상속: ICSharpCode.NRefactory.Ast.StatementWithEmbeddedStatement
예제 #1
0
파일: Parser.cs 프로젝트: almazik/ILSpy
	void EmbeddedStatement(
#line  2297 "VBNET.ATG" 
out Statement statement) {

#line  2299 "VBNET.ATG" 
		Statement embeddedStatement = null;
		statement = null;
		Expression expr = null;
		string name = String.Empty;
		List<Expression> p = null;
		
		switch (la.kind) {
		case 94: {
			lexer.NextToken();

#line  2305 "VBNET.ATG" 
			ExitType exitType = ExitType.None; 
			switch (la.kind) {
			case 167: {
				lexer.NextToken();

#line  2307 "VBNET.ATG" 
				exitType = ExitType.Sub; 
				break;
			}
			case 100: {
				lexer.NextToken();

#line  2309 "VBNET.ATG" 
				exitType = ExitType.Function; 
				break;
			}
			case 146: {
				lexer.NextToken();

#line  2311 "VBNET.ATG" 
				exitType = ExitType.Property; 
				break;
			}
			case 83: {
				lexer.NextToken();

#line  2313 "VBNET.ATG" 
				exitType = ExitType.Do; 
				break;
			}
			case 98: {
				lexer.NextToken();

#line  2315 "VBNET.ATG" 
				exitType = ExitType.For; 
				break;
			}
			case 174: {
				lexer.NextToken();

#line  2317 "VBNET.ATG" 
				exitType = ExitType.Try; 
				break;
			}
			case 181: {
				lexer.NextToken();

#line  2319 "VBNET.ATG" 
				exitType = ExitType.While; 
				break;
			}
			case 155: {
				lexer.NextToken();

#line  2321 "VBNET.ATG" 
				exitType = ExitType.Select; 
				break;
			}
			default: SynErr(255); break;
			}

#line  2323 "VBNET.ATG" 
			statement = new ExitStatement(exitType); 
			break;
		}
		case 174: {
			TryStatement(
#line  2324 "VBNET.ATG" 
out statement);
			break;
		}
		case 187: {
			lexer.NextToken();

#line  2325 "VBNET.ATG" 
			ContinueType continueType = ContinueType.None; 
			if (la.kind == 83 || la.kind == 98 || la.kind == 181) {
				if (la.kind == 83) {
					lexer.NextToken();

#line  2325 "VBNET.ATG" 
					continueType = ContinueType.Do; 
				} else if (la.kind == 98) {
					lexer.NextToken();

#line  2325 "VBNET.ATG" 
					continueType = ContinueType.For; 
				} else {
					lexer.NextToken();

#line  2325 "VBNET.ATG" 
					continueType = ContinueType.While; 
				}
			}

#line  2325 "VBNET.ATG" 
			statement = new ContinueStatement(continueType); 
			break;
		}
		case 171: {
			lexer.NextToken();
			if (StartOf(27)) {
				Expr(
#line  2327 "VBNET.ATG" 
out expr);
			}

#line  2327 "VBNET.ATG" 
			statement = new ThrowStatement(expr); 
			break;
		}
		case 154: {
			lexer.NextToken();
			if (StartOf(27)) {
				Expr(
#line  2329 "VBNET.ATG" 
out expr);
			}

#line  2329 "VBNET.ATG" 
			statement = new ReturnStatement(expr); 
			break;
		}
		case 168: {
			lexer.NextToken();
			Expr(
#line  2331 "VBNET.ATG" 
out expr);
			EndOfStmt();
			Block(
#line  2331 "VBNET.ATG" 
out embeddedStatement);
			Expect(88);
			Expect(168);

#line  2332 "VBNET.ATG" 
			statement = new LockStatement(expr, embeddedStatement); 
			break;
		}
		case 149: {
			lexer.NextToken();
			Identifier();

#line  2334 "VBNET.ATG" 
			name = t.val; 
			if (la.kind == 24) {
				lexer.NextToken();
				if (StartOf(30)) {
					ArgumentList(
#line  2335 "VBNET.ATG" 
out p);
				}
				Expect(25);
			}

#line  2336 "VBNET.ATG" 
			statement = new RaiseEventStatement(name, p); 
			break;
		}
		case 182: {
			WithStatement(
#line  2338 "VBNET.ATG" 
out statement);
			break;
		}
		case 42: {
			lexer.NextToken();

#line  2340 "VBNET.ATG" 
			Expression handlerExpr = null; 
			Expr(
#line  2341 "VBNET.ATG" 
out expr);
			Expect(12);
			Expr(
#line  2341 "VBNET.ATG" 
out handlerExpr);

#line  2343 "VBNET.ATG" 
			statement = new AddHandlerStatement(expr, handlerExpr);
			
			break;
		}
		case 152: {
			lexer.NextToken();

#line  2346 "VBNET.ATG" 
			Expression handlerExpr = null; 
			Expr(
#line  2347 "VBNET.ATG" 
out expr);
			Expect(12);
			Expr(
#line  2347 "VBNET.ATG" 
out handlerExpr);

#line  2349 "VBNET.ATG" 
			statement = new RemoveHandlerStatement(expr, handlerExpr);
			
			break;
		}
		case 181: {
			lexer.NextToken();
			Expr(
#line  2352 "VBNET.ATG" 
out expr);
			EndOfStmt();
			Block(
#line  2353 "VBNET.ATG" 
out embeddedStatement);
			Expect(88);
			Expect(181);

#line  2355 "VBNET.ATG" 
			statement = new DoLoopStatement(expr, embeddedStatement, ConditionType.While, ConditionPosition.Start);
			
			break;
		}
		case 83: {
			lexer.NextToken();

#line  2360 "VBNET.ATG" 
			ConditionType conditionType = ConditionType.None;
			
			if (la.kind == 177 || la.kind == 181) {
				WhileOrUntil(
#line  2363 "VBNET.ATG" 
out conditionType);
				Expr(
#line  2363 "VBNET.ATG" 
out expr);
				EndOfStmt();
				Block(
#line  2364 "VBNET.ATG" 
out embeddedStatement);
				Expect(118);

#line  2367 "VBNET.ATG" 
				statement = new DoLoopStatement(expr, 
				                               embeddedStatement, 
				                               conditionType == ConditionType.While ? ConditionType.DoWhile : conditionType, 
				                               ConditionPosition.Start);
				
			} else if (la.kind == 1 || la.kind == 13) {
				EndOfStmt();
				Block(
#line  2374 "VBNET.ATG" 
out embeddedStatement);
				Expect(118);
				if (la.kind == 177 || la.kind == 181) {
					WhileOrUntil(
#line  2375 "VBNET.ATG" 
out conditionType);
					Expr(
#line  2375 "VBNET.ATG" 
out expr);
				}

#line  2377 "VBNET.ATG" 
				statement = new DoLoopStatement(expr, embeddedStatement, conditionType, ConditionPosition.End);
				
			} else SynErr(256);
			break;
		}
		case 98: {
			lexer.NextToken();

#line  2382 "VBNET.ATG" 
			Expression group = null;
			TypeReference typeReference;
			string        typeName;
			Location startLocation = t.Location;
			
			if (la.kind == 85) {
				lexer.NextToken();
				LoopControlVariable(
#line  2389 "VBNET.ATG" 
out typeReference, out typeName);
				Expect(109);
				Expr(
#line  2390 "VBNET.ATG" 
out group);
				EndOfStmt();
				Block(
#line  2391 "VBNET.ATG" 
out embeddedStatement);
				Expect(128);
				if (StartOf(27)) {
					Expr(
#line  2392 "VBNET.ATG" 
out expr);
				}

#line  2394 "VBNET.ATG" 
				statement = new ForeachStatement(typeReference, 
				                                typeName,
				                                group, 
				                                embeddedStatement, 
				                                expr);
				statement.StartLocation = startLocation;
				statement.EndLocation   = t.EndLocation;
				
				
			} else if (StartOf(13)) {

#line  2405 "VBNET.ATG" 
				Expression start = null;
				Expression end = null;
				Expression step = null;
				Expression nextExpr = null;List<Expression> nextExpressions = null;
				
				LoopControlVariable(
#line  2410 "VBNET.ATG" 
out typeReference, out typeName);
				Expect(11);
				Expr(
#line  2411 "VBNET.ATG" 
out start);
				Expect(172);
				Expr(
#line  2411 "VBNET.ATG" 
out end);
				if (la.kind == 162) {
					lexer.NextToken();
					Expr(
#line  2411 "VBNET.ATG" 
out step);
				}
				EndOfStmt();
				Block(
#line  2412 "VBNET.ATG" 
out embeddedStatement);
				Expect(128);
				if (StartOf(27)) {
					Expr(
#line  2415 "VBNET.ATG" 
out nextExpr);

#line  2415 "VBNET.ATG" 
					nextExpressions = new List<Expression>(); nextExpressions.Add(nextExpr); 
					while (la.kind == 12) {
						lexer.NextToken();
						Expr(
#line  2416 "VBNET.ATG" 
out nextExpr);

#line  2416 "VBNET.ATG" 
						nextExpressions.Add(nextExpr); 
					}
				}

#line  2419 "VBNET.ATG" 
				statement = new ForNextStatement(typeReference, typeName, start, end, step, embeddedStatement, nextExpressions);
				
			} else SynErr(257);
			break;
		}
		case 92: {
			lexer.NextToken();
			Expr(
#line  2423 "VBNET.ATG" 
out expr);

#line  2423 "VBNET.ATG" 
			statement = new ErrorStatement(expr); 
			break;
		}
		case 151: {
			lexer.NextToken();

