Dart code generated for serializing HashSet<u64> fails to compile

[domph]

Describe the bug

It seems like serializing HashSet<u64> yields incorrect Dart code. This is with or without the --full-dep flag.

Steps to reproduce

In a brand new Flutter project (or inside the dart_minimal project), add the following:

use std::collections::HashSet;

#[flutter_rust_bridge::frb(sync)]
pub fn test(vals: HashSet<u64>) -> String {
    format!("{:?}", vals)
}

The frb_generated.dart file generates the following error:

lib/src/rust/frb_generated.dart:244:34: Error: The argument type 'List<BigInt>' can't be assigned to the parameter type 'List<int>'.
 - 'List' is from 'dart:core'.
 - 'BigInt' is from 'dart:core'.
        Uint64List.fromList(self.toList()), serializer);

It refers to this part of the frb_generated.dart file:

  @protected
  void sse_encode_Set_u_64(Set<BigInt> self, SseSerializer serializer) {
    // Codec=Sse (Serialization based), see doc to use other codecs
    sse_encode_list_prim_u_64_strict(
        Uint64List.fromList(self.toList()), serializer);
  }

Logs

RUST_LOG=debug flutter_rust_bridge_codegen generate

[2025-01-22T21:05:56.327Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src/main.rs:25] cli=Cli { verbose: false, command: Generate(GenerateCommandArgs { watch: false, primary: GenerateCommandArgsPrimary { config_file: None, rust_input: None, dart_output: None, c_output: None, duplicated_c_output: None, rust_root: None, rust_output: None, dart_entrypoint_class_name: None, dart_format_line_length: None, dart_preamble: None, rust_preamble: None, no_dart_enums_style: false, no_add_mod_to_lib: false, llvm_path: None, llvm_compiler_opts: None, dart_root: None, no_build_runner: false, extra_headers: None, no_web: false, no_deps_check: false, default_external_library_loader_web_prefix: None, no_dart3: false, full_dep: false, local: false, enable_lifetime: false, type_64bit_int: false, no_default_dart_async: false, stop_on_error: false, dump: None, dump_all: false, rust_features: None } }) }
[2025-01-22T21:05:56.328Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\codegen\config\config_parser.rs:51] Found config file flutter_rust_bridge.yaml
[2025-01-22T21:05:56.328Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\codegen\mod.rs:23] config=Config { base_dir: Some(""), rust_input: Some("crate::api"), dart_output: Some("lib/src/rust"), c_output: None, duplicated_c_output: None, rust_root: Some("rust/"), rust_output: None, dart_entrypoint_class_name: None, dart_format_line_length: None, dart_preamble: None, rust_preamble: None, dart_enums_style: None, add_mod_to_lib: None, llvm_path: None, llvm_compiler_opts: None, dart_root: None, build_runner: None, extra_headers: None, web: None, deps_check: None, dart3: None, full_dep: Some(true), local: None, default_external_library_loader_web_prefix: None, dart_type_rename: None, enable_lifetime: None, type_64bit_int: None, default_dart_async: None, stop_on_error: None, dump: None, dump_all: None, rust_features: None } meta_config=MetaConfig { watch: false }
[2025-01-22T21:05:56.328Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\codegen\config\internal_config_parser\mod.rs:33] InternalConfig.parse base_dir="C:\\dev\\frb_int"
[2025-01-22T21:05:56.580Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\codegen\mod.rs:26] internal_config=InternalConfig { controller: ControllerInternalConfig { watch: false, watching_paths: ["\\\\?\\C:\\dev\\frb_int\\rust\\src"], exclude_paths: ["\\\\?\\C:\\dev\\frb_int\\rust\\src\\frb_generated.rs"], max_count: None }, preparer: PreparerInternalConfig { dart_root: "\\\\?\\C:\\dev\\frb_int", deps_check: true, needs_ffigen: true }, parser: ParserInternalConfig { hir: ParserHirInternalConfig { rust_input_namespace_pack: RustInputNamespacePack { rust_input_namespace_prefixes: [Namespace { joined_path: "crate::api" }], rust_output_path_namespace: Namespace { joined_path: "crate::frb_generated" } }, rust_crate_dir: "\\\\?\\C:\\dev\\frb_int\\rust", third_party_crate_names: [], rust_features: None }, mir: ParserMirInternalConfig { rust_input_namespace_pack: RustInputNamespacePack { rust_input_namespace_prefixes: [Namespace { joined_path: "crate::api" }], rust_output_path_namespace: Namespace { joined_path: "crate::frb_generated" } }, force_codec_mode_pack: None, default_stream_sink_codec: Dco, default_rust_opaque_codec: Nom, stop_on_error: false, enable_lifetime: false, type_64bit_int: false, default_dart_async: true } }, generator: GeneratorInternalConfig { api_dart: GeneratorApiDartInternalConfig { dart_enums_style: true, dart3: true, dart_decl_base_output_path: "\\\\?\\C:\\dev\\frb_int\\lib\\src\\rust", dart_impl_output_path: TargetOrCommonMap { common: "\\\\?\\C:\\dev\\frb_int\\lib\\src\\rust\\frb_generated.dart", io: "\\\\?\\C:\\dev\\frb_int\\lib\\src\\rust\\frb_generated.io.dart", web: "\\\\?\\C:\\dev\\frb_int\\lib\\src\\rust\\frb_generated.web.dart" }, dart_entrypoint_class_name: "RustLib", dart_preamble: "", dart_type_rename: {} }, wire: GeneratorWireInternalConfig { dart: GeneratorWireDartInternalConfig { has_ffigen: true, web_enabled: true, llvm_path: ["/opt/homebrew/opt/llvm", "/usr/local/opt/llvm", "/usr/lib/llvm-9", "/usr/lib/llvm-10", "/usr/lib/llvm-11", "/usr/lib/llvm-12", "/usr/lib/llvm-13", "/usr/lib/llvm-14", "/usr/lib/", "/usr/lib64/", "C:/Program Files/llvm", "C:/msys64/mingw64"], llvm_compiler_opts: "", dart_root: "\\\\?\\C:\\dev\\frb_int", extra_headers: "", dart_impl_output_path: TargetOrCommonMap { common: "\\\\?\\C:\\dev\\frb_int\\lib\\src\\rust\\frb_generated.dart", io: "\\\\?\\C:\\dev\\frb_int\\lib\\src\\rust\\frb_generated.io.dart", web: "\\\\?\\C:\\dev\\frb_int\\lib\\src\\rust\\frb_generated.web.dart" }, dart_output_class_name_pack: DartOutputClassNamePack { entrypoint_class_name: "RustLib", api_class_name: "RustLibApi", api_impl_class_name: "RustLibApiImpl", api_impl_platform_class_name: "RustLibApiImplPlatform", wire_class_name: "RustLibWire", wasm_module_name: "RustLibWasmModule" }, default_external_library_loader: GeneratorWireDartDefaultExternalLibraryLoaderInternalConfig { stem: "rust_lib_frb_int", io_directory: "rust/target/release/", web_prefix: "pkg/" }, c_symbol_prefix: "frbgen_frb_int_" }, rust: GeneratorWireRustInternalConfig { rust_crate_dir: "\\\\?\\C:\\dev\\frb_int\\rust", web_enabled: true, rust_output_path: "\\\\?\\C:\\dev\\frb_int\\rust\\src\\frb_generated.rs", c_symbol_prefix: "frbgen_frb_int_", has_ffigen: true, default_stream_sink_codec: Dco, default_rust_opaque_codec: Nom, rust_preamble: "" }, c: GeneratorWireCInternalConfig { enable: true, rust_crate_dir: "\\\\?\\C:\\dev\\frb_int\\rust", rust_output_path: "\\\\?\\C:\\dev\\frb_int\\rust\\src\\frb_generated.rs", c_output_path: None, c_symbol_prefix: "frbgen_frb_int_" } } }, polisher: PolisherInternalConfig { duplicated_c_output_path: [], dart_format_line_length: 80, add_mod_to_lib: true, build_runner: true, web_enabled: true, dart_output: "\\\\?\\C:\\dev\\frb_int\\lib\\src\\rust", dart_root: "\\\\?\\C:\\dev\\frb_int", rust_crate_dir: "\\\\?\\C:\\dev\\frb_int\\rust", rust_output_path: "\\\\?\\C:\\dev\\frb_int\\rust\\src\\frb_generated.rs", c_output_path: None, enable_auto_upgrade: true }, dumper: DumperInternalConfig { dump_contents: [], dump_directory: "\\\\?\\C:\\dev\\frb_int\\rust\\target\\frb_dump" } }
[2025-01-22T21:05:56.581Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\utils\dart_repository\dart_repo.rs:21] Guessing toolchain the runner is run into
[2025-01-22T21:05:56.581Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\command_runner.rs:129] execute command: bin=powershell args="-noprofile -command & \"fvm\" \"--version\"" current_dir=None cmd="powershell" "-noprofile" "-command" "& \"fvm\" \"--version\""
[2025-01-22T21:05:57.154Z WARN C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\command_runner.rs:153] command="powershell" "-noprofile" "-command" "& \"fvm\" \"--version\"" stdout= stderr=& : The term 'fvm' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
At line:1 char:3
+ & "fvm" "--version"
+   ~~~~~
    + CategoryInfo          : ObjectNotFound: (fvm:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException
 

[2025-01-22T21:05:57.155Z INFO C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\fvm.rs:15] Has .fvmrc but no fvm binary installation, thus skip using fvm.
