function gen wip

examples/helloworld/Cargo.toml

@@ -1,12 +1,12 @@
 [package]
-name = "helloworld"
+name = "ivory-helloworld"
 version = "0.1.0"
-authors = ["Jin Hu <bixuehujin@gmail.com>"]
+authors = ["Robin Appelman <robin@icewind.nl>"]
 edition = "2018"
 
 [dependencies]
 libc = "0.2.50"
-php-rs = { path = "../..", version = "0.1.0" }
+ivory = { path = "../../ivory", version = "0.1.0" }
 
 [lib]
 name = "helloworld"

examples/helloworld/src/lib.rs

@@ -1,51 +1,15 @@
-use libc::*;
-use php_rs::info::{print_table_start, print_table_row, print_table_end};
-use php_rs::zend::*;
-use php_rs::*;
+use ivory::*;
+use ivory::externs::printf;
+use ivory::zend::{ExecuteData, Value};
 
-extern "C" {
-    pub fn php_printf(format: *const c_char, ...) -> size_t;
+#[ivory_export]
+fn hello_world() {
+    printf("Hello world, Rust!");
 }
 
-#[no_mangle]
-pub extern "C" fn php_module_startup(_type: c_int, _module_number: c_int) -> c_int {
-    0
-}
-
-#[no_mangle]
-pub extern "C" fn php_module_shutdown(_type: c_int, _module_number: c_int) -> c_int {
-    0
-}
-
-#[no_mangle]
-pub extern "C" fn php_module_info() {
-    print_table_start();
-    print_table_row(&["A demo PHP extension written in Rust", "enabled"]);
-    print_table_end();
-}
-
-#[no_mangle]
-pub extern "C" fn helloworld(_data: &ExecuteData, _retval: &Value) {
-    unsafe { php_printf(c_str!("Hello world, Rust!")) };
-}
-
-#[no_mangle]
-pub extern "C" fn get_module() -> *mut zend::Module {
-    let mut entry = Box::new(zend::Module::new(c_str!("demo"), c_str!("0.1.0-dev")));
-
-    entry.set_info_func(php_module_info);
-
-    let args = vec![
-        ArgInfo::new(c_str!("name"), false, false, false),
-        ArgInfo::new(c_str!("foo"), false, false, false),
-    ];
-
-    let funcs = vec![
-        Function::new(c_str!("helloworld"), helloworld),
-        Function::new_with_args(c_str!("helloworld2"), helloworld, args),
-    ];
-
-    entry.set_functions(funcs);
-
-    Box::into_raw(entry)
-}
+ivory_module!({
+    name: "demo",
+    version: "0.0.1",
+    functions: &[hello_world],
+    info: &[("demo extension", "enabled")]
+});

ivory/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
-name = "php-rs"
+name = "ivory"
 version = "0.1.0"
-authors = ["Jin Hu <bixuehujin@gmail.com>"]
+authors = ["Robin Appelman <robin@icewind.nl>"]
 keywords = ["php", "php-extension"]
 description = "A library to build PHP extensions in Rust."
 license = "MIT"
@@ -10,7 +10,9 @@ edition = "2018"
 
 [dependencies]
 libc = "0.2.50"
+ivory-macro = { version = "0.1", path = "macro" }
 
 [lib]
-name = "php_rs"
+name = "ivory"
 
+[workspace]

ivory/macro/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+name = "ivory-macro"
+version = "0.1.0"
+authors = ["Robin Appelman <robin@icewind.nl>"]
+keywords = ["php", "php-extension"]
+description = "A library to build PHP extensions in Rust."
+license = "MIT"
+repository = "https://github.com/rethinkphp/php-rs"
+edition = "2018"
+
+[dependencies]
+syn = { version  = "0.15", features = ["full"] }
+quote = "0.6"
+proc-macro2 = "0.4"
+
+[dev-dependencies]
+ivory = { version = "0.1", path = ".." }
+
+[lib]
+name = "ivory_macro"
+proc-macro = true

