From b2e282b30c1e32990c4fe3dd39e282490ebc00a0 Mon Sep 17 00:00:00 2001
From: christianalfoni <christianalfoni@gmail.com>
Date: Mon, 4 Feb 2019 18:55:50 +0100
Subject: [PATCH] fix(proxy-state-tree): remove optimization that causes issue
 with addMutationListener

---
 .../proxy-state-tree/src/Proxyfier.ts         | 70 +++++++------------
 .../proxy-state-tree/src/index.test.ts        | 40 -----------
 2 files changed, 27 insertions(+), 83 deletions(-)

diff --git a/packages/node_modules/proxy-state-tree/src/Proxyfier.ts b/packages/node_modules/proxy-state-tree/src/Proxyfier.ts
index 1986d74d..c51697ad 100644
--- a/packages/node_modules/proxy-state-tree/src/Proxyfier.ts
+++ b/packages/node_modules/proxy-state-tree/src/Proxyfier.ts
@@ -90,15 +90,6 @@ export class Proxifier {
     }
   }
 
-  shouldTrackMutations(path) {
-    return (
-      this.tree.master.options.devmode ||
-      // We need the !! to avoid weird types for shouldTrackMutations that
-      // actually break (because they contain references to 'src')
-      !!(path && this.tree.master.pathDependencies[path])
-    )
-  }
-
   ensureMutationTrackingIsEnabled(path) {
     if (this.tree.master.options.devmode && !this.tree.canMutate()) {
       throw new Error(
@@ -183,10 +174,7 @@ export class Proxifier {
 
             const method = String(prop)
 
-            if (
-              arrayMutations.has(method) &&
-              proxifier.shouldTrackMutations(nestedPath)
-            ) {
+            if (arrayMutations.has(method)) {
               // On POP we can optimally remove cached proxy by removing the specific one
               // that was removed. If it is a PUSH, we do not have to remove anything, as
               // existing proxies stays the same
@@ -318,24 +306,22 @@ export class Proxifier {
               proxifier.tree.master.removeProxy(nestedPath)
             }
 
-            if (proxifier.shouldTrackMutations(nestedPath)) {
-              let objectChangePath
+            let objectChangePath
 
-              if (!(prop in target)) {
-                objectChangePath = path
-              }
+            if (!(prop in target)) {
+              objectChangePath = path
+            }
 
-              const mutationTree = proxifier.getMutationTree()
+            const mutationTree = proxifier.getMutationTree()
 
-              mutationTree.addMutation(
-                {
-                  method: 'set',
-                  path: nestedPath,
-                  args: [value],
-                },
-                objectChangePath
-              )
-            }
+            mutationTree.addMutation(
+              {
+                method: 'set',
+                path: nestedPath,
+                args: [value],
+              },
+              objectChangePath
+            )
 
             if (typeof value === 'function') {
               return Reflect.set(target, prop, () => value)
@@ -352,23 +338,21 @@ export class Proxifier {
               proxifier.tree.master.removeProxy(nestedPath)
             }
 
-            if (proxifier.shouldTrackMutations(nestedPath)) {
-              let objectChangePath
-              if (prop in target) {
-                objectChangePath = path
-              }
+            let objectChangePath
+            if (prop in target) {
+              objectChangePath = path
+            }
 
-              const mutationTree = proxifier.getMutationTree()
+            const mutationTree = proxifier.getMutationTree()
 
-              mutationTree.addMutation(
-                {
-                  method: 'unset',
-                  path: nestedPath,
-                  args: [],
-                },
-                objectChangePath
-              )
-            }
+            mutationTree.addMutation(
+              {
+                method: 'unset',
+                path: nestedPath,
+                args: [],
+              },
+              objectChangePath
+            )
 
             delete target[prop]
 
diff --git a/packages/node_modules/proxy-state-tree/src/index.test.ts b/packages/node_modules/proxy-state-tree/src/index.test.ts
index ef33da14..50e7f315 100644
--- a/packages/node_modules/proxy-state-tree/src/index.test.ts
+++ b/packages/node_modules/proxy-state-tree/src/index.test.ts
@@ -829,46 +829,6 @@ describe('ITERATIONS', () => {
   })
 })
 
-describe('PRODUCTION', () => {
-  it('should track mutations for observed paths', () => {
-    const tree = new ProxyStateTree(
-      {
-        items: [
-          {
-            title: 'foo',
-          },
-          {
-            title: 'bar',
-          },
-        ],
-      },
-      {
-        devmode: false,
-      }
-    )
-
-    const accessTree = tree.getTrackStateTree().track(() => {})
-    const mutationTree = tree.getMutationTree()
-    accessTree.state.items[0].title
-
-    mutationTree.state.items[0].title = 'foo1'
-    delete mutationTree.state.items[0].title
-    mutationTree.state.items[1].title = 'bar2' // this mutation should not be tracked
-    expect(mutationTree.mutations).toEqual([
-      {
-        method: 'set',
-        path: 'items.0.title',
-        args: ['foo1'],
-      },
-      {
-        method: 'unset',
-        path: 'items.0.title',
-        args: [],
-      },
-    ])
-  })
-})
-
 describe('RESCOPING', () => {
   it('should be able to change scope of state', () => {
     const tree = new ProxyStateTree({