[2025-01-22T21:05:57.155Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\command_runner.rs:129] execute command: bin=powershell args="-noprofile -command & \"flutter\" \"--version\"" current_dir=None cmd="powershell" "-noprofile" "-command" "& \"flutter\" \"--version\""
[2025-01-22T21:05:58.527Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\command_runner.rs:140] command="powershell" "-noprofile" "-command" "& \"flutter\" \"--version\"" stdout=Flutter 3.27.0 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 8495dee1fd (6 weeks ago) • 2024-12-10 14:23:39 -0800
Engine • revision 83bacfc525
Tools • Dart 3.6.0 • DevTools 2.40.2
 stderr=
[2025-01-22T21:05:58.527Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\utils\dart_repository\dart_repo.rs:68] Checking presence of ffigen in dev_dependencies at "\\\\?\\C:\\dev\\frb_int"
[2025-01-22T21:05:58.528Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\utils\dart_repository\dart_repo.rs:93] Checking presence of ffigen in dev_dependencies at "\\\\?\\C:\\dev\\frb_int"
[2025-01-22T21:05:58.530Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\cargo_expand\mod.rs:27] run_cargo_expand manifest_dir= rust_crate_dir="\\\\?\\C:\\dev\\frb_int\\rust"
[2025-01-22T21:05:58.530Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\cargo_expand\real.rs:65] Running cargo expand in '"\\\\?\\C:\\dev\\frb_int\\rust"'
[2025-01-22T21:05:58.531Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\command_runner.rs:129] execute command: bin=cargo args="expand --lib --theme=none --ugly" current_dir=Some("\\\\?\\C:\\dev\\frb_int\\rust") cmd="cargo" "expand" "--lib" "--theme=none" "--ugly"
[2025-01-22T21:05:59.020Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\command_runner.rs:140] command="cargo" "expand" "--lib" "--theme=none" "--ugly" stdout=#![feature(prelude_import)]
#[prelude_import]
use std::prelude::rust_2021::*;
#[macro_use]
extern crate std;
pub mod api {
    pub mod simple {
        use std::collections::HashSet;
        #[doc = "frb_encoded(235b6672622873796e63295d)"]
        pub fn test(vals: HashSet<u64>) -> String {
            ::alloc::__export::must_use({
                    let res = ::alloc::fmt::format(format_args!("{0:?}", vals));
                    res
                })
        }
        #[doc = "frb_encoded(235b66726228696e6974295d)"]
        pub fn init_app() { flutter_rust_bridge::setup_default_user_utils(); }
    }
}
mod frb_generated {
    #![allow(non_camel_case_types, unused, non_snake_case,
    clippy::needless_return, clippy::redundant_closure_call,
    clippy::redundant_closure, clippy::useless_conversion, clippy::unit_arg,
    clippy::unused_unit, clippy::double_parens, clippy::let_and_return,
    clippy::too_many_arguments, clippy::match_single_binding,
    clippy::clone_on_copy, clippy::let_unit_value, clippy::deref_addrof,
    clippy::explicit_auto_deref, clippy::borrow_deref_ref,
    clippy::needless_borrow)]
    use flutter_rust_bridge::for_generated::byteorder::{
        NativeEndian, ReadBytesExt, WriteBytesExt,
    };
    use flutter_rust_bridge::for_generated::{
        transform_result_dco, Lifetimeable, Lockable,
    };
    use flutter_rust_bridge::{Handler, IntoIntoDart};
    #[doc(hidden)]
    pub(crate) struct FrbWrapper<T>(T);
    impl<T: Clone> Clone for FrbWrapper<T> {
        fn clone(&self) -> Self { FrbWrapper(self.0.clone()) }
    }
    impl<T: PartialEq> PartialEq for FrbWrapper<T> {
        fn eq(&self, other: &Self) -> bool { self.0.eq(&other.0) }
    }
    impl<T: Eq> Eq for FrbWrapper<T> {}
    impl<T: std::hash::Hash> std::hash::Hash for FrbWrapper<T> {
        fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
            self.0.hash(state)
        }
    }
    impl<T> From<T> for FrbWrapper<T> {
        fn from(t: T) -> Self { FrbWrapper(t) }
    }
    use std::collections::HashMap;
    use std::marker::PhantomData;
    use std::sync::Arc;
    pub struct MoiArc<T: ?Sized + MoiArcValue> {
        object_id: Option<ObjectId>,
        value: Option<Arc<T>>,
        _phantom: PhantomData<T>,
    }
    #[automatically_derived]
    impl<T: ::core::fmt::Debug + ?Sized + MoiArcValue> ::core::fmt::Debug for
        MoiArc<T> {
        #[inline]
        fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
            ::core::fmt::Formatter::debug_struct_field3_finish(f, "MoiArc",
                "object_id", &self.object_id, "value", &self.value,
                "_phantom", &&self._phantom)
        }
    }
    impl<T: ?Sized + MoiArcValue> Drop for MoiArc<T> {
        fn drop(&mut self) {
            if let Some(object_id) = self.object_id {
                    Self::decrement_strong_count(object_id);
                }
        }
    }
    impl<T: ?Sized + MoiArcValue> AsRef<T> for MoiArc<T> {
        fn as_ref(&self) -> &T { self.value.as_ref().unwrap().as_ref() }
    }
    impl<T: ?Sized + MoiArcValue>
        ::flutter_rust_bridge::for_generated::BaseArc<T> for MoiArc<T> {
        fn new(value: T) -> Self where T: Sized {
            let mut pool = T::get_pool().write().unwrap();
            let object_id = pool.id_generator.next_id();
            let value = Arc::new(value);
            let old_value =
                pool.map.insert(object_id,
                    MoiArcPoolValue { ref_count: 1, value: value.clone() });
            if !old_value.is_none() {
                    ::core::panicking::panic("assertion failed: old_value.is_none()")
                };
            Self {
                object_id: Some(object_id),
                value: Some(value),
                _phantom: PhantomData,
            }
        }
        fn try_unwrap(mut self) -> Result<T, Self> where T: Sized {
            let pool = &mut T::get_pool().write().unwrap();
            if pool.map.get(&self.object_id.unwrap()).unwrap().ref_count == 1
                    {
                    Self::decrement_strong_count_raw(self.object_id.unwrap(),
                        pool);
                    self.object_id.take().unwrap();
                    Ok(Arc::into_inner(self.value.take().unwrap()).unwrap())
                } else { Err(self) }
        }
        fn into_inner(self) -> Option<T> where T: Sized {
            self.try_unwrap().ok()
        }
        fn into_raw(mut self) -> usize { self.object_id.take().unwrap() }
    }
    impl<T: ?Sized + MoiArcValue> Clone for MoiArc<T> {
        fn clone(&self) -> Self {
            Self::increment_strong_count(self.object_id.unwrap());
            Self {
                object_id: self.object_id,
                value: self.value.clone(),
                _phantom: PhantomData,
            }
        }
    }
    impl<T: ?Sized + MoiArcValue> MoiArc<T> {
        pub(crate) fn from_raw(raw: usize) -> Self where T: Sized {
            let map = &T::get_pool().read().unwrap().map;
            Self {
                object_id: Some(raw),
                value: Some(map.get(&raw).unwrap().value.clone()),
                _phantom: PhantomData,
            }
        }
        pub fn increment_strong_count(raw: usize) {
            let map = &mut T::get_pool().write().unwrap().map;
            map.get_mut(&raw).unwrap().ref_count += 1;
        }
        pub fn decrement_strong_count(raw: usize) {
            let mut pool = T::get_pool().write().unwrap();
            let object = Self::decrement_strong_count_raw(raw, &mut pool);
            drop(pool);
            drop(object);
        }
