Fix a crash due to infinite recursion (#194)

Author: jathak

CHANGELOG.md

@@ -1,3 +1,10 @@
+## 1.4.3
+
+### Division Migrator
+
+* Fix a crash when encountering parentheses in an expression that's definitely
+  not division.
+
 ## 1.4.2
 
 ### Division Migrator

lib/src/migrators/division.dart

@@ -378,7 +378,9 @@ class _DivisionMigrationVisitor extends MigrationVisitor {
 
   /// Returns true if [node] contains an interpolation.
   bool _containsInterpolation(Expression node) {
-    if (node is ParenthesizedExpression) return _containsInterpolation(node);
+    if (node is ParenthesizedExpression) {
+      return _containsInterpolation(node.expression);
+    }
     if (node is BinaryOperationExpression) {
       return _containsInterpolation(node.left) ||
           _containsInterpolation(node.right);

pubspec.yaml

@@ -1,5 +1,5 @@
 name: sass_migrator
-version: 1.4.2
+version: 1.4.3
 description: A tool for running migrations on Sass files
 author: Jennifer Thakar <[email protected]>
 homepage: https://github.com/sass/migrator

test/migrators/division/never_division.hrx

@@ -6,6 +6,7 @@
   e: (bold 6px/3px sans-serif);
   f: 6 / three;
   g: rgb(10 20 30 / 0.5);
+  h: (2 + 3) / text;
 }
 
 <==> log.txt