diff options
Diffstat (limited to 'test/rubygems/test_gem_ext_cargo_builder')
11 files changed, 621 insertions, 0 deletions
diff --git a/test/rubygems/test_gem_ext_cargo_builder/custom_name/.gitignore b/test/rubygems/test_gem_ext_cargo_builder/custom_name/.gitignore new file mode 100644 index 0000000000..2f7896d1d1 --- /dev/null +++ b/test/rubygems/test_gem_ext_cargo_builder/custom_name/.gitignore @@ -0,0 +1 @@ +target/ diff --git a/test/rubygems/test_gem_ext_cargo_builder/custom_name/custom_name.gemspec b/test/rubygems/test_gem_ext_cargo_builder/custom_name/custom_name.gemspec new file mode 100644 index 0000000000..5f130527dd --- /dev/null +++ b/test/rubygems/test_gem_ext_cargo_builder/custom_name/custom_name.gemspec @@ -0,0 +1,10 @@ +# frozen_string_literal: true + +Gem::Specification.new do |s| + s.name = "custom_name" + s.version = "0.1.0" + s.summary = "A Rust extension for Ruby" + s.extensions = ["ext/custom_name_lib/Cargo.toml"] + s.authors = ["Ian Ker-Seymer"] + s.files = ["lib/custom_name.rb", "ext/custom_name_lib/Cargo.toml", "ext/custom_name_lib/Cargo.lock", "ext/custom_name_lib/src/lib.rs"] +end diff --git a/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/Cargo.lock b/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/Cargo.lock new file mode 100644 index 0000000000..abd1e0ae33 --- /dev/null +++ b/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/Cargo.lock @@ -0,0 +1,249 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +version = 3 + +[[package]] +name = "aho-corasick" +version = "0.7.20" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "cc936419f96fa211c1b9166887b38e5e40b19958e5b895be7c1f93adec7071ac" +dependencies = [ + "memchr", +] + +[[package]] +name = "bindgen" +version = "0.69.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "9ffcebc3849946a7170a05992aac39da343a90676ab392c51a4280981d6379c2" +dependencies = [ + "bitflags", + "cexpr", + "clang-sys", + "lazy_static", + "lazycell", + "peeking_take_while", + "proc-macro2", + "quote", + "regex", + "rustc-hash", + "shlex", + "syn", +] + +[[package]] +name = "bitflags" +version = "2.3.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "630be753d4e58660abd17930c71b647fe46c27ea6b63cc59e1e3851406972e42" + +[[package]] +name = "cexpr" +version = "0.6.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "6fac387a98bb7c37292057cffc56d62ecb629900026402633ae9160df93a8766" +dependencies = [ + "nom", +] + +[[package]] +name = "cfg-if" +version = "1.0.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd" + +[[package]] +name = "clang-sys" +version = "1.4.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "fa2e27ae6ab525c3d369ded447057bca5438d86dc3a68f6faafb8269ba82ebf3" +dependencies = [ + "glob", + "libc", + "libloading", +] + +[[package]] +name = "custom-name-ext" +version = "0.1.0" +dependencies = [ + "rb-sys", +] + +[[package]] +name = "glob" +version = "0.3.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574" + +[[package]] +name = "lazy_static" +version = "1.4.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646" + +[[package]] +name = "lazycell" +version = "1.3.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55" + +[[package]] +name = "libc" +version = "0.2.138" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "db6d7e329c562c5dfab7a46a2afabc8b987ab9a4834c9d1ca04dc54c1546cef8" + +[[package]] +name = "libloading" +version = "0.7.4" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "b67380fd3b2fbe7527a606e18729d21c6f3951633d0500574c4dc22d2d638b9f" +dependencies = [ + "cfg-if", + "winapi", +] + +[[package]] +name = "memchr" +version = "2.5.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d" + +[[package]] +name = "minimal-lexical" +version = "0.2.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a" + +[[package]] +name = "nom" +version = "7.1.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "a8903e5a29a317527874d0402f867152a3d21c908bb0b933e416c65e301d4c36" +dependencies = [ + "memchr", + "minimal-lexical", +] + +[[package]] +name = "peeking_take_while" +version = "0.1.