ivory/macro/src/lib.rs

@@ -0,0 +1,208 @@
+#![recursion_limit = "128"]
+
+extern crate proc_macro;
+
+use std::collections::HashMap;
+use std::process::Command;
+use core::fmt::Debug;
+
+use proc_macro2::{Span, TokenStream, TokenTree};
+use proc_macro2::token_stream::IntoIter;
+use quote::{quote, quote_spanned};
+use syn::{
+    Attribute, AttributeArgs, Data, Expr, ExprStruct, Fields, FieldValue, Ident, Item, ItemFn, Lit, LitStr,
+    Meta, parse2, parse_macro_input, parse_quote, parse_str, Pat, Path,
+};
+use syn::parse_quote::parse;
+use syn::punctuated::Punctuated;
+use syn::spanned::Spanned;
+use syn::token::Comma;
+
+/// See the [crate documentation](index.html) for details
+#[proc_macro_attribute]
+pub fn ivory_export(attr: proc_macro::TokenStream, input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+    let input: TokenStream = input.into();
+    let item = syn::parse2::<Item>(input).unwrap();
+    let attr = parse_macro_input!(attr as AttributeArgs);
+
+    let output = match item {
+        Item::Fn(itemFn) => {
+            export_fn(itemFn).into()
+        }
+        _ => unimplemented!()
+    };
+
+    // panic!("{}", output);
+
+    output
+}
+
+fn export_fn(item: ItemFn) -> TokenStream {
+    let span = item.span();
+    let name = item.ident;
+    let name_str = name.to_string();
+    let meta_name = Ident::new(&format!("FUNCTION_META_{}", name_str.to_uppercase()), span);
+    let body = item.block;
+    let decl = item.decl;
+    if decl.generics.gt_token.is_some() {
+        unimplemented!("generics are not supported for exported functions");
+    }
+
+    quote! {
+        #[no_mangle]
+        pub extern "C" fn #name(data: &ExecuteData, retval: &Value) {
+            let result = #body;
+        }
+
+        const #meta_name: ::ivory::zend::FunctionMeta = ::ivory::zend::FunctionMeta{
+            name: {concat!(#name_str, "\0").as_ptr() as *const ::libc::c_char}
+        };
+    }
+}
+
+/// See the [crate documentation](index.html) for details
+#[proc_macro]
+pub fn ivory_module(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+    let input: TokenStream = input.into();
+    let span = input.span();
+
+    let mut tokens = input.into_iter();
+    let token = tokens.next().unwrap();
+    let group = match token {
+        TokenTree::Group(group) => {
+            group
+        }
+        _ => panic!("macro input must be a group")
+    };
+
+    let fields = group.stream();
+
+    let struct_def = quote! {
+        ::ivory::zend::PhpModule {
+            #fields
+        }
+    };
+    let function_names = get_function_names(struct_def);
+    let funcs = get_funcs(function_names, span);
+
+    let fields = into_c_str(fields);
+
+    let result = quote! {
+        const MODULE_INFO: ::ivory::zend::PhpModule = ::ivory::zend::PhpModule {
+            #fields
+        };
+
+        extern "C" fn php_module_info() {
+            ::ivory::info::php_print_module_info(&MODULE_INFO.info);
+        }
+
+        #[no_mangle]
+        pub extern "C" fn get_module() -> *mut ::ivory::zend::ModuleInternal {
+            let mut entry = Box::new(::ivory::zend::ModuleInternal::new(MODULE_INFO.name, MODULE_INFO.version));
+
+            entry.set_info_func(php_module_info);
+
+            let args = vec![
+                ::ivory::zend::ArgInfo::new(::ivory::c_str!("name"), false, false, false),
+                ::ivory::zend::ArgInfo::new(::ivory::c_str!("foo"), false, false, false),
+            ];
+
+            #funcs;
+
+            entry.set_functions(funcs);
+
+            Box::into_raw(entry)
+        }
+    };
+
+    // panic!("{}", result);
+
+    result.into()
+}
+
+fn into_c_str(input: TokenStream) -> TokenStream {
+    let tokens: Vec<TokenTree> = input.into_iter().map(|token| {
+        match token.clone() {
+            TokenTree::Literal(lit) => {
+                let mut tokens = TokenStream::new();
+                tokens.extend(vec![token.clone()]);
+                match syn::parse2::<LitStr>(tokens) {
+                    Ok(litStr) => {
+                        let val = litStr.value();
+                        let tokens = quote! {
+                            { concat!(#val, "\0").as_ptr() as *const ::libc::c_char }
+                        };
+                        if let Some(tree) = tokens.into_iter().next() {
+                            tree
+                        } else {
+                            panic!();
+                        }
+                    }
+                    Err(_) => token
+                }
+            }
+            _ => token
+        }
+    }).collect();
+    let mut output = TokenStream::new();
+    output.extend(tokens.into_iter());
+    output
+}
+
+fn get_function_names(struct_def: TokenStream) -> Vec<String> {
+    let expr: Expr = parse2(struct_def).unwrap();
+    let expr = get_field_expr(expr, "functions").unwrap();
+    match expr {
+        Expr::Reference(ref_expr) => {
+            match *ref_expr.expr {
+                Expr::Array(arr) => {
+                    arr.elems.into_iter().map(|element: Expr| {
+                        let tokens: TokenStream = quote!(#element);
+                        let tree = tokens.into_iter().next().unwrap();
+                        match tree {
+                            TokenTree::Ident(ident) => {
+                                ident.to_string()
+                            },
+                            _ => panic!()
+                        }
+                    }).collect()
+                }
+                _ => panic!()
+            }
+        }
+        _ => panic!()
+    }
+}
+
+fn get_field_expr(expr: Expr, field_name: &str) -> Option<Expr> {
+    let fields: Punctuated<FieldValue, syn::token::Comma> = match expr {
+        Expr::Struct(expr) => expr.fields,
+        _ => panic!("invalid struct")
+    };
+    for field in fields {
+        if let syn::Member::Named(ident) = &field.member {
+            let name = ident.to_string();
+            if &name == field_name {
+                return Some(field.expr);
+            }
+        }
+    }
+    None
+}
+
+fn get_funcs(names: Vec<String>, span: Span) -> TokenStream {
+    let definitions = names.into_iter().map(|name| {
+        // TODO: args
+        //let meta_name = Ident::new(&format!("FUNCTION_META_{}", name.to_uppercase()), span);
+        let func_ident = Ident::new(&name, span);
+        quote! {
+            ::ivory::zend::Function::new(::ivory::c_str!(#name), #func_ident),
+        }
+    });
+
+    quote! {
+        let funcs = vec![
+            #(#definitions),*
+        ];
+    }
+}

