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------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- P R J . T R E E -- -- -- -- S p e c -- -- -- -- Copyright (C) 2001-2011, Free Software Foundation, Inc. -- -- -- -- GNAT is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- -- ware Foundation; either version 3, or (at your option) any later ver- -- -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- -- for more details. You should have received a copy of the GNU General -- -- Public License distributed with GNAT; see file COPYING3. If not, go to -- -- http://www.gnu.org/licenses for a complete copy of the license. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- This package defines the structure of the Project File tree with GNAT.Dynamic_HTables; with GNAT.Dynamic_Tables; with Table; with Prj.Attr; use Prj.Attr; with Prj.Env; with Prj.Ext; package Prj.Tree is ----------------- -- Environment -- ----------------- -- The following record contains the context in which projects are parsed -- and processed (finding importing project, resolving external values,..). type Environment is record External : Prj.Ext.External_References; -- External references are stored in this hash table (and manipulated -- through subprograms in prj-ext.ads). External references are -- project-tree specific so that one can load the same tree twice but -- have two views of it, for instance. Project_Path : aliased Prj.Env.Project_Search_Path; -- The project path is tree specific, since we might want to load -- simultaneously multiple projects, each with its own search path, in -- particular when using different compilers with different default -- search directories. Flags : Prj.Processing_Flags; -- Configure errors and warnings end record; procedure Initialize (Self : out Environment; Flags : Processing_Flags); -- Initialize a new environment procedure Initialize_And_Copy (Self : out Environment; Copy_From : Environment); -- Initialize a new environment, copying its values from Copy_From procedure Free (Self : in out Environment); -- Free the memory used by Self procedure Override_Flags (Self : in out Environment; Flags : Prj.Processing_Flags); -- Override the subprogram called in case there are parsing errors. This -- is needed in applications that do their own error handling, since the -- error handler is likely to be a local subprogram in this case (which -- can't be stored when the flags are created). ------------------- -- Project nodes -- ------------------- type Project_Node_Tree_Data; type Project_Node_Tree_Ref is access all Project_Node_Tree_Data; -- Type to designate a project node tree, so that several project node -- trees can coexist in memory. Project_Nodes_Initial : constant := 1_000; Project_Nodes_Increment : constant := 100; -- Allocation parameters for initializing and extending number -- of nodes in table Tree_Private_Part.Project_Nodes Project_Node_Low_Bound : constant := 0; Project_Node_High_Bound : constant := 099_999_999; -- Range of values for project node id's (in practice infinite) type Project_Node_Id is range Project_Node_Low_Bound .. Project_Node_High_Bound; -- The index of table Tree_Private_Part.Project_Nodes Empty_Node : constant Project_Node_Id := Project_Node_Low_Bound; -- Designates no node in table Project_Nodes First_Node_Id : constant Project_Node_Id := Project_Node_Low_Bound + 1; subtype Variable_Node_Id is Project_Node_Id; -- Used to designate a node whose expected kind is one of -- N_Typed_Variable_Declaration, N_Variable_Declaration or -- N_Variable_Reference. subtype Package_Declaration_Id is Project_Node_Id; -- Used to designate a node whose expected kind is N_Project_Declaration type Project_Node_Kind is (N_Project, N_With_Clause, N_Project_Declaration, N_Declarative_Item, N_Package_Declaration, N_String_Type_Declaration, N_Literal_String, N_Attribute_Declaration, N_Typed_Variable_Declaration, N_Variable_Declaration, N_Expression, N_Term, N_Literal_String_List, N_Variable_Reference, N_External_Value, N_Attribute_Reference, N_Case_Construction, N_Case_Item, N_Comment_Zones, N_Comment); -- Each node in the tree is of a Project_Node_Kind. For the signification -- of the fields in each node of Project_Node_Kind, look at package -- Tree_Private_Part. function Present (Node : Project_Node_Id) return Boolean; pragma Inline (Present); -- Return True if Node /= Empty_Node function No (Node : Project_Node_Id) return Boolean; pragma Inline (No); -- Return True if Node = Empty_Node procedure Initialize (Tree : Project_Node_Tree_Ref); -- Initialize the Project File tree: empty the Project_Nodes table -- and reset the Projects_Htable. function Default_Project_Node (In_Tree : Project_Node_Tree_Ref; Of_Kind : Project_Node_Kind; And_Expr_Kind : Variable_Kind := Undefined) return Project_Node_Id; -- Returns a Project_Node_Record with the specified Kind and Expr_Kind. All -- the other components have default nil values. -- To create a node for a project itself, see Create_Project below instead function Hash (N : Project_Node_Id) return Header_Num; -- Used for hash tables where the key is a Project_Node_Id function Imported_Or_Extended_Project_Of (Project : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; With_Name : Name_Id) return Project_Node_Id; -- Return the node of a project imported or extended by project Project and -- whose name is With_Name. Return Empty_Node if there is