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-rw-r--r--stmutil/context.go3
1 files changed, 3 insertions, 0 deletions
diff --git a/stmutil/context.go b/stmutil/context.go
index 49f211c..75e3f8a 100644
--- a/stmutil/context.go
+++ b/stmutil/context.go
@@ -7,6 +7,9 @@ import (
)
func ContextDoneVar(ctx context.Context) (*stm.Var, func()) {
+ if ctx.Err() != nil {
+ return stm.NewVar(true), func() {}
+ }
ctx, cancel := context.WithCancel(ctx)
_var := stm.NewVar(false)
go func() {