third_party/rust_crates/vendor/codespan-reporting/src/term/config.rs - fuchsia - Git at Google

 use termcolor::{Color, ColorSpec};

 use crate::diagnostic::{LabelStyle, Severity};

 /// Configures how a diagnostic is rendered.
 #[derive(Clone, Debug)]
 pub struct Config {
     /// The display style to use when rendering diagnostics.
     /// Defaults to: [`DisplayStyle::Rich`].
     ///
     /// [`DisplayStyle::Rich`]: DisplayStyle::Rich
     pub display_style: DisplayStyle,
     /// Column width of tabs.
     /// Defaults to: `4`.
     pub tab_width: usize,
     /// Styles to use when rendering the diagnostic.
     pub styles: Styles,
     /// Characters to use when rendering the diagnostic.
     pub chars: Chars,
 }

 impl Default for Config {
     fn default() -> Config {
         Config {
             display_style: DisplayStyle::Rich,
             tab_width: 4,
             styles: Styles::default(),
             chars: Chars::default(),
         }
     }
 }

 /// The display style to use when rendering diagnostics.
 #[derive(Clone, Debug)]
 pub enum DisplayStyle {
     /// Output a richly formatted diagnostic, with source code previews.
     ///
     /// ```text
     /// error[E0001]: unexpected type in `+` application
     ///   ┌─ test:2:9
     ///   │
     /// 2 │ (+ test "")
     ///   │         ^^ expected `Int` but found `String`
     ///   │
     ///   = expected type `Int`
     ///        found type `String`
     ///
     /// error[E0002]: Bad config found
     ///
     /// ```
     Rich,
     /// Output a short diagnostic, with a line number, severity, and message.
     ///
     /// ```text
     /// test:2:9: error[E0001]: unexpected type in `+` application
     /// error[E0002]: Bad config found
     /// ```
     Short,
 }

 /// Styles to use when rendering the diagnostic.
 #[derive(Clone, Debug)]
 pub struct Styles {
     /// The style to use when rendering bug headers.
     /// Defaults to `fg:red bold intense`.
     pub header_bug: ColorSpec,
     /// The style to use when rendering error headers.
     /// Defaults to `fg:red bold intense`.
     pub header_error: ColorSpec,
     /// The style to use when rendering warning headers.
     /// Defaults to `fg:yellow bold intense`.
     pub header_warning: ColorSpec,
     /// The style to use when rendering note headers.
     /// Defaults to `fg:green bold intense`.
     pub header_note: ColorSpec,
     /// The style to use when rendering help headers.
     /// Defaults to `fg:cyan bold intense`.
     pub header_help: ColorSpec,
     /// The style to use when the main diagnostic message.
     /// Defaults to `bold intense`.
     pub header_message: ColorSpec,

     /// The style to use when rendering bug labels.
     /// Defaults to `fg:red`.
     pub primary_label_bug: ColorSpec,
     /// The style to use when rendering error labels.
     /// Defaults to `fg:red`.
     pub primary_label_error: ColorSpec,
     /// The style to use when rendering warning labels.
     /// Defaults to `fg:yellow`.
     pub primary_label_warning: ColorSpec,
     /// The style to use when rendering note labels.
     /// Defaults to `fg:green`.
     pub primary_label_note: ColorSpec,
     /// The style to use when rendering help labels.
     /// Defaults to `fg:cyan`.
     pub primary_label_help: ColorSpec,
     /// The style to use when rendering secondary labels.
     /// Defaults `fg:blue` (or `fg:cyan` on windows).
     pub secondary_label: ColorSpec,

