From 5d3016f46a80b981434fdbe2ff861929f7788b2d Mon Sep 17 00:00:00 2001
From: "pengfei.zhou" <pengfeizhou@foxmail.com>
Date: Tue, 31 Mar 2020 11:59:33 +0800
Subject: [PATCH] js:fix list renderBunchedItems array size <0

---
 doric-js/bundle/doric-lib.es5.js | 2 +-
 doric-js/bundle/doric-lib.js     | 2 +-
 doric-js/bundle/doric-vm.js      | 2 +-
 doric-js/lib/src/widget/list.js  | 2 +-
 doric-js/src/widget/list.ts      | 2 +-
 doric-web/dist/index.js          | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/doric-js/bundle/doric-lib.es5.js b/doric-js/bundle/doric-lib.es5.js
index e2572521..364d30cd 100644
--- a/doric-js/bundle/doric-lib.es5.js
+++ b/doric-js/bundle/doric-lib.es5.js
@@ -1839,7 +1839,7 @@ var List = /** @class */ (function (_super) {
     List.prototype.renderBunchedItems = function (start, length) {
         var _this = this;
         this.ignoreDirtyCallOnce = true;
-        return new Array(Math.min(length, this.itemCount - start)).fill(0).map(function (_, idx) {
+        return new Array(Math.max(0, Math.min(length, this.itemCount - start))).fill(0).map(function (_, idx) {
             var listItem = _this.getItem(start + idx);
             return listItem.toModel();
         });
diff --git a/doric-js/bundle/doric-lib.js b/doric-js/bundle/doric-lib.js
index 947a3dae..89d7110f 100644
--- a/doric-js/bundle/doric-lib.js
+++ b/doric-js/bundle/doric-lib.js
@@ -1360,7 +1360,7 @@ class List extends Superview {
     }
     renderBunchedItems(start, length) {
         this.ignoreDirtyCallOnce = true;
-        return new Array(Math.min(length, this.itemCount - start)).fill(0).map((_, idx) => {
+        return new Array(Math.max(0, Math.min(length, this.itemCount - start))).fill(0).map((_, idx) => {
             const listItem = this.getItem(start + idx);
             return listItem.toModel();
         });
diff --git a/doric-js/bundle/doric-vm.js b/doric-js/bundle/doric-vm.js
index 559fe603..d7938f32 100644
--- a/doric-js/bundle/doric-vm.js
+++ b/doric-js/bundle/doric-vm.js
@@ -2819,7 +2819,7 @@ class List extends Superview {
     }
     renderBunchedItems(start, length) {
         this.ignoreDirtyCallOnce = true;
-        return new Array(Math.min(length, this.itemCount - start)).fill(0).map((_, idx) => {
+        return new Array(Math.max(0, Math.min(length, this.itemCount - start))).fill(0).map((_, idx) => {
             const listItem = this.getItem(start + idx);
             return listItem.toModel();
         });
diff --git a/doric-js/lib/src/widget/list.js b/doric-js/lib/src/widget/list.js
index 14df5f68..e38db723 100644
--- a/doric-js/lib/src/widget/list.js
+++ b/doric-js/lib/src/widget/list.js
@@ -67,7 +67,7 @@ export class List extends Superview {
     }
     renderBunchedItems(start, length) {
         this.ignoreDirtyCallOnce = true;
-        return new Array(Math.min(length, this.itemCount - start)).fill(0).map((_, idx) => {
+        return new Array(Math.max(0, Math.min(length, this.itemCount - start))).fill(0).map((_, idx) => {
             const listItem = this.getItem(start + idx);
             return listItem.toModel();
         });
diff --git a/doric-js/src/widget/list.ts b/doric-js/src/widget/list.ts
index e148c208..5d39cf9f 100644
--- a/doric-js/src/widget/list.ts
+++ b/doric-js/src/widget/list.ts
@@ -106,7 +106,7 @@ export class List extends Superview implements IList {
 
     private renderBunchedItems(start: number, length: number) {
         this.ignoreDirtyCallOnce = true
-        return new Array(Math.min(length, this.itemCount - start)).fill(0).map((_, idx) => {
+        return new Array(Math.max(0, Math.min(length, this.itemCount - start))).fill(0).map((_, idx) => {
             const listItem = this.getItem(start + idx)
             return listItem.toModel()
         })
diff --git a/doric-web/dist/index.js b/doric-web/dist/index.js
index 9aa68934..0a8701f9 100644
--- a/doric-web/dist/index.js
+++ b/doric-web/dist/index.js
@@ -2877,7 +2877,7 @@ class List extends Superview {
     }
     renderBunchedItems(start, length) {
         this.ignoreDirtyCallOnce = true;
-        return new Array(Math.min(length, this.itemCount - start)).fill(0).map((_, idx) => {
+        return new Array(Math.max(0, Math.min(length, this.itemCount - start))).fill(0).map((_, idx) => {
             const listItem = this.getItem(start + idx);
             return listItem.toModel();
         });