2 // complete.cs: Expression that are used for completion suggestions.
5 // Miguel de Icaza (miguel@ximian.com)
6 // Marek Safar (marek.safar@gmail.com)
8 // Copyright 2001, 2002, 2003 Ximian, Inc.
9 // Copyright 2003-2009 Novell, Inc.
11 // Completion* classes derive from ExpressionStatement as this allows
12 // them to pass through the parser in many conditions that require
13 // statements even when the expression is incomplete (for example
14 // completing inside a lambda
17 using System.Collections.Generic;
18 using System.Reflection;
19 using System.Reflection.Emit;
21 using Mono.CSharp.Linq;
24 namespace Mono.CSharp {
27 // A common base class for Completing expressions, it
28 // is just a very simple ExpressionStatement
30 public abstract class CompletingExpression : ExpressionStatement
32 public static void AppendResults (List<string> results, string prefix, IEnumerable<string> names)
34 foreach (string name in names) {
35 if (name == null || prefix == null)
38 if (!name.StartsWith (prefix))
41 if (results.Contains (name))
45 results.Add (name.Substring (prefix.Length));
51 public override void EmitStatement (EmitContext ec)
56 public override void Emit (EmitContext ec)
61 public override Expression CreateExpressionTree (ResolveContext ec)
67 public class CompletionSimpleName : CompletingExpression {
70 public CompletionSimpleName (string prefix, Location l)
76 protected override Expression DoResolve (ResolveContext ec)
78 var results = new List<string> ();
80 AppendResults (results, Prefix, Evaluator.GetVarNames ());
81 AppendResults (results, Prefix, ec.CurrentMemberDefinition.Parent.NamespaceEntry.CompletionGetTypesStartingWith (Prefix));
82 AppendResults (results, Prefix, Evaluator.GetUsingList ());
84 throw new CompletionResult (Prefix, results.ToArray ());
87 protected override void CloneTo (CloneContext clonectx, Expression t)
93 public class CompletionMemberAccess : CompletingExpression {
98 public CompletionMemberAccess (Expression e, string partial_name, Location l)
102 this.partial_name = partial_name;
105 public CompletionMemberAccess (Expression e, string partial_name, TypeArguments targs, Location l)
109 this.partial_name = partial_name;
113 protected override Expression DoResolve (ResolveContext ec)
115 Expression expr_resolved = expr.Resolve (ec,
116 ResolveFlags.VariableOrValue | ResolveFlags.Type);
118 if (expr_resolved == null)
121 TypeSpec expr_type = expr_resolved.Type;
122 if (expr_type.IsPointer || expr_type == TypeManager.void_type || expr_type == TypeManager.null_type || expr_type == InternalType.AnonymousMethod) {
123 Unary.Error_OperatorCannotBeApplied (ec, loc, ".", expr_type);
128 if (!targs.Resolve (ec))
132 var results = new List<string> ();
133 if (expr_resolved is Namespace){
134 Namespace nexpr = expr_resolved as Namespace;
135 string namespaced_partial;
137 if (partial_name == null)
138 namespaced_partial = nexpr.Name;
140 namespaced_partial = nexpr.Name + "." + partial_name;
143 Console.WriteLine ("Workign with: namespaced partial {0}", namespaced_partial);
144 foreach (var x in ec.TypeContainer.NamespaceEntry.CompletionGetTypesStartingWith (ec.TypeContainer, namespaced_partial)){
145 Console.WriteLine (" {0}", x);
149 CompletionSimpleName.AppendResults (
152 ec.CurrentMemberDefinition.Parent.NamespaceEntry.CompletionGetTypesStartingWith (namespaced_partial));
154 var r = MemberCache.GetCompletitionMembers (expr_type, partial_name).Select (l => l.Name);
155 AppendResults (results, partial_name, r);
158 throw new CompletionResult (partial_name == null ? "" : partial_name, results.Distinct ().ToArray ());
161 protected override void CloneTo (CloneContext clonectx, Expression t)
163 CompletionMemberAccess target = (CompletionMemberAccess) t;
166 target.targs = targs.Clone ();
168 target.expr = expr.Clone (clonectx);
172 public class CompletionElementInitializer : CompletingExpression {
175 public CompletionElementInitializer (string partial_name, Location l)
177 this.partial_name = partial_name;
181 protected override Expression DoResolve (ResolveContext ec)
183 var members = MemberCache.GetCompletitionMembers (ec.CurrentInitializerVariable.Type, partial_name);
185 // TODO: Does this mean exact match only ?
186 // if (partial_name != null && results.Count > 0 && result [0] == "")
187 // throw new CompletionResult ("", new string [] { "=" });
189 var results = members.Where (l => (l.Kind & (MemberKind.Field | MemberKind.Property)) != 0).Select (l => l.Name).ToList ();
190 if (partial_name != null) {
191 var temp = new List<string> ();
192 AppendResults (temp, partial_name, results);
196 throw new CompletionResult (partial_name == null ? "" : partial_name, results.Distinct ().ToArray ());
199 protected override void CloneTo (CloneContext clonectx, Expression t)