Update Rust crate proc-macro2 to v1.0.107

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
proc-macro2	dependencies	patch	1.0.19 → 1.0.107

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Release Notes

dtolnay/proc-macro2 (proc-macro2)

v1.0.107

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• Documentation improvements

v1.0.106

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• Optimize Span::byte_range (#​530)

v1.0.105

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• Make std dependencies more easily discoverable in source code (#​528)

v1.0.104

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• Add Rust 1.92.0's TokenStream Extend impls (#​527, rust-lang/rust#145722)

v1.0.103

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• Add semver-exempt Literal methods str_value, cstr_value, byte_str_value (#​525)

v1.0.102

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• Fix interaction of Display impls for TokenStream and Ident with formatting specifiers for padding, alignment, width (#​523, #​524)

v1.0.101

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• Optimize Span location accessors (#​519)

v1.0.100

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• Stabilize Span methods on Rust 1.88+: start, end, line, column, file, local_file (#​517, #​518)

v1.0.99

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• Prevent Span's unstable API becoming unavailable from a future new compiler lint (#​515)

v1.0.98

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• Disallow prefixed identifier as name of lifetime: 'prefix#lifetime (#​514, rust-lang/rust#126452)

v1.0.97

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• Allow build-script cleanup failure with NFSv3 output directory to be non-fatal (#​505, #​512, thanks @​davvid)

v1.0.96

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• Simplify how rustdoc flags are decided during docs.rs builds (#​511)

v1.0.95

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• Update semver-exempt API under RUSTFLAGS=--cfg=procmacro2_semver_exempt to that of nightly-2025-04-16 (#​497)

v1.0.94

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• Documentation improvements

v1.0.93

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• Optimize TokenStream's Drop (#​489, #​490, thanks @​WalkerKnapp)

v1.0.92

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• Improve compiler/fallback mismatch panic message (#​487)

v1.0.91

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• Fix panic "compiler/fallback mismatch 949" when using TokenStream::from_str from inside a proc macro to parse a string containing doc comment (#​484)

v1.0.90

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• Improve error recovery in TokenStream's and Literal's FromStr implementations to work around rust-lang/rust#58736 such that rustc does not poison compilation on codepaths that should be recoverable errors (#​477, #​478, #​479, #​480, #​481, #​482)

v1.0.89

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• Ensure OUT_DIR is left with deterministic contents after build script execution (#​474)

v1.0.88

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• Return accurate line and column from Span::start and Span::end inside proc macros on nightly (#​472)

v1.0.87

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• Check valid punctuation character in Punct::new (#​470)

v1.0.86

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• Documentation improvements

v1.0.85

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• Mark some tests as only for 64-bit targets (#​463)

v1.0.84

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• Documentation improvements (#​455, thanks @​CensoredUsername)

v1.0.83

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• Optimize the representation of Ident (#​462)

v1.0.82

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• Resolve unexpected_cfgs warning (#​456)

v1.0.81

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• Documentation improvements

v1.0.80

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• Add Literal::byte_character constructor (#​449)
• Add Literal::c_string constructor #​450)

v1.0.79

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• Clean up dead code

v1.0.78

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• Expose Span::byte_range (#​442)

v1.0.77

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• Add a function to reset thread-local span data (#​438, thanks @​buchgr)

v1.0.76

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• Work around dead_code warning false positive (#​435)

v1.0.75

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• Improve error messages related to proc_macro::LexError (#​434)

v1.0.74

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• Work around improperly cached build script result by sccache (#​432)

v1.0.73

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• Documentation improvements

v1.0.72

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• Improve build script to be robust to proc_macro::Span unstable API changes

v1.0.71

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• Turn on deny(unsafe_op_in_unsafe_fn) lint

v1.0.70

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• Add #[track_caller] on Ident::new so that panics on invalid input are attributed to the caller (#​423)

v1.0.69

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• Fix Span::source_text() bug causing panics or incorrect source text (#​410)

v1.0.68

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• Fix panic in Span::source_text() when source contains multibyte characters (#​408)

v1.0.67

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• Special handling for the (/*ERROR*/) placeholder that rustc uses for macros that fail to expand (#​405)

v1.0.66

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• Raise required compiler from Rust 1.31 to 1.56

v1.0.65

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• Documentation improvements

v1.0.64

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• Fix parsing of bare \r in between tokens (#​399)

v1.0.63

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• Parse c"…" c-string literals (tracking issue: rust-lang/rust#105723)

v1.0.62

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yanked

v1.0.61

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• Stricter parsing of whitespace in cooked string literals and between tokens (#​392, #​393)

