEnumDtoByName.Value10,
                 Riok.Mapperly.IntegrationTests.Models.TestEnum.Value20 => Riok.Mapperly.IntegrationTests.Dto.TestEnumDtoByName.Value20,
                 Riok.Mapperly.IntegrationTests.Models.TestEnum.Value30 => Riok.Mapperly.IntegrationTests.Dto.TestEnumDtoByName.Value30,
-                _ => throw new System.ArgumentOutOfRangeException(nameof(v)),
+                _ => throw new System.ArgumentOutOfRangeException(nameof(v), v, "The value of enum TestEnum is not supported"),
             };
         }
 

test/Riok.Mapperly.Tests/Mapping/EnumTest.cs

@@ -87,7 +87,7 @@ public void EnumToOtherEnumByNameShouldSwitch()
         E1.B => E2.B,
         E1.C => E2.C,
         E1.E => E2.E,
-        _ => throw new System.ArgumentOutOfRangeException(nameof(source)),
+        _ => throw new System.ArgumentOutOfRangeException(nameof(source), source, ""The value of enum E1 is not supported""),
     };");
     }
 
@@ -110,7 +110,7 @@ public void EnumToOtherEnumByNameIgnoreCaseShouldSwitch()
         E1.E => E2.E,
         E1.f => E2.f,
         E1.F => E2.f,
-        _ => throw new System.ArgumentOutOfRangeException(nameof(source)),
+        _ => throw new System.ArgumentOutOfRangeException(nameof(source), source, ""The value of enum E1 is not supported""),
     };");
     }
 
@@ -151,7 +151,7 @@ enum E2 {A = 100, B, C}
         E1.A => E2.A,
         E1.B => E2.B,
         E1.C => E2.C,
-        _ => throw new System.ArgumentOutOfRangeException(nameof(source)),
+        _ => throw new System.ArgumentOutOfRangeException(nameof(source), source, ""The value of enum E1 is not supported""),
     };");
     }
 

test/Riok.Mapperly.Tests/_snapshots/EnumTest.EnumToOtherEnumByNameWithoutOverlap#Mapper.g.verified.cs

@@ -6,7 +6,7 @@ private partial E2 ToE1(E1 source)
     {
         return source switch
         {
-            _ => throw new System.ArgumentOutOfRangeException(nameof(source)),
+            _ => throw new System.ArgumentOutOfRangeException(nameof(source), source, "The value of enum E1 is not supported"),
         };
     }
 }