public override string ToCode(ToCodeFormat format)
{
StringBuilder sb = new StringBuilder();
sb.Append("throw");
string exprString = (
m_operand == null
? string.Empty
: m_operand.ToCode()
);
if (exprString.Length > 0)
{
if (JSScanner.StartsWithIdentifierPart(exprString))
{
sb.Append(' ');
}
sb.Append(exprString);
}
if (Parser.Settings.MacSafariQuirks)
{
sb.Append(';');
}
return(sb.ToString());
}
public override string ToCode(ToCodeFormat format)
{
StringBuilder sb = new StringBuilder();
sb.Append("for(");
string var = m_var.ToCode();
sb.Append(var);
if (JSScanner.EndsWithIdentifierPart(var))
{
sb.Append(' ');
}
sb.Append("in");
string collection = m_collection.ToCode();
if (JSScanner.StartsWithIdentifierPart(collection))
{
sb.Append(' ');
}
sb.Append(m_collection.ToCode());
sb.Append(')');
string bodyString = (
m_body == null
? string.Empty
: m_body.ToCode()
);
sb.Append(bodyString);
return(sb.ToString());
}
public override string ToCode(ToCodeFormat format)
{
StringBuilder sb = new StringBuilder();
sb.Append("do");
ToCodeFormat bodyFormat = ((Body != null &&
Body.Count == 1 &&
Body[0].GetType() == typeof(DoWhile))
? ToCodeFormat.AlwaysBraces
: ToCodeFormat.Normal
);
// if the body is a single statement that ends in a do-while, then we
// will need to wrap the body in curly-braces to get around an IE bug
if (Body != null && Body.EncloseBlock(EncloseBlockType.SingleDoWhile))
{
bodyFormat = ToCodeFormat.AlwaysBraces;
}
string bodyString = (
Body == null
? string.Empty
: Body.ToCode(bodyFormat)
);
if (bodyString.Length == 0)
{
sb.Append(';');
}
else
{
// if the first character could be interpreted as a continuation
// of the "do" keyword, then we need to add a space
if (JSScanner.StartsWithIdentifierPart(bodyString))
{
sb.Append(' ');
}
sb.Append(bodyString);
// if there is no body, we need a semi-colon
// OR if we didn't always wrap in braces AND we require a separator, we need a semi-colon.
// and make sure it doesn't already end in a semicolon -- we don't want two in a row.
if (Body == null ||
(bodyFormat != ToCodeFormat.AlwaysBraces && Body.RequiresSeparator && !bodyString.EndsWith(";", StringComparison.Ordinal)))
{
sb.Append(';');
}
}
// add a space for readability for pretty-print mode
if (Parser.Settings.OutputMode == OutputMode.MultipleLines && Parser.Settings.IndentSize > 0)
{
sb.Append(' ');
}
sb.Append("while(");
sb.Append(Condition.ToCode());
sb.Append(")");
return(sb.ToString());
}
public override string ToCode(ToCodeFormat format)
{
StringBuilder sb = new StringBuilder();
sb.Append("return");
if (m_operand != null)
{
string operandText = m_operand.ToCode();
if (operandText.Length > 0 && JSScanner.StartsWithIdentifierPart(operandText))
{
sb.Append(' ');
}
sb.Append(operandText);
}
return(sb.ToString());
}
public override string ToCode(ToCodeFormat format)
{
string operandString = Operand.ToCode(format);
if (NeedsParentheses)
{
// need parentheses
return("typeof(" + operandString + ')');
}
else if (JSScanner.StartsWithIdentifierPart(operandString))
{
// need a space separating them
return("typeof " + operandString);
}
else
{
// don't need the space
return("typeof" + operandString);
}
}
public override string ToCode(ToCodeFormat format)
{
string operandString = Operand.ToCode(format);
if (NeedsParentheses)
{
// needs parens
return("delete(" + operandString + ')');
}
else if (JSScanner.StartsWithIdentifierPart(operandString))
{
