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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Rakudo.Metamodel;
using Rakudo.Metamodel.Representations;
namespace Rakudo.Runtime.MultiDispatch
/// <summary>
/// Finds all candidates that we may dispatch to.
/// </summary>
public static class LexicalCandidateFinder
/// <summary>
/// Locates all matching candidates between the two scopes.
/// </summary>
/// <param name="FromScope"></param>
/// <param name="ToScope"></param>
/// <param name="Name"></param>
/// <returns></returns>
public static List<RakudoCodeRef.Instance> FindCandidates(Context CallerScope, Context ProtoScope, string CandidateHolderName)
var Result = new List<RakudoCodeRef.Instance>();
Context CurScope = null;
// Get the next outer scope, or alternatively start off with the
// caller scope.
CurScope = CurScope == null ? CallerScope : CurScope.Outer;
if (CurScope == null)
// Any candidates here?
int Index;
if (CurScope.LexPad.SlotMapping != null && CurScope.LexPad.SlotMapping.TryGetValue(CandidateHolderName, out Index))
foreach (var Candidate in (CurScope.LexPad.Storage[Index] as P6list.Instance).Storage)
Result.Add(Candidate as RakudoCodeRef.Instance);
} while (CurScope != ProtoScope);
return Result;
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