Move segment functions to KCL (#7333)

Signed-off-by: Nick Cameron <nrc@ncameron.org>

rust/kcl-lib/src/std/mod.rs

@@ -45,17 +45,6 @@ pub type StdFn = fn(
 
 lazy_static! {
     static ref CORE_FNS: Vec<Box<dyn StdLibFn>> = vec![
-        Box::new(crate::std::segment::SegEnd),
-        Box::new(crate::std::segment::SegEndX),
-        Box::new(crate::std::segment::SegEndY),
-        Box::new(crate::std::segment::SegStart),
-        Box::new(crate::std::segment::SegStartX),
-        Box::new(crate::std::segment::SegStartY),
-        Box::new(crate::std::segment::LastSegX),
-        Box::new(crate::std::segment::LastSegY),
-        Box::new(crate::std::segment::SegLen),
-        Box::new(crate::std::segment::SegAng),
-        Box::new(crate::std::segment::TangentToEnd),
         Box::new(crate::std::sketch::InvoluteCircular),
         Box::new(crate::std::sketch::Line),
         Box::new(crate::std::sketch::XLine),
@@ -352,6 +341,50 @@ pub(crate) fn std_fn(path: &str, fn_name: &str) -> (crate::std::StdFn, StdFnProp
             |e, a| Box::pin(crate::std::patterns::pattern_circular_2d(e, a)),
             StdFnProps::default("std::sketch::patternCircular2d"),
         ),
+        ("sketch", "segEnd") => (
+            |e, a| Box::pin(crate::std::segment::segment_end(e, a)),
+            StdFnProps::default("std::sketch::segEnd"),
+        ),
+        ("sketch", "segEndX") => (
+            |e, a| Box::pin(crate::std::segment::segment_end_x(e, a)),
+            StdFnProps::default("std::sketch::segEndX"),
+        ),
+        ("sketch", "segEndY") => (
+            |e, a| Box::pin(crate::std::segment::segment_end_y(e, a)),
+            StdFnProps::default("std::sketch::segEndY"),
+        ),
+        ("sketch", "segStart") => (
+            |e, a| Box::pin(crate::std::segment::segment_start(e, a)),
+            StdFnProps::default("std::sketch::segStart"),
+        ),
+        ("sketch", "segStartX") => (
+            |e, a| Box::pin(crate::std::segment::segment_start_x(e, a)),
+            StdFnProps::default("std::sketch::segStartX"),
+        ),
+        ("sketch", "segStartY") => (
+            |e, a| Box::pin(crate::std::segment::segment_start_y(e, a)),
+            StdFnProps::default("std::sketch::segStartY"),
+        ),
+        ("sketch", "lastSegX") => (
+            |e, a| Box::pin(crate::std::segment::last_segment_x(e, a)),
+            StdFnProps::default("std::sketch::lastSegX"),
+        ),
+        ("sketch", "lastSegY") => (
+            |e, a| Box::pin(crate::std::segment::last_segment_y(e, a)),
+            StdFnProps::default("std::sketch::lastSegY"),
+        ),
+        ("sketch", "segLen") => (
+            |e, a| Box::pin(crate::std::segment::segment_length(e, a)),
+            StdFnProps::default("std::sketch::segLen"),
+        ),
+        ("sketch", "segAng") => (
+            |e, a| Box::pin(crate::std::segment::segment_angle(e, a)),
+            StdFnProps::default("std::sketch::segAng"),
+        ),
+        ("sketch", "tangentToEnd") => (
+            |e, a| Box::pin(crate::std::segment::tangent_to_end(e, a)),
+            StdFnProps::default("std::sketch::tangentToEnd"),
+        ),
         ("appearance", "hexString") => (
             |e, a| Box::pin(crate::std::appearance::hex_string(e, a)),
             StdFnProps::default("std::appearance::hexString"),

rust/kcl-lib/src/std/segment.rs

@@ -1,7 +1,6 @@
 //! Functions related to line segments.
 
