1342 lines
26 KiB
Go
1342 lines
26 KiB
Go
// Copyright © 2016 Abcum Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package db
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import (
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"context"
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"math"
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"reflect"
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"regexp"
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"strconv"
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"strings"
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"time"
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"golang.org/x/text/language"
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"golang.org/x/text/search"
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"github.com/abcum/surreal/cnf"
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"github.com/abcum/surreal/sql"
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"github.com/abcum/surreal/util/data"
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"github.com/abcum/surreal/util/deep"
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"github.com/abcum/surreal/util/fncs"
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)
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var ign = data.New()
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func (e *executor) fetch(ctx context.Context, val interface{}, doc *data.Doc) (out interface{}, err error) {
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switch val := val.(type) {
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default:
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return val, nil
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case *sql.Null:
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return nil, nil
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case *sql.Value:
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return val.VA, nil
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case []byte:
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return string(val), nil
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case int:
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return float64(val), nil
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case int8:
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return float64(val), nil
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case int16:
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return float64(val), nil
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case int32:
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return float64(val), nil
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case int64:
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return float64(val), nil
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case uint:
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return float64(val), nil
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case uint16:
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return float64(val), nil
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case uint32:
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return float64(val), nil
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case uint64:
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return float64(val), nil
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case float32:
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return float64(val), nil
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case float64:
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return float64(val), nil
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case []interface{}:
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return deep.Copy(val), nil
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case map[string]interface{}:
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return deep.Copy(val), nil
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case *sql.Regex:
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return regexp.Compile(val.VA)
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case *sql.Ident:
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switch {
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default:
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return val, nil
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case doc == ign:
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return val, queryIdentFailed
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case doc != nil:
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fnc := func(key string, val interface{}, path []string) interface{} {
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if len(path) > 0 {
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switch res := val.(type) {
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case []interface{}:
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val := make([]interface{}, len(res))
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for k, v := range res {
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switch tng := v.(type) {
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case *sql.Thing:
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val[k], _ = e.fetchThing(ctx, tng, doc)
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default:
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val[k] = v
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}
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}
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return val
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case *sql.Thing:
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val, _ = e.fetchThing(ctx, res, doc)
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return val
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}
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}
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return val
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}
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res := doc.Fetch(fnc, val.VA).Data()
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return e.fetch(ctx, res, doc)
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}
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case *sql.Param:
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if len(val.VA) > 0 {
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for _, s := range paramSearchKeys {
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if obj, ok := ctx.Value(s).(*data.Doc); ok {
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fnc := func(key string, val interface{}, path []string) interface{} {
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if len(path) > 0 {
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switch res := val.(type) {
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case []interface{}:
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val := make([]interface{}, len(res))
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for k, v := range res {
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switch tng := v.(type) {
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case *sql.Thing:
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val[k], _ = e.fetchThing(ctx, tng, doc)
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default:
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val[k] = v
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}
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}
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return val
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case *sql.Thing:
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val, _ = e.fetchThing(ctx, res, doc)
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return val
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}
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}
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return val
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}
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res := obj.Fetch(fnc, val.VA).Data()
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if res != nil {
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return e.fetch(ctx, res, doc)
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}
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}
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}
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}
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return nil, nil
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case *sql.RunStatement:
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return e.fetch(ctx, val.Expr, doc)
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case *sql.FuncExpression:
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var args []interface{}
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for _, v := range val.Args {
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val, err := e.fetch(ctx, v, doc)
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if err != nil {
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return nil, err
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}
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args = append(args, val)
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}
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res, err := fncs.Run(ctx, val.Name, args...)
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if err != nil {
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return nil, err
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}
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return e.fetch(ctx, res, doc)
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case *sql.SubExpression:
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switch exp := val.Expr.(type) {
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default:
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return e.fetch(ctx, exp, doc)
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case *sql.IfelseStatement:
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return e.fetchIfelse(ctx, exp, doc)
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case *sql.SelectStatement:
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return e.fetchSelect(ctx, exp, doc)
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case *sql.CreateStatement:
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return e.fetchCreate(ctx, exp, doc)
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case *sql.UpdateStatement:
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return e.fetchUpdate(ctx, exp, doc)
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case *sql.DeleteStatement:
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return e.fetchDelete(ctx, exp, doc)
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case *sql.RelateStatement:
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return e.fetchRelate(ctx, exp, doc)
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case *sql.InsertStatement:
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return e.fetchInsert(ctx, exp, doc)
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case *sql.UpsertStatement:
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return e.fetchUpsert(ctx, exp, doc)
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}
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case *sql.MultExpression:
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for _, exp := range val.Expr {
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switch exp := exp.(type) {
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default:
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out, err = e.fetch(ctx, exp, doc)
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case *sql.SelectStatement:
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out, err = e.fetchSelect(ctx, exp, doc)
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case *sql.CreateStatement:
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out, err = e.fetchCreate(ctx, exp, doc)
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case *sql.UpdateStatement:
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out, err = e.fetchUpdate(ctx, exp, doc)
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case *sql.DeleteStatement:
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out, err = e.fetchDelete(ctx, exp, doc)
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case *sql.RelateStatement:
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out, err = e.fetchRelate(ctx, exp, doc)
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case *sql.InsertStatement:
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out, err = e.fetchInsert(ctx, exp, doc)
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case *sql.UpsertStatement:
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out, err = e.fetchUpsert(ctx, exp, doc)
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}
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if err != nil {
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return out, err
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}
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}
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return nil, nil
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case *sql.PathExpression:
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return e.fetchPaths(ctx, doc, val.Expr...)
