mirror of
https://github.com/danog/ext-php-rs.git
synced 2024-11-30 04:39:04 +01:00
67 lines
2.2 KiB
Rust
67 lines
2.2 KiB
Rust
use std::{collections::HashSet, env, path::PathBuf, process::Command};
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use bindgen::callbacks::{MacroParsingBehavior, ParseCallbacks};
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extern crate bindgen;
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// https://github.com/rust-lang/rust-bindgen/issues/687#issuecomment-450750547
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#[derive(Debug)]
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struct IgnoreMacros(HashSet<String>);
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impl ParseCallbacks for IgnoreMacros {
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fn will_parse_macro(&self, name: &str) -> MacroParsingBehavior {
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if self.0.contains(name) {
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MacroParsingBehavior::Ignore
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} else {
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MacroParsingBehavior::Default
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}
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}
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}
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fn main() {
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// rerun if wrapper header is changed
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println!("cargo:rerun-if-changed=wrapper.h");
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// use php-config to fetch includes
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let includes_cmd = Command::new("php-config")
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.arg("--includes")
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.output()
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.expect("Unable to run `php-config`. Please ensure it is visible in your PATH.");
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if !includes_cmd.status.success() {
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let stderr = String::from_utf8(includes_cmd.stderr)
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.unwrap_or_else(|_| String::from("Unable to read stderr"));
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panic!("Error running `php-config`: {}", stderr);
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}
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let includes = String::from_utf8(includes_cmd.stdout)
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.expect("unable to parse `php-config` stdout");
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let ignore_math_h_macros = IgnoreMacros(vec![
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// math.h:914 - enum which uses #define for values
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"FP_NAN".into(),
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"FP_INFINITE".into(),
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"FP_ZERO".into(),
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"FP_SUBNORMAL".into(),
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"FP_NORMAL".into(),
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// math.h:237 - enum which uses #define for values
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"FP_INT_UPWARD".into(),
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"FP_INT_DOWNWARD".into(),
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"FP_INT_TOWARDZERO".into(),
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"FP_INT_TONEARESTFROMZERO".into(),
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"FP_INT_TONEAREST".into(),
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].into_iter().collect());
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let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
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bindgen::Builder::default()
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.header("wrapper.h")
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.clang_args(includes.split(" "))
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.parse_callbacks(Box::new(bindgen::CargoCallbacks))
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.parse_callbacks(Box::new(ignore_math_h_macros))
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.rustfmt_bindings(true)
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.generate()
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.expect("Unable to generate bindings for PHP")
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.write_to_file(out_path.join("bindings.rs"))
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.expect("Unable to write bindings file.");
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}
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