no such project. -------------- -- Comments -- -------------- type Comment_State is private; -- A type to store the values of several global variables related to -- comments. procedure Save (S : out Comment_State); -- Save in variable S the comment state. Called before scanning a new -- project file. procedure Restore_And_Free (S : in out Comment_State); -- Restore the comment state to a previously saved value. Called after -- scanning a project file. Frees the memory occupied by S procedure Reset_State; -- Set the comment state to its initial value. Called before scanning a -- new project file. function There_Are_Unkept_Comments return Boolean; -- Indicates that some of the comments in a project file could not be -- stored in the parse tree. procedure Set_Previous_Line_Node (To : Project_Node_Id); -- Indicate the node on the previous line. If there are comments -- immediately following this line, then they should be associated with -- this node. procedure Set_Previous_End_Node (To : Project_Node_Id); -- Indicate that on the previous line the "end" belongs to node To. -- If there are comments immediately following this "end" line, they -- should be associated with this node. procedure Set_End_Of_Line (To : Project_Node_Id); -- Indicate the node on the current line. If there is an end of line -- comment, then it should be associated with this node. procedure Set_Next_End_Node (To : Project_Node_Id); -- Put node To on the top of the end node stack. When an END line is found -- with this node on the top of the end node stack, the comments, if any, -- immediately preceding this "end" line will be associated with this node. procedure Remove_Next_End_Node; -- Remove the top of the end node stack ------------------------ -- Comment Processing -- ------------------------ type Comment_Data is record Value : Name_Id := No_Name; Follows_Empty_Line : Boolean := False; Is_Followed_By_Empty_Line : Boolean := False; end record; -- Component type for Comments Table below package Comments is new Table.Table (Table_Component_Type => Comment_Data, Table_Index_Type => Natural, Table_Low_Bound => 1, Table_Initial => 10, Table_Increment => 100, Table_Name => "Prj.Tree.Comments"); -- A table to store the comments that may be stored is the tree procedure Scan (In_Tree : Project_Node_Tree_Ref); -- Scan the tokens and accumulate comments type Comment_Location is (Before, After, Before_End, After_End, End_Of_Line); -- Used in call to Add_Comments below procedure Add_Comments (To : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; Where : Comment_Location); -- Add comments to this node ---------------------- -- Access Functions -- ---------------------- -- The following query functions are part of the abstract interface -- of the Project File tree. They provide access to fields of a project. -- The access functions should be called only with valid arguments. -- For each function the condition of validity is specified. If an access -- function is called with invalid arguments, then exception -- Assertion_Error is raised if assertions are enabled, otherwise the -- behaviour is not defined and may result in a crash. function Name_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Name_Id; pragma Inline (Name_Of); -- Valid for all non empty nodes. May return No_Name for nodes that have -- no names. function Kind_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Kind; pragma Inline (Kind_Of); -- Valid for all non empty nodes function Location_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Source_Ptr; pragma Inline (Location_Of); -- Valid for all non empty nodes function First_Comment_After (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; -- Valid only for N_Comment_Zones nodes function First_Comment_After_End (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; -- Valid only for N_Comment_Zones nodes function First_Comment_Before (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; -- Valid only for N_Comment_Zones nodes function First_Comment_Before_End (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; -- Valid only for N_Comment_Zones nodes function Next_Comment (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; -- Valid only for N_Comment nodes function End_Of_Line_Comment (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Name_Id; -- Valid only for non empty nodes function Follows_Empty_Line (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Boolean; -- Valid only for N_Comment nodes function Is_Followed_By_Empty_Line (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Boolean; -- Valid only for N_Comment nodes function Parent_Project_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Parent_Project_Of); -- Valid only for N_Project nodes function Project_File_Includes_Unkept_Comments (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Boolean; -- Valid only for N_Project nodes function Directory_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Path_Name_Type; pragma Inline (Directory_Of); -- Returns the directory that contains the project file. This always ends -- with a directory separator. Only valid for N_Project nodes. function Expression_Kind_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Variable_Kind; pragma Inline (Expression_Kind_Of); -- Only valid for N_Literal_String, N_Attribute_Declaration, -- N_Variable_Declaration, N_Typed_Variable_Declaration, N_Expression, -- N_Term, N_Variable_Reference, N_Attribute_Reference