 use anyhow::Result;
-use kcl_derive_docs::stdlib;
 use kittycad_modeling_cmds::shared::Angle;
 
 use super::utils::untype_point;
@@ -22,39 +21,6 @@ pub async fn segment_end(exec_state: &mut ExecState, args: Args) -> Result<KclVa
     args.make_kcl_val_from_point([pt[0].n, pt[1].n], pt[0].ty.clone())
 }
 
-/// Compute the ending point of the provided line segment.
-///
-/// ```no_run
-/// w = 15
-/// cube = startSketchOn(XY)
-///   |> startProfile(at = [0, 0])
-///   |> line(end = [w, 0], tag = $line1)
-///   |> line(end = [0, w], tag = $line2)
-///   |> line(end = [-w, 0], tag = $line3)
-///   |> line(end = [0, -w], tag = $line4)
-///   |> close()
-///   |> extrude(length = 5)
-///
-/// fn cylinder(radius, tag) {
-///   return startSketchOn(XY)
-///   |> startProfile(at = [0, 0])
-///   |> circle(radius = radius, center = segEnd(tag) )
-///   |> extrude(length = radius)
-/// }
-///
-/// cylinder(radius = 1, tag = line1)
-/// cylinder(radius = 2, tag = line2)
-/// cylinder(radius = 3, tag = line3)
-/// cylinder(radius = 4, tag = line4)
-/// ```
-#[stdlib {
-    name = "segEnd",
-    unlabeled_first = true,
-    args = {
-        tag = { docs = "The line segment being queried by its tag"},
-    },
-    tags = ["sketch"]
-}]
 fn inner_segment_end(tag: &TagIdentifier, exec_state: &mut ExecState, args: Args) -> Result<[TyF64; 2], KclError> {
     let line = args.get_tag_engine_info(exec_state, tag)?;
     let path = line.path.clone().ok_or_else(|| {
@@ -78,27 +44,6 @@ pub async fn segment_end_x(exec_state: &mut ExecState, args: Args) -> Result<Kcl
     Ok(args.make_user_val_from_f64_with_type(result))
 }
 
-/// Compute the ending point of the provided line segment along the 'x' axis.
-///
-/// ```no_run
-/// exampleSketch = startSketchOn(XZ)
-///   |> startProfile(at = [0, 0])
-///   |> line(end = [20, 0], tag = $thing)
-///   |> line(end = [0, 5])
-///   |> line(end = [segEndX(thing), 0])
-///   |> line(end = [-20, 10])
-///   |> close()
-///  
-/// example = extrude(exampleSketch, length = 5)
-/// ```
-#[stdlib {
-    name = "segEndX",
-    unlabeled_first = true,
-    args = {
-        tag = { docs = "The line segment being queried by its tag"},
-    },
-    tags = ["sketch"]
-}]
 fn inner_segment_end_x(tag: &TagIdentifier, exec_state: &mut ExecState, args: Args) -> Result<TyF64, KclError> {
     let line = args.get_tag_engine_info(exec_state, tag)?;
     let path = line.path.clone().ok_or_else(|| {
@@ -119,28 +64,6 @@ pub async fn segment_end_y(exec_state: &mut ExecState, args: Args) -> Result<Kcl
     Ok(args.make_user_val_from_f64_with_type(result))
 }
 