#line  2425 "VBNET.ATG" 
			bool isPreserve = false; 
			if (la.kind == 144) {
				lexer.NextToken();

#line  2425 "VBNET.ATG" 
				isPreserve = true; 
			}
			ReDimClause(
#line  2426 "VBNET.ATG" 
out expr);

#line  2428 "VBNET.ATG" 
			ReDimStatement reDimStatement = new ReDimStatement(isPreserve);
			statement = reDimStatement;
			SafeAdd(reDimStatement, reDimStatement.ReDimClauses, expr as InvocationExpression);
			
			while (la.kind == 12) {
				lexer.NextToken();
				ReDimClause(
#line  2432 "VBNET.ATG" 
out expr);

#line  2433 "VBNET.ATG" 
				SafeAdd(reDimStatement, reDimStatement.ReDimClauses, expr as InvocationExpression); 
			}
			break;
		}
		case 91: {
			lexer.NextToken();
			Expr(
#line  2437 "VBNET.ATG" 
out expr);

#line  2438 "VBNET.ATG" 
			List<Expression> arrays = new List<Expression>();
			if (expr != null) { arrays.Add(expr);}
			EraseStatement eraseStatement = new EraseStatement(arrays);
			
			
			while (la.kind == 12) {
				lexer.NextToken();
				Expr(
#line  2443 "VBNET.ATG" 
out expr);

#line  2443 "VBNET.ATG" 
				if (expr != null) { arrays.Add(expr); }
			}

#line  2444 "VBNET.ATG" 
			statement = eraseStatement; 
			break;
		}
		case 163: {
			lexer.NextToken();

#line  2446 "VBNET.ATG" 
			statement = new StopStatement(); 
			break;
		}
		case 106: {
			lexer.NextToken();

#line  2448 "VBNET.ATG" 
			Location ifStartLocation = t.Location; 
			Expr(
#line  2448 "VBNET.ATG" 
out expr);
			if (la.kind == 170) {
				lexer.NextToken();
			}
			if (la.kind == 1 || la.kind == 13) {
				EndOfStmt();
				Block(
#line  2451 "VBNET.ATG" 
out embeddedStatement);

#line  2453 "VBNET.ATG" 
				IfElseStatement ifStatement = new IfElseStatement(expr, embeddedStatement);
				ifStatement.StartLocation = ifStartLocation;
				Location elseIfStart;
				
				while (la.kind == 87 || 
#line  2459 "VBNET.ATG" 
IsElseIf()) {
					if (
#line  2459 "VBNET.ATG" 
IsElseIf()) {
						Expect(86);

#line  2459 "VBNET.ATG" 
						elseIfStart = t.Location; 
						Expect(106);
					} else {
						lexer.NextToken();

#line  2460 "VBNET.ATG" 
						elseIfStart = t.Location; 
					}

#line  2462 "VBNET.ATG" 
					Expression condition = null; Statement block = null; 
					Expr(
#line  2463 "VBNET.ATG" 
out condition);
					if (la.kind == 170) {
						lexer.NextToken();
					}
					EndOfStmt();
					Block(
#line  2464 "VBNET.ATG" 
out block);

#line  2466 "VBNET.ATG" 
					ElseIfSection elseIfSection = new ElseIfSection(condition, block);
					elseIfSection.StartLocation = elseIfStart;
					elseIfSection.EndLocation = t.Location;
					elseIfSection.Parent = ifStatement;
					ifStatement.ElseIfSections.Add(elseIfSection);
					
				}
				if (la.kind == 86) {
					lexer.NextToken();
					EndOfStmt();
					Block(
#line  2475 "VBNET.ATG" 
out embeddedStatement);

#line  2477 "VBNET.ATG" 
					ifStatement.FalseStatement.Add(embeddedStatement);
					
				}
				Expect(88);
				Expect(106);

#line  2481 "VBNET.ATG" 
				ifStatement.EndLocation = t.Location;
				statement = ifStatement;
				
			} else if (StartOf(36)) {

#line  2486 "VBNET.ATG" 
				IfElseStatement ifStatement = new IfElseStatement(expr);
				ifStatement.StartLocation = ifStartLocation;
				
				SingleLineStatementList(
#line  2489 "VBNET.ATG" 
ifStatement.TrueStatement);
				if (la.kind == 86) {
					lexer.NextToken();
					if (StartOf(36)) {
						SingleLineStatementList(
#line  2492 "VBNET.ATG" 
ifStatement.FalseStatement);
					}
				}

#line  2494 "VBNET.ATG" 
				ifStatement.EndLocation = t.Location; statement = ifStatement; 
			} else SynErr(258);
			break;
		}
		case 155: {
			lexer.NextToken();
			if (la.kind == 57) {
				lexer.NextToken();
			}
			Expr(
#line  2497 "VBNET.ATG" 
out expr);
			EndOfStmt();

#line  2498 "VBNET.ATG" 
			List<SwitchSection> selectSections = new List<SwitchSection>();
			Statement block = null;
			
			while (la.kind == 57) {

#line  2502 "VBNET.ATG" 
				List<CaseLabel> caseClauses = null; Location caseLocation = la.Location; 
				lexer.NextToken();
				CaseClauses(
#line  2503 "VBNET.ATG" 
out caseClauses);
				if (
#line  2503 "VBNET.ATG" 
IsNotStatementSeparator()) {
					lexer.NextToken();
				}
				EndOfStmt();

#line  2505 "VBNET.ATG" 
				SwitchSection selectSection = new SwitchSection(caseClauses);
				selectSection.StartLocation = caseLocation;
				
				Block(
#line  2508 "VBNET.ATG" 
out block);

#line  2510 "VBNET.ATG" 
				selectSection.Children = block.Children;
				selectSection.EndLocation = t.EndLocation;
				selectSections.Add(selectSection);
				
			}

#line  2515 "VBNET.ATG" 
			statement = new SwitchStatement(expr, selectSections); 
			Expect(88);
			Expect(155);
			break;
		}
		case 135: {

#line  2517 "VBNET.ATG" 
			OnErrorStatement onErrorStatement = null; 
			OnErrorStatement(
#line  2518 "VBNET.ATG" 
out onErrorStatement);

#line  2518 "VBNET.ATG" 
			statement = onErrorStatement; 
			break;
		}
		case 104: {

#line  2519 "VBNET.ATG" 
			GotoStatement goToStatement = null; 
			GotoStatement(
#line  2520 "VBNET.ATG" 
out goToStatement);

#line  2520 "VBNET.ATG" 
			statement = goToStatement; 
			break;
		}
		case 153: {

#line  2521 "VBNET.ATG" 
			ResumeStatement resumeStatement = null; 
			ResumeStatement(
#line  2522 "VBNET.ATG" 
out resumeStatement);

#line  2522 "VBNET.ATG" 
			statement = resumeStatement; 
			break;
		}
		case 2: case 3: case 4: case 5: case 6: case 7: case 8: case 9: case 10: case 24: case 43: case 47: case 49: case 50: case 51: case 52: case 54: case 59: case 60: case 61: case 62: case 63: case 64: case 65: case 66: case 68: case 69: case 70: case 72: case 73: case 74: case 75: case 76: case 77: case 82: case 84: case 95: case 96: case 102: case 111: case 117: case 119: case 124: case 125: case 127: case 130: case 133: case 134: case 144: case 159: case 160: case 165: case 169: case 173: case 175: case 176: case 177: case 191: case 192: case 193: case 194: case 195: case 196: case 197: case 198: case 199: case 200: case 205: {

#line  2525 "VBNET.ATG" 
			Expression val = null;
			AssignmentOperatorType op;
			
			bool mustBeAssignment = la.kind == Tokens.Plus  || la.kind == Tokens.Minus ||
			                        la.kind == Tokens.Not   || la.kind == Tokens.Times;
			
			SimpleExpr(
#line  2531 "VBNET.ATG" 
out expr);
			if (StartOf(37)) {
				AssignmentOperator(
#line  2533 "VBNET.ATG" 
out op);
				Expr(
#line  2533 "VBNET.ATG" 
out val);

#line  2533 "VBNET.ATG" 
				expr = new AssignmentExpression(expr, op, val); 
			} else if (la.kind == 1 || la.kind == 13 || la.kind == 86) {

#line  2534 "VBNET.ATG" 
				if (mustBeAssignment) Error("error in assignment."); 
			} else SynErr(259);

#line  2537 "VBNET.ATG" 
			// a field reference expression that stands alone is a
			// invocation expression without parantheses and arguments
			if(expr is MemberReferenceExpression || expr is IdentifierExpression) {
				expr = new InvocationExpression(expr);
			}
			statement = new ExpressionStatement(expr);
			
			break;
		}
		case 56: {
			lexer.NextToken();
			SimpleExpr(
#line  2544 "VBNET.ATG" 
out expr);

#line  2544 "VBNET.ATG" 
			statement = new ExpressionStatement(expr); 
			break;
		}
		case 189: {
			lexer.NextToken();

#line  2546 "VBNET.ATG" 
			Statement block;  
			if (
#line  2547 "VBNET.ATG" 
Peek(1).kind == Tokens.As) {

#line  2548 "VBNET.ATG" 
				LocalVariableDeclaration resourceAquisition = new LocalVariableDeclaration(Modifiers.None); 
				VariableDeclarator(
#line  2549 "VBNET.ATG" 
resourceAquisition.Variables);
				while (la.kind == 12) {
					lexer.NextToken();
					VariableDeclarator(
#line  2551 "VBNET.ATG" 
resourceAquisition.Variables);
				}
				Block(
#line  2553 "VBNET.ATG" 
out block);

