diff options
Diffstat (limited to '')
| -rw-r--r-- | source/xap/mozilla-firefox/8f889cf198ae7ffa9341423cb5a07ed39c07463a.patch | 801 |
1 files changed, 0 insertions, 801 deletions
diff --git a/source/xap/mozilla-firefox/8f889cf198ae7ffa9341423cb5a07ed39c07463a.patch b/source/xap/mozilla-firefox/8f889cf198ae7ffa9341423cb5a07ed39c07463a.patch deleted file mode 100644 index 89e7c12b8..000000000 --- a/source/xap/mozilla-firefox/8f889cf198ae7ffa9341423cb5a07ed39c07463a.patch +++ /dev/null @@ -1,801 +0,0 @@ -From 8f889cf198ae7ffa9341423cb5a07ed39c07463a Mon Sep 17 00:00:00 2001 -From: Mike Hommey <mh@glandium.org> -Date: Thu, 15 Dec 2022 16:36:52 +0900 -Subject: [PATCH] Replace the use of Hash with a custom trait - -The custom trait is expected to consistently give the result that Hash -gives on 64-bits little-endian, but on all platforms ---- - uniffi_bindgen/src/interface/attributes.rs | 19 ++-- - uniffi_bindgen/src/interface/callbacks.rs | 11 +- - uniffi_bindgen/src/interface/enum_.rs | 5 +- - uniffi_bindgen/src/interface/error.rs | 3 +- - uniffi_bindgen/src/interface/function.rs | 17 ++-- - uniffi_bindgen/src/interface/literal.rs | 11 +- - uniffi_bindgen/src/interface/mod.rs | 28 +++--- - uniffi_bindgen/src/interface/object.rs | 37 +++---- - uniffi_bindgen/src/interface/record.rs | 5 +- - uniffi_bindgen/src/interface/types/mod.rs | 3 +- - uniffi_checksum_derive/Cargo.toml | 22 ++++ - uniffi_checksum_derive/src/lib.rs | 111 +++++++++++++++++++++ - uniffi_meta/Cargo.toml | 1 + - uniffi_meta/src/lib.rs | 89 +++++++++++++++-- - 14 files changed, 288 insertions(+), 74 deletions(-) - create mode 100644 uniffi_checksum_derive/Cargo.toml - create mode 100644 uniffi_checksum_derive/src/lib.rs - -diff --git a/uniffi_bindgen/src/interface/attributes.rs b/uniffi_bindgen/src/interface/attributes.rs -index 49b885520..3c9bd522b 100644 ---- a/uniffi_bindgen/src/interface/attributes.rs -+++ b/uniffi_bindgen/src/interface/attributes.rs -@@ -15,13 +15,14 @@ - //! if we grow significantly more complicated attribute handling. - - use anyhow::{bail, Result}; -+use uniffi_meta::Checksum; - - /// Represents an attribute parsed from UDL, like `[ByRef]` or `[Throws]`. - /// - /// This is a convenience enum for parsing UDL attributes and erroring out if we encounter - /// any unsupported ones. These don't convert directly into parts of a `ComponentInterface`, but - /// may influence the properties of things like functions and arguments. --#[derive(Debug, Clone, Hash)] -+#[derive(Debug, Clone, Checksum)] - pub(super) enum Attribute { - ByRef, - Enum, -@@ -119,7 +120,7 @@ where - - /// Attributes that can be attached to an `enum` definition in the UDL. - /// There's only one case here: using `[Error]` to mark an enum as an error class. --#[derive(Debug, Clone, Hash, Default)] -+#[derive(Debug, Clone, Checksum, Default)] - pub(super) struct EnumAttributes(Vec<Attribute>); - - impl EnumAttributes { -@@ -155,7 +156,7 @@ impl<T: TryInto<EnumAttributes, Error = anyhow::Error>> TryFrom<Option<T>> for E - /// - /// This supports the `[Throws=ErrorName]` attribute for functions that - /// can produce an error. --#[derive(Debug, Clone, Hash, Default)] -+#[derive(Debug, Clone, Checksum, Default)] - pub(super) struct FunctionAttributes(Vec<Attribute>); - - impl FunctionAttributes { -@@ -198,7 +199,7 @@ impl<T: TryInto<FunctionAttributes, Error = anyhow::Error>> TryFrom<Option<T>> - /// - /// This supports