Auto merge of #23499 - est31:unused_code_removal_3, r=jdm

Remove unused code (3/N)

<!-- Please describe your changes on the following line: -->

Third PR in a series of PRs to remove unused/dead code from servo, powered by an (upcoming) tool of mine. Please take a look and tell me if you want to keep something.

* First PR: #23477
* Second PR: #23498

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [ ] These changes fix #___ (GitHub issue number if applicable)

<!-- Either: -->
- [ ] There are tests for these changes OR
- [x] These changes do not require tests because they only remove dead code

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components/script/dom/attr.rs

@@ -252,10 +252,8 @@ impl Attr {
 pub trait AttrHelpersForLayout {
     unsafe fn value_forever(&self) -> &'static AttrValue;
     unsafe fn value_ref_forever(&self) -> &'static str;
-    unsafe fn value_atom_forever(&self) -> Option<Atom>;
     unsafe fn value_tokens_forever(&self) -> Option<&'static [Atom]>;
     unsafe fn local_name_atom_forever(&self) -> LocalName;
-    unsafe fn value_for_layout(&self) -> &AttrValue;
 }
 
 #[allow(unsafe_code)]
@@ -271,15 +269,6 @@ impl AttrHelpersForLayout for LayoutDom<Attr> {
         &**self.value_forever()
     }
 
-    #[inline]
-    unsafe fn value_atom_forever(&self) -> Option<Atom> {
-        let value = (*self.unsafe_get()).value.borrow_for_layout();
-        match *value {
-            AttrValue::Atom(ref val) => Some(val.clone()),
-            _ => None,
-        }
-    }
-
     #[inline]
     unsafe fn value_tokens_forever(&self) -> Option<&'static [Atom]> {
         // This transmute is used to cheat the lifetime restriction.
@@ -293,9 +282,4 @@ impl AttrHelpersForLayout for LayoutDom<Attr> {
     unsafe fn local_name_atom_forever(&self) -> LocalName {
         (*self.unsafe_get()).identifier.local_name.clone()
     }
-
-    #[inline]
-    unsafe fn value_for_layout(&self) -> &AttrValue {
-        (*self.unsafe_get()).value.borrow_for_layout()
-    }
 }

components/script/dom/bindings/mod.rs

@@ -168,9 +168,6 @@ pub mod codegen {
     pub mod InterfaceObjectMap {
         include!(concat!(env!("OUT_DIR"), "/InterfaceObjectMap.rs"));
     }
-    pub mod InterfaceTypes {
-        include!(concat!(env!("OUT_DIR"), "/InterfaceTypes.rs"));
-    }
     #[allow(dead_code, unused_imports)]
     pub mod InheritTypes {
         include!(concat!(env!("OUT_DIR"), "/InheritTypes.rs"));

components/script/dom/bindings/root.rs

@@ -671,14 +671,6 @@ impl<T: DomObject> LayoutDom<T> {
         debug_assert!(thread_state::get().is_layout());
         self.ptr.as_ptr()
     }
-
-    /// Returns a reference to the interior of this JS object. This method is
-    /// safe to call because it originates from the layout thread, and it cannot
-    /// mutate DOM nodes.
-    pub fn get_for_script(&self) -> &T {
-        debug_assert!(thread_state::get().is_script());
-        unsafe { &*self.ptr.as_ptr() }
-    }
 }
 
 /// Helper trait for safer manipulations of `Option<Heap<T>>` values.

components/script/dom/bindings/str.rs

@@ -17,7 +17,7 @@ use std::marker::PhantomData;
 use std::ops;
 use std::ops::{Deref, DerefMut};
 use std::str;
-use std::str::{Bytes, FromStr};
+use std::str::FromStr;
 
 /// Encapsulates the IDL `ByteString` type.
 #[derive(Clone, Debug, Default, Eq, JSTraceable, MallocSizeOf, PartialEq)]
@@ -40,11 +40,6 @@ impl ByteString {
         self.0.len()
     }
 
-    /// Compare `self` to `other`, matching A–Z and a–z as equal.
-    pub fn eq_ignore_case(&self, other: &ByteString) -> bool {
-        self.0.eq_ignore_ascii_case(&other.0)
-    }
-
     /// Returns `self` with A–Z replaced by a–z.
     pub fn to_lower(&self) -> ByteString {
         ByteString::new(self.0.to_ascii_lowercase())
@@ -219,11 +214,6 @@ impl DOMString {
         self.0.truncate(new_len);
     }
 
-    /// An iterator over the bytes of this `DOMString`.
-    pub fn bytes(&self) -> Bytes {
-        self.0.bytes()
-    }
-
     /// Removes newline characters according to <https://infra.spec.whatwg.org/#strip-newlines>.
     pub fn strip_newlines(&mut self) {
         self.0.retain(|c| c != '\r' && c != '\n');

components/script/dom/dissimilaroriginlocation.rs

@@ -12,7 +12,6 @@ use crate::dom::bindings::str::DOMString;
 use crate::dom::bindings::str::USVString;
 use crate::dom::dissimilaroriginwindow::DissimilarOriginWindow;
 use dom_struct::dom_struct;
-use servo_url::MutableOrigin;
 
