From 96f72eee6c6b595164c7a0576c407d7a590661db Mon Sep 17 00:00:00 2001
From: Laurenz <laurmaedje@gmail.com>
Date: Thu, 24 Nov 2022 17:51:07 +0100
Subject: Separate typesetting and compilation

---
 src/lib.rs           | 12 +++++-------
 src/model/mod.rs     |  2 ++
 src/model/typeset.rs | 17 +++++++++++++++++
 3 files changed, 24 insertions(+), 7 deletions(-)
 create mode 100644 src/model/typeset.rs

(limited to 'src')

diff --git a/src/lib.rs b/src/lib.rs
index 75200144..4607cd0c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -49,16 +49,16 @@ use comemo::{Prehashed, Track};
 use crate::diag::{FileResult, SourceResult};
 use crate::font::{Font, FontBook};
 use crate::frame::Frame;
-use crate::model::{Library, Route, StyleChain};
+use crate::model::{Library, Route};
 use crate::syntax::{Source, SourceId};
 use crate::util::Buffer;
 
-/// Typeset a source file into a collection of layouted frames.
+/// Compile a source file into a collection of layouted frames.
 ///
 /// Returns either a vector of frames representing individual pages or
 /// diagnostics in the form of a vector of error message with file and span
 /// information.
-pub fn typeset(
+pub fn compile(
     world: &(dyn World + 'static),
     source: &Source,
 ) -> SourceResult<Vec<Frame>> {
@@ -66,10 +66,8 @@ pub fn typeset(
     let route = Route::default();
     let module = model::eval(world.track(), route.track(), source)?;
 
-    // Layout the module's contents.
-    let library = world.library();
-    let styles = StyleChain::with_root(&library.styles);
-    (library.items.layout)(&module.content, world.track(), styles)
+    // Typeset the module's contents.
+    model::typeset(world.track(), &module.content)
 }
 
 /// The environment in which typesetting occurs.
diff --git a/src/model/mod.rs b/src/model/mod.rs
index 93e33d5c..f5c1e6dd 100644
--- a/src/model/mod.rs
+++ b/src/model/mod.rs
@@ -21,6 +21,7 @@ mod func;
 mod methods;
 mod ops;
 mod scope;
+mod typeset;
 mod vm;
 
 #[doc(hidden)]
@@ -38,5 +39,6 @@ pub use self::library::*;
 pub use self::scope::*;
 pub use self::str::*;
 pub use self::styles::*;
+pub use self::typeset::*;
 pub use self::value::*;
 pub use self::vm::*;
diff --git a/src/model/typeset.rs b/src/model/typeset.rs
new file mode 100644
index 00000000..2026bf99
--- /dev/null
+++ b/src/model/typeset.rs
@@ -0,0 +1,17 @@
+use comemo::Tracked;
+
+use super::{Content, StyleChain};
+use crate::diag::SourceResult;
+use crate::frame::Frame;
+use crate::World;
+
+/// Typeset content into a collection of layouted frames.
+///
+/// Returns either a vector of frames representing individual pages or
+/// diagnostics in the form of a vector of error message with file and span
+/// information.
+pub fn typeset(world: Tracked<dyn World>, content: &Content) -> SourceResult<Vec<Frame>> {
+    let library = world.library();
+    let styles = StyleChain::with_root(&library.styles);
+    (library.items.layout)(content, world, styles)
+}
-- 
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