//
// Copyright 2001, 2002, 2003 Ximian, Inc.
// Copyright 2003-2009 Novell, Inc.
+// Copyright 2011 Xamarin Inc
//
// Completion* classes derive from ExpressionStatement as this allows
// them to pass through the parser in many conditions that require
// statements even when the expression is incomplete (for example
// completing inside a lambda
//
+using System.Collections.Generic;
+using System.Linq;
+
namespace Mono.CSharp {
- using System;
- using System.Collections;
- using System.Reflection;
- using System.Reflection.Emit;
- using System.Text;
//
// A common base class for Completing expressions, it
// is just a very simple ExpressionStatement
//
- public abstract class CompletingExpression : ExpressionStatement {
- public override void EmitStatement (EmitContext ec)
+ public abstract class CompletingExpression : ExpressionStatement
+ {
+ public static void AppendResults (List<string> results, string prefix, IEnumerable<string> names)
{
- // Do nothing
+ foreach (string name in names) {
+ if (name == null)
+ continue;
+
+ if (prefix != null && !name.StartsWith (prefix))
+ continue;
+
+ if (results.Contains (name))
+ continue;
+
+ if (prefix != null)
+ results.Add (name.Substring (prefix.Length));
+ else
+ results.Add (name);
+ }
}
- public override void Emit (EmitContext ec)
+ public override bool ContainsEmitWithAwait ()
{
- // Do nothing
+ return false;
}
- public override Expression CreateExpressionTree (EmitContext ec)
+ public override Expression CreateExpressionTree (ResolveContext ec)
{
return null;
}
+
+ public override void EmitStatement (EmitContext ec)
+ {
+ // Do nothing
+ }
+
+ public override void Emit (EmitContext ec)
+ {
+ // Do nothing
+ }
}
public class CompletionSimpleName : CompletingExpression {
- string prefix;
+ public string Prefix;
public CompletionSimpleName (string prefix, Location l)
{
this.loc = l;
- this.prefix = prefix;
+ this.Prefix = prefix;
}
-
- public override Expression DoResolve (EmitContext ec)
+
+ protected override Expression DoResolve (ResolveContext ec)
{
- string [] names = Evaluator.GetVarNames ();
-
- ArrayList results = new ArrayList ();
- foreach (string name in names){
- if (!name.StartsWith (prefix))
- continue;
+ var results = new List<string> ();
- if (results.Contains (name))
- continue;
+ ec.CurrentMemberDefinition.GetCompletionStartingWith (Prefix, results);
- if (prefix != null)
- results.Add (name.Substring (prefix.Length));
- else
- results.Add (name);
- }
- throw new CompletionResult (prefix, (string []) results.ToArray (typeof (string)));
+ throw new CompletionResult (Prefix, results.Distinct ().Select (l => l.Substring (Prefix.Length)).ToArray ());
}
protected override void CloneTo (CloneContext clonectx, Expression t)
Expression expr;
string partial_name;
TypeArguments targs;
-
- static MemberFilter CollectingFilter = new MemberFilter (Match);
-
- static bool Match (MemberInfo m, object filter_criteria)
- {
- if (m is FieldInfo){
- if (((FieldInfo) m).IsSpecialName)
- return false;
-
- }
- if (m is MethodInfo){
- if (((MethodInfo) m).IsSpecialName)
- return false;
- }
-
- if (filter_criteria == null)
- return true;
-
- string n = (string) filter_criteria;
- if (m.Name.StartsWith (n))
- return true;
-
- return false;
- }
public CompletionMemberAccess (Expression e, string partial_name, Location l)
{
this.targs = targs;
}
- public override Expression DoResolve (EmitContext ec)
+ protected override Expression DoResolve (ResolveContext rc)
{
- SimpleName original = expr as SimpleName;
- Expression expr_resolved = expr.Resolve (ec,
- ResolveFlags.VariableOrValue | ResolveFlags.Type |
- ResolveFlags.Intermediate | ResolveFlags.DisableStructFlowAnalysis);
+ var sn = expr as SimpleName;
+ const ResolveFlags flags = ResolveFlags.VariableOrValue | ResolveFlags.Type;
+
+ //
+ // Resolve the expression with flow analysis turned off, we'll do the definite
+ // assignment checks later. This is because we don't know yet what the expression
+ // will resolve to - it may resolve to a FieldExpr and in this case we must do the
+ // definite assignment check on the actual field and not on the whole struct.
