Rollup of 8 pull requests

Cargo.lock

@@ -1671,6 +1671,7 @@ dependencies = [
  "compiler_builtins",
  "rustc-std-workspace-alloc",
  "rustc-std-workspace-core",
+ "serde",
 ]
 
 [[package]]
@@ -1880,6 +1881,12 @@ dependencies = [
  "syn 2.0.67",
 ]
 
+[[package]]
+name = "id-arena"
+version = "2.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "25a2bc672d1148e28034f176e01fffebb08b35768468cc954630da77a1449005"
+
 [[package]]
 name = "ident_case"
 version = "1.0.1"
@@ -2109,6 +2116,12 @@ version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "db13adb97ab515a3691f56e4dbab09283d0b86cb45abd991d8634a9d6f501760"
 
+[[package]]
+name = "lexopt"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baff4b617f7df3d896f97fe922b64817f6cd9a756bb81d40f8883f2f66dcb401"
+
 [[package]]
 name = "libc"
 version = "0.2.155"
@@ -2623,7 +2636,7 @@ dependencies = [
  "indexmap",
  "memchr",
  "ruzstd 0.5.0",
- "wasmparser",
+ "wasmparser 0.118.2",
 ]
 
 [[package]]
@@ -3425,7 +3438,7 @@ dependencies = [
  "object 0.34.0",
  "regex",
  "similar",
- "wasmparser",
+ "wasmparser 0.118.2",
 ]
 
 [[package]]
@@ -3812,7 +3825,7 @@ dependencies = [
  "thin-vec",
  "thorin-dwp",
  "tracing",
- "wasm-encoder",
+ "wasm-encoder 0.200.0",
  "windows",
 ]
 
@@ -5256,6 +5269,15 @@ dependencies = [
  "color-eyre",
 ]
 
+[[package]]
+name = "spdx"
+version = "0.10.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "47317bbaf63785b53861e1ae2d11b80d6b624211d42cb20efcd210ee6f8a14bc"
+dependencies = [
+ "smallvec",
+]
+
 [[package]]
 name = "spdx-expression"
 version = "0.5.2"
@@ -6304,6 +6326,28 @@ version = "0.2.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "af190c94f2773fdb3729c55b007a722abb5384da03bc0986df4c289bf5567e96"
 
+[[package]]
+name = "wasm-component-ld"
+version = "0.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "314d932d5e84c9678751b85498b1482b2f32f185744e449d3ce0b1d400376dad"
+dependencies = [
+ "anyhow",
+ "clap",
+ "lexopt",
+ "tempfile",
+ "wasmparser 0.210.0",
+ "wat",
+ "wit-component",
+]
+
+[[package]]
+name = "wasm-component-ld-wrapper"
+version = "0.1.0"
+dependencies = [
+ "wasm-component-ld",
+]
+
 [[package]]
 name = "wasm-encoder"
 version = "0.200.0"
@@ -6313,6 +6357,40 @@ dependencies = [
  "leb128",
 ]
 
+[[package]]
+name = "wasm-encoder"
+version = "0.210.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e7e3764d9d6edabd8c9e16195e177be0d20f6ab942ad18af52860f12f82bc59a"
+dependencies = [
+ "leb128",
+]
+
+[[package]]
+name = "wasm-encoder"
+version = "0.211.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5e7d931a1120ef357f32b74547646b6fa68ea25e377772b72874b131a9ed70d4"
+dependencies = [
+ "leb128",
+]
+
+[[package]]
+name = "wasm-metadata"
+version = "0.210.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "012729d1294907fcb0866f08460ab95426a6d0b176a599619b84cac7653452b4"
+dependencies = [
+ "anyhow",
+ "indexmap",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "spdx",
+ "wasm-encoder 0.210.0",
+ "wasmparser 0.210.0",
+]
+
 [[package]]
 name = "wasmparser"
 version = "0.118.2"
@@ -6323,6 +6401,42 @@ dependencies = [
  "semver",
 ]
 
