2 files changed, 27 insertions, 15 deletions

diff --git a/crates/rust-analyzer/src/bin/args.rs b/crates/rust-analyzer/src/bin/args.rs
index 8c0f4df8b..85c2e415a 100644
--- a/crates/rust-analyzer/src/bin/args.rs
+++ b/crates/rust-analyzer/src/bin/args.rs
@@ -3,13 +3,14 @@
 //! If run started args, we run the LSP server loop. With a subcommand, we do a
 //! one-time batch processing.
 
+use std::{env, fmt::Write, path::PathBuf};
+
 use anyhow::{bail, Result};
 use pico_args::Arguments;
+use ra_db::AbsPathBuf;
 use ra_ssr::{SsrPattern, SsrRule};
 use rust_analyzer::cli::{BenchWhat, Position, Verbosity};
 
-use std::{fmt::Write, path::PathBuf};
-
 pub(crate) struct Args {
     pub(crate) verbosity: Verbosity,
     pub(crate) command: Command,
@@ -240,7 +241,10 @@ ARGS:
                 let complete_path: Option<Position> = matches.opt_value_from_str("--complete")?;
                 let goto_def_path: Option<Position> = matches.opt_value_from_str("--goto-def")?;
                 let what = match (highlight_path, complete_path, goto_def_path) {
-                    (Some(path), None, None) => BenchWhat::Highlight { path: path.into() },
+                    (Some(path), None, None) => {
+                        let path = env::current_dir().unwrap().join(path);
+                        BenchWhat::Highlight { path: AbsPathBuf::assert(path) }
+                    }
                     (None, Some(position), None) => BenchWhat::Complete(position),
                     (None, None, Some(position)) => BenchWhat::GotoDef(position),
                     _ => panic!(
diff --git a/crates/rust-analyzer/src/cli/analysis_bench.rs b/crates/rust-analyzer/src/cli/analysis_bench.rs
index 930375d3e..90990d3e7 100644
--- a/crates/rust-analyzer/src/cli/analysis_bench.rs
+++ b/crates/rust-analyzer/src/cli/analysis_bench.rs
@@ -1,12 +1,6 @@
 //! Benchmark operations like highlighting or goto definition.
 
-use std::{
-    convert::TryFrom,
-    path::{Path, PathBuf},
-    str::FromStr,
-    sync::Arc,
-    time::Instant,
-};
+use std::{env, path::Path, str::FromStr, sync::Arc, time::Instant};
 
 use anyhow::{format_err, Result};
 use ra_db::{
@@ -18,13 +12,13 @@ use ra_ide::{Analysis, AnalysisChange, AnalysisHost, CompletionConfig, FilePosit
 use crate::cli::{load_cargo::load_cargo, Verbosity};
 
 pub enum BenchWhat {
-    Highlight { path: PathBuf },
+    Highlight { path: AbsPathBuf },
     Complete(Position),
     GotoDef(Position),
 }
 
 pub struct Position {
-    pub path: PathBuf,
+    pub path: AbsPathBuf,
     pub line: u32,
     pub column: u32,
 }
@@ -34,7 +28,9 @@ impl FromStr for Position {
     fn from_str(s: &str) -> Result<Self> {
         let (path_line, column) = rsplit_at_char(s, ':')?;
         let (path, line) = rsplit_at_char(path_line, ':')?;
-        Ok(Position { path: path.into(), line: line.parse()?, column: column.parse()? })
+        let path = env::current_dir().unwrap().join(path);
+        let path = AbsPathBuf::assert(path);
+        Ok(Position { path, line: line.parse()?, column: column.parse()? })
     }
 }
 
@@ -62,8 +58,7 @@ pub fn analysis_bench(
             BenchWhat::Highlight { path } => path,
             BenchWhat::Complete(pos) | BenchWhat::GotoDef(pos) => &pos.path,
         };
-        let path = AbsPathBuf::try_from(path.clone()).unwrap();
-        let path = path.into();
+        let path = path.clone().into();
         vfs.file_id(&path).ok_or_else(|| format_err!("Can't find {}", path))?
     };
 
@@ -141,6 +136,19 @@ fn do_work<F: Fn(&Analysis) -> T, T>(host: &mut AnalysisHost, file_id: FileId, w
     }
     {
         let start = Instant::now();
+        eprint!("item change:    ");
+        {
+            let mut text = host.analysis().file_text(file_id).unwrap().to_string();
+            text.push_str("\npub fn _dummy() {}\n");
+            let mut change = AnalysisChange::new();
+            change.change_file(file_id, Some(Arc::new(text)));
+            host.apply_change(change);
+        }
+        work(&host.analysis());
+        eprintln!("{:?}", start.elapsed());
+    }
+    {
+        let start = Instant::now();
         eprint!("const change:   ");
         host.raw_database_mut().salsa_runtime_mut().synthetic_write(Durability::HIGH);
         let res = work(&host.analysis());