[incubator-echarts] branch next updated: fix(legend): fix logic issue caused null pointer access.

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shenyi pushed a commit to branch next
in repository https://gitbox.apache.org/repos/asf/incubator-echarts.git


The following commit(s) were added to refs/heads/next by this push:
     new ca10b34  fix(legend): fix logic issue caused null pointer access.
ca10b34 is described below

commit ca10b34893bae99189c54939ffe926bca64f2a31
Author: pissang <bm...@gmail.com>
AuthorDate: Wed Jul 29 20:33:27 2020 +0800

    fix(legend): fix logic issue caused null pointer access.
---
 src/component/legend/LegendView.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/component/legend/LegendView.ts b/src/component/legend/LegendView.ts
index 6bb9326..54a2f38 100644
--- a/src/component/legend/LegendView.ts
+++ b/src/component/legend/LegendView.ts
@@ -589,7 +589,7 @@ function isUseHoverLayer(api: ExtensionAPI) {
     let emphasisState: DisplayableState;
     let i = 0;
     const len = list.length;
-    while (!(emphasisState = list[i].states.emphasis) && i < len) {
+    while (i < len && !(emphasisState = list[i].states.emphasis)) {
         i++;
     }
     return emphasisState && emphasisState.hoverLayer;


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