-/// Compute the ending point of the provided line segment along the 'y' axis.
-///
-/// ```no_run
-/// exampleSketch = startSketchOn(XZ)
-///   |> startProfile(at = [0, 0])
-///   |> line(end = [20, 0])
-///   |> line(end = [0, 3], tag = $thing)
-///   |> line(end = [-10, 0])
-///   |> line(end = [0, segEndY(thing)])
-///   |> line(end = [-10, 0])
-///   |> close()
-///  
-/// example = extrude(exampleSketch, length = 5)
-/// ```
-#[stdlib {
-    name = "segEndY",
-    unlabeled_first = true,
-    args = {
-        tag = { docs = "The line segment being queried by its tag"},
-    },
-    tags = ["sketch"]
-}]
 fn inner_segment_end_y(tag: &TagIdentifier, exec_state: &mut ExecState, args: Args) -> Result<TyF64, KclError> {
     let line = args.get_tag_engine_info(exec_state, tag)?;
     let path = line.path.clone().ok_or_else(|| {
@@ -161,39 +84,6 @@ pub async fn segment_start(exec_state: &mut ExecState, args: Args) -> Result<Kcl
     args.make_kcl_val_from_point([pt[0].n, pt[1].n], pt[0].ty.clone())
 }
 
-/// Compute the starting point of the provided line segment.
-///
-/// ```no_run
-/// w = 15
-/// cube = startSketchOn(XY)
-///   |> startProfile(at = [0, 0])
-///   |> line(end = [w, 0], tag = $line1)
-///   |> line(end = [0, w], tag = $line2)
-///   |> line(end = [-w, 0], tag = $line3)
-///   |> line(end = [0, -w], tag = $line4)
-///   |> close()
-///   |> extrude(length = 5)
-///
-/// fn cylinder(radius, tag) {
-///   return startSketchOn(XY)
-///   |> startProfile(at = [0, 0])
-///   |> circle( radius = radius, center = segStart(tag) )
-///   |> extrude(length = radius)
-/// }
-///
-/// cylinder(radius = 1, tag = line1)
-/// cylinder(radius = 2, tag = line2)
-/// cylinder(radius = 3, tag = line3)
-/// cylinder(radius = 4, tag = line4)
-/// ```
-#[stdlib {
-    name = "segStart",
-    unlabeled_first = true,
-    args = {
-        tag = { docs = "The line segment being queried by its tag"},
-    },
-    tags = ["sketch"]
-}]
 fn inner_segment_start(tag: &TagIdentifier, exec_state: &mut ExecState, args: Args) -> Result<[TyF64; 2], KclError> {
     let line = args.get_tag_engine_info(exec_state, tag)?;
     let path = line.path.clone().ok_or_else(|| {
@@ -217,27 +107,6 @@ pub async fn segment_start_x(exec_state: &mut ExecState, args: Args) -> Result<K
     Ok(args.make_user_val_from_f64_with_type(result))
 }
 
-/// Compute the starting point of the provided line segment along the 'x' axis.
-///
-/// ```no_run
-/// exampleSketch = startSketchOn(XZ)
-///   |> startProfile(at = [0, 0])
-///   |> line(end = [20, 0], tag = $thing)
-///   |> line(end = [0, 5])
-///   |> line(end = [20 - segStartX(thing), 0])
-///   |> line(end = [-20, 10])
-///   |> close()
-///  
-/// example = extrude(exampleSketch, length = 5)
-/// ```
-#[stdlib {
-    name = "segStartX",
-    unlabeled_first = true,
-    args = {
-        tag = { docs = "The line segment being queried by its tag"},
-    },
-    tags = ["sketch"]
-}]
 fn inner_segment_start_x(tag: &TagIdentifier, exec_state: &mut ExecState, args: Args) -> Result<TyF64, KclError> {
     let line = args.get_tag_engine_info(exec_state, tag)?;
     let path = line.path.clone().ok_or_else(|| {
@@ -258,28 +127,6 @@ pub async fn segment_start_y(exec_state: &mut ExecState, args: Args) -> Result<K
     Ok(args.make_user_val_from_f64_with_type(result))
 }
 
