From f9e1f651332e72dde74795e949932166c0ef0848 Mon Sep 17 00:00:00 2001
From: dcode <dcode@dcode.io>
Date: Sat, 25 May 2019 19:22:19 +0200
Subject: [PATCH] fix 'no-unbound-method'

---
 src/flow.ts | 31 ++++++++++++++++---------------
 1 file changed, 16 insertions(+), 15 deletions(-)

diff --git a/src/flow.ts b/src/flow.ts
index 31d71179..87cccfe2 100644
--- a/src/flow.ts
+++ b/src/flow.ts
@@ -295,20 +295,6 @@ export class Flow {
     return branch;
   }
 
-  private static findUsedLocals(expr: ExpressionRef, blocked: Set<i32>): void {
-    switch (getExpressionId(expr)) {
-      case ExpressionId.LocalGet: {
-        blocked.add(getGetLocalIndex(expr));
-        break;
-      }
-      case ExpressionId.LocalSet: {
-        blocked.add(getSetLocalIndex(expr));
-        break;
-      }
-      default: traverse(expr, blocked, Flow.findUsedLocals);
-    }
-  }
-
   /** Gets a free temporary local of the specified type. */
   getTempLocal(type: Type, except: ExpressionRef = 0): Local {
     var parentFunction = this.parentFunction;
@@ -324,7 +310,7 @@ export class Flow {
     var local: Local;
     if (except) {
       let usedLocals = new Set<i32>();
-      traverse(except, usedLocals, Flow.findUsedLocals);
+      traverse(except, usedLocals, findUsedLocals);
       if (temps) {
         for (let i = 0, k = temps.length; i < k; ++i) {
           if (!usedLocals.has(temps[i].index)) {
@@ -1089,3 +1075,18 @@ function canConversionOverflow(fromType: Type, toType: Type): bool {
       || fromType.size > toType.size
       || fromType.is(TypeFlags.SIGNED) != toType.is(TypeFlags.SIGNED);
 }
+
+/** A visitor function for use with `traverse` that finds all indexes of used locals. */
+function findUsedLocals(expr: ExpressionRef, used: Set<i32>): void {
+  switch (getExpressionId(expr)) {
+    case ExpressionId.LocalGet: {
+      used.add(getGetLocalIndex(expr));
+      break;
+    }
+    case ExpressionId.LocalSet: {
+      used.add(getSetLocalIndex(expr));
+      break;
+    }
+    default: traverse(expr, used, findUsedLocals);
+  }
+}