Merge pull request #1306 from nnethercote/add-serde_derive

Add `serde_derive-1.0.136`

Author: nnethercote

collector/benchmarks/README.md

@@ -37,6 +37,8 @@ They mostly consist of real-world crates.
 - **ripgrep-13.0.0**: A line-oriented search tool. A widely-used utility.
 - **serde-1.0.136**: A serialization/deserialization crate. Used by many other
   Rust programs.
+- **serde_derive-1.0.136**: A proc-macro sub-crate used by `serde`. Used by
+  many other Rust programs. Stresses declarative macro expansion somewhat.
 - **stm32f4-0.14.0**: A crate that has many thousands of blanket impl blocks.
   It uses cargo features to enable large portions of its structure and is
   built with `--features=stm32f410` to have faster benchmarking times.
@@ -96,8 +98,8 @@ compiler in interesting ways.
   actix-web and other libraries with similarly nested type combinators.
 - **regression-31157**: A small program that caused a [large performance
   regression](https://github.com/rust-lang/rust/issues/31157) from the past.
-- **token-stream-stress**: Constructs a long token stream much like the `quote`
-  crate does, which caused [quadratic
+- **token-stream-stress**: A proc-macro crate. Constructs a long token stream
+  much like the `quote` crate does, which caused [quadratic
   behavior](https://github.com/rust-lang/rust/issues/65080) in the past.
 - **tt-muncher**: Calls a quadratic TT muncher macro (based on `quote::quote!`)
   with a long input, which stresses macro expansion.
@@ -188,13 +190,8 @@ Rust code being written today.
       applies correctly, e.g. `target/release/collector bench_local +nightly
       --id Test --profiles=Check --scenarios=IncrPatched
       --include=$NEW_BENCHMARK`
-  - `git grep` for occurrences of the old benchmark name (e.g. in
-    `.github/workflows/ci.yml` or `ci/check-*.sh`) and see if anything similar
-    needs doing for the new benchmark... usually not.
-  - Add the new entry to `collector/benchmarks/README.md`. Don't remove the
-    entry for the old benchmark yet.
-- Compare benchmarking time for the old and new versions of the benchmark.
-  (It's useful to know if the new one is a lot slower than the old one.)
+  - Add the new entry to `collector/benchmarks/README.md`.
+- Consider the benchmarking time for the benchmark.
   - First, measure the entire compilation time with something like this, by
     doing this within the benchmark directory is good:
     ```
@@ -230,9 +227,13 @@ Rust code being written today.
 
 ## Update a benchmark
 
-- Do this in two steps. First add the new version of the benchmark. Once the PR
-  is merged, make sure it's running correctly. Second, remove the old version
-  of the benchmark. Doing it in two steps ensures we have continuity of
-  profiling coverage in the case where something goes wrong.
+- Do this in two steps.
+  - First add the new version of the benchmark. Compare the benchmarking time
+    of the two versions to make sure nothing outrageous has happened. Once the
+    PR is merged, make sure it's running correctly.
+  - Second, remove the old version of the benchmark.
+  Doing it in two steps ensures we have continuity of profiling coverage in the
+  case where something goes wrong.
+- Compare the benchmarking time of the two versions.
 - When adding the new version, for `perf-config.json` and the `N-*.patch`
   files, use the corresponding files for the old version as a starting point.

collector/benchmarks/serde_derive-1.0.136/.cargo_vcs_info.json

@@ -0,0 +1,6 @@
+{
+  "git": {
+    "sha1": "02bd79a0bada78dd88d050f6478806f001f41fb0"
+  },
+  "path_in_vcs": "serde_derive"
+}

collector/benchmarks/serde_derive-1.0.136/0-println.patch

@@ -0,0 +1,13 @@
+diff --git a/src/de.rs b/src/de.rs
+index ff7bc42f..d51d2954 100644
+--- a/src/de.rs
++++ b/src/de.rs
+@@ -17,6 +17,8 @@ use std::ptr;
+ pub fn expand_derive_deserialize(
+     input: &mut syn::DeriveInput,
+ ) -> Result<TokenStream, Vec<syn::Error>> {
++    println!("testing");
++
+     replace_receiver(input);
+ 
+     let ctxt = Ctxt::new();

collector/benchmarks/serde_derive-1.0.136/Cargo.lock

@@ -0,0 +1,46 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies.
+#
+# If you are reading this file be aware that the original Cargo.toml
+# will likely look very different (and much more reasonable).
+# See Cargo.toml.orig for the original contents.
+
+[package]
+rust-version = "1.31"
+name = "serde_derive"
+version = "1.0.136"
+authors = ["Erick Tryzelaar <[email protected]>", "David Tolnay <[email protected]>"]
+include = ["build.rs", "src/**/*.rs", "crates-io.md", "README.md", "LICENSE-APACHE", "LICENSE-MIT"]
+description = "Macros 1.1 implementation of #[derive(Serialize, Deserialize)]"
+homepage = "https://serde.rs"
+documentation = "https://serde.rs/derive.html"
+readme = "crates-io.md"
+keywords = ["serde", "serialization", "no_std"]
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/serde-rs/serde"
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]
+
+[lib]
+name = "serde_derive"
+proc-macro = true
+[dependencies.proc-macro2]
+version = "1.0"
+
+[dependencies.quote]
+version = "1.0"
+
+[dependencies.syn]
+version = "1.0.60"
+[dev-dependencies.serde]
+version = "1.0"
+
+[features]
+default = []
+deserialize_in_place = []
+
+[workspace]