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "19b17cddbe7ec3f8bc800887bab5e717348c95ea2ca0b1bf0837fb964dc67099" + +[[package]] +name = "proc-macro2" +version = "1.0.66" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "18fb31db3f9bddb2ea821cde30a9f70117e3f119938b5ee630b7403aa6e2ead9" +dependencies = [ + "unicode-ident", +] + +[[package]] +name = "quote" +version = "1.0.32" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "50f3b39ccfb720540debaa0164757101c08ecb8d326b15358ce76a62c7e85965" +dependencies = [ + "proc-macro2", +] + +[[package]] +name = "rb-sys" +version = "0.9.97" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "47d30bcad206b51f2f66121190ca678dce1fdf3a2eae0ac5d838d1818b19bdf5" +dependencies = [ + "rb-sys-build", +] + +[[package]] +name = "rb-sys-build" +version = "0.9.97" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "3cbd92f281615f3c2dcb9dcb0f0576624752afbf9a7f99173b37c4b55b62dd8a" +dependencies = [ + "bindgen", + "lazy_static", + "proc-macro2", + "quote", + "regex", + "shell-words", + "syn", +] + +[[package]] +name = "regex" +version = "1.7.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "e076559ef8e241f2ae3479e36f97bd5741c0330689e217ad51ce2c76808b868a" +dependencies = [ + "aho-corasick", + "memchr", + "regex-syntax", +] + +[[package]] +name = "regex-syntax" +version = "0.6.28" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "456c603be3e8d448b072f410900c09faf164fbce2d480456f50eea6e25f9c848" + +[[package]] +name = "rustc-hash" +version = "1.1.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2" + +[[package]] +name = "shell-words" +version = "1.1.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "24188a676b6ae68c3b2cb3a01be17fbf7240ce009799bb56d5b1409051e78fde" + +[[package]] +name = "shlex" +version = "1.3.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64" + +[[package]] +name = "syn" +version = "2.0.28" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "04361975b3f5e348b2189d8dc55bc942f278b2d482a6a0365de5bdd62d351567" +dependencies = [ + "proc-macro2", + "quote", + "unicode-ident", +] + +[[package]] +name = "unicode-ident" +version = "1.0.5" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "6ceab39d59e4c9499d4e5a8ee0e2735b891bb7308ac83dfb4e80cad195c9f6f3" + +[[package]] +name = "winapi" +version = "0.3.9" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419" +dependencies = [ + "winapi-i686-pc-windows-gnu", + "winapi-x86_64-pc-windows-gnu", +] + +[[package]] +name = "winapi-i686-pc-windows-gnu" +version = "0.4.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6" + +[[package]] +name = "winapi-x86_64-pc-windows-gnu" +version = "0.4.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f" diff --git a/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/Cargo.toml b/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/Cargo.toml new file mode 100644 index 0000000000..ad3e7f9b76 --- /dev/null +++ b/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/Cargo.toml @@ -0,0 +1,10 @@ +[package] +name = "custom-name-ext" +version = "0.1.0" +edition = "2021" + +[lib] +crate-type = ["cdylib"] + +[dependencies] +rb-sys = "0.9.97" diff --git a/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/src/lib.rs b/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/src/lib.rs new file mode 100644 index 0000000000..28ba3be564 --- /dev/null +++ b/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/src/lib.rs @@ -0,0 +1,27 @@ +extern crate rb_sys; + +use rb_sys::{rb_define_module, rb_define_module_function, rb_utf8_str_new, VALUE}; +use std::ffi::CString; + +#[no_mangle] +unsafe extern "C" fn say_hello(_klass: VALUE) -> VALUE { + let cstr = CString::new("Hello world!").unwrap(); + + rb_utf8_str_new(cstr.as_ptr(), 12) +} + +#[allow(non_snake_case)] +#[no_mangle] +pub extern "C" fn Init_custom_name_ext() { + let name = CString::new("CustomName").unwrap(); + let function_name = CString::new("say_hello").unwrap(); + // bindgen does not properly detect the arity of the ruby callback function, so we have to transmute + let callback = unsafe { + std::mem::transmute::<unsafe extern "C" fn(VALUE) -> VALUE, unsafe extern "C" fn() -> VALUE>( + say_hello, + ) + }; + let klass = unsafe { rb_define_module(name.as_ptr()) }; + + unsafe { rb_define_module_function(klass, function_name.as_ptr(), Some(callback), 0) } +} diff --git a/test/rubygems/test_gem_ext_cargo_builder/custom_name/lib/custom_name.rb b/test/rubygems/test_gem_ext_cargo_builder/custom_name/lib/custom_name.rb new file mode 100644 index 0000000000..9f8d190baf --- /dev/null +++ b/test/rubygems/test_gem_ext_cargo_builder/custom_name/lib/custom_name.rb @@ -0,0 +1,3 @@ +# frozen_string_literal: true + +require "custom_name_lib/custom_name_ext" diff --git a/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/.gitignore