feat(no_std): make ratatui-macros no-std (#1865)

.github/workflows/ci.yml

@@ -144,9 +144,11 @@ jobs:
       # This makes it easier to debug the exact versions of the dependencies
       - run: cargo tree --target x86_64-unknown-none -p ratatui-core
       - run: cargo tree --target x86_64-unknown-none -p ratatui-widgets
+      - run: cargo tree --target x86_64-unknown-none -p ratatui-macros
       - run: cargo tree --target x86_64-unknown-none -p ratatui --no-default-features
       - run: cargo build --target x86_64-unknown-none -p ratatui-core
       - run: cargo build --target x86_64-unknown-none -p ratatui-widgets
+      - run: cargo build --target x86_64-unknown-none -p ratatui-macros
       - run: cargo build --target x86_64-unknown-none -p ratatui --no-default-features
 
   # Check if README.md is up-to-date with the crate's documentation.

ratatui-macros/src/lib.rs

@@ -1,3 +1,4 @@
+#![no_std]
 //! `ratatui-macros` is a Rust crate that provides easy-to-use macros for simplifying boilerplate
 //! associated with creating UI using [Ratatui].
 //!
@@ -197,6 +198,12 @@
 //! [CI Status]: https://github.com/ratatui/ratatui/actions
 //! [Ratatui]: https://github.com/ratatui/ratatui
 //! [Layout concepts]: https://ratatui.rs/concepts/layout
+
+extern crate alloc;
+
+#[doc(hidden)]
+pub use alloc::{format, vec};
+
 mod layout;
 mod line;
 mod row;

ratatui-macros/src/line.rs

@@ -33,16 +33,17 @@
 /// [`span!`]: crate::span
 /// [`Line`]: ratatui_core::text::Line
 /// [`Span`]: ratatui_core::text::Span
+/// [`vec!`]: alloc::vec!
 #[macro_export]
 macro_rules! line {
     () => {
         $crate::ratatui_core::text::Line::default()
     };
     ($span:expr; $n:expr) => {
-      $crate::ratatui_core::text::Line::from(vec![$span.into(); $n])
+      $crate::ratatui_core::text::Line::from($crate::vec![$span.into(); $n])
     };
     ($($span:expr),+ $(,)?) => {{
-        $crate::ratatui_core::text::Line::from(vec![
+        $crate::ratatui_core::text::Line::from($crate::vec![
         $(
             $span.into(),
         )+
@@ -52,6 +53,7 @@ macro_rules! line {
 
 #[cfg(test)]
 mod tests {
+    use alloc::vec;
     use ratatui_core::text::{Line, Span};
 
     #[test]

ratatui-macros/src/row.rs

@@ -46,16 +46,17 @@
 /// [`row!`]: crate::row
 /// [`Row`]: ratatui_widgets::table::Row
 /// [`Cell`]: ratatui_widgets::table::Cell
+/// [`vec!`]: alloc::vec!
 #[macro_export]
 macro_rules! row {
     () => {
         ::ratatui_widgets::table::Row::default()
     };
     ($cell:expr; $n:expr) => {
-        ::ratatui_widgets::table::Row::new(vec![::ratatui_widgets::table::Cell::from($cell); $n])
+        ::ratatui_widgets::table::Row::new($crate::vec![::ratatui_widgets::table::Cell::from($cell); $n])
     };
     ($($cell:expr),+ $(,)?) => {{
-        ::ratatui_widgets::table::Row::new(vec![
+        ::ratatui_widgets::table::Row::new($crate::vec![
         $(
             ::ratatui_widgets::table::Cell::from($cell),
         )+
@@ -65,7 +66,7 @@ macro_rules! row {
 
 #[cfg(test)]
 mod tests {
-
+    use alloc::vec;
     use ratatui_core::text::Text;
     use ratatui_widgets::table::{Cell, Row};
 

ratatui-macros/src/span.rs

@@ -91,28 +91,29 @@
 /// [`Color`]: ratatui_core::style::Color
 /// [`Span`]: ratatui_core::text::Span
 /// [`Style`]: ratatui_core::style::Style
+/// [`format!`]: alloc::format!
 #[macro_export]
 macro_rules! span {
     ($string:literal) => {
-        $crate::ratatui_core::text::Span::raw(format!($string))
+        $crate::ratatui_core::text::Span::raw($crate::format!($string))
     };
     ($string:literal, $($arg:tt)*) => {
-        $crate::ratatui_core::text::Span::raw(format!($string, $($arg)*))
+        $crate::ratatui_core::text::Span::raw($crate::format!($string, $($arg)*))
     };
     ($expr:expr) => {
-        $crate::ratatui_core::text::Span::raw(format!("{}", $expr))
+        $crate::ratatui_core::text::Span::raw($crate::format!("{}", $expr))
     };
     ($style:expr, $($arg:tt)*) => {
         compile_error!("first parameter must be a formatting specifier followed by a comma OR a `Style` followed by a semicolon")
     };
     ($style:expr; $string:literal) => {
-        $crate::ratatui_core::text::Span::styled(format!($string), $style)
+        $crate::ratatui_core::text::Span::styled($crate::format!($string), $style)
     };
     ($style:expr; $string:literal, $($arg:tt)*) => {
-        $crate::ratatui_core::text::Span::styled(format!($string, $($arg)*), $style)
+        $crate::ratatui_core::text::Span::styled($crate::format!($string, $($arg)*), $style)
     };
     ($style:expr; $expr:expr) => {
-        $crate::ratatui_core::text::Span::styled(format!("{}", $expr), $style)
+        $crate::ratatui_core::text::Span::styled($crate::format!("{}", $expr), $style)
     };
 }
 

ratatui-macros/src/text.rs

@@ -35,16 +35,17 @@
 /// [`Text`]: ratatui_core::text::Text
 /// [`Line`]: ratatui_core::text::Line
 /// [`Span`]: ratatui_core::text::Span
+/// [`vec!`]: alloc::vec!
 #[macro_export]
 macro_rules! text {
     () => {
         $crate::ratatui_core::text::Text::default()
     };
     ($line:expr; $n:expr) => {
-        $crate::ratatui_core::text::Text::from(vec![$line.into(); $n])
+        $crate::ratatui_core::text::Text::from($crate::vec![$line.into(); $n])
     };
     ($($line:expr),+ $(,)?) => {{
-        $crate::ratatui_core::text::Text::from(vec![
+        $crate::ratatui_core::text::Text::from($crate::vec![
         $(
             $line.into(),
         )+
@@ -54,6 +55,7 @@ macro_rules! text {
 
 #[cfg(test)]
 mod tests {
+    use alloc::vec;
     use ratatui_core::text::Text;
 
     #[test]