[null-safety] try updating snippets for null safety (#68723)

Add a language version so the snippets do not opt-in automatically. Fixes #68719

[null-safety] try updating snippets for null safety (#68723)
Add a language version so the snippets do not opt-in automatically. Fixes #68719
16029c38 · Jonah Williams · GitHub · a655a177 · 16029c38 · 16029c38
Unverified Commit 16029c38 authored Oct 22, 2020 by Jonah Williams Committed by GitHub Oct 22, 2020
17 changed files
--- a/dev/snippets/config/templates/stateful_widget.tmpl
+++ b/dev/snippets/config/templates/stateful_widget.tmpl
 /// Flutter code sample for {{element}}
+// @dart = 2.9
 {{description}}

--- a/dev/snippets/config/templates/stateful_widget_cupertino.tmpl
+++ b/dev/snippets/config/templates/stateful_widget_cupertino.tmpl
 /// Flutter code sample for {{element}}
+// @dart = 2.9
 {{description}}

--- a/dev/snippets/config/templates/stateful_widget_cupertino_page_scaffold.tmpl
+++ b/dev/snippets/config/templates/stateful_widget_cupertino_page_scaffold.tmpl
 /// Flutter code sample for {{element}}
+// @dart = 2.9
 {{description}}

--- a/dev/snippets/config/templates/stateful_widget_cupertino_ticker.tmpl
+++ b/dev/snippets/config/templates/stateful_widget_cupertino_ticker.tmpl
 /// Flutter code sample for {{element}}
+// @dart = 2.9
 {{description}}

--- a/dev/snippets/config/templates/stateful_widget_material.tmpl
+++ b/dev/snippets/config/templates/stateful_widget_material.tmpl
 /// Flutter code sample for {{element}}
+// @dart = 2.9
 {{description}}

--- a/dev/snippets/config/templates/stateful_widget_material_ticker.tmpl
+++ b/dev/snippets/config/templates/stateful_widget_material_ticker.tmpl
 /// Flutter code sample for {{element}}
+// @dart = 2.9
 {{description}}

--- a/dev/snippets/config/templates/stateful_widget_restoration.tmpl
+++ b/dev/snippets/config/templates/stateful_widget_restoration.tmpl
 /// Flutter code sample for {{element}}
+// @dart = 2.9
 {{description}}

--- a/dev/snippets/config/templates/stateful_widget_scaffold.tmpl
+++ b/dev/snippets/config/templates/stateful_widget_scaffold.tmpl
 /// Flutter code sample for {{element}}
+// @dart = 2.9
 {{description}}

--- a/dev/snippets/config/templates/stateful_widget_scaffold_center.tmpl
+++ b/dev/snippets/config/templates/stateful_widget_scaffold_center.tmpl
 /// Flutter code sample for {{element}}
+// @dart = 2.9
 {{description}}

--- a/dev/snippets/config/templates/stateful_widget_scaffold_center_freeform_state.tmpl
+++ b/dev/snippets/config/templates/stateful_widget_scaffold_center_freeform_state.tmpl
 /// Flutter code sample for {{element}}
+// @dart = 2.9
 {{description}}

--- a/dev/snippets/config/templates/stateful_widget_ticker.tmpl
+++ b/dev/snippets/config/templates/stateful_widget_ticker.tmpl
 /// Flutter code sample for {{element}}
+// @dart = 2.9
 {{description}}

--- a/dev/snippets/config/templates/stateless_widget.tmpl
+++ b/dev/snippets/config/templates/stateless_widget.tmpl
 /// Flutter code sample for {{element}}
+// @dart = 2.9
 {{description}}

--- a/dev/snippets/config/templates/stateless_widget_cupertino.tmpl
+++ b/dev/snippets/config/templates/stateless_widget_cupertino.tmpl
 /// Flutter code sample for {{element}}
+// @dart = 2.9
 {{description}}

--- a/dev/snippets/config/templates/stateless_widget_cupertino_page_scaffold.tmpl
+++ b/dev/snippets/config/templates/stateless_widget_cupertino_page_scaffold.tmpl
 /// Flutter code sample for {{element}}
+// @dart = 2.9
 {{description}}

--- a/dev/snippets/config/templates/stateless_widget_material.tmpl
+++ b/dev/snippets/config/templates/stateless_widget_material.tmpl
 /// Flutter code sample for {{element}}
+// @dart = 2.9
 {{description}}

--- a/dev/snippets/config/templates/stateless_widget_scaffold.tmpl
+++ b/dev/snippets/config/templates/stateless_widget_scaffold.tmpl
 /// Flutter code sample for {{element}}
+// @dart = 2.9
 {{description}}

--- a/dev/snippets/config/templates/stateless_widget_scaffold_center.tmpl
+++ b/dev/snippets/config/templates/stateless_widget_scaffold_center.tmpl
 /// Flutter code sample for {{element}}
+// @dart = 2.9
 {{description}}