76 lines
2.7 KiB
C#
76 lines
2.7 KiB
C#
/*
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* dbMango
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*
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* Copyright 2025 Deutsche Bank AG
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* SPDX-License-Identifier: Apache-2.0
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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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*/
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namespace Rms.Risk.Mango.Language.Ast;
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public class AstLetExpression : AstLet
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{
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public AstLetExpression(AstExpression expression, string? name = null)
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{
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Add(expression);
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if ( expression is not AstExpressionVariable ev || ev.Name != PreprocessFieldName(name))
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{
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Name = name?.Trim('\"').Trim('\'');//PreprocessFieldName(name);
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if ( string.IsNullOrWhiteSpace(Name))
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Name = null;
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}
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}
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public AstExpression Expression => Children.OfType<AstExpression>().First();
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public override void Append(StringBuilder sb, int indent)
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{
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sb.Append(Spaces(indent));
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Expression.Append(sb, indent);
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if ( !string.IsNullOrWhiteSpace(Name) )
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{
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sb.Append(" AS ");
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AppendFieldName(sb, Name);
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}
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}
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public override void AddToJson(JsonObject res, bool simplifyTargetNames = false)
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{
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if ( !string.IsNullOrWhiteSpace(Name) )
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res.Add(Name, Expression.AsJson());
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else
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{
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var name = PreprocessFieldName((Expression as AstExpressionVariable)?.Name);
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if ( string.IsNullOrWhiteSpace(name) )
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throw new ($"{Expression} must have a name");
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// res.Add(name, simplifyTargetNames ? JsonValue.Create(1) : JsonValue.Create($"${name}"));
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res.Add(name, JsonValue.Create($"${name}"));
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}
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}
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public override void AddToJson(JsonArray res, bool simplifyTargetNames = false)
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{
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if ( !string.IsNullOrWhiteSpace(Name) )
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res.Add( new JsonObject([ new(Name, Expression.AsJson())]));
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else
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{
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var name = PreprocessFieldName((Expression as AstExpressionVariable)?.Name);
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if ( string.IsNullOrWhiteSpace(name) )
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throw new ($"{Expression} must have a name");
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// res.Add( new JsonObject([ new(name, simplifyTargetNames ? JsonValue.Create(1) : JsonValue.Create($"${name}"))]));
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res.Add( new JsonObject([ new(name, JsonValue.Create($"${name}"))]));
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}
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}
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}
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