b/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/.gitignore new file mode 100644 index 0000000000..2f7896d1d1 --- /dev/null +++ b/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/.gitignore @@ -0,0 +1 @@ +target/ diff --git a/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/Cargo.lock b/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/Cargo.lock new file mode 100644 index 0000000000..1d174f569e --- /dev/null +++ b/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/Cargo.lock @@ -0,0 +1,249 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +version = 3 + +[[package]] +name = "aho-corasick" +version = "0.7.20" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "cc936419f96fa211c1b9166887b38e5e40b19958e5b895be7c1f93adec7071ac" +dependencies = [ + "memchr", +] + +[[package]] +name = "bindgen" +version = "0.69.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "9ffcebc3849946a7170a05992aac39da343a90676ab392c51a4280981d6379c2" +dependencies = [ + "bitflags", + "cexpr", + "clang-sys", + "lazy_static", + "lazycell", + "peeking_take_while", + "proc-macro2", + "quote", + "regex", + "rustc-hash", + "shlex", + "syn", +] + +[[package]] +name = "bitflags" +version = "2.3.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "630be753d4e58660abd17930c71b647fe46c27ea6b63cc59e1e3851406972e42" + +[[package]] +name = "cexpr" +version = "0.6.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "6fac387a98bb7c37292057cffc56d62ecb629900026402633ae9160df93a8766" +dependencies = [ + "nom", +] + +[[package]] +name = "cfg-if" +version = "1.0.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd" + +[[package]] +name = "clang-sys" +version = "1.4.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "fa2e27ae6ab525c3d369ded447057bca5438d86dc3a68f6faafb8269ba82ebf3" +dependencies = [ + "glob", + "libc", + "libloading", +] + +[[package]] +name = "glob" +version = "0.3.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574" + +[[package]] +name = "lazy_static" +version = "1.4.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646" + +[[package]] +name = "lazycell" +version = "1.3.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55" + +[[package]] +name = "libc" +version = "0.2.138" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "db6d7e329c562c5dfab7a46a2afabc8b987ab9a4834c9d1ca04dc54c1546cef8" + +[[package]] +name = "libloading" +version = "0.7.4" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "b67380fd3b2fbe7527a606e18729d21c6f3951633d0500574c4dc22d2d638b9f" +dependencies = [ + "cfg-if", + "winapi", +] + +[[package]] +name = "memchr" +version = "2.5.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d" + +[[package]] +name = "minimal-lexical" +version = "0.2.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a" + +[[package]] +name = "nom" +version = "7.1.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "a8903e5a29a317527874d0402f867152a3d21c908bb0b933e416c65e301d4c36" +dependencies = [ + "memchr", + "minimal-lexical", +] + +[[package]] +name = "peeking_take_while" +version = "0.1.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "19b17cddbe7ec3f8bc800887bab5e717348c95ea2ca0b1bf0837fb964dc67099" + +[[package]] +name = "proc-macro2" +version = "1.0.66" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "18fb31db3f9bddb2ea821cde30a9f70117e3f119938b5ee630b7403aa6e2ead9" +dependencies = [ + "unicode-ident", +] + +[[package]] +name = "quote" +version = "1.0.32" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "50f3b39ccfb720540debaa0164757101c08ecb8d326b15358ce76a62c7e85965" +dependencies = [ + "proc-macro2", +] + +[[package]] +name = "rb-sys" +version = "0.9.97" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "47d30bcad206b51f2f66121190ca678dce1fdf3a2eae0ac5d838d1818b19bdf5" +dependencies = [ + "rb-sys-build", +] + +[[package]] +name = "rb-sys-build" +version = "0.9.97" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "3cbd92f281615f3c2dcb9dcb0f0576624752afbf9a7f99173b37c4b55b62dd8a" +dependencies = [ + "bindgen", + "lazy_static", + "proc-macro2", + "quote", + "regex", + "shell-words", + "syn", +] + +[[package]] +name = "regex" +version = "1.7.