Improve dependency gating on objdiff-core (#126)

* Reduce dependencies for no features

* Add missing deps to every feature

* Add missing `dep:`s

* Gate even more deps behind features

Removes dependency on tsify-next / wasm-bindgen unless
compiling with the wasm feature by using `#[cfg_attr]`

* Fix wasm

---------

Co-authored-by: Luke Street <luke@street.dev>

objdiff-core/Cargo.toml

@@ -17,15 +17,15 @@ crate-type = ["cdylib", "rlib"]
 
 [features]
 all = ["config", "dwarf", "mips", "ppc", "x86", "arm", "bindings"]
-any-arch = ["bimap"] # Implicit, used to check if any arch is enabled
-config = ["bimap", "globset", "semver", "serde_json", "serde_yaml"]
-dwarf = ["gimli"]
-mips = ["any-arch", "rabbitizer"]
-ppc = ["any-arch", "cwdemangle", "cwextab", "ppc750cl"]
-x86 = ["any-arch", "cpp_demangle", "iced-x86", "msvc-demangler"]
-arm = ["any-arch", "cpp_demangle", "unarm", "arm-attr"]
-bindings = ["serde_json", "prost", "pbjson"]
-wasm = ["bindings", "console_error_panic_hook", "console_log"]
+any-arch = ["config", "dep:bimap", "dep:strum", "dep:similar", "dep:flagset", "dep:log", "dep:memmap2", "dep:byteorder", "dep:num-traits"] # Implicit, used to check if any arch is enabled
+config = ["dep:bimap", "dep:globset", "dep:semver", "dep:serde_json", "dep:serde_yaml", "dep:serde", "dep:filetime"]
+dwarf = ["dep:gimli"]
+mips = ["any-arch", "dep:rabbitizer"]
+ppc = ["any-arch", "dep:cwdemangle", "dep:cwextab", "dep:ppc750cl"]
+x86 = ["any-arch", "dep:cpp_demangle", "dep:iced-x86", "dep:msvc-demangler"]
+arm = ["any-arch", "dep:cpp_demangle", "dep:unarm", "dep:arm-attr"]
+bindings = ["dep:serde_json", "dep:prost", "dep:pbjson", "dep:serde", "dep:prost-build", "dep:pbjson-build"]
+wasm = ["bindings", "any-arch", "dep:console_error_panic_hook", "dep:console_log", "dep:wasm-bindgen", "dep:tsify-next", "dep:log"]
 
 [package.metadata.docs.rs]
 features = ["all"]
@@ -33,20 +33,20 @@ features = ["all"]
 [dependencies]
 anyhow = "1.0"
 bimap = { version = "0.6", features = ["serde"], optional = true }
-byteorder = "1.5"
-filetime = "0.2"
-flagset = "0.4"
-log = "0.4"
-memmap2 = "0.9"
-num-traits = "0.2"
+byteorder = { version = "1.5", optional = true }
+filetime = { version = "0.2", optional = true }
+flagset = { version = "0.4", optional = true }
+log = { version = "0.4", optional = true }
+memmap2 = { version = "0.9", optional = true }
+num-traits = { version = "0.2", optional = true }
 object = { version = "0.36", features = ["read_core", "std", "elf", "pe"], default-features = false }
 pbjson = { version = "0.7", optional = true }
 prost = { version = "0.13", optional = true }
-serde = { version = "1.0", features = ["derive"] }
-similar = { version = "2.6", default-features = false }
-strum = { version = "0.26", features = ["derive"] }
-wasm-bindgen = "0.2"
-tsify-next = { version = "0.5", default-features = false, features = ["js"] }
+serde = { version = "1.0", features = ["derive"], optional = true }
+similar = { version = "2.6", default-features = false, optional = true }
+strum = { version = "0.26", features = ["derive"], optional = true }
+wasm-bindgen = { version = "0.2", optional = true }
+tsify-next = { version = "0.5", default-features = false, features = ["js"], optional = true }
 console_log = { version = "1.0", optional = true }
 console_error_panic_hook = { version = "0.1", optional = true }
 
