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author | Robin Krahl <robin.krahl@ireas.org> | 2020-01-07 11:18:04 +0000 |
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committer | Daniel Mueller <deso@posteo.net> | 2020-01-08 09:20:25 -0800 |
commit | 5e20a29b4fdc8a2d442d1093681b396dcb4b816b (patch) | |
tree | 55ab083fa8999d2ccbb5e921c1ffe52560dca152 /syn/codegen/src/gen.rs | |
parent | 203e691f46d591a2cc8acdfd850fa9f5b0fb8a98 (diff) | |
download | nitrocli-5e20a29b4fdc8a2d442d1093681b396dcb4b816b.tar.gz nitrocli-5e20a29b4fdc8a2d442d1093681b396dcb4b816b.tar.bz2 |
Add structopt dependency in version 0.3.7
This patch series replaces argparse with structopt in the argument
handling code. As a first step, we need structopt as a dependency.
Import subrepo structopt/:structopt at efbdda4753592e27bc430fb01f7b9650b2f3174d
Import subrepo bitflags/:bitflags at 30668016aca6bd3b02c766e8347e0b4080d4c296
Import subrepo clap/:clap at 784524f7eb193e35f81082cc69454c8c21b948f7
Import subrepo heck/:heck at 093d56fbf001e1506e56dbfa38631d99b1066df1
Import subrepo proc-macro-error/:proc-macro-error at 6c4cfe79a622c5de8ae68557993542be46eacae2
Import subrepo proc-macro2/:proc-macro2 at d5d48eddca4566e5438e8a2cbed4a74e049544de
Import subrepo quote/:quote at 727436c6c137b20f0f34dde5d8fda2679b9747ad
Import subrepo rustversion/:rustversion at 0c5663313516263059ce9059ef81fc7a1cf655ca
Import subrepo syn-mid/:syn-mid at 5d3d85414a9e6674e1857ec22a87b96e04a6851a
Import subrepo syn/:syn at e87c27e87f6f4ef8919d0372bdb056d53ef0d8f3
Import subrepo textwrap/:textwrap at abcd618beae3f74841032aa5b53c1086b0a57ca2
Import subrepo unicode-segmentation/:unicode-segmentation at 637c9874c4fe0c205ff27787faf150a40295c6c3
Import subrepo unicode-width/:unicode-width at 3033826f8bf05e82724140a981d5941e48fce393
Import subrepo unicode-xid/:unicode-xid at 4baae9fffb156ba229665b972a9cd5991787ceb7
Diffstat (limited to 'syn/codegen/src/gen.rs')
-rw-r--r-- | syn/codegen/src/gen.rs | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/syn/codegen/src/gen.rs b/syn/codegen/src/gen.rs new file mode 100644 index 0000000..ef43182 --- /dev/null +++ b/syn/codegen/src/gen.rs @@ -0,0 +1,45 @@ +use inflections::Inflect; +use proc_macro2::{Ident, Span, TokenStream}; +use quote::quote; +use syn_codegen::{Data, Definitions, Features, Node}; + +pub const TERMINAL_TYPES: &[&str] = &["Span", "Ident"]; + +pub fn under_name(name: &str) -> Ident { + Ident::new(&name.to_snake_case(), Span::call_site()) +} + +pub fn traverse( + defs: &Definitions, + node: fn(&mut TokenStream, &mut TokenStream, &Node, &Definitions), +) -> (TokenStream, TokenStream) { + let mut types = defs.types.clone(); + for terminal in TERMINAL_TYPES { + types.push(Node { + ident: terminal.to_string(), + features: Features::default(), + data: Data::Private, + exhaustive: true, + }); + } + types.sort_by(|a, b| a.ident.cmp(&b.ident)); + + let mut traits = TokenStream::new(); + let mut impls = TokenStream::new(); + for s in types { + if s.ident == "Reserved" { + continue; + } + let features = &s.features.any; + let features = match features.len() { + 0 => quote!(), + 1 => quote!(#[cfg(feature = #(#features)*)]), + _ => quote!(#[cfg(any(#(feature = #features),*))]), + }; + traits.extend(features.clone()); + impls.extend(features); + node(&mut traits, &mut impls, &s, defs); + } + + (traits, impls) +} |