Print runtime warning in previews. (#135)

* Print runtime warning in previews. * Use legacy previews
pointfreeco · Sep 30, 2024 · d3fd23c · d3fd23c
1 parent 27d767d
commit d3fd23c
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diff --git a/Examples/Examples/ExamplesApp.swift b/Examples/Examples/ExamplesApp.swift
@@ -26,3 +26,10 @@ class ItemsModel {
     return lastItem
   }
 }
+
+struct Previews: PreviewProvider {
+  static var previews: some View {
+    let model = ItemsModel()
+    Text(model.lastItem?.description ?? "No last item")
+  }
+}
diff --git a/Sources/IssueReporting/IssueReporters/RuntimeWarningReporter.swift b/Sources/IssueReporting/IssueReporters/RuntimeWarningReporter.swift
@@ -66,6 +66,11 @@ public struct _RuntimeWarningReporter: IssueReporter {
     column: UInt
   ) {
     #if canImport(os)
+    guard ProcessInfo.processInfo.environment["XCODE_RUNNING_FOR_PREVIEWS"] != "1"
+    else {
+      print("🟣 \(fileID):\(line): \(message() ?? "")")
+      return
+    }
       let moduleName = String(
         Substring("\(fileID)".utf8.prefix(while: { $0 != UTF8.CodeUnit(ascii: "/") }))
       )