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4340 | --
-- Copyright (C) 2019-2023, AdaCore
--
-- SPDX-License-Identifier: Apache-2.0 WITH LLVM-Exception
--
with Ada.Characters.Conversions;
with Ada.Characters.Handling;
with Ada.Containers;
with Ada.Containers.Vectors;
with Ada.Exceptions;
with Ada.Strings.Fixed;
with Ada.Strings.Maps.Constants;
with Ada.Strings.Wide_Wide_Unbounded;
with GNAT.Regpat;
with Gpr_Parser_Support.Diagnostics;
with Gpr_Parser_Support.Slocs;
with Gpr_Parser_Support.Text;
with Gpr_Parser.Common;
with GPR2.Builtin;
with GPR2.KB;
with GPR2.Message;
with GPR2.Project.Attribute.Set;
with GPR2.Project.Attribute_Index;
with GPR2.Project.Definition;
with GPR2.Project.Pack;
with GPR2.Project.Parser.Registry;
with GPR2.Project.Registry.Attribute;
with GPR2.Project.Registry.Pack;
with GPR2.Project.Tree;
with GPR2.Project.Variable.Set;
with GPR2.Source_Reference.Attribute;
with GPR2.Source_Reference.Identifier;
with GPR2.Source_Reference.Pack;
with GPR2.Source_Reference.Value;
package body GPR2.Project.Parser is
use Ada.Exceptions;
use Gpr_Parser.Common;
use Gpr_Parser_Support.Text;
package PA renames GPR2.Project.Attribute;
package PRA renames GPR2.Project.Registry.Attribute;
package PRP renames GPR2.Project.Registry.Pack;
package PAI renames GPR2.Project.Attribute_Index;
package ASU renames Ada.Strings.Unbounded;
function Is_Builtin_Project_Name (Name : Name_Type) return Boolean is
(To_Lower (Name) in "project" | "config" | "runtime");
-- Some helpers routines for the parser
function Get_Value_Type
(Node : Single_Tok_Node'Class) return Value_Type;
-- Returns the Value_Type for the given node
function Get_Name_Type
(Node : Single_Tok_Node'Class) return Name_Type
is
(Name_Type (Get_Value_Type (Node)));
-- Returns the Name for the given node
function Get_Name_Type
(Node : Gpr_Node'Class;
First : Positive := 1;
Last : Positive;
Sep : String := ".") return Name_Type
with Pre => Last >= First and then Children_Count (Node) >= Last;
-- Returns the Name for the given children of given node
function Get_Filename
(Node : Single_Tok_Node'Class) return Filename_Type
is
(Filename_Type (Get_Value_Type (Node)));
-- Returns the Name for the given node
function Present (Node : Gpr_Node'Class) return Boolean is
(not Node.Is_Null);
-- Returns True if the Node is present (not null)
function Get_Source_Reference
(Path_Name : GPR2.Path_Name.Object;
Slr : Gpr_Parser_Support.Slocs.Source_Location_Range)
return Source_Reference.Object
is
(Source_Reference.Object
(Source_Reference.Create
(Path_Name.Value,
Positive (Slr.Start_Line),
Positive (Slr.Start_Column))));
function Get_Source_Reference
(Path_Name : GPR2.Path_Name.Object;
Node : Gpr_Node'Class) return Source_Reference.Object
is
(Get_Source_Reference (Path_Name, Sloc_Range (Node)));
function Get_Value_Reference
(Path_Name : GPR2.Path_Name.Object;
Slr : Gpr_Parser_Support.Slocs.Source_Location_Range;
Value : Value_Type;
At_Pos : Unit_Index := No_Index) return Source_Reference.Value.Object
is
(Source_Reference.Value.Object
(Source_Reference.Value.Create
(Get_Source_Reference (Path_Name, Slr), Value, At_Pos)));
function Get_Value_Reference
(Value : Value_Type;
Sloc : Source_Reference.Object;
At_Pos : Unit_Index := No_Index;
From_Default : Boolean := False) return Source_Reference.Value.Object
is
(Source_Reference.Value.Object
(Source_Reference.Value.Create (Sloc, Value, At_Pos, From_Default)));
function Get_Identifier_Reference
(Path_Name : GPR2.Path_Name.Object;
Slr : Gpr_Parser_Support.Slocs.Source_Location_Range;
Identifier : Name_Type)
return Source_Reference.Identifier.Object
is
(Source_Reference.Identifier.Object
(Source_Reference.Identifier.Create
(Get_Source_Reference (Path_Name, Slr), Identifier)));
function Get_Attribute_Reference
(Path_Name : GPR2.Path_Name.Object;
Slr : Gpr_Parser_Support.Slocs.Source_Location_Range;
Identifier : Q_Attribute_Id)
return Source_Reference.Attribute.Object
is
(Source_Reference.Attribute.Object
(Source_Reference.Attribute.Create
(Get_Source_Reference (Path_Name, Slr), Identifier)));
function Get_Raw_Path
(Node : Single_Tok_Node'Class) return GPR2.Path_Name.Object
is
(GPR2.Path_Name.Create_File
(GPR2.Project.Ensure_Extension (Get_Filename (Node)),
GPR2.Path_Name.No_Resolution));
-- Creates project Path_Name.Object not checked for location
function Get_String_Literal
(N : Gpr_Node'Class;
Error : out Boolean) return Value_Type;
-- Returns the first string literal found under this node. This is an
-- helper routine to get strings out of built-in parameters for example.
-- Set Error to True if the node was not a simple string-literal.
function Parse_Stage_1
(Unit : Analysis_Unit;
Filename : GPR2.Path_Name.Object;
Implicit_With : GPR2.Path_Name.Set.Object;
Messages : in out Log.Object) return Object;
-- Analyzes the project, recording all external references and imports
-----------------
-- Clear_Cache --
-----------------
procedure Clear_Cache is
begin
GPR2.Project.Parser.Registry.Clear_Cache;
end Clear_Cache;
--------------
-- Extended --
--------------
function Extended (Self : Object) return GPR2.Project.Import.Object is
begin
return Self.Extended;
end Extended;
---------------
-- Externals --
---------------
function Externals (Self : Object) return Containers.Name_Set is
begin
return Self.Externals;
end Externals;
-------------------
-- Get_Name_Type --
-------------------
function Get_Name_Type
(Node : Gpr_Node'Class;
First : Positive := 1;
Last : Positive;
Sep : String := ".") return Name_Type
is
Name : ASU.Unbounded_String :=
ASU.To_Unbounded_String
(Ada.Characters.Conversions.To_String
(Text (Child (Node, First))));
begin
for C in First + 1 .. Last loop
ASU.Append (Name, Sep);
ASU.Append
(Name,
Ada.Characters.Conversions.To_String (Text (Child (Node, C))));
end loop;
return Name_Type (ASU.To_String (Name));
end Get_Name_Type;
------------------------
-- Get_String_Literal --
------------------------
function Get_String_Literal
(N : Gpr_Node'Class;
Error : out Boolean) return Value_Type
is
function Parser (Node : Gpr_Node'Class) return Visit_Status;
-- Parser for the string-literal tree
Result : Unbounded_String;
------------
-- Parser --
------------
function Parser (Node : Gpr_Node'Class) return Visit_Status is
Status : Visit_Status := Into;
procedure Handle_String (Node : String_Literal)
with Pre => Present (Node), Inline;
-- A simple static string
-------------------
-- Handle_String --
-------------------
procedure Handle_String (Node : String_Literal) is
begin
Result := To_Unbounded_String
(Unquote (Value_Type (To_UTF8 (Node.Text))));
end Handle_String;
begin
case Kind (Node) is
when Gpr_String_Literal =>
Handle_String (Node.As_String_Literal);
when Gpr_String_Literal_At | Gpr_Base_List =>
null;
when others =>
-- Everything else is an error
Error := True;
Status := Over;
end case;
return Status;
end Parser;
begin
Error := False;
Traverse (N, Parser'Access);
return Value_Type (To_String (Result));
end Get_String_Literal;
--------------------
-- Get_Value_Type --
--------------------
function Get_Value_Type
(Node : Single_Tok_Node'Class) return Value_Type
is
use Ada.Characters.Conversions;
V : constant Wide_Wide_String := Text (Node);
Offset : Natural := 0;
begin
if V (V'First) = '"' and then V (V'Last) = '"' then
Offset := 1;
end if;
return To_String (V (V'First + Offset .. V'Last - Offset));
end Get_Value_Type;
------------------
-- Has_Extended --
------------------
function Has_Extended (Self : Object) return Boolean is
begin
return Self.Extended.Is_Defined;
end Has_Extended;
-------------------
-- Has_Externals --
-------------------
function Has_Externals (Self : Object) return Boolean is
begin
return not Self.Externals.Is_Empty;
end Has_Externals;
-----------------
-- Has_Imports --
-----------------
function Has_Imports (Self : Object) return Boolean is
begin
return not Self.Imports.Is_Empty;
end Has_Imports;
-------------
-- Imports --
-------------
function Imports (Self : Object) return GPR2.Project.Import.Set.Object is
begin
return Self.Imports;
end Imports;
----------------------
-- Is_Extending_All --
----------------------
function Is_Extending_All (Self : Object) return Boolean is
begin
return Self.Is_All;
end Is_Extending_All;
----------
-- Name --
----------
function Name (Self : Object) return Name_Type is
begin
return Name_Type (To_String (Self.Name));
end Name;
-----------
-- Parse --
-----------
function Parse
(Contents : Unbounded_String;
Messages : in out Log.Object;
Pseudo_Filename : GPR2.Path_Name.Object := GPR2.Path_Name.Undefined)
return Object
is
use Ada.Characters.Conversions;
use Ada.Strings.Wide_Wide_Unbounded;
Filename : constant GPR2.Path_Name.Object :=
(if Pseudo_Filename.Is_Defined
then Pseudo_Filename
else GPR2.Path_Name.Create_File
("/string_input/default.gpr"));
Context : constant Analysis_Context := Create_Context ("UTF-8");
Unit : Analysis_Unit;
Project : Object;
begin
if Contents = Null_Unbounded_String then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Message => "project string is empty",
Sloc => Source_Reference.Create (Filename.Value, 0, 0)));
return Undefined;
end if;
Unit := Get_From_Buffer
(Context, Filename.Value, Buffer => To_String (Contents));
if Root (Unit).Is_Null or else Has_Diagnostics (Unit) then
if Has_Diagnostics (Unit) then
for D of Diagnostics (Unit) loop
declare
Sloc : constant Source_Reference.Object'Class :=
Source_Reference.Create
(Filename => Filename.Value,
Line =>
Natural (D.Sloc_Range.Start_Line),
Column =>
Natural (D.Sloc_Range.Start_Column));
begin
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc => Sloc,
Message =>
To_String (To_Wide_Wide_String (D.Message))));
end;
end loop;
end if;
return Undefined;
end if;
-- Do the first stage parsing. We just need the external references
-- and the project dependencies. This is the minimum to be able to
-- create the project tree and setup the project context.
Project := Parse_Stage_1
(Unit, Filename, GPR2.Path_Name.Set.Empty_Set, Messages);
-- Then record langkit tree data with project. Those data will be
-- used for later parsing when creating view of projects with a
-- full context.
Project.File := Filename;
Project.Unit := Unit;
Project.Context := Context;
-- If this is a configuration project, then we register it under the
-- "config" name as this is what is expected on this implementation.
