fix(overmind): only allow mutations when possible

christianalfoni · christianalfoni · commit d938139b0440 · 2020-08-12T11:24:06.000+02:00
diff --git a/packages/node_modules/overmind/src/statemachine.ts b/packages/node_modules/overmind/src/statemachine.ts
@@ -50,7 +50,8 @@ class StateMachine<States extends TStates, State extends TStates = States>  {
   matches(state) {
     if (state === this.state) {
       const tree = (this[PROXY_TREE].master.mutationTree || this[PROXY_TREE])
-      tree.enableMutations()
+      // Might be used outside of action
+      tree.enableMutations && tree.enableMutations()
       return true
     }
 

Original file line number	Diff line number	Diff line change
`@@ -50,7 +50,8 @@ class StateMachine<States extends TStates, State extends TStates = States> {`
`50`	`50`	`matches(state) {`
`51`	`51`	`if (state === this.state) {`
`52`	`52`	`const tree = (this[PROXY_TREE].master.mutationTree \|\| this[PROXY_TREE])`
`53`		`- tree.enableMutations()`
	`53`	`+ // Might be used outside of action`
	`54`	`+ tree.enableMutations && tree.enableMutations()`
`54`	`55`	`return true`
`55`	`56`	`}`
`56`	`57`