        fn decrement_strong_count_raw(raw: usize,
            pool: &mut MoiArcPoolInner<T>) -> Option<MoiArcPoolValue<T>> {
            let value = pool.map.get_mut(&raw).unwrap();
            value.ref_count -= 1;
            if value.ref_count == 0 { pool.map.remove(&raw) } else { None }
        }
    }
    pub trait MoiArcValue: 'static {
        fn get_pool()
        -> &'static MoiArcPool<Self>;
    }
    type ObjectId = usize;
    pub type MoiArcPool<T> = std::sync::RwLock<MoiArcPoolInner<T>>;
    pub struct MoiArcPoolInner<T: ?Sized> {
        map: HashMap<ObjectId, MoiArcPoolValue<T>>,
        id_generator: IdGenerator,
    }
    impl<T: ?Sized> Default for MoiArcPoolInner<T> {
        fn default() -> Self {
            Self { map: HashMap::new(), id_generator: Default::default() }
        }
    }
    struct IdGenerator {
        next_id: ObjectId,
    }
    impl Default for IdGenerator {
        fn default() -> Self { Self { next_id: Self::MIN_ID } }
    }
    impl IdGenerator {
        const MIN_ID: ObjectId = 1;
        const MAX_ID: ObjectId = 2147483600;
        fn next_id(&mut self) -> ObjectId {
            let ans = self.next_id;
            self.next_id =
                if self.next_id >= Self::MAX_ID {
                        Self::MIN_ID
                    } else { self.next_id + 1 };
            ans
        }
    }
    impl<T: ?Sized> MoiArcPoolInner<T> {}
    struct MoiArcPoolValue<T: ?Sized> {
        ref_count: i32,
        value: Arc<T>,
    }
    use ::flutter_rust_bridge::for_generated::decode_rust_opaque_nom;
    fn decode_rust_opaque_moi<T: MoiArcValue + Send + Sync>(ptr: usize)
        -> RustOpaqueMoi<T> {
        RustOpaqueMoi::from_arc(MoiArc::<T>::from_raw(ptr))
    }
    use ::flutter_rust_bridge::for_generated::StdArc;
    use ::flutter_rust_bridge::RustOpaqueNom;
    /// Please refer to `RustOpaque` for doc.
    pub type RustOpaqueMoi<T> =
        ::flutter_rust_bridge::for_generated::RustOpaqueBase<T, MoiArc<T>>;
    /// A wrapper to support [arbitrary Rust types](https://cjycode.com/flutter_rust_bridge/guides/types/arbitrary).
    pub type RustOpaque<T> = RustOpaqueMoi<T>;
    use ::flutter_rust_bridge::RustAutoOpaqueNom;
    /// Please refer to `RustAutoOpaque` for doc.
    pub type RustAutoOpaqueMoi<T> =
        ::flutter_rust_bridge::for_generated::RustAutoOpaqueBase<T,
        MoiArc<::flutter_rust_bridge::for_generated::RustAutoOpaqueInner<T>>>;
    /// Usually this is unneeded, and just write down arbitrary types.
    /// However, when you need arbitrary types at places that are not supported yet,
    /// use `RustOpaqueOpaque<YourArbitraryType>`.
    pub type RustAutoOpaque<T> = RustAutoOpaqueMoi<T>;
    pub trait CstDecode<T> {
        fn cst_decode(self)
        -> T;
    }
    impl<T, S> CstDecode<Option<T>> for *mut S where *mut S: CstDecode<T> {
        fn cst_decode(self) -> Option<T> {
            (!self.is_null()).then(|| self.cst_decode())
        }
    }
    pub trait SseDecode {
        fn sse_decode(deserializer:
            &mut ::flutter_rust_bridge::for_generated::SseDeserializer)
        -> Self;
    }
    pub trait SseEncode {
        fn sse_encode(self,
        serializer: &mut ::flutter_rust_bridge::for_generated::SseSerializer);
    }
    fn transform_result_sse<T, E>(raw: Result<T, E>)
        ->
            Result<::flutter_rust_bridge::for_generated::Rust2DartMessageSse,
            ::flutter_rust_bridge::for_generated::Rust2DartMessageSse> where
        T: SseEncode, E: SseEncode {
        use ::flutter_rust_bridge::for_generated::{Rust2DartAction, SseCodec};
        match raw {
            Ok(raw) =>
                Ok(SseCodec::encode(Rust2DartAction::Success,
                        |serializer| { raw.sse_encode(serializer) })),
            Err(raw) =>
                Err(SseCodec::encode(Rust2DartAction::Error,
                        |serializer| { raw.sse_encode(serializer) })),
        }
    }
    pub struct StreamSink<T,
        Rust2DartCodec: ::flutter_rust_bridge::for_generated::BaseCodec =
        ::flutter_rust_bridge::for_generated::SseCodec> {
        base: ::flutter_rust_bridge::for_generated::StreamSinkBase<T,
        Rust2DartCodec>,
    }
    #[automatically_derived]
    impl<T: ::core::clone::Clone, Rust2DartCodec: ::core::clone::Clone +
        ::flutter_rust_bridge::for_generated::BaseCodec> ::core::clone::Clone
        for StreamSink<T, Rust2DartCodec> {
        #[inline]
        fn clone(&self) -> StreamSink<T, Rust2DartCodec> {
            StreamSink { base: ::core::clone::Clone::clone(&self.base) }
        }
    }
    impl<T, Rust2DartCodec: ::flutter_rust_bridge::for_generated::BaseCodec>
        StreamSink<T, Rust2DartCodec> {
        pub fn deserialize(raw: String) -> Self {
            Self {
                base: ::flutter_rust_bridge::for_generated::StreamSinkBase::deserialize(raw),
            }
        }
    }
    impl<T> StreamSink<T, ::flutter_rust_bridge::for_generated::DcoCodec> {
        pub fn add<T2>(&self, value: T)
            -> Result<(), ::flutter_rust_bridge::Rust2DartSendError> where
            T: ::flutter_rust_bridge::IntoIntoDart<T2>,
            T2: ::flutter_rust_bridge::IntoDart {
            self.add_raw(::flutter_rust_bridge::for_generated::Rust2DartAction::Success,
                value)
        }
        pub fn add_error<TR, T2>(&self, value: TR)
            -> Result<(), ::flutter_rust_bridge::Rust2DartSendError> where
            TR: ::flutter_rust_bridge::IntoIntoDart<T2>,
            T2: ::flutter_rust_bridge::IntoDart {
            self.add_raw(::flutter_rust_bridge::for_generated::Rust2DartAction::Error,
                value)
        }
        fn add_raw<TR,
            T2>(&self,
            action: ::flutter_rust_bridge::for_generated::Rust2DartAction,
            value: TR)
            -> Result<(), ::flutter_rust_bridge::Rust2DartSendError> where
            TR: ::flutter_rust_bridge::IntoIntoDart<T2>,
            T2: ::flutter_rust_bridge::IntoDart {
            self.base.add_raw(::flutter_rust_bridge::for_generated::DcoCodec::encode(action,
                    value.into_into_dart()))
        }
    }
    impl<T> StreamSink<T, ::flutter_rust_bridge::for_generated::SseCodec>
        where T: SseEncode {
        pub fn add(&self, value: T)
            -> Result<(), ::flutter_rust_bridge::Rust2DartSendError> {
            self.add_raw(::flutter_rust_bridge::for_generated::Rust2DartAction::Success,
                value)
        }
        pub fn add_error<TR: SseEncode>(&self, value: TR)
            -> Result<(), ::flutter_rust_bridge::Rust2DartSendError> {
            self.add_raw(::flutter_rust_bridge::for_generated::Rust2DartAction::Error,
                value)
        }
        pub fn add_raw<TR: SseEncode>(&self,
            action: ::flutter_rust_bridge::for_generated::Rust2DartAction,
            value: TR)
            -> Result<(), ::flutter_rust_bridge::Rust2DartSendError> {
            self.base.add_raw(::flutter_rust_bridge::for_generated::SseCodec::encode(action,
                    |serializer| value.sse_encode(serializer)))
        }
    }
    impl<T, Rust2DartCodec: ::flutter_rust_bridge::for_generated::BaseCodec>
        ::flutter_rust_bridge::IntoIntoDart<StreamSink<T, Rust2DartCodec>> for
        StreamSink<T, Rust2DartCodec> {
        fn into_into_dart(self) -> StreamSink<T, Rust2DartCodec> {
            ::core::panicking::panic("internal error: entered unreachable code")
