refactor(core): remove state snapshot functionality and add debug Las…

…tError shard
fragcolor-xyz · Jan 15, 2025 · 17e62b8 · 17e62b8
1 parent 3db1e3f
commit 17e62b8
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Showing 2 changed files with 13 additions and 14 deletions.
diff --git a/shards/core/runtime.hpp b/shards/core/runtime.hpp
@@ -160,20 +160,6 @@ struct SHContext {
     return out;
   }
 
-  SHStateSnapshot takeStateSnapshot() {
-    return SHStateSnapshot{
-        state,
-        std::move(flowStorage),
-        std::move(errorMessage),
-    };
-  }
-
-  void restoreStateSnapshot(SHStateSnapshot &&snapshot) {
-    errorMessage = std::move(snapshot.errorMessage);
-    state = std::move(snapshot.state);
-    flowStorage = std::move(snapshot.flowStorage);
-  }
-
   constexpr void rebaseFlow() { state = SHWireState::Rebase; }
 
   constexpr void continueFlow() { state = SHWireState::Continue; }

diff --git a/shards/modules/debug/debug.cpp b/shards/modules/debug/debug.cpp
@@ -88,6 +88,18 @@ struct DumpWireStack {
   }
 };
 
+struct LastError {
+  static SHTypesInfo inputTypes() { return shards::CoreInfo::AnyType; }
+  static SHTypesInfo outputTypes() { return shards::CoreInfo::AnyType; }
+  static SHOptionalString help() { return SHCCSTR("Outputs the last error"); }
+
+  OwnedVar _lastError;
+
+  SHVar &activate(SHContext *shContext, const SHVar &input) {
+    _lastError = Var(shContext->getErrorMessage());
+    return _lastError;
+  }
+};
 } // namespace shards::Debug
 
 namespace shards {
@@ -96,5 +108,6 @@ SHARDS_REGISTER_FN(debug) {
   REGISTER_SHARD("Debug.Noop", DebugNoop);
   REGISTER_SHARD("Debug.DumpEnv", DumpEnv);
   REGISTER_SHARD("Debug.WireStack", DumpWireStack);
+  REGISTER_SHARD("Debug.LastError", LastError);
 }
 } // namespace shards