1 files changed, 0 insertions, 134 deletions
diff --git a/src/model/element.rs b/src/model/element.rs
deleted file mode 100644
index c673ee41..00000000
--- a/src/model/element.rs
+++ /dev/null
@@ -1,134 +0,0 @@
-use std::any::TypeId;
-use std::fmt::{self, Debug, Formatter};
-use std::hash::{Hash, Hasher};
-
-use once_cell::sync::Lazy;
-
-use super::{Content, Selector, Styles};
-use crate::diag::SourceResult;
-use crate::eval::{cast, Args, Dict, Func, FuncInfo, Value, Vm};
-
-/// A document element.
-pub trait Element: Construct + Set + Sized + 'static {
-    /// Pack the element into type-erased content.
-    fn pack(self) -> Content;
-
-    /// Extract this element from type-erased content.
-    fn unpack(content: &Content) -> Option<&Self>;
-
-    /// The element's function.
-    fn func() -> ElemFunc;
-}
-
-/// An element's constructor function.
-pub trait Construct {
-    /// Construct an element from the arguments.
-    ///
-    /// This is passed only the arguments that remain after execution of the
-    /// element's set rule.
-    fn construct(vm: &mut Vm, args: &mut Args) -> SourceResult<Content>;
-}
-
-/// An element's set rule.
-pub trait Set {
-    /// Parse relevant arguments into style properties for this element.
-    fn set(args: &mut Args) -> SourceResult<Styles>;
-}
-
-/// An element's function.
-#[derive(Copy, Clone)]
-pub struct ElemFunc(pub(super) &'static NativeElemFunc);
-
-impl ElemFunc {
-    /// The function's name.
-    pub fn name(self) -> &'static str {
-        self.0.name
-    }
-
-    /// Apply the given arguments to the function.
-    pub fn with(self, args: Args) -> Func {
-        Func::from(self).with(args)
-    }
-
-    /// Extract details about the function.
-    pub fn info(&self) -> &'static FuncInfo {
-        &self.0.info
-    }
-
-    /// Construct an element.
-    pub fn construct(self, vm: &mut Vm, args: &mut Args) -> SourceResult<Content> {
-        (self.0.construct)(vm, args)
-    }
-
-    /// Whether the contained element has the given capability.
-    pub fn can<C>(&self) -> bool
-    where
-        C: ?Sized + 'static,
-    {
-        (self.0.vtable)(TypeId::of::<C>()).is_some()
-    }
-
-    /// Create a selector for elements of this function.
-    pub fn select(self) -> Selector {
-        Selector::Elem(self, None)
-    }
-
-    /// Create a selector for elements of this function, filtering for those
-    /// whose [fields](super::Content::field) match the given arguments.
-    pub fn where_(self, fields: Dict) -> Selector {
-        Selector::Elem(self, Some(fields))
-    }
-
-    /// Execute the set rule for the element and return the resulting style map.
-    pub fn set(self, mut args: Args) -> SourceResult<Styles> {
-        let styles = (self.0.set)(&mut args)?;
-        args.finish()?;
-        Ok(styles)
-    }
-}
-
-impl Debug for ElemFunc {
-    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
-        f.pad(self.name())
-    }
-}
-
-impl Eq for ElemFunc {}
-
-impl PartialEq for ElemFunc {
-    fn eq(&self, other: &Self) -> bool {
-        std::ptr::eq(self.0, other.0)
-    }
-}
-
-impl Hash for ElemFunc {
-    fn hash<H: Hasher>(&self, state: &mut H) {
-        state.write_usize(self.0 as *const _ as usize);
-    }
-}
-
-cast! {
-    ElemFunc,
-    self => Value::Func(self.into()),
-    v: Func => v.element().ok_or("expected element function")?,
-}
-
-impl From<&'static NativeElemFunc> for ElemFunc {
-    fn from(native: &'static NativeElemFunc) -> Self {
-        Self(native)
-    }
-}
-
-/// An element function backed by a Rust type.
-pub struct NativeElemFunc {
-    /// The element's name.
-    pub name: &'static str,
-    /// The element's vtable for capability dispatch.
-    pub vtable: fn(of: TypeId) -> Option<*const ()>,
-    /// The element's constructor.
-    pub construct: fn(&mut Vm, &mut Args) -> SourceResult<Content>,
-    /// The element's set rule.
-    pub set: fn(&mut Args) -> SourceResult<Styles>,
-    /// Details about the function.
-    pub info: Lazy<FuncInfo>,
-}