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case *sql.BinaryExpression:
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l, err := e.fetch(ctx, val.LHS, doc)
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if err != nil {
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return nil, err
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}
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switch val.Op {
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case sql.OR:
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if calcAsBool(l) {
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return true, nil
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}
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case sql.AND:
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if !calcAsBool(l) {
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return false, nil
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}
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}
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r, err := e.fetch(ctx, val.RHS, doc)
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if err != nil {
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return nil, err
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}
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switch val.Op {
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case sql.EEQ:
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return l == r, nil
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case sql.NEE:
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return l != r, nil
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case sql.AND, sql.OR:
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return binaryBool(val.Op, l, r), nil
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case sql.ADD, sql.SUB, sql.MUL, sql.DIV, sql.INC, sql.DEC:
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return binaryMath(val.Op, l, r), nil
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case sql.EQ, sql.NEQ, sql.ANY, sql.LT, sql.LTE, sql.GT, sql.GTE:
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return binaryCheck(val.Op, l, r, val.LHS, val.RHS, doc), nil
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case sql.SIN, sql.SNI, sql.INS, sql.NIS, sql.MAT, sql.NAT, sql.MAY:
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return binaryCheck(val.Op, l, r, val.LHS, val.RHS, doc), nil
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case sql.CONTAINSALL, sql.CONTAINSSOME, sql.CONTAINSNONE:
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return binaryCheck(val.Op, l, r, val.LHS, val.RHS, doc), nil
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case sql.ALLCONTAINEDIN, sql.SOMECONTAINEDIN, sql.NONECONTAINEDIN:
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return binaryCheck(val.Op, l, r, val.LHS, val.RHS, doc), nil
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}
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}
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return nil, nil
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}
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func (e *executor) fetchPaths(ctx context.Context, doc *data.Doc, exprs ...sql.Expr) (interface{}, error) {
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var expr sql.Expr
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if len(exprs) == 0 {
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return doc.Data(), nil
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}
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expr, exprs = exprs[0], exprs[1:]
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switch val := expr.(type) {
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case *sql.JoinExpression:
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switch val.Join {
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case sql.DOT:
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return e.fetchPaths(ctx, doc, exprs...)
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case sql.OEDGE:
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return nil, errFeatureNotImplemented
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case sql.IEDGE:
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return nil, errFeatureNotImplemented
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case sql.BEDGE:
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return nil, errFeatureNotImplemented
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}
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case *sql.PartExpression:
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switch val := val.Part.(type) {
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case *sql.All:
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return e.fetchPaths(ctx, doc, exprs...)
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case *sql.Param:
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res, err := e.fetch(ctx, val, doc)
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if err != nil {
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return nil, err
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}
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return e.fetchPaths(ctx, data.Consume(res), exprs...)
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case *sql.Ident:
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res, err := e.fetch(ctx, val, doc)
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if err != nil {
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return nil, err
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}
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return e.fetchPaths(ctx, data.Consume(res), exprs...)
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case *sql.Thing:
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res, err := e.fetchThing(ctx, val, doc)
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if err != nil {
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return nil, err
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}
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return e.fetchPaths(ctx, data.Consume(res), exprs...)
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}
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}
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return nil, nil
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}
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func (e *executor) fetchThing(ctx context.Context, val *sql.Thing, doc *data.Doc) (interface{}, error) {
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ver, err := e.fetchVersion(ctx, ctx.Value(ctxKeyVersion))
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if err != nil {
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return nil, err
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}
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if val, ok := e.data.Load(val.String()); ok {
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return val, nil
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}
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stm := &sql.SelectStatement{
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Expr: []*sql.Field{{Expr: &sql.All{}}},
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What: []sql.Expr{val},
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Version: sql.Expr(ver),
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}
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res, err := e.executeSelect(ctx, stm)
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if err != nil {
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return nil, err
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}
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if len(res) > 0 {
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e.data.Store(val.String(), res[0])
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return res[0], nil
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}
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return nil, nil
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}
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func (e *executor) fetchPerms(ctx context.Context, val sql.Expr, tb *sql.Ident) error {
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// If the table does exist we reset the
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// context to DB level so that no other
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// embedded permissions are checked on
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// records within these permissions.
