From 32c8ea93074286f3111317fe3077698c0afe929f Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Sat, 25 Aug 2018 12:44:26 +0300
Subject: Move atom edit to libsyntax2

---
 crates/libsyntax2/src/lib.rs | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

(limited to 'crates/libsyntax2/src/lib.rs')

diff --git a/crates/libsyntax2/src/lib.rs b/crates/libsyntax2/src/lib.rs
index 01e155855..86fdbd23f 100644
--- a/crates/libsyntax2/src/lib.rs
+++ b/crates/libsyntax2/src/lib.rs
@@ -64,7 +64,7 @@ impl File {
         validate_block_structure(root.borrowed());
         File { root }
     }
-    pub fn parse(text: &str) -> Self {
+    pub fn parse(text: &str) -> File {
         let tokens = tokenize(&text);
         let (root, errors) = parser_impl::parse::<yellow::GreenBuilder>(text, &tokens);
         File::new(root, errors)
@@ -112,3 +112,23 @@ fn validate_block_structure(root: SyntaxNodeRef) {
         }
     }
 }
+
+#[derive(Debug, Clone)]
+pub struct AtomEdit {
+    pub delete: TextRange,
+    pub insert: String,
+}
+
+impl AtomEdit {
+    pub fn replace(range: TextRange, replace_with: String) -> AtomEdit {
+        AtomEdit { delete: range, insert: replace_with }
+    }
+
+    pub fn delete(range: TextRange) -> AtomEdit {
+        AtomEdit::replace(range, String::new())
+    }
+
+    pub fn insert(offset: TextUnit, text: String) -> AtomEdit {
+        AtomEdit::replace(TextRange::offset_len(offset, 0.into()), text)
+    }
+}
-- 
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