     /// The style to use when rendering the line numbers.
     /// Defaults `fg:blue` (or `fg:cyan` on windows).
     pub line_number: ColorSpec,
     /// The style to use when rendering the source code borders.
     /// Defaults `fg:blue` (or `fg:cyan` on windows).
     pub source_border: ColorSpec,
     /// The style to use when rendering the note bullets.
     /// Defaults `fg:blue` (or `fg:cyan` on windows).
     pub note_bullet: ColorSpec,
 }

 impl Styles {
     /// The style used to mark a header at a given severity.
     pub fn header(&self, severity: Severity) -> &ColorSpec {
         match severity {
             Severity::Bug => &self.header_bug,
             Severity::Error => &self.header_error,
             Severity::Warning => &self.header_warning,
             Severity::Note => &self.header_note,
             Severity::Help => &self.header_help,
         }
     }

     /// The style used to mark a primary or secondary label at a given severity.
     pub fn label(&self, severity: Severity, label_style: LabelStyle) -> &ColorSpec {
         match (label_style, severity) {
             (LabelStyle::Primary, Severity::Bug) => &self.primary_label_bug,
             (LabelStyle::Primary, Severity::Error) => &self.primary_label_error,
             (LabelStyle::Primary, Severity::Warning) => &self.primary_label_warning,
             (LabelStyle::Primary, Severity::Note) => &self.primary_label_note,
             (LabelStyle::Primary, Severity::Help) => &self.primary_label_help,
             (LabelStyle::Secondary, _) => &self.secondary_label,
         }
     }

     #[doc(hidden)]
     pub fn with_blue(blue: Color) -> Styles {
         let header = ColorSpec::new().set_bold(true).set_intense(true).clone();

         Styles {
             header_bug: header.clone().set_fg(Some(Color::Red)).clone(),
             header_error: header.clone().set_fg(Some(Color::Red)).clone(),
             header_warning: header.clone().set_fg(Some(Color::Yellow)).clone(),
             header_note: header.clone().set_fg(Some(Color::Green)).clone(),
             header_help: header.clone().set_fg(Some(Color::Cyan)).clone(),
             header_message: header,

             primary_label_bug: ColorSpec::new().set_fg(Some(Color::Red)).clone(),
             primary_label_error: ColorSpec::new().set_fg(Some(Color::Red)).clone(),
             primary_label_warning: ColorSpec::new().set_fg(Some(Color::Yellow)).clone(),
             primary_label_note: ColorSpec::new().set_fg(Some(Color::Green)).clone(),
             primary_label_help: ColorSpec::new().set_fg(Some(Color::Cyan)).clone(),
             secondary_label: ColorSpec::new().set_fg(Some(blue)).clone(),

             line_number: ColorSpec::new().set_fg(Some(blue)).clone(),
             source_border: ColorSpec::new().set_fg(Some(blue)).clone(),
             note_bullet: ColorSpec::new().set_fg(Some(blue)).clone(),
         }
     }
 }

 impl Default for Styles {
     fn default() -> Styles {
         // Blue is really difficult to see on the standard windows command line
         #[cfg(windows)]
         const BLUE: Color = Color::Cyan;
         #[cfg(not(windows))]
         const BLUE: Color = Color::Blue;

         Self::with_blue(BLUE)
     }
 }

 /// Characters to use when rendering the diagnostic.
 #[derive(Clone, Debug)]
 pub struct Chars {
     /// The character to use for the top-left border of the source.
     /// Defaults to: `'┌'`.
     pub source_border_top_left: char,
     /// The character to use for the top border of the source.
     /// Defaults to: `'─'`.
     pub source_border_top: char,
     /// The character to use for the left border of the source.
     /// Defaults to: `'│'`.
     pub source_border_left: char,
     /// The character to use for the left border break of the source.
     /// Defaults to: `'·'`.
     pub source_border_left_break: char,

     /// The character to use for the note bullet.
     /// Defaults to: `'='`.
     pub note_bullet: char,

     /// The character to use for marking a single-line primary label.
     /// Defaults to: `'^'`.
     pub single_primary_caret: char,
     /// The character to use for marking a single-line secondary label.
     /// Defaults to: `'-'`.
     pub single_secondary_caret: char,