nodes or -- N_External_Value. function Is_Extending_All (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Boolean; pragma Inline (Is_Extending_All); -- Only valid for N_Project and N_With_Clause function Is_Not_Last_In_List (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Boolean; pragma Inline (Is_Not_Last_In_List); -- Only valid for N_With_Clause function First_Variable_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Variable_Node_Id; pragma Inline (First_Variable_Of); -- Only valid for N_Project or N_Package_Declaration nodes function First_Package_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Package_Declaration_Id; pragma Inline (First_Package_Of); -- Only valid for N_Project nodes function Package_Id_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Package_Node_Id; pragma Inline (Package_Id_Of); -- Only valid for N_Package_Declaration nodes function Path_Name_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Path_Name_Type; pragma Inline (Path_Name_Of); -- Only valid for N_Project and N_With_Clause nodes function String_Value_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Name_Id; pragma Inline (String_Value_Of); -- Only valid for N_With_Clause, N_Literal_String nodes or N_Comment. -- For a N_With_Clause created automatically for a virtual extending -- project, No_Name is returned. function Source_Index_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Int; pragma Inline (Source_Index_Of); -- Only valid for N_Literal_String and N_Attribute_Declaration nodes function First_With_Clause_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (First_With_Clause_Of); -- Only valid for N_Project nodes function Project_Declaration_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Project_Declaration_Of); -- Only valid for N_Project nodes function Project_Qualifier_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Qualifier; pragma Inline (Project_Qualifier_Of); -- Only valid for N_Project nodes function Extending_Project_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Extending_Project_Of); -- Only valid for N_Project_Declaration nodes function First_String_Type_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (First_String_Type_Of); -- Only valid for N_Project nodes function Extended_Project_Path_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Path_Name_Type; pragma Inline (Extended_Project_Path_Of); -- Only valid for N_With_Clause nodes function Project_Node_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Project_Node_Of); -- Only valid for N_With_Clause, N_Variable_Reference and -- N_Attribute_Reference nodes. function Non_Limited_Project_Node_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Non_Limited_Project_Node_Of); -- Only valid for N_With_Clause nodes. Returns Empty_Node for limited -- imported project files, otherwise returns the same result as -- Project_Node_Of. function Next_With_Clause_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Next_With_Clause_Of); -- Only valid for N_With_Clause nodes function First_Declarative_Item_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (First_Declarative_Item_Of); -- Only valid for N_Project_Declaration, N_Case_Item and -- N_Package_Declaration. function Extended_Project_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Extended_Project_Of); -- Only valid for N_Project_Declaration nodes function Current_Item_Node (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Current_Item_Node); -- Only valid for N_Declarative_Item nodes function Next_Declarative_Item (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Next_Declarative_Item); -- Only valid for N_Declarative_Item node function Project_Of_Renamed_Package_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Project_Of_Renamed_Package_Of); -- Only valid for N_Package_Declaration nodes. May return Empty_Node. function Next_Package_In_Project (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Next_Package_In_Project); -- Only valid for N_Package_Declaration nodes function First_Literal_String (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (First_Literal_String); -- Only valid for N_String_Type_Declaration nodes function Next_String_Type (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Next_String_Type); -- Only valid for N_String_Type_Declaration nodes function Next_Literal_String (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Next_Literal_String); -- Only valid for N_Literal_String nodes function Expression_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Expression_Of); -- Only valid for N_Attribute_Declaration, N_Typed_Variable_Declaration -- or N_Variable_Declaration nodes function Associative_Project_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Associative_Project_Of); -- Only valid for N_Attribute_Declaration nodes function Associative_Package_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Associative_Package_Of); -- Only valid for N_Attribute_Declaration nodes function Value_Is_Valid (For_Typed_Variable : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; Value : Name_Id) return Boolean; pragma Inline (Value_Is_Valid); -- Only valid for N_Typed_Variable_Declaration. Returns True if Value is -- in the list of allowed strings for For_Typed_Variable. False otherwise. function Associative_Array_Index_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Name_Id; pragma