1 files changed, 293 insertions, 0 deletions
diff --git a/vendor/criterion-plot/src/errorbar.rs b/vendor/criterion-plot/src/errorbar.rs
new file mode 100755
index 000000000..f7a823c5c
--- /dev/null
+++ b/vendor/criterion-plot/src/errorbar.rs
@@ -0,0 +1,293 @@
+//! Error bar plots
+
+use std::borrow::Cow;
+use std::iter::IntoIterator;
+
+use crate::data::Matrix;
+use crate::traits::{self, Data, Set};
+use crate::{
+    Color, Display, ErrorBarDefault, Figure, Label, LineType, LineWidth, Plot, PointSize,
+    PointType, Script,
+};
+
+/// Properties common to error bar plots
+pub struct Properties {
+    color: Option<Color>,
+    label: Option<Cow<'static, str>>,
+    line_type: LineType,
+    linewidth: Option<f64>,
+    point_size: Option<f64>,
+    point_type: Option<PointType>,
+    style: Style,
+}
+
+impl ErrorBarDefault<Style> for Properties {
+    fn default(style: Style) -> Properties {
+        Properties {
+            color: None,
+            label: None,
+            line_type: LineType::Solid,
+            linewidth: None,
+            point_type: None,
+            point_size: None,
+            style,
+        }
+    }
+}
+
+impl Script for Properties {
+    // Allow clippy::format_push_string even with older versions of rust (<1.62) which
+    // don't have it defined.
+    #[allow(clippy::all)]
+    fn script(&self) -> String {
+        let mut script = format!("with {} ", self.style.display());
+
+        script.push_str(&format!("lt {} ", self.line_type.display()));
+
+        if let Some(lw) = self.linewidth {
+            script.push_str(&format!("lw {} ", lw))
+        }
+
+        if let Some(color) = self.color {
+            script.push_str(&format!("lc rgb '{}' ", color.display()))
+        }
+
+        if let Some(pt) = self.point_type {
+            script.push_str(&format!("pt {} ", pt.display()))
+        }
+
+        if let Some(ps) = self.point_size {
+            script.push_str(&format!("ps {} ", ps))
+        }
+
+        if let Some(ref label) = self.label {
+            script.push_str("title '");
+            script.push_str(label);
+            script.push('\'')
+        } else {
+            script.push_str("notitle")
+        }
+
+        script
+    }
+}
+
+impl Set<Color> for Properties {
+    /// Changes the color of the error bars
+    fn set(&mut self, color: Color) -> &mut Properties {
+        self.color = Some(color);
+        self
+    }
+}
+
+impl Set<Label> for Properties {
+    /// Sets the legend label
+    fn set(&mut self, label: Label) -> &mut Properties {
+        self.label = Some(label.0);
+        self
+    }
+}
+
+impl Set<LineType> for Properties {
+    /// Change the line type
+    ///
+    /// **Note** By default `Solid` lines are used
+    fn set(&mut self, lt: LineType) -> &mut Properties {
+        self.line_type = lt;
+        self
+    }
+}
+
+impl Set<LineWidth> for Properties {
+    /// Changes the linewidth
+    ///
+    /// # Panics
+    ///
+    /// Panics if `lw` is a non-positive value
+    fn set(&mut self, lw: LineWidth) -> &mut Properties {
+        let lw = lw.0;
+
+        assert!(lw > 0.);
+
+        self.linewidth = Some(lw);
+        self
+    }
+}
+
+impl Set<PointSize> for Properties {
+    /// Changes the size of the points
+    ///
+    /// # Panics
+    ///
+    /// Panics if `size` is a non-positive value
+    fn set(&mut self, ps: PointSize) -> &mut Properties {
+        let ps = ps.0;
+
+        assert!(ps > 0.);
+
+        self.point_size = Some(ps);
+        self
+    }
+}
+
+impl Set<PointType> for Properties {
+    /// Changes the point type
+    fn set(&mut self, pt: PointType) -> &mut Properties {
+        self.point_type = Some(pt);
+        self
+    }
+}
+
+#[derive(Clone, Copy)]
+enum Style {
+    XErrorBars,
+    XErrorLines,
+    YErrorBars,
+    YErrorLines,
+}
+
+impl Display<&'static str> for Style {
+    fn display(&self) -> &'static str {
+        match *self {
+            Style::XErrorBars => "xerrorbars",
