public void Visit(ArrayLiteralNode arrayLiteral)
{
foreach (var element in arrayLiteral.Elements)
{
element.Parent = arrayLiteral;
element.Accept(this);
}
}
public override object VisitArrayLiteral(ArrayLiteralNode node)
{
object[] result = new object[node.Elements.Count];
for (int i = 0; i < result.Length; i++)
{
result[i] = node.Elements[i].Accept(this);
}
return(result);
}
/// <summary>
/// Visits the Array Literal node.
/// </summary>
/// <param name="node">The node to visit.</param>
public virtual TResult VisitArrayLiteral(ArrayLiteralNode node)
{
foreach (LiteralNode item in node.Elements)
{
item.Accept(this);
}
return(default(TResult)); // The default naive implementation
}
private object EvaluateNode(ArrayLiteralNode expression, Context context)
{
var result = new List <object>();
foreach (var exp in expression.values)
{
result.Add(EvaluateNode(exp, context));
}
return(result);
}
/// <summary>
/// Visits the Array Literal node.
/// </summary>
/// <param name="node">The node to visit.</param>
public override bool VisitArrayLiteral(ArrayLiteralNode node)
{
if (node.Parent == null)
{
return(false);
}
if ((node.ArrayToken == null) || (node.LeftParenthesis == null) || (node.RightParenthesis == null))
{
return(false);
}
foreach (LiteralNode item in node.Elements)
{
if (!item.Accept(this))
{
return(false);
}
}
return(true);
}
/// <summary>
/// Visits the Array Literal node.
/// </summary>
/// <param name="node">The node to visit.</param>
public virtual TResult VisitArrayLiteral(ArrayLiteralNode node)
{
throw new NotImplementedException();
}
public override Expression VisitArrayLiteral(ArrayLiteralNode node)
{
return(this.Context.Compiler.LiteralEncodingStrategy.Array(this, node.Elements));
}
protected virtual ArrayLiteralNode ParseArrayLiteral(ILiteralNodeParent parent, SpecialCharacterToken arrayToken)
{
// PARSE: <array literal> ::= '#(' <array element>* ')'
// <array element> ::= <literal> | identifier
Token token = this.GetNextTokenxx(Preference.Default);
if (!Parser.IsOpeningParenthesis(token))
{
this.ReportParserError(parent, SemanticErrors.MissingLiteralArrayOpeningParenthesis, token);
// The hash token is thrown away and lost :-/ ... only the current token is passed on.
this.ResidueToken = token;
return(null);
}
List <LiteralNode> elements = new List <LiteralNode>();
ArrayLiteralNode result = new ArrayLiteralNode(parent, arrayToken, (SpecialCharacterToken)token);
// Process tokens inside the array ...
while (true)
{
// ... get next token in the array ...
token = this.GetNextTokenxx(Preference.NegativeSign | Preference.UnquotedSelector);
// Is this closing parenthesis?
if (Parser.IsClosingParenthesis(token))
{
// Closing parenthesis ... done with the array, return litral array node.
result.SetContents(elements, (SpecialCharacterToken)token);
this.ResidueToken = null;
return(result);
}
if (token is EofToken)
{
// Unfinished source code ... return
result.SetContents(elements, null);
this.ReportParserError(parent, SemanticErrors.MissingLiteralArrayClosingParenthesis, token);
this.ResidueToken = token;
return(result);
}
// PARSE: <array element> ::= <literal> | identifier
if (token is ILiteralArrayIdentifierToken)
{
// identifier ... special case only inside arrays.
elements.Add(new IdentifierLiteralNode(result, (ILiteralArrayIdentifierToken)token));
}
else
{
// ... it's not identifier, so it must be an literal
LiteralNode element = this.ParseLiteral(result, token);
if (element == null)
{
// Report error in source code ... here, it must be a literal
this.ReportParserError(result, SemanticErrors.UnrecognizedLiteral, token);
result.SetContents(elements, null);
return(result);
}
else
{
// ... add the child element to the array elements.
elements.Add(element);
}
}
}
}
internal override void Visit(ArrayLiteralNode node)
{
}