From 8dd16259287f58f9273002717ec4d27e97127719 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 12 Jun 2024 07:43:14 +0200
Subject: Merging upstream version 127.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../tests/wasm/js-promise-integration/gc-2.js      | 69 ++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 js/src/jit-test/tests/wasm/js-promise-integration/gc-2.js

(limited to 'js/src/jit-test/tests/wasm/js-promise-integration/gc-2.js')

diff --git a/js/src/jit-test/tests/wasm/js-promise-integration/gc-2.js b/js/src/jit-test/tests/wasm/js-promise-integration/gc-2.js
new file mode 100644
index 0000000000..d17539807e
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/js-promise-integration/gc-2.js
@@ -0,0 +1,69 @@
+// Example from the proposal.
+
+gczeal(2,5);
+
+var compute_delta = (i) => Promise.resolve(i / 100 || 1);
+
+var suspending_compute_delta = new WebAssembly.Function(
+    { parameters: ['externref', 'i32'], results: ['f64'] },
+    compute_delta,
+    { suspending: "first" }
+);
+
+var ins = wasmEvalText(`(module
+    (import "js" "init_state" (func $init_state (result f64)))
+    (import "js" "compute_delta"
+      (func $compute_delta_import (param externref) (param i32) (result f64)))
+
+    (global $suspender (mut externref) (ref.null extern))
+    (global $state (mut f64) (f64.const nan))
+    (func $init (global.set $state (call $init_state)))
+    (start $init)
+
+    (func $compute_delta (param i32) (result f64)
+      (local $suspender_copy externref)
+      (;return  (f64.const 0.3);)
+      (;unreachable;)
+      (global.get $suspender)
+      (local.tee $suspender_copy)
+      (local.get 0)
+      (call $compute_delta_import)
+      (local.get $suspender_copy)
+      (global.set $suspender)
+      (return)
+    )
+    (func $get_state (export "get_state") (result f64) (global.get $state))
+    (func $update_state (param i32) (result f64)
+      (global.set $state (f64.add
+        (global.get $state) (call $compute_delta (local.get 0))))
+      (global.get $state)
+    )
+
+    (func (export "update_state_export")
+      (param $suspender externref) (param i32) (result f64)
+      (local.get $suspender)
+      (global.set $suspender)
+      (local.get 1)
+      (call $update_state)
+      (return)
+    )
+)`, {
+    js: {
+        init_state() { return 0; },
+        compute_delta: suspending_compute_delta,
+    },
+});
+
+var update_state = new WebAssembly.Function(
+    { parameters: ['i32'], results: ['externref'] },
+    ins.exports.update_state_export,
+    { promising: "first" }
+);
+
+var res = update_state(4);
+var tasks = res.then((r) => {
+    print(r);
+    assertEq(ins.exports.get_state(), .04);
+});
+
+assertEq(ins.exports.get_state(), 0);
-- 
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