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ctx = context.WithValue(ctx, ctxKeyKind, cnf.AuthDB)
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// We then try to process the relevant
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// permissions expression, but only if
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// the specified expression doesn't
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// reference any document fields.
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res, err := e.fetch(ctx, val, ign)
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// If we receive an 'ident failed' error
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// it is because the table permission
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// expression contains a field check,
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// and therefore we must check each
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// record individually to see if it can
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// be accessed or not.
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if err != queryIdentFailed {
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if res, ok := res.(bool); ok && !res {
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return &PermsError{table: tb.VA}
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}
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}
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return nil
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}
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func (e *executor) fetchLimit(ctx context.Context, val sql.Expr) (int, error) {
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v, err := e.fetch(ctx, val, nil)
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if err != nil {
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return -1, err
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}
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switch v := v.(type) {
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case float64:
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return int(v), nil
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case int64:
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return int(v), nil
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case nil:
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return -1, nil
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default:
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return -1, &LimitError{found: v}
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}
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}
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func (e *executor) fetchStart(ctx context.Context, val sql.Expr) (int, error) {
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v, err := e.fetch(ctx, val, nil)
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if err != nil {
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return -1, err
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}
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switch v := v.(type) {
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case float64:
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return int(v), nil
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case int64:
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return int(v), nil
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case nil:
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return -1, nil
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default:
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return -1, &StartError{found: v}
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}
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}
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func (e *executor) fetchVersion(ctx context.Context, val sql.Expr) (int64, error) {
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if v, ok := val.(int64); ok {
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return v, nil
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}
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v, err := e.fetch(ctx, val, nil)
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if err != nil {
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return math.MaxInt64, err
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}
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switch v := v.(type) {
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case time.Time:
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return v.UnixNano(), nil
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case nil:
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return math.MaxInt64, nil