        }
    }
    impl<T, Rust2DartCodec: ::flutter_rust_bridge::for_generated::BaseCodec>
        ::flutter_rust_bridge::IntoDart for StreamSink<T, Rust2DartCodec> {
        fn into_dart(self) -> ::flutter_rust_bridge::for_generated::DartAbi {
            ::core::panicking::panic("internal error: entered unreachable code")
        }
    }
    pub(crate) const FLUTTER_RUST_BRIDGE_CODEGEN_VERSION: &str = "2.7.0";
    pub(crate) const FLUTTER_RUST_BRIDGE_CODEGEN_CONTENT_HASH: i32 =
        -978319910;
    #[allow(missing_copy_implementations)]
    #[allow(non_camel_case_types)]
    #[allow(dead_code)]
    pub struct FLUTTER_RUST_BRIDGE_HANDLER {
        __private_field: (),
    }
    #[doc(hidden)]
    pub static FLUTTER_RUST_BRIDGE_HANDLER: FLUTTER_RUST_BRIDGE_HANDLER =
        FLUTTER_RUST_BRIDGE_HANDLER { __private_field: () };
    impl ::lazy_static::__Deref for FLUTTER_RUST_BRIDGE_HANDLER {
        type Target =
            ::flutter_rust_bridge::DefaultHandler<::flutter_rust_bridge::for_generated::SimpleThreadPool>;
        fn deref(&self)
            ->
                &::flutter_rust_bridge::DefaultHandler<::flutter_rust_bridge::for_generated::SimpleThreadPool> {
            #[inline(always)]
            fn __static_ref_initialize()
                ->
                    ::flutter_rust_bridge::DefaultHandler<::flutter_rust_bridge::for_generated::SimpleThreadPool> {
                {
                    match (&FLUTTER_RUST_BRIDGE_CODEGEN_VERSION,
                            &flutter_rust_bridge::for_generated::FLUTTER_RUST_BRIDGE_RUNTIME_VERSION)
                        {
                        (left_val, right_val) => {
                            if !(*left_val == *right_val) {
                                    let kind = ::core::panicking::AssertKind::Eq;
                                    ::core::panicking::assert_failed(kind, &*left_val,
                                        &*right_val,
                                        ::core::option::Option::Some(format_args!("Please ensure flutter_rust_bridge\'s codegen ({0}) and runtime ({1}) versions are the same",
                                                FLUTTER_RUST_BRIDGE_CODEGEN_VERSION,
                                                flutter_rust_bridge::for_generated::FLUTTER_RUST_BRIDGE_RUNTIME_VERSION)));
                                }
                        }
                    };
                    ::flutter_rust_bridge::DefaultHandler::new_simple(Default::default())
                }
            }
            #[inline(always)]
            fn __stability()
                ->
                    &'static ::flutter_rust_bridge::DefaultHandler<::flutter_rust_bridge::for_generated::SimpleThreadPool> {
                static LAZY:
                    ::lazy_static::lazy::Lazy<::flutter_rust_bridge::DefaultHandler<::flutter_rust_bridge::for_generated::SimpleThreadPool>>
                    =
                    ::lazy_static::lazy::Lazy::INIT;
                LAZY.get(__static_ref_initialize)
            }
            __stability()
        }
    }
    impl ::lazy_static::LazyStatic for FLUTTER_RUST_BRIDGE_HANDLER {
        fn initialize(lazy: &Self) { let _ = &**lazy; }
    }
    fn wire__crate__api__simple__init_app_impl(port_:
            flutter_rust_bridge::for_generated::MessagePort,
        ptr_:
            flutter_rust_bridge::for_generated::PlatformGeneralizedUint8ListPtr,
        rust_vec_len_: i32, data_len_: i32) {
        FLUTTER_RUST_BRIDGE_HANDLER.wrap_normal::<flutter_rust_bridge::for_generated::SseCodec,
            _,
            _>(flutter_rust_bridge::for_generated::TaskInfo {
                debug_name: "init_app",
                port: Some(port_),
                mode: flutter_rust_bridge::for_generated::FfiCallMode::Normal,
            },
            move ||
                {
                    let message =
                        unsafe {
                            flutter_rust_bridge::for_generated::Dart2RustMessageSse::from_wire(ptr_,
                                rust_vec_len_, data_len_)
                        };
                    let mut deserializer =
                        flutter_rust_bridge::for_generated::SseDeserializer::new(message);
                    deserializer.end();
                    move |context|
                        {
                            transform_result_sse::<_,
                                    ()>((move ||
                                            {
                                                let output_ok =
                                                    Result::<_, ()>::Ok({ crate::api::simple::init_app(); })?;
                                                Ok(output_ok)
                                            })())
                        }
                })
    }
    fn wire__crate__api__simple__test_impl(ptr_:
            flutter_rust_bridge::for_generated::PlatformGeneralizedUint8ListPtr,
        rust_vec_len_: i32, data_len_: i32)
        -> flutter_rust_bridge::for_generated::WireSyncRust2DartSse {
        FLUTTER_RUST_BRIDGE_HANDLER.wrap_sync::<flutter_rust_bridge::for_generated::SseCodec,
            _>(flutter_rust_bridge::for_generated::TaskInfo {
                debug_name: "test",
                port: None,
                mode: flutter_rust_bridge::for_generated::FfiCallMode::Sync,
            },
            move ||
                {
                    let message =
                        unsafe {
                            flutter_rust_bridge::for_generated::Dart2RustMessageSse::from_wire(ptr_,
                                rust_vec_len_, data_len_)
                        };
                    let mut deserializer =
                        flutter_rust_bridge::for_generated::SseDeserializer::new(message);
                    let api_vals =
                        <std::collections::HashSet<u64>>::sse_decode(&mut deserializer);
                    deserializer.end();
                    transform_result_sse::<_,
                            ()>((move ||
                                    {
                                        let output_ok =
                                            Result::<_, ()>::Ok(crate::api::simple::test(api_vals))?;
                                        Ok(output_ok)
                                    })())
                })
    }
    impl SseDecode for std::collections::HashSet<u64> {
        fn sse_decode(deserializer:
                &mut flutter_rust_bridge::for_generated::SseDeserializer)
            -> Self {
            let mut inner = <Vec<u64>>::sse_decode(deserializer);
            return inner.into_iter().collect();
        }
    }
    impl SseDecode for String {
        fn sse_decode(deserializer:
                &mut flutter_rust_bridge::for_generated::SseDeserializer)
            -> Self {
            let mut inner = <Vec<u8>>::sse_decode(deserializer);
            return String::from_utf8(inner).unwrap();
        }
    }
    impl SseDecode for Vec<u64> {
        fn sse_decode(deserializer:
                &mut flutter_rust_bridge::for_generated::SseDeserializer)
            -> Self {
            let mut len_ = <i32>::sse_decode(deserializer);
            let mut ans_ = ::alloc::vec::Vec::new();
            for idx_ in 0..len_ {
                ans_.push(<u64>::sse_decode(deserializer));
            }
            return ans_;
        }
    }
