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[ffigen] Vibe coded prototype of transformer API #3482

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1b014b7
[ffigen] Vibe coded prototype of transformer API
liamappelbe Jul 20, 2026
7044019
fix tests and migrate existing Dart API ffigen configs
liamappelbe Jul 20, 2026
39c2a1b
nits
liamappelbe Jul 20, 2026
bd69dfe
fix tests
liamappelbe Jul 21, 2026
66b3ab2
Delete old API, and migrate a bunch more configs
liamappelbe Jul 23, 2026
68bba3a
visitChildren
liamappelbe Jul 29, 2026
dbba048
callback based visitor
liamappelbe Jul 29, 2026
dcd9218
shard the IncludeSetVisitor
liamappelbe Jul 29, 2026
4e08daf
flip isExcluded to isIncluded, and make visitor list non-null
liamappelbe Jul 29, 2026
36358a9
per-enum warning
liamappelbe Jul 29, 2026
cc8cb0b
remove include transitive flags
liamappelbe Jul 29, 2026
13f4370
missed some files
liamappelbe Jul 29, 2026
c2ed9c8
Move more bools to the AST
liamappelbe Jul 29, 2026
30fde52
cleaning
liamappelbe Jul 30, 2026
e1fb622
bug fixes
liamappelbe Jul 30, 2026
173954c
Headers -> Input
liamappelbe Jul 30, 2026
22839e7
Move varArgs
liamappelbe Jul 30, 2026
983d31f
more cleanup
liamappelbe Jul 30, 2026
cceba6d
Split out _VisitorImpl
liamappelbe Jul 30, 2026
1de61b7
migrate all configs
liamappelbe Jul 30, 2026
bd53b4f
Merge branch 'main' into ffigen_transformer
liamappelbe Jul 31, 2026
a532462
config docs
liamappelbe Aug 3, 2026
b86079b
typedefTypeMappings -> typedefImports
liamappelbe Aug 3, 2026
1b767f7
mac only test
liamappelbe Aug 3, 2026
b57df8c
fix large_test
liamappelbe Aug 3, 2026
2b5a5b3
cleaning up ObjC bindings
liamappelbe Aug 3, 2026
4f3aacc
fixes
liamappelbe Aug 3, 2026
e60f0c8
clean up
liamappelbe Aug 3, 2026
ac6d86f
clean up
liamappelbe Aug 3, 2026
3df1a17
clean up
liamappelbe Aug 3, 2026
a2006b2
cleaning
liamappelbe Aug 3, 2026
eaad4da
more cleanup
liamappelbe Aug 4, 2026
c4b1e14
clean up
liamappelbe Aug 4, 2026
98c09b9
fix enum recommendation behavior
liamappelbe Aug 4, 2026
c425c00
clean
liamappelbe Aug 4, 2026
eb0f393
clean up
liamappelbe Aug 4, 2026
aa9fb00
clean up
liamappelbe Aug 4, 2026
a68ad13
clean up
liamappelbe Aug 4, 2026
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13 changes: 8 additions & 5 deletions pkgs/code_assets/example/host_name/tool/ffigen.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -8,12 +8,13 @@ import 'package:ffigen/ffigen.dart';

void main() {
final packageRoot = Platform.script.resolve('../');
final functions = Functions.includeSet({'gethostname'});
final FfiGenerator generator;
if (Platform.isWindows) {
generator = FfiGenerator(
headers: Headers(entryPoints: [packageRoot.resolve('src/windows.h')]),
functions: functions,
input: Input(entryPoints: [packageRoot.resolve('src/windows.h')]),
visitors: const [
IncludeSetVisitor(functions: {'gethostname'}),
],
output: Output(
dartFile: packageRoot.resolve('lib/src/third_party/windows.dart'),
preamble: '''
Expand All @@ -26,8 +27,10 @@ void main() {
);
} else {
generator = FfiGenerator(
headers: Headers(entryPoints: [packageRoot.resolve('src/unix.h')]),
functions: functions,
input: Input(entryPoints: [packageRoot.resolve('src/unix.h')]),
visitors: const [
IncludeSetVisitor(functions: {'gethostname'}),
],
output: Output(
dartFile: packageRoot.resolve('lib/src/third_party/unix.dart'),
preamble: '''
Expand Down
32 changes: 14 additions & 18 deletions pkgs/code_assets/example/mini_audio/tool/ffigen.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -9,24 +9,20 @@ import 'package:ffigen/ffigen.dart';
void main() {
final packageRoot = Platform.script.resolve('../');
FfiGenerator(
headers: Headers(
entryPoints: [packageRoot.resolve('third_party/miniaudio.h')],
),
functions: Functions(
include: (decl) => {
'ma_engine_init',
'ma_engine_play_sound',
'ma_engine_uninit',
}.contains(decl.originalName),
recordUse: (_) => true,
),
structs: Structs(
include: (decl) => {'ma_engine'}.contains(decl.originalName),
),
enums: Enums(
include: (decl) => {'ma_result'}.contains(decl.originalName),
silenceWarning: true,
),
input: Input(entryPoints: [packageRoot.resolve('third_party/miniaudio.h')]),
visitors: const [
Comment thread
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IncludeSetVisitor(
functions: {
'ma_engine_init',
'ma_engine_play_sound',
'ma_engine_uninit',
},
structs: {'ma_engine'},
enums: {'ma_result'},
typedefs: {'ma_result'},
),
RecordUseVisitor(),
],
output: Output(
dartFile: packageRoot.resolve('lib/src/third_party/miniaudio.g.dart'),
recordUseMapping: packageRoot.resolve(
Expand Down
