private void ProcessEnumDeclaration()
{
Token enumName = _source.ReadNextTokenAndThrowIfAlreadyDefined();
ScriptEnum enumDefinition = new ScriptEnum(enumName.Name);
enumName.Define(TokenType.EnumType, enumDefinition);
enumName.IsVariableType = true;
_source.ExpectKeyword(PredefinedSymbol.OpenBrace);
int nextEnumValue = 0;
while (!_source.NextIsKeyword(PredefinedSymbol.CloseBrace))
{
Token enumEntry = _source.ReadNextTokenAndThrowIfAlreadyDefined();
KeywordToken nextToken = _source.ReadNextAsKeyword();
if (nextToken.SymbolType == PredefinedSymbol.SetEqual)
{
nextEnumValue = _source.ReadNextAsConstInt();
nextToken = _source.ReadNextAsKeyword();
}
enumDefinition.Values.Add(enumEntry.Name, nextEnumValue);
enumEntry.Define(TokenType.Constant, nextEnumValue);
nextEnumValue++;
if (nextToken.SymbolType == PredefinedSymbol.CloseBrace)
{
break;
}
else if (nextToken.SymbolType != PredefinedSymbol.Comma)
{
throw new CompilerMessage(ErrorCode.UnexpectedToken, "Expected comma at '" + nextToken.Name + "'");
}
}
_source.ExpectKeyword(PredefinedSymbol.Semicolon);
}
private void ProcessEnumDeclaration()
{
Token enumName = _source.ReadNextTokenAndThrowIfAlreadyDefined();
ScriptEnum enumDefinition = new ScriptEnum(enumName.Name);
enumName.Define(TokenType.EnumType, enumDefinition);
enumName.IsVariableType = true;
_source.ExpectKeyword(PredefinedSymbol.OpenBrace);
int nextEnumValue = 0;
while (!_source.NextIsKeyword(PredefinedSymbol.CloseBrace))
{
Token enumEntry = _source.ReadNextTokenAndThrowIfAlreadyDefined();
KeywordToken nextToken = _source.ReadNextAsKeyword();
if (nextToken.SymbolType == PredefinedSymbol.SetEqual)
{
nextEnumValue = _source.ReadNextAsConstInt();
nextToken = _source.ReadNextAsKeyword();
}
enumDefinition.Values.Add(enumEntry.Name, nextEnumValue);
enumEntry.Define(TokenType.Constant, nextEnumValue);
nextEnumValue++;
if (nextToken.SymbolType == PredefinedSymbol.CloseBrace)
{
break;
}
else if (nextToken.SymbolType != PredefinedSymbol.Comma)
{
throw new CompilerMessage(ErrorCode.UnexpectedToken, "Expected comma at '" + nextToken.Name + "'");
}
}
_source.ExpectKeyword(PredefinedSymbol.Semicolon);
}