No STD build

Author: LemonHX

Cargo.lock

@@ -24,40 +24,44 @@ brimstone_icu_collections = { path = "src/brimstone_icu_collections" }
 brimstone_macros = { path = "src/brimstone_macros" }
 brimstone_serialized_heap = { path = "src/brimstone_serialized_heap" }
 
+
 # External Crates
+oxc = { version = "0.105.0", features = [] }
+parking_lot = "0.12.1"
+once_cell = "1.21.3"
+
 allocator-api2 = "0.2.21"
-bitflags = "2.1.0"
-bumpalo = "3.17.0"
-clap = "4.0.29"
-criterion = "0.5.1"
-half = "2.4.1"
-hashbrown = "0.15.2"
-indexmap-allocator-api = "2.7.1"
+bitflags = "2.10.0"
+bumpalo = "3.19.0"
+clap = "4.5.53"
+criterion = "0.8.1"
+half = "2.7.1"
+hashbrown = "0.16.1"
+indexmap-allocator-api = { git = 'https://github.com/Hans-Halverson/indexmap-allocator-api.git' }
 num-bigint = "0.4.3"
 num-traits = "0.2.16"
-quote = "1.0.32"
-rand = "0.8.5"
-regex = "1.7.1"
+quote = "1.0.42"
+rand = "0.9.2"
+regex = "1.12.2"
 ryu-js = "1.0.2"
 serde = "1.0.152"
-serde_json = "1.0.91"
+serde_json = "1.0.147"
 supports-color = "3.0.2"
-syn = "2.0.27"
-tikv-jemallocator = "0.6"
+syn = "2.0.111"
 threadpool = "1.8.1"
-yaml-rust = "0.4.5"
+yaml-rust = "0.4.4"
 
 # ICU4X crates must all be the same version
 icu_casemap = "2.1.1"
 icu_collator = "2.1.1"
 icu_collections = "2.1.1"
 icu_locale = "2.1.1"
 icu_normalizer = "2.1.1"
-icu_properties = "2.1.1"
+icu_properties = { version = "2.1.1", features = ["alloc"] }
 icu_provider = "2.1.1"
 icu_provider_baked = "2.1.1"
 icu_provider_adapters = "2.1.1"
-zerotrie = "0.2.0"
+zerotrie = "0.2.3"
 zerovec = "0.11.3"
 
 [workspace.lints.clippy]
@@ -69,7 +73,3 @@ mutable_key_type = "allow"
 new_ret_no_self = "allow"
 new_without_default = "allow"
 too_many_arguments = "allow"
-
-[patch.crates-io]
-# A version of indexmap 2.7.1 patched to support the allocator API
-indexmap-allocator-api = { git = 'https://github.com/Hans-Halverson/indexmap-allocator-api.git' }

Cargo.toml

@@ -1,12 +1,11 @@
-# Brimstone
+# SO2 JS
+> read as `Sulphur Dioxide JS`
 
-Brimstone is a JavaScript engine written from scratch in Rust, aiming to have full support for the JavaScript language.
+SO2JS is a fork of [Brimstone](https://github.com/Hans-Halverson/brimstone) JS engine which is a JavaScript engine written from scratch in Rust, aiming to have full support for the JavaScript language.
 
-Brimstone is a work in progress but already supports almost all of the JavaScript language (>97% of the ECMAScript language in test262). Not ready for use in production.
+SO2 [Brimstone](https://github.com/Hans-Halverson/brimstone) Implements the [ECMAScript specification](https://tc39.es/ecma262/). Heavy inspiration is taken from the design of [V8](https://v8.dev/) and SerenityOS's [LibJS](https://github.com/LadybirdBrowser/ladybird). Brimstone chooses to implement almost all components of the engine from scratch with minimal dependencies, with the notable exception of [ICU4X](https://github.com/unicode-org/icu4x).
 
-Implements the [ECMAScript specification](https://tc39.es/ecma262/). Heavy inspiration is taken from the design of [V8](https://v8.dev/) and SerenityOS's [LibJS](https://github.com/LadybirdBrowser/ladybird). Brimstone chooses to implement almost all components of the engine from scratch with minimal dependencies, with the notable exception of [ICU4X](https://github.com/unicode-org/icu4x).
-
-Brimstone features:
+## Features
 
 - Bytecode VM, heavily inspired by the design of V8's Ignition
 - Compacting garbage collector, written in *very* unsafe Rust
@@ -33,7 +32,7 @@ Hello world!
 
