Add --generate-link-to-definition in the docs of all our published crate

This is a nice nightly rustdoc feature and we should make use of it

.github/workflows/build_docs.yaml

@@ -23,7 +23,7 @@ jobs:
             # Allow deprecated warning because we are using nightly and some things might be deprecated in nightly
             # for which the stable alternative is not yet available.
             RUSTFLAGS: -D warnings -W deprecated
-            RUSTDOCFLAGS: --html-in-header=/home/runner/work/slint/slint/docs/astro/src/utils/slint-docs-highlight.html -D warnings -W deprecated --cfg docsrs
+            RUSTDOCFLAGS: --html-in-header=/home/runner/work/slint/slint/docs/astro/src/utils/slint-docs-highlight.html -D warnings -W deprecated --cfg docsrs -Zunstable-options --generate-link-to-definition
             SLINT_NO_QT: 1
             CARGO_INCREMENTAL: false
             RELEASE_INPUT: ${{ inputs.release }}

api/rs/build/Cargo.toml

@@ -30,3 +30,4 @@ derive_more = { workspace = true, features = ["std", "error"] }
 
 [package.metadata.docs.rs]
 all-features = true
+rustdoc-args = ["--generate-link-to-definition"]

api/rs/macros/Cargo.toml

@@ -27,3 +27,6 @@ i-slint-compiler = { workspace = true, features = ["default", "proc_macro_span",
 proc-macro2 = "1.0.17"
 quote = "1.0"
 spin_on = { workspace = true }
+
+[package.metadata.docs.rs]
+rustdoc-args = ["--generate-link-to-definition"]

api/rs/slint/Cargo.toml

@@ -259,3 +259,4 @@ features = [
   "raw-window-handle-06",
   "unstable-wgpu-24",
 ]
+rustdoc-args = ["--generate-link-to-definition"]

api/rs/slint/android.rs

@@ -113,9 +113,14 @@ use crate::platform::SetPlatformError;
 ///
 /// See also [`init_with_event_listener`]
 pub fn init(app: android_activity::AndroidApp) -> Result<(), SetPlatformError> {
-    crate::platform::set_platform(Box::new(i_slint_backend_android_activity::AndroidPlatform::new(
-        app,
-    )))
+    #[cfg(not(target_os = "android"))]
+    unreachable!();
+    #[cfg(target_os = "android")]
+    {
+        crate::platform::set_platform(Box::new(
+            i_slint_backend_android_activity::AndroidPlatform::new(app),
+        ))
+    }
 }
 
 /// Similar to [`init()`], which allow to listen to android-activity's event
@@ -145,7 +150,14 @@ pub fn init_with_event_listener(
     app: android_activity::AndroidApp,
     listener: impl Fn(&android_activity::PollEvent<'_>) + 'static,
 ) -> Result<(), SetPlatformError> {
-    crate::platform::set_platform(Box::new(
-        i_slint_backend_android_activity::AndroidPlatform::new_with_event_listener(app, listener),
-    ))
+    #[cfg(not(target_os = "android"))]
+    unreachable!();
+    #[cfg(target_os = "android")]
+    {
+        crate::platform::set_platform(Box::new(
+            i_slint_backend_android_activity::AndroidPlatform::new_with_event_listener(
+                app, listener,
+            ),
+        ))
+    }
 }

internal/backends/android-activity/Cargo.toml

@@ -39,3 +39,4 @@ android-build = "0.1.2"
 [package.metadata.docs.rs]
 targets = ["aarch64-linux-android", "armv7-linux-androideabi", "i686-linux-android", "x86_64-linux-android"]
 features = ["native-activity", "aa-06"]
+rustdoc-args = ["--generate-link-to-definition"]

internal/backends/linuxkms/Cargo.toml

@@ -45,3 +45,6 @@ glutin = { workspace = true, optional = true, default-features = false, features
 raw-window-handle = { version = "0.6.2", optional = true }
 bytemuck = { workspace = true, optional = true, features = ["derive"] }
 memmap2 = { version = "0.9.4", optional = true }
+
+[package.metadata.docs.rs]
+rustdoc-args = ["--generate-link-to-definition"]

internal/backends/qt/Cargo.toml

@@ -37,3 +37,6 @@ qttypes = { version = "0.2.7", default-features = false, optional = true }
 