#line  2554 "VBNET.ATG" 
				statement = new UsingStatement(resourceAquisition, block); 
			} else if (StartOf(27)) {
				Expr(
#line  2555 "VBNET.ATG" 
out expr);
				Block(
#line  2556 "VBNET.ATG" 
out block);

#line  2557 "VBNET.ATG" 
				statement = new UsingStatement(new ExpressionStatement(expr), block); 
			} else SynErr(260);
			Expect(88);
			Expect(189);
			break;
		}
		default: SynErr(261); break;
		}
	}
		public override object VisitForNextStatement(ForNextStatement forNextStatement, object data)
		{
			if (forNextStatement.EmbeddedStatement.EndLocation.IsEmpty) {
				return base.VisitForNextStatement(forNextStatement, data);
			} else {
				endLocationStack.Push(forNextStatement.EmbeddedStatement.EndLocation);
				AddVariable(forNextStatement.TypeReference,
				            forNextStatement.VariableName,
				            forNextStatement.StartLocation,
				            forNextStatement.EndLocation,
				            false, false,
				            forNextStatement.Start,
				            null, 
				            false,
				            forNextStatement.StartLocation);
				
				base.VisitForNextStatement(forNextStatement, data);
				
				endLocationStack.Pop();
				return null;
			}
		}
예제 #3
0
 public virtual object VisitForNextStatement(ForNextStatement forNextStatement, object data) {
     throw CreateException(forNextStatement);
 }
		/// <summary>
		/// Converts from an NRefactory VB.NET for next loop:
		/// 
		/// for i As Integer = 0 To 4
		/// Next
		/// 
		/// to Python's:
		/// 
		/// i = 0
		/// while i &lt; 5:
		/// </summary>
		public override object TrackedVisitForNextStatement(ForNextStatement forNextStatement, object data)
		{
			// Convert the for loop's initializers.
			string variableName = forNextStatement.VariableName;
			AppendIndented(variableName);
			Append(" = ");
			forNextStatement.Start.AcceptVisitor(this, data);
			AppendLine();
			
			// Convert the for loop's test expression.
			AppendIndented("while ");
			Append(variableName);
			Append(" <= ");
			forNextStatement.End.AcceptVisitor(this, data);
			Append(":");
			AppendLine();
			
			// Visit the for loop's body.
			IncreaseIndent();
			forNextStatement.EmbeddedStatement.AcceptVisitor(this, data);
			
			// Convert the for loop's increment statement.
			AppendIndented(variableName);
			Append(" = ");
			Append(variableName);
			Append(" + ");
			if (forNextStatement.Step.IsNull) {
				Append("1");
			} else {
				forNextStatement.Step.AcceptVisitor(this, data);
			}
			AppendLine();
			DecreaseIndent();
			
			return null;
		}
 public override object TrackedVisitForNextStatement(ForNextStatement forNextStatement, object data)
 {
     Console.WriteLine("VisitForNextStatement");
     return null;
 }
		public object VisitForNextStatement(ForNextStatement forNextStatement, object data)
		{
			if (forNextStatement.TypeReference.IsNull)
				return MakeManualLoop(forNextStatement);
			B.ForStatement fs = new B.ForStatement(GetLexicalInfo(forNextStatement));
			fs.Block = ConvertBlock(forNextStatement.EmbeddedStatement);
			fs.Declarations.Add(new B.Declaration(forNextStatement.VariableName, null));
			B.Expression start = ConvertExpression(forNextStatement.Start);
			Expression end = forNextStatement.End;
			if (forNextStatement.Step == null || forNextStatement.Step.IsNull) {
				// range only goes to end - 1, so increment end
				end = Expression.AddInteger(end, 1);
				fs.Iterator = MakeMethodCall("range", start, ConvertExpression(end));
			} else {
				PrimitiveExpression stepPE = forNextStatement.Step as PrimitiveExpression;
				if (stepPE == null || !(stepPE.Value is int)) {
					AddError(forNextStatement, "Step must be an integer literal");
				} else {
					if ((int)stepPE.Value < 0)
						end = Expression.AddInteger(end, -1);
					else
						end = Expression.AddInteger(end, 1);
				}
				fs.Iterator = MakeMethodCall("range", start, ConvertExpression(end), ConvertExpression(forNextStatement.Step));
			}
			return fs;
		}
 public object VisitForNextStatement(ForNextStatement forNextStatement, object data)
 {
     throw new NotImplementedException ();
 }
		public virtual object TrackedVisitForNextStatement(ForNextStatement forNextStatement, object data) {
			return base.VisitForNextStatement(forNextStatement, data);
		}
			public void VisitStatement (ForNextStatement statement, MethodProperties meth)
			{
				meth.CyclometricComplexity++;
				VisitExpression(statement.LoopVariableExpression, meth);
				
				foreach(Expression innerExpression in statement.NextExpressions)
					VisitExpression(innerExpression, meth);
				
				foreach(var innerStatement in statement.EmbeddedStatement.Children)
					VisitStatement(innerStatement, meth);
			}
        void ConvertForStatement(ForStatement forStatement)
        {
            //   ForStatement -> ForNextStatement when for-loop is simple

            // only the following forms of the for-statement are allowed:
            // for (TypeReference name = start; name < oneAfterEnd; name += step)
            // for (name = start; name < oneAfterEnd; name += step)
            // for (TypeReference name = start; name <= end; name += step)
            // for (name = start; name <= end; name += step)
            // for (TypeReference name = start; name > oneAfterEnd; name -= step)
            // for (name = start; name > oneAfterEnd; name -= step)
            // for (TypeReference name = start; name >= end; name -= step)
            // for (name = start; name >= end; name -= step)

            // check if the form is valid and collect TypeReference, name, start, end and step
            if (forStatement.Initializers.Count != 1)
                return;
            if (forStatement.Iterator.Count != 1)
                return;
            ExpressionStatement statement = forStatement.Iterator[0] as ExpressionStatement;
            if (statement == null)
                return;
            AssignmentExpression iterator = statement.Expression as AssignmentExpression;
            if (iterator == null || (iterator.Op != AssignmentOperatorType.Add && iterator.Op != AssignmentOperatorType.Subtract))
                return;
            IdentifierExpression iteratorIdentifier = iterator.Left as IdentifierExpression;
            if (iteratorIdentifier == null)
                return;
            PrimitiveExpression stepExpression = iterator.Right as PrimitiveExpression;
            if (stepExpression == null || !(stepExpression.Value is int))
                return;
            int step = (int)stepExpression.Value;
            if (iterator.Op == AssignmentOperatorType.Subtract)
                step = -step;

            BinaryOperatorExpression condition = forStatement.Condition as BinaryOperatorExpression;
            if (condition == null || !(condition.Left is IdentifierExpression))
                return;
            if ((condition.Left as IdentifierExpression).Identifier != iteratorIdentifier.Identifier)
                return;
            Expression end;
            if (iterator.Op == AssignmentOperatorType.Subtract)
            {
                if (condition.Op == BinaryOperatorType.GreaterThanOrEqual)
                {
                    end = condition.Right;
                }
                else if (condition.Op == BinaryOperatorType.GreaterThan)
                {
                    end = Expression.AddInteger(condition.Right, 1);
                }
                else
                {
                    return;
                }
            }
            else
            {
                if (condition.Op == BinaryOperatorType.LessThanOrEqual)
                {
                    end = condition.Right;
                }
                else if (condition.Op == BinaryOperatorType.LessThan)
                {
                    end = Expression.AddInteger(condition.Right, -1);
                }
                else
                {
                    return;
                }
            }

            Expression start;
            TypeReference typeReference = null;
            LocalVariableDeclaration varDecl = forStatement.Initializers[0] as LocalVariableDeclaration;
            if (varDecl != null)
            {
                if (varDecl.Variables.Count != 1
                    || varDecl.Variables[0].Name != iteratorIdentifier.Identifier
                    || varDecl.Variables[0].Initializer == null)
                    return;
                typeReference = varDecl.GetTypeForVariable(0);
                start = varDecl.Variables[0].Initializer;
            }
            else
            {
                statement = forStatement.Initializers[0] as ExpressionStatement;
                if (statement == null)
                    return;
                AssignmentExpression assign = statement.Expression as AssignmentExpression;
                if (assign == null || assign.Op != AssignmentOperatorType.Assign)
                    return;
                if (!(assign.Left is IdentifierExpression))
                    return;
                if ((assign.Left as IdentifierExpression).Identifier != iteratorIdentifier.Identifier)
                    return;
                start = assign.Right;
            }

            var forNextStatement = new ForNextStatement();
            forNextStatement.TypeReference = typeReference;
            forNextStatement.VariableName = iteratorIdentifier.Identifier;
            forNextStatement.Start = start;
            forNextStatement.End = end;
            forNextStatement.Step = (step == 1) ? null : new PrimitiveExpression(step, step.ToString(System.Globalization.NumberFormatInfo.InvariantInfo));
            forNextStatement.EmbeddedStatement = forStatement.EmbeddedStatement;

