2 files changed, 8 insertions, 5 deletions
diff --git a/pkg/lang/ast/expr.go b/pkg/lang/ast/expr.go
index f98f9b3..b0ed599 100644
--- a/pkg/lang/ast/expr.go
+++ b/pkg/lang/ast/expr.go
@@ -1,6 +1,8 @@
 package ast
 
-import "jinx/pkg/libs/source"
+import (
+	"jinx/pkg/libs/source"
+)
 
 type ExprKind int
 
@@ -24,6 +26,10 @@ const (
 
 type Expr ExprT[any]
 
+func (e Expr) IsEmpty() bool {
+	return e == Expr{}
+}
+
 type ExprT[T any] struct {
 	At    source.Loc
 	Kind  ExprKind
diff --git a/pkg/lang/ast/stmt.go b/pkg/lang/ast/stmt.go
index e25dee9..6395f57 100644
--- a/pkg/lang/ast/stmt.go
+++ b/pkg/lang/ast/stmt.go
@@ -47,10 +47,7 @@ type StmtVarDecl struct {
 }
 
 type StmtIf struct {
-	Cond  Expr
-	Then  BlockNode
-	Elifs []CondNode
-	Else  BlockNode
+	Conds  []CondNode
 }
 
 type StmtTry struct {