-- That is, referencing the configuration is done using
-- Config'Archive_Suffix for example.
if Project.Qualifier = K_Configuration then
Project.Name := To_Unbounded_String ("Config");
end if;
return Project;
end Parse;
-----------
-- Parse --
-----------
function Parse
(Filename : GPR2.Path_Name.Object;
Implicit_With : GPR2.Path_Name.Set.Object;
Messages : in out Log.Object;
File_Reader : Gpr_Parser_Support.File_Readers.File_Reader_Reference :=
Gpr_Parser_Support.File_Readers.
No_File_Reader_Reference)
return Object
is
use Ada.Characters.Conversions;
use Ada.Strings.Wide_Wide_Unbounded;
Context : Analysis_Context :=
Create_Context (Charset => "UTF-8",
File_Reader => File_Reader);
Unit : Analysis_Unit;
Project : Object;
begin
if Registry.Check_Project (Filename, Project) then
return Project;
else
if not Filename.Exists then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Message => "project file """ & Filename.Value &
""" not found",
Sloc => Source_Reference.Create (Filename.Value, 0, 0)));
return Undefined;
end if;
Unit := Get_From_File (Context, Filename.Value);
if Root (Unit).Is_Null or else Has_Diagnostics (Unit) then
declare
use Gpr_Parser_Support.Diagnostics;
Diags_UTF8 : constant Diagnostics_Array := Diagnostics (Unit);
begin
-- if UTF-8 encoding issue let's try Windows-1252, a ISO 8859-1
-- (Latin-1) superset.
Context := Create_Context (Charset => "Windows-1252",
File_Reader => File_Reader);
Unit := Get_From_File (Context, Filename.Value);
if Root (Unit).Is_Null or else Has_Diagnostics (Unit) then
declare
Diags : constant Diagnostics_Array :=
(if Diags_UTF8'Length > 0
then Diags_UTF8
else Diagnostics (Unit));
begin
for D of Diags loop
declare
Sloc : constant Source_Reference.Object'Class :=
Source_Reference.Create
(Filename => Filename.Value,
Line =>
Natural (D.Sloc_Range.Start_Line),
Column =>
Natural (D.Sloc_Range.Start_Column));
begin
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc => Sloc,
Message =>
To_String
(To_Wide_Wide_String (D.Message))));
end;
end loop;
return Undefined;
end;
end if;
end;
end if;
-- Do the first stage parsing. We just need the external references
-- and the project dependencies. This is the minimum to be able to
-- create the project tree and setup the project context.
Project := Parse_Stage_1 (Unit, Filename, Implicit_With, Messages);
-- Then record langkit tree data with project. Those data will be
-- used for later parsing when creating view of projects with a
-- full context.
Project.File := Filename;
Project.Unit := Unit;
Project.Context := Context;
-- If this is a configuration project, then we register it under the
-- "config" name as this is what is expected on this implementation.
-- That is, referencing the configuration is done using
-- Config'Archive_Suffix for example.
if Project.Qualifier = K_Configuration then
Project.Name := To_Unbounded_String ("Config");
end if;
-- Finally register this project into the registry
if not Messages.Has_Error then
Registry.Register (Filename, Project);
end if;
return Project;
end if;
end Parse;
-------------------
-- Parse_Stage_1 --
-------------------
function Parse_Stage_1
(Unit : Analysis_Unit;
Filename : GPR2.Path_Name.Object;
Implicit_With : GPR2.Path_Name.Set.Object;
Messages : in out Log.Object) return Object
is
use type GPR2.Path_Name.Object;
Project : Object;
-- The project being constructed
function Parser (Node : Gpr_Node'Class) return Visit_Status;
-- Actual parser callback for the project
------------
-- Parser --
------------
function Parser (Node : Gpr_Node'Class) return Visit_Status is
Status : Visit_Status := Into;
procedure Parse_Project_Declaration (N : Project_Declaration);
-- Parse a project declaration and set the qualifier if present
procedure Parse_Builtin (N : Builtin_Function_Call);
-- Put the name of the external into the Externals list
procedure Parse_With_Decl (N : With_Decl);
-- Add the name of the withed project into the Imports list
procedure Parse_Typed_String_Decl (N : Typed_String_Decl);
-- A typed string declaration
-------------------
-- Parse_Builtin --
-------------------
procedure Parse_Builtin (N : Builtin_Function_Call) is
procedure Parse_External_Reference (N : Builtin_Function_Call);
-- Put the name of the external into the Externals list
procedure Parse_External_As_List_Reference
(N : Builtin_Function_Call);
-- Put the name of the external into the Externals list
procedure Parse_Split_Reference (N : Builtin_Function_Call);
-- Check that split parameters has the proper type
procedure Parse_Match_Reference (N : Builtin_Function_Call);
-- Check that split parameters has the proper type
procedure Parse_One_Parameter_Reference
(N : Builtin_Function_Call;
Name : Name_Type);
-- Check that lower/upper parameters has the proper type
procedure Parse_Two_Parameter_Reference
(N : Builtin_Function_Call;
Name : Name_Type);
-- Check that default/alternative parameters has the proper type
--------------------------------------
-- Parse_External_As_List_Reference --
--------------------------------------
procedure Parse_External_As_List_Reference
(N : Builtin_Function_Call)
is
Exprs : constant Term_List_List := F_Terms (F_Parameters (N));
begin
-- Note that this routine is only validating the syntax
-- of the external_as_list built-in. It does not add the
-- variable referenced by the built-in as dependencies
-- as an external_as_list result cannot be used in a
-- case statement.
if Exprs.Is_Null or else Exprs.Children_Count = 0 then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc => Get_Source_Reference (Filename, N),
Message =>
"missing parameters for external_as_list"
& " built-in"));
elsif Exprs.Children_Count < 2 then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Filename, Exprs),
Message =>
"external_as_list requires two "
& "parameters"));
elsif Exprs.Children_Count > 2 then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference
(Filename, Exprs),
Message =>
"external_as_list accepts only two parameters"));
else
-- We have External_As_List ("VAR", "SEP"), check the
-- variable name.
declare
Var_Node : constant Term_List :=
Exprs.Child (1).As_Term_List;
Error : Boolean;
Var : constant Value_Type :=
Get_String_Literal (Var_Node, Error);
begin
if Error then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Filename, Var_Node),
Message =>
"external_as_list first parameter must be "
& "a simple string"));
elsif Var = "" then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Filename, Var_Node),
Message =>
"external_as_list variable name must not "
& "be empty"));
end if;
end;
-- Check that the second parameter exists and is a string
declare
Sep_Node : constant Term_List :=
Child (Exprs, 2).As_Term_List;
Error : Boolean;
Sep : constant Value_Type :=
Get_String_Literal (Sep_Node, Error);
begin
if Error then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference
(Filename, Sep_Node),
Message =>
"external_as_list second parameter must "
& "be a simple string"));
elsif Sep = "" then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference
(Filename, Sep_Node),
Message =>
"external_as_list separator must not "
& "be empty"));
end if;
end;
end if;
end Parse_External_As_List_Reference;
------------------------------
-- Parse_External_Reference --
------------------------------
procedure Parse_External_Reference (N : Builtin_Function_Call) is
Exprs : constant Term_List_List := F_Terms (F_Parameters (N));
begin
if Exprs.Is_Null or else Exprs.Children_Count = 0 then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc => Get_Source_Reference (Filename, N),
Message =>
"missing parameter for external built-in"));
elsif Exprs.Children_Count > 2 then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Filename, Exprs),
Message =>
"external built-in accepts at most two "
& "parameters."));
else
-- We have External ("VAR" [, "VALUE"]), get the
-- variable name.
declare
Var_Node : constant Term_List :=
Child (Exprs, 1).As_Term_List;
Error : Boolean;
Var : constant Value_Type :=
Get_String_Literal (Var_Node, Error);
begin
if Error then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Filename, Var_Node),
Message =>
"external first parameter must be a "
& "simple string"));
elsif Var = "" then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Filename, Var_Node),
Message =>
"external variable name must not be "
& "empty"));
else
Project.Externals.Include (Optional_Name_Type (Var));
declare
Node : Gpr_Node := Exprs.Child (2);
begin
if not Node.Is_Null then
Node := Node.Child (1);
if not Node.Is_Null
and then Node.Kind = Gpr_Builtin_Function_Call
then
Parse_Builtin (Node.As_Builtin_Function_Call);
end if;
end if;
end;
end if;
end;
end if;
end Parse_External_Reference;
---------------------------
-- Parse_Match_Reference --
---------------------------
procedure Parse_Match_Reference (N : Builtin_Function_Call) is
Exprs : constant Term_List_List := F_Terms (F_Parameters (N));
begin
-- Note that this routine is only validating the syntax
-- of the split built-in.
if Exprs.Is_Null or else Exprs.Children_Count = 0 then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc => Get_Source_Reference (Filename, N),
Message => "missing parameters for match built-in"));
-- Check that the second parameter exists
elsif Exprs.Children_Count < 2 then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc => Get_Source_Reference (Filename, Exprs),
Message => "match requires a second parameter"));
-- Check that we don't have more than two parameters
elsif Exprs.Children_Count > 3 then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Filename, Exprs),
Message =>
"match accepts a maximum of three parameters"));
end if;
end Parse_Match_Reference;
-----------------------------------
-- Parse_One_Parameter_Reference --
-----------------------------------
procedure Parse_One_Parameter_Reference
(N : Builtin_Function_Call;
Name : Name_Type)
is
Exprs : constant Term_List_List := F_Terms (F_Parameters (N));
begin
-- Note that this routine is only validating the syntax
-- of the split built-in.
if Exprs.Is_Null or else Exprs.Children_Count = 0 then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc => Get_Source_Reference (Filename, N),
Message => "missing parameters for "
& String (Name) & " built-in"));
-- Check that we don't have more than two parameters
elsif Exprs.Children_Count > 1 then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Filename, Exprs),
Message =>
String (Name) & " accepts only one parameter"));
end if;
end Parse_One_Parameter_Reference;
---------------------------
-- Parse_Split_Reference --
---------------------------
procedure Parse_Split_Reference (N : Builtin_Function_Call) is
Exprs : constant Term_List_List := F_Terms (F_Parameters (N));
begin
-- Note that this routine is only validating the syntax
-- of the split built-in.
if Exprs.Is_Null or else Exprs.Children_Count = 0 then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc => Get_Source_Reference (Filename, N),
Message => "missing parameters for split built-in"));
-- Check that the second parameter exists
elsif Exprs.Children_Count = 1 then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc => Get_Source_Reference (Filename, Exprs),
Message => "split requires a second parameter"));
-- Check that we don't have more than two parameters
elsif Exprs.Children_Count > 2 then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Filename, Exprs),
Message =>
"split accepts only two parameters"));
end if;
end Parse_Split_Reference;
-----------------------------------
-- Parse_Two_Parameter_Reference --
-----------------------------------
procedure Parse_Two_Parameter_Reference
(N : Builtin_Function_Call;
Name : Name_Type)
is
Exprs : constant Term_List_List := F_Terms (F_Parameters (N));
begin
-- Note that this routine is only validating the syntax
-- of the split built-in.