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default:
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return math.MaxInt64, &VersnError{found: v}
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}
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}
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func (e *executor) fetchOutputs(ctx context.Context, stm *sql.SelectStatement) (int, error) {
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l, err := e.fetchLimit(ctx, stm.Limit)
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if err != nil {
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return -1, err
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}
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if len(stm.What) == 1 {
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if _, ok := stm.What[0].(*sql.Thing); ok {
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l = 1
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}
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}
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return l, nil
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}
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func calcAsBool(i interface{}) bool {
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switch v := i.(type) {
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default:
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return false
|
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case bool:
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return v
|
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case int64:
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return v > 0
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case float64:
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return v > 0
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case string:
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return v != ""
|
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case time.Time:
|
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return v.UnixNano() > 0
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case *sql.Thing:
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return true
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case []interface{}:
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return len(v) > 0
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case map[string]interface{}:
|
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return len(v) > 0
|
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}
|
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}
|
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|
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func calcAsMath(i interface{}) float64 {
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|
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switch v := i.(type) {
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default:
|
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return 0
|
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case bool:
|
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if v {
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return 1
|
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}
|
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return 0
|
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case int64:
|
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return float64(v)
|
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case float64:
|
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return v
|
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case time.Time:
|
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return float64(v.UnixNano())
|
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}
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|
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}
|
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|
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func binaryBool(op sql.Token, l, r interface{}) interface{} {
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|
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a := calcAsBool(l)
|
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b := calcAsBool(r)
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|
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switch op {
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case sql.AND:
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return a && b
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case sql.OR:
|
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return a || b
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}