     /// The character to use for marking the start of a multi-line primary label.
     /// Defaults to: `'^'`.
     pub multi_primary_caret_start: char,
     /// The character to use for marking the end of a multi-line primary label.
     /// Defaults to: `'^'`.
     pub multi_primary_caret_end: char,
     /// The character to use for marking the start of a multi-line secondary label.
     /// Defaults to: `'\''`.
     pub multi_secondary_caret_start: char,
     /// The character to use for marking the end of a multi-line secondary label.
     /// Defaults to: `'\''`.
     pub multi_secondary_caret_end: char,
     /// The character to use for the top-left corner of a multi-line label.
     /// Defaults to: `'╭'`.
     pub multi_top_left: char,
     /// The character to use for the top of a multi-line label.
     /// Defaults to: `'─'`.
     pub multi_top: char,
     /// The character to use for the bottom-left corner of a multi-line label.
     /// Defaults to: `'╰'`.
     pub multi_bottom_left: char,
     /// The character to use when marking the bottom of a multi-line label.
     /// Defaults to: `'─'`.
     pub multi_bottom: char,
     /// The character to use for the left of a multi-line label.
     /// Defaults to: `'│'`.
     pub multi_left: char,

     /// The character to use for the left of a pointer underneath a caret.
     /// Defaults to: `'│'`.
     pub pointer_left: char,
 }

 impl Default for Chars {
     fn default() -> Chars {
         Chars {
             source_border_top_left: '┌',
             source_border_top: '─',
             source_border_left: '│',
             source_border_left_break: '·',

             note_bullet: '=',

             single_primary_caret: '^',
             single_secondary_caret: '-',

             multi_primary_caret_start: '^',
             multi_primary_caret_end: '^',
             multi_secondary_caret_start: '\'',
             multi_secondary_caret_end: '\'',
             multi_top_left: '╭',
             multi_top: '─',
             multi_bottom_left: '╰',
             multi_bottom: '─',
             multi_left: '│',

             pointer_left: '│',
         }
     }
 }
	use termcolor::{Color, ColorSpec};

	use crate::diagnostic::{LabelStyle, Severity};

	/// Configures how a diagnostic is rendered.
	#[derive(Clone, Debug)]
	pub struct Config {
	/// The display style to use when rendering diagnostics.
	/// Defaults to: [`DisplayStyle::Rich`].
	///
	/// [`DisplayStyle::Rich`]: DisplayStyle::Rich
	pub display_style: DisplayStyle,
	/// Column width of tabs.
	/// Defaults to: `4`.
	pub tab_width: usize,
	/// Styles to use when rendering the diagnostic.
	pub styles: Styles,
	/// Characters to use when rendering the diagnostic.
	pub chars: Chars,
	}

	impl Default for Config {
	fn default() -> Config {
	Config {
	display_style: DisplayStyle::Rich,
	tab_width: 4,
	styles: Styles::default(),
	chars: Chars::default(),
	}
	}
	}

	/// The display style to use when rendering diagnostics.
	#[derive(Clone, Debug)]
	pub enum DisplayStyle {
	/// Output a richly formatted diagnostic, with source code previews.
	///
	/// ```text
	/// error[E0001]: unexpected type in `+` application
	/// ┌─ test:2:9
	/// │
	/// 2 │ (+ test "")
	/// │ ^^ expected `Int` but found `String`
	/// │
	/// = expected type `Int`
	/// found type `String`
	///
	/// error[E0002]: Bad config found
	///
	/// ```
	Rich,
	/// Output a short diagnostic, with a line number, severity, and message.
	///
	/// ```text
	/// test:2:9: error[E0001]: unexpected type in `+` application
	/// error[E0002]: Bad config found
	/// ```
	Short,
	}