ivory/src/externs/mod.rs

@@ -0,0 +1,12 @@
+use std::ffi::{CString};
+
+use libc::*;
+
+extern "C" {
+    pub fn php_printf(format: *const c_char, ...) -> size_t;
+}
+
+pub fn printf<T: Into<Vec<u8>>>(string: T) {
+    let cstr = CString::new(string).unwrap();
+    unsafe { php_printf(cstr.as_ptr()); }
+}

ivory/src/info.rs

@@ -0,0 +1,20 @@
+use libc::*;
+use std::ffi::CString;
+
+extern "C" {
+    pub fn php_info_print_table_start();
+    pub fn php_info_print_table_row(num_cols: c_int, ...) -> c_void;
+    pub fn php_info_print_table_end();
+}
+
+pub fn php_print_module_info(info: &[(&'static str, &'static str)]) {
+    unsafe {
+        php_info_print_table_start();
+        for (key, value) in info {
+            let v1 = CString::new(key.to_string()).unwrap();
+            let v2 = CString::new(value.to_string()).unwrap();
+            php_info_print_table_row(2, v1, v2);
+        }
+        php_info_print_table_end();
+    }
+}

ivory/src/lib.rs

@@ -0,0 +1,7 @@
+#[macro_use]
+pub mod macros;
+
+pub mod externs;
+pub mod info;
+pub mod zend;
+pub use ivory_macro::{ivory_export, ivory_module};

ivory/src/macros.rs

@@ -1,6 +1,6 @@
 #[macro_export]
 macro_rules! c_str {
     ($s:expr) => {{
-        concat!($s, "\0").as_ptr() as *const c_char
+        concat!($s, "\0").as_ptr() as *const ::libc::c_char
     }};
 }

