//formal-param-list ::= ((<type> <var-name>) (',' <type> <var-name>)*)?
private void ParseFormalParamList()
{
while (LookAheadToken.Value != ")")
{
Token paramType = NextToken();
Token paramName = NextToken();
if (paramType.Type != TokenType.Keyword &&
paramType.Type != TokenType.Ident)
{
ThrowCompilationException("Invalid parameter type '" + paramType.Value + "'");
}
if (paramName.Type != TokenType.Ident)
{
ThrowCompilationException("Invalid parameter name '" + paramName.Value + "'");
}
Symbol parameter = new Symbol(paramType.Value, paramName.Value,
SymbolKind.Parameter, _currentClassName);
_currentSub.Parameters.Add(parameter);
_methodSymTable.AddSymbol(parameter);
if (LookAheadToken.Value == ",")
{
NextToken();//Skip the comma
}
}
}
private void ParseClassVarDecl()
{
Contract.Requires(IsNextTokenClassVarDecl());
Token varKind = NextToken();
bool isStatic = varKind.Value == "static";
Token varType = NextToken();
Token varName = NextToken();
do
{
if (isStatic)
{
Symbol variable = new Symbol(
varType.Value, varName.Value, SymbolKind.Static, _currentClassName);
_classSymTable.AddSymbol(variable);
_codeGenerator.StaticDeclaration(variable);
}
else
{
Symbol variable = new Symbol(
varType.Value, varName.Value, SymbolKind.Field, _currentClassName);
_classSymTable.AddSymbol(variable);
_codeGenerator.FieldDeclaration(variable);
}
} while (LookAheadToken.Value == ",");
Match(new Token(TokenType.Symbol, ";"));
}