Inline (Associative_Array_Index_Of); -- Only valid for N_Attribute_Declaration and N_Attribute_Reference. -- Returns No_Name for non associative array attributes. function Next_Variable (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Next_Variable); -- Only valid for N_Typed_Variable_Declaration or N_Variable_Declaration -- nodes. function First_Term (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (First_Term); -- Only valid for N_Expression nodes function Next_Expression_In_List (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Next_Expression_In_List); -- Only valid for N_Expression nodes function Current_Term (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Current_Term); -- Only valid for N_Term nodes function Next_Term (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Next_Term); -- Only valid for N_Term nodes function First_Expression_In_List (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (First_Expression_In_List); -- Only valid for N_Literal_String_List nodes function Package_Node_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Package_Node_Of); -- Only valid for N_Variable_Reference or N_Attribute_Reference nodes. -- May return Empty_Node. function String_Type_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (String_Type_Of); -- Only valid for N_Variable_Reference or N_Typed_Variable_Declaration -- nodes. function External_Reference_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (External_Reference_Of); -- Only valid for N_External_Value nodes function External_Default_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (External_Default_Of); -- Only valid for N_External_Value nodes function Case_Variable_Reference_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Case_Variable_Reference_Of); -- Only valid for N_Case_Construction nodes function First_Case_Item_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (First_Case_Item_Of); -- Only valid for N_Case_Construction nodes function First_Choice_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (First_Choice_Of); -- Only valid for N_Case_Item nodes. Return the first choice in a -- N_Case_Item, or Empty_Node if this is when others. function Next_Case_Item (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Project_Node_Id; pragma Inline (Next_Case_Item); -- Only valid for N_Case_Item nodes function Case_Insensitive (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref) return Boolean; -- Only valid for N_Attribute_Declaration and N_Attribute_Reference nodes ----------------------- -- Create procedures -- ----------------------- -- The following procedures are used to edit a project file tree. They are -- slightly higher-level than the Set_* procedures below function Create_Project (In_Tree : Project_Node_Tree_Ref; Name : Name_Id; Full_Path : Path_Name_Type; Is_Config_File : Boolean := False) return Project_Node_Id; -- Create a new node for a project and register it in the tree so that it -- can be retrieved later on. function Create_Package (Tree : Project_Node_Tree_Ref; Project : Project_Node_Id; Pkg : String) return Project_Node_Id; -- Create a new package in Project. If the package already exists, it is -- returned. The name of the package *must* be lower-cases, or none of its -- attributes will be recognized. function Create_Attribute (Tree : Project_Node_Tree_Ref; Prj_Or_Pkg : Project_Node_Id; Name : Name_Id; Index_Name : Name_Id := No_Name; Kind : Variable_Kind := List; At_Index : Integer := 0; Value : Project_Node_Id := Empty_Node) return Project_Node_Id; -- Create a new attribute. The new declaration is added at the end of the -- declarative item list for Prj_Or_Pkg (a project or a package), but -- before any package declaration). No addition is done if Prj_Or_Pkg is -- Empty_Node. If Index_Name is not "", then if creates an attribute value -- for a specific index. At_Index is used for the " at <idx>" in the naming -- exceptions. -- -- To set the value of the attribute, either provide a value for Value, or -- use Set_Expression_Of to set the value of the attribute (in which case -- Enclose_In_Expression might be useful). The former is recommended since -- it will more correctly handle cases where the index needs to be set on -- the expression rather than on the index of the attribute (i.e. 'for -- Specification ("unit") use "file" at 3', versus 'for Executable ("file" -- at 3) use "name"'). Value must be a N_String_Literal if an index will be -- added to it. function Create_Literal_String (Str : Namet.Name_Id; Tree : Project_Node_Tree_Ref) return Project_Node_Id; -- Create a literal string whose value is Str procedure Add_At_End (Tree : Project_Node_Tree_Ref; Parent : Project_Node_Id; Expr : Project_Node_Id; Add_Before_First_Pkg : Boolean := False; Add_Before_First_Case : Boolean := False); -- Add a new declarative item in the list in Parent. This new declarative -- item will contain Expr (unless Expr is already a declarative item, in -- which case it is added directly to the list). The new item is inserted -- at the end of the list, unless Add_Before_First_Pkg is True. In the -- latter case, it is added just before the first case construction is -- seen, or before the first package (this assumes that all packages are -- found at the end of the project, which isn't true in the general case -- unless you have normalized the project to match this