1 files changed, 0 insertions, 148 deletions
diff --git a/src/model/mod.rs b/src/model/mod.rs
deleted file mode 100644
index ee940236..00000000
--- a/src/model/mod.rs
+++ /dev/null
@@ -1,148 +0,0 @@
-//! The document model.
-
-mod content;
-mod element;
-mod introspect;
-mod label;
-mod realize;
-mod selector;
-mod styles;
-
-#[doc(inline)]
-pub use typst_macros::element;
-
-pub use self::content::{Content, MetaElem, PlainText};
-pub use self::element::{Construct, ElemFunc, Element, NativeElemFunc, Set};
-pub use self::introspect::{Introspector, Location, Locator};
-pub use self::label::{Label, Unlabellable};
-pub use self::realize::{
-    applicable, realize, Behave, Behaviour, Finalize, Guard, Locatable, Show, Synthesize,
-};
-pub use self::selector::{LocatableSelector, Selector, ShowableSelector};
-pub use self::styles::{
-    Fold, Property, Recipe, Resolve, Style, StyleChain, StyleVec, StyleVecBuilder,
-    Styles, Transform,
-};
-
-use std::mem::ManuallyDrop;
-
-use comemo::{Track, Tracked, TrackedMut, Validate};
-
-use crate::diag::{SourceError, SourceResult};
-use crate::doc::Document;
-use crate::eval::Tracer;
-use crate::World;
-
-/// Typeset content into a fully layouted document.
-#[comemo::memoize]
-#[tracing::instrument(skip(world, tracer, content))]
-pub fn typeset(
-    world: Tracked<dyn World + '_>,
-    mut tracer: TrackedMut<Tracer>,
-    content: &Content,
-) -> SourceResult<Document> {
-    tracing::info!("Starting typesetting");
-
-    let library = world.library();
-    let styles = StyleChain::new(&library.styles);
-
-    let mut iter = 0;
-    let mut document;
-    let mut delayed;
-
-    // We need `ManuallyDrop` until this lands in stable:
-    // https://github.com/rust-lang/rust/issues/70919
-    let mut introspector = ManuallyDrop::new(Introspector::new(&[]));
-
-    // Relayout until all introspections stabilize.
-    // If that doesn't happen within five attempts, we give up.
-    loop {
-        tracing::info!("Layout iteration {iter}");
-
-        delayed = DelayedErrors::default();
-
-        let constraint = <Introspector as Validate>::Constraint::new();
-        let mut locator = Locator::new();
-        let mut vt = Vt {
-            world,
-            tracer: TrackedMut::reborrow_mut(&mut tracer),
-            locator: &mut locator,
-            introspector: introspector.track_with(&constraint),
-            delayed: delayed.track_mut(),
-        };
-
-        // Layout!
-        let result = (library.items.layout)(&mut vt, content, styles)?;
-
-        // Drop the old introspector.
-        ManuallyDrop::into_inner(introspector);
-
-        // Only now assign the document and construct the new introspector.
-        document = result;
-        introspector = ManuallyDrop::new(Introspector::new(&document.pages));
-        iter += 1;
-
-        if iter >= 5 || introspector.validate(&constraint) {
-            break;
-        }
-    }
-
-    // Drop the introspector.
-    ManuallyDrop::into_inner(introspector);
-
-    // Promote delayed errors.
-    if !delayed.0.is_empty() {
-        return Err(Box::new(delayed.0));
-    }
-
-    Ok(document)
-}
-
-/// A virtual typesetter.
-///
-/// Holds the state needed to [typeset] content.
-pub struct Vt<'a> {
-    /// The compilation environment.
-    pub world: Tracked<'a, dyn World + 'a>,
-    /// Provides access to information about the document.
-    pub introspector: Tracked<'a, Introspector>,
-    /// Provides stable identities to elements.
-    pub locator: &'a mut Locator<'a>,
-    /// Delayed errors that do not immediately terminate execution.
-    pub delayed: TrackedMut<'a, DelayedErrors>,
-    /// The tracer for inspection of the values an expression produces.
-    pub tracer: TrackedMut<'a, Tracer>,
-}
-
-impl Vt<'_> {
-    /// Perform a fallible operation that does not immediately terminate further
-    /// execution. Instead it produces a delayed error that is only promoted to
-    /// a fatal one if it remains at the end of the introspection loop.
-    pub fn delayed<F, T>(&mut self, f: F) -> T
-    where
-        F: FnOnce(&mut Self) -> SourceResult<T>,
-        T: Default,
-    {
-        match f(self) {
-            Ok(value) => value,
-            Err(errors) => {
-                for error in *errors {
-                    self.delayed.push(error);
-                }
-                T::default()
-            }
-        }
-    }
-}
-
-/// Holds delayed errors.
-#[derive(Default, Clone)]
-pub struct DelayedErrors(Vec<SourceError>);
-
-#[comemo::track]
-impl DelayedErrors {
-    /// Push a delayed error.
-    fn push(&mut self, error: SourceError) {
-        self.0.push(error);
-    }
-}