controllogic: debug value is Value (array-capable); lua get narrows to scalar

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

internal/controllogic/debug.go

@@ -12,11 +12,11 @@ import (
 // only meaningful when HasValue is true (e.g. an action.write's written value or
 // a flow.if branch as 0/1); otherwise the event just marks the node as active.
 type DebugEvent struct {
-	GraphID  string  `json:"graphId"`
+	GraphID  string `json:"graphId"`
-	NodeID   string  `json:"nodeId"`
+	NodeID   string `json:"nodeId"`
-	Value    float64 `json:"value"`
+	Value    any    `json:"value"`
-	HasValue bool    `json:"hasValue"`
+	HasValue bool   `json:"hasValue"`
-	TS       int64   `json:"ts"` // unix millis
+	TS       int64  `json:"ts"` // unix millis
 }
 
 // DebugObserver receives node-execution events from running (and simulated)
@@ -83,7 +83,7 @@ func (e *Engine) FireTrigger(graphID, triggerID string) bool {
 
 // emitDebug reports a node execution to the observer when the graph is watched
 // (or the graph is a simulate sandbox, which is always its own subscriber).
-func (cg *compiledGraph) emitDebug(nodeID string, value float64, hasValue bool) {
+func (cg *compiledGraph) emitDebug(nodeID string, value Value, hasValue bool) {
 	if !cg.alwaysDebug {
 		w, _ := cg.engine.debugWatch.Load().(map[string]bool)
 		if !w[cg.id] {

internal/controllogic/debug_test.go

@@ -79,7 +79,7 @@ func TestDebugObserverCapturesNodeValues(t *testing.T) {
 	if !ok {
 		t.Fatal("no event for write node 'w'")
 	}
-	if !wEv.HasValue || wEv.Value != 42 {
+	if !wEv.HasValue || wEv.Value != 42.0 {
 		t.Errorf("write node event = %+v, want value 42 hasValue true", wEv)
 	}
 	if wEv.GraphID != "g1" {
@@ -136,7 +136,7 @@ func TestFireTriggerForcesRun(t *testing.T) {
 		}
 		time.Sleep(10 * time.Millisecond)
 	}
-	if !wEv.HasValue || wEv.Value != 42 {
+	if !wEv.HasValue || wEv.Value != 42.0 {
 		t.Errorf("write node event = %+v, want value 42 hasValue true", wEv)
 	}
 
@@ -187,7 +187,7 @@ func TestSimulateSuppressesWrites(t *testing.T) {
 	if !ok {
 		t.Fatal("simulate produced no event for write node 'w'")
 	}
-	if !wEv.HasValue || wEv.Value != 42 {
+	if !wEv.HasValue || wEv.Value != 42.0 {
 		t.Errorf("simulate write event = %+v, want value 42 hasValue true", wEv)
 	}
 	if wEv.GraphID != "sim" {

internal/controllogic/engine.go

@@ -1053,11 +1053,7 @@ func (cg *compiledGraph) run(nodeID string, ctx *runCtx) {
 
 	case "action.write":
 		val := EvalValue(node.param("expr"), ctx.resolve)
-		f, isNum := val.(float64)
+		cg.emitDebug(node.ID, val, true)
-		if !isNum {
-			f = math.NaN()
-		}
-		cg.emitDebug(node.ID, f, true)
 		cg.engine.write(cg, node.param("target"), val)
 		cg.follow(node.ID, "out", ctx)
 

internal/controllogic/engine_test.go

@@ -110,3 +110,11 @@ func TestResolverReturnsLocalValue(t *testing.T) {
 		t.Fatalf("sum(buf) = %v", v)
 	}
 }
+
+func TestEmitDebugAcceptsArray(t *testing.T) {
+	g := Graph{ID: "g", Name: "n"}
+	cg := compile(g)
+	cg.engine = &Engine{} // no observer installed; emitDebug must not panic
+	cg.emitDebug("x", []Value{1.0, 2.0}, true)
+	cg.emitDebug("x", 3.0, true)
+}

internal/controllogic/lua.go

@@ -1,6 +1,7 @@
 package controllogic
 
 import (
+	"math"
 	"sync"
 
 	lua "github.com/yuin/gopher-lua"
@@ -60,9 +61,9 @@ func (lr *luaRuntime) ensure() error {
 	L.SetGlobal("get", L.NewFunction(func(s *lua.LState) int {
 		target := s.CheckString(1)
 		ds, name, ok := parseRef(target)
-		var v float64
+		v := math.NaN()
-		if ok && lr.curResolve != nil { // shim: Task 6 finalizes lua Value handling
+		if ok && lr.curResolve != nil {
-			if f, fok := lr.curResolve(ds, name).(float64); fok {
+			if f, isNum := lr.curResolve(ds, name).(float64); isNum {
 				v = f
 			}
 		}

internal/server/debughub.go

@@ -55,12 +55,12 @@ func NewDebugHub(engine *controllogic.Engine, log *slog.Logger) *DebugHub {
 
 // debugOut is the client-bound JSON form of a node-execution event.
 type debugOut struct {
-	Type     string  `json:"type"` // always "debugNode"
+	Type     string `json:"type"` // always "debugNode"
-	GraphID  string  `json:"graphId"`
+	GraphID  string `json:"graphId"`
-	NodeID   string  `json:"nodeId"`
+	NodeID   string `json:"nodeId"`
-	Value    float64 `json:"value"`
+	Value    any    `json:"value"`
-	HasValue bool    `json:"hasValue"`
+	HasValue bool   `json:"hasValue"`
-	TS       int64   `json:"ts"`
+	TS       int64  `json:"ts"`
 }
 
 // Observe implements controllogic.DebugObserver: push the event to every client