decoder: Implement reference targets for Object

decoder/expr_object.go

@@ -1,9 +1,6 @@
 package decoder
 
 import (
-	"context"
-
-	"github.com/hashicorp/hcl-lang/reference"
 	"github.com/hashicorp/hcl-lang/schema"
 	"github.com/hashicorp/hcl/v2"
 )
@@ -13,8 +10,3 @@ type Object struct {
 	cons    schema.Object
 	pathCtx *PathContext
 }
-
-func (obj Object) ReferenceTargets(ctx context.Context, targetCtx *TargetContext) reference.Targets {
-	// TODO
-	return nil
-}

decoder/expr_object_ref_targets.go

@@ -0,0 +1,44 @@
+package decoder
+
+import (
+	"context"
+
+	"github.com/hashicorp/hcl-lang/reference"
+	"github.com/hashicorp/hcl/v2/hclsyntax"
+)
+
+func (obj Object) ReferenceTargets(ctx context.Context, targetCtx *TargetContext) reference.Targets {
+	eType, ok := obj.expr.(*hclsyntax.ObjectConsExpr)
+	if !ok {
+		return reference.Targets{}
+	}
+
+	if len(eType.Items) == 0 || len(obj.cons.Attributes) == 0 {
+		return reference.Targets{}
+	}
+
+	targets := make(reference.Targets, 0)
+
+	// TODO: collect parent target for the whole object
+
+	// for _, item := range eType.Items {
+	// 	keyName, _, ok := getRawObjectConsKeyName(item.KeyExpr)
+	// 	if !ok {
+	// 		// avoid collecting item w/ invalid key
+	// 		continue
+	// 	}
+
+	// 	expr := newExpression(m.pathCtx, item.ValueExpr, m.cons.Elem)
+	// 	if e, ok := expr.(ReferenceTargetsExpression); ok {
+
+	// 		elemAddr := addr.Copy()
+	// 		elemAddr = append(elemAddr, lang.IndexStep{
+	// 			Key: cty.StringVal(keyName),
+	// 		})
+
+	// 		targets = append(targets, e.ReferenceTargets(ctx, elemTargetCtx)...)
+	// 	}
+	// }
+
+	return targets
+}