mirror of
https://github.com/fluencelabs/wasmer
synced 2025-03-19 01:20:51 +00:00
107 lines
3.5 KiB
Rust
107 lines
3.5 KiB
Rust
extern crate cbindgen;
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use cbindgen::{Builder, Language};
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use std::{env, fs, path::PathBuf};
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fn main() {
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let crate_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
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let mut crate_wasmer_header_file = PathBuf::from(&crate_dir);
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crate_wasmer_header_file.push("wasmer");
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let out_dir = env::var("OUT_DIR").unwrap();
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let mut out_wasmer_header_file = PathBuf::from(&out_dir);
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out_wasmer_header_file.push("wasmer");
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let mut pre_header = r#"
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#if !defined(WASMER_H_MACROS)
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#define WASMER_H_MACROS
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// Define the `ARCH_X86_X64` constant.
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#if defined(MSVC) && defined(_M_AMD64)
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# define ARCH_X86_64
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#elif (defined(GCC) || defined(__GNUC__) || defined(__clang__)) && defined(__x86_64__)
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# define ARCH_X86_64
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#endif
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// Compatibility with non-Clang compilers.
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#if !defined(__has_attribute)
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# define __has_attribute(x) 0
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#endif
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// Compatibility with non-Clang compilers.
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#if !defined(__has_declspec_attribute)
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# define __has_declspec_attribute(x) 0
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#endif
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// Define the `DEPRECATED` macro.
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#if defined(GCC) || defined(__GNUC__) || __has_attribute(deprecated)
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# define DEPRECATED(message) __attribute__((deprecated(message)))
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#elif defined(MSVC) || __has_declspec_attribute(deprecated)
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# define DEPRECATED(message) __declspec(deprecated(message))
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#endif
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"#
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.to_string();
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#[cfg(feature = "wasi")]
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{
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pre_header += "#define WASMER_WASI_ENABLED\n";
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}
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#[cfg(feature = "emscripten")]
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{
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pre_header += "#define WASMER_EMSCRIPTEN_ENABLED\n";
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}
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// Close pre header.
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pre_header += "#endif // WASMER_H_MACROS\n";
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// Generate the C bindings in the `OUT_DIR`.
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out_wasmer_header_file.set_extension("h");
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Builder::new()
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.with_crate(crate_dir.clone())
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.with_language(Language::C)
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.with_include_guard("WASMER_H")
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.with_header(&pre_header)
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.with_define("target_family", "windows", "_WIN32")
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.with_define("target_arch", "x86_64", "ARCH_X86_64")
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.with_define("feature", "wasi", "WASMER_WASI_ENABLED")
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.with_define("feature", "emscripten", "WASMER_EMSCRIPTEN_ENABLED")
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.generate()
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.expect("Unable to generate C bindings")
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.write_to_file(out_wasmer_header_file.as_path());
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// Generate the C++ bindings in the `OUT_DIR`.
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out_wasmer_header_file.set_extension("hh");
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Builder::new()
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.with_crate(crate_dir)
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.with_language(Language::Cxx)
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.with_include_guard("WASMER_H")
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.with_header(&pre_header)
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.with_define("target_family", "windows", "_WIN32")
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.with_define("target_arch", "x86_64", "ARCH_X86_64")
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.with_define("feature", "wasi", "WASMER_WASI_ENABLED")
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.with_define("feature", "emscripten", "WASMER_EMSCRIPTEN_ENABLED")
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.generate()
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.expect("Unable to generate C++ bindings")
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.write_to_file(out_wasmer_header_file.as_path());
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// Copy the generated C bindings from `OUT_DIR` to
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// `CARGO_MANIFEST_DIR`.
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crate_wasmer_header_file.set_extension("h");
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out_wasmer_header_file.set_extension("h");
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fs::copy(
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out_wasmer_header_file.as_path(),
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crate_wasmer_header_file.as_path(),
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)
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.expect("Unable to copy the generated C bindings");
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// Copy the generated C++ bindings from `OUT_DIR` to
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// `CARGO_MANIFEST_DIR`.
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crate_wasmer_header_file.set_extension("hh");
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out_wasmer_header_file.set_extension("hh");
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fs::copy(out_wasmer_header_file, crate_wasmer_header_file)
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.expect("Unable to copy the generated C++ bindings");
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}
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