            ReplaceCurrentNode(forNextStatement);
        }
 public virtual bool VisitForNextStatement(ForNextStatement forNextStatement, object d)
 {
     if ((forNextStatement == null)) {
         return SetFailure();
     }
     if ((d == null)) {
         return SetFailure();
     }
     if ((forNextStatement.Start == null)) {
         return SetFailure();
     }
     if ((forNextStatement.End == null)) {
         return SetFailure();
     }
     if ((forNextStatement.Step == null)) {
         return SetFailure();
     }
     if ((forNextStatement.NextExpressions == null)) {
         return SetFailure();
     }
     if ((forNextStatement.TypeReference == null)) {
         return SetFailure();
     }
     if ((forNextStatement.LoopVariableExpression == null)) {
         return SetFailure();
     }
     if ((forNextStatement.EmbeddedStatement == null)) {
         return SetFailure();
     }
     if(forNextStatement.GetType() != d.GetType()) {return SetFailure();}
     var data = (ForNextStatement)d;
     if (!IsMatch(forNextStatement, data)) {
         return SetFailure();
     }
     forNextStatement.Start.AcceptVisitor(this, data.Start);
     forNextStatement.End.AcceptVisitor(this, data.End);
     forNextStatement.Step.AcceptVisitor(this, data.Step);
     if (forNextStatement.NextExpressions.Count == data.NextExpressions.Count) {
     for (int i=0; i<forNextStatement.NextExpressions.Count;i++) {
         Expression o = forNextStatement.NextExpressions[i];
         if(o == null){return SetFailure();}
         if((bool)o.AcceptVisitor(this, data.NextExpressions[i]) == false) return SetFailure();
     }			}			else { return SetFailure(); }
     forNextStatement.TypeReference.AcceptVisitor(this, data.TypeReference);
     forNextStatement.LoopVariableExpression.AcceptVisitor(this, data.LoopVariableExpression);
     return forNextStatement.EmbeddedStatement.AcceptVisitor(this, data.EmbeddedStatement);
 }
		public override object VisitForNextStatement(ForNextStatement forNextStatement, object data)
		{
			return base.VisitForNextStatement(forNextStatement, true);
		}
 private bool IsMatch(ForNextStatement left, ForNextStatement data)
 {
     return false;
 }
예제 #14
0
	void EmbeddedStatement(
#line  2755 "VBNET.ATG" 
out Statement statement) {

#line  2757 "VBNET.ATG" 
		Statement embeddedStatement = null;
		statement = null;
		Expression expr = null;
		string name = String.Empty;
		List<Expression> p = null;
		
		if (la.kind == 107) {
			lexer.NextToken();

#line  2763 "VBNET.ATG" 
			ExitType exitType = ExitType.None; 
			switch (la.kind) {
			case 195: {
				lexer.NextToken();

#line  2765 "VBNET.ATG" 
				exitType = ExitType.Sub; 
				break;
			}
			case 114: {
				lexer.NextToken();

#line  2767 "VBNET.ATG" 
				exitType = ExitType.Function; 
				break;
			}
			case 171: {
				lexer.NextToken();

#line  2769 "VBNET.ATG" 
				exitType = ExitType.Property; 
				break;
			}
			case 95: {
				lexer.NextToken();

#line  2771 "VBNET.ATG" 
				exitType = ExitType.Do; 
				break;
			}
			case 111: {
				lexer.NextToken();

#line  2773 "VBNET.ATG" 
				exitType = ExitType.For; 
				break;
			}
			case 203: {
				lexer.NextToken();

#line  2775 "VBNET.ATG" 
				exitType = ExitType.Try; 
				break;
			}
			case 216: {
				lexer.NextToken();

#line  2777 "VBNET.ATG" 
				exitType = ExitType.While; 
				break;
			}
			case 182: {
				lexer.NextToken();

#line  2779 "VBNET.ATG" 
				exitType = ExitType.Select; 
				break;
			}
			default: SynErr(273); break;
			}

#line  2781 "VBNET.ATG" 
			statement = new ExitStatement(exitType); 
		} else if (la.kind == 203) {
			TryStatement(
#line  2782 "VBNET.ATG" 
out statement);
		} else if (la.kind == 76) {
			lexer.NextToken();

#line  2783 "VBNET.ATG" 
			ContinueType continueType = ContinueType.None; 
			if (la.kind == 95 || la.kind == 111 || la.kind == 216) {
				if (la.kind == 95) {
					lexer.NextToken();

#line  2783 "VBNET.ATG" 
					continueType = ContinueType.Do; 
				} else if (la.kind == 111) {
					lexer.NextToken();

#line  2783 "VBNET.ATG" 
					continueType = ContinueType.For; 
				} else {
					lexer.NextToken();

#line  2783 "VBNET.ATG" 
					continueType = ContinueType.While; 
				}
			}

#line  2783 "VBNET.ATG" 
			statement = new ContinueStatement(continueType); 
		} else if (la.kind == 200) {
			lexer.NextToken();
			if (StartOf(29)) {
				Expr(
#line  2785 "VBNET.ATG" 
out expr);
			}

#line  2785 "VBNET.ATG" 
			statement = new ThrowStatement(expr); 
		} else if (la.kind == 180) {
			lexer.NextToken();
			if (StartOf(29)) {
				Expr(
#line  2787 "VBNET.ATG" 
out expr);
			}

#line  2787 "VBNET.ATG" 
			statement = new ReturnStatement(expr); 
		} else if (la.kind == 196) {
			lexer.NextToken();
			Expr(
#line  2789 "VBNET.ATG" 
out expr);
			EndOfStmt();
			Block(
#line  2789 "VBNET.ATG" 
out embeddedStatement);
			Expect(100);
			Expect(196);

#line  2790 "VBNET.ATG" 
			statement = new LockStatement(expr, embeddedStatement); 
		} else if (la.kind == 174) {
			lexer.NextToken();
			Identifier();

#line  2792 "VBNET.ATG" 
			name = t.val; 
			if (la.kind == 25) {
				lexer.NextToken();
				if (StartOf(37)) {
					ArgumentList(
#line  2793 "VBNET.ATG" 
out p);
				}
				Expect(26);
			}

#line  2795 "VBNET.ATG" 
			statement = new RaiseEventStatement(name, p);
			
		} else if (la.kind == 218) {
			WithStatement(
#line  2798 "VBNET.ATG" 
out statement);
		} else if (la.kind == 43) {
			lexer.NextToken();

#line  2800 "VBNET.ATG" 
			Expression handlerExpr = null; 
			Expr(
#line  2801 "VBNET.ATG" 
out expr);
			Expect(12);
			Expr(
#line  2801 "VBNET.ATG" 
out handlerExpr);

#line  2803 "VBNET.ATG" 
			statement = new AddHandlerStatement(expr, handlerExpr);
			
		} else if (la.kind == 178) {
			lexer.NextToken();

#line  2806 "VBNET.ATG" 
			Expression handlerExpr = null; 
			Expr(
#line  2807 "VBNET.ATG" 
out expr);
			Expect(12);
			Expr(
#line  2807 "VBNET.ATG" 
out handlerExpr);

#line  2809 "VBNET.ATG" 
			statement = new RemoveHandlerStatement(expr, handlerExpr);
			
		} else if (la.kind == 216) {
			lexer.NextToken();
			Expr(
#line  2812 "VBNET.ATG" 
out expr);
			EndOfStmt();
			Block(
#line  2813 "VBNET.ATG" 
out embeddedStatement);
			Expect(100);
			Expect(216);

#line  2815 "VBNET.ATG" 
			statement = new DoLoopStatement(expr, embeddedStatement, ConditionType.While, ConditionPosition.Start);
			
		} else if (la.kind == 95) {
			lexer.NextToken();

#line  2820 "VBNET.ATG" 
			ConditionType conditionType = ConditionType.None;
			
			if (la.kind == 209 || la.kind == 216) {
				WhileOrUntil(
#line  2823 "VBNET.ATG" 
out conditionType);
				Expr(
#line  2823 "VBNET.ATG" 
out expr);
				EndOfStmt();
				Block(
#line  2824 "VBNET.ATG" 
out embeddedStatement);
				Expect(138);

#line  2827 "VBNET.ATG" 
				statement = new DoLoopStatement(expr, 
				                               embeddedStatement, 
				                               conditionType == ConditionType.While ? ConditionType.DoWhile : conditionType, 
				                               ConditionPosition.Start);
				
			} else if (la.kind == 1 || la.kind == 11) {
				EndOfStmt();
				Block(
#line  2834 "VBNET.ATG" 
out embeddedStatement);
				Expect(138);
				if (la.kind == 209 || la.kind == 216) {
					WhileOrUntil(
#line  2835 "VBNET.ATG" 
out conditionType);
					Expr(
#line  2835 "VBNET.ATG" 
out expr);
				}

#line  2837 "VBNET.ATG" 
				statement = new DoLoopStatement(expr, embeddedStatement, conditionType, ConditionPosition.End);
				
			} else SynErr(274);
		} else if (la.kind == 111) {
			lexer.NextToken();

#line  2842 "VBNET.ATG" 
			Expression group = null;
			TypeReference typeReference;
			string        typeName;
			Location startLocation = t.Location;
			
			if (la.kind == 97) {
				lexer.NextToken();
				LoopControlVariable(
#line  2849 "VBNET.ATG" 
out typeReference, out typeName);
				Expect(125);
				Expr(
#line  2850 "VBNET.ATG" 
out group);
				EndOfStmt();
				Block(
#line  2851 "VBNET.ATG" 
out embeddedStatement);
				Expect(149);
				if (StartOf(29)) {
					Expr(
#line  2852 "VBNET.ATG" 
out expr);
				}

#line  2854 "VBNET.ATG" 
				statement = new ForeachStatement(typeReference, 
				                                typeName,
				                                group, 
				                                embeddedStatement, 
				                                expr);
				statement.StartLocation = startLocation;
				statement.EndLocation   = t.EndLocation;
				