if Exprs.Is_Null or else Exprs.Children_Count < 2 then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc => Get_Source_Reference (Filename, N),
Message => "missing parameters for "
& String (Name) & " built-in"));
-- Check that we don't have more than two parameters
elsif Exprs.Children_Count > 2 then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Filename, Exprs),
Message =>
String (Name) & " accepts only two parameters"));
end if;
end Parse_Two_Parameter_Reference;
Function_Name : constant Name_Type :=
Get_Name_Type (F_Function_Name (N));
begin
if Function_Name = "external" then
Parse_External_Reference (N);
elsif Function_Name = "external_as_list" then
Parse_External_As_List_Reference (N);
elsif Function_Name = "split" then
Parse_Split_Reference (N);
elsif Function_Name = "lower" then
Parse_One_Parameter_Reference (N, "lower");
elsif Function_Name = "upper" then
Parse_One_Parameter_Reference (N, "upper");
elsif Function_Name = "match" then
Parse_Match_Reference (N);
elsif Function_Name = "default" then
Parse_Two_Parameter_Reference (N, "default");
elsif Function_Name = "alternative" then
Parse_Two_Parameter_Reference (N, "alternative");
elsif Function_Name = "item_at" then
Parse_Two_Parameter_Reference (N, "item_at");
elsif Function_Name = "filter_out" then
Parse_Two_Parameter_Reference (N, "filter_out");
elsif Function_Name = "remove_prefix" then
Parse_Two_Parameter_Reference (N, "remove_prefix");
elsif Function_Name = "remove_suffix" then
Parse_Two_Parameter_Reference (N, "remove_suffix");
else
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc => Get_Source_Reference (Filename, N),
Message =>
"unknown built-in """
& String (Function_Name) & '"'));
end if;
end Parse_Builtin;
-------------------------------
-- Parse_Project_Declaration --
-------------------------------
procedure Parse_Project_Declaration (N : Project_Declaration) is
Qual : constant Project_Qualifier := F_Qualifier (N);
Ext : constant Project_Extension := F_Extension (N);
begin
Project.Name := To_Unbounded_String
(To_UTF8 (F_Project_Name (N).Text));
-- Check that project name is consistent with the end declaration
if Name (Project) /= Name_Type (To_UTF8 (F_End_Name (N).Text)) then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Filename, F_End_Name (N)),
Message =>
"'end " & String (Name (Project)) & "' expected"));
end if;
-- If we have an explicit qualifier parse it now. If not the
-- kind of project will be determined later during a second
-- pass.
if Present (Qual) then
Project.Expl_Qual := True;
Project.Qualifier :=
(case Kind (Qual) is
when Gpr_Project_Qualifier_Abstract
=> K_Abstract,
when Gpr_Project_Qualifier_Standard
=> K_Standard,
when Gpr_Project_Qualifier_Library
=> K_Library,
when Gpr_Project_Qualifier_Aggregate
=> K_Aggregate,
when Gpr_Project_Qualifier_Aggregate_Library
=> K_Aggregate_Library,
when Gpr_Project_Qualifier_Configuration
=> K_Configuration,
when others
=> raise Program_Error with "Unreachable");
end if;
-- Check if we have an extends declaration
if Present (Ext) then
Project.Extended :=
GPR2.Project.Import.Create
(Get_Raw_Path (F_Path_Name (Ext)),
Get_Source_Reference (Filename, Ext),
Is_Limited => False);
Project.Is_All := F_Is_All (Ext);
end if;
end Parse_Project_Declaration;
-----------------------------
-- Parse_Typed_String_Decl --
-----------------------------
procedure Parse_Typed_String_Decl (N : Typed_String_Decl) is
Name : constant Name_Type :=
Get_Name_Type (F_Type_Id (N));
Values : constant String_Literal_List :=
F_String_Literals (N);
Num_Childs : constant Natural := Children_Count (Values);
Cur_Child : Gpr_Node;
Set : Containers.Value_Set;
List : Containers.Source_Value_List;
begin
if Project.Types.Contains (Name) then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Filename, F_Type_Id (N)),
Message =>
"type """ & String (Name) & """ already defined"));
else
for J in 1 .. Num_Childs loop
Cur_Child := Child (Gpr_Node (Values), J);
if not Cur_Child.Is_Null then
declare
Value : constant Value_Type :=
Get_Value_Type
(Cur_Child.As_String_Literal);
begin
if Set.Contains (Value) then
Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference
(Filename, Cur_Child),
Message =>
'"' & String (Name)
& """ has duplicate value """
& String (Value) & '"'));
else
Set.Insert (Value);
List.Append
(Get_Value_Reference
(Filename, Sloc_Range (Cur_Child), Value));
end if;
end;
end if;
end loop;
Project.Types.Insert
(Name,
GPR2.Project.Typ.Create
(Get_Identifier_Reference
(Filename, Sloc_Range (F_Type_Id (N)), Name), List));
end if;
end Parse_Typed_String_Decl;
---------------------
-- Parse_With_Decl --
---------------------
procedure Parse_With_Decl (N : With_Decl) is
Path_Names : constant String_Literal_List :=
F_Path_Names (N);
Num_Childs : constant Natural := Children_Count (Path_Names);
Cur_Child : Gpr_Node;
begin
for J in 1 .. Num_Childs loop
Cur_Child := Child (Gpr_Node (Path_Names), J);
declare
Path : constant GPR2.Path_Name.Object :=
Get_Raw_Path (Cur_Child.As_String_Literal);
CI : constant GPR2.Project.Import.Set.Cursor :=
Project.Imports.Find (Path);
begin
if GPR2.Project.Import.Set.Has_Element (CI) then
declare
Prev : constant GPR2.Project.Import.Object :=
GPR2.Project.Import.Set.Element (CI);
begin
if Prev.Path_Name = Path then
Messages.Append
(GPR2.Message.Create
(Level => Message.Warning,
Message => "duplicate with clause """
& String (Path.Base_Name) & '"',
Sloc => Get_Source_Reference
(Filename, Cur_Child)));
else
Messages.Append
(GPR2.Message.Create
(Level => Message.Warning,
Message => "duplicate project name """
& String (Path.Base_Name) & '"',
Sloc => Get_Source_Reference
(Filename, Cur_Child)));
Messages.Append
(GPR2.Message.Create
(Level => Message.Warning,
Message => "already in """
& String (Prev.Path_Name.Name)
& '"',
Sloc => Get_Source_Reference
(Filename, Cur_Child)));
end if;
end;
else
Project.Imports.Insert
(GPR2.Project.Import.Create
(Path,
Get_Source_Reference (Filename, Cur_Child),
F_Is_Limited (N)));
end if;
end;
end loop;
end Parse_With_Decl;
begin
case Kind (Node) is
when Gpr_Project_Declaration =>
Parse_Project_Declaration (Node.As_Project_Declaration);
when Gpr_Builtin_Function_Call =>
Parse_Builtin (Node.As_Builtin_Function_Call);
Status := Over;
when Gpr_With_Decl =>
Parse_With_Decl (Node.As_With_Decl);
Status := Over;
when Gpr_Typed_String_Decl =>
Parse_Typed_String_Decl (Node.As_Typed_String_Decl);
Status := Over;
when others =>
null;
end case;
return Status;
end Parser;
begin
Traverse (Root (Unit), Parser'Access);
-- Import --implicit-with options
for PN of Implicit_With loop
if PN /= Filename
and then not Project.Imports.Contains (PN)
then
Project.Imports.Insert
(GPR2.Project.Import.Create
(PN,
Source_Reference.Object
(Source_Reference.Create (Filename.Value, 0, 0)),
Is_Limited => True));
end if;
end loop;
return Project;
end Parse_Stage_1;
---------------
-- Path_Name --
---------------
function Path_Name (Self : Object) return GPR2.Path_Name.Object is
begin
return Self.File;
end Path_Name;
-------------
-- Process --
-------------
procedure Process
(Self : in out Object;
Tree : in out GPR2.Project.Tree.Object;
Context : GPR2.Context.Object;
View : GPR2.Project.View.Object;
Pre_Conf_Mode : Boolean := False;
Ext_Conf_Mode : Boolean := False)
is
type Indexed_Values is record
Index : GPR2.Project.Attribute_Index.Object;
Values : Containers.Source_Value_List;
Single : Boolean := False;
end record
with Dynamic_Predicate =>
not PAI."=" (Indexed_Values.Index, PAI.Undefined)
and then (if Indexed_Values.Single
then Indexed_Values.Values.Length = 1);
package Indexed_Item_Values_Vectors is new Ada.Containers.Vectors
(Index_Type => Positive, Element_Type => Indexed_Values);
type Indexed_Item_Values is record
Filled : Boolean := False;
Attribute_Name : Q_Optional_Attribute_Id := No_Attribute_Id;
Values : Indexed_Item_Values_Vectors.Vector;
end record;
type Item_Values is record
Values : Containers.Source_Value_List;
Single : Boolean := False;
Indexed_Values : Indexed_Item_Values;
end record
with Dynamic_Predicate =>
(if Item_Values.Single then Item_Values.Values.Length <= 1);
-- Indexed_Values is filled only in Get_Attribute_Ref when attribute
-- allows index and index is not provided in the reference.
function To_Set
(Values : Containers.Source_Value_List) return Containers.Value_Set;
-- Creates a set for fast searching from a list of values
Unfilled_Indexed_Values : constant Indexed_Item_Values := (others => <>);
Empty_Item_Values : constant Item_Values := (others => <>);
No_Values : constant Item_Values := (Single => True,
others => <>);
function Missing_Project_Error_Level return Message.Level_Value is
(if Pre_Conf_Mode then Message.Warning else Message.Error);
-- Returns expected level for missing import messages
function Ensure_Source_Loc
(Values : Containers.Source_Value_List;
Sloc : Source_Reference.Object)
return Containers.Source_Value_List;
-- Ensures the values have the proper Source_Loc
function Parser (Node : Gpr_Node'Class) return Visit_Status;
-- Actual parser callback for the project
function Get_Variable_Values
(Node : Variable_Reference) return Item_Values;
-- Parses and returns the values for the given variable/attribute
-- reference.
function Get_Attribute_Index
(Node : Attribute_Reference;
Pack : Package_Id := Project_Level_Scope) return PAI.Object;
-- Gets the attribute index, if any, or PAI.Undefined
function Get_Attribute_Ref
(Project : Name_Type;
Node : Attribute_Reference;
Pack : Package_Id := Project_Level_Scope) return Item_Values;
-- Returns the value for an attribute reference in the given project
-- and possibly the given package.
function Get_Variable_Ref
(Variable : Name_Type;
Source_Ref : Source_Reference.Object;
Project : Optional_Name_Type := No_Name;
Pack : Package_Id := Project_Level_Scope;
From_View : GPR2.Project.View.Object := GPR2.Project.View.Undefined)
return Item_Values;
-- Returns the value for a variable reference in the given project
--
-- Variable: the variable name to retrieve
-- Source_Ref: the location of the variable reference
-- Project: the project name in which to look for the variable
-- if No_Name it lookup is done in From_View
-- Pack: the package in which which to look for the variable. If
-- No_Name it assumes the variable is declared at top-level
-- From_View: the reference view from where to start the search. If
-- set to Undefined search starts from the currently
-- processed view.
function Is_Limited_Import
(Self : Object; Project : Name_Type) return Boolean;
-- Returns True if the given project exists and is made visible through
-- a limited import clause.
function Get_Term_List (Node : Term_List) return Item_Values;
-- Parses a list of value or a single value as found in an attribute.
-- Single is set to True if we have a single value. It is false if we
-- have parsed an expression list. In this later case it does not mean
-- that we are retuning multiple values, just that the expression is a
-- list surrounded by parentheses.
procedure Record_Attribute
(Set : in out PA.Set.Object;
A : PA.Object);
-- Records an attribute into the given set. At the same time we
-- increment the Empty_Attribute_Count if this attribute has an empty
-- value. This is used to check whether we need to reparse the tree.
function Has_Error return Boolean is
(Tree.Log_Messages.Has_Error);
View_Def : GPR2.Project.Definition.Ref renames
Definition.Get (View);
Attrs : GPR2.Project.Attribute.Set.Object renames View_Def.Attrs;
Vars : GPR2.Project.Variable.Set.Object renames View_Def.Vars;
Packs : GPR2.Project.Pack.Set.Map renames View_Def.Packs;
Types : GPR2.Project.Typ.Set.Object renames View_Def.Types;
-- Easy access to the view's attributes, variables, packs and type
-- definitions.