 ## Testing
 
-Brimstone relies heavily on a set of first and third party integration test suites, most notably the official [test262](https://github.com/tc39/test262) test suite. A custom [integration test runner](./tests/README.md) is included. This can be run with:
+SO2(Brimstone) relies heavily on a set of first and third party integration test suites, most notably the official [test262](https://github.com/tc39/test262) test suite. A custom [integration test runner](./tests/README.md) is included. This can be run with:
 
 ```
 cargo brimstone-test

README.md

@@ -15,25 +15,25 @@ clap = { workspace = true, features = ["derive"] }
 
 brimstone_core.workspace = true
 brimstone_serialized_heap.workspace = true
+parking_lot.workspace = true
+once_cell.workspace = true
 
 [dev-dependencies]
 criterion.workspace = true
 
 [features]
-default = ["alloc_error", "annex_b", "jemalloc"]
+default = ["alloc_error", "annex_b"]
 # Enable Annex B extensions by default
 annex_b = ["brimstone_core/annex_b"]
-# Run the garbage collector in stress test mode
-gc_stress_test = ["brimstone_core/gc_stress_test"]
 # Collect handle use statistics
 handle_stats = ["brimstone_core/handle_stats"]
-# Use the jemalloc allocator
-jemalloc = ["brimstone_core/jemalloc"]
-# Do not use the jemalloc allocator, overrides the `jemalloc` feature
-no_jemalloc = ["brimstone_core/no_jemalloc"]
 # Return allocation errors instead of panicking
 alloc_error = ["brimstone_core/alloc_error"]
 
+
+# Run the garbage collector in stress test mode
+gc_stress_test = ["brimstone_core/gc_stress_test"]
+
 [lints]
 workspace = true
 

rustfmt.toml

@@ -67,7 +67,10 @@ fn setup_step(file: &str, flags: TestFlags) -> (Context, ParseContext) {
         .annex_b(flags.contains(TestFlags::ANNEX_B))
         .heap_size(10 * 1024 * 1024)
         .build();
-    let cx = ContextBuilder::new().set_options(Rc::new(options)).build();
+    let cx = ContextBuilder::new()
+        .set_options(Rc::new(options))
+        .build()
+        .unwrap();
     let source = Rc::new(Source::new_from_file(&format!("benches/{file}")).unwrap());
     let pcx = ParseContext::new(source);
     (cx, pcx)
@@ -202,7 +205,10 @@ fn context_benches(c: &mut Criterion) {
         || {},
         |_| {
             let options = OptionsBuilder::new().serialized_heap(None).build();
-            let cx = ContextBuilder::new().set_options(Rc::new(options)).build();
+            let cx = ContextBuilder::new()
+                .set_options(Rc::new(options))
+                .build()
+                .unwrap();
             (cx, ())
         },
         cleanup2_step,
@@ -217,7 +223,10 @@ fn context_benches(c: &mut Criterion) {
             let options = OptionsBuilder::new()
                 .serialized_heap(Some(serialized_heap))
                 .build();
-            let cx = ContextBuilder::new().set_options(Rc::new(options)).build();
+            let cx = ContextBuilder::new()
+                .set_options(Rc::new(options))
+                .build()
+                .unwrap();
             (cx, ())
         },
         cleanup2_step,

src/Cargo.toml

@@ -15,6 +15,8 @@ icu_provider_baked.workspace = true
 icu_provider_adapters.workspace = true
 zerotrie.workspace = true
 zerovec.workspace = true
+hashbrown.workspace = true
+once_cell.workspace = true
 
 [build-dependencies]
 icu_casemap.workspace = true
@@ -27,4 +29,4 @@ icu_provider = { workspace = true, features = ["sync"] }
 icu_provider_baked.workspace = true
 icu_provider_adapters.workspace = true
 zerotrie.workspace = true
-zerovec.workspace = true
+zerovec.workspace = true

src/benches/benches.rs

@@ -164,8 +164,8 @@ fn gen_overrides_file(
     let mut file = String::new();
 
     file.push_str("use icu_collections::codepointinvlist::{CodePointInversionList, CodePointInversionListBuilder};
-use std::collections::HashMap;
-use std::sync::LazyLock;
+use hashbrown::HashMap;
+use once_cell::sync::Lazy;
 
 fn build_overrides_set() -> CodePointInversionList<'static> {
   let mut builder = CodePointInversionListBuilder::new();
@@ -192,15 +192,17 @@ fn build_overrides_map() -> HashMap<char, CodePointInversionList<'static>> {
             file.push_str(&format!("  builder.add_char('{closure_char}');\n"));
         }
 
-        file.push_str(&format!("  map.insert('{overriden_char}', builder.build());\n\n"));
+        file.push_str(&format!(
+            "  map.insert('{overriden_char}', builder.build());\n\n"
+        ));
     }
 
     file.push_str(
         "  map
 }
 
-static OVERRIDES_SET: LazyLock<CodePointInversionList<'static>> = LazyLock::new(build_overrides_set);
-static OVERRIDES_MAP: LazyLock<HashMap<char, CodePointInversionList<'static>>> = LazyLock::new(build_overrides_map);
+static OVERRIDES_SET: Lazy<CodePointInversionList<'static>> = Lazy::new(build_overrides_set);
+static OVERRIDES_MAP: Lazy<HashMap<char, CodePointInversionList<'static>>> = Lazy::new(build_overrides_map);
 
 pub fn has_case_closure_override(c: char) -> bool {
   OVERRIDES_SET.contains(c)
@@ -214,10 +216,14 @@ const ALL_CASE_FOLDED_DATA",
 );
 
     let inv_list_vec = all_case_folded.get_inversion_list_vec();
-    file.push_str(&format!(": [u32; {}] = {:?};\n\n", inv_list_vec.len(), inv_list_vec));
+    file.push_str(&format!(
+        ": [u32; {}] = {:?};\n\n",
+        inv_list_vec.len(),
+        inv_list_vec
+    ));
 
     file.push_str(
-        "static ALL_CASE_FOLDED_SET: LazyLock<CodePointInversionList<'static>> = LazyLock::new(|| {
+        "static ALL_CASE_FOLDED_SET: Lazy<CodePointInversionList<'static>> = Lazy::new(|| {
     CodePointInversionList::try_from_u32_inversion_list_slice(&ALL_CASE_FOLDED_DATA).unwrap()
 });
 

src/brimstone_icu_collections/Cargo.toml

@@ -1 +1,2 @@
+#![no_std]
 include!(concat!(env!("OUT_DIR"), "/generated_icu_collections.rs"));

src/brimstone_icu_collections/build.rs

@@ -14,7 +14,9 @@ struct CharRewriter {
 
 impl CharRewriter {
     fn new() -> Self {
-        Self { char_const_decls: HashMap::new() }
+        Self {
+            char_const_decls: HashMap::new(),
+        }
     }
 
     fn add_char_constant(&mut self, lit_char: &syn::LitChar) -> syn::Ident {