    impl SseDecode for Vec<u8> {
        fn sse_decode(deserializer:
                &mut flutter_rust_bridge::for_generated::SseDeserializer)
            -> Self {
            let mut len_ = <i32>::sse_decode(deserializer);
            let mut ans_ = ::alloc::vec::Vec::new();
            for idx_ in 0..len_ { ans_.push(<u8>::sse_decode(deserializer)); }
            return ans_;
        }
    }
    impl SseDecode for u64 {
        fn sse_decode(deserializer:
                &mut flutter_rust_bridge::for_generated::SseDeserializer)
            -> Self {
            deserializer.cursor.read_u64::<NativeEndian>().unwrap()
        }
    }
    impl SseDecode for u8 {
        fn sse_decode(deserializer:
                &mut flutter_rust_bridge::for_generated::SseDeserializer)
            -> Self {
            deserializer.cursor.read_u8().unwrap()
        }
    }
    impl SseDecode for () {
        fn sse_decode(deserializer:
                &mut flutter_rust_bridge::for_generated::SseDeserializer)
            -> Self {}
    }
    impl SseDecode for i32 {
        fn sse_decode(deserializer:
                &mut flutter_rust_bridge::for_generated::SseDeserializer)
            -> Self {
            deserializer.cursor.read_i32::<NativeEndian>().unwrap()
        }
    }
    impl SseDecode for bool {
        fn sse_decode(deserializer:
                &mut flutter_rust_bridge::for_generated::SseDeserializer)
            -> Self {
            deserializer.cursor.read_u8().unwrap() != 0
        }
    }
    fn pde_ffi_dispatcher_primary_impl(func_id: i32,
        port: flutter_rust_bridge::for_generated::MessagePort,
        ptr:
            flutter_rust_bridge::for_generated::PlatformGeneralizedUint8ListPtr,
        rust_vec_len: i32, data_len: i32) {
        match func_id {
            1 =>
                wire__crate__api__simple__init_app_impl(port, ptr,
                    rust_vec_len, data_len),
            _ =>
                ::core::panicking::panic("internal error: entered unreachable code"),
        }
    }
    fn pde_ffi_dispatcher_sync_impl(func_id: i32,
        ptr:
            flutter_rust_bridge::for_generated::PlatformGeneralizedUint8ListPtr,
        rust_vec_len: i32, data_len: i32)
        -> flutter_rust_bridge::for_generated::WireSyncRust2DartSse {
        match func_id {
            2 =>
                wire__crate__api__simple__test_impl(ptr, rust_vec_len,
                    data_len),
            _ =>
                ::core::panicking::panic("internal error: entered unreachable code"),
        }
    }
    impl SseEncode for std::collections::HashSet<u64> {
        fn sse_encode(self,
            serializer:
                &mut flutter_rust_bridge::for_generated::SseSerializer) {
            <Vec<u64>>::sse_encode(self.into_iter().collect(), serializer);
        }
    }
    impl SseEncode for String {
        fn sse_encode(self,
            serializer:
                &mut flutter_rust_bridge::for_generated::SseSerializer) {
            <Vec<u8>>::sse_encode(self.into_bytes(), serializer);
        }
    }
    impl SseEncode for Vec<u64> {
        fn sse_encode(self,
            serializer:
                &mut flutter_rust_bridge::for_generated::SseSerializer) {
            <i32>::sse_encode(self.len() as _, serializer);
            for item in self { <u64>::sse_encode(item, serializer); }
        }
    }
    impl SseEncode for Vec<u8> {
        fn sse_encode(self,
            serializer:
                &mut flutter_rust_bridge::for_generated::SseSerializer) {
            <i32>::sse_encode(self.len() as _, serializer);
            for item in self { <u8>::sse_encode(item, serializer); }
        }
    }
    impl SseEncode for u64 {
        fn sse_encode(self,
            serializer:
                &mut flutter_rust_bridge::for_generated::SseSerializer) {
            serializer.cursor.write_u64::<NativeEndian>(self).unwrap();
        }
    }
    impl SseEncode for u8 {
        fn sse_encode(self,
            serializer:
                &mut flutter_rust_bridge::for_generated::SseSerializer) {
            serializer.cursor.write_u8(self).unwrap();
        }
    }
    impl SseEncode for () {
        fn sse_encode(self,
            serializer:
                &mut flutter_rust_bridge::for_generated::SseSerializer) {}
    }
    impl SseEncode for i32 {
        fn sse_encode(self,
            serializer:
                &mut flutter_rust_bridge::for_generated::SseSerializer) {
            serializer.cursor.write_i32::<NativeEndian>(self).unwrap();
        }
    }
    impl SseEncode for bool {
        fn sse_encode(self,
            serializer:
                &mut flutter_rust_bridge::for_generated::SseSerializer) {
            serializer.cursor.write_u8(self as _).unwrap();
        }
    }
    #[cfg(not(target_family = "wasm"))]
    mod io {
        use super::*;
        use flutter_rust_bridge::for_generated::byteorder::{
            NativeEndian, ReadBytesExt, WriteBytesExt,
        };
        use flutter_rust_bridge::for_generated::{
            transform_result_dco, Lifetimeable, Lockable,
        };
        use flutter_rust_bridge::{Handler, IntoIntoDart};
        pub trait NewWithNullPtr {
            fn new_with_null_ptr()
            -> Self;
        }
        impl<T> NewWithNullPtr for *mut T {
            fn new_with_null_ptr() -> Self { std::ptr::null_mut() }
        }
        #[no_mangle]
        pub extern "C" fn frb_get_rust_content_hash() -> i32 {
            FLUTTER_RUST_BRIDGE_CODEGEN_CONTENT_HASH
        }
        #[no_mangle]
        pub extern "C" fn frb_pde_ffi_dispatcher_primary(func_id: i32,
            port_: i64, ptr_: *mut u8, rust_vec_len_: i32, data_len_: i32) {
            pde_ffi_dispatcher_primary_impl(func_id, port_, ptr_,
                rust_vec_len_, data_len_)
        }
        #[no_mangle]
        pub extern "C" fn frb_pde_ffi_dispatcher_sync(func_id: i32,
            ptr_: *mut u8, rust_vec_len_: i32, data_len_: i32)
            -> ::flutter_rust_bridge::for_generated::WireSyncRust2DartSse {
            pde_ffi_dispatcher_sync_impl(func_id, ptr_, rust_vec_len_,
                data_len_)
        }
        #[no_mangle]
        pub extern "C" fn frb_dart_fn_deliver_output(call_id: i32,
            ptr_: *mut u8, rust_vec_len_: i32, data_len_: i32) {
            let message =
                unsafe {
                    ::flutter_rust_bridge::for_generated::Dart2RustMessageSse::from_wire(ptr_,
                        rust_vec_len_, data_len_)
                };
            FLUTTER_RUST_BRIDGE_HANDLER.dart_fn_handle_output(call_id,
                message)
        }
    }
    #[cfg(not(target_family = "wasm"))]
    pub use io::*;
}
 stderr=    Checking rust_lib_frb_int v0.1.0 (C:\dev\frb_int\rust)
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s


[2025-01-22T21:05:59.032Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\codegen\parser\mir\parser\function\real\mod.rs:140] parse_function function name: "init_app"
[2025-01-22T21:05:59.032Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\codegen\parser\mir\parser\function\real\lifetime.rs:36] parse_function_lifetime name=init_app inputs_lifetimes=[] output_lifetimes=[] ans=ParseFunctionLifetimeOutput { needs_extend_lifetime_per_arg: [] }
[2025-01-22T21:05:59.032Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\codegen\parser\mir\parser\function\real\mod.rs:140] parse_function function name: "test"
