Initial QSfera import

Server/vendor/github.com/open-policy-agent/opa/v1/ast/schema.go

@@ -0,0 +1,54 @@
+// Copyright 2021 The OPA Authors.  All rights reserved.
+// Use of this source code is governed by an Apache2
+// license that can be found in the LICENSE file.
+
+package ast
+
+import (
+	"fmt"
+
+	"github.com/open-policy-agent/opa/v1/types"
+	"github.com/open-policy-agent/opa/v1/util"
+)
+
+// SchemaSet holds a map from a path to a schema.
+type SchemaSet struct {
+	m *util.HasherMap[Ref, any]
+}
+
+// NewSchemaSet returns an empty SchemaSet.
+func NewSchemaSet() *SchemaSet {
+	return &SchemaSet{
+		m: util.NewHasherMap[Ref, any](RefEqual),
+	}
+}
+
+// Put inserts a raw schema into the set.
+func (ss *SchemaSet) Put(path Ref, raw any) {
+	ss.m.Put(path, raw)
+}
+
+// Get returns the raw schema identified by the path.
+func (ss *SchemaSet) Get(path Ref) any {
+	if ss != nil {
+		if x, ok := ss.m.Get(path); ok {
+			return x
+		}
+	}
+	return nil
+}
+
+func loadSchema(raw any, allowNet []string) (types.Type, error) {
+
+	jsonSchema, err := compileSchema(raw, allowNet)
+	if err != nil {
+		return nil, err
+	}
+
+	tpe, err := newSchemaParser().parseSchema(jsonSchema.RootSchema)
+	if err != nil {
+		return nil, fmt.Errorf("type checking: %w", err)
+	}
+
+	return tpe, nil
+}