chore: import upstream snapshot with attribution

internal/parser/languages/java_difield_test.go

@@ -0,0 +1,81 @@
+package languages
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"github.com/zzet/gortex/internal/graph"
+)
+
+// A `this.<field>.<method>()` call must stamp the same receiver_type as the
+// bare `<field>.<method>()` spelling, resolved through the enclosing class's
+// declared field type.
+func TestJavaExtractor_ThisFieldReceiverType(t *testing.T) {
+	src := []byte(`public class OwnerController {
+    private final OwnerRepository owners;
+    public OwnerController(OwnerRepository owners) { this.owners = owners; }
+    public void find() {
+        this.owners.findByLastNameStartingWith("Smith");
+        owners.findById(1);
+    }
+}
+`)
+	e := NewJavaExtractor()
+	result, err := e.Extract("OwnerController.java", src)
+	require.NoError(t, err)
+
+	got := map[string]string{}
+	for _, edge := range edgesOfKind(result.Edges, graph.EdgeCalls) {
+		if edge.Meta == nil {
+			continue
+		}
+		if rt, ok := edge.Meta["receiver_type"].(string); ok {
+			got[edge.To] = rt
+		}
+	}
+	assert.Equal(t, "OwnerRepository", got["unresolved::*.findByLastNameStartingWith"],
+		"this.owners.findByLastNameStartingWith() must stamp receiver_type=OwnerRepository")
+	assert.Equal(t, "OwnerRepository", got["unresolved::*.findById"],
+		"owners.findById() must stamp the identical receiver_type as the this.-qualified spelling")
+}
+
+// Interface and enum method nodes keep the flat `<file>::<name>` ID but must
+// carry their declaring type as Meta["receiver"] so typed call resolution can
+// bind to them.
+func TestJavaExtractor_InterfaceEnumMethodReceiverMeta(t *testing.T) {
+	iface := []byte(`public interface OwnerRepository {
+    Owner findByLastNameStartingWith(String lastName);
+}
+`)
+	e := NewJavaExtractor()
+	result, err := e.Extract("OwnerRepository.java", iface)
+	require.NoError(t, err)
+
+	var m *graph.Node
+	for _, n := range result.Nodes {
+		if n.Kind == graph.KindMethod && n.Name == "findByLastNameStartingWith" {
+			m = n
+		}
+	}
+	require.NotNil(t, m, "interface method node must exist")
+	assert.Equal(t, "OwnerRepository.java::findByLastNameStartingWith", m.ID, "flat node ID must be preserved")
+	require.NotNil(t, m.Meta)
+	assert.Equal(t, "OwnerRepository", m.Meta["receiver"], "interface method node must carry receiver meta")
+
+	enumSrc := []byte(`public enum Kind {
+    A, B;
+    public String label() { return name(); }
+}
+`)
+	res2, err := e.Extract("Kind.java", enumSrc)
+	require.NoError(t, err)
+	var em *graph.Node
+	for _, n := range res2.Nodes {
+		if n.Kind == graph.KindMethod && n.Name == "label" {
+			em = n
+		}
+	}
+	require.NotNil(t, em, "enum method node must exist")
+	assert.Equal(t, "Kind", em.Meta["receiver"], "enum method node must carry receiver meta")
+}