AST transfer WIP

.gitignore

@@ -12,6 +12,9 @@ target/
 
 npm/cli-*
 
+/napi/parser/deserialize.js
+/napi/parser/*.chart.html
+
 # Ignore accidental files from the root
 /*.js
 /*.jsx

.typos.toml

@@ -12,6 +12,7 @@ extend-exclude = [
   "crates/oxc_linter/fixtures",
   "crates/oxc_linter/src/rules/jsx_a11y/img_redundant_alt.rs",
   "crates/oxc_syntax/src/xml_entities.rs",
+  "napi/parser/fixtures",
   "**/*.snap",
   "pnpm-lock.yaml",
 ]

Cargo.toml

@@ -96,6 +96,7 @@ futures                   = { version = "0.3.30" }
 ignore                    = { version = "0.4.22" }
 itertools                 = { version = "0.12.1" }
 jemallocator              = { version = "0.5.4" }
+layout_inspect            = { git = "https://github.com/overlookmotel/layout_inspect", rev = "c126662" }
 lazy_static               = { version = "1.4.0" }
 miette                    = { version = "5.10.0", features = ["fancy-no-backtrace"] }
 mimalloc                  = { version = "0.1.39" }

crates/oxc_allocator/Cargo.toml

@@ -21,5 +21,7 @@ doctest = false
 bumpalo = { workspace = true, features = ["collections"] }
 serde   = { workspace = true }
 
+layout_inspect = { workspace = true, features = ["unique_names"] }
+
 [dev-dependencies]
 serde_json = { workspace = true }

crates/oxc_allocator/src/arena.rs

@@ -10,6 +10,10 @@ use std::{
 
 use bumpalo::collections;
 pub use bumpalo::collections::String;
+use layout_inspect::{
+    defs::{DefBox, DefType, DefVec},
+    Inspect, TypesCollector,
+};
 use serde::{ser::SerializeSeq, Serialize, Serializer};
 
 use crate::Allocator;
@@ -31,6 +35,29 @@ impl<'alloc, T> Box<'alloc, T> {
     }
 }
 
+impl<'alloc, T: Inspect + 'alloc> Inspect for Box<'alloc, T> {
+    fn name() -> std::string::String {
+        "Box<".to_string() + &<T as Inspect>::name() + ">"
+    }
+
+    fn size() -> Option<usize> {
+        Some(std::mem::size_of::<Self>())
+    }
+
+    fn align() -> Option<usize> {
+        Some(std::mem::align_of::<Self>())
+    }
+
+    fn def(collector: &mut TypesCollector) -> DefType {
+        DefType::Box(DefBox {
+            name: <Self as Inspect>::name(),
+            size: <Self as Inspect>::size().unwrap(),
+            align: <Self as Inspect>::align().unwrap(),
+            value_type_id: collector.collect::<T>(),
+        })
+    }
+}
+
 impl<'alloc, T: ?Sized> ops::Deref for Box<'alloc, T> {
     type Target = T;
 
@@ -100,6 +127,29 @@ impl<'alloc, T> Vec<'alloc, T> {
     }
 }
 
+impl<'alloc, T: Inspect + 'alloc> Inspect for Vec<'alloc, T> {
+    fn name() -> std::string::String {
+        "Vec<".to_string() + &<T as Inspect>::name() + ">"
+    }
+
+    fn size() -> Option<usize> {
+        Some(std::mem::size_of::<Self>())
+    }
+
+    fn align() -> Option<usize> {
+        Some(std::mem::align_of::<Self>())
+    }
+
+    fn def(collector: &mut TypesCollector) -> DefType {
+        DefType::Vec(DefVec {
+            name: <Self as Inspect>::name(),
+            size: <Self as Inspect>::size().unwrap(),
+            align: <Self as Inspect>::align().unwrap(),
+            value_type_id: collector.collect::<T>(),
+        })
+    }
+}
+
 impl<'alloc, T> ops::Deref for Vec<'alloc, T> {
     type Target = collections::Vec<'alloc, T>;
 

crates/oxc_allocator/src/lib.rs

@@ -10,6 +10,12 @@ pub struct Allocator {
     bump: Bump,
 }
 
+impl Allocator {
+    pub fn into_bump(self) -> Bump {
+        self.bump
+    }
+}
+
 impl From<Bump> for Allocator {
     fn from(bump: Bump) -> Self {
         Self { bump }

crates/oxc_ast/Cargo.toml

@@ -26,6 +26,8 @@ oxc_index     = { workspace = true }
 bitflags   = { workspace = true }
 num-bigint = { workspace = true }
 
+layout_inspect = { workspace = true, features = ["unique_names"] }
+
 serde      = { workspace = true, features = ["derive"], optional = true }
 serde_json = { workspace = true, optional = true }
 ryu-js     = { workspace = true, optional = true }