lints

commit 62b33385d9444a44bfbcd18bcf4661d919385c77
parent f515fb8e22d78fea59d7d8212ddf783dc0594315
Author: Zack Newman <zack@philomathiclife.com>
Date:   Wed, 28 Jan 2026 20:56:13 -0700

improve integration test. improve buffering strategy

Diffstat:
M
README.md
 | 
2
+-
M
src/parse.rs
 | 
3
++-
M
src/rustc.rs
 | 
6
+++++-
M
tests/parse_1_93_0.rs
 | 
22
++++++++++------------

4 files changed, 18 insertions(+), 15 deletions(-)
diff --git a/README.md b/README.md
@@ -47,7 +47,7 @@ of lints).
 [zack@laptop ~]$ rustc -V
 rustc 1.93.0 (254b59607 2026-01-19)
 [zack@laptop ~]$ lints version
-lints 0.1.0
+lints 0.2.0
 [zack@laptop ~]$ lints
 deprecated-safe = { level = "deny", priority = -1 }
 future-incompatible = { level = "deny", priority = -1 }
diff --git a/src/parse.rs b/src/parse.rs
@@ -68,7 +68,8 @@ pub(crate) enum E<'a> {
 const START: &str = "name  default  meaning
 ----  -------  -------";
 /// Lines between lints and lint groups.
-const MIDDLE: &str = "name  sub-lints
+const MIDDLE: &str = "
+name  sub-lints
 ----  ---------";
 impl E<'_> {
     /// Writes `self` into `stderr`.
diff --git a/src/rustc.rs b/src/rustc.rs
@@ -192,7 +192,11 @@ fn priv_sep_stdin() -> Result<(), E> {
 pub(crate) fn execute(read_stdin: bool) -> Result<Vec<u8>, E> {
     if read_stdin {
         priv_sep_stdin().and_then(|()| {
-            let mut output = Vec::with_capacity(0x8000);
+            #[cfg(target_pointer_width = "16")]
+            let cap = 0x2000;
+            #[cfg(not(target_pointer_width = "16"))]
+            let cap = 0x10000;
+            let mut output = Vec::with_capacity(cap);
             io::stdin()
                 .lock()
                 .read_to_end(&mut output)
diff --git a/tests/parse_1_93_0.rs b/tests/parse_1_93_0.rs
@@ -6,7 +6,6 @@ use std::{
     env,
     io::Write as _,
     process::{Command, Stdio},
-    thread,
 };
 #[expect(clippy::too_many_lines, reason = "rustc -Whelp output is large")]
 #[expect(clippy::tests_outside_test_module, reason = "false positive")]
@@ -335,16 +334,15 @@ variant-size-differences = { level = \"deny\", priority = -1 }
             .stdin(Stdio::piped())
             .stdout(Stdio::piped())
             .spawn()
-            .is_ok_and(|mut child| child.stdin.take().is_some_and(|mut stdin| {
-                let handle = thread::spawn(move || {
-                    assert!(stdin.write_all(RUSTC_1_93_0).is_ok_and(|()| true));
-                });
-                child.wait_with_output().is_ok_and(|output| {
-                    handle.is_finished()
-                        && output.status.code() == Some(0i32)
-                        && output.stderr.is_empty()
-                        && output.stdout == EXPECTED
-                })
-            }))
+            .is_ok_and(|mut child| child.stdin.take().is_some_and(|mut stdin| stdin
+                .write_all(RUSTC_1_93_0)
+                .is_ok_and(|()| {
+                    drop(stdin);
+                    child.wait_with_output().is_ok_and(|output| {
+                        output.status.code() == Some(0i32)
+                            && output.stderr.is_empty()
+                            && output.stdout == EXPECTED
+                    })
+                })))
     );
 }