78 lines
2.3 KiB
C#
78 lines
2.3 KiB
C#
using System.Text;
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using Canon.Core.Abstractions;
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using Canon.Core.GrammarParser;
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namespace Canon.Generator.GrammarGenerator;
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public class GeneratedTransformer : ITransformer
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{
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private readonly IDictionary<TerminatorBase, string> _shiftPointers;
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public string Name { get; }
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public IDictionary<Terminator, ReduceInformation> ReduceTable { get; }
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public IDictionary<TerminatorBase, ITransformer> ShiftTable { get; }
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public GeneratedTransformer(Dictionary<TerminatorBase, string> shiftTable,
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Dictionary<Terminator, ReduceInformation> reduceTable, string name)
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{
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ReduceTable = reduceTable;
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ShiftTable = new Dictionary<TerminatorBase, ITransformer>();
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_shiftPointers = shiftTable;
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Name = name;
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}
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public GeneratedTransformer()
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{
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ReduceTable = new Dictionary<Terminator, ReduceInformation>();
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ShiftTable = new Dictionary<TerminatorBase, ITransformer>();
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_shiftPointers = new Dictionary<TerminatorBase, string>();
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Name = Guid.NewGuid().ToString();
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}
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public void ConstructShiftTable(Dictionary<string, GeneratedTransformer> transformers)
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{
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foreach (KeyValuePair<TerminatorBase,string> pair in _shiftPointers)
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{
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ShiftTable.Add(pair.Key, transformers[pair.Value]);
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}
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}
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public override bool Equals(object? obj)
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{
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if (obj is not GeneratedTransformer other)
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{
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return false;
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}
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return Name == other.Name;
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}
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public override int GetHashCode() => Name.GetHashCode();
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public string GenerateCode()
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{
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StringBuilder builder = new();
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builder.Append("new GeneratedTransformer(new Dictionary<TerminatorBase, string>").Append("{");
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foreach (KeyValuePair<TerminatorBase, ITransformer> pair in ShiftTable)
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{
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builder.Append($" {{ {pair.Key.GenerateCode()}, \"{pair.Value.Name}\"}},");
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}
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builder.Append("}, ");
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builder.Append("new Dictionary<Terminator, ReduceInformation>{");
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foreach (KeyValuePair<Terminator,ReduceInformation> pair in ReduceTable)
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{
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builder.Append($" {{ {pair.Key.GenerateCode()}, {pair.Value.GenerateCode()}}},");
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}
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builder.Append($" }}, \"{Name}\")");
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return builder.ToString();
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}
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}
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