/* Parses block
* {do | while | repeat | if | for | function | local | assignOrFunctionCall}
* [return | break] */
Block Block()
{
var statements = new List<Statement>();
LastStatement lastStatement = null;
bool continueBlock = true;
while (continueBlock)
{
switch (lexer.Current.Symbol)
{
case Symbol.Do:
statements.Add(Do());
break;
case Symbol.While:
statements.Add(While());
break;
case Symbol.Repeat:
statements.Add(Repeat());
break;
case Symbol.If:
statements.Add(If());
break;
case Symbol.For:
statements.Add(For());
break;
case Symbol.Function:
statements.Add(Function());
break;
case Symbol.Local:
statements.Add(Local());
break;
case Symbol.Identifier:
case Symbol.LeftParen:
statements.Add(AssignOrFunctionCall());
break;
case Symbol.Return:
lastStatement = Return();
continueBlock = false;
break;
case Symbol.Break:
lastStatement = new LastStatement.Break();
continueBlock = false;
break;
default:
continueBlock = false;
break;
}
lexer.TryConsume(Symbol.SemiColon);
}
return new Block(statements, lastStatement);
}
Expr ILastStatementVisitor <Expr> .Visit(LastStatement.Break lastStatement)
{
return(Expr.Break(scope.BreakLabel()));
}
/* Parses block
* {do | while | repeat | if | for | function | local | assignOrFunctionCall}
* [return | break] */
Block Block()
{
var statements = new List <Statement>();
LastStatement lastStatement = null;
bool continueBlock = true;
while (continueBlock)
{
switch (lexer.Current.Symbol)
{
case Symbol.Do:
statements.Add(Do());
break;
case Symbol.While:
statements.Add(While());
break;
case Symbol.Repeat:
statements.Add(Repeat());
break;
case Symbol.If:
statements.Add(If());
break;
case Symbol.For:
statements.Add(For());
break;
case Symbol.Function:
statements.Add(Function());
break;
case Symbol.Local:
statements.Add(Local());
break;
case Symbol.Identifier:
case Symbol.LeftParen:
statements.Add(AssignOrFunctionCall());
break;
case Symbol.Return:
lastStatement = Return();
continueBlock = false;
break;
case Symbol.Break:
lastStatement = new LastStatement.Break();
continueBlock = false;
break;
default:
continueBlock = false;
break;
}
lexer.TryConsume(Symbol.SemiColon);
}
return(new Block(statements, lastStatement));
}
