[core] Fix crash at Placement::getSymbolPlacement()

pozdnyakov · pozdnyakov · commit a70b33be8bd6 · 2020-03-13T14:30:17.000+02:00
diff --git a/src/mbgl/text/placement.cpp b/src/mbgl/text/placement.cpp
@@ -1235,7 +1235,7 @@ float Placement::zoomAdjustment(const float zoom) const {
 const JointPlacement* Placement::getSymbolPlacement(const SymbolInstance& symbol) const {
     assert(symbol.crossTileID != 0);
     auto found = placements.find(symbol.crossTileID);
-    return (found == placements.end()) ? &found->second : nullptr;
+    return (found != placements.end()) ? &found->second : nullptr;
 }
 
 Duration Placement::getUpdatePeriod(const float zoom) const {

Original file line number	Diff line number	Diff line change
`@@ -1235,7 +1235,7 @@ float Placement::zoomAdjustment(const float zoom) const {`
`1235`	`1235`	`const JointPlacement* Placement::getSymbolPlacement(const SymbolInstance& symbol) const {`
`1236`	`1236`	`assert(symbol.crossTileID != 0);`
`1237`	`1237`	`auto found = placements.find(symbol.crossTileID);`
`1238`		`- return (found == placements.end()) ? &found->second : nullptr;`
	`1238`	`+ return (found != placements.end()) ? &found->second : nullptr;`
`1239`	`1239`	`}`
`1240`	`1240`
`1241`	`1241`	`Duration Placement::getUpdatePeriod(const float zoom) const {`