chore: import upstream snapshot with attribution

2026-07-13 12:33:42 +08:00
commit a06f331eb8
3186 changed files with 689843 additions and 0 deletions
@@ -0,0 +1,41 @@
+package graph
+
+import "testing"
+
+func TestRefContextOf(t *testing.T) {
+	cases := []struct {
+		name string
+		kind EdgeKind
+		from NodeKind
+		meta map[string]any
+		want string
+	}{
+		{"return", EdgeReturns, KindFunction, nil, RefContextReturnType},
+		{"param", EdgeTypedAs, KindParam, nil, RefContextParameterType},
+		{"field", EdgeTypedAs, KindField, nil, RefContextField},
+		{"value_var", EdgeTypedAs, KindVariable, nil, RefContextValue},
+		{"value_local", EdgeTypedAs, KindLocal, nil, RefContextValue},
+		{"typed_other", EdgeTypedAs, KindType, nil, RefContextType},
+		{"attribute", EdgeAnnotated, KindFunction, nil, RefContextAttribute},
+		{"type_ref", EdgeReferences, KindFunction, nil, RefContextType},
+		{"implements", EdgeImplements, KindType, nil, RefContextType},
+		{"read", EdgeReads, KindFunction, nil, RefContextValue},
+		{"call", EdgeCalls, KindFunction, nil, RefContextCall},
+		{"instantiate", EdgeInstantiates, KindFunction, nil, RefContextCall},
+		{"meta_override", EdgeReferences, KindFunction, map[string]any{"ref_context": RefContextGenericArg}, RefContextGenericArg},
+		{"import", EdgeImports, KindFile, nil, RefContextImport},
+		{"re_export", EdgeReExports, KindFile, nil, RefContextImport},
+		{"no_context", EdgeContains, KindFile, nil, ""},
+	}
+	for _, c := range cases {
+		t.Run(c.name, func(t *testing.T) {
+			e := &Edge{Kind: c.kind, Meta: c.meta}
+			if got := RefContextOf(e, c.from); got != c.want {
+				t.Errorf("RefContextOf(%s, from=%s) = %q, want %q", c.kind, c.from, got, c.want)
+			}
+		})
+	}
+	if RefContextOf(nil, KindFunction) != "" {
+		t.Error("nil edge must classify as empty context")
+	}
+}