wehub-resource-sync
75 lines
2.2 KiB
Go
75 lines
2.2 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 expression
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import (
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"github.com/dolthub/go-mysql-server/sql"
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"github.com/dolthub/go-mysql-server/sql/procedures"
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pgtypes "github.com/dolthub/doltgresql/server/types"
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)
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// StatementRunner is an expression that can be added to a node to grab the statement runner.
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type StatementRunner struct {
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Runner sql.StatementRunner
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}
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var _ sql.Expression = StatementRunner{}
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var _ procedures.InterpreterExpr = StatementRunner{}
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// Children implements the sql.Expression interface.
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func (StatementRunner) Children() []sql.Expression {
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return nil
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}
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// Eval implements the sql.Expression interface.
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func (StatementRunner) Eval(ctx *sql.Context, row sql.Row) (any, error) {
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return nil, nil
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}
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// IsNullable implements the sql.Expression interface.
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func (StatementRunner) IsNullable(ctx *sql.Context) bool {
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return false
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}
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// Resolved implements the sql.Expression interface.
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func (StatementRunner) Resolved() bool {
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return true
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}
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// SetStatementRunner implements the sql.Expression interface.
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func (sr StatementRunner) SetStatementRunner(ctx *sql.Context, runner sql.StatementRunner) sql.Expression {
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sr.Runner = runner
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return sr
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}
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// String implements the sql.Expression interface.
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func (StatementRunner) String() string {
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return "StatementRunner"
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}
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// Type implements the sql.Expression interface.
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func (StatementRunner) Type(ctx *sql.Context) sql.Type {
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return pgtypes.Unknown
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}
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// WithChildren implements the sql.Expression interface.
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func (sr StatementRunner) WithChildren(ctx *sql.Context, children ...sql.Expression) (sql.Expression, error) {
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if len(children) != 0 {
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return nil, sql.ErrInvalidChildrenNumber.New(sr, len(children), 0)
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}
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return sr, nil
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}
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