				
			} else if (StartOf(38)) {

#line  2865 "VBNET.ATG" 
				Expression start = null;
				Expression end = null;
				Expression step = null;
				Expression variableExpr = null;
				Expression nextExpr = null;
				List<Expression> nextExpressions = null;
				
				if (
#line  2872 "VBNET.ATG" 
IsLoopVariableDeclaration()) {
					LoopControlVariable(
#line  2873 "VBNET.ATG" 
out typeReference, out typeName);
				} else {

#line  2875 "VBNET.ATG" 
					typeReference = null; typeName = null; 
					SimpleExpr(
#line  2876 "VBNET.ATG" 
out variableExpr);
				}
				Expect(10);
				Expr(
#line  2878 "VBNET.ATG" 
out start);
				Expect(201);
				Expr(
#line  2878 "VBNET.ATG" 
out end);
				if (la.kind == 190) {
					lexer.NextToken();
					Expr(
#line  2878 "VBNET.ATG" 
out step);
				}
				EndOfStmt();
				Block(
#line  2879 "VBNET.ATG" 
out embeddedStatement);
				Expect(149);
				if (StartOf(29)) {
					Expr(
#line  2882 "VBNET.ATG" 
out nextExpr);

#line  2884 "VBNET.ATG" 
					nextExpressions = new List<Expression>();
					nextExpressions.Add(nextExpr);
					
					while (la.kind == 12) {
						lexer.NextToken();
						Expr(
#line  2887 "VBNET.ATG" 
out nextExpr);

#line  2887 "VBNET.ATG" 
						nextExpressions.Add(nextExpr); 
					}
				}

#line  2890 "VBNET.ATG" 
				statement = new ForNextStatement {
				TypeReference = typeReference,
				VariableName = typeName, 
				LoopVariableExpression = variableExpr,
				Start = start, 
				End = end, 
				Step = step, 
				EmbeddedStatement = embeddedStatement, 
				NextExpressions = nextExpressions
				};
				
			} else SynErr(275);
		} else if (la.kind == 105) {
			lexer.NextToken();
			Expr(
#line  2903 "VBNET.ATG" 
out expr);

#line  2903 "VBNET.ATG" 
			statement = new ErrorStatement(expr); 
		} else if (la.kind == 176) {
			lexer.NextToken();

#line  2905 "VBNET.ATG" 
			bool isPreserve = false; 
			if (la.kind == 169) {
				lexer.NextToken();

#line  2905 "VBNET.ATG" 
				isPreserve = true; 
			}
			ReDimClause(
#line  2906 "VBNET.ATG" 
out expr);

#line  2908 "VBNET.ATG" 
			ReDimStatement reDimStatement = new ReDimStatement(isPreserve);
			statement = reDimStatement;
			SafeAdd(reDimStatement, reDimStatement.ReDimClauses, expr as InvocationExpression);
			
			while (la.kind == 12) {
				lexer.NextToken();
				ReDimClause(
#line  2912 "VBNET.ATG" 
out expr);

#line  2913 "VBNET.ATG" 
				SafeAdd(reDimStatement, reDimStatement.ReDimClauses, expr as InvocationExpression); 
			}
		} else if (la.kind == 104) {
			lexer.NextToken();
			Expr(
#line  2917 "VBNET.ATG" 
out expr);

#line  2919 "VBNET.ATG" 
			EraseStatement eraseStatement = new EraseStatement();
			if (expr != null) { SafeAdd(eraseStatement, eraseStatement.Expressions, expr);}
			
			while (la.kind == 12) {
				lexer.NextToken();
				Expr(
#line  2922 "VBNET.ATG" 
out expr);

#line  2922 "VBNET.ATG" 
				if (expr != null) { SafeAdd(eraseStatement, eraseStatement.Expressions, expr); }
			}

#line  2923 "VBNET.ATG" 
			statement = eraseStatement; 
		} else if (la.kind == 191) {
			lexer.NextToken();

#line  2925 "VBNET.ATG" 
			statement = new StopStatement(); 
		} else if (
#line  2927 "VBNET.ATG" 
la.kind == Tokens.If) {
			Expect(122);

#line  2928 "VBNET.ATG" 
			Location ifStartLocation = t.Location; 
			Expr(
#line  2928 "VBNET.ATG" 
out expr);
			if (la.kind == 199) {
				lexer.NextToken();
			}
			if (la.kind == 1 || la.kind == 11) {
				EndOfStmt();
				Block(
#line  2931 "VBNET.ATG" 
out embeddedStatement);

#line  2933 "VBNET.ATG" 
				IfElseStatement ifStatement = new IfElseStatement(expr, embeddedStatement);
				ifStatement.StartLocation = ifStartLocation;
				Location elseIfStart;
				
				while (la.kind == 99 || 
#line  2939 "VBNET.ATG" 
IsElseIf()) {
					if (
#line  2939 "VBNET.ATG" 
IsElseIf()) {
						Expect(98);

#line  2939 "VBNET.ATG" 
						elseIfStart = t.Location; 
						Expect(122);
					} else {
						lexer.NextToken();

#line  2940 "VBNET.ATG" 
						elseIfStart = t.Location; 
					}

#line  2942 "VBNET.ATG" 
					Expression condition = null; Statement block = null; 
					Expr(
#line  2943 "VBNET.ATG" 
out condition);
					if (la.kind == 199) {
						lexer.NextToken();
					}
					EndOfStmt();
					Block(
#line  2944 "VBNET.ATG" 
out block);

#line  2946 "VBNET.ATG" 
					ElseIfSection elseIfSection = new ElseIfSection(condition, block);
					elseIfSection.StartLocation = elseIfStart;
					elseIfSection.EndLocation = t.Location;
					elseIfSection.Parent = ifStatement;
					ifStatement.ElseIfSections.Add(elseIfSection);
					
				}
				if (la.kind == 98) {
					lexer.NextToken();
					EndOfStmt();
					Block(
#line  2955 "VBNET.ATG" 
out embeddedStatement);

#line  2957 "VBNET.ATG" 
					ifStatement.FalseStatement.Add(embeddedStatement);
					
				}
				Expect(100);
				Expect(122);

#line  2961 "VBNET.ATG" 
				ifStatement.EndLocation = t.Location;
				statement = ifStatement;
				
			} else if (StartOf(39)) {

#line  2966 "VBNET.ATG" 
				IfElseStatement ifStatement = new IfElseStatement(expr);
				ifStatement.StartLocation = ifStartLocation;
				
				SingleLineStatementList(
#line  2969 "VBNET.ATG" 
ifStatement.TrueStatement);
				if (la.kind == 98) {
					lexer.NextToken();
					if (StartOf(39)) {
						SingleLineStatementList(
#line  2972 "VBNET.ATG" 
ifStatement.FalseStatement);
					}
				}

#line  2974 "VBNET.ATG" 
				ifStatement.EndLocation = t.Location; statement = ifStatement; 
			} else SynErr(276);
		} else if (la.kind == 182) {
			lexer.NextToken();
			if (la.kind == 61) {
				lexer.NextToken();
			}
			Expr(
#line  2977 "VBNET.ATG" 
out expr);
			EndOfStmt();

#line  2978 "VBNET.ATG" 
			List<SwitchSection> selectSections = new List<SwitchSection>();
			Statement block = null;
			
			while (la.kind == 61) {

#line  2982 "VBNET.ATG" 
				List<CaseLabel> caseClauses = null; Location caseLocation = la.Location; 
				lexer.NextToken();
				CaseClauses(
#line  2983 "VBNET.ATG" 
out caseClauses);
				if (
#line  2983 "VBNET.ATG" 
IsNotStatementSeparator()) {
					lexer.NextToken();
				}
				EndOfStmt();

#line  2985 "VBNET.ATG" 
				SwitchSection selectSection = new SwitchSection(caseClauses);
				selectSection.StartLocation = caseLocation;
				
				Block(
#line  2988 "VBNET.ATG" 
out block);

#line  2990 "VBNET.ATG" 
				selectSection.Children = block.Children;
				selectSection.EndLocation = t.EndLocation;
				selectSections.Add(selectSection);
				
			}

#line  2996 "VBNET.ATG" 
			statement = new SwitchStatement(expr, selectSections);
			
			Expect(100);
			Expect(182);
		} else if (la.kind == 157) {

#line  2999 "VBNET.ATG" 
			OnErrorStatement onErrorStatement = null; 
			OnErrorStatement(
#line  3000 "VBNET.ATG" 
out onErrorStatement);

#line  3000 "VBNET.ATG" 
			statement = onErrorStatement; 
		} else if (la.kind == 119) {

#line  3001 "VBNET.ATG" 
			GotoStatement goToStatement = null; 
			GotoStatement(
#line  3002 "VBNET.ATG" 
out goToStatement);

#line  3002 "VBNET.ATG" 
			statement = goToStatement; 
		} else if (la.kind == 179) {

#line  3003 "VBNET.ATG" 
			ResumeStatement resumeStatement = null; 
			ResumeStatement(
#line  3004 "VBNET.ATG" 
out resumeStatement);

#line  3004 "VBNET.ATG" 
			statement = resumeStatement; 
		} else if (StartOf(38)) {

#line  3007 "VBNET.ATG" 
			Expression val = null;
			AssignmentOperatorType op;
			
			bool mustBeAssignment = la.kind == Tokens.Plus  || la.kind == Tokens.Minus ||
			                        la.kind == Tokens.Not   || la.kind == Tokens.Times;
			
			SimpleExpr(
#line  3013 "VBNET.ATG" 
out expr);
			if (StartOf(40)) {
				AssignmentOperator(
#line  3015 "VBNET.ATG" 
out op);
				Expr(
#line  3015 "VBNET.ATG" 
out val);

