[ffigen] Add setters for dart-style enum members for structs

pkgs/ffigen/CHANGELOG.md

@@ -9,6 +9,7 @@
 - __Breaking change__: Certain synthetic USRs have been modified to ensure they
   cannot collide with real USRs. It's very unlikely that any user facing USRs
   are affected.
+- Enum struct members now have setters.
 
 ## 20.1.1
 

pkgs/ffigen/example/libclang-example/generated_bindings.dart

@@ -7535,6 +7535,7 @@ final class CXTUResourceUsageEntry extends ffi.Struct {
   external int kindAsInt;
 
   CXTUResourceUsageKind get kind => CXTUResourceUsageKind.fromValue(kindAsInt);
+  set kind(CXTUResourceUsageKind value) => kindAsInt = value.value;
 
   @ffi.UnsignedLong()
   external int amount;
@@ -8667,6 +8668,7 @@ final class CXCursor extends ffi.Struct {
   external int kindAsInt;
 
   CXCursorKind get kind => CXCursorKind.fromValue(kindAsInt);
+  set kind(CXCursorKind value) => kindAsInt = value.value;
 
   @ffi.Int()
   external int xdata;
@@ -9259,6 +9261,7 @@ final class CXType extends ffi.Struct {
   external int kindAsInt;
 
   CXTypeKind get kind => CXTypeKind.fromValue(kindAsInt);
+  set kind(CXTypeKind value) => kindAsInt = value.value;
 
   @ffi.Array.multi([2])
   external ffi.Array<ffi.Pointer<ffi.Void>> data;
@@ -10109,6 +10112,7 @@ final class CXCompletionResult extends ffi.Struct {
   external int CursorKindAsInt;
 
   CXCursorKind get CursorKind => CXCursorKind.fromValue(CursorKindAsInt);
+  set CursorKind(CXCursorKind value) => CursorKindAsInt = value.value;
 
   /// The code-completion string that describes how to insert this
   /// code-completion result into the editing buffer.
@@ -10867,6 +10871,7 @@ final class CXIdxAttrInfo extends ffi.Struct {
   external int kindAsInt;
 
   CXIdxAttrKind get kind => CXIdxAttrKind.fromValue(kindAsInt);
+  set kind(CXIdxAttrKind value) => kindAsInt = value.value;
 
   external CXCursor cursor;
 
@@ -10878,17 +10883,21 @@ final class CXIdxEntityInfo extends ffi.Struct {
   external int kindAsInt;
 
   CXIdxEntityKind get kind => CXIdxEntityKind.fromValue(kindAsInt);
+  set kind(CXIdxEntityKind value) => kindAsInt = value.value;
 
   @ffi.UnsignedInt()
   external int templateKindAsInt;
 
   CXIdxEntityCXXTemplateKind get templateKind =>
       CXIdxEntityCXXTemplateKind.fromValue(templateKindAsInt);
+  set templateKind(CXIdxEntityCXXTemplateKind value) =>
+      templateKindAsInt = value.value;
 
   @ffi.UnsignedInt()
   external int langAsInt;
 
   CXIdxEntityLanguage get lang => CXIdxEntityLanguage.fromValue(langAsInt);
+  set lang(CXIdxEntityLanguage value) => langAsInt = value.value;
 
   external ffi.Pointer<ffi.Char> name;
 
@@ -10980,6 +10989,7 @@ final class CXIdxObjCContainerDeclInfo extends ffi.Struct {
 
   CXIdxObjCContainerKind get kind =>
       CXIdxObjCContainerKind.fromValue(kindAsInt);
+  set kind(CXIdxObjCContainerKind value) => kindAsInt = value.value;
 }
 
 final class CXIdxBaseClassInfo extends ffi.Struct {
@@ -11104,6 +11114,7 @@ final class CXIdxEntityRefInfo extends ffi.Struct {
   external int kindAsInt;
 
   CXIdxEntityRefKind get kind => CXIdxEntityRefKind.fromValue(kindAsInt);
+  set kind(CXIdxEntityRefKind value) => kindAsInt = value.value;
 
   /// Reference cursor.
   external CXCursor cursor;
@@ -11132,6 +11143,7 @@ final class CXIdxEntityRefInfo extends ffi.Struct {
   external int roleAsInt;
 
   CXSymbolRole get role => CXSymbolRole.fromValue(roleAsInt);
+  set role(CXSymbolRole value) => roleAsInt = value.value;
 }
 
 /// A group of callbacks used by #clang_indexSourceFile and

pkgs/ffigen/lib/src/code_generator/compound.dart

@@ -110,7 +110,11 @@ abstract class Compound extends BindingType with HasLocalScope {
         final memberName = m.name;
         s.write(
           '$enumName get $memberName => '
-          '$enumName.fromValue(${memberName}AsInt);\n\n',
+          '$enumName.fromValue(${memberName}AsInt);\n',
+        );
+        s.write(
+          'set $memberName($enumName value) => '
+          '${memberName}AsInt = value.value;\n\n',
         );
       }
     }

pkgs/ffigen/test/code_generator_tests/expected_bindings/_expected_enumclass_func_and_struct_bindings.dart

@@ -87,6 +87,7 @@ final class StructWithEnums extends ffi.Struct {
   external int enum1AsInt;
 
   Enum1 get enum1 => Enum1.fromValue(enum1AsInt);
+  set enum1(Enum1 value) => enum1AsInt = value.value;
 