-- Side note: unfortunately, for convenience we need to have View as
-- an "in" parameter, while we obviously need to modify it. Working
-- with "in out" would prevent usage of this function with return
-- values (such as calling
-- Parser.Process (Configuration.Corresponding_View)).
-- View being just a ref, we can copy the ref and then use it to get
-- the rw definition.
Actual : Containers.Filename_Set;
-- Naming exception source filenames from active case alternatives
Case_Values : Containers.Value_List;
-- The case-values to match against the case-item. Each time a case
-- statement is entered the value for the case is prepended into this
-- vector. The first value is then removed when exiting from the case
-- statement. This is to support nested case statements.
-- First character in each element mean is the case-item is open or
-- closed. Other characters contain case value.
In_Pack : Boolean := False;
Pack_Name : Package_Id := Project_Level_Scope;
Pack_Ref : access GPR2.Project.Pack.Object;
-- Package-oriented state, when parsing is in a package In_Pack is
-- set and Pack_Name contains the name of the package and Pack_Ref
-- will point to the view's package object.
Non_Fatal_Error : GPR2.Log.Object;
-- Store non fatal errors that we record while parsing. This avoids
-- stopping the parsing at the first error.
function Is_Open return Boolean is
(Case_Values.Is_Empty
or else (for all CV of Case_Values => CV (1) = '+'));
-- Is_Open is a parsing barrier, it is True when whole parsing can be
-- conducted and False otherwise. When it is False the naming exceptions
-- source filenames collected into Object.Skip_Src container to ignore
-- at the Update_Sources stage. When it is True, the entire parsing
-- processes and naming exception source filenames collected into Actual
-- to remove it from Object.Skip_Src at the end of parsing.
-----------------------
-- Ensure_Source_Loc --
-----------------------
function Ensure_Source_Loc
(Values : Containers.Source_Value_List;
Sloc : Source_Reference.Object) return Containers.Source_Value_List
is
New_List : Containers.Source_Value_List;
begin
for V of Values loop
New_List.Append
(Source_Reference.Value.Object
(Source_Reference.Value.Create
(Sloc => Sloc,
Text => V.Text,
At_Pos => (if V.Has_At_Pos then V.At_Pos else 0),
From_Default => V.Is_From_Default)));
end loop;
return New_List;
end Ensure_Source_Loc;
-------------------------
-- Get_Attribute_Index --
-------------------------
function Get_Attribute_Index
(Node : Attribute_Reference;
Pack : Package_Id := Project_Level_Scope) return PAI.Object
is
Name : constant Attribute_Id :=
+Get_Name_Type (Single_Tok_Node (F_Attribute_Name (Node)));
I_Node : constant Gpr_Node := F_Attribute_Index (Node);
Q_Name : constant Q_Attribute_Id := (Pack, Name);
begin
if not Present (I_Node) then
return PAI.Undefined;
end if;
if I_Node.Kind in Gpr_Others_Designator_Range then
return PAI.I_Others;
end if;
declare
Index : constant Value_Type :=
Get_Value_Type (I_Node.As_Single_Tok_Node);
begin
return
PAI.Create
(Index,
Case_Sensitive =>
(if PRA.Exists (Q_Name)
then PRA.Is_Case_Sensitive (Index,
PRA.Get (Q_Name).Index_Type)
else True));
end;
end Get_Attribute_Index;
-----------------------
-- Get_Attribute_Ref --
-----------------------
function Get_Attribute_Ref
(Project : Name_Type;
Node : Attribute_Reference;
Pack : Package_Id := Project_Level_Scope) return Item_Values
is
use type GPR2.Project.View.Object;
use type PRA.Index_Value_Type;
use type PRA.Value_Kind;
use PAI;
Sloc : constant Source_Reference.Object :=
Get_Source_Reference (Self.File, Node);
Name : constant Attribute_Id :=
+Get_Name_Type
(Single_Tok_Node (F_Attribute_Name (Node)));
Q_Name : constant Q_Attribute_Id := (Pack, Name);
Def : constant PRA.Def := (if PRA.Exists (Q_Name)
then PRA.Get (Q_Name)
else PRA.Def'(others => <>));
Index : constant PAI.Object :=
Get_Attribute_Index (Node, Pack);
Project_View : constant GPR2.Project.View.Object :=
(if Project = "Project" or else Project = View.Name
then View
else Process.View.View_For (Project));
Attr : PA.Object;
Indexed_Values : Indexed_Item_Values := Unfilled_Indexed_Values;
procedure Fill_Indexed_Values
(View : GPR2.Project.View.Object;
Pack : Package_Id);
-- fill Indexed_Values if Index is undefined and Q_Name allows Index
-------------------------
-- Fill_Indexed_Values --
-------------------------
procedure Fill_Indexed_Values
(View : GPR2.Project.View.Object;
Pack : Package_Id)
is
Q_Name : constant Q_Attribute_Id := (Pack, Name);
use Indexed_Item_Values_Vectors;
use PRA;
begin
if Index = PAI.Undefined
and then Def.Index_Type /= PRA.No_Index
then
Indexed_Values.Filled := True;
Indexed_Values.Attribute_Name := Q_Name;
if View.Is_Defined then
for Attribute of View.Attributes (Q_Name) loop
Indexed_Values.Values.Append
((Index => Attribute.Index,
Values => Attribute.Values,
Single => Attribute.Kind = PRA.Single), 1);
end loop;
end if;
end if;
end Fill_Indexed_Values;
begin
-- We do not want to have a reference to a limited import, we do not
-- check when a special project reference is found Project'Name or
-- Config'Name.
if not Is_Builtin_Project_Name (Project)
and then Is_Limited_Import (Self, Project)
then
Tree.Log_Messages.Append
(Message.Create
(Message.Error,
"cannot have a reference to a limited project",
Get_Source_Reference (Self.File, Node)));
return No_Values;
end if;
-- For a project/attribute reference we need to check the attribute
-- definition to know whether the result is multi-valued or not.
if not PRA.Exists (Q_Name) then
if not In_Pack
or else PRP.Exists (Pack_Name)
then
-- Ignore case where we know nothing about the currently parsed
-- package.
-- Unknown package name
if not PRP.Exists (Q_Name.Pack) then
Tree.Log_Messages.Append
(Message.Create
(Message.Error,
"unknown package or project """ &
Image (Q_Name.Pack) & '"',
Get_Source_Reference (Self.File, Node)));
else
Tree.Log_Messages.Append
(Message.Create
(Message.Error,
"undefined attribute """ & Image (Q_Name) &
'"',
Get_Source_Reference (Self.File, Node)));
end if;
end if;
return No_Values;
end if;
if Index.Is_Defined and then Def.Index_Type = PRA.No_Index then
Tree.Log_Messages.Append
(Message.Create
(Message.Error,
"attribute """ & Image (Q_Name) & """ cannot have index",
Get_Source_Reference (Self.File, Node)));
return No_Values;
end if;
-- If the attribute is not found or not yet resolved we need
-- to ensure that the Values list respect the post
-- condition. That is, a Single result must contain a single
-- element.
if Project_View.Is_Defined then
Attr := Project_View.Attribute
(Name => (Pack, Name), Index => Index);
Fill_Indexed_Values (Project_View, Pack);
-- Some top-level attribute specific processing
if Pack = Project_Level_Scope then
if Attr.Is_Defined then
if Project_View = View
and then Def.Is_Toolchain_Config
and then not Attr.Is_Frozen
then
Attr.Freeze;
Attrs.Include (Attr);
end if;
elsif Indexed_Values.Filled
and then not Indexed_Values.Values.Is_Empty
then
-- Full associative array values filled, no default to
-- create.
null;
-- Special case for built-in Canonical_Target and for
-- Runtime, that is at the minimum empty
elsif Name = PRA.Canonical_Target.Attr then
-- Project'Target case
Attr := PA.Create
(Get_Attribute_Reference
(Self.Path_Name, Sloc_Range (Node),
(Project_Level_Scope, Name)),
Value => Get_Value_Reference
(Value_Not_Empty (Tree.Target (Canonical => True)),
Sloc),
Default => True,
Frozen => True);
elsif Name = PRA.Runtime.Attr then
if Index /= PAI.Undefined then
-- Project'Runtime (<lang>)
Attr := PA.Create
(Get_Attribute_Reference
(Self.Path_Name,
Sloc_Range (Node),
(Project_Level_Scope, Name)),
Index => Index,
Value => Get_Value_Reference ("", Sloc),
Default => True,
Frozen => True);
else
Indexed_Values.Attribute_Name :=
(Project_Level_Scope, Name);
Indexed_Values.Filled := True;
end if;
end if;
end if;
if not Attr.Is_Defined
and then not Indexed_Values.Filled
and then Def.Value /= PRA.Single
then
-- When no default is defined, lists are created empty.
-- This allows the common pattern:
-- My_List := ("new", "values") & Project'My_List
Attr := GPR2.Project.Attribute.Create
(Source_Reference.Attribute.Object
(Source_Reference.Attribute.Create
(Source_Reference.Builtin,
(Project_Level_Scope, Name))),
Index => Index,
Values =>
Containers.Source_Value_Type_List.Empty_Vector,
Default => True);
end if;
if not Attr.Is_Defined then
if Pack /= Project_Level_Scope
and then not Project_View.Has_Package (Pack)
then
Tree.Log_Messages.Append
(Message.Create
(Message.Error,
"package """ & Image (Pack)
& """ not declared in project """
& String (Project) & '"',
Get_Source_Reference (Self.File, Node)));
elsif not Indexed_Values.Filled
or else Indexed_Values.Values.Is_Empty
then
Tree.Log_Messages.Append
(Message.Create
(Message.Error,
"undefined attribute """ &
(if Pack = Project_Level_Scope then ""
else Image (Pack) & "'") &
Image (Name) &
(if Index /= PAI.Undefined
then " (""" & Index.Text & """)"
else "") &
'"',
Get_Source_Reference (Self.File, Node)));
end if;
end if;
elsif Project /= "Config" then
-- Config project can be undefined at this stage
Tree.Log_Messages.Append
(Message.Create
(Missing_Project_Error_Level,
"undefined project or package """ & String (Project) &
'"',
Get_Source_Reference (Self.File, Node)));
end if;
return Result : Item_Values do
Result.Indexed_Values := Indexed_Values;
if Attr.Is_Defined then
Result.Values := Ensure_Source_Loc (Attr.Values, Sloc);
Result.Single := Attr.Kind = PRA.Single;
else
Result.Single := PRA.Get (Q_Name).Value = PRA.Single;
if Result.Single then
Result.Values :=
GPR2.Containers.Source_Value_Type_List.To_Vector
(New_Item => GPR2.Source_Reference.Value.Object
(GPR2.Source_Reference.Value.Create
(Sloc, GPR2.No_Value)),
Length => 1);
end if;
end if;
end return;
end Get_Attribute_Ref;
-------------------
-- Get_Term_List --
-------------------
function Get_Term_List (Node : Term_List) return Item_Values is
Result : Item_Values;
-- The list of values returned by Get_Term_List
New_Item : Boolean := True;
Force_Append : Boolean := False;
-- When True new value are always added to list
function Parser (Node : Gpr_Node'Class) return Visit_Status;
procedure Record_Value (Value : Source_Reference.Value.Object)
with Post => Result.Values.Length'Old <= Result.Values.Length;
-- Record Value into Result, either add it as a new value in the list
-- (Single = False) or append the value to the current one.
procedure Record_Values (Values : Item_Values);
-- Same as above but for multiple values
------------
-- Parser --
------------
function Parser (Node : Gpr_Node'Class) return Visit_Status is
Status : Visit_Status := Into;
procedure Handle_String (Node : String_Literal)
with Pre => Present (Node);
-- A simple static string
procedure Handle_String_At (Node : String_Literal_At)
with Pre => Present (Node);
-- A simple static string with "at" number.
