public override string ToCode(ToCodeFormat format)
{
StringBuilder sb = new StringBuilder();
sb.Append('[');
if (m_elements != null)
{
sb.Append(m_elements.ToCode(ToCodeFormat.Commas));
}
sb.Append(']');
return(sb.ToString());
}
public override string ToCode(ToCodeFormat format)
{
StringBuilder sb = new StringBuilder();
// switch and value
sb.Append("switch(");
sb.Append(m_expression.ToCode());
sb.Append(')');
// opening brace
Parser.Settings.NewLine(sb);
sb.Append('{');
// cases
sb.Append(m_cases.ToCode(ToCodeFormat.Semicolons));
// closing brace
Parser.Settings.NewLine(sb);
sb.Append('}');
return sb.ToString();
}
public override string ToCode(ToCodeFormat format)
{
StringBuilder sb = new StringBuilder();
// we will only add a space if we KNOW we might need one
bool needsSpace = false;
// normal processing...
if (m_isConstructor)
{
sb.Append("new");
// the new operator might need to be followed by a space, depending
// on what will actually follow
needsSpace = true;
}
// list of items that DON'T need parens.
// lookup, call or member don't need parens. All other items
// are lower-precedence and therefore need to be wrapped in
// parentheses to keep the right order.
// function objects take care of their own parentheses.
CallNode funcCall = m_func as CallNode;
bool encloseInParens = !(
(m_func is Lookup) ||
(m_func is Member) ||
(funcCall != null) ||
(m_func is ThisLiteral) ||
(m_func is FunctionObject)
);
// because if the new-operator associates to the right and the ()-operator associates
// to the left, we need to be careful that we don't change the precedence order when the
// function of a new operator is itself a call. In that case, the call will have it's own
// parameters (and therefore parentheses) that will need to be associated with the call
// and NOT the new -- the call will need to be surrounded with parens to keep that association.
if (m_isConstructor && funcCall != null && !funcCall.InBrackets)
{
encloseInParens = true;
}
// if the root is a constructor with no arguments, we'll need to wrap it in parens so the
// member-dot comes out with the right precedence.
// (don't bother checking if we already are already going to use parens)
if (!encloseInParens && funcCall != null && funcCall.IsConstructor &&
(funcCall.Arguments == null || funcCall.Arguments.Count == 0))
{
encloseInParens = true;
}
if (encloseInParens)
{
// we're adding a parenthesis, so no -- we won't need to
// add a space
needsSpace = false;
sb.Append('(');
}
string functionString = m_func.ToCode();
// if we still think we might need a space, check the function we just
// formatted. If it starts with an identifier part, then we need the space.
if (needsSpace && JSScanner.StartsWithIdentifierPart(functionString))
{
sb.Append(' ');
}
sb.Append(functionString);
if (encloseInParens)
{
sb.Append(')');
}
// if this isn't a constructor, or if it is and there are parameters,
// then we want to output the parameters. But if this is a constructor with
// no parameters, we can skip the whole empty-argument-parens thing altogether.
if (!m_isConstructor || (m_args != null && m_args.Count > 0))
{
sb.Append((m_inBrackets ? '[' : '('));
if (m_args != null)
{
sb.Append(m_args.ToCode(ToCodeFormat.Commas));
}
sb.Append((m_inBrackets ? ']' : ')'));
}
return(sb.ToString());
}
