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| 1 | +------------------------------------------------------------------------------ |
| 2 | +-- Language Server Protocol -- |
| 3 | +-- -- |
| 4 | +-- Copyright (C) 2024, AdaCore -- |
| 5 | +-- -- |
| 6 | +-- This is free software; you can redistribute it and/or modify it under -- |
| 7 | +-- terms of the GNU General Public License as published by the Free Soft- -- |
| 8 | +-- ware Foundation; either version 3, or (at your option) any later ver- -- |
| 9 | +-- sion. This software is distributed in the hope that it will be useful, -- |
| 10 | +-- but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHAN- -- |
| 11 | +-- TABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public -- |
| 12 | +-- License for more details. You should have received a copy of the GNU -- |
| 13 | +-- General Public License distributed with this software; see file -- |
| 14 | +-- COPYING3. If not, go to http://www.gnu.org/licenses for a complete copy -- |
| 15 | +-- of the license. -- |
| 16 | +------------------------------------------------------------------------------ |
| 17 | + |
| 18 | +with Ada.Unchecked_Deallocation; |
| 19 | + |
| 20 | +with Libadalang.Analysis; |
| 21 | +with Libadalang.Common; |
| 22 | + |
| 23 | +with VSS.Strings; |
| 24 | + |
| 25 | +with LSP.Ada_Context_Sets; |
| 26 | +with LSP.Ada_File_Sets; |
| 27 | +with LSP.Ada_Request_Jobs; |
| 28 | +with LSP.Client_Message_Receivers; |
| 29 | +with LSP.Locations; |
| 30 | +with LSP.Server_Requests.Subtypes; |
| 31 | +with LSP.Structures; |
| 32 | +with LSP.Utils; |
| 33 | + |
| 34 | +package body LSP.Ada_Type_Hierarchy_Subtypes is |
| 35 | + |
| 36 | + subtype Reversible_Iterator is LSP.Ada_File_Sets.File_Sets |
| 37 | + .Set_Iterator_Interfaces.Reversible_Iterator'Class; |
| 38 | + |
| 39 | + type Iterator_Access is access Reversible_Iterator; |
| 40 | + |
| 41 | + procedure Free is new Ada.Unchecked_Deallocation |
| 42 | + (Reversible_Iterator, Iterator_Access); |
| 43 | + |
| 44 | + type Ada_References_Job |
| 45 | + (Parent : not null access constant Ada_Type_Hierarchy_Subtype_Handler) is |
| 46 | + limited new LSP.Ada_Request_Jobs.Ada_Request_Job |
| 47 | + (Priority => LSP.Server_Jobs.Low) with |
| 48 | + record |
| 49 | + Response : LSP.Structures.TypeHierarchyItem_Vector_Or_Null; |
| 50 | + Filter : LSP.Locations.File_Span_Sets.Set; |
| 51 | + Context : LSP.Ada_Context_Sets.Context_Access; |
| 52 | + Iterator : Iterator_Access; |
| 53 | + Cursor : LSP.Ada_File_Sets.File_Sets.Cursor; |
| 54 | + Decl : Libadalang.Analysis.Basic_Decl; |
| 55 | + end record; |
| 56 | + |
| 57 | + type Ada_References_Job_Access is access all Ada_References_Job; |
| 58 | + |
| 59 | + overriding procedure Execute_Ada_Request |
| 60 | + (Self : in out Ada_References_Job; |
| 61 | + Client : |
| 62 | + in out LSP.Client_Message_Receivers.Client_Message_Receiver'Class; |
| 63 | + Status : out LSP.Server_Jobs.Execution_Status); |
| 64 | + |
| 65 | + ---------------- |
| 66 | + -- Create_Job -- |
| 67 | + ---------------- |
| 68 | + |
| 69 | + overriding function Create_Job |
| 70 | + (Self : Ada_Type_Hierarchy_Subtype_Handler; |
| 71 | + Message : LSP.Server_Messages.Server_Message_Access) |
| 72 | + return LSP.Server_Jobs.Server_Job_Access |
| 73 | + is |
| 74 | + Value : LSP.Server_Requests.Subtypes.Request |
| 75 | + renames LSP.Server_Requests.Subtypes.Request |
| 76 | + (Message.all); |
| 77 | + |
| 78 | + Context : constant LSP.Ada_Context_Sets.Context_Access := |
| 79 | + Self.Context.Get_Best_Context (Value.Params.item.uri); |
| 80 | + |
| 81 | + Node : constant Libadalang.Analysis.Ada_Node := |
| 82 | + Self.Context.Get_Node_At |