the `[ByRef]` attribute for arguments that should be passed - /// by reference in the generated Rust scaffolding. --#[derive(Debug, Clone, Hash, Default)] -+#[derive(Debug, Clone, Checksum, Default)] - pub(super) struct ArgumentAttributes(Vec<Attribute>); - - impl ArgumentAttributes { -@@ -233,7 +234,7 @@ impl<T: TryInto<ArgumentAttributes, Error = anyhow::Error>> TryFrom<Option<T>> - } - - /// Represents UDL attributes that might appear on an `interface` definition. --#[derive(Debug, Clone, Hash, Default)] -+#[derive(Debug, Clone, Checksum, Default)] - pub(super) struct InterfaceAttributes(Vec<Attribute>); - - impl InterfaceAttributes { -@@ -287,7 +288,7 @@ impl<T: TryInto<InterfaceAttributes, Error = anyhow::Error>> TryFrom<Option<T>> - /// - /// This supports the `[Throws=ErrorName]` attribute for constructors that can produce - /// an error, and the `[Name=MethodName]` for non-default constructors. --#[derive(Debug, Clone, Hash, Default)] -+#[derive(Debug, Clone, Checksum, Default)] - pub(super) struct ConstructorAttributes(Vec<Attribute>); - - impl ConstructorAttributes { -@@ -326,7 +327,7 @@ impl TryFrom<&weedle::attribute::ExtendedAttributeList<'_>> for ConstructorAttri - /// - /// This supports the `[Throws=ErrorName]` attribute for methods that can produce - /// an error, and the `[Self=ByArc]` attribute for methods that take `Arc<Self>` as receiver. --#[derive(Debug, Clone, Hash, Default)] -+#[derive(Debug, Clone, Checksum, Default)] - pub(super) struct MethodAttributes(Vec<Attribute>); - - impl MethodAttributes { -@@ -375,7 +376,7 @@ impl<T: TryInto<MethodAttributes, Error = anyhow::Error>> TryFrom<Option<T>> for - /// Actually we only support one of these right now, `[Self=ByArc]`. - /// We might add more in future, e.g. a `[Self=ByRef]` if there are cases - /// where we need to force the receiver to be taken by reference. --#[derive(Debug, Clone, Hash)] -+#[derive(Debug, Clone, Checksum)] - pub(super) enum SelfType { - ByArc, // Method receiver is `Arc<Self>`. - } -@@ -398,7 +399,7 @@ impl TryFrom<&weedle::attribute::IdentifierOrString<'_>> for SelfType { - /// Represents UDL attributes that might appear on a typedef - /// - /// This supports the `[External="crate_name"]` and `[Custom]` attributes for types. --#[derive(Debug, Clone, Hash, Default)] -+#[derive(Debug, Clone, Checksum, Default)] - pub(super) struct TypedefAttributes(Vec<Attribute>); - - impl TypedefAttributes { -diff --git a/uniffi_bindgen/src/interface/callbacks.rs b/uniffi_bindgen/src/interface/callbacks.rs -index 654652afe..886f02b29 100644 ---- a/uniffi_bindgen/src/interface/callbacks.rs -+++ b/uniffi_bindgen/src/interface/callbacks.rs -@@ -33,9 +33,10 @@ - //! # Ok::<(), anyhow::Error>(()) - //! ``` - --use std::hash::{Hash, Hasher}; -+use std::hash::Hasher; - - use anyhow::{bail, Result}; -+use uniffi_meta::Checksum; - - use super::ffi::{FFIArgument, FFIFunction, FFIType}; - use super::object::Method; -@@ -88,16 +89,16 @@ impl CallbackInterface { - } - } - --impl Hash for CallbackInterface { -- fn hash<H: Hasher>(&self, state: &mut H) { -+impl Checksum for CallbackInterface { -+ fn checksum<H: Hasher>(&self, state: &mut H) { - // We don't include the FFIFunc in the hash calculation, because: - // - it is entirely determined by the other fields, - // so excluding it is safe. - // - its `name` property includes a checksum derived from the very - // hash value we're trying to calculate