Add cli go.sum

cli/go.sum

@@ -0,0 +1,8 @@
+github.com/alecthomas/assert/v2 v2.11.0 h1:2Q9r3ki8+JYXvGsDyBXwH3LcJ+WK5D0gc5E8vS6K3D0=
+github.com/alecthomas/assert/v2 v2.11.0/go.mod h1:Bze95FyfUr7x34QZrjL+XP+0qgp/zg8yS+TtBj1WA3k=
+github.com/alecthomas/kong v1.5.1 h1:9quB93P2aNGXf5C1kWNei85vjBgITNJQA4dSwJQGCOY=
+github.com/alecthomas/kong v1.5.1/go.mod h1:p2vqieVMeTAnaC83txKtXe8FLke2X07aruPWXyMPQrU=
+github.com/alecthomas/repr v0.4.0 h1:GhI2A8MACjfegCPVq9f1FLvIBS+DrQ2KQBFZP1iFzXc=
+github.com/alecthomas/repr v0.4.0/go.mod h1:Fr0507jx4eOXV7AlPV6AVZLYrLIuIeSOWtW57eE/O/4=
+github.com/hexops/gotextdiff v1.0.3 h1:gitA9+qJrrTCsiCl7+kh75nPqQt1cx4ZkudSTLoUqJM=
+github.com/hexops/gotextdiff v1.0.3/go.mod h1:pSWU5MAI3yDq+fZBTazCSJysOMbxWL1BSow5/V2vxeg=

core/nodes.go

@@ -27,6 +27,7 @@ const (
 	CallNodeType
 	FunctionNodeType
 	ReturnNodeType
+	BreakpointNodeType
 )
 
 func (n NodeType) String() string {
@@ -292,3 +293,13 @@ func (n ReturnNode) Type() NodeType {
 func (n ReturnNode) String() string {
 	return fmt.Sprintf("return %s", n.value)
 }
+
+type BreakpointNode struct{}
+
+func (n BreakpointNode) Type() NodeType {
+	return BreakpointNodeType
+}
+
+func (n BreakpointNode) String() string {
+	return "breakpoint"
+}

core/parser.go

@@ -391,6 +391,11 @@ func (p *Parser) statement() Node {
 			p.condition(),
 		}
 
+	case TokenBreakpoint:
+		p.advance()
+
+		return &BreakpointNode{}
+
 	default:
 		p.error("invalid statement", p.curr)
 		p.advance()