-- The number is retrieved and used later in Parse_Attribute_Decl.
procedure Handle_Variable (Node : Variable_Reference)
with Pre => Present (Node);
-- A variable
procedure Handle_Builtin (Node : Builtin_Function_Call)
with Pre => Present (Node);
-- A built-in
function Terms_Parser (Node : Gpr_Node'Class) return Visit_Status;
-- Parser for the terms tree
--------------------
-- Handle_Builtin --
--------------------
procedure Handle_Builtin (Node : Builtin_Function_Call) is
procedure Handle_External_Variable
(Node : Builtin_Function_Call);
-- An external variable : External ("VAR"[, "VALUE"])
procedure Handle_External_As_List_Variable
(Node : Builtin_Function_Call);
-- An external_as_list variable :
-- External_As_List ("VAR", "SEP")
procedure Handle_Split (Node : Builtin_Function_Call);
-- Handle the Split built-in : Split ("STR1", "SEP")
procedure Handle_Item_At (Node : Builtin_Function_Call);
-- Handle the Item_At build-in : Item_At (List, Index)
procedure Handle_Filter_Out (Node : Builtin_Function_Call);
-- Handle the Filter_Out build-in : Filter_Out (List, "REGEX")
generic
with function Transform
(Value : Value_Type) return Value_Type;
procedure Handle_Generic1 (Node : Builtin_Function_Call);
-- A generic procedure call Transform for the single value or
-- for each values in a list.
generic
Name : String;
with function Transform_V
(Value1, Value2 : Value_Type) return Value_Type;
with function Transform_L
(List1, List2 : Containers.Source_Value_List)
return Containers.Source_Value_List;
procedure Handle_Generic2 (Node : Builtin_Function_Call);
-- A generic procedure call Transform for the single value or
-- a list.
generic
Name : String;
with function Transform
(Value1, Pattern : Value_Type) return Value_Type;
procedure Handle_Generic2_LV (Node : Builtin_Function_Call);
-- A generic procedure call Transform for the single value or
-- for each values in a list.
procedure Handle_Match (Node : Builtin_Function_Call);
-- Handle the Match built-in :
-- Match ("STR", "PATTERN"[, "REPL"])
--------------------------------------
-- Handle_External_As_List_Variable --
--------------------------------------
procedure Handle_External_As_List_Variable
(Node : Builtin_Function_Call)
is
function Get_Parameter (Index : Positive) return Value_Type;
-- Returns parameter by Index
Parameters : constant Term_List_List :=
F_Terms (F_Parameters (Node));
-------------------
-- Get_Parameter --
-------------------
function Get_Parameter
(Index : Positive) return Value_Type
is
Ignore : Boolean;
begin
return Get_String_Literal
(Child (Parameters, Index), Error => Ignore);
end Get_Parameter;
Var : constant Name_Type := Name_Type (Get_Parameter (1));
Sep : constant Value_Type := Get_Parameter (2);
begin
Result.Single := False;
for V of Builtin.External_As_List (Context, Var, Sep) loop
New_Item := True;
Record_Value
(Get_Value_Reference
(V, Get_Source_Reference (Self.File, Parameters)));
end loop;
-- Skip all child nodes, we do not want to parse a second
-- time the string_literal.
Status := Over;
end Handle_External_As_List_Variable;
------------------------------
-- Handle_External_Variable --
------------------------------
procedure Handle_External_Variable
(Node : Builtin_Function_Call)
is
Parameters : constant Term_List_List :=
F_Terms (F_Parameters (Node));
Error : Boolean;
Var : constant Name_Type :=
Name_Type
(Get_String_Literal
(Child (Parameters, 1), Error));
Value_Node : constant Term_List :=
Child (Parameters, 2).As_Term_List;
begin
if Present (Value_Node) then
-- External not in the context but has a default value
declare
Values : constant Item_Values :=
Get_Term_List (Value_Node);
begin
if Values.Single then
Record_Value
(Builtin.External
(Context,
Var, Values.Values.First_Element));
else
Tree.Log_Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference
(Self.File, Parameters),
Message =>
"external default parameter must be a "
& "simple string"));
end if;
end;
else
Record_Value
(Builtin.External
(Context, Var,
Sloc => Get_Source_Reference
(Self.File, Parameters)));
end if;
-- Skip all child nodes, we do not want to parse a second
-- time the string_literal.
Status := Over;
exception
when E : Project_Error =>
if not Ext_Conf_Mode then
Tree.Log_Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Self.File, Parameters),
Message => Exception_Message (E)));
end if;
Record_Value
(Get_Value_Reference
("", Get_Source_Reference (Self.File, Parameters)));
Status := Over;
end Handle_External_Variable;
-----------------------
-- Handle_Filter_Out --
-----------------------
procedure Handle_Filter_Out (Node : Builtin_Function_Call) is
Parameters : constant Term_List_List :=
F_Terms (F_Parameters (Node));
P1_Node : constant Term_List :=
Child (Parameters, 1).As_Term_List;
P2_Node : constant Term_List :=
Child (Parameters, 2).As_Term_List;
begin
declare
P1 : constant Item_Values := Get_Term_List (P1_Node);
P2 : constant Item_Values := Get_Term_List (P2_Node);
begin
if P1.Single then
Non_Fatal_Error.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Self.File, Node),
Message =>
"first parameter of Filter_Out"
& " built-in must be a list"));
end if;
-- Check that 2nd parameter is a simple value
if not P2.Single then
Non_Fatal_Error.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Self.File, Node),
Message =>
"second parameter of Filter_Out"
& " built-in must be a value"));
else
declare
use GNAT;
Pattern : constant Value_Type :=
P2.Values.First_Element.Text;
Regex : constant Regexp.Regexp :=
Regexp.Compile (Pattern);
L : constant Containers.Source_Value_List :=
Builtin.Filter_Out (P1.Values, Regex);
begin
for V of L loop
New_Item := True;
Record_Value
(Get_Value_Reference
(V.Text,
Get_Source_Reference
(Self.File, Parameters)));
end loop;
Result.Single := False;
end;
end if;
end;
Status := Over;
end Handle_Filter_Out;
---------------------
-- Handle_Generic1 --
---------------------
procedure Handle_Generic1 (Node : Builtin_Function_Call) is
Parameters : constant Term_List_List :=
F_Terms (F_Parameters (Node));
Value_Node : constant Term_List :=
Child (Parameters, 1).As_Term_List;
begin
declare
Values : constant Item_Values :=
Get_Term_List (Value_Node);
begin
if Values.Single then
Record_Value
(Get_Value_Reference
(Transform (Values.Values.First_Element.Text),
Get_Source_Reference
(Self.File, Parameters)));
else
for V of Values.Values loop
New_Item := True;
Record_Value
(Get_Value_Reference
(Transform (V.Text),
Get_Source_Reference
(Self.File, Parameters)));
end loop;
Result.Single := False;
end if;
end;
-- Skip all child nodes, we do not want to parse a second
-- time the string_literal.
Status := Over;
end Handle_Generic1;
---------------------
-- Handle_Generic2 --
---------------------
procedure Handle_Generic2 (Node : Builtin_Function_Call) is
Parameters : constant Term_List_List :=
F_Terms (F_Parameters (Node));
P1_Node : constant Term_List :=
Child (Parameters, 1).As_Term_List;
P2_Node : constant Term_List :=
Child (Parameters, 2).As_Term_List;
begin
declare
P1 : constant Item_Values := Get_Term_List (P1_Node);
P2 : constant Item_Values := Get_Term_List (P2_Node);
begin
if P1.Single xor P2.Single then
Non_Fatal_Error.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Self.File, Node),
Message =>
"parameters of " & Name
& " built-in must be of the same type"));
end if;
if P1.Single then
Record_Value
(Get_Value_Reference
(Transform_V
(P1.Values.First_Element.Text,
P2.Values.First_Element.Text),
Get_Source_Reference
(Self.File, Parameters)));
else
declare
L : constant Containers.Source_Value_List :=
Transform_L (P1.Values, P2.Values);
begin
for V of L loop
New_Item := True;
Record_Value
(Get_Value_Reference
(V.Text,
Get_Source_Reference
(Self.File, Parameters)));
end loop;
end;
Result.Single := False;
end if;
end;
-- Skip all child nodes, we do not want to parse a second
-- time the string_literal.
Status := Over;
end Handle_Generic2;
------------------------
-- Handle_Generic2_LV --
------------------------
procedure Handle_Generic2_LV (Node : Builtin_Function_Call) is
Parameters : constant Term_List_List :=
F_Terms (F_Parameters (Node));
P1_Node : constant Term_List :=
Child (Parameters, 1).As_Term_List;
P2_Node : constant Term_List :=
Child (Parameters, 2).As_Term_List;
begin
declare
P1 : constant Item_Values := Get_Term_List (P1_Node);
P2 : constant Item_Values := Get_Term_List (P2_Node);
begin
if not P2.Single then
Non_Fatal_Error.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Self.File, Node),
Message =>
"second parameters of " & Name
& " built-in must be a simple value"));
end if;
if P1.Single then
Record_Value
(Get_Value_Reference
(Transform
(P1.Values.First_Element.Text,
P2.Values.First_Element.Text),
Get_Source_Reference
(Self.File, Parameters)));
else
for V of P1.Values loop
declare
R : constant String :=
Transform
(V.Text, P2.Values.First_Element.Text);
begin
New_Item := True;
-- The result is empty, remove from the list
if R /= "" then
Record_Value
(Get_Value_Reference
(Transform
(V.Text,
P2.Values.First_Element.Text),
Get_Source_Reference
(Self.File, Parameters)));
end if;
end;
end loop;
Result.Single := False;
end if;
end;
-- Skip all child nodes, we do not want to parse a second
-- time the string_literal.
