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Make wraps easily unwrappable

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This commit is contained in:
Matthias Beyer 2017-01-21 16:07:24 +01:00
parent 2d9ddb8a49
commit 91a60093b7
1 changed files with 25 additions and 1 deletions
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26
libimagruby/src/store.rs
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@ -22,6 +22,22 @@ trait Wrap {
fn wrap(self) -> AnyObject; fn wrap(self) -> AnyObject;
} }
trait Unwrap {
type Target;
fn unwrap<'a>(&'a self) -> &'a mut Self::Target;
}
macro_rules! impl_unwrap {
($from: ty, $to: ty, $wrapper: path) => {
impl Unwrap for $from {
type Target = $to;
fn unwrap<'a>(&'a self) -> &'a mut $to {
self.get_data(&*($wrapper))
}
}
}
}
macro_rules! impl_verified_object { macro_rules! impl_verified_object {
($objname: ty) => { ($objname: ty) => {
impl VerifiedObject for $objname { impl VerifiedObject for $objname {
@ -76,9 +92,11 @@ pub mod storeid {
use ruru::{Class, Object, AnyObject, Boolean, RString, NilClass, VerifiedObject}; use ruru::{Class, Object, AnyObject, Boolean, RString, NilClass, VerifiedObject};
use libimagstore::storeid::StoreId; use libimagstore::storeid::StoreId;
use store::Unwrap;
wrappable_struct!(StoreId, StoreIdWrapper, STOREID_WRAPPER); wrappable_struct!(StoreId, StoreIdWrapper, STOREID_WRAPPER);
class!(RStoreId); class!(RStoreId);
impl_unwrap!(RStoreId, StoreId, STOREID_WRAPPER);
impl_verified_object!(RStoreId); impl_verified_object!(RStoreId);
use store::Wrap; use store::Wrap;
@ -228,6 +246,7 @@ pub mod store {
use ruby_utils::IntoToml; use ruby_utils::IntoToml;
use toml_utils::IntoRuby; use toml_utils::IntoRuby;
use store::Wrap; use store::Wrap;
use store::Unwrap;
pub struct FLECustomWrapper(Box<FLE<'static>>); pub struct FLECustomWrapper(Box<FLE<'static>>);
@ -247,6 +266,7 @@ pub mod store {
wrappable_struct!(FLECustomWrapper, FileLockEntryWrapper, FLE_WRAPPER); wrappable_struct!(FLECustomWrapper, FileLockEntryWrapper, FLE_WRAPPER);
class!(RFileLockEntry); class!(RFileLockEntry);
impl_unwrap!(RFileLockEntry, FLECustomWrapper, FLE_WRAPPER);
impl_verified_object!(RFileLockEntry); impl_verified_object!(RFileLockEntry);
methods!( methods!(
@ -304,7 +324,7 @@ pub mod store {
wrappable_struct!(EntryHeader, EntryHeaderWrapper, ENTRY_HEADER_WRAPPER); wrappable_struct!(EntryHeader, EntryHeaderWrapper, ENTRY_HEADER_WRAPPER);
class!(REntryHeader); class!(REntryHeader);
impl_unwrap!(REntryHeader, EntryHeader, ENTRY_HEADER_WRAPPER);
impl_verified_object!(REntryHeader); impl_verified_object!(REntryHeader);
impl Wrap for EntryHeader { impl Wrap for EntryHeader {
@ -369,6 +389,7 @@ pub mod store {
wrappable_struct!(EntryContent, EntryContentWrapper, ENTRY_CONTENT_WRAPPER); wrappable_struct!(EntryContent, EntryContentWrapper, ENTRY_CONTENT_WRAPPER);
class!(REntryContent); class!(REntryContent);
impl_unwrap!(REntryContent, EntryContent, ENTRY_CONTENT_WRAPPER);
impl Wrap for EntryContent { impl Wrap for EntryContent {
fn wrap(self) -> AnyObject { fn wrap(self) -> AnyObject {
@ -378,6 +399,7 @@ pub mod store {
wrappable_struct!(Entry, EntryWrapper, ENTRY_WRAPPER); wrappable_struct!(Entry, EntryWrapper, ENTRY_WRAPPER);
class!(REntry); class!(REntry);
impl_unwrap!(REntry, Entry, ENTRY_WRAPPER);
pub fn setup_filelockentry() -> Class { pub fn setup_filelockentry() -> Class {
let mut class = Class::new("RFileLockEntry", None); let mut class = Class::new("RFileLockEntry", None);
@ -418,9 +440,11 @@ pub mod store {
use ruby_utils::IntoToml; use ruby_utils::IntoToml;
use toml_utils::IntoRuby; use toml_utils::IntoRuby;
use store::Wrap; use store::Wrap;
use store::Unwrap;
wrappable_struct!(Store, StoreWrapper, STORE_WRAPPER); wrappable_struct!(Store, StoreWrapper, STORE_WRAPPER);
class!(RStore); class!(RStore);
impl_unwrap!(RStore, Store, STORE_WRAPPER);
impl_verified_object!(RStore); impl_verified_object!(RStore);
impl Wrap for Store { impl Wrap for Store {