Upgrade dependent version: github.com/open-policy-agent/opa (#5315)

Upgrade dependent version: github.com/open-policy-agent/opa v0.18.0 -> v0.45.0

Signed-off-by: hongzhouzi <hongzhouzi@kubesphere.io>

Signed-off-by: hongzhouzi <hongzhouzi@kubesphere.io>

vendor/github.com/open-policy-agent/opa/topdown/numbers.go

@@ -0,0 +1,99 @@
+// Copyright 2020 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 topdown
+
+import (
+	"fmt"
+	"math/big"
+
+	"github.com/open-policy-agent/opa/ast"
+	"github.com/open-policy-agent/opa/topdown/builtins"
+)
+
+type randIntCachingKey string
+
+var one = big.NewInt(1)
+
+func builtinNumbersRange(bctx BuiltinContext, operands []*ast.Term, iter func(*ast.Term) error) error {
+
+	x, err := builtins.BigIntOperand(operands[0].Value, 1)
+	if err != nil {
+		return err
+	}
+
+	y, err := builtins.BigIntOperand(operands[1].Value, 2)
+	if err != nil {
+		return err
+	}
+
+	result := ast.NewArray()
+	cmp := x.Cmp(y)
+	haltErr := Halt{
+		Err: &Error{
+			Code:    CancelErr,
+			Message: "numbers.range: timed out before generating all numbers in range",
+		},
+	}
+
+	if cmp <= 0 {
+		for i := new(big.Int).Set(x); i.Cmp(y) <= 0; i = i.Add(i, one) {
+			if bctx.Cancel != nil && bctx.Cancel.Cancelled() {
+				return haltErr
+			}
+			result = result.Append(ast.NewTerm(builtins.IntToNumber(i)))
+		}
+	} else {
+		for i := new(big.Int).Set(x); i.Cmp(y) >= 0; i = i.Sub(i, one) {
+			if bctx.Cancel != nil && bctx.Cancel.Cancelled() {
+				return haltErr
+			}
+			result = result.Append(ast.NewTerm(builtins.IntToNumber(i)))
+		}
+	}
+
+	return iter(ast.NewTerm(result))
+}
+
+func builtinRandIntn(bctx BuiltinContext, args []*ast.Term, iter func(*ast.Term) error) error {
+
+	strOp, err := builtins.StringOperand(args[0].Value, 1)
+	if err != nil {
+		return err
+
+	}
+
+	n, err := builtins.IntOperand(args[1].Value, 2)
+	if err != nil {
+		return err
+	}
+
+	if n == 0 {
+		return iter(ast.IntNumberTerm(0))
+	}
+
+	if n < 0 {
+		n = -n
+	}
+
+	var key = randIntCachingKey(fmt.Sprintf("%s-%d", strOp, n))
+
+	if val, ok := bctx.Cache.Get(key); ok {
+		return iter(val.(*ast.Term))
+	}
+
+	r, err := bctx.Rand()
+	if err != nil {
+		return err
+	}
+	result := ast.IntNumberTerm(r.Intn(n))
+	bctx.Cache.Put(key, result)
+
+	return iter(result)
+}
+
+func init() {
+	RegisterBuiltinFunc(ast.NumbersRange.Name, builtinNumbersRange)
+	RegisterBuiltinFunc(ast.RandIntn.Name, builtinRandIntn)
+}