Files
addr2line
adler
aho_corasick
arrayvec
atty
backtrace
bitflags
camino
cargo_metadata
cargo_nextest
cargo_platform
cfg_expr
cfg_if
chrono
clap
clap_derive
color_eyre
config
crossbeam_channel
crossbeam_deque
crossbeam_epoch
crossbeam_utils
ctrlc
datatest_stable
debug_ignore
duct
either
enable_ansi_support
env_logger
eyre
fixedbitset
gimli
guppy
guppy_workspace_hack
hashbrown
humantime
humantime_serde
indent_write
indenter
indexmap
is_ci
itertools
itoa
lazy_static
lexical_core
libc
log
memchr
memoffset
miniz_oxide
nested
nextest_metadata
nextest_runner
nix
nom
num_cpus
num_integer
num_traits
object
once_cell
os_pipe
os_str_bytes
owo_colors
pathdiff
petgraph
proc_macro2
proc_macro_error
proc_macro_error_attr
quick_junit
quick_xml
quote
rayon
rayon_core
regex
regex_syntax
rustc_demangle
ryu
same_file
scopeguard
semver
serde
serde_derive
serde_json
shared_child
shellwords
smallvec
static_assertions
strip_ansi_escapes
strsim
structopt
structopt_derive
supports_color
syn
target_lexicon
target_spec
termcolor
textwrap
time
toml
twox_hash
unicode_xid
utf8parse
vte
vte_generate_state_changes
walkdir
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
use proc_macro2::{Punct, Spacing, TokenStream};

// None of our generated code requires the `From::from` error conversion
// performed by the standard library's `try!` macro. With this simplified macro
// we see a significant improvement in type checking and borrow checking time of
// the generated code and a slight improvement in binary size.
pub fn replacement() -> TokenStream {
    // Cannot pass `$expr` to `quote!` prior to Rust 1.17.0 so interpolate it.
    let dollar = Punct::new('$', Spacing::Alone);

    quote! {
        #[allow(unused_macros)]
        macro_rules! try {
            (#dollar __expr:expr) => {
                match #dollar __expr {
                    _serde::__private::Ok(__val) => __val,
                    _serde::__private::Err(__err) => {
                        return _serde::__private::Err(__err);
                    }
                }
            }
        }
    }
}