analysis

analysis/src/hir.rs

@@ -0,0 +1,7 @@
+pub struct Hir<'hir> {
+    x: &'hir (),
+}
+
+pub struct ExternalDecl;
+
+pub struct FunctionDef;

analysis/src/lib.rs

@@ -1,6 +1,5 @@
 #![allow(dead_code)] // TODO: no
 #![warn(rust_2018_idioms)]
 
-struct Ctx<P> {
-    parser: P,
-}
+mod hir;
+mod lower;

analysis/src/lower.rs

@@ -0,0 +1,31 @@
+use parser::{
+    ast::{self, Ident},
+    Span,
+};
+use rustc_hash::FxHashMap;
+
+use crate::hir;
+
+pub struct LowerCtx<'hir> {
+    hir_arena: &'hir bumpalo::Bump,
+    global_symbols: FxHashMap<Ident, &'hir hir::ExternalDecl>,
+}
+
+impl<'hir> LowerCtx<'hir> {
+    pub fn lower_translation_unit(&mut self, unit: &ast::TranslationUnit) -> hir::Hir<'hir> {
+        for decl in unit {}
+
+        todo!()
+    }
+
+    fn lower_decl(&mut self, decl: &ast::ExternalDecl, span: Span) -> hir::ExternalDecl {
+        match decl {
+            ast::ExternalDecl::Decl(_) => todo!(),
+            ast::ExternalDecl::FunctionDef(func) => todo!(),
+        }
+    }
+
+    fn lower_function_def(&mut self, def: &ast::FunctionDef, span: Span) -> hir::FunctionDef {
+        todo!()
+    }
+}