here, so excluding it - // avoids a weird circular depenendency in the calculation. -- self.name.hash(state); -- self.methods.hash(state); -+ self.name.checksum(state); -+ self.methods.checksum(state); - } - } - -diff --git a/uniffi_bindgen/src/interface/enum_.rs b/uniffi_bindgen/src/interface/enum_.rs -index 04eba0d25..b8fe0ddd7 100644 ---- a/uniffi_bindgen/src/interface/enum_.rs -+++ b/uniffi_bindgen/src/interface/enum_.rs -@@ -77,6 +77,7 @@ - //! ``` - - use anyhow::{bail, Result}; -+use uniffi_meta::Checksum; - - use super::record::Field; - use super::types::{Type, TypeIterator}; -@@ -87,7 +88,7 @@ use super::{APIConverter, ComponentInterface}; - /// - /// Enums are passed across the FFI by serializing to a bytebuffer, with a - /// i32 indicating the variant followed by the serialization of each field. --#[derive(Debug, Clone, Hash)] -+#[derive(Debug, Clone, Checksum)] - pub struct Enum { - pub(super) name: String, - pub(super) variants: Vec<Variant>, -@@ -174,7 +175,7 @@ impl APIConverter<Enum> for weedle::InterfaceDefinition<'_> { - /// Represents an individual variant in an Enum. - /// - /// Each variant has a name and zero or more fields. --#[derive(Debug, Clone, Default, Hash)] -+#[derive(Debug, Clone, Default, Checksum)] - pub struct Variant { - pub(super) name: String, - pub(super) fields: Vec<Field>, -diff --git a/uniffi_bindgen/src/interface/error.rs b/uniffi_bindgen/src/interface/error.rs -index 7e9b571a1..adae769f0 100644 ---- a/uniffi_bindgen/src/interface/error.rs -+++ b/uniffi_bindgen/src/interface/error.rs -@@ -83,6 +83,7 @@ - //! ``` - - use anyhow::Result; -+use uniffi_meta::Checksum; - - use super::enum_::{Enum, Variant}; - use super::types::{Type, TypeIterator}; -@@ -94,7 +95,7 @@ use super::{APIConverter, ComponentInterface}; - /// they're handled in the FFI very differently. We create them in `uniffi::call_with_result()` if - /// the wrapped function returns an `Err` value - /// struct and assign an integer error code to each variant. --#[derive(Debug, Clone, Hash)] -+#[derive(Debug, Clone, Checksum)] - pub struct Error { - pub name: String, - enum_: Enum, -diff --git a/uniffi_bindgen/src/interface/function.rs b/uniffi_bindgen/src/interface/function.rs -index 4eff0795c..869c1b59b 100644 ---- a/uniffi_bindgen/src/interface/function.rs -+++ b/uniffi_bindgen/src/interface/function.rs -@@ -32,9 +32,10 @@ - //! # Ok::<(), anyhow::Error>(()) - //! ``` - use std::convert::TryFrom; --use std::hash::{Hash, Hasher}; -+use std::hash::Hasher; - - use anyhow::{bail, Result}; -+use uniffi_meta::Checksum; - - use super::ffi::{FFIArgument, FFIFunction}; - use super::literal::{convert_default_value, Literal}; -@@ -142,18 +143,18 @@ impl From<uniffi_meta::FnMetadata> for Function { - } - } - --impl Hash for Function { -- fn hash<H: Hasher>(&self, state: &mut H) { -+impl Checksum for Function { -+ fn checksum<H: Hasher>(&self, state: &mut H) { - // We don't include the FFIFunc in the hash calculation, because: - // - it is entirely determined by the other fields, - // so excluding it is safe. - // - its `name` property includes a checksum derived from the very - // hash value we're trying to calculate here, so excluding it - // avoids a weird circular depenendency in the calculation. -- self.name.hash(state); -- self.arguments.hash(state); -- self.return_type.hash(state); -- self.attributes.hash(state); -+ self.name.checksum(state); -+ self.arguments.checksum(state); -+ self.return_type.checksum(state); -+ self.attributes.checksum(state); - } - } - -@@ -185,7 +186,7 @@ impl APIConverter<Function> for weedle::namespace::OperationNamespaceMember<'_> - /// Represents an argument to a function/constructor/method call. - /// - /// Each argument has a name and a type, along with some optional metadata. --#[derive(Debug, Clone, Hash)] -+#[derive(Debug, Clone, Checksum)] - pub struct Argument { - pub(super) name: String, - pub(super) type_: Type, -diff --git a/uniffi_bindgen/src/interface/literal.rs b/uniffi_bindgen/src/interface/literal.rs -index 8b333c614..1aa1c8785 100644 ---- a/uniffi_bindgen/src/interface/literal.rs -+++ b/uniffi_bindgen/src/interface/literal.rs -@@ -8,12 +8,13 @@ - //! which appear in places such as default arguments. - - use anyhow::{bail, Result}; -+use uniffi_meta::Checksum; - - use super::types::Type; - - // Represents a literal value. - // Used for e.g. default argument values. --#[derive(Debug, Clone, Hash)] -+#[derive(Debug, Clone, Checksum)] - pub enum Literal { - Boolean(bool), - String(String), -@@ -35,13 +36,19 @@ pub enum Literal { - - // Represent the radix of integer literal values. - // We preserve the radix into the generated bindings for readability reasons. --#[derive(Debug, Clone, Copy, Hash)] -+#[derive(Debug, Clone, Copy)] - pub enum Radix { - Decimal = 10, - Octal = 8, - Hexadecimal = 16, - } - -+impl Checksum for Radix { -+ fn checksum<H: ::core::hash::Hasher>(&self, state: &mut H) { -+ state.write(&(*self as u64).to_le_bytes()); -+ } -+} -+ - pub(super) fn convert_default_value( - default_value: &weedle::literal::DefaultValue<'_>, - type_: &Type, -diff --git a/uniffi_bindgen/src/interface/mod.rs b/uniffi_bindgen/src/interface/mod.rs -index 9aa92e9b0..eb40ea3fd 100644 ---- a/uniffi_bindgen/src/interface/mod.rs -+++ b/uniffi_bindgen/src/interface/mod.rs -@@ -47,7 +47,7 @@ - use std::{ - collections::HashSet, - convert::TryFrom, -- hash::{Hash, Hasher}, -+ hash::Hasher, - iter, - }; - -@@ -77,7 +77,7 @@ pub use record::{Field, Record}; - - pub mod ffi; - pub use ffi::{FFIArgument, FFIFunction, FFIType}; --use uniffi_meta::{MethodMetadata, ObjectMetadata}; -+use uniffi_meta::{Checksum, MethodMetadata, ObjectMetadata}; - - /// The main public interface for this module, representing the complete details of an interface exposed - /// by a rust component and the details of consuming it via an extern-C FFI layer. -@@ -672,20 +672,16 @@ impl ComponentInterface { - } - } - --/// `ComponentInterface` structs can be hashed, but this is mostly a convenient way to --/// produce a checksum of their contents. They're not really intended to live in a hashtable. --impl Hash for ComponentInterface { -- fn hash<H: Hasher>(&self, state: &mut H) { -- // We can't hash `self.types`, but its contents are implied by the other fields -- // anyway, so it's safe to ignore it. -- self.uniffi_version.hash(state); -- self.namespace.hash(state); -- self.enums.hash(state); -- self.records.hash(state); -- self.functions.hash(state); -- self.objects.hash(state); -- self.callback_interfaces.hash(state); -- self.errors.hash(state); -+impl Checksum for ComponentInterface { -+ fn checksum<H: Hasher>(&self, state: &mut H) { -+ Checksum::checksum(&self.uniffi_version, state); -+ Checksum::checksum(&self.namespace, state); -+ Checksum::checksum(&self.enums, state); -+ Checksum::checksum(&self.records, state); -+ Checksum::checksum(&self.functions, state); -+ Checksum::checksum(&self.objects, state); -+ Checksum::checksum(&self.callback_interfaces, state); -+ Checksum::checksum(&self.errors, state); - } - } - -diff --git a/uniffi_bindgen/src/interface/object.rs b/uniffi_bindgen/src/interface/object.rs -index e366123b5..3bd6bfabe 100644 ---- a/uniffi_bindgen/src/interface/object.rs -+++ b/uniffi_bindgen/src/interface/object.rs -@@ -58,10 +58,11 @@ - //! ``` - - use std::convert::TryFrom; --use std::hash::{Hash, Hasher}; -+use std::hash::Hasher; - use std::{collections::HashSet, iter}; - - use anyhow::{bail, Result}; -+use uniffi_meta::Checksum; - - use super::ffi::{FFIArgument, FFIFunction, FFIType}; - use super::function::Argument; -@@ -190,17 +191,17 @@ impl Object { - } - } - --impl Hash for Object { -- fn hash<H: Hasher>(&self, state: &mut H) { -+impl Checksum for Object { -+ fn checksum<H: Hasher>(&self, state: &mut H) { - // We don't include the FFIFunc in the hash calculation, because: - // - it is entirely determined by the other fields, - // so excluding it is safe. - // - its `name` property includes a checksum derived from the very - // hash value we're trying to calculate here, so excluding it - // avoids a weird circular depenendency in the calculation. -- self.name.hash(state); -- self.constructors.hash(state); -- self.methods.hash(state); -+ self.name.checksum(state); -+ self.constructors.checksum(state); -+ self.methods.checksum(state); - } - } - -@@ -299,17 +300,17 @@ impl Constructor { - } - } - --impl Hash for Constructor { -- fn hash<H: Hasher>(&self, state: &mut H) { -+impl Checksum for Constructor { -+ fn checksum<H: Hasher>(&self, state: &mut H) { - // We don't include the FFIFunc in the hash calculation, because: - // - it is entirely determined by the other fields, - // so excluding it is safe. - // - its `name` property includes a checksum derived from the very - // hash value we're trying to calculate here, so excluding it - // avoids a weird circular depenendency in the calculation. -- self.name.hash(state); -- self.arguments.hash(state); -- self.attributes.hash(state); -+ self.name.checksum(state); -+ self.arguments.checksum(state); -+ self.attributes.checksum(state); - } - } - -@@ -450,19 +451,19 @@ impl From<uniffi_meta::MethodMetadata> for Method { - } - } - --impl Hash for Method { -- fn hash<H: Hasher>(&self, state: &mut H) { -+impl Checksum for Method { -+ fn checksum<H: Hasher>(&self, state: &mut H) { - // We don't include the FFIFunc in the hash calculation, because: - // - it is entirely determined by the other fields, - // so excluding it is safe. - // - its `name` property includes a checksum derived from the very - // hash value we're trying to calculate here, so excluding it - // avoids a weird circular depenendency in the calculation. -- self.name.hash(state); -- self.object_name.hash(state); -- self.arguments.hash(state); -- self.return_type.hash(state); -- self.attributes.hash(state); -+ self.name.checksum(state); -+ self.object_name.checksum(state); -+ self.arguments.checksum(state); -+ self.return_type.checksum(state); -+ self.attributes.checksum(state); - } - } - -diff --git a/uniffi_bindgen/src/interface/record.rs b/uniffi_bindgen/src/interface/record.rs -index c55200eb1..dd6a48e2c 100644 ---- a/uniffi_bindgen/src/interface/record.rs -+++ b/uniffi_bindgen/src/interface/record.rs -@@ -45,6 +45,7 @@ - //! ``` - - use anyhow::{bail, Result}; -+use