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authorLuite Stegeman <stegeman@gmail.com>2023-02-01 15:00:29 +0900
committerBen Gamari <ben@smart-cactus.org>2023-02-23 14:05:44 -0500
commit54fc7394040e42aea3b088bc6a3d0bb4f6bb533d (patch)
tree15e3849f70ffdc1c156ea34ada2497e404710f5c /compiler
parente0cfea59a3027a48d4d51b0b80b7b1e42183c274 (diff)
downloadhaskell-54fc7394040e42aea3b088bc6a3d0bb4f6bb533d.tar.gz
Check for platform support for JavaScript foreign imports
GHC was accepting `foreign import javascript` declarations on non-JavaScript platforms. This adds a check so that these are only supported on an platform that supports the JavaScript calling convention. Fixes #22774 (cherry picked from commit 1d7c2e4c9d63a7b392024cfcde299849b8d667a8)
Diffstat (limited to 'compiler')
-rw-r--r--compiler/GHC/Tc/Gen/Foreign.hs3
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/GHC/Tc/Gen/Foreign.hs b/compiler/GHC/Tc/Gen/Foreign.hs
index caa7feeca7..31c42f86d6 100644
--- a/compiler/GHC/Tc/Gen/Foreign.hs
+++ b/compiler/GHC/Tc/Gen/Foreign.hs
@@ -341,9 +341,10 @@ tcCheckFIType arg_tys res_ty idecl@(CImport src (L lc cconv) (L ls safety) mh
checkForeignRes nonIOok checkSafe (isFFIPrimResultTy dflags) res_ty
return (CImport src (L lc cconv) (L ls safety) mh (CFunction target))
| cconv == JavaScriptCallConv = do
+ cconv' <- checkCConv (Right idecl) cconv
checkCg (Right idecl) backendValidityOfCImport
-- leave the rest to the JS backend (at least for now)
- return (CImport src (L lc cconv) (L ls safety) mh (CFunction target))
+ return (CImport src (L lc cconv') (L ls safety) mh (CFunction target))
| otherwise = do -- Normal foreign import
checkCg (Right idecl) backendValidityOfCImport
cconv' <- checkCConv (Right idecl) cconv