public LuaStatement Parse(INextAwareEnumerator <Token> reader, IParserContext context)
{
reader.VerifyExpectedTokenAndMoveNext(Keywords.Function);
if (reader.Next.Value == LuaToken.Colon)
{
reader.MoveNext();
reader.MoveNext();
}
var functionName = reader.GetAndMoveNext();
reader.VerifyExpectedToken(LuaToken.LeftBracket);
var argumentNames = new List <string>();
reader.MoveNext();
while (reader.Current.Value != LuaToken.RightBracket)
{
argumentNames.Add(reader.Current.Value);
reader.MoveNext();
reader.VerifyExpectedToken(LuaToken.Comma, LuaToken.RightBracket);
if (reader.Current.Value == LuaToken.RightBracket)
{
break;
}
reader.MoveNext();
}
reader.VerifyExpectedTokenAndMoveNext(LuaToken.RightBracket);
var statementsParser = new StatementBlockParser(Keywords.End);
var body = statementsParser.ParseBlock(reader, context);
return(new FunctionDeclarationStatement(functionName.Value, argumentNames, body));
}
public override LuaStatement Parse(INextAwareEnumerator<Token> reader, IParserContext context)
{
reader.VerifyExpectedTokenAndMoveNext(Keywords.Function);
if (reader.Next.Value == LuaToken.Colon)
{
reader.MoveNext();
reader.MoveNext();
}
var functionName = reader.GetAndMoveNext();
reader.VerifyExpectedToken(LuaToken.LeftBracket);
var argumentNames = new List<string>();
reader.MoveNext();
while (reader.Current.Value != LuaToken.RightBracket)
{
argumentNames.Add(reader.Current.Value);
reader.MoveNext();
reader.VerifyExpectedToken(LuaToken.Comma, LuaToken.RightBracket);
if (reader.Current.Value == LuaToken.RightBracket)
break;
reader.MoveNext();
}
reader.VerifyExpectedTokenAndMoveNext(LuaToken.RightBracket);
var statementsParser = new StatementBlockParser(Keywords.End);
var body = statementsParser.ParseBlock(reader, context);
return new FunctionDeclarationStatement(functionName.Value,argumentNames,body);
}
public override LuaExpression Parse(INextAwareEnumerator<Token> reader, IParserContext context)
{
reader.VerifyExpectedToken(LuaToken.LeftBracket);
reader.MoveNext();
var expression = SyntaxParser.ReadExpression(reader, context);
reader.VerifyExpectedToken(LuaToken.RightBracket);
reader.MoveNext();
return new BracketedExpression(expression);
}
public LuaExpression Parse(INextAwareEnumerator <Token> reader, IParserContext context)
{
reader.VerifyExpectedToken(LuaToken.LeftBracket);
reader.MoveNext();
var expression = SyntaxParser.ReadExpression(reader, context);
reader.VerifyExpectedToken(LuaToken.RightBracket);
reader.MoveNext();
return(new BracketedExpression(expression));
}
public override LuaExpression Parse(INextAwareEnumerator<Token> reader, IParserContext context)
{
var name = reader.Current.Value;
reader.MoveNext();
reader.VerifyExpectedToken(LuaToken.LeftBracket);
var parametersParser = new ExpressionListParser();
var expression = new FunctionCallExpression(name, parametersParser.Parse(reader, context).ToList());
reader.VerifyExpectedToken(LuaToken.RightBracket);
return expression;
}
public override LuaExpression Parse(INextAwareEnumerator<Token> reader, IParserContext context)
{
reader.VerifyExpectedToken(LuaToken.LeftCurlyBrace);
reader.MoveNext();
var expressions = new List<LuaExpression>();
while (reader.Current.Value != LuaToken.RightCurlyBrace)
{
expressions.Add(SyntaxParser.ReadExpression(reader, context));
reader.VerifyExpectedToken(LuaToken.RightCurlyBrace, LuaToken.Comma);
}
reader.VerifyExpectedToken(LuaToken.RightCurlyBrace);
reader.MoveNext();
return new TableInitializerExpression(expressions);
}
public LuaExpression Parse(INextAwareEnumerator <Token> reader, IParserContext context)
{
reader.VerifyExpectedToken(LuaToken.LeftCurlyBrace);
reader.MoveNext();
var expressions = Enumerable.Empty <LuaExpression>();
if (reader.Current.Value != LuaToken.RightCurlyBrace)
{
var parser = new ExpressionListParser();
expressions = parser.Parse(reader, context);
reader.VerifyExpectedToken(LuaToken.RightCurlyBrace);
reader.MoveNext();
}
else
{
reader.VerifyExpectedTokenAndMoveNext(LuaToken.RightCurlyBrace);
}
return(new TableInitializerExpression(expressions));
}
public override LuaStatement Parse(INextAwareEnumerator<Token> reader, IParserContext context)
{
var scope = context.AcquireScope();
reader.VerifyExpectedToken(Keywords.Do);
reader.MoveNext();
var statements = new List<LuaStatement>();
while (reader.Current.Value != Keywords.End)
statements.Add(SyntaxParser.ReadStatement(reader, context));
reader.VerifyExpectedTokenAndMoveNext(Keywords.End);
context.ReleaseScope(scope);
return new DoEndBlock(new StatementBlock(statements));
}
public LuaExpression Parse(INextAwareEnumerator <Token> reader, IParserContext context)
{
var name = reader.Current.Value;
reader.MoveNext();
reader.VerifyExpectedTokenAndMoveNext(LuaToken.LeftBracket);
var parametersParser = new ExpressionListParser();
var expression = new FunctionCallExpression(name, parametersParser.Parse(reader, context).ToList());
reader.VerifyExpectedToken(LuaToken.RightBracket);
return(expression);
}
private IList<Variable> ReadDeclarations(INextAwareEnumerator<Token> reader)
{
var result = new List<Variable>();
while (reader.HasNext && reader.Next.Value != null)
{
var variable = new Variable(reader.Current.Value);
result.Add(variable);
reader.MoveNext();
reader.VerifyExpectedToken(LuaToken.Comma,LuaToken.EqualsSign);
if (reader.Current.Value == LuaToken.EqualsSign)
break;
reader.MoveNext();
}
return result;
}
public LuaStatement Parse(INextAwareEnumerator <Token> reader, IParserContext context)
{
var scope = context.AcquireScope();
reader.VerifyExpectedToken(Keywords.Do);
reader.MoveNext();
var statements = new List <LuaStatement>();
while (reader.Current.Value != Keywords.End)
{
statements.Add(SyntaxParser.ReadStatement(reader, context));
}
reader.VerifyExpectedTokenAndMoveNext(Keywords.End);
context.ReleaseScope(scope);
return(new DoEndBlock(new StatementBlock(statements)));
}
private IList <Variable> ReadDeclarations(INextAwareEnumerator <Token> reader)
{
var result = new List <Variable>();
while (reader.HasNext && reader.Next.Value != null)
{
var variable = new Variable(reader.Current.Value);
result.Add(variable);
reader.MoveNext();
reader.VerifyExpectedToken(LuaToken.Comma, LuaToken.EqualsSign);
if (reader.Current.Value == LuaToken.EqualsSign)
{
break;
}
reader.MoveNext();
}
return(result);
}
public static void VerifyExpectedTokenAndMoveNext(this INextAwareEnumerator <Token> enumerator,
params string[] expectedTokens)
{
enumerator.VerifyExpectedToken(expectedTokens);
enumerator.MoveNext();
}