From 8d13864440ba8b6ede1097c79b28e4981caf714a Mon Sep 17 00:00:00 2001
From: Jonas Schievink <jonasschievink@gmail.com>
Date: Fri, 21 May 2021 23:45:27 +0200
Subject: Add an ItemTree pretty-printer

---
 crates/hir_def/src/item_tree.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'crates/hir_def/src/item_tree.rs')

diff --git a/crates/hir_def/src/item_tree.rs b/crates/hir_def/src/item_tree.rs
index 7440e7d29..528270d49 100644
--- a/crates/hir_def/src/item_tree.rs
+++ b/crates/hir_def/src/item_tree.rs
@@ -1,6 +1,9 @@
 //! A simplified AST that only contains items.
 
 mod lower;
+mod pretty;
+#[cfg(test)]
+mod tests;
 
 use std::{
     any::type_name,
@@ -205,6 +208,10 @@ impl ItemTree {
         }
     }
 
+    pub fn pretty_print(&self) -> String {
+        pretty::print_item_tree(self)
+    }
+
     fn data(&self) -> &ItemTreeData {
         self.data.as_ref().expect("attempted to access data of empty ItemTree")
     }
@@ -776,6 +783,10 @@ impl<T> IdRange<T> {
     fn new(range: Range<Idx<T>>) -> Self {
         Self { range: range.start.into_raw().into()..range.end.into_raw().into(), _p: PhantomData }
     }
+
+    fn is_empty(&self) -> bool {
+        self.range.is_empty()
+    }
 }
 
 impl<T> Iterator for IdRange<T> {
-- 
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