 [build-dependencies]
 cpp_build = { version = "0.5.5", optional = true }
+
+[package.metadata.docs.rs]
+rustdoc-args = ["--generate-link-to-definition"]

internal/backends/selector/Cargo.toml

@@ -82,3 +82,6 @@ i-slint-common = { workspace = true }
 
 [dev-dependencies]
 slint = { path = "../../../api/rs/slint", default-features = false, features = ["std", "compat-1-2", "backend-winit", "renderer-software", "unstable-winit-030"] }
+
+[package.metadata.docs.rs]
+rustdoc-args = ["--generate-link-to-definition"]

internal/backends/testing/Cargo.toml

@@ -40,3 +40,6 @@ pb-rs = { version = "0.10.0", optional = true, default-features = false }
 slint = { path = "../../../api/rs/slint", default-features = false, features = ["std", "compat-1-2"] }
 i-slint-core-macros = { path = "../../core-macros" }
 i-slint-common = { path = "../../common" }
+
+[package.metadata.docs.rs]
+rustdoc-args = ["--generate-link-to-definition"]

internal/backends/winit/Cargo.toml

@@ -125,3 +125,4 @@ slint = { path = "../../../api/rs/slint", default-features = false, features = [
 
 [package.metadata.docs.rs]
 features = ["wayland", "renderer-software", "raw-window-handle-06"]
+rustdoc-args = ["--generate-link-to-definition"]

internal/common/Cargo.toml

@@ -34,3 +34,6 @@ fontdb = { workspace = true, optional = true, features = ["std", "fs", "fontconf
 
 [target.'cfg(all(not(target_arch = "wasm32"), not(target_os = "nto")))'.dependencies]
 fontdb = { workspace = true, optional = true, features = ["memmap"] }
+
+[package.metadata.docs.rs]
+rustdoc-args = ["--generate-link-to-definition"]

internal/compiler/Cargo.toml

@@ -75,3 +75,6 @@ i-slint-parser-test-macro = { path = "./parser-test-macro" }
 regex = "1.3.7"
 spin_on = { workspace = true }
 rayon = { workspace = true }
+
+[package.metadata.docs.rs]
+rustdoc-args = ["--generate-link-to-definition"]

internal/core-macros/Cargo.toml

@@ -23,3 +23,6 @@ path = "lib.rs"
 quote = "1.0"
 syn = { version = "2.0", features = ["full", "visit-mut"] }
 serde_json = { workspace = true }
+
+[package.metadata.docs.rs]
+rustdoc-args = ["--generate-link-to-definition"]

internal/core/Cargo.toml

@@ -150,3 +150,6 @@ unexpected_cfgs = { level = "warn", check-cfg = ["cfg(slint_debug_property)", "c
 # Coord is an alias for f32 in most architectures, but not always, so the cast
 # to f32 *is* necessary.
 unnecessary_cast = { level = "allow" }
+
+[package.metadata.docs.rs]
+rustdoc-args = ["--generate-link-to-definition"]

internal/interpreter/Cargo.toml

@@ -166,3 +166,4 @@ spin_on = { workspace = true }
 
 [package.metadata.docs.rs]
 features = ["display-diagnostics", "document-features", "raw-window-handle-06"]
+rustdoc-args = ["--generate-link-to-definition"]

internal/renderers/femtovg/Cargo.toml

@@ -56,3 +56,6 @@ core-text = { version = "21.0.0" }
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 web-sys = { workspace = true, features = ["console", "WebGlContextAttributes", "CanvasRenderingContext2d", "HtmlInputElement", "HtmlCanvasElement", "Window", "Document"] }
 wasm-bindgen = { version = "0.2" }
+
+[package.metadata.docs.rs]
+rustdoc-args = ["--generate-link-to-definition"]

internal/renderers/skia/Cargo.toml

@@ -76,3 +76,6 @@ skia-safe = { version = "0.86.0", features = ["gl"] }
 
 [build-dependencies]
 cfg_aliases = { workspace = true }
+
+[package.metadata.docs.rs]
+rustdoc-args = ["--generate-link-to-definition"]