40 lines
1.2 KiB
Rust
40 lines
1.2 KiB
Rust
use std::{env, fs, path::Path, process::Command};
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use proc_macro2::{Span, TokenStream};
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use syn::Ident;
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mod chunk_status;
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mod packet;
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mod particle;
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mod screen;
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mod sound;
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pub fn main() {
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write_generated_file(packet::build(), "packet.rs");
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write_generated_file(screen::build(), "screen.rs");
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write_generated_file(particle::build(), "particle.rs");
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write_generated_file(sound::build(), "sound.rs");
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write_generated_file(chunk_status::build(), "chunk_status.rs");
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}
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pub fn write_generated_file(content: TokenStream, out_file: &str) {
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let out_dir = env::var_os("OUT_DIR").expect("failed to get OUT_DIR env var");
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let path = Path::new(&out_dir).join(out_file);
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let code = content.to_string();
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fs::write(&path, code).expect("Faile to write to fs");
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// Try to format the output for debugging purposes.
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// Doesn't matter if rustfmt is unavailable.
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let _ = Command::new("rustfmt").arg(path).output();
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}
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pub fn ident<I: AsRef<str>>(s: I) -> Ident {
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let s = s.as_ref().trim();
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// Parse the ident from a str. If the string is a Rust keyword, stick an
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// underscore in front.
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syn::parse_str::<Ident>(s)
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.unwrap_or_else(|_| Ident::new(format!("_{s}").as_str(), Span::call_site()))
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}
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