+ //
+ using (rc.Set (ResolveContext.Options.OmitStructFlowAnalysis)) {
+ if (sn != null) {
+ expr = sn.LookupNameExpression (rc, MemberLookupRestrictions.ReadAccess | MemberLookupRestrictions.ExactArity);
+
+ //
+ // Resolve expression which does have type set as we need expression type
+ // with disable flow analysis as we don't know whether left side expression
+ // is used as variable or type
+ //
+ if (expr is VariableReference || expr is ConstantExpr || expr is Linq.TransparentMemberAccess) {
+ using (rc.With (ResolveContext.Options.DoFlowAnalysis, false)) {
+ expr = expr.Resolve (rc);
+ }
+ } else if (expr is TypeParameterExpr) {
+ expr.Error_UnexpectedKind (rc, flags, sn.Location);
+ expr = null;
+ }
+ } else {
+ expr = expr.Resolve (rc, flags);
+ }
+ }
- if (expr_resolved == null)
+ if (expr == null)
return null;
- Type expr_type = expr_resolved.Type;
- if (expr_type.IsPointer || expr_type == TypeManager.void_type || expr_type == TypeManager.null_type || expr_type == TypeManager.anonymous_method_type) {
- Unary.Error_OperatorCannotBeApplied (loc, ".", expr_type);
+ TypeSpec expr_type = expr.Type;
+ if (expr_type.IsPointer || expr_type.Kind == MemberKind.Void || expr_type == InternalType.NullLiteral || expr_type == InternalType.AnonymousMethod) {
+ expr.Error_OperatorCannotBeApplied (rc, loc, ".", expr_type);
return null;
}
if (targs != null) {
- if (!targs.Resolve (ec))
+ if (!targs.Resolve (rc))
return null;
}
- ArrayList results = new ArrayList ();
- MemberInfo [] result = expr_type.FindMembers (MemberTypes.All, BindingFlags.Instance | BindingFlags.Static | BindingFlags.Public, CollectingFilter, partial_name);
- foreach (MemberInfo r in result){
- string name;
+ var results = new List<string> ();
+ if (expr is Namespace) {
+ Namespace nexpr = expr as Namespace;
+ string namespaced_partial;
- MethodBase rasb = r as MethodBase;
- if (rasb != null && rasb.IsSpecialName)
- continue;
-
if (partial_name == null)
- name = r.Name;
- else {
- name = r.Name.Substring (partial_name.Length);
- }
-
- if (results.Contains (name))
- continue;
- results.Add (name);
+ namespaced_partial = nexpr.Name;
+ else
+ namespaced_partial = nexpr.Name + "." + partial_name;
+
+ rc.CurrentMemberDefinition.GetCompletionStartingWith (namespaced_partial, results);
+ if (partial_name != null)
+ results = results.Select (l => l.Substring (partial_name.Length)).ToList ();
+ } else {
+ var r = MemberCache.GetCompletitionMembers (rc, expr_type, partial_name).Select (l => l.Name);
+ AppendResults (results, partial_name, r);
}
- throw new CompletionResult (partial_name == null ? "" : partial_name, (string []) results.ToArray (typeof (string)));
+ throw new CompletionResult (partial_name == null ? "" : partial_name, results.Distinct ().ToArray ());
}
protected override void CloneTo (CloneContext clonectx, Expression t)
target.expr = expr.Clone (clonectx);
}
}
-}
\ No newline at end of file
+
+ public class CompletionElementInitializer : CompletingExpression {
+ string partial_name;
+
+ public CompletionElementInitializer (string partial_name, Location l)
+ {
+ this.partial_name = partial_name;
+ this.loc = l;
+ }
+
+ protected override Expression DoResolve (ResolveContext ec)
+ {
+ var members = MemberCache.GetCompletitionMembers (ec, ec.CurrentInitializerVariable.Type, partial_name);
+
+// TODO: Does this mean exact match only ?
+// if (partial_name != null && results.Count > 0 && result [0] == "")
+// throw new CompletionResult ("", new string [] { "=" });
+
+ var results = members.Where (l => (l.Kind & (MemberKind.Field | MemberKind.Property)) != 0).Select (l => l.Name).ToList ();
+ if (partial_name != null) {
+ var temp = new List<string> ();
+ AppendResults (temp, partial_name, results);
+ results = temp;
+ }
+
+ throw new CompletionResult (partial_name == null ? "" : partial_name, results.Distinct ().ToArray ());
+ }
+
+ protected override void CloneTo (CloneContext clonectx, Expression t)
+ {
+ // Nothing
+ }
+ }
+
+}
projects / mono.git / blobdiff