description). function Enclose_In_Expression (Node : Project_Node_Id; Tree : Project_Node_Tree_Ref) return Project_Node_Id; -- Enclose the Node inside a N_Expression node, and return this expression. -- This does nothing if Node is already a N_Expression. -------------------- -- Set Procedures -- -------------------- -- The following procedures are part of the abstract interface of the -- Project File tree. -- Foe each Set_* procedure the condition of validity is specified. If an -- access function is called with invalid arguments, then exception -- Assertion_Error is raised if assertions are enabled, otherwise the -- behaviour is not defined and may result in a crash. -- These are very low-level, and manipulate the tree itself directly. You -- should look at the Create_* procedure instead if you want to use higher -- level constructs procedure Set_Name_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Name_Id); pragma Inline (Set_Name_Of); -- Valid for all non empty nodes. procedure Set_Kind_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Kind); pragma Inline (Set_Kind_Of); -- Valid for all non empty nodes procedure Set_Location_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Source_Ptr); pragma Inline (Set_Location_Of); -- Valid for all non empty nodes procedure Set_First_Comment_After (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_First_Comment_After); -- Valid only for N_Comment_Zones nodes procedure Set_First_Comment_After_End (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_First_Comment_After_End); -- Valid only for N_Comment_Zones nodes procedure Set_First_Comment_Before (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_First_Comment_Before); -- Valid only for N_Comment_Zones nodes procedure Set_First_Comment_Before_End (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_First_Comment_Before_End); -- Valid only for N_Comment_Zones nodes procedure Set_Next_Comment (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Next_Comment); -- Valid only for N_Comment nodes procedure Set_Parent_Project_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); -- Valid only for N_Project nodes procedure Set_Project_File_Includes_Unkept_Comments (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Boolean); -- Valid only for N_Project nodes procedure Set_Directory_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Path_Name_Type); pragma Inline (Set_Directory_Of); -- Valid only for N_Project nodes procedure Set_Expression_Kind_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Variable_Kind); pragma Inline (Set_Expression_Kind_Of); -- Only valid for N_Literal_String, N_Attribute_Declaration, -- N_Variable_Declaration, N_Typed_Variable_Declaration, N_Expression, -- N_Term, N_Variable_Reference, N_Attribute_Reference or N_External_Value -- nodes. procedure Set_Is_Extending_All (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref); pragma Inline (Set_Is_Extending_All); -- Only valid for N_Project and N_With_Clause procedure Set_Is_Not_Last_In_List (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref); pragma Inline (Set_Is_Not_Last_In_List); -- Only valid for N_With_Clause procedure Set_First_Variable_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Variable_Node_Id); pragma Inline (Set_First_Variable_Of); -- Only valid for N_Project or N_Package_Declaration nodes procedure Set_First_Package_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Package_Declaration_Id); pragma Inline (Set_First_Package_Of); -- Only valid for N_Project nodes procedure Set_Package_Id_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Package_Node_Id); pragma Inline (Set_Package_Id_Of); -- Only valid for N_Package_Declaration nodes procedure Set_Path_Name_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Path_Name_Type); pragma Inline (Set_Path_Name_Of); -- Only valid for N_Project and N_With_Clause nodes procedure Set_String_Value_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Name_Id); pragma Inline (Set_String_Value_Of); -- Only valid for N_With_Clause, N_Literal_String nodes or N_Comment. procedure Set_Source_Index_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Int); pragma Inline (Set_Source_Index_Of); -- Only valid for N_Literal_String and N_Attribute_Declaration nodes. For -- N_Literal_String, set the source index of the literal string. For -- N_Attribute_Declaration, set the source index of the index of the -- associative array element. procedure Set_First_With_Clause_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_First_With_Clause_Of); -- Only valid for N_Project nodes procedure Set_Project_Declaration_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Project_Declaration_Of); -- Only valid for N_Project nodes procedure Set_Project_Qualifier_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Qualifier); pragma Inline (Set_Project_Qualifier_Of); -- Only valid for N_Project nodes procedure Set_Extending_Project_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Extending_Project_Of); -- Only valid for N_Project_Declaration nodes procedure Set_First_String_Type_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_First_String_Type_Of); -- Only valid for N_Project nodes procedure Set_Extended_Project_Path_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Path_Name_Type); pragma Inline (Set_Extended_Project_Path_Of); -- Only valid for N_With_Clause nodes