#line  3015 "VBNET.ATG" 
				expr = new AssignmentExpression(expr, op, val); 
			} else if (la.kind == 1 || la.kind == 11 || la.kind == 98) {

#line  3016 "VBNET.ATG" 
				if (mustBeAssignment) Error("error in assignment."); 
			} else SynErr(277);

#line  3019 "VBNET.ATG" 
			// a field reference expression that stands alone is a
			// invocation expression without parantheses and arguments
			if(expr is MemberReferenceExpression || expr is IdentifierExpression) {
				expr = new InvocationExpression(expr);
			}
			statement = new ExpressionStatement(expr);
			
		} else if (la.kind == 60) {
			lexer.NextToken();
			SimpleExpr(
#line  3026 "VBNET.ATG" 
out expr);

#line  3026 "VBNET.ATG" 
			statement = new ExpressionStatement(expr); 
		} else if (la.kind == 211) {
			lexer.NextToken();

#line  3028 "VBNET.ATG" 
			Statement block;  
			if (
#line  3029 "VBNET.ATG" 
Peek(1).kind == Tokens.As) {

#line  3030 "VBNET.ATG" 
				LocalVariableDeclaration resourceAquisition = new LocalVariableDeclaration(Modifiers.None); 
				VariableDeclarator(
#line  3031 "VBNET.ATG" 
resourceAquisition.Variables);
				while (la.kind == 12) {
					lexer.NextToken();
					VariableDeclarator(
#line  3033 "VBNET.ATG" 
resourceAquisition.Variables);
				}
				Block(
#line  3035 "VBNET.ATG" 
out block);

#line  3037 "VBNET.ATG" 
				statement = new UsingStatement(resourceAquisition, block);
				
			} else if (StartOf(29)) {
				Expr(
#line  3039 "VBNET.ATG" 
out expr);
				Block(
#line  3040 "VBNET.ATG" 
out block);

#line  3041 "VBNET.ATG" 
				statement = new UsingStatement(new ExpressionStatement(expr), block); 
			} else SynErr(278);
			Expect(100);
			Expect(211);
		} else if (StartOf(41)) {
			LocalDeclarationStatement(
#line  3044 "VBNET.ATG" 
out statement);
		} else SynErr(279);
	}
예제 #15
0
		public override object VisitForNextStatement(ForNextStatement forNextStatement, object data)
		{
			// uses LocalVariableDeclaration, we just have to put the end location on the stack
			if (forNextStatement.EmbeddedStatement.EndLocation.IsEmpty) {
				return base.VisitForNextStatement(forNextStatement, data);
			} else {
				endLocationStack.Push(forNextStatement.EmbeddedStatement.EndLocation);
				base.VisitForNextStatement(forNextStatement, data);
				endLocationStack.Pop();
				return null;
			}
		}
예제 #16
0
		public virtual object VisitForNextStatement(ForNextStatement forNextStatement, object data) {
			throw new global::System.NotImplementedException("ForNextStatement");
		}
예제 #17
0
 public virtual object VisitForNextStatement(ForNextStatement forNextStatement, object data)
 {
     Debug.Assert((forNextStatement != null));
     Debug.Assert((forNextStatement.Start != null));
     Debug.Assert((forNextStatement.End != null));
     Debug.Assert((forNextStatement.Step != null));
     Debug.Assert((forNextStatement.NextExpressions != null));
     Debug.Assert((forNextStatement.TypeReference != null));
     Debug.Assert((forNextStatement.LoopVariableExpression != null));
     Debug.Assert((forNextStatement.EmbeddedStatement != null));
     forNextStatement.Start.AcceptVisitor(this, data);
     forNextStatement.End.AcceptVisitor(this, data);
     forNextStatement.Step.AcceptVisitor(this, data);
     foreach (Expression o in forNextStatement.NextExpressions) {
         Debug.Assert(o != null);
         o.AcceptVisitor(this, data);
     }
     forNextStatement.TypeReference.AcceptVisitor(this, data);
     forNextStatement.LoopVariableExpression.AcceptVisitor(this, data);
     return forNextStatement.EmbeddedStatement.AcceptVisitor(this, data);
 }
		public sealed override object VisitForNextStatement(ForNextStatement forNextStatement, object data) {
			this.BeginVisit(forNextStatement);
			object result = this.TrackedVisitForNextStatement(forNextStatement, data);
			this.EndVisit(forNextStatement);
			return result;
		}
		public virtual object VisitForNextStatement(ForNextStatement forNextStatement, object data) {
			Debug.Assert((forNextStatement != null));
			Debug.Assert((forNextStatement.Start != null));
			Debug.Assert((forNextStatement.End != null));
			Debug.Assert((forNextStatement.Step != null));
			Debug.Assert((forNextStatement.NextExpressions != null));
			Debug.Assert((forNextStatement.TypeReference != null));
			Debug.Assert((forNextStatement.LoopVariableExpression != null));
			Debug.Assert((forNextStatement.EmbeddedStatement != null));
			nodeStack.Push(forNextStatement.Start);
			forNextStatement.Start.AcceptVisitor(this, data);
			forNextStatement.Start = ((Expression)(nodeStack.Pop()));
			nodeStack.Push(forNextStatement.End);
			forNextStatement.End.AcceptVisitor(this, data);
			forNextStatement.End = ((Expression)(nodeStack.Pop()));
			nodeStack.Push(forNextStatement.Step);
			forNextStatement.Step.AcceptVisitor(this, data);
			forNextStatement.Step = ((Expression)(nodeStack.Pop()));
			for (int i = 0; i < forNextStatement.NextExpressions.Count; i++) {
				Expression o = forNextStatement.NextExpressions[i];
				Debug.Assert(o != null);
				nodeStack.Push(o);
				o.AcceptVisitor(this, data);
				o = (Expression)nodeStack.Pop();
				if (o == null)
					forNextStatement.NextExpressions.RemoveAt(i--);
				else
					forNextStatement.NextExpressions[i] = o;
			}
			nodeStack.Push(forNextStatement.TypeReference);
			forNextStatement.TypeReference.AcceptVisitor(this, data);
			forNextStatement.TypeReference = ((TypeReference)(nodeStack.Pop()));
			nodeStack.Push(forNextStatement.LoopVariableExpression);
			forNextStatement.LoopVariableExpression.AcceptVisitor(this, data);
			forNextStatement.LoopVariableExpression = ((Expression)(nodeStack.Pop()));
			nodeStack.Push(forNextStatement.EmbeddedStatement);
			forNextStatement.EmbeddedStatement.AcceptVisitor(this, data);
			forNextStatement.EmbeddedStatement = ((Statement)(nodeStack.Pop()));
			return null;
		}
예제 #20
0
파일: Parser.cs 프로젝트: Altaxo/Altaxo
	void EmbeddedStatement(
//#line  3070 "VBNET.ATG" 
out Statement statement) {

//#line  3072 "VBNET.ATG" 
		Statement embeddedStatement = null;
		statement = null;
		Expression expr = null;
		string name = String.Empty;
		List<Expression> p = null;
		Location startLocation = la.Location;
		
		if (la.kind == 120) {
			lexer.NextToken();

//#line  3080 "VBNET.ATG" 
			ExitType exitType = ExitType.None; 
			switch (la.kind) {
			case 210: {
				lexer.NextToken();

//#line  3082 "VBNET.ATG" 
				exitType = ExitType.Sub; 
				break;
			}
			case 127: {
				lexer.NextToken();

//#line  3084 "VBNET.ATG" 
				exitType = ExitType.Function; 
				break;
			}
			case 186: {
				lexer.NextToken();

//#line  3086 "VBNET.ATG" 
				exitType = ExitType.Property; 
				break;
			}
			case 108: {
				lexer.NextToken();

//#line  3088 "VBNET.ATG" 
				exitType = ExitType.Do; 
				break;
			}
			case 124: {
				lexer.NextToken();

//#line  3090 "VBNET.ATG" 
				exitType = ExitType.For; 
				break;
			}
			case 218: {
				lexer.NextToken();

//#line  3092 "VBNET.ATG" 
				exitType = ExitType.Try; 
				break;
			}
			case 231: {
				lexer.NextToken();

//#line  3094 "VBNET.ATG" 
				exitType = ExitType.While; 
				break;
			}
			case 197: {
				lexer.NextToken();

//#line  3096 "VBNET.ATG" 
				exitType = ExitType.Select; 
				break;
			}
			default: SynErr(298); break;
			}

//#line  3098 "VBNET.ATG" 
			statement = new ExitStatement(exitType); 
		} else if (la.kind == 218) {
			TryStatement(
//#line  3099 "VBNET.ATG" 
out statement);
		} else if (la.kind == 89) {
			lexer.NextToken();

//#line  3100 "VBNET.ATG" 
			ContinueType continueType = ContinueType.None; 
			if (la.kind == 108 || la.kind == 124 || la.kind == 231) {
				if (la.kind == 108) {
					lexer.NextToken();

//#line  3100 "VBNET.ATG" 
					continueType = ContinueType.Do; 
				} else if (la.kind == 124) {
					lexer.NextToken();

//#line  3100 "VBNET.ATG" 
					continueType = ContinueType.For; 
				} else {
					lexer.NextToken();

//#line  3100 "VBNET.ATG" 
					continueType = ContinueType.While; 
				}
			}

//#line  3100 "VBNET.ATG" 
			statement = new ContinueStatement(continueType); 
		} else if (la.kind == 215) {
			lexer.NextToken();
			if (StartOf(24)) {
				Expr(
//#line  3102 "VBNET.ATG" 
out expr);
			}

