Produce a panic if a user incorrectly tries to run Vecty without a br…

…owser (e.g. under node) (#181) Fixes #74
hexops · Dec 5, 2017 · 65aacee · 65aacee
1 parent 3b33b65
commit 65aacee
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Showing 2 changed files with 12 additions and 10 deletions.
diff --git a/dom.go b/dom.go
@@ -1268,3 +1268,15 @@ func (w wrappedObject) Float() float64 {
 }
 
 var isTest bool
+
+func init() {
+	if isTest {
+		return
+	}
+	if global == nil {
+		panic("vecty: only GopherJS compiler is supported")
+	}
+	if global.Get("document") == undefined {
+		panic("vecty: only running inside a browser is supported")
+	}
+}
diff --git a/gopherjs_only.go b/gopherjs_only.go