@@ -77,5 +77,5 @@ unarm = { version = "1.6", optional = true }
 arm-attr = { version = "0.1", optional = true }
 
 [build-dependencies]
-prost-build = "0.13"
-pbjson-build = "0.7"
+prost-build = { version = "0.13", optional = true }
+pbjson-build = { version = "0.7", optional = true }

objdiff-core/build.rs

@@ -1,6 +1,11 @@
-use std::path::{Path, PathBuf};
-
 fn main() {
+    #[cfg(feature = "bindings")]
+    compile_protos();
+}
+
+#[cfg(feature = "bindings")]
+fn compile_protos() {
+    use std::path::{Path, PathBuf};
     let root = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("protos");
     let descriptor_path = root.join("proto_descriptor.bin");
     println!("cargo:rerun-if-changed={}", descriptor_path.display());

objdiff-core/src/diff/mod.rs

@@ -29,8 +29,8 @@ pub mod display;
     serde::Serialize,
     strum::VariantArray,
     strum::EnumMessage,
-    tsify_next::Tsify,
 )]
+#[cfg_attr(feature = "wasm", derive(tsify_next::Tsify))]
 pub enum X86Formatter {
     #[default]
     #[strum(message = "Intel (default)")]
@@ -54,8 +54,8 @@ pub enum X86Formatter {
     serde::Serialize,
     strum::VariantArray,
     strum::EnumMessage,
-    tsify_next::Tsify,
 )]
+#[cfg_attr(feature = "wasm", derive(tsify_next::Tsify))]
 pub enum MipsAbi {
     #[default]
     #[strum(message = "Auto (default)")]
@@ -79,8 +79,8 @@ pub enum MipsAbi {
     serde::Serialize,
     strum::VariantArray,
     strum::EnumMessage,
-    tsify_next::Tsify,
 )]
+#[cfg_attr(feature = "wasm", derive(tsify_next::Tsify))]
 pub enum MipsInstrCategory {
     #[default]
     #[strum(message = "Auto (default)")]
@@ -108,8 +108,8 @@ pub enum MipsInstrCategory {
     serde::Serialize,
     strum::VariantArray,
     strum::EnumMessage,
-    tsify_next::Tsify,
 )]
+#[cfg_attr(feature = "wasm", derive(tsify_next::Tsify))]
 pub enum ArmArchVersion {
     #[default]
     #[strum(message = "Auto (default)")]
@@ -133,8 +133,8 @@ pub enum ArmArchVersion {
     serde::Serialize,
     strum::VariantArray,
     strum::EnumMessage,
-    tsify_next::Tsify,
 )]
+#[cfg_attr(feature = "wasm", derive(tsify_next::Tsify))]
 pub enum ArmR9Usage {
     #[default]
     #[strum(
@@ -154,8 +154,9 @@ pub enum ArmR9Usage {
 #[inline]
 const fn default_true() -> bool { true }
 
-#[derive(Debug, Clone, Eq, PartialEq, serde::Deserialize, serde::Serialize, tsify_next::Tsify)]
-#[tsify(from_wasm_abi)]
+#[derive(Debug, Clone, Eq, PartialEq, serde::Deserialize, serde::Serialize)]
+#[cfg_attr(feature = "wasm", derive(tsify_next::Tsify))]
+#[cfg_attr(feature = "wasm", tsify(from_wasm_abi))]
 #[serde(default)]
 pub struct DiffObjConfig {
     pub relax_reloc_diffs: bool,

objdiff-core/src/lib.rs

@@ -8,4 +8,5 @@ pub mod config;
 pub mod diff;
 #[cfg(feature = "any-arch")]
 pub mod obj;
+#[cfg(feature = "any-arch")]
 pub mod util;

objdiff-core/src/obj/read.rs

@@ -64,6 +64,7 @@ fn to_obj_symbol(
     if obj_file.format() == BinaryFormat::Elf && symbol.scope() == SymbolScope::Linkage {
         flags = ObjSymbolFlagSet(flags.0 | ObjSymbolFlags::Hidden);
     }
+    #[cfg(feature = "ppc")]
     if arch
         .ppc()
         .and_then(|a| a.extab.as_ref())