//#line  3102 "VBNET.ATG" 
			statement = new ThrowStatement(expr); 
		} else if (la.kind == 195) {
			lexer.NextToken();
			if (StartOf(24)) {
				Expr(
//#line  3104 "VBNET.ATG" 
out expr);
			}

//#line  3104 "VBNET.ATG" 
			statement = new ReturnStatement(expr); 
		} else if (la.kind == 211) {
			lexer.NextToken();
			Expr(
//#line  3106 "VBNET.ATG" 
out expr);
			EndOfStmt();
			Block(
//#line  3106 "VBNET.ATG" 
out embeddedStatement);
			Expect(113);
			Expect(211);

//#line  3107 "VBNET.ATG" 
			statement = new LockStatement(expr, embeddedStatement); 
		} else if (la.kind == 189) {
			lexer.NextToken();
			Identifier();

//#line  3109 "VBNET.ATG" 
			name = t.val; 
			if (la.kind == 37) {
				lexer.NextToken();
				if (StartOf(43)) {
					ArgumentList(
//#line  3110 "VBNET.ATG" 
out p);
				}
				Expect(38);
			}

//#line  3112 "VBNET.ATG" 
			statement = new RaiseEventStatement(name, p);
			
		} else if (la.kind == 233) {
			WithStatement(
//#line  3115 "VBNET.ATG" 
out statement);
		} else if (la.kind == 56) {
			lexer.NextToken();

//#line  3117 "VBNET.ATG" 
			Expression handlerExpr = null; 
			Expr(
//#line  3118 "VBNET.ATG" 
out expr);
			Expect(22);
			Expr(
//#line  3118 "VBNET.ATG" 
out handlerExpr);

//#line  3120 "VBNET.ATG" 
			statement = new AddHandlerStatement(expr, handlerExpr);
			
		} else if (la.kind == 193) {
			lexer.NextToken();

//#line  3123 "VBNET.ATG" 
			Expression handlerExpr = null; 
			Expr(
//#line  3124 "VBNET.ATG" 
out expr);
			Expect(22);
			Expr(
//#line  3124 "VBNET.ATG" 
out handlerExpr);

//#line  3126 "VBNET.ATG" 
			statement = new RemoveHandlerStatement(expr, handlerExpr);
			
		} else if (la.kind == 231) {
			lexer.NextToken();
			Expr(
//#line  3129 "VBNET.ATG" 
out expr);
			EndOfStmt();
			Block(
//#line  3130 "VBNET.ATG" 
out embeddedStatement);
			Expect(113);
			Expect(231);

//#line  3132 "VBNET.ATG" 
			statement = new DoLoopStatement(expr, embeddedStatement, ConditionType.While, ConditionPosition.Start);
			
		} else if (la.kind == 108) {
			lexer.NextToken();

//#line  3137 "VBNET.ATG" 
			ConditionType conditionType = ConditionType.None;
			
			if (la.kind == 224 || la.kind == 231) {
				WhileOrUntil(
//#line  3140 "VBNET.ATG" 
out conditionType);
				Expr(
//#line  3140 "VBNET.ATG" 
out expr);
				EndOfStmt();
				Block(
//#line  3141 "VBNET.ATG" 
out embeddedStatement);
				Expect(152);

//#line  3144 "VBNET.ATG" 
				statement = new DoLoopStatement(expr, 
				                               embeddedStatement, 
				                               conditionType == ConditionType.While ? ConditionType.DoWhile : conditionType, 
				                               ConditionPosition.Start);
				
			} else if (la.kind == 1 || la.kind == 21) {
				EndOfStmt();
				Block(
//#line  3151 "VBNET.ATG" 
out embeddedStatement);
				Expect(152);
				if (la.kind == 224 || la.kind == 231) {
					WhileOrUntil(
//#line  3152 "VBNET.ATG" 
out conditionType);
					Expr(
//#line  3152 "VBNET.ATG" 
out expr);
				}

//#line  3154 "VBNET.ATG" 
				statement = new DoLoopStatement(expr, embeddedStatement, conditionType, ConditionPosition.End);
				
			} else SynErr(299);
		} else if (la.kind == 124) {
			lexer.NextToken();

//#line  3159 "VBNET.ATG" 
			Expression group = null;
			TypeReference typeReference;
			string        typeName;
			
			if (la.kind == 110) {
				lexer.NextToken();
				LoopControlVariable(
//#line  3165 "VBNET.ATG" 
out typeReference, out typeName);
				Expect(138);
				Expr(
//#line  3166 "VBNET.ATG" 
out group);
				EndOfStmt();
				Block(
//#line  3167 "VBNET.ATG" 
out embeddedStatement);
				Expect(163);
				if (StartOf(24)) {
					Expr(
//#line  3168 "VBNET.ATG" 
out expr);
				}

//#line  3170 "VBNET.ATG" 
				statement = new ForeachStatement(typeReference, 
				                                typeName,
				                                group, 
				                                embeddedStatement, 
				                                expr);
				statement.StartLocation = startLocation;
				statement.EndLocation   = t.EndLocation;
				
				
			} else if (StartOf(44)) {

//#line  3181 "VBNET.ATG" 
				Expression start = null;
				Expression end = null;
				Expression step = null;
				Expression variableExpr = null;
				Expression nextExpr = null;
				List<Expression> nextExpressions = null;
				
				if (
//#line  3188 "VBNET.ATG" 
IsLoopVariableDeclaration()) {
					LoopControlVariable(
//#line  3189 "VBNET.ATG" 
out typeReference, out typeName);
				} else {

//#line  3191 "VBNET.ATG" 
					typeReference = null; typeName = null; 
					SimpleExpr(
//#line  3192 "VBNET.ATG" 
out variableExpr);
				}
				Expect(20);
				Expr(
//#line  3194 "VBNET.ATG" 
out start);
				Expect(216);
				Expr(
//#line  3194 "VBNET.ATG" 
out end);
				if (la.kind == 205) {
					lexer.NextToken();
					Expr(
//#line  3194 "VBNET.ATG" 
out step);
				}
				EndOfStmt();
				Block(
//#line  3195 "VBNET.ATG" 
out embeddedStatement);
				Expect(163);
				if (StartOf(24)) {
					Expr(
//#line  3198 "VBNET.ATG" 
out nextExpr);

//#line  3200 "VBNET.ATG" 
					nextExpressions = new List<Expression>();
					nextExpressions.Add(nextExpr);
					
					while (la.kind == 22) {
						lexer.NextToken();
						Expr(
//#line  3203 "VBNET.ATG" 
out nextExpr);

//#line  3203 "VBNET.ATG" 
						nextExpressions.Add(nextExpr); 
					}
				}

//#line  3206 "VBNET.ATG" 
				statement = new ForNextStatement {
				TypeReference = typeReference,
				VariableName = typeName, 
				LoopVariableExpression = variableExpr,
				Start = start, 
				End = end, 
				Step = step, 
				EmbeddedStatement = embeddedStatement, 
				NextExpressions = nextExpressions
				};
				
			} else SynErr(300);
		} else if (la.kind == 118) {
			lexer.NextToken();
			Expr(
//#line  3219 "VBNET.ATG" 
out expr);

//#line  3219 "VBNET.ATG" 
			statement = new ErrorStatement(expr); 
		} else if (la.kind == 191) {
			lexer.NextToken();

//#line  3221 "VBNET.ATG" 
			bool isPreserve = false; 
			if (la.kind == 184) {
				lexer.NextToken();

//#line  3221 "VBNET.ATG" 
				isPreserve = true; 
			}
			ReDimClause(
//#line  3222 "VBNET.ATG" 
out expr);

//#line  3224 "VBNET.ATG" 
			ReDimStatement reDimStatement = new ReDimStatement(isPreserve);
			statement = reDimStatement;
			SafeAdd(reDimStatement, reDimStatement.ReDimClauses, expr as InvocationExpression);
			
			while (la.kind == 22) {
				lexer.NextToken();
				ReDimClause(
//#line  3228 "VBNET.ATG" 
out expr);

//#line  3229 "VBNET.ATG" 
				SafeAdd(reDimStatement, reDimStatement.ReDimClauses, expr as InvocationExpression); 
			}
		} else if (la.kind == 117) {
			lexer.NextToken();
			Expr(
//#line  3233 "VBNET.ATG" 
out expr);

//#line  3235 "VBNET.ATG" 
			EraseStatement eraseStatement = new EraseStatement();
			if (expr != null) { SafeAdd(eraseStatement, eraseStatement.Expressions, expr);}
			
			while (la.kind == 22) {
				lexer.NextToken();
				Expr(
//#line  3238 "VBNET.ATG" 
out expr);

//#line  3238 "VBNET.ATG" 
				if (expr != null) { SafeAdd(eraseStatement, eraseStatement.Expressions, expr); }
			}

//#line  3239 "VBNET.ATG" 
			statement = eraseStatement; 
		} else if (la.kind == 206) {
			lexer.NextToken();

//#line  3241 "VBNET.ATG" 
			statement = new StopStatement(); 
		} else if (
//#line  3243 "VBNET.ATG" 
la.kind == Tokens.If) {
			Expect(135);

//#line  3244 "VBNET.ATG" 
			Location ifStartLocation = t.Location; 
			Expr(
//#line  3244 "VBNET.ATG" 
out expr);
			if (la.kind == 214) {
				lexer.NextToken();
			}
			if (la.kind == 1 || la.kind == 21) {
				EndOfStmt();
				Block(
//#line  3247 "VBNET.ATG" 
out embeddedStatement);