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|
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return nil
|
|
|
|
}
|
|
|
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func binaryMath(op sql.Token, l, r interface{}) interface{} {
|
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|
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a := calcAsMath(l)
|
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b := calcAsMath(r)
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|
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switch op {
|
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case sql.ADD, sql.INC:
|
|
return a + b
|
|
case sql.SUB, sql.DEC:
|
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return a - b
|
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case sql.MUL:
|
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return a * b
|
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case sql.DIV:
|
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if b != 0 {
|
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return a / b
|
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}
|
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}
|
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|
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return nil
|
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|
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}
|
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|
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func binaryCheck(op sql.Token, l, r, lo, ro interface{}, d *data.Doc) interface{} {
|
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|
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switch lo.(type) {
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case *sql.Void:
|
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switch ro.(type) {
|
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case *sql.Null:
|
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return op == sql.NEQ
|
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case *sql.Void:
|
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return op == sql.EQ
|
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case *sql.Empty:
|
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return op == sql.EQ
|
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}
|
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case *sql.Empty:
|
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switch ro.(type) {
|
|
case *sql.Null:
|
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return op == sql.EQ
|
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case *sql.Void:
|
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return op == sql.EQ
|
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case *sql.Empty:
|
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return op == sql.EQ
|
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}
|
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}
|
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|
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switch ro.(type) {
|
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case *sql.Void:
|
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switch lo.(type) {
|
|
case *sql.Null:
|
|
return op == sql.NEQ
|
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case *sql.Void:
|
|
return op == sql.EQ
|
|
case *sql.Empty:
|
|
return op == sql.EQ
|
|
}
|
|
case *sql.Empty:
|
|
switch lo.(type) {
|
|
case *sql.Null:
|
|
return op == sql.EQ
|
|
case *sql.Void:
|
|
return op == sql.EQ
|
|
case *sql.Empty:
|
|
return op == sql.EQ
|
|
}
|
|
}
|
|
|
|
if d != nil {
|
|
|
|
switch lo.(type) {
|
|
case *sql.Void:
|
|
switch r := ro.(type) {
|
|
case *sql.Ident:
|
|
if op == sql.EQ {
|
|
return d.Exists(r.VA) == false
|
|
} else if op == sql.NEQ {
|
|
return d.Exists(r.VA) == true
|
|
}
|
|
}
|
|
case *sql.Null:
|
|
switch r := ro.(type) {
|
|
case *sql.Ident:
|
|
if op == sql.EQ {
|
|
return d.Exists(r.VA) == true && d.Get(r.VA).Data() == nil
|
|
} else if op == sql.NEQ {
|
|
return d.Exists(r.VA) == false || d.Get(r.VA).Data() != nil
|
|
}
|
|
}
|
|
}
|
|
|
|
switch ro.(type) {
|
|
case *sql.Void:
|
|
switch l := lo.(type) {
|
|
case *sql.Ident:
|
|
if op == sql.EQ {
|
|
return d.Exists(l.VA) == false
|
|
} else if op == sql.NEQ {
|
|
return d.Exists(l.VA) == true
|
|
}
|
|
}
|
|
case *sql.Null:
|
|
switch l := lo.(type) {
|
|
case *sql.Ident:
|
|
if op == sql.EQ {
|
|
return d.Exists(l.VA) == true && d.Get(l.VA).Data() == nil
|
|
} else if op == sql.NEQ {
|
|
return d.Exists(l.VA) == false || d.Get(l.VA).Data() != nil
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
switch l := l.(type) {
|
|
|
|
case nil:
|
|
switch r := r.(type) {
|
|