procedure Set_Project_Node_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id; Limited_With : Boolean := False); pragma Inline (Set_Project_Node_Of); -- Only valid for N_With_Clause, N_Variable_Reference and -- N_Attribute_Reference nodes. procedure Set_Next_With_Clause_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Next_With_Clause_Of); -- Only valid for N_With_Clause nodes procedure Set_First_Declarative_Item_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_First_Declarative_Item_Of); -- Only valid for N_Project_Declaration, N_Case_Item and -- N_Package_Declaration. procedure Set_Extended_Project_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Extended_Project_Of); -- Only valid for N_Project_Declaration nodes procedure Set_Current_Item_Node (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Current_Item_Node); -- Only valid for N_Declarative_Item nodes procedure Set_Next_Declarative_Item (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Next_Declarative_Item); -- Only valid for N_Declarative_Item node procedure Set_Project_Of_Renamed_Package_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Project_Of_Renamed_Package_Of); -- Only valid for N_Package_Declaration nodes. procedure Set_Next_Package_In_Project (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Next_Package_In_Project); -- Only valid for N_Package_Declaration nodes procedure Set_First_Literal_String (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_First_Literal_String); -- Only valid for N_String_Type_Declaration nodes procedure Set_Next_String_Type (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Next_String_Type); -- Only valid for N_String_Type_Declaration nodes procedure Set_Next_Literal_String (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Next_Literal_String); -- Only valid for N_Literal_String nodes procedure Set_Expression_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Expression_Of); -- Only valid for N_Attribute_Declaration, N_Typed_Variable_Declaration -- or N_Variable_Declaration nodes procedure Set_Associative_Project_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Associative_Project_Of); -- Only valid for N_Attribute_Declaration nodes procedure Set_Associative_Package_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Associative_Package_Of); -- Only valid for N_Attribute_Declaration nodes procedure Set_Associative_Array_Index_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Name_Id); pragma Inline (Set_Associative_Array_Index_Of); -- Only valid for N_Attribute_Declaration and N_Attribute_Reference. procedure Set_Next_Variable (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Next_Variable); -- Only valid for N_Typed_Variable_Declaration or N_Variable_Declaration -- nodes. procedure Set_First_Term (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_First_Term); -- Only valid for N_Expression nodes procedure Set_Next_Expression_In_List (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Next_Expression_In_List); -- Only valid for N_Expression nodes procedure Set_Current_Term (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Current_Term); -- Only valid for N_Term nodes procedure Set_Next_Term (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Next_Term); -- Only valid for N_Term nodes procedure Set_First_Expression_In_List (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_First_Expression_In_List); -- Only valid for N_Literal_String_List nodes procedure Set_Package_Node_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Package_Node_Of); -- Only valid for N_Variable_Reference or N_Attribute_Reference nodes. procedure Set_String_Type_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_String_Type_Of); -- Only valid for N_Variable_Reference or N_Typed_Variable_Declaration -- nodes. procedure Set_External_Reference_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_External_Reference_Of); -- Only valid for N_External_Value nodes procedure Set_External_Default_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_External_Default_Of); -- Only valid for N_External_Value nodes procedure Set_Case_Variable_Reference_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Case_Variable_Reference_Of); -- Only valid for N_Case_Construction nodes procedure Set_First_Case_Item_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_First_Case_Item_Of); -- Only valid for N_Case_Construction nodes procedure Set_First_Choice_Of (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_First_Choice_Of); -- Only valid for N_Case_Item nodes. procedure Set_Next_Case_Item (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Project_Node_Id); pragma Inline (Set_Next_Case_Item); -- Only valid for N_Case_Item nodes. procedure Set_Case_Insensitive (Node : Project_Node_Id; In_Tree : Project_Node_Tree_Ref; To : Boolean); -- Only valid for N_Attribute_Declaration and N_Attribute_Reference nodes ------------------------------- -- Restricted Access Section -- ------------------------------- package Tree_Private_Part is -- This is conceptually in the private part. However, for efficiency, -- some packages are accessing it directly. type Project_Node_Record is record Kind : Project_Node_Kind; Qualifier : Project_Qualifier := Unspecified; Location : Source_Ptr := No_Location; Directory : Path_Name_Type := No_Path; -- Only for N_Project Expr_Kind : Variable_Kind := Undefined; -- See