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Update to Rust 2021 edition
1 parent d9c3281 commit 7b7b57c

30 files changed

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‎.github/workflows/ci.yml‎

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strategy:
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fail-fast: false
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matrix:
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rust: [stable, beta, 1.31.0]
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rust: [stable, beta, 1.56.0]
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include:
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- rust: nightly
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components: rustc-dev

‎Cargo.toml‎

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@@ -5,7 +5,7 @@ authors = ["David Tolnay <dtolnay@gmail.com>"]
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categories = ["development-tools::procedural-macro-helpers", "parser-implementations"]
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description = "Parser for Rust source code"
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documentation = "https://docs.rs/syn"
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edition = "2018"
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edition = "2021"
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include = [
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"/benches/**",
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"/build.rs",
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keywords = ["macros", "syn"]
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license = "MIT OR Apache-2.0"
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repository = "https://github.com/dtolnay/syn"
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rust-version = "1.31"
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rust-version = "1.56"
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[features]
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default = ["derive", "parsing", "printing", "clone-impls", "proc-macro"]

‎README.md‎

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[`syn::DeriveInput`]: https://docs.rs/syn/1.0/syn/struct.DeriveInput.html
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[parser functions]: https://docs.rs/syn/1.0/syn/parse/index.html
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*Version requirement: Syn supports rustc 1.31 and up.*
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*Version requirement: Syn supports rustc 1.56 and up.*
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[*Release notes*](https://github.com/dtolnay/syn/releases)
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```
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The [`heapsize`] example directory shows a complete working implementation of a
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derive macro. It works on any Rust compiler 1.31+. The example derives a
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`HeapSize` trait which computes an estimate of the amount of heap memory owned
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by a value.
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derive macro. The example derives a `HeapSize` trait which computes an estimate
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of the amount of heap memory owned by a value.
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[`heapsize`]: examples/heapsize
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‎dev/Cargo.toml‎

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name = "syn-dev"
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version = "0.0.0"
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authors = ["David Tolnay <dtolnay@gmail.com>"]
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edition = "2018"
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edition = "2021"
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publish = false
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[lib]

‎examples/dump-syntax/Cargo.toml‎

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name = "dump-syntax"
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version = "0.0.0"
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authors = ["David Tolnay <dtolnay@gmail.com>"]
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edition = "2018"
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edition = "2021"
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publish = false
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[dependencies]

‎examples/heapsize/example/Cargo.toml‎

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name = "heapsize_example"
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version = "0.0.0"
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authors = ["David Tolnay <dtolnay@gmail.com>"]
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edition = "2018"
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edition = "2021"
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publish = false
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[dependencies]

‎examples/heapsize/heapsize/Cargo.toml‎

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name = "heapsize"
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version = "0.0.0"
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authors = ["David Tolnay <dtolnay@gmail.com>"]
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edition = "2018"
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edition = "2021"
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publish = false
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[dependencies]

‎examples/heapsize/heapsize_derive/Cargo.toml‎

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name = "heapsize_derive"
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version = "0.0.0"
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authors = ["David Tolnay <dtolnay@gmail.com>"]
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edition = "2018"
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edition = "2021"
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publish = false
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[lib]

‎examples/lazy-static/example/Cargo.toml‎

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name = "lazy-static-example"
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version = "0.0.0"
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authors = ["David Tolnay <dtolnay@gmail.com>"]
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edition = "2018"
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edition = "2021"
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publish = false
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[dependencies]

‎examples/lazy-static/lazy-static/Cargo.toml‎

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name = "lazy_static"
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version = "0.0.0"
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authors = ["David Tolnay <dtolnay@gmail.com>"]
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edition = "2018"
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edition = "2021"
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publish = false
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[lib]

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