84 lines
2.8 KiB
C#
84 lines
2.8 KiB
C#
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using Google.Protobuf.Reflection;
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using System;
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namespace ProtoBuf.Reflection
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{
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internal struct Token
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{
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public static bool operator ==(Token x, Token y)
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{
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return x.Offset == y.Offset && x.File == y.File;
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}
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public static bool operator !=(Token x, Token y)
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{
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return x.Offset != y.Offset || x.File != y.File;
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}
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public override int GetHashCode() => Offset;
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public override bool Equals(object obj) => (obj is Token) && ((Token)obj).Offset == this.Offset;
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public bool Equals(Token token) => token.Offset == this.Offset;
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public int Offset { get; }
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public int LineNumber { get; }
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public string File { get; }
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public int ColumnNumber { get; }
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public TokenType Type { get; }
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public string Value { get; }
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public string LineContents { get; }
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internal Token(string value, int lineNumber, int columnNumber, TokenType type, string lineContents, int offset, string file)
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{
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Value = value;
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LineNumber = lineNumber;
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ColumnNumber = columnNumber;
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File = file;
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Type = type;
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LineContents = lineContents;
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Offset = offset;
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}
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public override string ToString() => $"({LineNumber},{ColumnNumber}) '{Value}'";
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internal Exception Throw(string error = null, bool isError = true)
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{
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throw new ParserException(this, string.IsNullOrWhiteSpace(error) ? $"syntax error: '{Value}'" : error, isError);
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}
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internal void Assert(TokenType type, string value = null)
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{
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if (value != null)
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{
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if (type != Type || value != Value)
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{
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Throw($"expected {type} '{value}'");
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}
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}
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else
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{
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if (type != Type)
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{
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Throw($"expected {type}");
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}
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}
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}
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internal bool Is(TokenType type, string value = null)
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{
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if (type != Type) return false;
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if (value != null && value != Value) return false;
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return true;
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}
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internal void RequireProto2(ParserContext ctx)
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{
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if(ctx.Syntax != FileDescriptorProto.SyntaxProto2)
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{
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var msg = "'" + Value + "' requires " + FileDescriptorProto.SyntaxProto2 + " syntax";
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ctx.Errors.Error(this, msg);
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}
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}
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internal Error TypeNotFound(string typeName = null) => new Error(this,
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$"type not found: '{(string.IsNullOrWhiteSpace(typeName) ? Value : typeName)}'", true);
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}
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}
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