-/// Compute the starting point of the provided line segment along the 'y' axis.
-///
-/// ```no_run
-/// exampleSketch = startSketchOn(XZ)
-///   |> startProfile(at = [0, 0])
-///   |> line(end = [20, 0])
-///   |> line(end = [0, 3], tag = $thing)
-///   |> line(end = [-10, 0])
-///   |> line(end = [0, 20-segStartY(thing)])
-///   |> line(end = [-10, 0])
-///   |> close()
-///  
-/// example = extrude(exampleSketch, length = 5)
-/// ```
-#[stdlib {
-    name = "segStartY",
-    unlabeled_first = true,
-    args = {
-        tag = { docs = "The line segment being queried by its tag"},
-    },
-    tags = ["sketch"]
-}]
 fn inner_segment_start_y(tag: &TagIdentifier, exec_state: &mut ExecState, args: Args) -> Result<TyF64, KclError> {
     let line = args.get_tag_engine_info(exec_state, tag)?;
     let path = line.path.clone().ok_or_else(|| {
@@ -300,28 +147,6 @@ pub async fn last_segment_x(exec_state: &mut ExecState, args: Args) -> Result<Kc
     Ok(args.make_user_val_from_f64_with_type(result))
 }
 
-/// Extract the 'x' axis value of the last line segment in the provided 2-d
-/// sketch.
-///
-/// ```no_run
-/// exampleSketch = startSketchOn(XZ)
-///   |> startProfile(at = [0, 0])
-///   |> line(end = [5, 0])
-///   |> line(end = [20, 5])
-///   |> line(end = [lastSegX(%), 0])
-///   |> line(end = [-15, 0])
-///   |> close()
-///
-/// example = extrude(exampleSketch, length = 5)
-/// ```
-#[stdlib {
-    name = "lastSegX",
-    unlabeled_first = true,
-    args = {
-        sketch = { docs = "The sketch whose line segment is being queried"},
-    },
-    tags = ["sketch"]
-}]
 fn inner_last_segment_x(sketch: Sketch, args: Args) -> Result<TyF64, KclError> {
     let last_line = sketch
         .paths
@@ -346,28 +171,6 @@ pub async fn last_segment_y(exec_state: &mut ExecState, args: Args) -> Result<Kc
     Ok(args.make_user_val_from_f64_with_type(result))
 }
 
-/// Extract the 'y' axis value of the last line segment in the provided 2-d
-/// sketch.
-///
-/// ```no_run
-/// exampleSketch = startSketchOn(XZ)
-///   |> startProfile(at = [0, 0])
-///   |> line(end = [5, 0])
-///   |> line(end = [20, 5])
-///   |> line(end = [0, lastSegY(%)])
-///   |> line(end = [-15, 0])
-///   |> close()
-///
-/// example = extrude(exampleSketch, length = 5)
-/// ```
-#[stdlib {
-    name = "lastSegY",
-    unlabeled_first = true,
-    args = {
-        sketch = { docs = "The sketch whose line segment is being queried"},
-    },
-    tags = ["sketch"]
-}]
 fn inner_last_segment_y(sketch: Sketch, args: Args) -> Result<TyF64, KclError> {
     let last_line = sketch
         .paths
@@ -390,33 +193,6 @@ pub async fn segment_length(exec_state: &mut ExecState, args: Args) -> Result<Kc
     Ok(args.make_user_val_from_f64_with_type(result))
 }
 
-/// Compute the length of the provided line segment.
-///
-/// ```no_run
-/// exampleSketch = startSketchOn(XZ)
-///   |> startProfile(at = [0, 0])
-///   |> angledLine(
-///     angle = 60,
-///     length = 10,
-///     tag = $thing,
-///   )
-///   |> tangentialArc(angle = -120, radius = 5)
-///   |> angledLine(
-///     angle = -60,
-///     length = segLen(thing),
-///   )
-///   |> close()
-///
-/// example = extrude(exampleSketch, length = 5)
-/// ```
-#[stdlib {
-    name = "segLen",
-    unlabeled_first = true,
-    args = {
-        tag = { docs = "The line segment being queried by its tag"},
-    },
-    tags = ["sketch"]
-}]
 fn inner_segment_length(tag: &TagIdentifier, exec_state: &mut ExecState, args: Args) -> Result<TyF64, KclError> {
     let line = args.get_tag_engine_info(exec_state, tag)?;
     let path = line.path.clone().ok_or_else(|| {
@@ -437,29 +213,6 @@ pub async fn segment_angle(exec_state: &mut ExecState, args: Args) -> Result<Kcl
     Ok(args.make_user_val_from_f64_with_type(TyF64::new(result, NumericType::degrees())))
 }
 
