perf(es/codegen): Use Vec<T> from swc_allocator

.changeset/hip-spiders-own.md

@@ -0,0 +1,8 @@
+---
+swc_compiler_base: patch
+swc_ecma_codegen: patch
+swc_ecma_transforms_react: patch
+swc_fast_ts_strip: patch
+---
+
+perf(es/codegen): Use `Vec<T>` from `swc_allocator`

crates/swc_compiler_base/src/lib.rs

@@ -9,6 +9,7 @@ use once_cell::sync::Lazy;
 use rustc_hash::FxHashMap;
 #[allow(unused)]
 use serde::{Deserialize, Serialize};
+use swc_allocator::maybe::vec::Vec;
 use swc_atoms::JsWord;
 use swc_common::{
     collections::AHashMap,

crates/swc_ecma_codegen/Cargo.toml

@@ -37,6 +37,7 @@ codspeed-criterion-compat = { workspace = true }
 criterion                 = { workspace = true }
 serde_json                = { workspace = true }
 
+swc_allocator = { version = "0.1.7", path = "../swc_allocator" }
 swc_common = { version = "0.36.0", path = "../swc_common", features = [
   "sourcemap",
 ] }

crates/swc_ecma_codegen/benches/bench.rs

@@ -1,6 +1,7 @@
 extern crate swc_malloc;
 
 use codspeed_criterion_compat::{black_box, criterion_group, criterion_main, Bencher, Criterion};
+use swc_allocator::{maybe::vec::Vec, Allocator};
 use swc_common::FileName;
 use swc_ecma_codegen::Emitter;
 use swc_ecma_parser::{Parser, StringInput, Syntax};
@@ -94,6 +95,9 @@ fn bench_emitter(b: &mut Bencher, s: &str) {
         }
 
         b.iter(|| {
+            let alloc = Allocator::default();
+            let mut _guard = unsafe { alloc.guard() };
+
             let mut src_map_buf = Vec::new();
             let mut buf = Vec::new();
             {

crates/swc_ecma_codegen/benches/with_parse.rs

@@ -1,6 +1,7 @@
 extern crate swc_malloc;
 
 use codspeed_criterion_compat::{black_box, criterion_group, criterion_main, Bencher, Criterion};
+use swc_allocator::maybe::vec::Vec;
 use swc_common::FileName;
 use swc_ecma_codegen::Emitter;
 use swc_ecma_parser::{Parser, StringInput, Syntax};

crates/swc_ecma_codegen/examples/sourcemap.rs

@@ -9,6 +9,7 @@ use std::{
     time::Instant,
 };
 
+use swc_allocator::maybe::vec::Vec;
 use swc_common::input::SourceFileInput;
 use swc_ecma_ast::*;
 use swc_ecma_codegen::{text_writer::JsWriter, Emitter};

crates/swc_ecma_codegen/src/text_writer/basic_impl.rs

@@ -1,6 +1,7 @@
 use std::io::Write;
 
 use rustc_hash::FxHashSet;
+use swc_allocator::maybe::vec::Vec;
 use swc_common::{sync::Lrc, BytePos, LineCol, SourceMap, Span};
 
 use super::{Result, WriteJs};

crates/swc_ecma_codegen/tests/sourcemap.rs

@@ -3,6 +3,7 @@ use std::{fs::read_to_string, path::PathBuf};
 use base64::prelude::{Engine, BASE64_STANDARD};
 use rustc_hash::FxHashSet;
 use sourcemap::SourceMap;
+use swc_allocator::maybe::vec::Vec;
 use swc_common::{comments::SingleThreadedComments, source_map::SourceMapGenConfig};
 use swc_ecma_ast::EsVersion;
 use swc_ecma_codegen::{text_writer::WriteJs, Emitter};

crates/swc_ecma_transforms_react/src/pure_annotations/tests.rs

@@ -1,3 +1,4 @@
+use swc_allocator::maybe::vec::Vec;
 use swc_common::{comments::SingleThreadedComments, sync::Lrc, FileName, Mark, SourceMap};
 use swc_ecma_codegen::{text_writer::JsWriter, Emitter};
 use swc_ecma_parser::{Parser, StringInput};

crates/swc_fast_ts_strip/src/lib.rs

@@ -2,6 +2,7 @@ use std::{cell::RefCell, rc::Rc};
 
 use anyhow::{Context, Error};
 use serde::{Deserialize, Serialize};
+use swc_allocator::maybe::vec::Vec;
 use swc_common::{
     comments::SingleThreadedComments,
     errors::{Handler, HANDLER},