+[[package]]
+name = "wasmparser"
+version = "0.210.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7bbcd21e7581619d9f6ca00f8c4f08f1cacfe58bf63f83af57cd0476f1026f5"
+dependencies = [
+ "ahash",
+ "bitflags 2.5.0",
+ "hashbrown",
+ "indexmap",
+ "semver",
+ "serde",
+]
+
+[[package]]
+name = "wast"
+version = "211.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b25506dd82d00da6b14a87436b3d52b1d264083fa79cdb72a0d1b04a8595ccaa"
+dependencies = [
+ "bumpalo",
+ "leb128",
+ "memchr",
+ "unicode-width",
+ "wasm-encoder 0.211.1",
+]
+
+[[package]]
+name = "wat"
+version = "1.211.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eb716ca6c86eecac2d82541ffc39860118fc0af9309c4f2670637bea2e1bdd7d"
+dependencies = [
+ "wast",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -6550,6 +6664,43 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "wit-component"
+version = "0.210.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a450bdb5d032acf1fa0865451fa0c6f50e62f2d31eaa8dba967c2e2d068694a4"
+dependencies = [
+ "anyhow",
+ "bitflags 2.5.0",
+ "indexmap",
+ "log",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "wasm-encoder 0.210.0",
+ "wasm-metadata",
+ "wasmparser 0.210.0",
+ "wit-parser",
+]
+
+[[package]]
+name = "wit-parser"
+version = "0.210.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "60a965cbd439af19a4b44a54a97ab8957d86f02d01320efc9e31c1d3605c6710"
+dependencies = [
+ "anyhow",
+ "id-arena",
+ "indexmap",
+ "log",
+ "semver",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "unicode-xid",
+ "wasmparser 0.210.0",
+]
+
 [[package]]
 name = "writeable"
 version = "0.5.5"

Cargo.toml

@@ -45,6 +45,7 @@ members = [
   "src/tools/opt-dist",
   "src/tools/coverage-dump",
   "src/tools/rustc-perf-wrapper",
+  "src/tools/wasm-component-ld",
 ]
 
 exclude = [
@@ -104,6 +105,9 @@ rustc-demangle.debug = 0
 [profile.release.package.lld-wrapper]
 debug = 0
 strip = true
+[profile.release.package.wasm-component-ld-wrapper]
+debug = 0
+strip = true
 
 [patch.crates-io]
 # See comments in `library/rustc-std-workspace-core/README.md` for what's going on

INSTALL.md

@@ -215,7 +215,7 @@ python x.py build
 
 Right now, building Rust only works with some known versions of Visual Studio.
 If you have a more recent version installed and the build system doesn't
-understand, you may need to force rustbuild to use an older version.
+understand, you may need to force bootstrap to use an older version.
 This can be done by manually calling the appropriate vcvars file before running
 the bootstrap.
 

compiler/rustc_ast/src/attr/mod.rs

@@ -202,21 +202,18 @@ impl Attribute {
         }
     }
 
-    // Named `get_tokens` to distinguish it from the `<Attribute as HasTokens>::tokens` method.
-    pub fn get_tokens(&self) -> TokenStream {
-        match &self.kind {
-            AttrKind::Normal(normal) => TokenStream::new(
-                normal
-                    .tokens
-                    .as_ref()
-                    .unwrap_or_else(|| panic!("attribute is missing tokens: {self:?}"))
-                    .to_attr_token_stream()
-                    .to_token_trees(),
-            ),
-            &AttrKind::DocComment(comment_kind, data) => TokenStream::token_alone(
+    pub fn token_trees(&self) -> Vec<TokenTree> {
+        match self.kind {
+            AttrKind::Normal(ref normal) => normal
+                .tokens
+                .as_ref()
+                .unwrap_or_else(|| panic!("attribute is missing tokens: {self:?}"))
+                .to_attr_token_stream()
+                .to_token_trees(),
+            AttrKind::DocComment(comment_kind, data) => vec![TokenTree::token_alone(
                 token::DocComment(comment_kind, self.style, data),
                 self.span,
-            ),
+            )],
         }
     }
 }