public Statement Parse(LoonyParser parser, LoonyToken token, out bool trailingSemicolon)
{
trailingSemicolon = true;
var name = parser.Take(LoonyTokenType.Identifier).Contents;
TypeBase type = null;
Expression initializer = null;
if (parser.MatchAndTake(LoonyTokenType.Colon))
{
type = parser.ParseType();
}
if (type == null)
{
parser.Take(LoonyTokenType.Assign);
initializer = parser.ParseExpression();
}
else if (parser.MatchAndTake(LoonyTokenType.Assign))
{
initializer = parser.ParseExpression();
}
return(new VariableStatement(token, parser.Previous, name, type, initializer));
}
public Statement Parse(LoonyParser parser, LoonyToken token, out bool trailingSemicolon)
{
trailingSemicolon = true;
var value = parser.ParseExpression();
return new ReturnStatement(token, parser.Previous, value);
}
public Expression Parse(LoonyParser parser, LoonyToken token)
{
var expression = parser.ParseExpression();
parser.Take(LoonyTokenType.RightParen);
return(expression);
}
public Statement Parse(LoonyParser parser, LoonyToken token, out bool trailingSemicolon)
{
trailingSemicolon = true;
var value = parser.ParseExpression();
return(new ReturnStatement(token, parser.Previous, value));
}
public Statement Parse(LoonyParser parser, LoonyToken token, out bool trailingSemicolon)
{
trailingSemicolon = true;
var name = parser.Take(LoonyTokenType.Identifier).Contents;
TypeBase type = null;
Expression initializer = null;
if (parser.MatchAndTake(LoonyTokenType.Colon))
type = parser.ParseType();
if (type == null)
{
parser.Take(LoonyTokenType.Assign);
initializer = parser.ParseExpression();
}
else if (parser.MatchAndTake(LoonyTokenType.Assign))
{
initializer = parser.ParseExpression();
}
return new VariableStatement(token, parser.Previous, name, type, initializer);
}
public Expression Parse(LoonyParser parser, Expression left, LoonyToken token)
{
var right = parser.ParseExpression(Precedence - (_isRight ? 1 : 0));
return new BinaryOperatorExpression(token, left, right);
}
public Expression Parse(LoonyParser parser, LoonyToken token)
{
var expression = parser.ParseExpression();
parser.Take(LoonyTokenType.RightParen);
return expression;
}
public Expression Parse(LoonyParser parser, Expression left, LoonyToken token)
{
var right = parser.ParseExpression(Precedence - (_isRight ? 1 : 0));
return(new BinaryOperatorExpression(token, left, right));
}