v1.0.60

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• Eliminate uses of unstable proc_macro::Span::before/after (#​391)

v1.0.59

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• Enable proc_macro support on wasm targets (#​388)

v1.0.58

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• Make rustc version detection more robust by compiling against modernest stable features (#​384)

v1.0.57

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• Disable nightly-only start()/end() implementation on Span while the upstream API is iterated on (#​383, rust-lang/rust#111571)

v1.0.56

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• Circumvent clippy::octal_escapes lint inside generated string and byte-string literals (#​363, #​380)
• Provide RefUnwindSafe impls for compilers older than 1.58 (#​382)

v1.0.55

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• Set a meaningful Span for literals produced via the FromStr impl of Literal (#​378)
• Implement Literal::subspan in non-macro contexts when "span-locations" feature is enabled (#​379)

v1.0.54

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• Performance improvement to "span-locations" feature (#​373)
• Fix unbounded memory usage when calling proc-macro2's parser from a fuzzer (#​374)

v1.0.53

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• Add support for Rust 1.66's source_text() method (#​350)

v1.0.52

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• Add Group::delim_span (#​366)

v1.0.51

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• Implement rustc's limit on the number of # used for delimiting a raw string literal: 255 (#​364)

v1.0.50

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• Implement Hash for proc_macro2::LineColumn (#​362)

v1.0.49

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• Opt out of -Zrustdoc-scrape-examples on docs.rs for now

v1.0.48

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• Documentation improvements

v1.0.47

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• Fix integer overflow when nesting depth of nested comments exceeds 4 billion (#​357)

v1.0.46

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• Make proc_macro2::TokenStream's FromStr impl consistent with proc_macro::TokenStream's on strings that begin with a byte order mark \u{feff} (#​353)

v1.0.45

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• Fix panic on parsing disallowed raw identifiers such as r#self (#​351)

v1.0.44

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• Expose span.before() and span.after() to access an empty Span located immediately before or after the input span (#​348, upstream tracking issue: rust-lang/rust#87552)

v1.0.43

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• Add keywords to crates.io metadata

v1.0.42

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• Improve parsing performance in non-macro mode (#​335)
• Expose a size_hint() for TokenStream's iterator (#​334)

v1.0.41

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• Produce an accurate .size_hint() from TokenStream's iterator (#​334)

v1.0.40

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• Stabilize Ident::new_raw constructor (#​331, thanks @​mystor)

v1.0.39

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• Replace unicode-xid with unicode-ident crate: https://github.com/dtolnay/unicode-ident

v1.0.38

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• Reduce allocations done by Literal::byte_string constructor (#​328)

v1.0.37

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• Rely on unicode-xid to optimize ASCII properly (#​325)

v1.0.36

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• Improve performance of creating literal tokens through quote! macro

v1.0.35

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• Try to diagnose "cannot find type SourceFile" errors better (#​311)

v1.0.34

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• Work around doc build failure due to docs.rs flags change (#​310)

v1.0.33

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• Enable Group::span_open/span_close on Rust 1.55+ to reflect their stabilization in rustc (#​305, rust-lang/rust#86136)

v1.0.32

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• Support negative int and float literals in FromStr (rust-lang/rust#87262, #​301)

v1.0.31

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• Update Cargo metadata to new repository location

v1.0.30

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• Use proc_macro::is_available on Rust 1.57+ to support projects built with panic=abort or cg_clif (#​300, thanks @​bjorn3)

v1.0.29

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• Pick up stable implementation of proc_macro's impl FromStr for Literal (#​287)

v1.0.28

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• Recognized Cargo's new CARGO_ENCODED_RUSTFLAGS environment variable (#​294, rust-lang/cargo#9601)

v1.0.27

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• impl FromStr for Literal (#​286, rust-lang/rust#84717)

v1.0.26

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• Add impl LexError { pub fn span(&self) -> Span } (#​283)

v1.0.25

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• Documentation improvements (#​278, #​279)

v1.0.24

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• Implement Error and Display for proc_macro2::LexError, matching the libproc_macro impls which exists in Rust 1.44+ (#​240)

v1.0.23

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• Fix several bugs involving lexing of unicode escapes and carriage returns in string literals (#​256, #​257, #​258, #​259, #​260)

v1.0.22

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• Fix several bugs involving lexing of integer and float tokens with unusual suffixes (#​252, #​253, #​254, #​255)

v1.0.21

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• Match libproc_macro's UnwindSafe and RefUnwindSafe impls (#​250)

v1.0.20

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• Match libproc_macro's rendering of whitespace in groups (#​246, #​247, thanks @​Koxiaet)

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