uniffi_meta::Checksum; - - use super::types::{Type, TypeIterator}; - use super::{ -@@ -58,7 +59,7 @@ use super::{APIConverter, ComponentInterface}; - /// In the FFI these are represented as a byte buffer, which one side explicitly - /// serializes the data into and the other serializes it out of. So I guess they're - /// kind of like "pass by clone" values. --#[derive(Debug, Clone, Hash)] -+#[derive(Debug, Clone, Checksum)] - pub struct Record { - pub(super) name: String, - pub(super) fields: Vec<Field>, -@@ -109,7 +110,7 @@ impl APIConverter<Record> for weedle::DictionaryDefinition<'_> { - } - - // Represents an individual field on a Record. --#[derive(Debug, Clone, Hash)] -+#[derive(Debug, Clone, Checksum)] - pub struct Field { - pub(super) name: String, - pub(super) type_: Type, -diff --git a/uniffi_bindgen/src/interface/types/mod.rs b/uniffi_bindgen/src/interface/types/mod.rs -index 8a0131c9f..65426926f 100644 ---- a/uniffi_bindgen/src/interface/types/mod.rs -+++ b/uniffi_bindgen/src/interface/types/mod.rs -@@ -25,6 +25,7 @@ use std::{collections::hash_map::Entry, collections::BTreeSet, collections::Hash - - use anyhow::{bail, Result}; - use heck::ToUpperCamelCase; -+use uniffi_meta::Checksum; - - use super::ffi::FFIType; - -@@ -36,7 +37,7 @@ pub(super) use resolver::{resolve_builtin_type, TypeResolver}; - /// Represents all the different high-level types that can be used in a component interface. - /// At this level we identify user-defined types by name, without knowing any details - /// of their internal structure apart from what type of thing they are (record, enum, etc). --#[derive(Debug, Clone, Eq, PartialEq, Hash, Ord, PartialOrd)] -+#[derive(Debug, Clone, Eq, PartialEq, Checksum, Ord, PartialOrd)] - pub enum Type { - // Primitive types. - UInt8, -diff --git a/uniffi_checksum_derive/Cargo.toml b/uniffi_checksum_derive/Cargo.toml -new file mode 100644 -index 000000000..a04c31aab ---- /dev/null -+++ b/uniffi_checksum_derive/Cargo.toml -@@ -0,0 +1,22 @@ -+[package] -+name = "uniffi_checksum_derive" -+version = "0.21.0" -+authors = ["Firefox Sync Team <sync-team@mozilla.com>"] -+description = "a multi-language bindings generator for rust (checksum custom derive)" -+documentation = "https://mozilla.github.io/uniffi-rs" -+homepage = "https://mozilla.github.io/uniffi-rs" -+repository = "https://github.com/mozilla/uniffi-rs" -+license = "MPL-2.0" -+edition = "2021" -+keywords = ["ffi", "bindgen"] -+ -+[lib] -+proc-macro = true -+ -+[dependencies] -+quote = "1.0" -+syn = { version = "1.0", features = ["derive"] } -+ -+[features] -+default = [] -+nightly = [] -diff --git a/uniffi_checksum_derive/src/lib.rs b/uniffi_checksum_derive/src/lib.rs -new file mode 100644 -index 000000000..c79064d8b ---- /dev/null -+++ b/uniffi_checksum_derive/src/lib.rs -@@ -0,0 +1,111 @@ -+/* This Source Code Form is subject to the terms of the Mozilla Public -+ * License, v. 2.0. If a copy of the MPL was not distributed with this -+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ -+#![cfg_attr(feature = "nightly", feature(proc_macro_expand))] -+ -+//! Custom derive for uniffi_meta::Checksum -+ -+use proc_macro::TokenStream; -+use quote::{format_ident, quote}; -+use syn::{parse_macro_input, Data, DeriveInput, Fields, Index}; -+ -+#[proc_macro_derive(Checksum)] -+pub fn checksum_derive(input: TokenStream) -> TokenStream { -+ let input: DeriveInput = parse_macro_input!