ivory/src/zend/function.rs

@@ -0,0 +1,84 @@
+use std;
+
+use libc::*;
+use crate::zend::HandlerFunc;
+
+#[repr(C)]
+pub struct ArgInfo {
+    name: *const c_char,
+    class_name: *const c_char,
+    type_hint: c_uchar,
+    pass_by_reference: c_uchar,
+    allow_null: c_uchar,
+    is_variadic: c_uchar,
+}
+
+impl ArgInfo {
+    pub fn new(
+        name: *const c_char,
+        allow_null: bool,
+        is_variadic: bool,
+        by_reference: bool,
+    ) -> ArgInfo {
+        ArgInfo {
+            name,
+            class_name: std::ptr::null(),
+            type_hint: 0,
+            pass_by_reference: by_reference as c_uchar,
+            allow_null: allow_null as c_uchar,
+            is_variadic: is_variadic as c_uchar,
+        }
+    }
+}
+
+#[repr(C)]
+pub struct Function {
+    fname: *const c_char,
+    handler: Option<HandlerFunc>,
+    arg_info: *const ArgInfo,
+    num_args: u32,
+    flags: u32,
+}
+
+impl Function {
+    pub fn new(name: *const c_char, handler: HandlerFunc) -> Function {
+        Function {
+            fname: name,
+            handler: Some(handler),
+            arg_info: std::ptr::null(),
+            num_args: 0,
+            flags: 0,
+        }
+    }
+
+    pub fn new_with_args(
+        name: *const c_char,
+        handler: HandlerFunc,
+        mut args: Vec<ArgInfo>,
+    ) -> Function {
+        let num_args = args.len() as u32;
+
+        let arg_count = ArgInfo::new(num_args as *const c_char, false, false, false);
+        args.insert(0, arg_count);
+
+        let arg_ptr = Box::into_raw(args.into_boxed_slice()) as *const ArgInfo;
+
+        Function {
+            fname: name,
+            handler: Some(handler),
+            arg_info: arg_ptr,
+            num_args,
+            flags: 0,
+        }
+    }
+
+    pub(crate) fn end() -> Function {
+        Function {
+            fname: std::ptr::null(),
+            handler: None,
+            arg_info: std::ptr::null(),
+            num_args: 0,
+            flags: 0,
+        }
+    }
+}

ivory/src/zend/mod.rs

@@ -0,0 +1,5 @@
+pub use self::module::*;
+pub use self::function::*;
+
+mod module;
+mod function;

ivory/src/zend/module.rs

@@ -0,0 +1,117 @@
+use std;
+use std::mem;
+
+use libc::*;
+
+use crate::zend::function::Function;
+use std::ffi::{CString, CStr};
+
+pub(crate) type StartupFunc = extern "C" fn(type_: c_int, module_number: c_int) -> c_int;
+pub(crate) type ShutdownFunc = extern "C" fn(type_: c_int, module_number: c_int) -> c_int;
+pub(crate) type InfoFunc = extern "C" fn();
+pub(crate) type GlobalsCtorFunc = extern "C" fn(global: *const c_void) -> c_void;
+pub(crate) type GlobalsDtorFunc = extern "C" fn(global: *const c_void) -> c_void;
+pub(crate) type PostDeactivateFunc = extern "C" fn() -> c_int;
+pub(crate) type HandlerFunc = extern "C" fn(execute_data: &ExecuteData, retval: &Value);
+
+pub struct ExecuteData {}
+
+pub struct Value {}
+
+pub struct ModuleDep {}
+
+pub struct INI {}
+
+#[repr(C)]
+pub struct ModuleInternal {
+    size: c_ushort,
+    zend_api: c_uint,
+    zend_debug: c_uchar,
+    zts: c_uchar,
+    ini_entry: *const INI,
+    deps: *const ModuleDep,
+    name: *const c_char,
+    functions: *const Function,
+    module_startup_func: Option<StartupFunc>,
+    module_shutdown_func: Option<ShutdownFunc>,
+    request_startup_func: Option<StartupFunc>,
+    request_shutdown_func: Option<ShutdownFunc>,
+    info_func: Option<InfoFunc>,
+    version: *const c_char,
+    globals_size: size_t,
+    globals_ptr: *const c_void,
+    globals_ctor: Option<GlobalsCtorFunc>,
+    globals_dtor: Option<GlobalsDtorFunc>,
+    post_deactivate_func: Option<PostDeactivateFunc>,
+    module_started: c_int,
+    type_: c_uchar,
+    handle: *const c_void,
+    module_number: c_int,
+    build_id: *const c_char,
+}
+
+impl ModuleInternal {
+    pub fn new(name: *const c_char, version: *const c_char) -> ModuleInternal {
+        ModuleInternal {
+            size: mem::size_of::<ModuleInternal>() as u16,
+            zend_api: 20180731,
+            zend_debug: 0,
+            zts: 0,
+            ini_entry: std::ptr::null(),
+            deps: std::ptr::null(),
+            name,
+            functions: std::ptr::null(),
+            module_startup_func: None,
+            module_shutdown_func: None,
+            request_startup_func: None,
+            request_shutdown_func: None,
+            info_func: None,
+            version,
+            globals_size: 0,
+            globals_ptr: std::ptr::null(),
+            globals_ctor: None,
+            globals_dtor: None,
+            post_deactivate_func: None,
+            module_started: 0,
+            type_: 0,
+            handle: std::ptr::null(),
+            module_number: 0,
+            build_id: c_str!("API20180731,NTS"),
+        }
+    }
+
+    pub fn set_startup_func(&mut self, func: StartupFunc) {
+        self.module_startup_func = Some(func);
+    }
+
+    pub fn set_shutdown_func(&mut self, func: ShutdownFunc) {
+        self.module_shutdown_func = Some(func);
+    }
+
+    pub fn set_info_func(&mut self, func: InfoFunc) {
+        self.info_func = Some(func);
+    }
+
+    pub fn set_functions(&mut self, mut funcs: Vec<Function>) {
+        funcs.push(Function::end());
+        self.functions = Box::into_raw(funcs.into_boxed_slice()) as *const Function;
+    }
+}
+
+pub struct FunctionMeta {
+    pub name: *const c_char,
+    pub arg_names: &'static [*const c_char]
+}
+
+impl FunctionMeta {
+    pub fn into_function(self, func: HandlerFunc) -> Function {
+        Function::new(self.name, func)
+    }
+}
+
+pub struct PhpModule {
+    pub name: *const c_char,
+    pub version: *const c_char,
+    pub functions: &'static [HandlerFunc],
+    pub info: &'static [(&'static str, &'static str)]
+}

