public static BoundExpressionStatement Decrement(SyntaxNode syntax, BoundVariableExpression varExpr)
{
var incrByOne = Sub(syntax, varExpr, Literal(syntax, 1));
var incrAssign = new BoundAssignmentExpression(syntax, varExpr.Variable, incrByOne);
return(new BoundExpressionStatement(syntax, incrAssign));
}
private static void WriteAssignmentExpression(BoundAssignmentExpression node, IndentedTextWriter writer)
{
writer.WriteIdentifier(node.Variable.Name);
writer.WriteSpace();
writer.WritePunctuation(SyntaxKind.EqToken);
writer.WriteSpace();
node.Expression.WriteTo(writer);
}
protected virtual BoundExpression RewriteAssignmentExpression(BoundAssignmentExpression node)
{
var expression = this.RewriteExpression(node.Expression);
if (expression == node.Expression)
{
return(node);
}
return(new BoundAssignmentExpression(node.Syntax, node.Variable, expression));
}
