lib/svg/path: swap out large if-else for switch

lib/svg/path.dart

@@ -572,27 +572,35 @@ class Path extends ListBase<SvgPath> {
         parts.add("M ${coord(segment.start)}");
       }
 
-      if (segment is Line) {
+      switch (segment) {
-        parts.add("L ${coord(segment.end)}");
+        case Line _:
-      } else if (segment is CubicBezier) {
+          parts.add("L ${coord(segment.end)}");
-        if (segment.isSmoothFrom(previousSegment)) {
+          break;
-          parts.add("S ${coord(segment.control2)} ${coord(segment.end)}");
+
-        } else {
+        case CubicBezier _:
+          if (segment.isSmoothFrom(previousSegment)) {
+            parts.add("S ${coord(segment.control2)} ${coord(segment.end)}");
+          } else {
+            parts.add(
+              "C ${coord(segment.control1)} ${coord(segment.control2)} ${coord(segment.end)}",
+            );
+          }
+          break;
+
+        case QuadraticBezier _:
+          if (segment.isSmoothFrom(previousSegment)) {
+            parts.add("T ${coord(segment.end)}");
+          } else {
+            parts.add("Q ${coord(segment.control)} ${coord(segment.end)}");
+          }
+          break;
+
+        case Arc _:
           parts.add(
-            "C ${coord(segment.control1)} ${coord(segment.control2)} ${coord(segment.end)}",
+            "A ${coord(segment.radius)} ${formatNumber(segment.rotation)} "
+            "${segment.arc ? 1 : 0},${segment.sweep ? 1 : 0} ${coord(segment.end)}",
           );
-        }
+          break;
-      } else if (segment is QuadraticBezier) {
-        if (segment.isSmoothFrom(previousSegment)) {
-          parts.add("T ${coord(segment.end)}");
-        } else {
-          parts.add("Q ${coord(segment.control)} ${coord(segment.end)}");
-        }
-      } else if (segment is Arc) {
-        parts.add(
-          "A ${coord(segment.radius)} ${formatNumber(segment.rotation)} "
-          "${segment.arc ? 1 : 0},${segment.sweep ? 1 : 0} ${coord(segment.end)}",
-        );
       }
 
       currentPos = segment.end;