case nil:
|
|
return op == sql.EQ
|
|
case *sql.Null:
|
|
return op == sql.EQ
|
|
case *sql.Empty:
|
|
return op == sql.EQ
|
|
case []interface{}:
|
|
return chkArrayR(op, l, r)
|
|
}
|
|
|
|
case *sql.Null:
|
|
switch r := r.(type) {
|
|
case nil:
|
|
return op == sql.EQ
|
|
case *sql.Null:
|
|
return op == sql.EQ
|
|
case *sql.Empty:
|
|
return op == sql.EQ
|
|
case []interface{}:
|
|
return chkArrayR(op, l, r)
|
|
}
|
|
|
|
case *sql.Empty:
|
|
switch r := r.(type) {
|
|
case nil:
|
|
return op == sql.EQ
|
|
case *sql.Null:
|
|
return op == sql.EQ
|
|
case *sql.Empty:
|
|
return op == sql.EQ
|
|
case string:
|
|
return chkLen(op, r)
|
|
case []interface{}:
|
|
return chkArrayR(op, l, r)
|
|
case map[string]interface{}:
|
|
return chkObject(op, r, l)
|
|
}
|
|
|
|
case *sql.Thing:
|
|
switch r := r.(type) {
|
|
case *sql.Thing:
|
|
return chkThing(op, l, r)
|
|
case string:
|
|
return chkString(op, r, l.String())
|
|
case []interface{}:
|
|
return chkArrayR(op, l, r)
|
|
}
|
|
|
|
case bool:
|
|
switch r := r.(type) {
|
|
case bool:
|
|
return chkBool(op, l, r)
|
|
case string:
|
|
if b, err := strconv.ParseBool(r); err == nil {
|
|
return chkBool(op, l, b)
|
|
}
|
|
case *regexp.Regexp:
|
|
return chkRegex(op, strconv.FormatBool(l), r)
|
|
case []interface{}:
|
|
return chkArrayR(op, l, r)
|
|
}
|
|
|
|
case string:
|
|
switch r := r.(type) {
|
|
case bool:
|
|
if b, err := strconv.ParseBool(l); err == nil {
|
|
return chkBool(op, r, b)
|
|
}
|
|
case string:
|
|
return chkString(op, l, r)
|
|
case int64:
|
|
if n, err := strconv.ParseInt(l, 10, 64); err == nil {
|
|
return chkInt(op, r, n)
|
|
}
|
|
case float64:
|
|
if n, err := strconv.ParseFloat(l, 64); err == nil {
|
|
return chkFloat(op, r, n)
|
|
}
|
|
case time.Time:
|
|
return chkString(op, l, r.String())
|
|
case *sql.Empty:
|
|
return chkLen(op, l)
|
|
case *sql.Thing:
|
|
return chkString(op, l, r.String())
|
|
case *regexp.Regexp:
|
|
return chkRegex(op, l, r)
|
|
case []interface{}:
|
|
return chkArrayR(op, l, r)
|
|
}
|
|
|
|
case int64:
|
|
switch r := r.(type) {
|
|
case string:
|
|
if n, err := strconv.ParseInt(r, 10, 64); err == nil {
|
|
return chkInt(op, l, n)
|
|
}
|
|
case int64:
|
|
return chkInt(op, l, r)
|
|
case float64:
|
|
return chkFloat(op, float64(l), r)
|
|
case time.Time:
|
|
return chkInt(op, l, r.UnixNano())
|
|
case *regexp.Regexp:
|
|
return chkRegex(op, strconv.FormatInt(l, 10), r)
|
|
case []interface{}:
|
|
return chkArrayR(op, l, r)
|
|
}
|
|
|
|
case float64:
|
|
switch r := r.(type) {
|
|
case string:
|
|
if n, err := strconv.ParseFloat(r, 64); err == nil {
|
|
return chkFloat(op, l, n)
|
|
}
|
|
case int64:
|
|
return chkFloat(op, l, float64(r))
|
|
case float64:
|
|
return chkFloat(op, l, r)
|
|
case time.Time:
|
|
return chkFloat(op, l, float64(r.UnixNano()))
|
|
case *regexp.Regexp:
|
|
return chkRegex(op, strconv.FormatFloat(l, 'g', -1, 64), r)
|
|
case []interface{}:
|
|
return chkArrayR(op, l, r)
|
|
}
|
|
|
|
case time.Time:
|
|
switch r := r.(type) {
|
|
case string:
|
|
return chkString(op, l.String(), r)
|
|
case int64:
|
|
return chkInt(op, l.UnixNano(), r)
|
|
case float64:
|
|
return chkFloat(op, float64(l.UnixNano()), r)
|
|
case time.Time:
|
|
return chkInt(op, l.UnixNano(), r.UnixNano())
|
|
case *regexp.Regexp:
|
|
return chkRegex(op, l.String(), r)
|
|
case []interface{}:
|
|
return chkArrayR(op, l, r)
|
|
}
|
|
|
|
case []interface{}:
|
|
switch r := r.(type) {
|
|
default:
|
|
return chkArrayL(op, l, r)
|
|
case bool:
|
|
return chkArrayL(op, l, r)
|
|
case string:
|
|
return chkArrayL(op, l, r)
|
|
case int64:
|
|
return chkArrayL(op, l, r)
|
|
case float64:
|
|
return chkArrayL(op, l, r)
|
|
case time.Time:
|
|
return chkArrayL(op, l, r)
|
|
case *regexp.Regexp:
|
|
return chkMatch(op, l, r)
|
|
case []interface{}:
|
|
return chkArray(op, l, r)
|
|
case map[string]interface{}:
|
|
return chkArrayL(op, l, r)
|
|
}
|
|
|
|
case map[string]interface{}:
|
|
switch r := r.(type) {
|
|
default:
|
|
return chkObject(op, l, r)
|
|
case []interface{}:
|
|
return chkArrayR(op, l, r)
|
|
case map[string]interface{}:
|
|
return chkObject(op, l, r)
|
|
}
|
|
|
|
}
|
|
|
|
return negOp(op)
|
|
|
|
}
|
|
|
|
func posOp(op sql.Token) bool {
|
|
return chkOp(op) > 1
|
|
}
|
|
|
|
func negOp(op sql.Token) bool {
|
|
return chkOp(op) < 0
|
|
}
|
|
|
|
func chkOp(op sql.Token) int8 {
|
|
switch op {
|
|
case sql.EQ, sql.SIN, sql.INS, sql.MAT, sql.ANY:
|
|
return +1
|
|
case sql.NEQ, sql.SNI, sql.NIS, sql.NAT, sql.MAY:
|
|
return -1
|
|
case sql.CONTAINSALL:
|
|
return +1
|
|
case sql.CONTAINSSOME:
|
|
return +1
|
|
case sql.CONTAINSNONE:
|
|
return -1
|
|
case sql.ALLCONTAINEDIN:
|
|
return +1
|
|
case sql.SOMECONTAINEDIN:
|
|
return +1
|
|
case sql.NONECONTAINEDIN:
|
|
return -1
|
|
default:
|
|
return 0
|
|
}
|
|
}
|
|
|
|
func chkLen(op sql.Token, s string) (val bool) {