10 changes: 5 additions & 5 deletions pkgs/code_assets/example/sqlite/tool/ffigen.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -9,13 +9,13 @@ import 'package:ffigen/ffigen.dart';
void main() {
final packageRoot = Platform.script.resolve('../');
FfiGenerator(
headers: Headers(
input: Input(
entryPoints: [packageRoot.resolve('third_party/sqlite/sqlite3.h')],
),
functions: Functions(
include: (decl) => {'sqlite3_libversion'}.contains(decl.originalName),
recordUse: (_) => true,
),
visitors: const [
IncludeSetVisitor(functions: {'sqlite3_libversion'}),
RecordUseVisitor(),
],
output: Output(
dartFile: packageRoot.resolve('lib/src/third_party/sqlite3.g.dart'),
recordUseMapping: packageRoot.resolve(
Expand Down
7 changes: 5 additions & 2 deletions pkgs/code_assets/example/sqlite_no_link/tool/ffigen.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -9,10 +9,13 @@ import 'package:ffigen/ffigen.dart';
void main() {
final packageRoot = Platform.script.resolve('../');
FfiGenerator(
headers: Headers(
input: Input(
entryPoints: [packageRoot.resolve('third_party/sqlite/sqlite3.h')],
),
functions: Functions.includeSet({'sqlite3_libversion'}),
visitors: const [
IncludeSetVisitor(functions: {'sqlite3_libversion'}),
RecordUseVisitor(),
],
output: Output(
dartFile: packageRoot.resolve('lib/src/third_party/sqlite3.g.dart'),
preamble: '''
Expand Down
7 changes: 5 additions & 2 deletions pkgs/code_assets/example/sqlite_prebuilt/tool/ffigen.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -9,10 +9,13 @@ import 'package:ffigen/ffigen.dart';
void main() {
final packageRoot = Platform.script.resolve('../');
FfiGenerator(
headers: Headers(
input: Input(
entryPoints: [packageRoot.resolve('third_party/sqlite/sqlite3.h')],
),
functions: Functions.includeSet({'sqlite3_libversion'}),
visitors: const [
IncludeSetVisitor(functions: {'sqlite3_libversion'}),
RecordUseVisitor(),
],
output: Output(
dartFile: packageRoot.resolve('lib/src/third_party/sqlite3.g.dart'),
preamble: '''
Expand Down
12 changes: 5 additions & 7 deletions pkgs/code_assets/example/stb_image/tool/ffigen.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -9,13 +9,11 @@ import 'package:ffigen/ffigen.dart';
void main() {
final packageRoot = Platform.script.resolve('../');
FfiGenerator(
headers: Headers(
entryPoints: [packageRoot.resolve('third_party/stb_image.h')],
),
functions: Functions(
include: (decl) => {'stbi_info'}.contains(decl.originalName),
recordUse: (_) => true,
),
input: Input(entryPoints: [packageRoot.resolve('third_party/stb_image.h')]),
visitors: const [
IncludeSetVisitor(functions: {'stbi_info'}),
RecordUseVisitor(),
],
output: Output(
dartFile: packageRoot.resolve('lib/src/third_party/stb_image.g.dart'),
recordUseMapping: packageRoot.resolve(
Expand Down
6 changes: 3 additions & 3 deletions pkgs/ffigen/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -64,9 +64,9 @@ app has been created via `dart create ffigen_example`.
// Required. Output path for the generated bindings.
output: Output(dartFile: packageRoot.resolve('lib/add.g.dart')),
// Optional. Where to look for header files.
headers: Headers(entryPoints: [packageRoot.resolve('src/add.h')]),
// Optional. What functions to generate bindings for.
functions: Functions.includeSet({'add'}),
input: Input(entryPoints: [packageRoot.resolve('src/add.h')]),
// Optional. Visitors to filter and customize generated bindings.
visitors: [const IncludeSetVisitor(functions: {'add'})],
).generate();
}
```
Expand Down
6 changes: 4 additions & 2 deletions pkgs/ffigen/example/add/tool/ffigen.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -8,8 +8,10 @@ import 'package:ffigen/ffigen.dart';
FfiGenerator getConfig(Uri packageRoot) {
return FfiGenerator(
output: Output(dartFile: packageRoot.resolve('lib/add.g.dart')),
headers: Headers(entryPoints: [packageRoot.resolve('src/add.h')]),
functions: Functions.includeSet({'add'}),
input: Input(entryPoints: [packageRoot.resolve('src/add.h')]),
visitors: [
const IncludeSetVisitor(functions: {'add'}),
],
);
}

Expand Down
1 change: 0 additions & 1 deletion pkgs/ffigen/example/ffinative/lib/generated_bindings.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,6 @@ external ffi.Pointer<ffi.Float> divide(int a, int b);
@ffi.Native<ffi.Pointer<ffi.Double> Function(ffi.Float, ffi.Float)>()
external ffi.Pointer<ffi.Double> dividePrecision(double a, double b);

/// Version of the native C library
@ffi.Native<ffi.Pointer<ffi.Char>>()
external final ffi.Pointer<ffi.Char> library_version;

Expand Down
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