public LetNode(ITokenReader tokenReader, INodeReader nodeReader, string directiveName = null, Location location = null)
: base(directiveName, location)
{
var startLocation = tokenReader.CurrentLocation;
Token token = tokenReader.ReadToken();
if(token == null) {
throw new MissingDataException("Variable name", startLocation);
}
if(token.TokenType != TokenType.Identifier) {
throw new MissingDataException("Variable name", token.Location);
}
Variable = token.Value.ToString();
var shorthand = ReadShorthandNode(tokenReader);
if(shorthand != null) {
ChildrenNodes = new List<NodeBase> { shorthand };
} else {
ChildrenNodes = new List<NodeBase>(nodeReader.TakeWhile((node) => !IsEndDirective(node, DirectiveName)));
}
}
// TODO Clean up.
public IfNode(ITokenReader tokenReader, INodeReader nodeReader, string directiveName = null, Location location = null)
: base(directiveName, location)
{
Conditions = new List<ConditionSet>();
var condition = ExpressionRewriter.Rewrite(tokenReader);
var curConditionSet = new ConditionSet(condition);
Conditions.Add(curConditionSet);
var childrenNodes = nodeReader.TakeWhile((node) => !IsEndDirective(node, DirectiveName));
foreach(var node in childrenNodes) {
bool isConditional;
var newCondition = GetConditionFromNode(node, out isConditional);
if(isConditional) {
if(newCondition != null && curConditionSet.Condition == null) {
throw new BadDataException("Can't have an elseif node after an else node", node.Location);
}
curConditionSet = new ConditionSet(newCondition);
Conditions.Add(curConditionSet);
continue;
}
curConditionSet.ChildrenNodes.Add(node);
}
}
public EachNode(ITokenReader tokenReader, INodeReader nodeReader, string directiveName = null, Location location = null)
: base(directiveName, location)
{
var startLocation = tokenReader.CurrentLocation;
Token token = tokenReader.ReadToken();
if(token == null) {
throw new MissingDataException("Variable name", startLocation);
}
if(token.TokenType != TokenType.Identifier) {
throw new MissingDataException("Variable name", token.Location);
}
Variable = token.Value.ToString();
Values = ExpressionRewriter.Rewrite(tokenReader);
ChildrenNodes = new List<NodeBase>(nodeReader.TakeWhile((node) => {
var endDirective = node as EndDirectiveNode;
if(endDirective != null && endDirective.TargetDirectiveName == DirectiveName) {
return false;
}
return true;
}));
}
public ForNode(ITokenReader tokenReader, INodeReader nodeReader, string directiveName = null, Location location = null)
: this(directiveName, location)
{
var parameters = ExpressionRewriter.Rewrite(tokenReader);
if(!parameters.Token.IsSymbol(",")) {
throw new DataTypeException("Expected comma-separated list", this);
}
var children = parameters.ChildrenTokenNodes;
if(children.Count < 3 || children.Count > 4) {
throw new MissingDataException("#for directive requires 3 to 4 parameters", location);
}
if(children[0].Token.TokenType != TokenType.Identifier) {
throw new MissingDataException("Identifier", children[0].Location);
}
Variable = children[0].Token.ToString();
Start = children[1];
End = children[2];
Step = children.Count > 3 ? children[3] : null;
ChildrenNodes = new List<NodeBase>(nodeReader.TakeWhile((node) => !IsEndDirective(node, DirectiveName)));
}
public RepNode(ITokenReader tokenReader, INodeReader nodeReader, string directiveName = null, Location location = null)
: base(directiveName, location)
{
Value = ExpressionRewriter.Rewrite(tokenReader);
ChildrenNodes = new List<NodeBase>(nodeReader.TakeWhile((node) => !IsEndDirective(node, DirectiveName)));
}
public DefineNode(ITokenReader tokenReader, INodeReader nodeReader, string directiveName = null, Location location = null)
: this(directiveName, location)
{
var startLocation = tokenReader.CurrentLocation;
Token variable = tokenReader.ReadToken();
if(variable == null) {
throw new MissingDataException("Variable name", startLocation);
}
if(variable.TokenType != TokenType.Identifier) {
throw new MissingDataException("Variable name", variable.Location);
}
Variable = variable.ToString();
// TODO Extract method.
var functionParameters = new List<string>();
FunctionParameters = functionParameters;
Token token = tokenReader.ReadToken();
if(token != null && token.IsSymbol("(")) {
while(token != null && !token.IsSymbol(")")) {
token = tokenReader.ReadToken();
if(token.TokenType == TokenType.Identifier) {
functionParameters.Add(token.Value.ToString());
}
}
if(token == null) {
throw new MissingDataException("Closing parentheses");
}
token = null;
}
var shorthand = ReadShorthandNode(tokenReader, token);
if(shorthand != null) {
ChildrenNodes = new List<NodeBase> { shorthand };
} else {
ChildrenNodes = new List<NodeBase>(nodeReader.TakeWhile((node) => !IsEndDirective(node, DirectiveName)));
}
}