[2025-01-22T21:05:59.033Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\codegen\parser\mir\parser\function\real\lifetime.rs:36] parse_function_lifetime name=test inputs_lifetimes=[[]] output_lifetimes=[] ans=ParseFunctionLifetimeOutput { needs_extend_lifetime_per_arg: [false] }
[2025-01-22T21:05:59.033Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\codegen\parser\mir\parser\ty\ty.rs:12] TypeParserWithContext.parse_type ty=u64 ans=Primitive(U64)
[2025-01-22T21:05:59.033Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\codegen\parser\mir\parser\ty\ty.rs:12] TypeParserWithContext.parse_type ty=HashSet < u64 > ans=Delegate(Set(MirTypeDelegateSet { inner: Primitive(U64) }))
[2025-01-22T21:05:59.034Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\codegen\parser\mir\parser\ty\ty.rs:12] TypeParserWithContext.parse_type ty=String ans=Delegate(String)
[2025-01-22T21:05:59.035Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\codegen\parser\mir\parser\function\real\mod.rs:140] parse_function function name: "init_app"
[2025-01-22T21:05:59.035Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\codegen\parser\mir\parser\function\real\lifetime.rs:36] parse_function_lifetime name=init_app inputs_lifetimes=[] output_lifetimes=[] ans=ParseFunctionLifetimeOutput { needs_extend_lifetime_per_arg: [] }
[2025-01-22T21:05:59.036Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\codegen\parser\mir\parser\function\real\mod.rs:140] parse_function function name: "test"
[2025-01-22T21:05:59.036Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\codegen\parser\mir\parser\function\real\lifetime.rs:36] parse_function_lifetime name=test inputs_lifetimes=[[]] output_lifetimes=[] ans=ParseFunctionLifetimeOutput { needs_extend_lifetime_per_arg: [false] }
[2025-01-22T21:05:59.036Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\codegen\parser\mir\parser\ty\ty.rs:12] TypeParserWithContext.parse_type ty=u64 ans=Primitive(U64)
[2025-01-22T21:05:59.037Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\codegen\parser\mir\parser\ty\ty.rs:12] TypeParserWithContext.parse_type ty=HashSet < u64 > ans=Delegate(Set(MirTypeDelegateSet { inner: Primitive(U64) }))
[2025-01-22T21:05:59.037Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\codegen\parser\mir\parser\ty\ty.rs:12] TypeParserWithContext.parse_type ty=String ans=Delegate(String)
[2025-01-22T21:05:59.042Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\cbindgen.rs:26] execute cbindgen rust_crate_dir="\\\\?\\C:\\dev\\frb_int\\rust" c_output_path="C:\\Users\\Dominic\\AppData\\Local\\Temp\\.tmpu1pytJ.h"
[2025-01-22T21:05:59.042Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\cbindgen.rs:46] cbindgen config: Config {
    header: None,
    includes: [],
    sys_includes: [
        "stdbool.h",
        "stdint.h",
        "stdlib.h",
    ],
    after_includes: Some(
        "// EXTRA BEGIN\ntypedef struct DartCObject *WireSyncRust2DartDco;\ntypedef struct WireSyncRust2DartSse {\n  uint8_t *ptr;\n  int32_t len;\n} WireSyncRust2DartSse;\n\ntypedef int64_t DartPort;\ntypedef bool (*DartPostCObjectFnType)(DartPort port_id, void *message);\nvoid store_dart_post_cobject(DartPostCObjectFnType ptr);\n// EXTRA END\ntypedef struct _Dart_Handle* Dart_Handle;",
    ),
    trailer: None,
    include_guard: None,
    pragma_once: false,
    no_includes: true,
    package_version: false,
    autogen_warning: None,
    include_version: false,
    namespace: None,
    namespaces: None,
    using_namespaces: None,
    braces: SameLine,
    line_length: 100,
    tab_width: 2,
    line_endings: LF,
    language: C,
    cpp_compat: false,
    style: Both,
    sort_by: None,
    usize_is_size_t: false,
    parse: ParseConfig {
        parse_deps: false,
        include: None,
        exclude: [],
        expand: ParseExpandConfig {
            crates: [],
            all_features: false,
            default_features: true,
            features: None,
            profile: Debug,
        },
        clean: false,
        extra_bindings: [],
    },
    export: ExportConfig {
        include: [
            "wire_cst_list_prim_u_64_strict",
            "wire_cst_list_prim_u_8_strict",
        ],
        exclude: [],
        rename: {},
        pre_body: {},
        body: {},
        prefix: None,
        item_types: [],
        renaming_overrides_prefixing: false,
        mangle: MangleConfig {
            rename_types: None,
            remove_underscores: false,
        },
    },
    macro_expansion: MacroExpansionConfig {
        bitflags: false,
    },
    layout: LayoutConfig {
        packed: None,
        aligned_n: None,
    },
    function: FunctionConfig {
        prefix: None,
        postfix: None,
        must_use: None,
        deprecated: None,
        deprecated_with_note: None,
        args: Auto,
        rename_args: None,
        swift_name_macro: None,
        sort_by: None,
        no_return: None,
    },
    structure: StructConfig {
        rename_fields: None,
        derive_constructor: false,
        derive_eq: false,
        derive_neq: false,
        derive_lt: false,
        derive_lte: false,
        derive_gt: false,
        derive_gte: false,
        derive_ostream: false,
        associated_constants_in_body: false,
        must_use: None,
        deprecated: None,
        deprecated_with_note: None,
    },
    enumeration: EnumConfig {
        rename_variants: None,
        rename_variant_name_fields: SnakeCase,
        add_sentinel: false,
        prefix_with_name: false,
        derive_helper_methods: false,
        derive_const_casts: false,
        derive_mut_casts: false,
        cast_assert_name: None,
        must_use: None,
        deprecated: None,
        deprecated_with_note: None,
        deprecated_variant: None,
        deprecated_variant_with_note: None,
        derive_tagged_enum_destructor: false,
        derive_tagged_enum_copy_constructor: false,
        derive_tagged_enum_copy_assignment: false,
        derive_ostream: false,
        enum_class: true,
        private_default_tagged_enum_constructor: false,
    },
    constant: ConstantConfig {
        allow_static_const: true,
        allow_constexpr: true,
        sort_by: None,
    },
    defines: {},
    documentation: true,
    documentation_style: Auto,
    documentation_length: Full,
    pointer: PtrConfig {
        non_null_attribute: None,
    },
    only_target_dependencies: false,
    cython: CythonConfig {
        header: None,
        cimports: {},
    },
    config_path: None,
}
[2025-01-22T21:05:59.043Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\cbindgen.rs:73] cbindgen parsed_crate_dir=C:\dev\frb_int\rust
[2025-01-22T21:05:59.272Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\cbindgen-0.27.0\src\bindgen\parser.rs:151] Parsing crate rust_lib_frb_int
[2025-01-22T21:05:59.276Z WARN C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\cbindgen-0.27.0\src\bindgen\parser.rs:855] Skip rust_lib_frb_int::FLUTTER_RUST_BRIDGE_CODEGEN_VERSION - (not `pub`).
[2025-01-22T21:05:59.277Z WARN C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\cbindgen-0.27.0\src\bindgen\parser.rs:855] Skip rust_lib_frb_int::FLUTTER_RUST_BRIDGE_CODEGEN_CONTENT_HASH - (not `pub`).
[2025-01-22T21:05:59.277Z INFO C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\cbindgen-0.27.0\src\bindgen\parser.rs:739] Take rust_lib_frb_int::frbgen_frb_int_wire__crate__api__simple__init_app.
