wehub-resource-sync
53 lines
1.6 KiB
Go
53 lines
1.6 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 plpgsql
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import (
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"encoding/json"
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"github.com/cockroachdb/errors"
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pg_query "github.com/dolthub/pg_query_go/v6"
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)
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// Parse parses the given CREATE FUNCTION string (which must be the entire string, not just the body) into a Block
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// containing the contents of the body.
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func Parse(fullCreateFunctionString string) ([]InterpreterOperation, error) {
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var functions []function
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parsedBody, err := pg_query.ParsePlPgSqlToJSON(fullCreateFunctionString)
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if err != nil {
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return nil, err
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}
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err = json.Unmarshal([]byte(parsedBody), &functions)
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if err != nil {
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return nil, err
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}
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if len(functions) != 1 {
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return nil, errors.New("CREATE FUNCTION parsed multiple blocks")
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}
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block, err := jsonConvert(functions[0].Function)
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if err != nil {
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return nil, err
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}
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ops := make([]InterpreterOperation, 0, len(block.Body)+len(block.Variables))
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stack := NewInterpreterStack(nil)
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if err = block.AppendOperations(&ops, &stack); err != nil {
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return nil, err
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}
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if err = reconcileLabels(ops); err != nil {
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return nil, err
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}
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return ops, nil
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}
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