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Update parser/build.rs to embed python.rs

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This commit is contained in:
Jeong YunWon 2023-05-06 04:33:49 +09:00
parent d66d935879
commit e1f70100ac
6 changed files with 75558 additions and 31 deletions
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54
parser/build.rs
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@ -5,15 +5,39 @@ use std::path::{Path, PathBuf};
use tiny_keccak::{Hasher, Sha3};
fn main() -> anyhow::Result<()> {
const SOURCE: &str = "python.lalrpop";
let out_dir = PathBuf::from(std::env::var_os("OUT_DIR").unwrap());
println!("cargo:rerun-if-changed={SOURCE}");
try_lalrpop(SOURCE, &out_dir.join("python.rs"))?;
gen_phf(&out_dir);
Ok(())
const SOURCE: &str = "src/python.lalrpop";
println!("cargo:rerun-if-changed={SOURCE}");
let target;
let error;
#[cfg(feature = "lalrpop")]
{
target = out_dir.join("src/python.rs");
}
#[cfg(not(feature = "lalrpop"))]
{
target = PathBuf::from("src/python.rs");
error = "python.lalrpop and src/python.rs doesn't match. This is a rustpython-parser bug. Please report it unless you are editing rustpython-parser. Run `lalrpop src/python.lalrpop` to build parser again.";
}
let Some(message) = requires_lalrpop(SOURCE, &target) else {
return Ok(());
};
#[cfg(feature = "lalrpop")]
{
let Err(e) = try_lalrpop() else {
return Ok(());
};
error = e;
}
println!("cargo:warning={message}");
panic!("running lalrpop failed. {error:?}");
}
fn requires_lalrpop(source: &str, target: &Path) -> Option<String> {
@ -68,28 +92,14 @@ fn requires_lalrpop(source: &str, target: &Path) -> Option<String> {
None
}
fn try_lalrpop(source: &str, target: &Path) -> anyhow::Result<()> {
let Some(_message) = requires_lalrpop(source, target) else {
return Ok(());
};
#[cfg(feature = "lalrpop")]
#[cfg(feature = "lalrpop")]
fn try_lalrpop() -> Result<(), Box<dyn std::error::Error>> {
// We are not using lalrpop::process_root() or Configuration::process_current_dir()
// because of https://github.com/lalrpop/lalrpop/issues/699.
lalrpop::Configuration::new()
.use_cargo_dir_conventions()
.set_in_dir(Path::new("."))
.process()
.unwrap_or_else(|e| {
println!("cargo:warning={_message}");
panic!("running lalrpop failed. {e:?}");
});
#[cfg(not(feature = "lalrpop"))]
{
println!("cargo:warning=try: cargo build --manifest-path=compiler/parser/Cargo.toml --features=lalrpop");
}
Ok(())
}
fn sha_equal(expected_sha3_str: &str, actual_sha3: &[u8; 32]) -> bool {