From: Brad Fitzpatrick <bradfitz@golang.org>
Date: Wed, 15 Jan 2020 20:26:56 +0000 (+0000)
Subject: misc/wasm: avoid implicit boolean to number conversion
X-Git-Tag: go1.15beta1~1063
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=46f9aea80197bfdf4c024c3f5a71be51a2facf59;p=gostls13.git

misc/wasm: avoid implicit boolean to number conversion

Fixes #36561

Change-Id: I20cbf95ef4fd7c5c255a93ed3ec3e027a0ce2bc2
Reviewed-on: https://go-review.googlesource.com/c/go/+/214944
Reviewed-by: Richard Musiol <neelance@gmail.com>
---

diff --git a/misc/wasm/wasm_exec.js b/misc/wasm/wasm_exec.js
index bb66cf254d..5ac4032993 100644
--- a/misc/wasm/wasm_exec.js
+++ b/misc/wasm/wasm_exec.js
@@ -440,7 +440,7 @@
 
 					// func valueInstanceOf(v ref, t ref) bool
 					"syscall/js.valueInstanceOf": (sp) => {
-						this.mem.setUint8(sp + 24, loadValue(sp + 8) instanceof loadValue(sp + 16));
+						this.mem.setUint8(sp + 24, (loadValue(sp + 8) instanceof loadValue(sp + 16)) ? 1 : 0);
 					},
 
 					// func copyBytesToGo(dst []byte, src ref) (int, bool)