janitor: Fix warnings in nightly about redandant use

api/rs/slint/private_unstable_api.rs

@@ -7,7 +7,6 @@
 //! guaranteed
 #![doc(hidden)]
 
-use alloc::rc::Rc;
 use core::pin::Pin;
 use re_exports::*;
 

helper_crates/vtable/src/vrc.rs

@@ -6,7 +6,6 @@
 //! implementation of vtable::Vrc
 
 use super::*;
-use core::convert::TryInto;
 use portable_atomic::{AtomicU32, Ordering};
 
 /// This trait is implemented by the [`#[vtable]`](macro@vtable) macro.

internal/compiler/parser.rs

@@ -14,7 +14,7 @@ This module has different sub modules with the actual parser functions
 
 use crate::diagnostics::{BuildDiagnostics, SourceFile, SourceFileVersion, Spanned};
 pub use smol_str::SmolStr;
-use std::{convert::TryFrom, fmt::Display};
+use std::fmt::Display;
 
 mod document;
 mod element;

internal/core/accessibility.rs

@@ -3,6 +3,7 @@
 
 // cSpell: ignore descendents
 
+#[cfg(not(feature = "std"))]
 use alloc::vec::Vec;
 
 use crate::items::ItemRc;

internal/core/animations.rs

@@ -4,6 +4,7 @@
 #![warn(missing_docs)]
 //! The animation system
 
+#[cfg(not(feature = "std"))]
 use alloc::boxed::Box;
 use core::cell::Cell;
 #[cfg(not(feature = "std"))]

internal/core/api.rs

@@ -12,7 +12,9 @@ pub use crate::future::*;
 use crate::input::{KeyEventType, MouseEvent};
 use crate::item_tree::ItemTreeVTable;
 use crate::window::{WindowAdapter, WindowInner};
+#[cfg(not(feature = "std"))]
 use alloc::boxed::Box;
+#[cfg(not(feature = "std"))]
 use alloc::string::String;
 
 /// A position represented in the coordinate space of logical pixels. That is the space before applying

internal/core/callbacks.rs

@@ -10,6 +10,7 @@ but then it should also be renamed everywhere, including in the language grammar
 
 #![warn(missing_docs)]
 
+#[cfg(not(feature = "std"))]
 use alloc::boxed::Box;
 use core::cell::Cell;
 

internal/core/component_factory.rs

@@ -6,6 +6,7 @@
 //! This module defines a `ComponentFactory` and related code.
 use crate::api::ComponentHandle;
 use crate::item_tree::{ItemTreeRc, ItemTreeVTable, ItemTreeWeak};
+#[cfg(not(feature = "std"))]
 use alloc::boxed::Box;
 use alloc::rc::Rc;
 use core::fmt::Debug;

internal/core/context.rs

@@ -5,6 +5,7 @@ use crate::api::PlatformError;
 use crate::platform::{EventLoopProxy, Platform};
 #[cfg(all(not(feature = "std"), feature = "unsafe-single-threaded"))]
 use crate::thread_local;
+#[cfg(not(feature = "std"))]
 use alloc::boxed::Box;
 use alloc::rc::Rc;
 

internal/core/future.rs

@@ -8,8 +8,10 @@
 
 use crate::api::EventLoopError;
 use crate::SlintContext;
+#[cfg(not(feature = "std"))]
 use alloc::boxed::Box;
 use alloc::task::Wake;
+#[cfg(not(feature = "std"))]
 use alloc::vec::Vec;
 use core::future::Future;
 use core::ops::DerefMut;

internal/core/graphics.rs

@@ -14,6 +14,7 @@ extern crate alloc;
 use crate::lengths::LogicalLength;
 use crate::Coord;
 use crate::SharedString;
+#[cfg(not(feature = "std"))]
 use alloc::boxed::Box;
 
 pub use euclid;

internal/core/graphics/border_radius.rs

@@ -5,7 +5,6 @@
 This module contains border radius related types for the run-time library.
 */
 
-use core::cmp::{Eq, PartialEq};
 use core::fmt;
 use core::marker::PhantomData;
 use core::ops::{Add, AddAssign, Div, DivAssign, Mul, MulAssign, Neg, Sub, SubAssign};

internal/core/graphics/boxshadowcache.rs

@@ -7,7 +7,6 @@ This module contains a cache helper for caching box shadow textures.
 
 use std::{cell::RefCell, collections::BTreeMap};
 
