public override object Visit(AssignmentExpression assignmentExpression, object data)
{
if (assignmentExpression.Op == AssignmentOperatorType.Add) {
methodReference = true;
CodeExpression methodInvoker = (CodeExpression)assignmentExpression.Right.AcceptVisitor(this, null);
methodReference = false;
if (assignmentExpression.Left is IdentifierExpression)
{
AddStmt(new CodeAttachEventStatement(new CodeEventReferenceExpression(new CodeThisReferenceExpression(), ((IdentifierExpression)assignmentExpression.Left).Identifier),
methodInvoker));
} else {
FieldReferenceExpression fr = (FieldReferenceExpression)assignmentExpression.Left;
AddStmt(new CodeAttachEventStatement(new CodeEventReferenceExpression((CodeExpression)fr.TargetObject.AcceptVisitor(this, data), fr.FieldName),
methodInvoker));
}
} else {
if (assignmentExpression.Left is IdentifierExpression) {
AddStmt(new CodeAssignStatement((CodeExpression)assignmentExpression.Left.AcceptVisitor(this, null), (CodeExpression)assignmentExpression.Right.AcceptVisitor(this, null)));
} else {
AddStmt(new CodeAssignStatement((CodeExpression)assignmentExpression.Left.AcceptVisitor(this, null), (CodeExpression)assignmentExpression.Right.AcceptVisitor(this, null)));
}
}
return null;
}
public override object Visit(AssignmentExpression assignmentExpression, object data)
{
Console.WriteLine(assignmentExpression.ToString());
return assignmentExpression.AcceptChildren(this, data);
}
public override object Visit(AssignmentExpression assignmentExpression, object data)
{
DebugOutput(assignmentExpression);
string op = null;
string left = assignmentExpression.Left.AcceptVisitor(this, data).ToString();
string right = assignmentExpression.Right.AcceptVisitor(this, data).ToString();
switch (assignmentExpression.Op) {
case AssignmentOperatorType.Assign:
op = " = ";
break;
case AssignmentOperatorType.Add:
op = " += ";
if (IsEventHandlerCreation(assignmentExpression.Right)) {
return String.Format("AddHandler {0}, AddressOf {1}",
left,
((Expression)((ObjectCreateExpression)assignmentExpression.Right).Parameters[0]).AcceptVisitor(this, data).ToString());
}
break;
case AssignmentOperatorType.Subtract:
op = " -= ";
if (IsEventHandlerCreation(assignmentExpression.Right)) {
return String.Format("RemoveHandler {0}, AddressOf {1}",
left,
((Expression)((ObjectCreateExpression)assignmentExpression.Right).Parameters[0]).AcceptVisitor(this, data).ToString());
}
break;
case AssignmentOperatorType.Multiply:
op = " *= ";
break;
case AssignmentOperatorType.Divide:
op = " /= ";
break;
case AssignmentOperatorType.ShiftLeft:
op = " <<= ";
break;
case AssignmentOperatorType.ShiftRight:
op = " >>= ";
break;
case AssignmentOperatorType.ExclusiveOr:
return String.Format("{0} = {0} Xor ({1})", left, right);
case AssignmentOperatorType.Modulus:
return String.Format("{0} = {0} Mod ({1})", left, right);
case AssignmentOperatorType.BitwiseAnd:
return String.Format("{0} = {0} And ({1})", left, right);
case AssignmentOperatorType.BitwiseOr:
return String.Format("{0} = {0} Or ({1})", left, right);
}
return String.Concat(left,
op,
right);
}
public override object Visit(AssignmentExpression assignmentExpression, object data)
{