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "e076559ef8e241f2ae3479e36f97bd5741c0330689e217ad51ce2c76808b868a" +dependencies = [ + "aho-corasick", + "memchr", + "regex-syntax", +] + +[[package]] +name = "regex-syntax" +version = "0.6.28" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "456c603be3e8d448b072f410900c09faf164fbce2d480456f50eea6e25f9c848" + +[[package]] +name = "rust_ruby_example" +version = "0.1.0" +dependencies = [ + "rb-sys", +] + +[[package]] +name = "rustc-hash" +version = "1.1.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2" + +[[package]] +name = "shell-words" +version = "1.1.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "24188a676b6ae68c3b2cb3a01be17fbf7240ce009799bb56d5b1409051e78fde" + +[[package]] +name = "shlex" +version = "1.3.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64" + +[[package]] +name = "syn" +version = "2.0.28" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "04361975b3f5e348b2189d8dc55bc942f278b2d482a6a0365de5bdd62d351567" +dependencies = [ + "proc-macro2", + "quote", + "unicode-ident", +] + +[[package]] +name = "unicode-ident" +version = "1.0.5" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "6ceab39d59e4c9499d4e5a8ee0e2735b891bb7308ac83dfb4e80cad195c9f6f3" + +[[package]] +name = "winapi" +version = "0.3.9" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419" +dependencies = [ + "winapi-i686-pc-windows-gnu", + "winapi-x86_64-pc-windows-gnu", +] + +[[package]] +name = "winapi-i686-pc-windows-gnu" +version = "0.4.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6" + +[[package]] +name = "winapi-x86_64-pc-windows-gnu" +version = "0.4.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f" diff --git a/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/Cargo.toml b/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/Cargo.toml new file mode 100644 index 0000000000..60cf49ce03 --- /dev/null +++ b/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/Cargo.toml @@ -0,0 +1,10 @@ +[package] +name = "rust_ruby_example" +version = "0.1.0" +edition = "2021" + +[lib] +crate-type = ["cdylib"] + +[dependencies] +rb-sys = "0.9.97" diff --git a/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/rust_ruby_example.gemspec b/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/rust_ruby_example.gemspec new file mode 100644 index 0000000000..d3f8b11a8b --- /dev/null +++ b/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/rust_ruby_example.gemspec @@ -0,0 +1,10 @@ +# frozen_string_literal: true + +Gem::Specification.new do |s| + s.name = "rust_ruby_example" + s.version = "0.1.0" + s.summary = "A Rust extension for Ruby" + s.extensions = ["Cargo.toml"] + s.authors = ["Ian Ker-Seymer"] + s.files = ["Cargo.toml", "Cargo.lock", "src/lib.rs"] +end diff --git a/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/src/lib.rs b/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/src/lib.rs new file mode 100644 index 0000000000..0626f04e0f --- /dev/null +++ b/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/src/lib.rs @@ -0,0 +1,51 @@ +extern crate rb_sys; + +use rb_sys::{ + rb_define_module, rb_define_module_function, rb_string_value_cstr, rb_utf8_str_new, VALUE, +}; +use std::ffi::{CStr, CString}; +use std::os::raw::{c_char, c_long}; + +#[inline] +unsafe fn cstr_to_string(str: *const c_char) -> String { + CStr::from_ptr(str).to_string_lossy().into_owned() +} + +#[no_mangle] +unsafe extern "C" fn pub_reverse(_klass: VALUE, mut input: VALUE) -> VALUE { + let ruby_string = cstr_to_string(rb_string_value_cstr(&mut input)); + let reversed = ruby_string.to_string().chars().rev().collect::<String>(); + let reversed_cstring = CString::new(reversed).unwrap(); + let size = ruby_string.len() as c_long; + + rb_utf8_str_new(reversed_cstring.as_ptr(), size) +} + +#[cfg(rubygems)] +#[no_mangle] +pub extern "C" fn hello_from_rubygems() {} + +#[cfg(rubygems_0_0_0)] +#[no_mangle] +pub extern "C" fn should_never_exist() {} + +#[cfg(rubygems_x_x_x)] +#[no_mangle] +pub extern "C" fn hello_from_rubygems_version() {} + +#[allow(non_snake_case)] +#[no_mangle] +pub extern "C" fn Init_rust_ruby_example() { + let name = CString::new("RustRubyExample").unwrap(); + let function_name = CString::new("reverse").unwrap(); + // bindgen does not properly detect the arity of the ruby callback function, so we have to transmute + let callback = unsafe { + std::mem::transmute::< + unsafe extern "C" fn(VALUE, VALUE) -> VALUE, + unsafe extern "C" fn() -> VALUE, + >(pub_reverse) + }; + let klass = unsafe { rb_define_module(name.as_ptr()) }; + + unsafe { rb_define_module_function(klass, function_name.as_ptr(), Some(callback), 1) } +} |