From 63eba9d5c697e466d952588568719d0de1244ae4 Mon Sep 17 00:00:00 2001
From: Akshay <nerdy@peppe.rs>
Date: Sat, 6 Nov 2021 14:50:58 +0530
Subject: introduce ReadOnlyVfs::singleton

create a VFS with exactly one file, handy for operations involving a
single buffer or file
---
 vfs/src/lib.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/vfs/src/lib.rs b/vfs/src/lib.rs
index 98bd1c3..8b5df79 100644
--- a/vfs/src/lib.rs
+++ b/vfs/src/lib.rs
@@ -36,6 +36,11 @@ pub struct ReadOnlyVfs {
 }
 
 impl ReadOnlyVfs {
+    pub fn singleton<P: AsRef<Path>>(path: P, contents: &[u8]) -> Self {
+        let mut vfs = ReadOnlyVfs::default();
+        vfs.set_file_contents(path, contents);
+        vfs
+    }
     pub fn alloc_file_id<P: AsRef<Path>>(&mut self, path: P) -> FileId {
         self.interner.intern(path.as_ref().to_owned())
     }
-- 
cgit v1.2.3