feat: WebIDL derive macro (#1003)

- adds a `WebIdlConverter` trait
  - implemented for Vec, to have sequence converters
  - implemented for Option, to have nullable converters
  - implemented for HashMap, to have record converters
  - implemented for integers
- implemented for floats, and creates `Unrestricted` structs for
unrestricted float and unrestricted double
  - implemented for booleans
  - implemented for string
  - creates new `ByteString` struct for bytestring conversion
  - creates new `BigInt` struct for bigint conversion
- adds a `WebIDL` derive macro, current only allowed on structs as a
dictionary converter and on enums as enum converters

Cargo.toml

@@ -28,7 +28,7 @@ serde_v8 = { version = "0.236.0", path = "./serde_v8" }
 deno_ast = { version = "=0.40.0", features = ["transpiling"] }
 deno_core_icudata = "0.74.0"
 deno_unsync = "0.4.1"
-v8 = { version = "130.0.2", default-features = false }
+v8 = { version = "130.0.4", default-features = false }
 
 anyhow = "1"
 bencher = "0.1"
@@ -40,6 +40,7 @@ cooked-waker = "5"
 criterion = "0.5"
 fastrand = "2"
 futures = "0.3.21"
+indexmap = "2.1.0"
 libc = "0.2.126"
 memoffset = ">=0.9"
 num-bigint = { version = "0.4", features = ["rand"] }

core/Cargo.toml

@@ -35,7 +35,7 @@ deno_core_icudata = { workspace = true, optional = true }
 deno_ops.workspace = true
 deno_unsync.workspace = true
 futures.workspace = true
-indexmap = "2.1.0"
+indexmap.workspace = true
 libc.workspace = true
 memoffset.workspace = true
 parking_lot.workspace = true

core/error.rs

@@ -97,7 +97,14 @@ impl std::error::Error for CustomError {}
 /// If this error was crated with `custom_error()`, return the specified error
 /// class name. In all other cases this function returns `None`.
 pub fn get_custom_error_class(error: &Error) -> Option<&'static str> {
-  error.downcast_ref::<CustomError>().map(|e| e.class)
+  error
+    .downcast_ref::<CustomError>()
+    .map(|e| e.class)
+    .or_else(|| {
+      error
+        .downcast_ref::<crate::webidl::WebIdlError>()
+        .map(|_| "TypeError")
+    })
 }
 
 /// A wrapper around `anyhow::Error` that implements `std::error::Error`

core/lib.rs

@@ -32,9 +32,12 @@ mod runtime;
 mod source_map;
 mod tasks;
 mod web_timeout;
+pub mod webidl;
 
 // Re-exports
 pub use anyhow;
+pub use deno_ops::op2;
+pub use deno_ops::WebIDL;
 pub use deno_unsync as unsync;
 pub use futures;
 pub use parking_lot;
@@ -51,8 +54,6 @@ pub use sourcemap;
 pub use url;
 pub use v8;
 
-pub use deno_ops::op2;
-
 pub use crate::async_cancel::CancelFuture;
 pub use crate::async_cancel::CancelHandle;
 pub use crate::async_cancel::CancelTryFuture;

core/runtime/mod.rs

@@ -10,7 +10,7 @@ pub mod ops_rust_to_v8;
 mod setup;
 mod snapshot;
 pub mod stats;
-pub(crate) mod v8_static_strings;
+pub mod v8_static_strings;
 
 #[cfg(all(test, not(miri)))]
 mod tests;

core/runtime/v8_static_strings.rs

@@ -1,4 +1,5 @@
 // Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
+#[macro_export]
 macro_rules! v8_static_strings {
   ($($ident:ident = $str:literal),* $(,)?) => {
     $(
@@ -7,7 +8,7 @@ macro_rules! v8_static_strings {
   };
 }
 
-pub(crate) use v8_static_strings;
+pub use v8_static_strings;
 
 v8_static_strings!(
   BUILD_CUSTOM_ERROR = "buildCustomError",