Rename and use the 1.55 ABI for 1.54

[rust.git] / crates / proc_macro_srv / src / abis / mod.rs

diff --git a/crates/proc_macro_srv/src/abis/mod.rs b/crates/proc_macro_srv/src/abis/mod.rs
index 3b30aaa90bd2f0da6be86aaf2676d8f4612ad716..c78e88dcb8d8834c738e561cd5b09e7ac59684fe 100644 (file)
--- a/crates/proc_macro_srv/src/abis/mod.rs
+++ b/crates/proc_macro_srv/src/abis/mod.rs
@@ -25,11 +25,15 @@
 
 // pub(crate) so tests can use the TokenStream, more notes in test/utils.rs
 pub(crate) mod abi_1_47;
-mod abi_1_55;
+mod abi_1_54;
+mod abi_1_56;
+mod abi_1_58;
 
 use super::dylib::LoadProcMacroDylibError;
 pub(crate) use abi_1_47::Abi as Abi_1_47;
-pub(crate) use abi_1_55::Abi as Abi_1_55;
+pub(crate) use abi_1_54::Abi as Abi_1_54;
+pub(crate) use abi_1_56::Abi as Abi_1_56;
+pub(crate) use abi_1_58::Abi as Abi_1_58;
 use libloading::Library;
 use proc_macro_api::{ProcMacroKind, RustCInfo};
 
@@ -45,7 +49,9 @@ pub fn as_str(&self) -> Option<String> {
 
 pub(crate) enum Abi {
     Abi1_47(Abi_1_47),
-    Abi1_55(Abi_1_55),
+    Abi1_54(Abi_1_54),
+    Abi1_56(Abi_1_56),
+    Abi1_58(Abi_1_58),
 }
 
 impl Abi {
@@ -63,16 +69,26 @@ pub fn from_lib(
         symbol_name: String,
         info: RustCInfo,
     ) -> Result<Abi, LoadProcMacroDylibError> {
-        if info.version.0 != 1 {
-            Err(LoadProcMacroDylibError::UnsupportedABI)
-        } else if info.version.1 < 47 {
-            Err(LoadProcMacroDylibError::UnsupportedABI)
-        } else if info.version.1 < 54 {
-            let inner = unsafe { Abi_1_47::from_lib(lib, symbol_name) }?;
-            Ok(Abi::Abi1_47(inner))
-        } else {
-            let inner = unsafe { Abi_1_55::from_lib(lib, symbol_name) }?;
-            Ok(Abi::Abi1_55(inner))
+        // FIXME: this should use exclusive ranges when they're stable
+        // https://github.com/rust-lang/rust/issues/37854
+        match (info.version.0, info.version.1) {
+            (1, 47..=53) => {
+                let inner = unsafe { Abi_1_47::from_lib(lib, symbol_name) }?;
+                Ok(Abi::Abi1_47(inner))
+            }
+            (1, 54..=55) => {
+                let inner = unsafe { Abi_1_54::from_lib(lib, symbol_name) }?;
+                Ok(Abi::Abi1_54(inner))
+            }
+            (1, 56..=57) => {
+                let inner = unsafe { Abi_1_56::from_lib(lib, symbol_name) }?;
+                Ok(Abi::Abi1_56(inner))
+            }
+            (1, 58..) => {
+                let inner = unsafe { Abi_1_58::from_lib(lib, symbol_name) }?;
+                Ok(Abi::Abi1_58(inner))
+            }
+            _ => Err(LoadProcMacroDylibError::UnsupportedABI),
         }
     }
 
@@ -83,15 +99,19 @@ pub fn expand(
         attributes: Option<&tt::Subtree>,
     ) -> Result<tt::Subtree, PanicMessage> {
         match self {
-            Self::Abi1_55(abi) => abi.expand(macro_name, macro_body, attributes),
             Self::Abi1_47(abi) => abi.expand(macro_name, macro_body, attributes),
+            Self::Abi1_54(abi) => abi.expand(macro_name, macro_body, attributes),
+            Self::Abi1_56(abi) => abi.expand(macro_name, macro_body, attributes),
+            Self::Abi1_58(abi) => abi.expand(macro_name, macro_body, attributes),
         }
     }
 
     pub fn list_macros(&self) -> Vec<(String, ProcMacroKind)> {
         match self {
             Self::Abi1_47(abi) => abi.list_macros(),
-            Self::Abi1_55(abi) => abi.list_macros(),
+            Self::Abi1_54(abi) => abi.list_macros(),
+            Self::Abi1_56(abi) => abi.list_macros(),
+            Self::Abi1_58(abi) => abi.list_macros(),
         }
     }
 }