-use super::euclid;
 use crate::items::ItemRc;
 use crate::lengths::RectLengths;
 use crate::{

internal/core/graphics/rendering_metrics_collector.rs

@@ -10,7 +10,9 @@ use crate::debug_log;
 use crate::timers::{Timer, TimerMode};
 use alloc::format;
 use alloc::rc::Rc;
+#[cfg(not(feature = "std"))]
 use alloc::string::String;
+#[cfg(not(feature = "std"))]
 use alloc::vec::Vec;
 use core::cell::RefCell;
 

internal/core/input.rs

@@ -15,6 +15,7 @@ use crate::timers::Timer;
 use crate::window::{WindowAdapter, WindowInner};
 use crate::{Coord, Property, SharedString};
 use alloc::rc::Rc;
+#[cfg(not(feature = "std"))]
 use alloc::vec::Vec;
 use const_field_offset::FieldOffsets;
 use core::cell::Cell;

internal/core/item_rendering.rs

@@ -8,15 +8,14 @@ use super::graphics::RenderingCache;
 use super::items::*;
 use crate::graphics::{CachedGraphicsData, Image, IntRect};
 use crate::item_tree::ItemTreeRc;
-use crate::item_tree::{
+use crate::item_tree::{ItemVisitor, ItemVisitorResult, ItemVisitorVTable, VisitChildrenResult};
-    ItemRc, ItemVisitor, ItemVisitorResult, ItemVisitorVTable, VisitChildrenResult,
-};
 use crate::lengths::{
     LogicalBorderRadius, LogicalLength, LogicalPoint, LogicalPx, LogicalRect, LogicalSize,
     LogicalVector,
 };
 use crate::properties::PropertyTracker;
 use crate::{Brush, Coord};
+#[cfg(not(feature = "std"))]
 use alloc::boxed::Box;
 use core::cell::{Cell, RefCell};
 use core::pin::Pin;

internal/core/items/component_container.rs

@@ -22,6 +22,7 @@ use crate::properties::{Property, PropertyTracker};
 #[cfg(feature = "rtti")]
 use crate::rtti::*;
 use crate::window::WindowAdapter;
+#[cfg(not(feature = "std"))]
 use alloc::boxed::Box;
 use alloc::rc::Rc;
 use const_field_offset::FieldOffsets;

internal/core/items/flickable.rs

@@ -23,6 +23,7 @@ use crate::lengths::{
 use crate::rtti::*;
 use crate::window::WindowAdapter;
 use crate::Property;
+#[cfg(not(feature = "std"))]
 use alloc::boxed::Box;
 use alloc::rc::Rc;
 use const_field_offset::FieldOffsets;

internal/core/items/text.rs

@@ -26,6 +26,7 @@ use crate::rtti::*;
 use crate::window::{InputMethodProperties, InputMethodRequest, WindowAdapter, WindowInner};
 use crate::{Callback, Coord, Property, SharedString, SharedVector};
 use alloc::rc::Rc;
+#[cfg(not(feature = "std"))]
 use alloc::string::String;
 use const_field_offset::FieldOffsets;
 use core::cell::Cell;

internal/core/platform.rs

@@ -16,8 +16,10 @@ pub use crate::software_renderer;
 use crate::unsafe_single_threaded::OnceCell;
 pub use crate::window::{LayoutConstraints, WindowAdapter, WindowProperties};
 use crate::SharedString;
+#[cfg(not(feature = "std"))]
 use alloc::boxed::Box;
 use alloc::rc::Rc;
+#[cfg(not(feature = "std"))]
 use alloc::string::String;
 #[cfg(feature = "std")]
 use once_cell::sync::OnceCell;

internal/core/properties.rs

@@ -16,6 +16,7 @@
 /// A singled linked list whose nodes are pinned
 mod single_linked_list_pin {
     #![allow(unsafe_code)]
+    #[cfg(not(feature = "std"))]
     use alloc::boxed::Box;
     use core::pin::Pin;
 
@@ -224,6 +225,7 @@ pub(crate) mod dependency_tracker {
 type DependencyListHead = dependency_tracker::DependencyListHead<*const BindingHolder>;
 type DependencyNode = dependency_tracker::DependencyNode<*const BindingHolder>;
 
+#[cfg(not(feature = "std"))]
 use alloc::boxed::Box;
 use alloc::rc::Rc;
 use core::cell::{Cell, RefCell, UnsafeCell};

internal/core/renderer.rs

@@ -1,6 +1,7 @@
 // Copyright © SixtyFPS GmbH <info@slint.dev>
 // SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-Royalty-free-1.1 OR LicenseRef-Slint-commercial
 