-/// Compute the angle (in degrees) of the provided line segment.
-///
-/// ```no_run
-/// exampleSketch = startSketchOn(XZ)
-///   |> startProfile(at = [0, 0])
-///   |> line(end = [10, 0])
-///   |> line(end = [5, 10], tag = $seg01)
-///   |> line(end = [-10, 0])
-///   |> angledLine(angle = segAng(seg01), length = 10)
-///   |> line(end = [-10, 0])
-///   |> angledLine(angle = segAng(seg01), length = -15)
-///   |> close()
-///
-/// example = extrude(exampleSketch, length = 4)
-/// ```
-#[stdlib {
-    name = "segAng",
-    unlabeled_first = true,
-    args = {
-        tag = { docs = "The line segment being queried by its tag"},
-    },
-    tags = ["sketch"]
-}]
 fn inner_segment_angle(tag: &TagIdentifier, exec_state: &mut ExecState, args: Args) -> Result<f64, KclError> {
     let line = args.get_tag_engine_info(exec_state, tag)?;
     let path = line.path.clone().ok_or_else(|| {
@@ -482,85 +235,6 @@ pub async fn tangent_to_end(exec_state: &mut ExecState, args: Args) -> Result<Kc
     Ok(args.make_user_val_from_f64_with_type(TyF64::new(result, NumericType::degrees())))
 }
 
-/// Returns the angle coming out of the end of the segment in degrees.
-///
-/// ```no_run
-/// // Horizontal pill.
-/// pillSketch = startSketchOn(XZ)
-///   |> startProfile(at = [0, 0])
-///   |> line(end = [20, 0])
-///   |> tangentialArc(end = [0, 10], tag = $arc1)
-///   |> angledLine(
-///     angle = tangentToEnd(arc1),
-///     length = 20,
-///   )
-///   |> tangentialArc(end = [0, -10])
-///   |> close()
-///
-/// pillExtrude = extrude(pillSketch, length = 10)
-/// ```
-///
-/// ```no_run
-/// // Vertical pill.  Use absolute coordinate for arc.
-/// pillSketch = startSketchOn(XZ)
-///   |> startProfile(at = [0, 0])
-///   |> line(end = [0, 20])
-///   |> tangentialArc(endAbsolute = [10, 20], tag = $arc1)
-///   |> angledLine(
-///     angle = tangentToEnd(arc1),
-///     length = 20,
-///   )
-///   |> tangentialArc(end = [-10, 0])
-///   |> close()
-///
-/// pillExtrude = extrude(pillSketch, length = 10)
-/// ```
-///
-/// ```no_run
-/// rectangleSketch = startSketchOn(XZ)
-///   |> startProfile(at = [0, 0])
-///   |> line(end = [10, 0], tag = $seg1)
-///   |> angledLine(
-///     angle = tangentToEnd(seg1),
-///     length = 10,
-///   )
-///   |> line(end = [0, 10])
-///   |> line(end = [-20, 0])
-///   |> close()
-///
-/// rectangleExtrude = extrude(rectangleSketch, length = 10)
-/// ```
-///
-/// ```no_run
-/// bottom = startSketchOn(XY)
-///   |> startProfile(at = [0, 0])
-///   |> arc(
-///        endAbsolute = [10, 10],
-///        interiorAbsolute = [5, 1],
-///        tag = $arc1,
-///      )
-///   |> angledLine(angle = tangentToEnd(arc1), length = 20)
-///   |> close()
-/// ```
-///
-/// ```no_run
-/// circSketch = startSketchOn(XY)
-///   |> circle( center= [0, 0], radius= 3 , tag= $circ)
-///
-/// triangleSketch = startSketchOn(XY)
-///   |> startProfile(at = [-5, 0])
-///   |> angledLine(angle = tangentToEnd(circ), length = 10)
-///   |> line(end = [-15, 0])
-///   |> close()
-/// ```
-#[stdlib {
-    name = "tangentToEnd",
-    unlabeled_first = true,
-    args = {
-        tag = { docs = "The line segment being queried by its tag"},
-    },
-    tags = ["sketch"]
-}]
 async fn inner_tangent_to_end(tag: &TagIdentifier, exec_state: &mut ExecState, args: Args) -> Result<f64, KclError> {
     let line = args.get_tag_engine_info(exec_state, tag)?;
     let path = line.path.clone().ok_or_else(|| {