src/info.rs

@@ -1,31 +0,0 @@
-use libc::*;
-use std::ffi::CString;
-
-extern "C" {
-    pub fn php_info_print_table_start();
-    pub fn php_info_print_table_row(num_cols: c_int, ...) -> c_void;
-    pub fn php_info_print_table_end();
-}
-
-pub fn print_table_row(values: &[&str]) {
-    let nargs = values.len() as i32;
-
-    if nargs != 2 {
-        unimplemented!();
-    }
-
-    let v1 = CString::new(values[0]).unwrap();
-    let v2 = CString::new(values[1]).unwrap();
-
-    unsafe {
-        php_info_print_table_row(nargs, v1.as_ptr(), v2.as_ptr());
-    };
-}
-
-pub fn print_table_start() {
-    unsafe { php_info_print_table_start() };
-}
-
-pub fn print_table_end() {
-    unsafe { php_info_print_table_end() }
-}

src/lib.rs

@@ -1,7 +0,0 @@
-extern crate libc;
-
-#[macro_use]
-pub mod macros;
-
-pub mod info;
-pub mod zend;

src/zend/mod.rs

@@ -1,3 +0,0 @@
-pub use self::module::*;
-
-mod module;

src/zend/module.rs

@@ -1,181 +0,0 @@
-use std;
-use std::mem;
-
-use libc::*;
-use std::ffi::{CString, CStr};
-
-type StartupFunc = extern "C" fn(type_: c_int, module_number: c_int) -> c_int;
-type ShutdownFunc = extern "C" fn(type_: c_int, module_number: c_int) -> c_int;
-type InfoFunc = extern "C" fn();
-type GlobalsCtorFunc = extern "C" fn(global: *const c_void) -> c_void;
-type GlobalsDtorFunc = extern "C" fn(global: *const c_void) -> c_void;
-type PostDeactivateFunc = extern "C" fn() -> c_int;
-type HandlerFunc = extern "C" fn(execute_data: &ExecuteData, retval: &Value);
-
-pub struct ExecuteData {}
-
-pub struct Value {}
-
-pub struct ModuleDep {}
-
-#[repr(C)]
-pub struct ArgInfo {
-    name: *const c_char,
-    class_name: *const c_char,
-    type_hint: c_uchar,
-    pass_by_reference: c_uchar,
-    allow_null: c_uchar,
-    is_variadic: c_uchar,
-}
-
-impl ArgInfo {
-    pub fn new(
-        name: *const c_char,
-        allow_null: bool,
-        is_variadic: bool,
-        by_reference: bool,
-    ) -> ArgInfo {
-        ArgInfo {
-            name,
-            class_name: std::ptr::null(),
-            type_hint: 0,
-            pass_by_reference: by_reference as c_uchar,
-            allow_null: allow_null as c_uchar,
-            is_variadic: is_variadic as c_uchar,
-        }
-    }
-}
-
-#[repr(C)]
-pub struct Function {
-    fname: *const c_char,
-    handler: Option<HandlerFunc>,
-    arg_info: *const ArgInfo,
-    num_args: u32,
-    flags: u32,
-}
-
-impl Function {
-    pub fn new(name: *const c_char, handler: HandlerFunc) -> Function {
-        Function {
-            fname: name,
-            handler: Some(handler),
-            arg_info: std::ptr::null(),
-            num_args: 0,
-            flags: 0,
-        }
-    }
-
-    pub fn new_with_args(
-        name: *const c_char,
-        handler: HandlerFunc,
-        mut args: Vec<ArgInfo>,
-    ) -> Function {
-        let num_args = args.len() as u32;
-
-        let arg_count = ArgInfo::new(num_args as *const c_char, false, false, false);