Status := Over;
end Handle_Generic2_LV;
--------------------
-- Handle_Item_At --
--------------------
procedure Handle_Item_At (Node : Builtin_Function_Call) is
use type Strings.Maps.Character_Set;
Parameters : constant Term_List_List :=
F_Terms (F_Parameters (Node));
P1_Node : constant Term_List :=
Child (Parameters, 1).As_Term_List;
P2_Node : constant Term_List :=
Child (Parameters, 2).As_Term_List;
begin
declare
P1 : constant Item_Values := Get_Term_List (P1_Node);
P2 : constant Item_Values := Get_Term_List (P2_Node);
begin
if P1.Single then
Non_Fatal_Error.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Self.File, Node),
Message =>
"first parameter of Index_At"
& " built-in must be a list"));
end if;
-- Check that 2nd parameter is a simple number
if not P2.Single
or else
Strings.Fixed.Index
(P2.Values.First_Element.Text,
Strings.Maps.Constants.Decimal_Digit_Set
or Strings.Maps.To_Set ("-"),
Strings.Outside) /= 0
then
Non_Fatal_Error.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Self.File, Node),
Message =>
"second parameter of Index_At"
& " built-in must be a number"));
else
declare
Index : constant Integer :=
Integer'Value
(P2.Values.First_Element.Text);
begin
if abs (Index) > Positive (P1.Values.Length)
or else Index = 0
then
Non_Fatal_Error.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Self.File, Node),
Message =>
"second parameter of Index_At"
& " built-in out of bound"));
else
Record_Value
(Get_Value_Reference
(Builtin.Item_At (P1.Values, Index),
Source_Reference.Object
(P1.Values.First_Element)));
end if;
end;
end if;
end;
Status := Over;
end Handle_Item_At;
------------------
-- Handle_Match --
------------------
procedure Handle_Match (Node : Builtin_Function_Call) is
Parameters : constant Term_List_List :=
F_Terms (F_Parameters (Node));
Str : constant Item_Values :=
Get_Term_List (Child (Parameters, 1).As_Term_List);
Pat : constant Item_Values :=
Get_Term_List (Child (Parameters, 2).As_Term_List);
Rep : constant Item_Values :=
(if Parameters.Children_Count = 3
then Get_Term_List
(Child (Parameters, 3).As_Term_List)
else Empty_Item_Values);
begin
if not Pat.Single then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Get_Source_Reference
(Self.File, Child (Parameters, 2)),
Message => "Match pattern parameter must be a"
& " string"));
elsif Rep /= Empty_Item_Values and then not Rep.Single then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Get_Source_Reference
(Self.File, Child (Parameters, 2)),
Message => "Match replacement parameter must be a"
& " string"));
else
declare
use GNAT;
Pattern : constant Value_Type :=
Pat.Values.First_Element.Text;
Regex : constant Regpat.Pattern_Matcher :=
Regpat.Compile (Pattern);
Repl : constant Value_Type :=
(if Rep = Empty_Item_Values
then ""
else Rep.Values.First_Element.Text);
begin
if Str.Single then
declare
R : constant String :=
Builtin.Match
(Str.Values.First_Element.Text,
Pattern, Regex, Repl);
begin
if R = "" then
-- No match, result is an empty value
Record_Value
(Get_Value_Reference
("",
Get_Source_Reference
(Self.File, Parameters)));
else
Record_Value
(Get_Value_Reference
(R,
Source_Reference.Object
(Str.Values.First_Element)));
end if;
end;
else
-- First parameter is a list, do the match on all
-- list items, if no match remove from the list.
for V of Str.Values loop
declare
R : constant String :=
Builtin.Match
(V.Text, Pattern, Regex, Repl);
begin
New_Item := True;
if R /= "" then
Record_Value
(Get_Value_Reference
(R,
Source_Reference.Object
(Str.Values.First_Element)));
end if;
end;
end loop;
Result.Single := False;
end if;
end;
end if;
Status := Over;
exception
when E : GNAT.Regpat.Expression_Error =>
if not Ext_Conf_Mode then
Tree.Log_Messages.Append
(GPR2.Message.Create
(Level => Message.Error,
Sloc =>
Get_Source_Reference (Self.File, Parameters),
Message => Exception_Message (E)));
end if;
Record_Value
(Get_Value_Reference
("", Get_Source_Reference (Self.File, Parameters)));
Status := Over;
end Handle_Match;
------------------
-- Handle_Split --
------------------
procedure Handle_Split (Node : Builtin_Function_Call) is
Parameters : constant Term_List_List :=
F_Terms (F_Parameters (Node));
Str : constant Item_Values :=
Get_Term_List (Child (Parameters, 1).As_Term_List);
Sep : constant Item_Values :=
Get_Term_List (Child (Parameters, 2).As_Term_List);
begin
if not Str.Single then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Get_Source_Reference
(Self.File, Child (Parameters, 1)),
Message => "Split first parameter must be a"
& " string"));
elsif not Sep.Single then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Get_Source_Reference
(Self.File, Child (Parameters, 2)),
Message => "Split separator parameter must be a"
& " string"));
else
declare
Item : constant Value_Type :=
Str.Values.First_Element.Text;
Delim : constant Value_Type :=
Sep.Values.First_Element.Text;
begin
if Delim = "" then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Source_Reference.Object
(Sep.Values.First_Element),
Message => "Split separator parameter must"
& " not be empty"));
elsif Item /= "" then
for V of Builtin.Split (Item, Delim) loop
New_Item := True;
Record_Value
(Get_Value_Reference
(V,
Source_Reference.Object
(Str.Values.First_Element)));
end loop;
end if;
end;
end if;
-- Skip all child nodes, we do not want to parse a second
-- time the string_literal.
Status := Over;
end Handle_Split;
procedure Handle_Upper is
new Handle_Generic1 (Transform => Builtin.Upper);
-- Handle the Upper built-in : Upper ("STR") or Upper (VAR)
procedure Handle_Lower is
new Handle_Generic1 (Transform => Builtin.Lower);
-- Handle the Lower built-in : Lower ("STR") or Lower (VAR)
procedure Handle_Default is new Handle_Generic2
("Default",
Transform_V => Builtin.Default,
Transform_L => Builtin.Default);
-- Handle the Default built-in : Default ("STR", "def")
procedure Handle_Alternative is new Handle_Generic2
("Alternative",
Transform_V => Builtin.Alternative,
Transform_L => Builtin.Alternative);
-- Handle the Alternative built-in :
-- Alternative ("STR", "def")
procedure Handle_Remove_Prefix is new Handle_Generic2_LV
("Remove_Prefix",
Transform => Builtin.Remove_Prefix);
-- Handle the Remove_Prefix built-in :
-- Remove_Prefix ("STR", "def")
procedure Handle_Remove_Suffix is new Handle_Generic2_LV
("Remove_Suffix",
Transform => Builtin.Remove_Suffix);
-- Handle the Remove_Prefix built-in :
-- Remove_Suffix ("STR", "def")
Function_Name : constant Name_Type :=
Get_Name_Type (F_Function_Name (Node));
begin
if Function_Name = "external" then
Handle_External_Variable (Node);
elsif Function_Name = "external_as_list" then
Result.Single := False;
Handle_External_As_List_Variable (Node);
elsif Function_Name = "split" then
Result.Single := False;
Handle_Split (Node);
elsif Function_Name = "lower" then
Handle_Lower (Node);
elsif Function_Name = "upper" then
Handle_Upper (Node);
elsif Function_Name = "match" then
Handle_Match (Node);
elsif Function_Name = "default" then
Handle_Default (Node);
elsif Function_Name = "alternative" then
Handle_Alternative (Node);
elsif Function_Name = "item_at" then
Handle_Item_At (Node);
elsif Function_Name = "filter_out" then
Handle_Filter_Out (Node);
elsif Function_Name = "remove_prefix" then
Handle_Remove_Prefix (Node);
elsif Function_Name = "remove_suffix" then
Handle_Remove_Suffix (Node);
end if;
end Handle_Builtin;
-------------------
-- Handle_String --
-------------------
procedure Handle_String (Node : String_Literal) is
begin
Record_Value
(Get_Value_Reference
(Unquote (Value_Type (To_UTF8 (Node.Text))),
Get_Source_Reference (Self.File, Node)));
end Handle_String;
----------------------
-- Handle_String_At --
----------------------
procedure Handle_String_At (Node : String_Literal_At) is
At_Lit : constant Num_Literal := Node.F_At_Lit;
begin
Record_Value
(Get_Value_Reference
(Unquote (Value_Type (To_UTF8 (Node.F_Str_Lit.Text))),
Get_Source_Reference (Self.File, Sloc_Range (Node)),
At_Pos =>
(if At_Lit = No_Gpr_Node then 0
else Unit_Index'Wide_Wide_Value (At_Lit.Text))));
Status := Over;
-- Stop here to avoid parsing into the String_Literal child
end Handle_String_At;
---------------------
-- Handle_Variable --
---------------------
procedure Handle_Variable (Node : Variable_Reference) is
Values : constant Item_Values := Get_Variable_Values (Node);
begin
Record_Values (Values);
Status := Over;
end Handle_Variable;
------------------
-- Terms_Parser --
------------------
function Terms_Parser
(Node : Gpr_Node'Class) return Visit_Status is
begin
case Kind (Node) is
when Gpr_Terms =>
null;
when others =>
return Parser (Node);
end case;
return Into;
end Terms_Parser;
begin
case Kind (Node) is
when Gpr_Terms =>
if Result.Values.Length /= 0 and then Result.Single then
Tree.Log_Messages.Append
(Message.Create
(Message.Error,
"literal string list cannot appear in a string",
Get_Source_Reference (Self.File, Node)));
end if;
-- We are opening not a single element but an expression
-- list.
Result.Single := False;
-- Handle '&' found in ("A" & "B", "C") as value extension
Force_Append := False;
-- Parse Terms tree
Traverse (Gpr_Node (Node), Terms_Parser'Access);
-- Handle '&' found in () & "A as values list append
Force_Append := True;
Status := Over;
when Gpr_Term_List =>
-- A new value parsing is starting
New_Item := True;
when Gpr_String_Literal =>
Handle_String (Node.As_String_Literal);
when Gpr_String_Literal_At =>
Handle_String_At (Node.As_String_Literal_At);
when Gpr_Variable_Reference =>
Handle_Variable (Node.As_Variable_Reference);
when Gpr_Builtin_Function_Call =>
Handle_Builtin (Node.As_Builtin_Function_Call);
when others =>
null;
end case;
return Status;
end Parser;
------------------
-- Record_Value --
------------------
procedure Record_Value (Value : Source_Reference.Value.Object) is
begin
if New_Item or else Force_Append then
Result.Values.Append (Value);
New_Item := False;
else
declare
Last : constant Containers.Extended_Index :=
Result.Values.Last_Index;
Old_Value : constant Source_Reference.Value.Object :=
Result.Values (Last);
New_Value : constant Value_Type :=
Old_Value.Text & Value.Text;
begin
Result.Values.Replace_Element
(Last,
Get_Value_Reference
(New_Value,
Source_Reference.Object (Value)));
end;
end if;
end Record_Value;
-------------------
-- Record_Values --
-------------------
procedure Record_Values (Values : Item_Values) is
use type Project.Attribute_Index.Object;
function Has_Index (Index : Attribute_Index.Object) return Boolean
is (for some V of Result.Indexed_Values.Values
=> V.Index = Index);
begin
-- If we already have a list of indexed values, or If we already
-- have one indexed values and we have new indexed values and if
-- those are having different index then we want to append to the
-- list.