rust/kcl-lib/std/sketch.kcl

@@ -895,3 +895,304 @@ export fn patternCircular2d(
   /// If the target was sketched on an extrusion, setting this will use the original sketch as the target, not the entire joined solid.
   useOriginal?: bool = false,
 ): [Sketch; 1+] {}
+
+/// Compute the ending point of the provided line segment.
+///
+/// ```kcl
+/// w = 15
+/// cube = startSketchOn(XY)
+///   |> startProfile(at = [0, 0])
+///   |> line(end = [w, 0], tag = $line1)
+///   |> line(end = [0, w], tag = $line2)
+///   |> line(end = [-w, 0], tag = $line3)
+///   |> line(end = [0, -w], tag = $line4)
+///   |> close()
+///   |> extrude(length = 5)
+///
+/// fn cylinder(radius, tag) {
+///   return startSketchOn(XY)
+///   |> startProfile(at = [0, 0])
+///   |> circle(radius = radius, center = segEnd(tag) )
+///   |> extrude(length = radius)
+/// }
+///
+/// cylinder(radius = 1, tag = line1)
+/// cylinder(radius = 2, tag = line2)
+/// cylinder(radius = 3, tag = line3)
+/// cylinder(radius = 4, tag = line4)
+/// ```
+@(impl = std_rust)
+export fn segEnd(
+  /// The line segment being queried by its tag.
+  @tag: tag,
+): Point2d {}
+
+/// Compute the ending point of the provided line segment along the 'x' axis.
+///
+/// ```kcl
+/// exampleSketch = startSketchOn(XZ)
+///   |> startProfile(at = [0, 0])
+///   |> line(end = [20, 0], tag = $thing)
+///   |> line(end = [0, 5])
+///   |> line(end = [segEndX(thing), 0])
+///   |> line(end = [-20, 10])
+///   |> close()
+///  
+/// example = extrude(exampleSketch, length = 5)
+/// ```
+@(impl = std_rust)
+export fn segEndX(
+  /// The line segment being queried by its tag.
+  @tag: tag,
+): number(Length) {}
+
+/// Compute the ending point of the provided line segment along the 'y' axis.
+///
+/// ```kcl
+/// exampleSketch = startSketchOn(XZ)
+///   |> startProfile(at = [0, 0])
+///   |> line(end = [20, 0])
+///   |> line(end = [0, 3], tag = $thing)
+///   |> line(end = [-10, 0])
+///   |> line(end = [0, segEndY(thing)])
+///   |> line(end = [-10, 0])
+///   |> close()
+///  
+/// example = extrude(exampleSketch, length = 5)
+/// ```
+@(impl = std_rust)
+export fn segEndY(
+  /// The line segment being queried by its tag.
+  @tag: tag,
+): number(Length) {}
+
+/// Compute the starting point of the provided line segment.
+///
+/// ```kcl
+/// w = 15
+/// cube = startSketchOn(XY)
+///   |> startProfile(at = [0, 0])
+///   |> line(end = [w, 0], tag = $line1)
+///   |> line(end = [0, w], tag = $line2)
+///   |> line(end = [-w, 0], tag = $line3)
+///   |> line(end = [0, -w], tag = $line4)
+///   |> close()
+///   |> extrude(length = 5)
+///
+/// fn cylinder(radius, tag) {
+///   return startSketchOn(XY)
+///   |> startProfile(at = [0, 0])
+///   |> circle( radius = radius, center = segStart(tag) )
+///   |> extrude(length = radius)
+/// }
+///
+/// cylinder(radius = 1, tag = line1)
