Move -referencing asserts to constructor body. (#12478)
diff --git a/packages/flutter/lib/src/cupertino/route.dart b/packages/flutter/lib/src/cupertino/route.dart
index 46355ad..a2a9b3a 100644
--- a/packages/flutter/lib/src/cupertino/route.dart
+++ b/packages/flutter/lib/src/cupertino/route.dart
@@ -88,8 +88,9 @@
assert(settings != null),
assert(maintainState != null),
assert(fullscreenDialog != null),
- assert(opaque), // PageRoute makes it return true.
- super(settings: settings, fullscreenDialog: fullscreenDialog);
+ super(settings: settings, fullscreenDialog: fullscreenDialog) {
+ assert(opaque); // PageRoute makes it return true.
+ }
/// Builds the primary contents of the route.
final WidgetBuilder builder;
diff --git a/packages/flutter/lib/src/material/page.dart b/packages/flutter/lib/src/material/page.dart
index 967277d..a400175 100644
--- a/packages/flutter/lib/src/material/page.dart
+++ b/packages/flutter/lib/src/material/page.dart
@@ -70,8 +70,9 @@
this.maintainState: true,
bool fullscreenDialog: false,
}) : assert(builder != null),
- assert(opaque),
- super(settings: settings, fullscreenDialog: fullscreenDialog);
+ super(settings: settings, fullscreenDialog: fullscreenDialog) {
+ assert(opaque);
+ }
/// Builds the primary contents of the route.
final WidgetBuilder builder;
diff --git a/packages/flutter/lib/src/widgets/pages.dart b/packages/flutter/lib/src/widgets/pages.dart
index 6923837..026d6d0 100644
--- a/packages/flutter/lib/src/widgets/pages.dart
+++ b/packages/flutter/lib/src/widgets/pages.dart
@@ -81,10 +81,11 @@
this.maintainState: true,
}) : assert(pageBuilder != null),
assert(transitionsBuilder != null),
- assert(opaque != null),
assert(barrierDismissible != null),
assert(maintainState != null),
- super(settings: settings);
+ super(settings: settings) {
+ assert(opaque != null);
+ }
/// Used build the route's primary contents.
///
