feat(swc/common): add versioned wrapper struct (#5060: Part 1)

crates/ast_node/src/lib.rs

@@ -213,6 +213,10 @@ pub fn ast_node(
                     feature = "rkyv",
                     derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)
                 )]
+                #[cfg_attr(
+                    feature = "rkyv",
+                    archive_attr(repr(u32), derive(bytecheck::CheckBytes))
+                )]
                 #[cfg_attr(
                     feature = "rkyv",
                     archive(bound(
@@ -269,6 +273,10 @@ pub fn ast_node(
                         feature = "rkyv",
                         archive(bound(serialize = "__S: rkyv::ser::Serializer + rkyv::ser::ScratchSpace"))
                     )]
+                    #[cfg_attr(
+                        feature = "rkyv",
+                        archive_attr(repr(C), derive(bytecheck::CheckBytes))
+                    )]
                     serde_tag
                     #[serde(rename_all = "camelCase")]
                     serde_rename

crates/swc_atoms/Cargo.toml

@@ -13,6 +13,7 @@ version = "0.2.12"
 bench = false
 
 [dependencies]
+bytecheck = { version = "0.6.8", optional = true }
 once_cell = "1"
 rkyv = { version = "0.7.39", optional = true }
 rustc-hash = "1.1.0"

crates/swc_atoms/src/lib.rs

@@ -36,6 +36,7 @@ include!(concat!(env!("OUT_DIR"), "/js_word.rs"));
     feature = "rkyv",
     derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)
 )]
+#[cfg_attr(feature = "rkyv", archive_attr(repr(C), derive(bytecheck::CheckBytes)))]
 pub struct Atom(Arc<str>);
 
 impl Atom {

crates/swc_common/Cargo.toml

@@ -24,32 +24,33 @@ perf = ["parking_lot"]
 plugin-base = ["anyhow", "rkyv-impl", "diagnostic-serde"]
 plugin-mode = ["plugin-base"]
 plugin-rt = ["plugin-base"]
-rkyv-impl = ["rkyv"]
+rkyv-impl = ["rkyv", "bytecheck"]
 tty-emitter = ["atty", "termcolor"]
 
 [dependencies]
 ahash = "0.7.4"
-anyhow = {version = "1.0.45", optional = true}
-arbitrary = {version = "1", optional = true, features = ["derive"]}
-ast_node = {version = "0.7.5", path = "../ast_node"}
-atty = {version = "0.2", optional = true}
-better_scoped_tls = {version = "0.1.0", path = "../better_scoped_tls"}
+anyhow = { version = "1.0.45", optional = true }
+arbitrary = { version = "1", optional = true, features = ["derive"] }
+ast_node = { version = "0.7.5", path = "../ast_node" }
+atty = { version = "0.2", optional = true }
+better_scoped_tls = { version = "0.1.0", path = "../better_scoped_tls" }
+bytecheck = { version = "0.6.8", optional = true }
 cfg-if = "1.0.0"
 debug_unreachable = "0.1.1"
 either = "1.5"
-from_variant = {version = "0.1.3", path = "../from_variant"}
+from_variant = { version = "0.1.3", path = "../from_variant" }
 num-bigint = "0.4"
 once_cell = "1.10.0"
-parking_lot = {version = "0.12.0", optional = true}
+parking_lot = { version = "0.12.0", optional = true }
 rkyv = { version = "0.7.39", optional = true }
 rustc-hash = "1.1.0"
-serde = {version = "1.0.119", features = ["derive"]}
+serde = { version = "1.0.119", features = ["derive"] }
 siphasher = "0.3.9"
-sourcemap = {version = "6", optional = true}
+sourcemap = { version = "6", optional = true }
 string_cache = "0.8.4"
-swc_eq_ignore_macros = {version = "0.1", path = "../swc_eq_ignore_macros"}
-swc_visit = {version = "0.3.0", path = "../swc_visit"}
-termcolor = {version = "1.0", optional = true}
+swc_eq_ignore_macros = { version = "0.1", path = "../swc_eq_ignore_macros" }
+swc_visit = { version = "0.3.0", path = "../swc_visit" }
+termcolor = { version = "1.0", optional = true }
 tracing = "0.1.32"
 unicode-width = "0.1.4"
 url = "2.2.2"

crates/swc_common/src/comments.rs

@@ -541,6 +541,7 @@ impl SingleThreadedComments {
     feature = "rkyv",
     derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)
 )]
+#[cfg_attr(feature = "rkyv", archive_attr(repr(C), derive(bytecheck::CheckBytes)))]
 pub struct Comment {
     pub kind: CommentKind,
     pub span: Span,
@@ -558,6 +559,10 @@ impl Spanned for Comment {
     feature = "rkyv",
     derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)
 )]
+#[cfg_attr(
+    feature = "rkyv",
+    archive_attr(repr(u32), derive(bytecheck::CheckBytes))
+)]
 pub enum CommentKind {
     Line,
     Block,

