bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
perf: avoid allocating by just slicing.
Signed-off-by: Dezhi Wu <[email protected]>
Browse Source
Dezhi Wu 2021-10-26
parent b7b9cd5 · commit 31af94b
Diffstat
-rw-r--r--crates/rust-analyzer/src/markdown.rs13
1 files changed, 5 insertions, 8 deletions
diff --git a/crates/rust-analyzer/src/markdown.rs b/crates/rust-analyzer/src/markdown.rs
index 9ffd085b0c..59c904f86e 100644
--- a/crates/rust-analyzer/src/markdown.rs
+++ b/crates/rust-analyzer/src/markdown.rs
@@ -1,6 +1,4 @@
//! Transforms markdown
-use std::borrow::Cow;
-
use ide_db::helpers::rust_doc::is_rust_fence;
const RUSTDOC_FENCE: &str = "```";
@@ -10,9 +8,8 @@ pub(crate) fn format_docs(src: &str) -> String {
let mut in_code_block = false;
let mut is_rust = false;
- for line in src.lines() {
- let mut line = Cow::from(line);
- if in_code_block && is_rust && code_line_ignored_by_rustdoc(&line) {
+ for mut line in src.lines() {
+ if in_code_block && is_rust && code_line_ignored_by_rustdoc(line) {
continue;
}
@@ -23,15 +20,15 @@ pub(crate) fn format_docs(src: &str) -> String {
is_rust = is_rust_fence(header);
if is_rust {
- line = Cow::Borrowed("```rust");
+ line = "```rust";
}
}
}
if in_code_block {
- let trimmed = line.trim();
+ let trimmed = line.trim_start();
if trimmed.starts_with("##") {
- line = Cow::Owned(line.replacen("##", "#", 1));
+ line = &trimmed[1..];
}
}