-        args.insert(0, arg_count);
-
-        let arg_ptr = args.as_ptr();
-        mem::forget(args);
-
-        Function {
-            fname: name,
-            handler: Some(handler),
-            arg_info: arg_ptr,
-            num_args,
-            flags: 0,
-        }
-    }
-
-    fn end() -> Function {
-        Function {
-            fname: std::ptr::null(),
-            handler: None,
-            arg_info: std::ptr::null(),
-            num_args: 0,
-            flags: 0,
-        }
-    }
-}
-
-pub struct INI {}
-
-#[repr(C)]
-pub struct Module {
-    size: c_ushort,
-    zend_api: c_uint,
-    zend_debug: c_uchar,
-    zts: c_uchar,
-    ini_entry: *const INI,
-    deps: *const ModuleDep,
-    name: *const c_char,
-    functions: *const Function,
-    module_startup_func: Option<StartupFunc>,
-    module_shutdown_func: Option<ShutdownFunc>,
-    request_startup_func: Option<StartupFunc>,
-    request_shutdown_func: Option<ShutdownFunc>,
-    info_func: Option<InfoFunc>,
-    version: *const c_char,
-    globals_size: size_t,
-    globals_ptr: *const c_void,
-    globals_ctor: Option<GlobalsCtorFunc>,
-    globals_dtor: Option<GlobalsDtorFunc>,
-    post_deactivate_func: Option<PostDeactivateFunc>,
-    module_started: c_int,
-    type_: c_uchar,
-    handle: *const c_void,
-    module_number: c_int,
-    build_id: *const c_char,
-}
-
-impl Module {
-    pub fn new(name: *const c_char, version: *const c_char) -> Module {
-        Module {
-            size: mem::size_of::<Module>() as u16,
-            zend_api: 20180731,
-            zend_debug: 0,
-            zts: 0,
-            ini_entry: std::ptr::null(),
-            deps: std::ptr::null(),
-            name,
-            functions: std::ptr::null(),
-            module_startup_func: None,
-            module_shutdown_func: None,
-            request_startup_func: None,
-            request_shutdown_func: None,
-            info_func: None,
-            version,
-            globals_size: 0,
-            globals_ptr: std::ptr::null(),
-            globals_ctor: None,
-            globals_dtor: None,
-            post_deactivate_func: None,
-            module_started: 0,
-            type_: 0,
-            handle: std::ptr::null(),
-            module_number: 0,
-            build_id: c_str!("API20180731,NTS"),
-        }
-    }
-
-    pub fn set_startup_func(&mut self, func: StartupFunc) {
-        self.module_startup_func = Some(func);
-    }
-
-    pub fn set_shutdown_func(&mut self, func: ShutdownFunc) {
-        self.module_shutdown_func = Some(func);
-    }
-
-    pub fn set_info_func(&mut self, func: InfoFunc) {
-        self.info_func = Some(func);
-    }
-
-    pub fn set_functions(&mut self, mut funcs: Vec<Function>) {
-        funcs.push(Function::end());
-        self.functions = funcs.as_ptr();
-        mem::forget(funcs);
-    }
-}
-
-unsafe impl Sync for Module {}