public AstLambda(PegAstNode node) : base(node) { CheckLabel(AstLabel.Lambda); CheckChildCount(node, 2); AstParam name = new AstParam(node.GetChild(0)); mIdentifiers.Add(name.ToString()); CatAstNode tmp = Create(node.GetChild(1)); // lambda nodes either contain quotes or other lambda nodes if (!(tmp is AstQuote)) { if (!(tmp is AstLambda)) { throw new Exception("expected lambda expression or quotation"); } AstLambda lambda = tmp as AstLambda; mIdentifiers.AddRange(lambda.mIdentifiers); // Take ownership of the terms from the child lambda expression mTerms = lambda.mTerms; } else { AstQuote q = tmp as AstQuote; // Take ownership of the terms from the quote mTerms = q.mTerms; } }
public AstLambda(PegAstNode node) : base(node) { CheckLabel(AstLabel.Lambda); CheckChildCount(node, 2); AstParam name = new AstParam(node.GetChild(0)); mIdentifiers.Add(name.ToString()); CatAstNode tmp = Create(node.GetChild(1)); // lambda nodes either contain quotes or other lambda nodes if (!(tmp is AstQuote)) { if (!(tmp is AstLambda)) throw new Exception("expected lambda expression or quotation"); AstLambda lambda = tmp as AstLambda; mIdentifiers.AddRange(lambda.mIdentifiers); // Take ownership of the terms from the child lambda expression mTerms = lambda.mTerms; } else { AstQuote q = tmp as AstQuote; // Take ownership of the terms from the quote mTerms = q.mTerms; } }