//---------------------
// Парсер if
//---------------------
public static ASTNode ParseIf()
{
ASTNode branching;
GetNextToken();
ASTNode condition = null;
if (curTok.token == Tokens.Token.PARENTHESIS_L)
{
condition = ParseConditionIf();
GetNextToken();
}
else
{
ConsoleHelper.WriteErrorAST("Expected '('", curTok.y, curTok.x);
SkipToToken(Tokens.Token.BRACE_L);
}
ASTNode bodyIf;
if (curTok.token == Tokens.Token.BRACE_L)
{
bodyIf = new BodyMethodAST(ParseBrace(Area.METHOD, isCycleArea));
branching = new ConditionNodeAST(condition, bodyIf);
}
else
{
isRawToken = true;
bodyIf = MemberMethod(isCycleArea);
branching = new ConditionNodeAST(condition, bodyIf);
}
return(new IfAST(branching));
}
//---------------------
// Парсер while
//---------------------
public static ASTNode ParseWhile()
{
ASTNode condition = null;
ASTNode bodyWhile;
GetNextToken();
if (curTok.token != Tokens.Token.PARENTHESIS_L)
{
ConsoleHelper.WriteErrorAST("Expected '('", curTok.y, curTok.x);
SkipToToken(Tokens.Token.BRACE_L);
}
else
{
condition = ParseConditionIf();
GetNextToken();
}
if (curTok.token == Tokens.Token.BRACE_L)
{
bodyWhile = new BodyMethodAST(ParseBrace(Area.METHOD, true));
}
else
{
bodyWhile = MemberMethod(true);
CheckupClosedToken(Tokens.Token.SEMILICON);
}
return(new WhileAST(condition, bodyWhile));
}
//---------------------
// Парсер for
//---------------------
public static ASTNode ParseFor()
{
GetNextToken();
List <ASTNode> declaredVar = new List <ASTNode>();
ASTNode condition = null;
ASTNode postCondition = null;
ASTNode body;
if (curTok.token == Tokens.Token.PARENTHESIS_L)
{
declaredVar = ParseDeclaredVarInFor();
condition = ParseConditionFor();
postCondition = ParsePostConditionFor();
}
else
{
ConsoleHelper.WriteErrorAST("Expected '('", curTok.y, curTok.x);
}
if (curTok.token != Tokens.Token.PARENTHESIS_R)
{
ConsoleHelper.WriteErrorAST("Expected ')'", curTok.y, curTok.x);
}
GetNextToken();
if (curTok.token == Tokens.Token.BRACE_L)
{
body = new BodyMethodAST(ParseBrace(Area.METHOD, true));
}
else
{
body = MemberMethod(false);
if (curTok.token != Tokens.Token.SEMILICON)
{
ConsoleHelper.WriteErrorAST("Expected ';'", curTok.y, curTok.x);
}
}
return(new ForAST(declaredVar, new ConditionNodeAST(condition, body), postCondition));
}