crates/swc_common/src/errors/diagnostic.rs

@@ -23,6 +23,10 @@ use crate::syntax_pos::{MultiSpan, Span};
     feature = "plugin-base",
     derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)
 )]
+#[cfg_attr(
+    feature = "plugin-base",
+    archive_attr(repr(C), derive(bytecheck::CheckBytes))
+)]
 pub struct Diagnostic {
     pub level: Level,
     pub message: Vec<(String, Style)>,
@@ -41,6 +45,10 @@ pub struct Diagnostic {
     feature = "plugin-base",
     derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)
 )]
+#[cfg_attr(
+    feature = "plugin-base",
+    archive_attr(repr(u32), derive(bytecheck::CheckBytes))
+)]
 pub enum DiagnosticId {
     Error(String),
     Lint(String),
@@ -56,6 +64,10 @@ pub enum DiagnosticId {
     feature = "plugin-base",
     derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)
 )]
+#[cfg_attr(
+    feature = "plugin-base",
+    archive_attr(repr(C), derive(bytecheck::CheckBytes))
+)]
 pub struct SubDiagnostic {
     pub level: Level,
     pub message: Vec<(String, Style)>,

crates/swc_common/src/errors/mod.rs

@@ -8,6 +8,9 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// TODO: https://github.com/rkyv/bytecheck/issues/20
+#![allow(ambiguous_associated_items)]
+
 use std::{
     borrow::Cow,
     cell::RefCell,
@@ -50,6 +53,10 @@ mod styled_buffer;
     feature = "plugin-base",
     derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)
 )]
+#[cfg_attr(
+    feature = "plugin-base",
+    archive_attr(repr(u32), derive(bytecheck::CheckBytes))
+)]
 pub enum Applicability {
     MachineApplicable,
     HasPlaceholders,
@@ -66,6 +73,10 @@ pub enum Applicability {
     feature = "plugin-base",
     derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)
 )]
+#[cfg_attr(
+    feature = "plugin-base",
+    archive_attr(repr(C), derive(bytecheck::CheckBytes))
+)]
 pub struct CodeSuggestion {
     /// Each substitute can have multiple variants due to multiple
     /// applicable suggestions
@@ -117,6 +128,10 @@ pub struct CodeSuggestion {
     feature = "plugin-base",
     derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)
 )]
+#[cfg_attr(
+    feature = "plugin-base",
+    archive_attr(repr(C), derive(bytecheck::CheckBytes))
+)]
 pub struct Substitution {
     pub parts: Vec<SubstitutionPart>,
 }
@@ -130,6 +145,10 @@ pub struct Substitution {
     feature = "plugin-base",
     derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)
 )]
+#[cfg_attr(
+    feature = "plugin-base",
+    archive_attr(repr(C), derive(bytecheck::CheckBytes))
+)]
 pub struct SubstitutionPart {
     pub span: Span,
     pub snippet: String,
@@ -877,6 +896,10 @@ impl Handler {
     feature = "plugin-base",
     derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)
 )]
+#[cfg_attr(
+    feature = "plugin-base",
+    archive_attr(repr(u32), derive(bytecheck::CheckBytes))
+)]
 pub enum Level {
     Bug,
     Fatal,

crates/swc_common/src/errors/snippet.rs

@@ -184,6 +184,10 @@ pub struct StyledString {
     feature = "plugin-base",
     derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)
 )]
+#[cfg_attr(
+    feature = "plugin-base",
+    archive_attr(repr(u32), derive(bytecheck::CheckBytes))
+)]
 pub enum Style {
     MainHeaderMsg,
     HeaderMsg,

crates/swc_common/src/plugin.rs

@@ -7,6 +7,8 @@
 use std::any::type_name;
 
 use anyhow::Error;
+use bytecheck::CheckBytes;
+use rkyv::{with::AsBox, Archive, Deserialize, Serialize};
 
 use crate::{syntax_pos::Mark, SyntaxContext};
 
@@ -16,6 +18,10 @@ use crate::{syntax_pos::Mark, SyntaxContext};
     feature = "plugin-base",
     derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)
 )]
+#[cfg_attr(
+    feature = "plugin-base",
+    archive_attr(repr(u32), derive(bytecheck::CheckBytes))
+)]
 /// Enum for possible errors while running transform via plugin.
 /// This error indicates internal operation failure either in plugin_runner
 /// or plugin_macro. Plugin's transform fn itself does not allow to return
@@ -157,3 +163,15 @@ impl Serialized {
         }
     }
 }
+
+/// A wrapper type for the structures to be passed into plugins
+/// serializes the contained value out-of-line so that newer
+/// versions can be viewed as the older version.
+///
+/// First field indicate version of struct type (schema). Any consumers like
+/// swc_plugin_macro can use this to validate compatiblility before attempt to
+/// serialize.
+#[derive(Archive, Deserialize, Serialize)]
+#[repr(transparent)]
+#[archive_attr(repr(transparent), derive(CheckBytes))]
+pub struct VersionedSerializable<T>(#[with(AsBox)] pub (u32, T));