(input); -+ -+ let name = input.ident; -+ -+ let (impl_generics, ty_generics, where_clause) = input.generics.split_for_impl(); -+ -+ let code = match input.data { -+ Data::Enum(enum_) -+ if enum_.variants.len() == 1 -+ && enum_ -+ .variants -+ .iter() -+ .all(|variant| matches!(variant.fields, Fields::Unit)) => -+ { -+ quote!() -+ } -+ Data::Enum(enum_) => { -+ let match_inner = enum_.variants.iter().enumerate().map(|(num, variant)| { -+ let num = num as u64; -+ let ident = &variant.ident; -+ if variant.discriminant.is_some() { -+ panic!("#[derive(Checksum)] doesn't support explicit discriminants in enums"); -+ } -+ let discriminant = quote! { state.write(&#num.to_le_bytes()) }; -+ match &variant.fields { -+ Fields::Unnamed(fields) => { -+ let field_idents = fields -+ .unnamed -+ .iter() -+ .enumerate() -+ .map(|(num, _)| format_ident!("__self_{}", num)) -+ .collect::<Vec<_>>(); -+ let field_stmts = field_idents -+ .iter() -+ .map(|ident| quote! { Checksum::checksum(#ident, state); }); -+ quote! { -+ Self::#ident(#(#field_idents,)*) => { -+ #discriminant; -+ #(#field_stmts)* -+ } -+ } -+ } -+ Fields::Named(fields) => { -+ let field_idents = fields -+ .named -+ .iter() -+ .map(|field| field.ident.as_ref().unwrap()) -+ .collect::<Vec<_>>(); -+ let field_stmts = field_idents -+ .iter() -+ .map(|ident| quote! { Checksum::checksum(#ident, state); }); -+ quote! { -+ Self::#ident { #(#field_idents,)* } => { -+ #discriminant; -+ #(#field_stmts)* -+ } -+ } -+ } -+ Fields::Unit => quote! { Self::#ident => #discriminant, }, -+ } -+ }); -+ quote! { -+ match self { -+ #(#match_inner)* -+ } -+ } -+ } -+ Data::Struct(struct_) => { -+ let stmts = -+ struct_ -+ .fields -+ .iter() -+ .enumerate() -+ .map(|(num, field)| match field.ident.as_ref() { -+ Some(ident) => quote! { Checksum::checksum(&self.#ident, state); }, -+ None => { -+ let i = Index::from(num); -+ quote! { Checksum::checksum(&self.#i, state); } -+ } -+ }); -+ quote! { -+ #(#stmts)* -+ } -+ } -+ Data::Union(_) => { -+ panic!("#[derive(Checksum)] is not supported for unions"); -+ } -+ }; -+ -+ quote! { -+ impl #impl_generics Checksum for #name #ty_generics #where_clause { -+ fn checksum<__H: ::core::hash::Hasher>(&self, state: &mut __H) { -+ #code -+ } -+ } -+ } -+ .into() -+} -diff --git a/uniffi_meta/Cargo.toml b/uniffi_meta/Cargo.toml -index ca33156df..358b6ef4c 100644 ---- a/uniffi_meta/Cargo.toml -+++ b/uniffi_meta/Cargo.toml -@@ -10,3 +10,4 @@ keywords = ["ffi", "bindgen"] - - [dependencies] - serde = { version = "1.0.136", features = ["derive"] } -+uniffi_checksum_derive = { version = "0.21.0", path = "../uniffi_checksum_derive" } -diff --git a/uniffi_meta/src/lib.rs b/uniffi_meta/src/lib.rs -index 6cfa733e9..2555ae19c 100644 ---- a/uniffi_meta/src/lib.rs -+++ b/uniffi_meta/src/lib.rs -@@ -6,10 +6,79 @@ use std::{ - collections::hash_map::DefaultHasher, - hash::{Hash, Hasher}, - }; -+pub use uniffi_checksum_derive::Checksum; - - use serde::{Deserialize, Serialize}; - --#[derive(Clone, Debug, Hash, Deserialize, Serialize)] -+pub trait Checksum { -+ fn checksum<H: Hasher>(&self, state: &mut H); -+} -+ -+impl Checksum for bool { -+ fn checksum<H: Hasher>(&self, state: &mut H) { -+ Hash::hash(self, state); -+ } -+} -+ -+impl Checksum for u64 { -+ fn checksum<H: Hasher>(&self, state: &mut H) { -+ state.write(&self.to_le_bytes()); -+ } -+} -+ -+impl Checksum for i64 { -+ fn checksum<H: Hasher>(&self, state: &mut H) { -+ state.write(&self.to_le_bytes()); -+ } -+} -+ -+impl<T: Checksum> Checksum for Box<T> { -+ fn checksum<H: Hasher>(&self, state: &mut H) { -+ (**self).checksum(state) -+ } -+} -+ -+impl<T: Checksum> Checksum for [T] { -+ fn checksum<H: Hasher>(&self, state: &mut H) { -+ state.write(&(self.len() as u64).to_le_bytes()); -+ for item in self { -+ Checksum::checksum(item, state); -+ } -+ } -+} -+ -+impl<T: Checksum> Checksum for Vec<T> { -+ fn checksum<H: Hasher>(&self, state: &mut H) { -+ Checksum::checksum(&**self, state); -+ } -+} -+ -+impl<T: Checksum> Checksum for Option<T> { -+ fn checksum<H: Hasher>(&self, state: &mut H) { -+ match self { -+ None => state.write(&0u64.to_le_bytes()), -+ Some(value) => { -+ state.write(&1u64.to_le_bytes()); -+ Checksum::checksum(value, state) -+ } -+ } -+ } -+} -+ -+impl Checksum for str { -+ fn checksum<H: Hasher>(&self, state: &mut H) { -+ state.write(self.as_bytes()); -+ state.write_u8(0xff); -+ } -+} -+ -+impl Checksum for String { -+ fn checksum<H: Hasher>(&self, state: &mut H) { -+ (**self).checksum(state) -+ } -+} -+ -+#[derive(Clone, Debug, Checksum, Deserialize, Serialize)] - pub struct FnMetadata { - pub module_path: Vec<String>, - pub name: String, -@@ -23,7 +92,7 @@ impl FnMetadata { - } - } - --#[derive(Clone, Debug, Hash, Deserialize, Serialize)] -+#[derive(Clone, Debug, Checksum, Deserialize, Serialize)] - pub struct MethodMetadata { - pub module_path: Vec<String>, - pub self_name: String, -@@ -39,14 +108,14 @@ impl MethodMetadata { - } - } - --#[derive(Clone, Debug, Hash, Deserialize, Serialize)] -+#[derive(Clone, Debug, Checksum, Deserialize, Serialize)] - pub struct FnParamMetadata { - pub name: String, - #[serde(rename = "type")] - pub ty: Type, - } - --#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Deserialize, Serialize)] -+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Checksum, Deserialize, Serialize)] - pub enum Type { - U8, - U16, -@@ -78,21 +147,21 @@ pub enum Type { - }, - } - --#[derive(Clone, Debug, Hash, Deserialize, Serialize)] -+#[derive(Clone, Debug, Checksum, Deserialize, Serialize)] - pub struct RecordMetadata { - pub module_path: Vec<String>, - pub name: String, - pub fields: Vec<FieldMetadata>, - } - --#[derive(Clone, Debug, Hash, Deserialize, Serialize)] -+#[derive(Clone, Debug, Checksum, Deserialize, Serialize)] - pub struct FieldMetadata { - pub name: String, - #[serde(rename = "type")] - pub ty: Type, - } - --#[derive(Clone, Debug, Hash, Deserialize, Serialize)] -+#[derive(Clone, Debug, Checksum, Deserialize, Serialize)] - pub struct ObjectMetadata { - pub module_path: Vec<String>, - pub name: String, -@@ -112,9 +181,9 @@ impl ObjectMetadata { - /// - /// To be used as a checksum of FFI symbols, as a safeguard against different UniFFI versions being - /// used for scaffolding and bindings generation. --pub fn checksum<T: Hash>(val: &T) -> u16 { -+pub fn checksum<T: Checksum>(val: &T) -> u16 { - let mut hasher = DefaultHasher::new(); -- val.hash(&mut hasher); -+ val.checksum(&mut hasher); - (hasher.finish() & 0x000000000000FFFF) as u16 - } - -@@ -124,7 +193,7 @@ pub fn fn_ffi_symbol_name(mod_path: &[String], name: &str, checksum: u16) -> Str - } - - /// Enum covering all the possible metadata types --#[derive(Clone, Debug, Hash, Deserialize, Serialize)] -+#[derive(Clone, Debug, Checksum, Deserialize, Serialize)] - pub enum Metadata { - Func(FnMetadata), - Method(MethodMetadata), |