+#[cfg(not(feature = "std"))]
 use alloc::boxed::Box;
 use alloc::rc::Rc;
 use core::pin::Pin;

internal/core/rtti.rs

@@ -11,6 +11,7 @@
 pub type FieldOffset<T, U> = const_field_offset::FieldOffset<T, U, const_field_offset::AllowPin>;
 use crate::items::PropertyAnimation;
 use alloc::rc::Rc;
+#[cfg(not(feature = "std"))]
 use core::convert::{TryFrom, TryInto};
 use core::pin::Pin;
 

internal/core/sharedvector.rs

@@ -5,6 +5,7 @@
 #![allow(unsafe_code)]
 #![warn(missing_docs)]
 use core::fmt::Debug;
+#[cfg(not(feature = "std"))]
 use core::iter::FromIterator;
 use core::mem::MaybeUninit;
 use core::ops::Deref;

internal/core/software_renderer.rs

@@ -28,6 +28,7 @@ use crate::textlayout::{AbstractFont, FontMetrics, TextParagraphLayout};
 use crate::window::{WindowAdapter, WindowInner};
 use crate::{Brush, Color, Coord, ImageInner, StaticTextures};
 use alloc::rc::{Rc, Weak};
+#[cfg(not(feature = "std"))]
 use alloc::{vec, vec::Vec};
 use core::cell::{Cell, RefCell};
 use core::pin::Pin;

internal/core/software_renderer/fonts.rs

@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-Royalty-free-1.1 OR LicenseRef-Slint-commercial
 
 use alloc::rc::Rc;
+#[cfg(not(feature = "std"))]
 use alloc::vec::Vec;
 use core::cell::RefCell;
 

internal/core/string.rs

@@ -7,8 +7,10 @@
 #![warn(missing_docs)]
 
 use crate::SharedVector;
+#[cfg(not(feature = "std"))]
 use alloc::string::String;
 use core::fmt::{Debug, Display, Write};
+#[cfg(not(feature = "std"))]
 use core::iter::FromIterator;
 use core::ops::Deref;
 

internal/core/textlayout.rs

@@ -21,6 +21,7 @@
 //!         Emit current line as new line
 //!
 
+#[cfg(not(feature = "std"))]
 use alloc::vec::Vec;
 
 use euclid::num::{One, Zero};

internal/core/textlayout/shaping.rs

@@ -1,6 +1,7 @@
 // Copyright © SixtyFPS GmbH <info@slint.dev>
 // SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-Royalty-free-1.1 OR LicenseRef-Slint-commercial
 
+#[cfg(not(feature = "std"))]
 use alloc::vec::Vec;
 use core::ops::Range;
 

internal/core/timers.rs

@@ -10,7 +10,9 @@
 */
 
 #![warn(missing_docs)]
+#[cfg(not(feature = "std"))]
 use alloc::boxed::Box;
+#[cfg(not(feature = "std"))]
 use alloc::vec::Vec;
 use core::{
     cell::{Cell, RefCell},

internal/core/window.rs

@@ -22,6 +22,7 @@ use crate::lengths::{LogicalLength, LogicalPoint, LogicalRect, SizeLengths};
 use crate::properties::{Property, PropertyTracker};
 use crate::renderer::Renderer;
 use crate::{Callback, Coord, SharedString};
+#[cfg(not(feature = "std"))]
 use alloc::boxed::Box;
 use alloc::rc::{Rc, Weak};
 use core::cell::{Cell, RefCell};

internal/interpreter/api.rs

@@ -1,7 +1,6 @@
 // Copyright © SixtyFPS GmbH <info@slint.dev>
 // SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-Royalty-free-1.1 OR LicenseRef-Slint-commercial
 
-use core::convert::TryFrom;
 use i_slint_compiler::diagnostics::SourceFileVersion;
 use i_slint_compiler::langtype::Type as LangType;
 use i_slint_core::component_factory::ComponentFactory;
@@ -13,7 +12,6 @@ use i_slint_core::window::WindowInner;
 use i_slint_core::{PathData, SharedVector};
 use std::borrow::Cow;
 use std::collections::HashMap;
-use std::iter::FromIterator;
 use std::path::{Path, PathBuf};
 use std::rc::Rc;
 

internal/interpreter/dynamic_item_tree.rs

@@ -3,7 +3,6 @@
 
 use crate::{api::Value, dynamic_type, eval};
 
-use core::convert::TryInto;
 use core::ptr::NonNull;
 use dynamic_type::{Instance, InstanceBox};
 use i_slint_compiler::diagnostics::SourceFileVersion;

internal/interpreter/eval.rs

@@ -3,7 +3,6 @@
 
 use crate::api::{SetPropertyError, Struct, Value};
 use crate::dynamic_item_tree::InstanceRef;
-use core::convert::TryInto;
 use core::pin::Pin;
 use corelib::graphics::{GradientStop, LinearGradientBrush, PathElement, RadialGradientBrush};
 use corelib::items::{ItemRef, PropertyAnimation};

internal/interpreter/eval_layout.rs

@@ -14,7 +14,6 @@ use i_slint_core::layout::{self as core_layout};
 use i_slint_core::model::RepeatedItemTree;
 use i_slint_core::slice::Slice;
 use i_slint_core::window::WindowAdapter;
-use std::convert::TryInto;
 use std::rc::Rc;
 use std::str::FromStr;