| 83 | + (Context.all, |
| 84 | + (LSP.Structures.TextDocumentPositionParams' |
| 85 | + ((uri => Value.Params.item.uri), |
| 86 | + Value.Params.item.selectionRange.start))); |
| 87 | + -- We expect here an identifier in the type declaration |
| 88 | + |
| 89 | + Decl : constant Libadalang.Analysis.Basic_Decl := |
| 90 | + (if not Node.Is_Null |
| 91 | + and then Node.Kind in Libadalang.Common.Ada_Name |
| 92 | + and then Node.As_Name.P_Is_Defining |
| 93 | + then Node.As_Name.P_Enclosing_Defining_Name.P_Basic_Decl |
| 94 | + else Libadalang.Analysis.No_Basic_Decl); |
| 95 | + |
| 96 | + Result : constant Ada_References_Job_Access := |
| 97 | + new Ada_References_Job' |
| 98 | + (Parent => Self'Unchecked_Access, |
| 99 | + Request => LSP.Ada_Request_Jobs.Request_Access (Message), |
| 100 | + Context => Context, |
| 101 | + Iterator => new Reversible_Iterator'(Context.List_Files), |
| 102 | + Decl => Decl, |
| 103 | + others => <>); |
| 104 | + begin |
| 105 | + Result.Cursor := Result.Iterator.First; |
| 106 | + |
| 107 | + return LSP.Server_Jobs.Server_Job_Access (Result); |
| 108 | + end Create_Job; |
| 109 | + |
| 110 | + ------------------------- |
| 111 | + -- Execute_Ada_Request -- |
| 112 | + ------------------------- |
| 113 | + |
| 114 | + overriding procedure Execute_Ada_Request |
| 115 | + (Self : in out Ada_References_Job; |
| 116 | + Client : |
| 117 | + in out LSP.Client_Message_Receivers.Client_Message_Receiver'Class; |
| 118 | + Status : out LSP.Server_Jobs.Execution_Status) |
| 119 | + is |
| 120 | + |
| 121 | + Message : LSP.Server_Requests.Subtypes.Request |
| 122 | + renames LSP.Server_Requests.Subtypes.Request (Self.Message.all); |
| 123 | + |
| 124 | + Ignore : Boolean; |
| 125 | + Unit : Libadalang.Analysis.Analysis_Unit; |
| 126 | + Loc : LSP.Structures.Location; |
| 127 | + Item : LSP.Structures.TypeHierarchyItem; |
| 128 | + Name : Libadalang.Analysis.Defining_Name; |
| 129 | + begin |
| 130 | + if LSP.Ada_File_Sets.File_Sets.Has_Element (Self.Cursor) then |
| 131 | + Unit := Self.Context.Get_AU |
| 132 | + (LSP.Ada_File_Sets.File_Sets.Element (Self.Cursor)); |
| 133 | + |
| 134 | + for Part of Self.Decl.P_All_Parts |
| 135 | + when Part.Kind in Libadalang.Common.Ada_Base_Type_Decl |
| 136 | + loop |
| 137 | + for Tipe of Part.As_Base_Type_Decl.P_Find_Derived_Types |
| 138 | + (Root => Unit.Root, |
| 139 | + Origin => Self.Decl) |
| 140 | + loop |
| 141 | + Name := Tipe.P_Defining_Name.P_Canonical_Part; |
| 142 | + |
| 143 | + Loc := Self.Parent.Context.To_LSP_Location (Name.P_Basic_Decl); |
| 144 | + |
| 145 | + if not Self.Filter.Contains (Loc) then |
| 146 | + Item := |
| 147 | + (name => VSS.Strings.To_Virtual_String |
| 148 | + (Name.Text), |
| 149 | + kind => LSP.Utils.Get_Decl_Kind |
| 150 | + (Name.P_Basic_Decl), |
| 151 | + tags => <>, |
| 152 | + detail => LSP.Utils.Node_Location_Image |
| 153 | + (Name), |
| 154 | + uri => Loc.uri, |
| 155 | + a_range => Loc.a_range, |
| 156 | + selectionRange => Self.Parent.Context.To_LSP_Location |
| 157 | + (Name).a_range, |
| 158 | + data => <>); |
| 159 | + |
| 160 | + Self.Filter.Insert (Loc); |
| 161 | + Self.Response.Append (Item); |
| 162 | + end if; |
| 163 | + end loop; |
| 164 | + end loop; |
| 165 | + |
| 166 | + Self.Cursor := Self.Iterator.Next (Self.Cursor); |
| 167 | + Status := LSP.Server_Jobs.Continue; |
| 168 | + else |
| 169 | + Free (Self.Iterator); |
| 170 | + Client.On_Subtypes_Response (Message.Id, Self.Response); |
| 171 | + Status := LSP.Server_Jobs.Done; |
| 172 | + end if; |
| 173 | + end Execute_Ada_Request; |
| 174 | + |
| 175 | +end LSP.Ada_Type_Hierarchy_Subtypes; |
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