--
-- It covers the following case:
--
-- for Attr use Pck'Attr & Pck'Attr;
--
if Result.Indexed_Values.Values.Length > 1
or else
(Result.Indexed_Values.Values.Length > 0
and then Values.Indexed_Values.Values.Length > 0
and then Values.Indexed_Values.Values.First_Element.Index
/= Result.Indexed_Values.Values.First_Element.Index)
then
for V of Values.Indexed_Values.Values loop
-- Issue a lint-level message if we are going to overwrite
-- an already existing value for the given index.
if Has_Index (V.Index) then
Tree.Log_Messages.Append
(Message.Create
(Message.Lint,
"duplicate indexed attribute found for "
& V.Index.Text,
Source_Reference.Object (V.Index)));
end if;
Result.Indexed_Values.Values.Append (V);
end loop;
else
Result.Indexed_Values := Values.Indexed_Values;
end if;
for V of Values.Values loop
New_Item := New_Item or else not Values.Single;
Record_Value (V);
end loop;
-- If we add a list, then the final value must be a list
if not Values.Single and then Result.Single then
Result.Single := False;
-- When parsing a list '&' should be used as append to list
-- ("a") & "b" => ("a", "b")
Force_Append := True;
end if;
end Record_Values;
begin
Result.Single := True;
Traverse (Gpr_Node (Node), Parser'Access);
return Result;
end Get_Term_List;
----------------------
-- Get_Variable_Ref --
----------------------
function Get_Variable_Ref
(Variable : Name_Type;
Source_Ref : Source_Reference.Object;
Project : Optional_Name_Type := No_Name;
Pack : Package_Id := Project_Level_Scope;
From_View : GPR2.Project.View.Object := GPR2.Project.View.Undefined)
return Item_Values
is
use type PRA.Value_Kind;
procedure Error (Msg : String := "") with Inline;
-- Emit an error message that starts with
-- "variable VARIABLE undefined". If Msg is not the empty string then
-- append "(MSG)".
function Get_Pack_Var
(View : GPR2.Project.View.Object;
Pack : Package_Id;
Name : Name_Type) return Item_Values with Inline;
-- Returns the variable value Pack.Name. If not found an error added
function Try_Visible_In
(View : GPR2.Project.View.Object) return Item_Values;
-- Try to find variable either in extended view or in parent one
-----------
-- Error --
-----------
procedure Error (Msg : String := "") is
begin
Tree.Log_Messages.Append
(Message.Create
(Message.Error,
(if Msg /= "" then Msg
else "undefined variable """ &
(if Project = No_Name then ""
else String (Project) & ".") &
(if Pack = Project_Level_Scope then ""
else Image (Pack) & ".") &
String (Variable) & '"'),
Source_Ref));
end Error;
------------------
-- Get_Pack_Var --
------------------
function Get_Pack_Var
(View : GPR2.Project.View.Object;
Pack : Package_Id;
Name : Name_Type) return Item_Values is
begin
if View.Has_Variables (Pack, Name) then
declare
V : constant GPR2.Project.Variable.Object :=
View.Variable (Pack, Name);
begin
return (Values => Ensure_Source_Loc (V.Values, Source_Ref),
Single => V.Kind = PRA.Single,
others => <>);
end;
else
Error;
return No_Values;
end if;
end Get_Pack_Var;
--------------------
-- Try_Visible_In --
--------------------
function Try_Visible_In
(View : GPR2.Project.View.Object) return Item_Values
is
Result : Item_Values;
Parent : GPR2.Project.View.Object;
begin
if View.Is_Extending then
Result := Get_Variable_Ref
(Variable => Variable,
From_View => View.Extended_Root,
Source_Ref => Source_Ref);
if Result /= No_Values then
return Result;
end if;
end if;
if View.Check_Parent (Parent) then
Result := Get_Variable_Ref
(Variable => Variable,
From_View => Parent,
Source_Ref => Source_Ref);
if Result /= No_Values then
return Result;
end if;
end if;
Error;
return No_Values;
end Try_Visible_In;
begin
if Project /= No_Name then
-- We have a reference to subproject, resolve it and recurse
declare
Var_View : constant GPR2.Project.View.Object :=
(if From_View.Is_Defined
then From_View.View_For (Project)
else View.View_For (Project));
begin
if Var_View.Is_Defined then
return Get_Variable_Ref
(Variable => Variable,
Pack => Pack,
From_View => Var_View,
Source_Ref => Source_Ref);
elsif To_Lower (Project) = "project" then
-- If no project called project is defined then assume
-- project is the current project.
return Get_Variable_Ref
(Variable => Variable,
Pack => Pack,
From_View => From_View,
Source_Ref => Source_Ref);
else
Tree.Log_Messages.Append
(Message.Create
(Missing_Project_Error_Level,
"undefined project " & String (Project) & '"',
Source_Ref));
end if;
end;
elsif not From_View.Is_Defined then
-- Working from the current view that is processed. In that case
-- use Packs and Vars variables as the view has not been updated
-- yet.
if Pack = Project_Level_Scope then
-- Look first if the variable is declared explicitly in the
-- project itself otherwise iterate on the extended project
-- chain.
if Vars.Contains (Variable) then
return (Values =>
Ensure_Source_Loc
(Vars (Variable).Values, Source_Ref),
Single => Vars (Variable).Kind = PRA.Single,
others => <>);
else
return Try_Visible_In (View);
end if;
else
if In_Pack and then Pack = Pack_Name then
-- If in the package currently processed use Pack_Vars to
-- find the value.
if Pack_Ref.Vars.Contains (Variable) then
return
(Values =>
Ensure_Source_Loc
(Pack_Ref.Vars (Variable).Values, Source_Ref),
Single => Pack_Ref.Vars (Variable).Kind = PRA.Single,
others => <>);
else
Error;
end if;
else
-- Otherwise search into the already parsed packages
if View.Has_Package (Pack) then
return Get_Pack_Var (View, Pack, Variable);
else
Error
("undefined project or package """ & Image (Pack)
& '"');
end if;
end if;
end if;
else
-- From_View contains the variable we are looking at
if Pack = Project_Level_Scope then
if From_View.Has_Variables (Variable) then
declare
V : constant GPR2.Project.Variable.Object :=
From_View.Variable (Variable);
begin
return (Values =>
Ensure_Source_Loc (V.Values, Source_Ref),
Single => V.Kind = PRA.Single,
others => <>);
end;
else
return Try_Visible_In (From_View);
end if;
elsif From_View.Has_Package (Pack) then
return Get_Pack_Var (From_View, Pack, Variable);
else
Error ("undefined package """ & Image (Pack) & '"');
end if;
end if;
return No_Values;
end Get_Variable_Ref;
-------------------------
-- Get_Variable_Values --
-------------------------
function Get_Variable_Values
(Node : Variable_Reference) return Item_Values
is
-- A reference to variable/attribute values has the following format:
-- prj_name[.pack_name[.var_name]]['Attribute]
Var_Name : constant Identifier_List := F_Variable_Name (Node);
Att_Ref : constant Attribute_Reference := F_Attribute_Ref (Node);
Source_Ref : constant Source_Reference.Object :=
Get_Source_Reference (Self.File, Node);
function Project_Name_Length
(List : Identifier_List) return Natural;
-- Returns the last Index in list of the project name part. can be
-- 0 if List not starting with a project name
-------------------------
-- Project_Name_Length --
-------------------------
function Project_Name_Length
(List : Identifier_List) return Natural
is
Last : constant Natural :=
Children_Count (List) -
(if Present (Att_Ref) then 0 else 1);
-- if not attribute reference last segment is variable name
function Is_Valid_Project_Name (Name : Name_Type) return Boolean is
(Process.View.View_For (Name).Is_Defined
or else Self.Imports.Contains (Name)
or else (Self.Extended.Is_Defined
and then Self.Extended.Path_Name.Base_Name = Name)
or else Is_Builtin_Project_Name (Name)
or else Name_Type (To_String (Self.Name)) = Name);
begin
if Last >= 1
and then Is_Valid_Project_Name (Get_Name_Type (List, 1, Last))
then
return Last;
elsif Last >= 2
and then Is_Valid_Project_Name
(Get_Name_Type (List, 1, Last - 1))
then
return Last - 1;
end if;
return 0;
end Project_Name_Length;
Var_Name_Length : constant Positive := Children_Count (Var_Name);
-- Number of segment of variable name. cannot be 0 as var_name list
-- empty are not allowed in gpr_parser language.
Prj_Name_Length : constant Natural := Project_Name_Length (Var_Name);
-- Number of segment of project name part
begin
if Present (Att_Ref) then
-- This is a reference to an attribute
-- supported formats are prj'attr, pack'attr or prj.pack'attr
-- prj can be a child project (root.child)
return Get_Attribute_Ref
(Project => (if Prj_Name_Length = 0
then (if Var_Name_Length = 1
then Name_Type (To_String (Self.Name))
else Get_Name_Type
(Var_Name, 1, Var_Name_Length - 1))
else Get_Name_Type (Var_Name, 1, Prj_Name_Length)),
Pack => (if Prj_Name_Length = Var_Name_Length
then Project_Level_Scope
else +Get_Name_Type
(Var_Name, Var_Name_Length, Var_Name_Length)),
Node => Att_Ref);
else
-- This is a reference to a variable
declare
Variable : constant Name_Type :=
Get_Name_Type
(Var_Name, Var_Name_Length, Var_Name_Length);
begin
if Var_Name_Length < 2 then
-- A 1 word variable can only refer to a variable declared
-- implicitly (in case of extends or child) or explicitly
-- in the current project itself.
if In_Pack and then Pack_Ref.Vars.Contains (Variable) then
-- If we are in the context of a package we don't need
-- the package prefix to refer to variables explicitly
-- declared in the package.
return Get_Variable_Ref
(Pack => Pack_Name,
Variable => Variable,
Source_Ref => Source_Ref);
else
-- This is a reference to a variable in the current
-- project scope
return Get_Variable_Ref
(Variable => Variable, Source_Ref => Source_Ref);
end if;
elsif Prj_Name_Length > 0
and then Prj_Name_Length + 1 = Var_Name_Length
then
-- it is a <project_name>.<variable_name>
return Get_Variable_Ref
(Project =>
Get_Name_Type (Var_Name, 1, Var_Name_Length - 1),
Variable => Variable,
Source_Ref => Source_Ref);
elsif Prj_Name_Length = 0 and then Var_Name_Length = 2 then
-- it is a <package_name>.<variable_name>
return Get_Variable_Ref
(Pack =>
+Get_Name_Type (Var_Name, 1, Var_Name_Length - 1),
Variable => Variable,
Source_Ref => Source_Ref);
else
-- it is a <project_name>.<package_name>.<variable_name>
return Get_Variable_Ref
(Project =>
Get_Name_Type (Var_Name, 1, Var_Name_Length - 2),
Pack =>
+Get_Name_Type
(Var_Name, Var_Name_Length - 1, Var_Name_Length - 1),
Variable => Variable,
Source_Ref => Source_Ref);
end if;
end;
end if;
end Get_Variable_Values;
-----------------------
-- Is_Limited_Import --
-----------------------
function Is_Limited_Import
(Self : Object; Project : Name_Type) return Boolean
is
package PIS renames GPR2.Project.Import.Set;
Position : constant PIS.Cursor := Self.Imports.Find (Project);
begin
return PIS.Has_Element (Position)
and then PIS.Element (Position).Is_Limited;
end Is_Limited_Import;
------------
-- Parser --
------------
function Parser (Node : Gpr_Node'Class) return Visit_Status is
Status : Visit_Status := Into;
procedure Parse_Attribute_Decl (Node : Attribute_Decl);
-- Parse attribute declaration and append it into Attrs set
procedure Parse_Variable_Decl (Node : Variable_Decl)
with Pre => Is_Open;
-- Parse variable declaration and append it into the Vars set
procedure Parse_Package_Decl (Node : Package_Decl)
with Pre => Is_Open;
-- Parse variable declaration and append it into the Vars set
procedure Parse_Package_Renaming (Node : Package_Renaming)
with Pre => Is_Open;
-- Parse a package renaming
procedure Parse_Package_Extension (Node : Package_Extension)
with Pre => Is_Open;
-- Parse a package extension
procedure Parse_Project_Declaration (N : Project_Declaration)
with Pre => Is_Open;
-- Parse the project declaration
procedure Parse_Case_Construction (Node : Case_Construction)
with Post => Case_Values.Length'Old = Case_Values.Length;
-- Parse a case construction, during a case construction parsing the
-- Is_Open flag may be set to False and True. Set Is_Open comments.