[2025-01-22T21:05:59.278Z INFO C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\cbindgen-0.27.0\src\bindgen\parser.rs:739] Take rust_lib_frb_int::frbgen_frb_int_wire__crate__api__simple__test.
[2025-01-22T21:05:59.278Z INFO C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\cbindgen-0.27.0\src\bindgen\parser.rs:739] Take rust_lib_frb_int::frbgen_frb_int_cst_new_list_prim_u_64_strict.
[2025-01-22T21:05:59.278Z INFO C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\cbindgen-0.27.0\src\bindgen\parser.rs:739] Take rust_lib_frb_int::frbgen_frb_int_cst_new_list_prim_u_8_strict.
[2025-01-22T21:05:59.279Z INFO C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\cbindgen-0.27.0\src\bindgen\parser.rs:921] Take rust_lib_frb_int::wire_cst_list_prim_u_64_strict.
[2025-01-22T21:05:59.279Z INFO C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\cbindgen-0.27.0\src\bindgen\parser.rs:921] Take rust_lib_frb_int::wire_cst_list_prim_u_8_strict.
[2025-01-22T21:05:59.281Z WARN C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\cbindgen-0.27.0\src\bindgen\ir\ty.rs:715] Can't find WireSyncRust2DartDco. This usually means that this type was incompatible or not found.
[2025-01-22T21:05:59.281Z WARN C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\cbindgen-0.27.0\src\bindgen\ir\cfg.rs:230] Missing `[defines]` entry for `target_family = "wasm"` in cbindgen config.
[2025-01-22T21:05:59.282Z WARN C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\cbindgen-0.27.0\src\bindgen\ir\cfg.rs:230] Missing `[defines]` entry for `target_family = "wasm"` in cbindgen config.
[2025-01-22T21:05:59.282Z WARN C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\cbindgen-0.27.0\src\bindgen\ir\cfg.rs:230] Missing `[defines]` entry for `target_family = "wasm"` in cbindgen config.
[2025-01-22T21:05:59.283Z WARN C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\cbindgen-0.27.0\src\bindgen\ir\cfg.rs:230] Missing `[defines]` entry for `target_family = "wasm"` in cbindgen config.
[2025-01-22T21:05:59.283Z WARN C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\cbindgen-0.27.0\src\bindgen\ir\cfg.rs:230] Missing `[defines]` entry for `target_family = "wasm"` in cbindgen config.
[2025-01-22T21:05:59.284Z WARN C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\cbindgen-0.27.0\src\bindgen\ir\cfg.rs:230] Missing `[defines]` entry for `target_family = "wasm"` in cbindgen config.
[2025-01-22T21:05:59.284Z WARN C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\cbindgen-0.27.0\src\bindgen\ir\cfg.rs:230] Missing `[defines]` entry for `target_family = "wasm"` in cbindgen config.
[2025-01-22T21:05:59.288Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\ffigen.rs:57] execute ffigen c_path="C:\\Users\\Dominic\\AppData\\Local\\Temp\\.tmpQ6u88K.h" dart_path="C:\\Users\\Dominic\\AppData\\Local\\Temp\\.tmpQ6u88K.h" llvm_path=["/opt/homebrew/opt/llvm", "/usr/local/opt/llvm", "/usr/lib/llvm-9", "/usr/lib/llvm-10", "/usr/lib/llvm-11", "/usr/lib/llvm-12", "/usr/lib/llvm-13", "/usr/lib/llvm-14", "/usr/lib/", "/usr/lib64/", "C:/Program Files/llvm", "C:/msys64/mingw64"]
[2025-01-22T21:05:59.289Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\ffigen.rs:77] ffigen_raw config="{\"output\":\"C:\\\\Users\\\\Dominic\\\\AppData\\\\Local\\\\Temp\\\\.tmpaxrO6f\",\"name\":\"RustLibWire\",\"description\":\"generated by flutter_rust_bridge\",\"headers\":{\"entry-points\":[\"C:\\\\Users\\\\Dominic\\\\AppData\\\\Local\\\\Temp\\\\.tmpQ6u88K.h\"],\"include-directives\":[\"C:\\\\Users\\\\Dominic\\\\AppData\\\\Local\\\\Temp\\\\.tmpQ6u88K.h\"]},\"comments\":false,\"preamble\":\"// ignore_for_file: camel_case_types, non_constant_identifier_names, avoid_positional_boolean_parameters, annotate_overrides, constant_identifier_names\",\"llvm-path\":[\"/opt/homebrew/opt/llvm\",\"/usr/local/opt/llvm\",\"/usr/lib/llvm-9\",\"/usr/lib/llvm-10\",\"/usr/lib/llvm-11\",\"/usr/lib/llvm-12\",\"/usr/lib/llvm-13\",\"/usr/lib/llvm-14\",\"/usr/lib/\",\"/usr/lib64/\",\"C:/Program Files/llvm\",\"C:/msys64/mingw64\"],\"compiler-opts\":[],\"functions\":{\"rename\":{\"frbgen_frb_int_(.*)\":\"$1\"}},\"ignore-source-errors\":true}" config_file=NamedTempFile("C:\\Users\\Dominic\\AppData\\Local\\Temp\\.tmpljH2tt")
[2025-01-22T21:05:59.289Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\utils\dart_repository\dart_repo.rs:21] Guessing toolchain the runner is run into
[2025-01-22T21:05:59.290Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\command_runner.rs:129] execute command: bin=powershell args="-noprofile -command & \"flutter\" \"pub\" \"run\" \"ffigen\" \"--config\" \"C:\\\\Users\\\\Dominic\\\\AppData\\\\Local\\\\Temp\\\\.tmpljH2tt\"" current_dir=Some("\\\\?\\C:\\dev\\frb_int") cmd="powershell" "-noprofile" "-command" "& \"flutter\" \"pub\" \"run\" \"ffigen\" \"--config\" \"C:\\\\Users\\\\Dominic\\\\AppData\\\\Local\\\\Temp\\\\.tmpljH2tt\""
[2025-01-22T21:06:01.992Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\command_runner.rs:140] command="powershell" "-noprofile" "-command" "& \"flutter\" \"pub\" \"run\" \"ffigen\" \"--config\" \"C:\\\\Users\\\\Dominic\\\\AppData\\\\Local\\\\Temp\\\\.tmpljH2tt\"" stdout=[INFO]   : Running in Directory: 'C:\dev\frb_int'
[INFO]   : Input Headers: [file:///C:/Users/Dominic/AppData/Local/Temp/.tmpQ6u88K.h]
[WARNING]: No definition found for declaration -(Cursor) spelling: DartCObject, kind: 2, kindSpelling: StructDecl, type: 105, typeSpelling: struct DartCObject, usr: c:@S@DartCObject
[WARNING]: No definition found for declaration -(Cursor) spelling: DartCObject, kind: 2, kindSpelling: StructDecl, type: 105, typeSpelling: struct DartCObject, usr: c:@S@DartCObject
[WARNING]: No definition found for declaration -(Cursor) spelling: _Dart_Handle, kind: 2, kindSpelling: StructDecl, type: 105, typeSpelling: struct _Dart_Handle, usr: c:@S@_Dart_Handle
[WARNING]: No definition found for declaration -(Cursor) spelling: _Dart_Handle, kind: 2, kindSpelling: StructDecl, type: 105, typeSpelling: struct _Dart_Handle, usr: c:@S@_Dart_Handle
[WARNING]: Generated declaration '_Dart_Handle' starts with '_' and therefore will be private.
[INFO]   : Finished, Bindings generated in C:\Users\Dominic\AppData\Local\Temp\.tmpaxrO6f
 stderr=
[2025-01-22T21:06:02.002Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\dart_fix.rs:11] execute dart_fix base_path="\\\\?\\C:\\dev\\frb_int\\lib\\src\\rust"
[2025-01-22T21:06:02.003Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\command_runner.rs:129] execute command: bin=powershell args="-noprofile -command & \"dart\" \"fix\" \"--apply\" \".\"" current_dir=Some("\\\\?\\C:\\dev\\frb_int\\lib\\src\\rust") cmd="powershell" "-noprofile" "-command" "& \"dart\" \"fix\" \"--apply\" \".\""
[2025-01-22T21:06:04.406Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\command_runner.rs:140] command="powershell" "-noprofile" "-command" "& \"dart\" \"fix\" \"--apply\" \".\"" stdout=Computing fixes in rust...