return assignmentExpression.Left.AcceptVisitor(this, data);
}
public virtual object Visit(AssignmentExpression assignmentExpression, object data)
{
if (assignmentExpression.Left == null || assignmentExpression.Right == null) return null;
assignmentExpression.Left.AcceptVisitor(this, data);
return assignmentExpression.Right.AcceptVisitor(this, data);
}
void Expr(
#line 1767 "cs.ATG"
out Expression expr) {
#line 1768 "cs.ATG"
expr = null; Expression expr1 = null, expr2 = null;
UnaryExpr(
#line 1770 "cs.ATG"
out expr);
if (StartOf(5)) {
ConditionalOrExpr(
#line 1773 "cs.ATG"
ref expr);
if (la.kind == 11) {
lexer.NextToken();
Expr(
#line 1773 "cs.ATG"
out expr1);
Expect(9);
Expr(
#line 1773 "cs.ATG"
out expr2);
#line 1773 "cs.ATG"
expr = new ConditionalExpression(expr, expr1, expr2);
}
} else if (StartOf(6)) {
#line 1775 "cs.ATG"
AssignmentOperatorType op; Expression val;
AssignmentOperator(
#line 1775 "cs.ATG"
out op);
Expr(
#line 1775 "cs.ATG"
out val);
#line 1775 "cs.ATG"
expr = new AssignmentExpression(expr, op, val);
} else SynErr(128);
}
void StatementExpr(
#line 1748 "cs.ATG"
out Statement stmt) {
#line 1753 "cs.ATG"
bool mustBeAssignment = la.kind == Tokens.Plus || la.kind == Tokens.Minus ||
la.kind == Tokens.Not || la.kind == Tokens.BitwiseComplement ||
la.kind == Tokens.Times || la.kind == Tokens.BitwiseAnd || IsTypeCast();
Expression expr = null;
UnaryExpr(
#line 1759 "cs.ATG"
out expr);
if (StartOf(6)) {
#line 1762 "cs.ATG"
AssignmentOperatorType op; Expression val;
AssignmentOperator(
#line 1762 "cs.ATG"
out op);
Expr(
#line 1762 "cs.ATG"
out val);
#line 1762 "cs.ATG"
expr = new AssignmentExpression(expr, op, val);
} else if (la.kind == 10 || la.kind == 12 || la.kind == 19) {
#line 1763 "cs.ATG"
if (mustBeAssignment) Error("error in assignment.");
} else SynErr(172);
#line 1764 "cs.ATG"
stmt = new StatementExpression(expr);
}
public override object Visit(AssignmentExpression assignmentExpression, object data)
{
assignmentExpression.Left.AcceptVisitor(this, data);
outputFormatter.Space();
switch (assignmentExpression.Op) {
case AssignmentOperatorType.Assign:
outputFormatter.PrintToken(Tokens.Assign);
break;
case AssignmentOperatorType.Add:
outputFormatter.PrintToken(Tokens.PlusAssign);
break;
case AssignmentOperatorType.Subtract:
outputFormatter.PrintToken(Tokens.MinusAssign);
break;
case AssignmentOperatorType.Multiply:
outputFormatter.PrintToken(Tokens.TimesAssign);
break;
case AssignmentOperatorType.Divide:
outputFormatter.PrintToken(Tokens.DivAssign);
break;
case AssignmentOperatorType.ShiftLeft:
outputFormatter.PrintToken(Tokens.ShiftLeftAssign);
break;
case AssignmentOperatorType.ShiftRight:
outputFormatter.PrintToken(Tokens.ShiftRightAssign);
break;
case AssignmentOperatorType.ExclusiveOr:
outputFormatter.PrintToken(Tokens.XorAssign);
break;
case AssignmentOperatorType.Modulus:
outputFormatter.PrintToken(Tokens.ModAssign);
break;
case AssignmentOperatorType.BitwiseAnd:
outputFormatter.PrintToken(Tokens.BitwiseAndAssign);
break;
case AssignmentOperatorType.BitwiseOr:
outputFormatter.PrintToken(Tokens.BitwiseOrAssign);
break;
}
outputFormatter.Space();
assignmentExpression.Right.AcceptVisitor(this, data);
return null;
}