   @ffi.Int()
   external int enum2;

pkgs/ffigen/test/header_parser_tests/expected_bindings/_expected_enum_int_mimic_bindings.dart

@@ -77,6 +77,7 @@ final class Test extends ffi.Struct {
   external int simpleAsInt;
 
   Simple get simple => Simple.fromValue(simpleAsInt);
+  set simple(Simple value) => simpleAsInt = value.value;
 
   external ffi.Pointer<ffi.Int> simpleWithNegative;
 
@@ -97,12 +98,16 @@ final class Test extends ffi.Struct {
 
   PositiveIntOverflow get positiveIntOverflow =>
       PositiveIntOverflow.fromValue(positiveIntOverflowAsInt);
+  set positiveIntOverflow(PositiveIntOverflow value) =>
+      positiveIntOverflowAsInt = value.value;
 
   @ffi.Uint16()
   external int explicitTypeWithOverflowAsInt;
 
   ExplicitTypeWithOverflow get explicitTypeWithOverflow =>
       ExplicitTypeWithOverflow.fromValue(explicitTypeWithOverflowAsInt);
+  set explicitTypeWithOverflow(ExplicitTypeWithOverflow value) =>
+      explicitTypeWithOverflowAsInt = value.value;
 }
 
 const int ANONYMOUS1 = 0;

pkgs/ffigen/test/large_integration_tests/_expected_libclang_bindings.dart

@@ -6076,6 +6076,7 @@ final class CXTUResourceUsageEntry extends ffi.Struct {
   external int kindAsInt;
 
   CXTUResourceUsageKind get kind => CXTUResourceUsageKind.fromValue(kindAsInt);
+  set kind(CXTUResourceUsageKind value) => kindAsInt = value.value;
 
   @ffi.UnsignedLong()
   external int amount;
@@ -7040,6 +7041,7 @@ final class CXCursor extends ffi.Struct {
   external int kindAsInt;
 
   CXCursorKind get kind => CXCursorKind.fromValue(kindAsInt);
+  set kind(CXCursorKind value) => kindAsInt = value.value;
 
   @ffi.Int()
   external int xdata;
@@ -7500,6 +7502,7 @@ final class CXType extends ffi.Struct {
   external int kindAsInt;
 
   CXTypeKind get kind => CXTypeKind.fromValue(kindAsInt);
+  set kind(CXTypeKind value) => kindAsInt = value.value;
 
   @ffi.Array.multi([2])
   external ffi.Array<ffi.Pointer<ffi.Void>> data;
@@ -7932,6 +7935,7 @@ final class CXCompletionResult extends ffi.Struct {
   external int CursorKindAsInt;
 
   CXCursorKind get CursorKind => CXCursorKind.fromValue(CursorKindAsInt);
+  set CursorKind(CXCursorKind value) => CursorKindAsInt = value.value;
 
   /// The code-completion string that describes how to insert this
   /// code-completion result into the editing buffer.
@@ -8500,6 +8504,7 @@ final class CXIdxAttrInfo extends ffi.Struct {
   external int kindAsInt;
 
   CXIdxAttrKind get kind => CXIdxAttrKind.fromValue(kindAsInt);
+  set kind(CXIdxAttrKind value) => kindAsInt = value.value;
 
   external CXCursor cursor;
 
@@ -8511,17 +8516,21 @@ final class CXIdxEntityInfo extends ffi.Struct {
   external int kindAsInt;
 
   CXIdxEntityKind get kind => CXIdxEntityKind.fromValue(kindAsInt);
+  set kind(CXIdxEntityKind value) => kindAsInt = value.value;
 
   @ffi.UnsignedInt()
   external int templateKindAsInt;
 
   CXIdxEntityCXXTemplateKind get templateKind =>
       CXIdxEntityCXXTemplateKind.fromValue(templateKindAsInt);
+  set templateKind(CXIdxEntityCXXTemplateKind value) =>
+      templateKindAsInt = value.value;
 
   @ffi.UnsignedInt()
   external int langAsInt;
 
   CXIdxEntityLanguage get lang => CXIdxEntityLanguage.fromValue(langAsInt);
+  set lang(CXIdxEntityLanguage value) => langAsInt = value.value;
 
   external ffi.Pointer<ffi.Char> name;
 
@@ -8625,6 +8634,7 @@ final class CXIdxObjCContainerDeclInfo extends ffi.Struct {
 
   CXIdxObjCContainerKind get kind =>
       CXIdxObjCContainerKind.fromValue(kindAsInt);
+  set kind(CXIdxObjCContainerKind value) => kindAsInt = value.value;
 }
 
 final class CXIdxBaseClassInfo extends ffi.Struct {
@@ -8743,6 +8753,7 @@ final class CXIdxEntityRefInfo extends ffi.Struct {
   external int kindAsInt;
 
   CXIdxEntityRefKind get kind => CXIdxEntityRefKind.fromValue(kindAsInt);
+  set kind(CXIdxEntityRefKind value) => kindAsInt = value.value;
 
   /// Reference cursor.
   external CXCursor cursor;
@@ -8763,6 +8774,7 @@ final class CXIdxEntityRefInfo extends ffi.Struct {
   external int roleAsInt;
 
   CXSymbolRole get role => CXSymbolRole.fromValue(roleAsInt);
+  set role(CXSymbolRole value) => roleAsInt = value.value;
 }
 
 /// A group of callbacks used by #clang_indexSourceFile and