+/// cylinder(radius = 2, tag = line2)
+/// cylinder(radius = 3, tag = line3)
+/// cylinder(radius = 4, tag = line4)
+/// ```
+@(impl = std_rust)
+export fn segStart(
+  /// The line segment being queried by its tag.
+  @tag: tag,
+): Point2d {}
+
+/// Compute the starting point of the provided line segment along the 'x' axis.
+///
+/// ```kcl
+/// exampleSketch = startSketchOn(XZ)
+///   |> startProfile(at = [0, 0])
+///   |> line(end = [20, 0], tag = $thing)
+///   |> line(end = [0, 5])
+///   |> line(end = [20 - segStartX(thing), 0])
+///   |> line(end = [-20, 10])
+///   |> close()
+///  
+/// example = extrude(exampleSketch, length = 5)
+/// ```
+@(impl = std_rust)
+export fn segStartX(
+  /// The line segment being queried by its tag.
+  @tag: tag,
+): number(Length) {}
+
+/// Compute the starting point of the provided line segment along the 'y' axis.
+///
+/// ```kcl
+/// exampleSketch = startSketchOn(XZ)
+///   |> startProfile(at = [0, 0])
+///   |> line(end = [20, 0])
+///   |> line(end = [0, 3], tag = $thing)
+///   |> line(end = [-10, 0])
+///   |> line(end = [0, 20-segStartY(thing)])
+///   |> line(end = [-10, 0])
+///   |> close()
+///  
+/// example = extrude(exampleSketch, length = 5)
+/// ```
+@(impl = std_rust)
+export fn segStartY(
+  /// The line segment being queried by its tag.
+  @tag: tag,
+): number(Length) {}
+
+/// Extract the 'x' axis value of the last line segment in the provided 2-d sketch.
+///
+/// ```kcl
+/// exampleSketch = startSketchOn(XZ)
+///   |> startProfile(at = [0, 0])
+///   |> line(end = [5, 0])
+///   |> line(end = [20, 5])
+///   |> line(end = [lastSegX(%), 0])
+///   |> line(end = [-15, 0])
+///   |> close()
+///
+/// example = extrude(exampleSketch, length = 5)
+/// ```
+@(impl = std_rust)
+export fn lastSegX(
+  /// The sketch whose line segment is being queried.
+  @sketch: Sketch,
+): number(Length) {}
+
+/// Extract the 'y' axis value of the last line segment in the provided 2-d sketch.
+///
+/// ```kcl
+/// exampleSketch = startSketchOn(XZ)
+///   |> startProfile(at = [0, 0])
+///   |> line(end = [5, 0])
+///   |> line(end = [20, 5])
+///   |> line(end = [0, lastSegY(%)])
+///   |> line(end = [-15, 0])
+///   |> close()
+///
+/// example = extrude(exampleSketch, length = 5)
+/// ```
+@(impl = std_rust)
+export fn lastSegY(
+  /// The sketch whose line segment is being queried.
+  @sketch: Sketch,
+): number(Length) {}
+
+/// Compute the length of the provided line segment.
+///
+/// ```kcl
+/// exampleSketch = startSketchOn(XZ)
+///   |> startProfile(at = [0, 0])
+///   |> angledLine(
+///     angle = 60,
+///     length = 10,
+///     tag = $thing,
+///   )
+///   |> tangentialArc(angle = -120, radius = 5)
+///   |> angledLine(
+///     angle = -60,
+///     length = segLen(thing),
+///   )
+///   |> close()
+///
