Add benchmark script

* Structure `cli` crate as both a library and an executable, so that
benchmarks can import code from the crate.
* Import macros in the Rust 2018 style.

cli/src/tests/corpus_test.rs

@@ -5,6 +5,7 @@ use super::helpers::scope_sequence::ScopeSequence;
 use crate::generate;
 use crate::test::{parse_tests, print_diff, print_diff_key, TestEntry};
 use crate::util;
+use lazy_static::lazy_static;
 use std::{env, fs, time, usize};
 use tree_sitter::{InputEdit, LogType, Node, Parser, Point, Tree};
 
@@ -373,7 +374,10 @@ fn check_consistent_sizes(tree: &Tree, input: &Vec<u8>) {
 
         assert!(start_byte <= end_byte);
         assert!(start_point <= end_point);
-        assert_eq!(start_byte, line_offsets[start_point.row] + start_point.column);
+        assert_eq!(
+            start_byte,
+            line_offsets[start_point.row] + start_point.column
+        );
         assert_eq!(end_byte, line_offsets[end_point.row] + end_point.column);
 
         let mut last_child_end_byte = start_byte;

cli/src/tests/helpers/allocations.rs

@@ -1,6 +1,7 @@
 #![cfg(test)]
 #![allow(dead_code)]
 
+use lazy_static::lazy_static;
 use spin::Mutex;
 use std::collections::HashMap;
 use std::os::raw::{c_ulong, c_void};
@@ -46,10 +47,7 @@ pub fn stop_recording() {
             .map(|e| e.1)
             .collect::<Vec<_>>();
         allocation_indices.sort_unstable();
-        panic!(
-            "Leaked allocation indices: {:?}",
-            allocation_indices
-        );
+        panic!("Leaked allocation indices: {:?}", allocation_indices);
     }
 }
 

cli/src/tests/helpers/dirs.rs

@@ -0,0 +1,11 @@
+lazy_static! {
+    static ref ROOT_DIR: PathBuf = PathBuf::from(env!("CARGO_MANIFEST_DIR")).parent().unwrap().to_owned();
+    static ref FIXTURES_DIR: PathBuf = ROOT_DIR.join("test").join("fixtures");
+    static ref HEADER_DIR: PathBuf = ROOT_DIR.join("lib").join("include");
+    static ref GRAMMARS_DIR: PathBuf = ROOT_DIR.join("test").join("fixtures").join("grammars");
+    static ref SCRATCH_DIR: PathBuf = {
+        let result = ROOT_DIR.join("target").join("scratch");
+        fs::create_dir_all(&result).unwrap();
+        result
+    };
+}

cli/src/tests/helpers/fixtures.rs

@@ -1,18 +1,12 @@
 use crate::loader::Loader;
+use lazy_static::lazy_static;
 use std::fs;
 use std::path::{Path, PathBuf};
 use tree_sitter::Language;
 
+include!("./dirs.rs");
+
 lazy_static! {
-    static ref ROOT_DIR: PathBuf = [env!("CARGO_MANIFEST_DIR"), ".."].iter().collect();
-    static ref FIXTURES_DIR: PathBuf = ROOT_DIR.join("test").join("fixtures");
-    static ref HEADER_DIR: PathBuf = ROOT_DIR.join("lib").join("include");
-    static ref GRAMMARS_DIR: PathBuf = ROOT_DIR.join("test").join("fixtures").join("grammars");
-    static ref SCRATCH_DIR: PathBuf = {
-        let result = ROOT_DIR.join("target").join("scratch");
-        fs::create_dir_all(&result).unwrap();
-        result
-    };
     static ref TEST_LOADER: Loader = Loader::new(SCRATCH_DIR.clone());
 }
 

cli/src/tests/parser_api_test.rs

@@ -1,4 +1,5 @@
 use super::helpers::fixtures::get_language;
+use serde_derive::Deserialize;
 use std::thread;
 use tree_sitter::{InputEdit, Language, LogType, Parser, Point, PropertySheet};