+            Style::XErrorLines => "xerrorlines",
+            Style::YErrorBars => "yerrorbars",
+            Style::YErrorLines => "yerrorlines",
+        }
+    }
+}
+
+/// Asymmetric error bar plots
+pub enum ErrorBar<X, Y, L, H> {
+    /// Horizontal error bars
+    XErrorBars {
+        /// X coordinate of the data points
+        x: X,
+        /// Y coordinate of the data points
+        y: Y,
+        /// X coordinate of the left end of the error bar
+        x_low: L,
+        /// Y coordinate of the right end of the error bar
+        x_high: H,
+    },
+    /// Horizontal error bars, where each point is joined by a line
+    XErrorLines {
+        /// X coordinate of the data points
+        x: X,
+        /// Y coordinate of the data points
+        y: Y,
+        /// X coordinate of the left end of the error bar
+        x_low: L,
+        /// Y coordinate of the right end of the error bar
+        x_high: H,
+    },
+    /// Vertical error bars
+    YErrorBars {
+        /// X coordinate of the data points
+        x: X,
+        /// Y coordinate of the data points
+        y: Y,
+        /// Y coordinate of the bottom of the error bar
+        y_low: L,
+        /// Y coordinate of the top of the error bar
+        y_high: H,
+    },
+    /// Vertical error bars, where each point is joined by a line
+    YErrorLines {
+        /// X coordinate of the data points
+        x: X,
+        /// Y coordinate of the data points
+        y: Y,
+        /// Y coordinate of the bottom of the error bar
+        y_low: L,
+        /// Y coordinate of the top of the error bar
+        y_high: H,
+    },
+}
+
+impl<X, Y, L, H> ErrorBar<X, Y, L, H> {
+    fn style(&self) -> Style {
+        match *self {
+            ErrorBar::XErrorBars { .. } => Style::XErrorBars,
+            ErrorBar::XErrorLines { .. } => Style::XErrorLines,
+            ErrorBar::YErrorBars { .. } => Style::YErrorBars,
+            ErrorBar::YErrorLines { .. } => Style::YErrorLines,
+        }
+    }
+}
+
+impl<X, Y, L, H> traits::Plot<ErrorBar<X, Y, L, H>> for Figure
+where
+    H: IntoIterator,
+    H::Item: Data,
+    L: IntoIterator,
+    L::Item: Data,
+    X: IntoIterator,
+    X::Item: Data,
+    Y: IntoIterator,
+    Y::Item: Data,
+{
+    type Properties = Properties;
+
+    fn plot<F>(&mut self, e: ErrorBar<X, Y, L, H>, configure: F) -> &mut Figure
+    where
+        F: FnOnce(&mut Properties) -> &mut Properties,
+    {
+        let (x_factor, y_factor) = crate::scale_factor(&self.axes, crate::Axes::BottomXLeftY);
+
+        let style = e.style();
+        let (x, y, length, height, e_factor) = match e {
+            ErrorBar::XErrorBars {
+                x,
+                y,
+                x_low,
+                x_high,
+            }
+            | ErrorBar::XErrorLines {
+                x,
+                y,
+                x_low,
+                x_high,
+            } => (x, y, x_low, x_high, x_factor),
+            ErrorBar::YErrorBars {
+                x,
+                y,
+                y_low,
+                y_high,
+            }
+            | ErrorBar::YErrorLines {
+                x,
+                y,
+                y_low,
+                y_high,
+            } => (x, y, y_low, y_high, y_factor),
+        };
+        let data = Matrix::new(
+            izip!(x, y, length, height),
+            (x_factor, y_factor, e_factor, e_factor),
+        );
+        self.plots.push(Plot::new(
+            data,
+            configure(&mut ErrorBarDefault::default(style)),
+        ));
+        self
+    }
+}
+
+// TODO XY error bar
+// pub struct XyErrorBar<X, Y, XL, XH, YL, YH> {
+// x: X,
+// y: Y,
+// x_low: XL,
+// x_high: XH,
+// y_low: YL,
+// y_high: YH,
+// }
+
+// TODO Symmetric error bars
+// pub enum SymmetricErrorBar {
+// XSymmetricErrorBar { x: X, y: Y, x_delta: D },
+// XSymmetricErrorLines { x: X, y: Y, x_delta: D },
+// YSymmetricErrorBar { x: X, y: Y, y_delta: D },
+// YSymmetricErrorLines { x: X, y: Y, y_delta: D },
+// }