//#line  3249 "VBNET.ATG" 
				IfElseStatement ifStatement = new IfElseStatement(expr, embeddedStatement);
				ifStatement.StartLocation = ifStartLocation;
				Location elseIfStart;
				
				while (la.kind == 112 || 
//#line  3255 "VBNET.ATG" 
IsElseIf()) {
					if (
//#line  3255 "VBNET.ATG" 
IsElseIf()) {
						Expect(111);

//#line  3255 "VBNET.ATG" 
						elseIfStart = t.Location; 
						Expect(135);
					} else {
						lexer.NextToken();

//#line  3256 "VBNET.ATG" 
						elseIfStart = t.Location; 
					}

//#line  3258 "VBNET.ATG" 
					Expression condition = null; Statement block = null; 
					Expr(
//#line  3259 "VBNET.ATG" 
out condition);
					if (la.kind == 214) {
						lexer.NextToken();
					}
					EndOfStmt();
					Block(
//#line  3260 "VBNET.ATG" 
out block);

//#line  3262 "VBNET.ATG" 
					ElseIfSection elseIfSection = new ElseIfSection(condition, block);
					elseIfSection.StartLocation = elseIfStart;
					elseIfSection.EndLocation = t.Location;
					elseIfSection.Parent = ifStatement;
					ifStatement.ElseIfSections.Add(elseIfSection);
					
				}
				if (la.kind == 111) {
					lexer.NextToken();
					if (la.kind == 1 || la.kind == 21) {
						EndOfStmt();
					}
					Block(
//#line  3271 "VBNET.ATG" 
out embeddedStatement);

//#line  3273 "VBNET.ATG" 
					ifStatement.FalseStatement.Add(embeddedStatement);
					
				}
				Expect(113);
				Expect(135);

//#line  3277 "VBNET.ATG" 
				ifStatement.EndLocation = t.Location;
				statement = ifStatement;
				
			} else if (StartOf(45)) {

//#line  3282 "VBNET.ATG" 
				IfElseStatement ifStatement = new IfElseStatement(expr);
				ifStatement.StartLocation = ifStartLocation;
				
				SingleLineStatementList(
//#line  3285 "VBNET.ATG" 
ifStatement.TrueStatement);
				if (la.kind == 111) {
					lexer.NextToken();
					if (StartOf(45)) {
						SingleLineStatementList(
//#line  3288 "VBNET.ATG" 
ifStatement.FalseStatement);
					}
				}

//#line  3290 "VBNET.ATG" 
				ifStatement.EndLocation = t.Location; statement = ifStatement; 
			} else SynErr(301);
		} else if (la.kind == 197) {
			lexer.NextToken();
			if (la.kind == 74) {
				lexer.NextToken();
			}
			Expr(
//#line  3293 "VBNET.ATG" 
out expr);
			EndOfStmt();

//#line  3294 "VBNET.ATG" 
			List<SwitchSection> selectSections = new List<SwitchSection>();
			Statement block = null;
			
			while (la.kind == 74) {

//#line  3298 "VBNET.ATG" 
				List<CaseLabel> caseClauses = null; Location caseLocation = la.Location; 
				lexer.NextToken();
				CaseClauses(
//#line  3299 "VBNET.ATG" 
out caseClauses);
				if (
//#line  3299 "VBNET.ATG" 
IsNotStatementSeparator()) {
					lexer.NextToken();
				}
				EndOfStmt();

//#line  3301 "VBNET.ATG" 
				SwitchSection selectSection = new SwitchSection(caseClauses);
				selectSection.StartLocation = caseLocation;
				
				Block(
//#line  3304 "VBNET.ATG" 
out block);

//#line  3306 "VBNET.ATG" 
				selectSection.Children = block.Children;
				selectSection.EndLocation = t.EndLocation;
				selectSections.Add(selectSection);
				
			}

//#line  3312 "VBNET.ATG" 
			statement = new SwitchStatement(expr, selectSections);
			
			Expect(113);
			Expect(197);
		} else if (la.kind == 171) {

//#line  3315 "VBNET.ATG" 
			OnErrorStatement onErrorStatement = null; 
			OnErrorStatement(
//#line  3316 "VBNET.ATG" 
out onErrorStatement);

//#line  3316 "VBNET.ATG" 
			statement = onErrorStatement; 
		} else if (la.kind == 132) {

//#line  3317 "VBNET.ATG" 
			GotoStatement goToStatement = null; 
			GotoStatement(
//#line  3318 "VBNET.ATG" 
out goToStatement);

//#line  3318 "VBNET.ATG" 
			statement = goToStatement; 
		} else if (la.kind == 194) {

//#line  3319 "VBNET.ATG" 
			ResumeStatement resumeStatement = null; 
			ResumeStatement(
//#line  3320 "VBNET.ATG" 
out resumeStatement);

//#line  3320 "VBNET.ATG" 
			statement = resumeStatement; 
		} else if (StartOf(44)) {

//#line  3323 "VBNET.ATG" 
			Expression val = null;
			AssignmentOperatorType op;
			Location startLoc = la.Location;
			
			bool mustBeAssignment = la.kind == Tokens.Plus  || la.kind == Tokens.Minus ||
			                        la.kind == Tokens.Not   || la.kind == Tokens.Times;
			
			SimpleExpr(
//#line  3330 "VBNET.ATG" 
out expr);
			if (StartOf(46)) {
				AssignmentOperator(
//#line  3332 "VBNET.ATG" 
out op);
				Expr(
//#line  3332 "VBNET.ATG" 
out val);

//#line  3334 "VBNET.ATG" 
				expr = new AssignmentExpression(expr, op, val);
				expr.StartLocation = startLoc;
				expr.EndLocation = t.EndLocation;
				
			} else if (StartOf(47)) {

//#line  3338 "VBNET.ATG" 
				if (mustBeAssignment) Error("error in assignment."); 
			} else SynErr(302);

//#line  3341 "VBNET.ATG" 
			// a field reference expression that stands alone is a
			// invocation expression without parantheses and arguments
			if(expr is MemberReferenceExpression || expr is IdentifierExpression) {
				Location endLocation = expr.EndLocation;
				expr = new InvocationExpression(expr);
				expr.StartLocation = startLoc;
				expr.EndLocation = endLocation;
			}
			statement = new ExpressionStatement(expr);
			
		} else if (la.kind == 73) {
			lexer.NextToken();
			SimpleExpr(
//#line  3351 "VBNET.ATG" 
out expr);

//#line  3351 "VBNET.ATG" 
			statement = new ExpressionStatement(expr); 
		} else if (la.kind == 226) {
			lexer.NextToken();

//#line  3353 "VBNET.ATG" 
			Statement block;  
			if (
//#line  3354 "VBNET.ATG" 
Peek(1).kind == Tokens.As) {

//#line  3355 "VBNET.ATG" 
				LocalVariableDeclaration resourceAquisition = new LocalVariableDeclaration(Modifiers.None); 
				VariableDeclarator(
//#line  3356 "VBNET.ATG" 
resourceAquisition.Variables);
				while (la.kind == 22) {
					lexer.NextToken();
					VariableDeclarator(
//#line  3358 "VBNET.ATG" 
resourceAquisition.Variables);
				}
				Block(
//#line  3360 "VBNET.ATG" 
out block);

//#line  3362 "VBNET.ATG" 
				statement = new UsingStatement(resourceAquisition, block);
				
			} else if (StartOf(24)) {
				Expr(
//#line  3364 "VBNET.ATG" 
out expr);
				Block(
//#line  3365 "VBNET.ATG" 
out block);

//#line  3366 "VBNET.ATG" 
				statement = new UsingStatement(new ExpressionStatement(expr), block); 
			} else SynErr(303);
			Expect(113);
			Expect(226);
		} else if (StartOf(48)) {
			LocalDeclarationStatement(
//#line  3369 "VBNET.ATG" 
out statement);
		} else SynErr(304);

//#line  3372 "VBNET.ATG" 
		if (statement != null) {
		statement.StartLocation = startLocation;
		statement.EndLocation = t.EndLocation;
		}
		
	}
		ArrayList MakeManualLoop(ForNextStatement forNextStatement)
		{
			Expression var = new IdentifierExpression(forNextStatement.VariableName);
			List<Statement> initializers = new List<Statement>(1);
			initializers.Add(new ExpressionStatement(new AssignmentExpression(var, AssignmentOperatorType.Assign, forNextStatement.Start)));
			List<Statement> iterators = new List<Statement>(1);
			Expression step = forNextStatement.Step;
			if (step == null || step.IsNull)
				step = new PrimitiveExpression(1, "1");
			iterators.Add(new ExpressionStatement(new AssignmentExpression(var, AssignmentOperatorType.Add, step)));
			PrimitiveExpression stepPE = step as PrimitiveExpression;
			if (stepPE == null || !(stepPE.Value is int)) {
				AddError(forNextStatement, "Step must be an integer literal");
				return null;
			}
			BinaryOperatorType conditionOperator;
			if ((int)stepPE.Value < 0) {
				conditionOperator = BinaryOperatorType.GreaterThanOrEqual;// counting down
			} else {
				conditionOperator = BinaryOperatorType.LessThanOrEqual;// counting up
			}
			Expression condition = new BinaryOperatorExpression(var, conditionOperator, forNextStatement.End);
			return MakeManualLoop(forNextStatement, initializers, B.StatementModifierType.Unless, condition, iterators, forNextStatement.EmbeddedStatement);
		}