91 lines
2.7 KiB
Go
91 lines
2.7 KiB
Go
// Copyright 2025 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/extensions"
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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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// CFunction is the implementation of functions that host their logic in a shared library.
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type CFunction struct {
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ID id.Function
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ReturnType *pgtypes.DoltgresType
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ParameterTypes []*pgtypes.DoltgresType
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Variadic bool
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IsNonDeterministic bool
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Strict bool
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ExtensionName extensions.LibraryIdentifier
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ExtensionSymbol string
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}
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var _ FunctionInterface = CFunction{}
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// GetExpectedParameterCount implements the interface FunctionInterface.
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func (cFunc CFunction) GetExpectedParameterCount() int {
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return len(cFunc.ParameterTypes)
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}
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// GetName implements the interface FunctionInterface.
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func (cFunc CFunction) GetName() string {
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return cFunc.ID.FunctionName()
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}
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// GetParameters implements the interface FunctionInterface.
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func (cFunc CFunction) GetParameters() []*pgtypes.DoltgresType {
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return cFunc.ParameterTypes
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}
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// GetReturn implements the interface FunctionInterface.
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func (cFunc CFunction) GetReturn() *pgtypes.DoltgresType {
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return cFunc.ReturnType
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}
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// InternalID implements the interface FunctionInterface.
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func (cFunc CFunction) InternalID() id.Id {
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return cFunc.ID.AsId()
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}
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// IsStrict implements the interface FunctionInterface.
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func (cFunc CFunction) IsStrict() bool {
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return cFunc.Strict
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}
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// NonDeterministic implements the interface FunctionInterface.
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func (cFunc CFunction) NonDeterministic() bool {
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return cFunc.IsNonDeterministic
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}
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// IsCVariadic implements the FunctionInterface interface.
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func (cFunc CFunction) IsCVariadic() bool {
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// TODO: implement c-language variadic
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return false
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}
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// VariadicIndex implements the interface FunctionInterface.
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func (cFunc CFunction) VariadicIndex() int {
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// TODO: implement variadic
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return -1
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}
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// IsSRF implements the interface FunctionInterface.
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func (cFunc CFunction) IsSRF() bool {
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return false
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}
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// enforceInterfaceInheritance implements the interface FunctionInterface.
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func (cFunc CFunction) enforceInterfaceInheritance(error) {}
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