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| author | Josh Meredith <joshmeredith2008@gmail.com> | 2023-03-06 09:18:03 +0000 |
|---|---|---|
| committer | Josh Meredith <joshmeredith2008@gmail.com> | 2023-04-11 10:27:20 +0000 |
| commit | ffb4fc49cc57c411dcd2d83f8b5e6c3fb48923b7 (patch) | |
| tree | 5951ce0b43bfc9870c026bd16099b9539547ec99 /testsuite/tests/javascript/js-callback05.hs | |
| parent | 3ba77b369a170ba68f4eb5c8f3ae13e03dcbb28d (diff) | |
| download | haskell-wip/js-exports.tar.gz | |
Base/JS: GHC.JS.Foreign.Callback module (issue 23126)wip/js-exports
* Add the Callback module for "exporting" Haskell functions
to be available to plain JavaScript code
* Fix some primitives defined in GHC.JS.Prim
* Add a JavaScript section to the user guide with instructions
on how to use the JavaScript FFI, building up to using Callbacks
to interact with the browser
* Add tests for the JavaScript FFI and Callbacks
Diffstat (limited to 'testsuite/tests/javascript/js-callback05.hs')
| -rw-r--r-- | testsuite/tests/javascript/js-callback05.hs | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/testsuite/tests/javascript/js-callback05.hs b/testsuite/tests/javascript/js-callback05.hs new file mode 100644 index 0000000000..075b151b5c --- /dev/null +++ b/testsuite/tests/javascript/js-callback05.hs @@ -0,0 +1,19 @@ +import GHC.JS.Prim +import GHC.JS.Foreign.Callback +import System.IO + +foreign import javascript "((f) => { f(); })" + js_apply0_ :: Callback (IO ()) -> IO () + +main :: IO () +main = do + log <- syncCallback ThrowWouldBlock (putStrLn "test" >> hFlush stdout) + js_apply0_ log + js_apply0_ log + + log <- syncCallback ThrowWouldBlock (putStrLn "test1" >> hFlush stdout) + log <- syncCallback ThrowWouldBlock (putStrLn "test2" >> hFlush stdout) + log <- syncCallback ThrowWouldBlock (putStrLn "test3" >> hFlush stdout) + js_apply0_ log1 + js_apply0_ log2 + js_apply0_ log3 |