	/// Styles to use when rendering the diagnostic.
	#[derive(Clone, Debug)]
	pub struct Styles {
	/// The style to use when rendering bug headers.
	/// Defaults to `fg:red bold intense`.
	pub header_bug: ColorSpec,
	/// The style to use when rendering error headers.
	/// Defaults to `fg:red bold intense`.
	pub header_error: ColorSpec,
	/// The style to use when rendering warning headers.
	/// Defaults to `fg:yellow bold intense`.
	pub header_warning: ColorSpec,
	/// The style to use when rendering note headers.
	/// Defaults to `fg:green bold intense`.
	pub header_note: ColorSpec,
	/// The style to use when rendering help headers.
	/// Defaults to `fg:cyan bold intense`.
	pub header_help: ColorSpec,
	/// The style to use when the main diagnostic message.
	/// Defaults to `bold intense`.
	pub header_message: ColorSpec,

	/// The style to use when rendering bug labels.
	/// Defaults to `fg:red`.
	pub primary_label_bug: ColorSpec,
	/// The style to use when rendering error labels.
	/// Defaults to `fg:red`.
	pub primary_label_error: ColorSpec,
	/// The style to use when rendering warning labels.
	/// Defaults to `fg:yellow`.
	pub primary_label_warning: ColorSpec,
	/// The style to use when rendering note labels.
	/// Defaults to `fg:green`.
	pub primary_label_note: ColorSpec,
	/// The style to use when rendering help labels.
	/// Defaults to `fg:cyan`.
	pub primary_label_help: ColorSpec,
	/// The style to use when rendering secondary labels.
	/// Defaults `fg:blue` (or `fg:cyan` on windows).
	pub secondary_label: ColorSpec,

	/// The style to use when rendering the line numbers.
	/// Defaults `fg:blue` (or `fg:cyan` on windows).
	pub line_number: ColorSpec,
	/// The style to use when rendering the source code borders.
	/// Defaults `fg:blue` (or `fg:cyan` on windows).
	pub source_border: ColorSpec,
	/// The style to use when rendering the note bullets.
	/// Defaults `fg:blue` (or `fg:cyan` on windows).
	pub note_bullet: ColorSpec,
	}

	impl Styles {
	/// The style used to mark a header at a given severity.
	pub fn header(&self, severity: Severity) -> &ColorSpec {
	match severity {
	Severity::Bug => &self.header_bug,
	Severity::Error => &self.header_error,
	Severity::Warning => &self.header_warning,
	Severity::Note => &self.header_note,
	Severity::Help => &self.header_help,
	}
	}

	/// The style used to mark a primary or secondary label at a given severity.
	pub fn label(&self, severity: Severity, label_style: LabelStyle) -> &ColorSpec {
	match (label_style, severity) {
	(LabelStyle::Primary, Severity::Bug) => &self.primary_label_bug,
	(LabelStyle::Primary, Severity::Error) => &self.primary_label_error,
	(LabelStyle::Primary, Severity::Warning) => &self.primary_label_warning,
	(LabelStyle::Primary, Severity::Note) => &self.primary_label_note,
	(LabelStyle::Primary, Severity::Help) => &self.primary_label_help,
	(LabelStyle::Secondary, _) => &self.secondary_label,
	}
	}

	#[doc(hidden)]
	pub fn with_blue(blue: Color) -> Styles {
	let header = ColorSpec::new().set_bold(true).set_intense(true).clone();

	Styles {
	header_bug: header.clone().set_fg(Some(Color::Red)).clone(),
	header_error: header.clone().set_fg(Some(Color::Red)).clone(),
	header_warning: header.clone().set_fg(Some(Color::Yellow)).clone(),
	header_note: header.clone().set_fg(Some(Color::Green)).clone(),
	header_help: header.clone().set_fg(Some(Color::Cyan)).clone(),
	header_message: header,