|
|
switch op {
|
|
case sql.EQ:
|
|
return len(s) == 0
|
|
case sql.NEQ:
|
|
return len(s) != 0
|
|
}
|
|
return negOp(op)
|
|
}
|
|
|
|
func chkBool(op sql.Token, a, b bool) (val bool) {
|
|
switch op {
|
|
case sql.EQ:
|
|
return a == b
|
|
case sql.NEQ:
|
|
return a != b
|
|
}
|
|
return negOp(op)
|
|
}
|
|
|
|
func chkString(op sql.Token, a, b string) (val bool) {
|
|
switch op {
|
|
case sql.EQ:
|
|
return a == b
|
|
case sql.NEQ:
|
|
return a != b
|
|
case sql.LT:
|
|
return a < b
|
|
case sql.LTE:
|
|
return a <= b
|
|
case sql.GT:
|
|
return a > b
|
|
case sql.GTE:
|
|
return a >= b
|
|
case sql.INS:
|
|
return strings.Contains(b, a) == true
|
|
case sql.NIS:
|
|
return strings.Contains(b, a) == false
|
|
case sql.SIN:
|
|
return strings.Contains(a, b) == true
|
|
case sql.SNI:
|
|
return strings.Contains(a, b) == false
|
|
case sql.MAT:
|
|
b, e := search.New(language.Und, search.Loose).IndexString(a, b)
|
|
return b != -1 && e != -1
|
|
case sql.NAT:
|
|
b, e := search.New(language.Und, search.Loose).IndexString(a, b)
|
|
return b == -1 && e == -1
|
|
case sql.MAY:
|
|
b, e := search.New(language.Und, search.Loose).IndexString(a, b)
|
|
return b != -1 && e != -1
|
|
}
|
|
return negOp(op)
|
|
}
|
|
|
|
func chkInt(op sql.Token, a, b int64) (val bool) {
|
|
switch op {
|
|
case sql.EQ:
|
|
return a == b
|
|
case sql.NEQ:
|
|
return a != b
|
|
case sql.LT:
|
|
return a < b
|
|
case sql.LTE:
|
|
return a <= b
|
|
case sql.GT:
|
|
return a > b
|
|
case sql.GTE:
|
|
return a >= b
|
|
}
|
|
return negOp(op)
|
|
}
|
|
|
|
func chkFloat(op sql.Token, a, b float64) (val bool) {
|
|
switch op {
|
|
case sql.EQ:
|
|
return a == b
|
|
case sql.NEQ:
|
|
return a != b
|
|
case sql.LT:
|
|
return a < b
|
|
case sql.LTE:
|
|
return a <= b
|
|
case sql.GT:
|
|
return a > b
|
|
case sql.GTE:
|
|
return a >= b
|
|
}
|
|
return negOp(op)
|
|
}
|
|
|
|
func chkThing(op sql.Token, a, b *sql.Thing) (val bool) {
|
|
switch op {
|
|
case sql.EQ:
|
|
return a.TB == b.TB && a.ID == b.ID
|
|
case sql.NEQ:
|
|
return a.TB != b.TB || a.ID != b.ID
|
|
}
|
|
return negOp(op)
|
|
}
|
|
|
|
func chkRegex(op sql.Token, a string, r *regexp.Regexp) (val bool) {
|
|
switch op {
|
|
case sql.EQ:
|
|
return r.MatchString(a) == true
|
|
case sql.NEQ:
|
|
return r.MatchString(a) == false
|
|
case sql.ANY:
|
|
return r.MatchString(a) == true
|
|
}
|
|
return negOp(op)
|
|
}
|
|
|
|
func chkObject(op sql.Token, m map[string]interface{}, i interface{}) (val bool) {
|
|
switch op {
|
|
case sql.EQ:
|
|
switch i.(type) {
|
|
case *sql.Empty:
|
|
return len(m) == 0
|
|
default:
|
|
return reflect.TypeOf(m) == reflect.TypeOf(i) && reflect.DeepEqual(m, i) == true
|
|
}
|
|
case sql.NEQ:
|
|
switch i.(type) {
|
|
case *sql.Empty:
|
|
return len(m) != 0
|
|
default:
|
|
return reflect.TypeOf(m) != reflect.TypeOf(i) || reflect.DeepEqual(m, i) == false
|
|
}
|
|
}
|
|
return negOp(op)
|
|
}
|
|
|
|
func chkArrayL(op sql.Token, a []interface{}, i interface{}) (val bool) {
|
|
switch op {
|
|
case sql.EQ:
|
|
switch i.(type) {
|
|
case *sql.Empty:
|
|
return len(a) == 0
|
|
default:
|
|
return false
|
|
}
|
|
case sql.NEQ:
|
|
switch i.(type) {
|
|
case *sql.Empty:
|
|
return len(a) != 0
|
|
default:
|
|
return true
|
|
}
|
|
case sql.SIN:
|
|
switch i.(type) {
|
|
case nil, *sql.Null:
|
|
return data.Consume(a).Contains(nil) == true
|
|
default:
|
|
return data.Consume(a).Contains(i) == true
|
|
}
|
|
case sql.SNI:
|
|
switch i.(type) {
|
|
case nil, *sql.Null:
|
|
return data.Consume(a).Contains(nil) == false
|
|
default:
|
|
return data.Consume(a).Contains(i) == false
|
|
}
|
|
case sql.MAT:
|
|
switch s := i.(type) {
|
|
case string:
|
|
return chkSearchL(op, a, s)
|
|
}
|
|
case sql.NAT:
|
|
switch s := i.(type) {
|
|
case string:
|
|
return chkSearchL(op, a, s)
|
|
}
|
|
case sql.MAY:
|
|
switch s := i.(type) {
|
|
case string:
|
|
return chkSearchL(op, a, s)
|
|
}
|
|
}
|
|
return negOp(op)
|
|
}
|
|
|
|
func chkArrayR(op sql.Token, i interface{}, a []interface{}) (val bool) {
|
|
switch op {
|
|
case sql.EQ:
|
|
switch i.(type) {
|
|
case *sql.Empty:
|
|
return len(a) == 0
|
|
default:
|
|
return false
|
|
}
|
|
case sql.NEQ:
|
|
switch i.(type) {
|
|
case *sql.Empty:
|
|
return len(a) != 0
|
|
default:
|
|
return true
|
|
}
|
|
case sql.INS:
|
|
switch i.(type) {
|
|
case nil, *sql.Null:
|
|
return data.Consume(a).Contains(nil) == true
|
|
default:
|
|
return data.Consume(a).Contains(i) == true
|
|
}
|
|
case sql.NIS:
|
|
switch i.(type) {
|
|
case nil, *sql.Null:
|
|
return data.Consume(a).Contains(nil) == false
|
|
default:
|
|
return data.Consume(a).Contains(i) == false
|
|
}
|
|
case sql.MAT:
|
|
switch s := i.(type) {
|
|
case string:
|
|
return chkSearchR(op, a, s)
|
|
}
|
|
case sql.NAT:
|
|
switch s := i.(type) {
|
|
case string:
|
|
return chkSearchR(op, a, s)
|
|
}