 /// Represents a dissimilar-origin `Location` that exists in another script thread.
 ///
@@ -46,11 +45,6 @@ impl DissimilarOriginLocation {
             DissimilarOriginLocationBinding::Wrap,
         )
     }
-
-    #[allow(dead_code)]
-    pub fn origin(&self) -> &MutableOrigin {
-        self.window.origin()
-    }
 }
 
 impl DissimilarOriginLocationMethods for DissimilarOriginLocation {

components/script/dom/dissimilaroriginwindow.rs

@@ -5,7 +5,6 @@
 use crate::dom::bindings::codegen::Bindings::DissimilarOriginWindowBinding;
 use crate::dom::bindings::codegen::Bindings::DissimilarOriginWindowBinding::DissimilarOriginWindowMethods;
 use crate::dom::bindings::error::{Error, ErrorResult};
-use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::root::{Dom, DomRoot, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
 use crate::dom::bindings::structuredclone::StructuredCloneData;
@@ -20,7 +19,6 @@ use js::rust::HandleValue;
 use msg::constellation_msg::PipelineId;
 use script_traits::ScriptMsg;
 use servo_url::ImmutableOrigin;
-use servo_url::MutableOrigin;
 use servo_url::ServoUrl;
 
 /// Represents a dissimilar-origin `Window` that exists in another script thread.
@@ -71,10 +69,6 @@ impl DissimilarOriginWindow {
         unsafe { DissimilarOriginWindowBinding::Wrap(cx, win) }
     }
 
-    pub fn origin(&self) -> &MutableOrigin {
-        self.upcast::<GlobalScope>().origin()
-    }
-
     pub fn window_proxy(&self) -> DomRoot<WindowProxy> {
         DomRoot::from_ref(&*self.window_proxy)
     }

components/script/dom/document.rs

@@ -473,10 +473,6 @@ impl Document {
         self.https_state.set(https_state);
     }
 
-    pub fn is_completely_loaded(&self) -> bool {
-        self.completely_loaded.get()
-    }
-
     pub fn is_fully_active(&self) -> bool {
         self.activity.get() == DocumentActivity::FullyActive
     }

components/script/dom/element.rs

@@ -600,8 +600,6 @@ pub trait LayoutElementHelpers {
     fn local_name(&self) -> &LocalName;
     fn namespace(&self) -> &Namespace;
     fn get_lang_for_layout(&self) -> String;
-    fn get_checked_state_for_layout(&self) -> bool;
-    fn get_indeterminate_state_for_layout(&self) -> bool;
     fn get_state_for_layout(&self) -> ElementState;
     fn insert_selector_flags(&self, flags: ElementSelectorFlags);
     fn has_selector_flags(&self, flags: ElementSelectorFlags) -> bool;
@@ -1029,26 +1027,6 @@ impl LayoutElementHelpers for LayoutDom<Element> {
         }
     }
 
-    #[inline]
-    #[allow(unsafe_code)]
-    fn get_checked_state_for_layout(&self) -> bool {
-        // TODO option and menuitem can also have a checked state.
-        match self.downcast::<HTMLInputElement>() {
-            Some(input) => unsafe { input.checked_state_for_layout() },
-            None => false,
-        }
-    }
-
-    #[inline]
-    #[allow(unsafe_code)]
-    fn get_indeterminate_state_for_layout(&self) -> bool {
-        // TODO progress elements can also be matched with :indeterminate
-        match self.downcast::<HTMLInputElement>() {
-            Some(input) => unsafe { input.indeterminate_state_for_layout() },
-            None => false,
-        }
-    }
-
     #[inline]
     #[allow(unsafe_code)]
     fn get_state_for_layout(&self) -> ElementState {
@@ -3293,10 +3271,6 @@ impl Element {
         self.state.set(state);
     }
 
-    pub fn active_state(&self) -> bool {
-        self.state.get().contains(ElementState::IN_ACTIVE_STATE)
-    }
-
     /// <https://html.spec.whatwg.org/multipage/#concept-selector-active>
     pub fn set_active_state(&self, value: bool) {
         self.set_state(ElementState::IN_ACTIVE_STATE, value);
@@ -3360,18 +3334,10 @@ impl Element {
         }
     }
 
-    pub fn target_state(&self) -> bool {
-        self.state.get().contains(ElementState::IN_TARGET_STATE)
-    }
-
     pub fn set_target_state(&self, value: bool) {
         self.set_state(ElementState::IN_TARGET_STATE, value)
     }
 
-    pub fn fullscreen_state(&self) -> bool {
-        self.state.get().contains(ElementState::IN_FULLSCREEN_STATE)
-    }
-
     pub fn set_fullscreen_state(&self, value: bool) {
         self.set_state(ElementState::IN_FULLSCREEN_STATE, value)
     }