public static BoundExpressionStatement Increment(SyntaxNode syntax, BoundVariableExpression variable)
{
var increment = Add(syntax, variable, Literal(syntax, 1));
var incrementAssign = new BoundAssignmentExpression(syntax, variable.Variable, increment);
return(new BoundExpressionStatement(syntax, incrementAssign));
}
public static BoundExpressionStatement Increment(BoundVariableExpression variable)
{
var increment = Add(variable, Literal(1));
var incrementAssign = new BoundAssignmentExpression(variable.Variable, increment);
return(new BoundExpressionStatement(incrementAssign));
}
private static void WriteAssignmentExpression(BoundAssignmentExpression node, IndentedTextWriter writer)
{
writer.WriteIdentifier(node.Variable.Name);
writer.WriteSpace();
writer.WritePunctuation(SyntaxKind.EqualsToken);
writer.WriteSpace();
node.Expression.WriteTo(writer);
}
protected virtual BoundExpression RewriteCompoundAssignmentExpression(BoundCompoundAssignmentExpression node)
{
var boundVariableExpression = new BoundVariableExpression(node.Variable);
var boundBinaryExpression = new BoundBinaryExpression(boundVariableExpression, node.Op, node.Expression);
var boundAssignmentExpression = new BoundAssignmentExpression(node.Variable, boundBinaryExpression);
return(RewriteAssignmentExpression(boundAssignmentExpression));
}
protected virtual BoundExpression RewriteAssignmentExpression(BoundAssignmentExpression node)
{
var expression = RewriteExpression(node.Expression);
if (expression == node.Expression)
return node;
return new BoundAssignmentExpression(node.Variable, expression);
}
protected virtual BoundExpression RewriteAssignmentExpression(BoundAssignmentExpression node)
{
var expression = RewriteExpression(node.Expression);
if (expression == node.Expression)
{
return(node);
}
return(new BoundAssignmentExpression(node.Syntax, node.Variable, expression));
}
private static void WriteAssignmentExpression(BoundAssignmentExpression node, IndentedTextWriter writer)
{
writer.WriteIdentifier(node.Variable.Name);
writer.WritePunctuation(" = ");
node.Expression.WriteTo(writer);
}