+/// example = extrude(exampleSketch, length = 5)
+/// ```
+@(impl = std_rust)
+export fn segLen(
+  /// The line segment being queried by its tag.
+  @tag: tag,
+): number(Length) {}
+
+/// Compute the angle (in degrees) of the provided line segment.
+///
+/// ```kcl
+/// exampleSketch = startSketchOn(XZ)
+///   |> startProfile(at = [0, 0])
+///   |> line(end = [10, 0])
+///   |> line(end = [5, 10], tag = $seg01)
+///   |> line(end = [-10, 0])
+///   |> angledLine(angle = segAng(seg01), length = 10)
+///   |> line(end = [-10, 0])
+///   |> angledLine(angle = segAng(seg01), length = -15)
+///   |> close()
+///
+/// example = extrude(exampleSketch, length = 4)
+/// ```
+@(impl = std_rust)
+export fn segAng(
+  /// The line segment being queried by its tag.
+  @tag: tag,
+): number(Angle) {}
+
+/// Returns the angle coming out of the end of the segment in degrees.
+///
+/// ```kcl
+/// // Horizontal pill.
+/// pillSketch = startSketchOn(XZ)
+///   |> startProfile(at = [0, 0])
+///   |> line(end = [20, 0])
+///   |> tangentialArc(end = [0, 10], tag = $arc1)
+///   |> angledLine(
+///     angle = tangentToEnd(arc1),
+///     length = 20,
+///   )
+///   |> tangentialArc(end = [0, -10])
+///   |> close()
+///
+/// pillExtrude = extrude(pillSketch, length = 10)
+/// ```
+///
+/// ```kcl
+/// // Vertical pill.  Use absolute coordinate for arc.
+/// pillSketch = startSketchOn(XZ)
+///   |> startProfile(at = [0, 0])
+///   |> line(end = [0, 20])
+///   |> tangentialArc(endAbsolute = [10, 20], tag = $arc1)
+///   |> angledLine(
+///     angle = tangentToEnd(arc1),
+///     length = 20,
+///   )
+///   |> tangentialArc(end = [-10, 0])
+///   |> close()
+///
+/// pillExtrude = extrude(pillSketch, length = 10)
+/// ```
+///
+/// ```kcl
+/// rectangleSketch = startSketchOn(XZ)
+///   |> startProfile(at = [0, 0])
+///   |> line(end = [10, 0], tag = $seg1)
+///   |> angledLine(
+///     angle = tangentToEnd(seg1),
+///     length = 10,
+///   )
+///   |> line(end = [0, 10])
+///   |> line(end = [-20, 0])
+///   |> close()
+///
+/// rectangleExtrude = extrude(rectangleSketch, length = 10)
+/// ```
+///
+/// ```kcl
+/// bottom = startSketchOn(XY)
+///   |> startProfile(at = [0, 0])
+///   |> arc(
+///        endAbsolute = [10, 10],
+///        interiorAbsolute = [5, 1],
+///        tag = $arc1,
+///      )
+///   |> angledLine(angle = tangentToEnd(arc1), length = 20)
+///   |> close()
+/// ```
+///
+/// ```kcl
+/// circSketch = startSketchOn(XY)
+///   |> circle(center = [0, 0], radius= 3, tag = $circ)
+///
+/// triangleSketch = startSketchOn(XY)
+///   |> startProfile(at = [-5, 0])
+///   |> angledLine(angle = tangentToEnd(circ), length = 10)
+///   |> line(end = [-15, 0])
+///   |> close()
+/// ```
+@(impl = std_rust)
+export fn tangentToEnd(
+  /// The line segment being queried by its tag.
+  @tag: tag,
+): number(Angle) {}