Nothing to fix!
 stderr=
[2025-01-22T21:06:04.407Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\dart_format.rs:24] execute dart_format paths=["lib\\src\\rust\\frb_generated.web.dart", "lib\\src\\rust\\api\\simple.dart", "lib\\src\\rust\\frb_generated.io.dart", "lib\\src\\rust\\frb_generated.dart"] line_length=80
[2025-01-22T21:06:04.409Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\command_runner.rs:129] execute command: bin=powershell args="-noprofile -command & \"dart\" \"format\" \"--line-length\" \"80\" \"lib\\\\src\\\\rust\\\\frb_generated.web.dart\" \"lib\\\\src\\\\rust\\\\api\\\\simple.dart\" \"lib\\\\src\\\\rust\\\\frb_generated.io.dart\" \"lib\\\\src\\\\rust\\\\frb_generated.dart\"" current_dir=Some("\\\\?\\C:\\dev\\frb_int") cmd="powershell" "-noprofile" "-command" "& \"dart\" \"format\" \"--line-length\" \"80\" \"lib\\\\src\\\\rust\\\\frb_generated.web.dart\" \"lib\\\\src\\\\rust\\\\api\\\\simple.dart\" \"lib\\\\src\\\\rust\\\\frb_generated.io.dart\" \"lib\\\\src\\\\rust\\\\frb_generated.dart\""
[2025-01-22T21:06:05.986Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\command_runner.rs:140] command="powershell" "-noprofile" "-command" "& \"dart\" \"format\" \"--line-length\" \"80\" \"lib\\\\src\\\\rust\\\\frb_generated.web.dart\" \"lib\\\\src\\\\rust\\\\api\\\\simple.dart\" \"lib\\\\src\\\\rust\\\\frb_generated.io.dart\" \"lib\\\\src\\\\rust\\\\frb_generated.dart\"" stdout=Formatted lib\\src\\rust\\frb_generated.web.dart
Formatted lib\\src\\rust\\api\\simple.dart
Formatted lib\\src\\rust\\frb_generated.io.dart
Formatted lib\\src\\rust\\frb_generated.dart
Formatted 4 files (4 changed) in 0.32 seconds.
 stderr=
[2025-01-22T21:06:05.987Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\format_rust.rs:9] execute format_rust paths=["src\\frb_generated.rs"]
[2025-01-22T21:06:05.988Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\command_runner.rs:129] execute command: bin=powershell args="-noprofile -command & \"rustfmt\" \"--edition\" \"2018\" \"src\\\\frb_generated.rs\"" current_dir=Some("\\\\?\\C:\\dev\\frb_int\\rust") cmd="powershell" "-noprofile" "-command" "& \"rustfmt\" \"--edition\" \"2018\" \"src\\\\frb_generated.rs\""
[2025-01-22T21:06:06.707Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\commands\command_runner.rs:140] command="powershell" "-noprofile" "-command" "& \"rustfmt\" \"--edition\" \"2018\" \"src\\\\frb_generated.rs\"" stdout= stderr=
[2025-01-22T21:06:06.710Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\utils\dart_repository\dart_repo.rs:21] Guessing toolchain the runner is run into
[2025-01-22T21:06:06.711Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\utils\dart_repository\dart_repo.rs:68] Checking presence of flutter_rust_bridge in dependencies at "\\\\?\\C:\\dev\\frb_int"
[2025-01-22T21:06:06.712Z DEBUG C:\Users\Dominic\.cargo\registry\src\index.crates.io-6f17d22bba15001f\flutter_rust_bridge_codegen-2.7.0\src\library\utils\dart_repository\dart_repo.rs:93] Checking presence of flutter_rust_bridge in dependencies at "\\\\?\\C:\\dev\\frb_int"
Done!

OS

Windows 10

Version of flutter_rust_bridge_codegen

2.7.0

Flutter info

[√] Flutter (Channel stable, 3.27.0, on Microsoft Windows [Version 10.0.19045.5371], locale en-US)
    • Flutter version 3.27.0 on channel stable at C:\SDKs\flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 8495dee1fd (6 weeks ago), 2024-12-10 14:23:39 -0800
    • Engine revision 83bacfc525
    • Dart version 3.6.0
    • DevTools version 2.40.2

[√] Windows Version (Installed version of Windows is version 10 or higher)

[√] Android toolchain - develop for Android devices (Android SDK version 36.0.0-rc1)
    • Android SDK at C:\Users\Dominic\AppData\Local\Android\sdk
    • Platform android-35, build-tools 36.0.0-rc1
    • Java binary at: C:\Program Files\Android\Android Studio1\jbr\bin\java
    • Java version OpenJDK Runtime Environment (build 21.0.3+-12282718-b509.11)     
    • All Android licenses accepted.

[√] Chrome - develop for the web
    • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[√] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.3.4)      
    • Visual Studio at C:\Program Files\Microsoft Visual Studio\2022\Community      
    • Visual Studio Community 2022 version 17.3.32901.215
    • Windows 10 SDK version 10.0.19041.0

[√] Android Studio (version 2024.2)
    • Android Studio at C:\Program Files\Android\Android Studio1
    • Flutter plugin can be installed from:
       https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
       https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 21.0.3+-12282718-b509.11)     

[√] VS Code (version 1.96.2)
    • VS Code at C:\Users\Dominic\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.102.0

[√] Connected device (4 available)
    • Pixel 7 (mobile)  • 2A271FDH200DGG • android-arm64  • Android 15 (API 35)
    • Windows (desktop) • windows        • windows-x64    • Microsoft Windows [Version 10.0.19045.5371]
    • Chrome (web)      • chrome         • web-javascript • Google Chrome 131.0.6778.265
    • Edge (web)        • edge           • web-javascript • Microsoft Edge 131.0.2903.146

[√] Network resources
    • All expected network resources are available.

• No issues found!

[welcome]

Hi! Thanks for opening your first issue here! 😄

[domph]

From a cursory glance, it seems likeUint64List inside generalized_typed_data/_io.dart needs to be modified to accept construction from a List<BigInt>? Not sure if larger changes are required though.

[fzyzcjy]

Yes, looks like a bug (probably because how u64 is handled especially on the web...), and will be fixed in the next batch. Btw, try type_64bit_int: true to see whether it workarounds.

[domph]

Yeah, it works with type_64bit_int: true (so long as full_dep is not enabled), though of course a little unideal since it doesn't capture the full range of values for a u64. If full_dep is enabled, though, an error occurs in the frb_generated.io.dart file:

Error:

lib/src/rust/frb_generated.io.dart:131:7: Error: The method 'cst_api_fill_to_wire_CastedPrimitive_u_64' isn't defined for the class 'RustLibApiImplPlatform'.
 - 'RustLibApiImplPlatform' is from 'package:frb_int/src/rust/frb_generated.io.dart' ('lib/src/rust/frb_generated.io.dart').
Try correcting the name to the name of an existing method, or defining a method named 'cst_api_fill_to_wire_CastedPrimitive_u_64'.
      cst_api_fill_to_wire_CastedPrimitive_u_64(raw[i], ans.ref.ptr[i]);
      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Code snippet inside frb_generated.io.dart:

  @protected
  ffi.Pointer<wire_cst_list_CastedPrimitive_u_64>
      cst_encode_list_CastedPrimitive_u_64(List<int> raw) {
    // Codec=Cst (C-struct based), see doc to use other codecs
    final ans = wire.cst_new_list_CastedPrimitive_u_64(raw.length);
    for (var i = 0; i < raw.length; ++i) {
      cst_api_fill_to_wire_CastedPrimitive_u_64(raw[i], ans.ref.ptr[i]);
    }
    return ans;
  }