	primary_label_bug: ColorSpec::new().set_fg(Some(Color::Red)).clone(),
	primary_label_error: ColorSpec::new().set_fg(Some(Color::Red)).clone(),
	primary_label_warning: ColorSpec::new().set_fg(Some(Color::Yellow)).clone(),
	primary_label_note: ColorSpec::new().set_fg(Some(Color::Green)).clone(),
	primary_label_help: ColorSpec::new().set_fg(Some(Color::Cyan)).clone(),
	secondary_label: ColorSpec::new().set_fg(Some(blue)).clone(),

	line_number: ColorSpec::new().set_fg(Some(blue)).clone(),
	source_border: ColorSpec::new().set_fg(Some(blue)).clone(),
	note_bullet: ColorSpec::new().set_fg(Some(blue)).clone(),
	}
	}
	}

	impl Default for Styles {
	fn default() -> Styles {
	// Blue is really difficult to see on the standard windows command line
	#[cfg(windows)]
	const BLUE: Color = Color::Cyan;
	#[cfg(not(windows))]
	const BLUE: Color = Color::Blue;

	Self::with_blue(BLUE)
	}
	}

	/// Characters to use when rendering the diagnostic.
	#[derive(Clone, Debug)]
	pub struct Chars {
	/// The character to use for the top-left border of the source.
	/// Defaults to: `'┌'`.
	pub source_border_top_left: char,
	/// The character to use for the top border of the source.
	/// Defaults to: `'─'`.
	pub source_border_top: char,
	/// The character to use for the left border of the source.
	/// Defaults to: `'│'`.
	pub source_border_left: char,
	/// The character to use for the left border break of the source.
	/// Defaults to: `'·'`.
	pub source_border_left_break: char,

	/// The character to use for the note bullet.
	/// Defaults to: `'='`.
	pub note_bullet: char,

	/// The character to use for marking a single-line primary label.
	/// Defaults to: `'^'`.
	pub single_primary_caret: char,
	/// The character to use for marking a single-line secondary label.
	/// Defaults to: `'-'`.
	pub single_secondary_caret: char,

	/// The character to use for marking the start of a multi-line primary label.
	/// Defaults to: `'^'`.
	pub multi_primary_caret_start: char,
	/// The character to use for marking the end of a multi-line primary label.
	/// Defaults to: `'^'`.
	pub multi_primary_caret_end: char,
	/// The character to use for marking the start of a multi-line secondary label.
	/// Defaults to: `'\''`.
	pub multi_secondary_caret_start: char,
	/// The character to use for marking the end of a multi-line secondary label.
	/// Defaults to: `'\''`.
	pub multi_secondary_caret_end: char,
	/// The character to use for the top-left corner of a multi-line label.
	/// Defaults to: `'╭'`.
	pub multi_top_left: char,
	/// The character to use for the top of a multi-line label.
	/// Defaults to: `'─'`.
	pub multi_top: char,
	/// The character to use for the bottom-left corner of a multi-line label.
	/// Defaults to: `'╰'`.
	pub multi_bottom_left: char,
	/// The character to use when marking the bottom of a multi-line label.
	/// Defaults to: `'─'`.
	pub multi_bottom: char,
	/// The character to use for the left of a multi-line label.
	/// Defaults to: `'│'`.
	pub multi_left: char,

	/// The character to use for the left of a pointer underneath a caret.
	/// Defaults to: `'│'`.
	pub pointer_left: char,
	}

	impl Default for Chars {
	fn default() -> Chars {
	Chars {
	source_border_top_left: '┌',
	source_border_top: '─',
	source_border_left: '│',
	source_border_left_break: '·',

	note_bullet: '=',

	single_primary_caret: '^',
	single_secondary_caret: '-',

	multi_primary_caret_start: '^',
	multi_primary_caret_end: '^',
	multi_secondary_caret_start: '\'',
	multi_secondary_caret_end: '\'',
	multi_top_left: '╭',
	multi_top: '─',
	multi_bottom_left: '╰',
	multi_bottom: '─',
	multi_left: '│',

	pointer_left: '│',
	}
	}
	}