|
|
case sql.MAY:
|
|
switch s := i.(type) {
|
|
case string:
|
|
return chkSearchR(op, a, s)
|
|
}
|
|
}
|
|
return negOp(op)
|
|
}
|
|
|
|
func chkArray(op sql.Token, a []interface{}, b []interface{}) (val bool) {
|
|
switch op {
|
|
case sql.EQ:
|
|
if reflect.TypeOf(a) == reflect.TypeOf(b) && reflect.DeepEqual(a, b) == true {
|
|
return true
|
|
}
|
|
case sql.NEQ:
|
|
if reflect.TypeOf(a) != reflect.TypeOf(b) || reflect.DeepEqual(a, b) == false {
|
|
return true
|
|
}
|
|
case sql.SIN:
|
|
return data.Consume(a).Contains(b) == true
|
|
case sql.SNI:
|
|
return data.Consume(a).Contains(b) == false
|
|
case sql.INS:
|
|
return data.Consume(b).Contains(a) == true
|
|
case sql.NIS:
|
|
return data.Consume(b).Contains(a) == false
|
|
case sql.CONTAINSALL:
|
|
for _, v := range b {
|
|
if data.Consume(a).Contains(v) == false {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
case sql.CONTAINSSOME:
|
|
for _, v := range b {
|
|
if data.Consume(a).Contains(v) == true {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
case sql.CONTAINSNONE:
|
|
for _, v := range b {
|
|
if data.Consume(a).Contains(v) == true {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
case sql.ALLCONTAINEDIN:
|
|
for _, v := range a {
|
|
if data.Consume(b).Contains(v) == false {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
case sql.SOMECONTAINEDIN:
|
|
for _, v := range a {
|
|
if data.Consume(b).Contains(v) == true {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
case sql.NONECONTAINEDIN:
|
|
for _, v := range a {
|
|
if data.Consume(b).Contains(v) == true {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
return
|
|
}
|
|
|
|
func chkMatch(op sql.Token, a []interface{}, r *regexp.Regexp) (val bool) {
|
|
|
|
if len(a) == 0 {
|
|
return op == sql.NEQ
|
|
}
|
|
|
|
for _, v := range a {
|
|
|
|
var s string
|
|
|
|
switch c := v.(type) {
|
|
default:
|
|
return false
|
|
case string:
|
|
s = c
|
|
case bool:
|
|
s = strconv.FormatBool(c)
|
|
case int64:
|
|
s = strconv.FormatInt(c, 10)
|
|
case float64:
|
|
s = strconv.FormatFloat(c, 'g', -1, 64)
|
|
case time.Time:
|
|
s = c.String()
|
|
}
|
|
|
|
if op == sql.EQ {
|
|
if chkRegex(sql.EQ, s, r) == false {
|
|
return false
|
|
}
|
|
}
|
|
|
|
if op == sql.NEQ {
|
|
if chkRegex(sql.EQ, s, r) == false {
|
|
return true
|
|
}
|
|
}
|
|
|
|
if op == sql.ANY {
|
|
if chkRegex(sql.EQ, s, r) == true {
|
|
return true
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
switch op {
|
|
case sql.EQ:
|
|
return true
|
|
case sql.NEQ:
|
|
return false
|
|
case sql.ANY:
|
|
return false
|
|
}
|
|
|
|
return
|
|
|
|
}
|
|
|
|
func chkSearchL(op sql.Token, a []interface{}, p string) (val bool) {
|
|
|
|
if len(a) == 0 {
|
|
return op == sql.NAT
|
|
}
|
|
|
|
for _, v := range a {
|
|
|
|
var s string
|
|
|
|
switch c := v.(type) {
|
|
default:
|
|
return false
|
|
case string:
|
|
s = c
|
|
case bool:
|
|
s = strconv.FormatBool(c)
|
|
case int64:
|
|
s = strconv.FormatInt(c, 10)
|
|
case float64:
|
|
s = strconv.FormatFloat(c, 'g', -1, 64)
|
|
case time.Time:
|
|
s = c.String()
|
|
}
|
|
|
|
if op == sql.MAT {
|
|
b, e := search.New(language.Und, search.Loose).IndexString(s, p)
|
|
if b == -1 && e == -1 {
|
|
return false
|
|
}
|
|
}
|
|
|
|
if op == sql.NAT {
|
|
b, e := search.New(language.Und, search.Loose).IndexString(s, p)
|
|
if b == -1 && e == -1 {
|
|
return true
|
|
}
|
|
}
|
|
|
|
if op == sql.MAY {
|
|
b, e := search.New(language.Und, search.Loose).IndexString(s, p)
|
|
if b != -1 && e != -1 {
|
|
return true
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
switch op {
|
|
case sql.MAT:
|
|
return true
|
|
case sql.NAT:
|
|
return false
|
|
case sql.MAY:
|
|
return false
|
|
}
|
|
|
|
return
|
|
|
|
}
|
|
|
|
func chkSearchR(op sql.Token, a []interface{}, p string) (val bool) {
|
|
|
|
if len(a) == 0 {
|
|
return op == sql.NAT
|
|
}
|
|
|
|
for _, v := range a {
|
|
|
|
var s string
|
|
|
|
switch c := v.(type) {
|
|
default:
|
|
return false
|
|
case string:
|
|
s = c
|
|
case bool:
|
|
s = strconv.FormatBool(c)
|
|
case int64:
|
|
s = strconv.FormatInt(c, 10)
|
|
case float64:
|
|
s = strconv.FormatFloat(c, 'g', -1, 64)
|
|
case time.Time:
|
|
s = c.String()
|
|
}
|
|
|
|
if op == sql.MAT {
|
|
b, e := search.New(language.Und, search.Loose).IndexString(p, s)
|
|
if b == -1 && e == -1 {
|
|
return false
|
|
}
|
|
}
|
|
|
|
if op == sql.NAT {
|
|
b, e := search.New(language.Und, search.Loose).IndexString(p, s)
|
|
if b == -1 && e == -1 {
|
|
return true
|
|
}
|
|
}
|
|
|
|
if op == sql.MAY {
|
|
b, e := search.New(language.Und, search.Loose).IndexString(p, s)
|
|
if b != -1 && e != -1 {
|
|
return true
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
switch op {
|
|
case sql.MAT:
|
|
return true
|
|
case sql.NAT:
|
|
return false
|
|
case sql.MAY:
|
|
return false
|
|
}
|
|
|
|
return
|
|
|
|
}
|