wehub-resource-sync
115 lines
3.5 KiB
Go
115 lines
3.5 KiB
Go
// Copyright 2024 Dolthub, Inc.
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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 functions
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import (
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"strings"
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"github.com/dolthub/go-mysql-server/sql"
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"github.com/dolthub/doltgresql/server/functions/framework"
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pgtypes "github.com/dolthub/doltgresql/server/types"
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"github.com/dolthub/doltgresql/utils"
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)
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// initBool registers the functions to the catalog.
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func initBool() {
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framework.RegisterFunction(boolin)
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framework.RegisterFunction(boolout)
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framework.RegisterFunction(boolrecv)
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framework.RegisterFunction(boolsend)
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framework.RegisterFunction(btboolcmp)
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}
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// boolin represents the PostgreSQL function of boolean type IO input.
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var boolin = framework.Function1{
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Name: "boolin",
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Return: pgtypes.Bool,
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Parameters: [1]*pgtypes.DoltgresType{pgtypes.Cstring},
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Strict: true,
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Callable: func(ctx *sql.Context, _ [2]*pgtypes.DoltgresType, val any) (any, error) {
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val = strings.TrimSpace(strings.ToLower(val.(string)))
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if val == "true" || val == "t" || val == "yes" || val == "on" || val == "1" {
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return true, nil
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} else if val == "false" || val == "f" || val == "no" || val == "off" || val == "0" {
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return false, nil
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} else {
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return nil, pgtypes.ErrInvalidSyntaxForType.New("boolean", val)
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}
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},
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}
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// boolout represents the PostgreSQL function of boolean type IO output.
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var boolout = framework.Function1{
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Name: "boolout",
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Return: pgtypes.Cstring,
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Parameters: [1]*pgtypes.DoltgresType{pgtypes.Bool},
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Strict: true,
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Callable: func(ctx *sql.Context, _ [2]*pgtypes.DoltgresType, val any) (any, error) {
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if val.(bool) {
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return "true", nil
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} else {
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return "false", nil
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}
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},
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}
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// boolrecv represents the PostgreSQL function of boolean type IO receive.
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var boolrecv = framework.Function1{
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Name: "boolrecv",
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Return: pgtypes.Bool,
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Parameters: [1]*pgtypes.DoltgresType{pgtypes.Internal},
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Strict: true,
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Callable: func(ctx *sql.Context, _ [2]*pgtypes.DoltgresType, val any) (any, error) {
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data := val.([]byte)
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if len(data) == 0 {
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return nil, nil
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}
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return data[0] != 0, nil
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},
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}
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// boolsend represents the PostgreSQL function of boolean type IO send.
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var boolsend = framework.Function1{
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Name: "boolsend",
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Return: pgtypes.Bytea,
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Parameters: [1]*pgtypes.DoltgresType{pgtypes.Bool},
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Strict: true,
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Callable: func(ctx *sql.Context, _ [2]*pgtypes.DoltgresType, val any) (any, error) {
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writer := utils.NewWireWriter()
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writer.WriteBool(val.(bool))
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return writer.BufferData(), nil
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},
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}
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// btboolcmp represents the PostgreSQL function of boolean type byte compare.
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var btboolcmp = framework.Function2{
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Name: "btboolcmp",
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Return: pgtypes.Int32,
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Parameters: [2]*pgtypes.DoltgresType{pgtypes.Bool, pgtypes.Bool},
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Strict: true,
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Callable: func(ctx *sql.Context, _ [3]*pgtypes.DoltgresType, val1, val2 any) (any, error) {
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ab := val1.(bool)
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bb := val2.(bool)
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if ab == bb {
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return int32(0), nil
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} else if !ab {
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return int32(-1), nil
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} else {
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return int32(1), nil
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}
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},
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}
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