// needs a space
return("delete " + operandString);
}
else
{
// needs no separator
return("delete" + operandString);
}
}
public override string ToCode(ToCodeFormat format)
{
StringBuilder sb = new StringBuilder();
// the label should be indented
Parser.Settings.Indent();
// start a new line
Parser.Settings.NewLine(sb);
if (m_caseValue != null)
{
sb.Append("case");
string caseValue = m_caseValue.ToCode();
if (JSScanner.StartsWithIdentifierPart(caseValue))
{
sb.Append(' ');
}
sb.Append(caseValue);
}
else
{
sb.Append("default");
}
sb.Append(':');
// in pretty-print mode, we indent the statements under the label, too
Parser.Settings.Indent();
// output the statements
if (m_statements != null && m_statements.Count > 0)
{
sb.Append(m_statements.ToCode(ToCodeFormat.NoBraces));
}
// if we are pretty-printing, we need to unindent twice:
// once for the label, and again for the statements
Parser.Settings.Unindent();
Parser.Settings.Unindent();
return(sb.ToString());
}
public override string ToCode(ToCodeFormat format)
{
StringBuilder sb = new StringBuilder();
sb.Append("if(");
sb.Append(Condition.ToCode());
sb.Append(')');
// if we're in Safari-quirks mode, we will need to wrap the if block
// in curly braces if it only includes a function declaration. Safari
// throws parsing errors in those situations
ToCodeFormat elseFormat = ToCodeFormat.Normal;
if (FalseBlock != null && FalseBlock.Count == 1)
{
if (Parser.Settings.MacSafariQuirks &&
FalseBlock[0] is FunctionObject)
{
elseFormat = ToCodeFormat.AlwaysBraces;
}
else if (FalseBlock[0] is IfNode)
{
elseFormat = ToCodeFormat.ElseIf;
}
}
// get the else block -- we need to know if there is anything in order
// to fully determine if the true-branch needs curly-braces
string elseBlock = (
FalseBlock == null
? string.Empty
: FalseBlock.ToCode(elseFormat));
// we'll need to force the true block to be enclosed in curly braces if
// there is an else block and the true block contains a single statement
// that ends in an if that doesn't have an else block
ToCodeFormat trueFormat = (FalseBlock != null &&
TrueBlock != null &&
TrueBlock.EncloseBlock(EncloseBlockType.IfWithoutElse)
? ToCodeFormat.AlwaysBraces
: ToCodeFormat.Normal);
if (elseBlock.Length > 0 &&
TrueBlock != null &&
TrueBlock.EncloseBlock(EncloseBlockType.SingleDoWhile))
{
trueFormat = ToCodeFormat.AlwaysBraces;
}
// if we're in Safari-quirks mode, we will need to wrap the if block
// in curly braces if it only includes a function declaration. Safari
// throws parsing errors in those situations
if (Parser.Settings.MacSafariQuirks &&
TrueBlock != null &&
TrueBlock.Count == 1 &&
TrueBlock[0] is FunctionObject)
{
trueFormat = ToCodeFormat.AlwaysBraces;
}
// add the true block
string trueBlock = (
TrueBlock == null
? string.Empty
: TrueBlock.ToCode(trueFormat));
sb.Append(trueBlock);
if (elseBlock.Length > 0)
{
if (trueFormat != ToCodeFormat.AlwaysBraces &&
!trueBlock.EndsWith(";", StringComparison.Ordinal) &&
(TrueBlock == null || TrueBlock.RequiresSeparator))
{
sb.Append(';');
}
// if we are in pretty-print mode, drop the else onto a new line
Parser.Settings.NewLine(sb);
sb.Append("else");
// if the first character could be interpreted as a continuation
// of the "else" statement, then we need to add a space
if (JSScanner.StartsWithIdentifierPart(elseBlock))
{
sb.Append(' ');
}
sb.Append(elseBlock);
}
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());
}