below for what Project_Node_Kind it is used Variables : Variable_Node_Id := Empty_Node; -- First variable in a project or a package Packages : Package_Declaration_Id := Empty_Node; -- First package declaration in a project Pkg_Id : Package_Node_Id := Empty_Package; -- Only used for N_Package_Declaration -- -- The component Pkg_Id is an entry into the table Package_Attributes -- (in Prj.Attr). It is used to indicate all the attributes of the -- package with their characteristics. -- -- The tables Prj.Attr.Attributes and Prj.Attr.Package_Attributes -- are built once and for all through a call (from Prj.Initialize) -- to procedure Prj.Attr.Initialize. It is never modified after that. Name : Name_Id := No_Name; -- See below for what Project_Node_Kind it is used Src_Index : Int := 0; -- Index of a unit in a multi-unit source. -- Only for some N_Attribute_Declaration and N_Literal_String. Path_Name : Path_Name_Type := No_Path; -- See below for what Project_Node_Kind it is used Value : Name_Id := No_Name; -- See below for what Project_Node_Kind it is used Field1 : Project_Node_Id := Empty_Node; -- See below the meaning for each Project_Node_Kind Field2 : Project_Node_Id := Empty_Node; -- See below the meaning for each Project_Node_Kind Field3 : Project_Node_Id := Empty_Node; -- See below the meaning for each Project_Node_Kind Field4 : Project_Node_Id := Empty_Node; -- See below the meaning for each Project_Node_Kind Flag1 : Boolean := False; -- This flag is significant only for: -- -- N_Attribute_Declaration and N_Attribute_Reference -- Indicates for an associative array attribute, that the -- index is case insensitive. -- -- N_Comment -- Indicates that the comment is preceded by an empty line. -- -- N_Project -- Indicates that there are comments in the project source that -- cannot be kept in the tree. -- -- N_Project_Declaration -- Indicates that there are unkept comments in the project. -- -- N_With_Clause -- Indicates that this is not the last with in a with clause. -- Set for "A", but not for "B" in with "B"; and with "A", "B"; Flag2 : Boolean := False; -- This flag is significant only for: -- -- N_Project -- Indicates that the project "extends all" another project. -- -- N_Comment -- Indicates that the comment is followed by an empty line. -- -- N_With_Clause -- Indicates that the originally imported project is an extending -- all project. Comments : Project_Node_Id := Empty_Node; -- For nodes other that N_Comment_Zones or N_Comment, designates the -- comment zones associated with the node. -- -- For N_Comment_Zones, designates the comment after the "end" of -- the construct. -- -- For N_Comment, designates the next comment, if any. end record; -- type Project_Node_Kind is -- (N_Project, -- -- Name: project name -- -- Path_Name: project path name -- -- Expr_Kind: Undefined -- -- Field1: first with clause -- -- Field2: project declaration -- -- Field3: first string type -- -- Field4: parent project, if any -- -- Value: extended project path name (if any) -- N_With_Clause, -- -- Name: imported project name -- -- Path_Name: imported project path name -- -- Expr_Kind: Undefined -- -- Field1: project node -- -- Field2: next with clause -- -- Field3: project node or empty if "limited with" -- -- Field4: not used -- -- Value: literal string withed -- N_Project_Declaration, -- -- Name: not used -- -- Path_Name: not used -- -- Expr_Kind: Undefined -- -- Field1: first declarative item -- -- Field2: extended project -- -- Field3: extending project -- -- Field4: not used -- -- Value: not used -- N_Declarative_Item, -- -- Name: not used -- -- Path_Name: not used -- -- Expr_Kind: Undefined -- -- Field1: current item node -- -- Field2: next declarative item -- -- Field3: not used -- -- Field4: not used -- -- Value: not used -- N_Package_Declaration, -- -- Name: package name -- -- Path_Name: not used -- -- Expr_Kind: Undefined -- -- Field1: project of renamed package (if any) -- -- Field2: first declarative item -- -- Field3: next package in project -- -- Field4: not used -- -- Value: not used -- N_String_Type_Declaration, -- -- Name: type name -- -- Path_Name: not used -- -- Expr_Kind: Undefined -- -- Field1: first literal string -- -- Field2: next string type -- -- Field3: not used -- -- Field4: not used -- -- Value: not used -- N_Literal_String, -- -- Name: not used -- -- Path_Name: not used -- -- Expr_Kind: Single -- -- Field1: next literal string -- -- Field2: not used -- -- Field3: not used -- -- Field4: not used -- -- Value: string value -- N_Attribute_Declaration, -- -- Name: attribute name -- -- Path_Name: not used -- -- Expr_Kind: attribute kind -- -- Field1: expression -- -- Field2: project of full associative array -- -- Field3: package of full associative array -- -- Field4: not used -- -- Value: associative array index -- -- (if an associative array element) -- N_Typed_Variable_Declaration, -- -- Name: variable name -- -- Path_Name: not used -- -- Expr_Kind: Single -- -- Field1: expression -- -- Field2: type of variable (N_String_Type_Declaration) -- -- Field3: next variable -- -- Field4: not used -- -- Value: not used -- N_Variable_Declaration, -- -- Name: variable name -- -- Path_Name: not used -- -- Expr_Kind: variable kind -- -- Field1: expression -- -- Field2: not used -- -- Field3 is used for next variable, instead of Field2, -- -- so that it is the same field for -- -- N_Variable_Declaration and -- -- N_Typed_Variable_Declaration -- -- Field3: next variable -- -- Field4: not used -- -- Value: not used -- N_Expression, -- -- Name: not used -- -- Path_Name: not used -- -- Expr_Kind: expression kind -- -- Field1: first term -- -- Field2: next expression in list -- -- Field3: not used -- -- Value: not used -- N_Term, -- -- Name: not used -- -- Path_Name: not used -- -- Expr_Kind: term kind -- -- Field1: current term -- -- Field2: next term in the expression -- -- Field3: not used -- -- Field4: not used -- -- Value: not used -- N_Literal_String_List, -- -- Designates a list of string expressions between brackets -- -- separated by commas. The string expressions are not necessarily -- -- literal strings. -- -- Name: not used -- -- Path_Name: not used -- -- Expr_Kind: List -- -- Field1: first expression -- -- Field2: not used -- -- Field3: not used -- -- Field4: not used -- -- Value: not used -- N_Variable_Reference, -- -- Name: variable name -- -- Path_Name: not used -- -- Expr_Kind: variable kind -- -- Field1: project (if specified) -- -- Field2: package (if specified) -- -- Field3: type of variable (N_String_Type_Declaration), if any -- -- Field4: not used -- -- Value: not used -- N_External_Value, -- -- Name: not used -- -- Path_Name: not used -- -- Expr_Kind: Single -- -- Field1: Name of the external reference (literal string) -- -- Field2: Default (literal string) -- -- Field3: not used -- -- Value: not used -- N_Attribute_Reference, -- -- Name: attribute name -- -- Path_Name: not used -- -- Expr_Kind: attribute kind -- -- Field1: project -- -- Field2: package (if attribute of a package) -- -- Field3: not used -- -- Field4: not used -- -- Value: associative array index -- -- (if an associative array element) -- N_Case_Construction, -- -- Name: not used -- -- Path_Name: not used -- -- Expr_Kind: Undefined -- -- Field1: case variable reference -- -- Field2: first case item -- -- Field3: not used -- -- Field4: not used -- -- Value: not used -- N_Case_Item -- -- Name: not used -- -- Path_Name: not used -- -- Expr_Kind: not used -- -- Field1: first choice (literal string), or Empty_Node -- -- for when others -- -- Field2: first declarative item -- -- Field3: next case item -- -- Field4: not used -- -- Value: not used -- N_Comment_zones -- -- Name: not used -- -- Path_Name: not used -- -- Expr_Kind: not used -- -- Field1: comment before the construct -- -- Field2: comment after the construct -- -- Field3: comment before the "end" of the construct -- -- Value: end of line comment -- -- Field4: not used -- -- Comments: comment after the "end" of the construct -- N_Comment -- -- Name: not used -- -- Path_Name: not used -- -- Expr_Kind: not used -- -- Field1: not used -- -- Field2: not used -- -- Field3: not used -- -- Field4: not used -- -- Value: comment -- -- Flag1: comment is preceded by an empty line -- -- Flag2: comment is followed by an empty line -- -- Comments: next comment package Project_Node_Table is new GNAT.Dynamic_Tables (Table_Component_Type => Project_Node_Record, Table_Index_Type => Project_Node_Id, Table_Low_Bound => First_Node_Id, Table_Initial => Project_Nodes_Initial, Table_Increment => Project_Nodes_Increment); -- Table contains the syntactic tree of project data from project files type Project_Name_And_Node is record Name : Name_Id; -- Name of the project Display_Name : Name_Id; -- The name of the project as it appears in the .gpr file Node : Project_Node_Id; -- Node of the project in table Project_Nodes Canonical_Path : Path_Name_Type; -- Resolved and canonical path of a real project file. -- No_Name in case of virtual projects. Extended : Boolean; -- True when the project is being extended by another project Proj_Qualifier : Project_Qualifier; -- The project qualifier of the project, if any end record; No_Project_Name_And_Node : constant Project_Name_And_Node := (Name => No_Name, Display_Name => No_Name, Node => Empty_Node, Canonical_Path => No_Path, Extended => True, Proj_Qualifier => Unspecified); package Projects_Htable is new GNAT.Dynamic_HTables.Simple_HTable (Header_Num => Header_Num, Element => Project_Name_And_Node, No_Element => No_Project_Name_And_Node, Key => Name_Id, Hash => Hash, Equal => "="); -- This hash table contains a mapping of project names to project nodes. -- Note that this hash table contains only the nodes whose Kind is -- N_Project. It is used to find the node of a project from its name, -- and to verify if a project has already been parsed, knowing its name. end Tree_Private_Part; type Project_Node_Tree_Data is record Project_Nodes : Tree_Private_Part.Project_Node_Table.Instance; Projects_HT : Tree_Private_Part.Projects_Htable.Instance; Incomplete_With : Boolean := False; -- Set to True if the projects were loaded with the flag -- Ignore_Missing_With set to True, and there were indeed some with -- statements that could not be resolved end record; procedure Free (Proj : in out Project_Node_Tree_Ref); -- Free memory used by Prj private type Comment_Array is array (Positive range <>) of Comment_Data; type Comments_Ptr is access Comment_Array; type Comment_State is record End_Of_Line_Node : Project_Node_Id := Empty_Node; Previous_Line_Node : Project_Node_Id := Empty_Node; Previous_End_Node : Project_Node_Id := Empty_Node; Unkept_Comments : Boolean := False; Comments : Comments_Ptr := null; end record; end Prj.Tree;
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