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Remove dependency on syn/visit feature

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The builtin visitor is fairly expensive to compile (3700 lines of code),
particularly if something else in the dependency graph also enables
syn/full. For the usage in serde_derive, it turns out to be easy to
replace.
This commit is contained in:
David Tolnay
2021-01-23 21:59:24 -08:00
parent 2fd5212204
commit 85c6904a93
3 changed files with 96 additions and 5 deletions
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serde_derive_internals/Cargo.toml
+1 -1
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@@ -16,7 +16,7 @@ path = "lib.rs"
[dependencies]
proc-macro2 = "1.0"
quote = "1.0"
syn = { version = "1.0.33", default-features = false, features = ["derive", "parsing", "printing", "clone-impls"] }
syn = { version = "1.0.60", default-features = false, features = ["derive", "parsing", "printing", "clone-impls"] }
[package.metadata.docs.rs]
targets = ["x86_64-unknown-linux-gnu"]