wehub-resource-sync
77 lines
2.5 KiB
Go
77 lines
2.5 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 framework
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import (
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"github.com/dolthub/doltgresql/core/casts"
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"github.com/dolthub/doltgresql/core/id"
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pgtypes "github.com/dolthub/doltgresql/server/types"
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)
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// TODO: no need to use these functions, should instead add everything directly to built-in.
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// For now, this just makes the transition easier since it's less to rewrite
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// TypeCast is used to cast from one type to another.
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type TypeCast struct {
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FromType *pgtypes.DoltgresType
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ToType *pgtypes.DoltgresType
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Function pgtypes.TypeCastFunction
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}
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// MustAddExplicitTypeCast registers the given explicit type cast. Panics if an error occurs.
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func MustAddExplicitTypeCast(builtInCasts map[id.Cast]casts.Cast, cast TypeCast) {
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castID := id.NewCast(cast.FromType.ID, cast.ToType.ID)
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if _, ok := builtInCasts[castID]; ok {
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panic("duplicate built-in cast")
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}
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builtInCasts[castID] = casts.Cast{
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ID: castID,
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CastType: casts.CastType_Explicit,
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Function: id.NullFunction,
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BuiltIn: cast.Function,
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UseInOut: false,
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}
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}
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// MustAddAssignmentTypeCast registers the given assignment type cast. Panics if an error occurs.
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func MustAddAssignmentTypeCast(builtInCasts map[id.Cast]casts.Cast, cast TypeCast) {
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castID := id.NewCast(cast.FromType.ID, cast.ToType.ID)
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if _, ok := builtInCasts[castID]; ok {
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panic("duplicate built-in cast")
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}
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builtInCasts[castID] = casts.Cast{
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ID: castID,
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CastType: casts.CastType_Assignment,
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Function: id.NullFunction,
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BuiltIn: cast.Function,
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UseInOut: false,
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}
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}
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// MustAddImplicitTypeCast registers the given implicit type cast. Panics if an error occurs.
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func MustAddImplicitTypeCast(builtInCasts map[id.Cast]casts.Cast, cast TypeCast) {
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castID := id.NewCast(cast.FromType.ID, cast.ToType.ID)
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if _, ok := builtInCasts[castID]; ok {
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panic("duplicate built-in cast")
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}
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builtInCasts[castID] = casts.Cast{
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ID: castID,
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CastType: casts.CastType_Implicit,
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Function: id.NullFunction,
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BuiltIn: cast.Function,
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UseInOut: false,
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}
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}
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