procedure Parse_Case_Item (Node : Case_Item)
with Pre => not Case_Values.Is_Empty;
-- Set Is_Open to True or False depending on the item
procedure Visit_Child (Child : Gpr_Node);
-- Recursive call to the Parser if the Child is not null
--------------------------
-- Parse_Attribute_Decl --
--------------------------
procedure Parse_Attribute_Decl (Node : Attribute_Decl) is
Name : constant Identifier := F_Attr_Name (Node);
Index : constant Gpr_Node := F_Attr_Index (Node);
Expr : constant Term_List := F_Expr (Node);
N_Str : constant Name_Type :=
Get_Name_Type (Name.As_Single_Tok_Node);
N_Id : constant Attribute_Id := +N_Str;
function Create_Index return PAI.Object;
-- Create index with "at" part if exists
procedure Create_And_Register_Attribute
(Index : PAI.Object;
Values : Containers.Source_Value_List;
Single : Boolean);
-- Create attribute and register it if needed
Q_Name : constant Q_Attribute_Id := (Pack_Name, N_Id);
Values : constant Item_Values := Get_Term_List (Expr);
A : PA.Object;
-- Set to False if the attribute definition is invalid
Id : constant Source_Reference.Attribute.Object :=
Get_Attribute_Reference
(Self.Path_Name, Sloc_Range (Name), Q_Name);
-- The attribute name & sloc
Sloc : constant Source_Reference.Object :=
Get_Source_Reference (Self.File, Node);
use PAI;
use PRA;
Is_Name_Exception : constant Boolean :=
N_Id in
Naming.Spec.Attr
| Naming.Specification.Attr
| Naming.Body_N.Attr
| Naming.Implementation.Attr;
-----------------------------------
-- Create_And_Register_Attribute --
-----------------------------------
procedure Create_And_Register_Attribute
(Index : PAI.Object;
Values : Containers.Source_Value_List;
Single : Boolean)
is
Position : Containers.Filename_Source_Reference_Package.Cursor;
Inserted : Boolean;
begin
if Single then
pragma Assert (Expr.Children_Count >= 1);
A := PA.Create
(Name => Id,
Index => Index,
Value => Values.First_Element);
else
A := PA.Create
(Name => Id,
Index => Index,
Values => Values);
end if;
-- Record attribute with proper casing definition if found
if PRA.Exists (Q_Name) then
declare
Def : constant PRA.Def := PRA.Get (Q_Name);
begin
if Def.Builtin then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Sloc,
Message => "builtin attribute """
& Image (Q_Name)
& """ is read-only"));
end if;
A.Set_Case
(Value_Is_Case_Sensitive => Def.Value_Case_Sensitive);
end;
end if;
if Is_Open then
if View_Def.Is_Root
and then View_Def.Kind /= K_Configuration
and then A.Name.Id = PRA.Target
and then Tree.Has_Configuration
and then A.Value.Text /= "all"
then
-- Check if defined target in the project is the
-- same as configuration. Else issue a warning.
declare
C_View : Project.View.Object renames
Tree.Configuration.Corresponding_View;
T_Conf : constant Name_Type :=
Name_Type
(C_View.Attribute
(PRA.Target).Value.Text);
T_Attr : constant Name_Type :=
Name_Type (A.Value.Text);
Base : GPR2.KB.Object := Tree.Get_KB;
begin
if not Base.Is_Defined then
Base := GPR2.KB.Create_Default
(GPR2.KB.Targetset_Only_Flags,
Tree.Environment);
end if;
if Base.Normalized_Target (T_Conf) /=
Base.Normalized_Target (T_Attr)
then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Warning,
Sloc => Sloc,
Message => "target attribute '"
& String (T_Attr)
& "' not used, overridden by the "
& "configuration's target: "
& String (T_Conf)));
end if;
end;
end if;
declare
Alias : constant Q_Optional_Attribute_Id :=
PRA.Alias (Q_Name);
A2 : constant GPR2.Project.Attribute.Object :=
(if Alias.Attr /= No_Attribute
then A.Get_Alias (Alias)
else Project.Attribute.Undefined);
begin
if In_Pack then
Record_Attribute (Pack_Ref.Attrs, A);
if A2.Is_Defined
and then Pack_Ref.Attrs.Contains (A2)
then
-- Need to update the value
Record_Attribute (Pack_Ref.Attrs, A2);
end if;
if Is_Name_Exception then
Actual.Include (Filename_Type (A.Value.Text));
end if;
else
Record_Attribute (Attrs, A);
if A2.Is_Defined and then Attrs.Contains (A2) then
-- Need to update the value
Record_Attribute (Attrs, A2);
end if;
end if;
end;
elsif Is_Name_Exception then
Self.Skip_Src.Insert
(Filename_Type (A.Value.Text), A.Value,
Position, Inserted);
end if;
end Create_And_Register_Attribute;
------------------
-- Create_Index --
------------------
function Create_Index return PAI.Object is
Str_Lit : String_Literal_At;
At_Lit : Num_Literal;
begin
if Index.Kind = Gpr_Others_Designator then
return PAI.Create
(Get_Value_Reference
(Self.Path_Name, Sloc_Range (Index), "others"),
Is_Others => True,
Case_Sensitive => False);
else
Str_Lit := Index.As_String_Literal_At;
At_Lit := Str_Lit.F_At_Lit;
return PAI.Create
(Get_Value_Reference
(Self.Path_Name, Sloc_Range (Index),
Get_Value_Type (Str_Lit.F_Str_Lit),
At_Pos =>
(if At_Lit = No_Gpr_Node
then 0
else Unit_Index'Wide_Wide_Value (At_Lit.Text))),
Is_Others => False,
Case_Sensitive => False);
end if;
end Create_Index;
I_Sloc : PAI.Object :=
(if Present (Index)
then Create_Index
else PAI.Undefined);
begin
if not I_Sloc.Is_Defined
and then PRA.Exists (Q_Name)
and then PRA.Get (Q_Name).Index_Type /= PRA.No_Index
then
if not Values.Indexed_Values.Filled then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Sloc,
Message => "full associative array expression " &
"requires simple attribute reference"));
elsif
Values.Indexed_Values.Attribute_Name.Pack /= Pack_Name
then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Sloc,
Message => "not the same package as " &
Image (Pack_Name)));
elsif Values.Indexed_Values.Attribute_Name.Attr /= N_Id then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Sloc,
Message => "full associative array expression " &
"must reference the same attribute """ &
Image (N_Id) & '"'));
else
for V of Values.Indexed_Values.Values loop
Create_And_Register_Attribute
(Index => V.Index,
Values => V.Values,
Single => V.Single);
end loop;
end if;
elsif Values /= No_Values then
if I_Sloc.Is_Defined and then PRA.Exists (Q_Name) then
I_Sloc.Set_Case
(PRA.Is_Case_Sensitive
(I_Sloc.Value, PRA.Get (Q_Name).Index_Type));
end if;
Create_And_Register_Attribute
(Index => I_Sloc,
Values => Values.Values,
Single => Values.Single);
end if;
end Parse_Attribute_Decl;
-----------------------------
-- Parse_Case_Construction --
-----------------------------
procedure Parse_Case_Construction (Node : Case_Construction) is
Var : constant Variable_Reference := F_Var_Ref (Node);
Value : constant Containers.Source_Value_List :=
Get_Variable_Values (Var).Values;
Att_Ref : constant Attribute_Reference := F_Attribute_Ref (Var);
begin
if Present (Att_Ref) then
-- Can't have attribute references as value in case statements
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Get_Source_Reference (Self.File, Att_Ref),
Message => "attribute reference not allowed here"));
elsif Value.Length = 1 then
Case_Values.Append ('-' & Value.First_Element.Text);
-- Set status to close for now, this will be open when a
-- when_clause will match the value pushed just above on
-- the vector.
declare
Childs : constant Case_Item_List := F_Items (Node);
begin
for C in 1 .. Children_Count (Childs) loop
Visit_Child (Child (Childs, C));
end loop;
end;
-- Then remove the case value
Case_Values.Delete_Last;
-- Skip all nodes for this construct
Status := Over;
elsif not Has_Error then
Tree.Log_Messages.Append
(Message.Create
(Level => Missing_Project_Error_Level,
Sloc => Get_Source_Reference (Self.File, Node),
Message => "variable """
& String (Get_Name_Type (F_Variable_Name (Var), 1, 1))
& """ must be a simple value"));
if Pre_Conf_Mode then
Status := Over;
end if;
end if;
end Parse_Case_Construction;
---------------------
-- Parse_Case_Item --
---------------------
procedure Parse_Case_Item (Node : Case_Item) is
function Parser (Node : Gpr_Node'Class) return Visit_Status;
Case_Value : constant String := Case_Values.Last_Element;
Is_That_Case : Boolean := False;
------------
-- Parser --
------------
function Parser (Node : Gpr_Node'Class) return Visit_Status is
begin
case Kind (Node) is
when Gpr_String_Literal =>
Is_That_Case :=
Unquote (To_UTF8 (Node.Text))
= Case_Value (2 .. Case_Value'Last);
when Gpr_Others_Designator =>
Is_That_Case := True;
when others =>
return Into;
end case;
return (if Is_That_Case then Stop else Over);
end Parser;
begin
case Case_Value (1) is
when '-' =>
Traverse (F_Choice (Node), Parser'Access);
if Is_That_Case then
Case_Values (Case_Values.Last) (1) := '+';
end if;
when '+' =>
Case_Values (Case_Values.Last) (1) := '^';
when others =>
null;
end case;
end Parse_Case_Item;
------------------------
-- Parse_Package_Decl --
------------------------
procedure Parse_Package_Decl (Node : Package_Decl) is
Name : constant Identifier := F_Pkg_Name (Node);
P_Name : constant Package_Id :=
+Get_Name_Type (Name.As_Single_Tok_Node);
begin
-- Entering a package, set the state and parse the corresponding
-- children.
In_Pack := True;
Pack_Name := P_Name;
-- Make sure the package exists in view, and make Pack_Ref point
-- to it.
Packs.Include
(P_Name,
GPR2.Project.Pack.Object'
(Source_Reference.Pack.Object
(Source_Reference.Pack.Create
(Get_Source_Reference (Self.File, Node), P_Name)) with
PA.Set.Empty_Set, Project.Variable.Set.Empty_Set));
Pack_Ref := Packs.Reference (P_Name).Element;
Visit_Child (F_Pkg_Spec (Node));
In_Pack := False;
Pack_Name := Project_Level_Scope;
Pack_Ref := null;
-- Skip all nodes for this construct
Status := Over;
end Parse_Package_Decl;
-----------------------------
-- Parse_Package_Extension --
-----------------------------
procedure Parse_Package_Extension (Node : Package_Extension) is
Sloc : constant Source_Reference.Object :=
Get_Source_Reference (Self.File, Node);
Values : constant Identifier_List := F_Extended_Name (Node);
Num_Childs : constant Positive := Children_Count (Values);
Project : constant Name_Type :=
(if Num_Childs > 1
then Get_Name_Type
(Values, Last => Num_Childs - 1)
else "?");
P_Name : constant Package_Id :=
+Get_Name_Type (Values, Num_Childs, Num_Childs);
View : constant GPR2.Project.View.Object :=
(if Num_Childs > 1
then Process.View.View_For (Project)
else GPR2.Project.View.Undefined);
begin
-- Clear any previous value. This node is parsed as a child
-- process of Parse_Package_Decl routine above.
Pack_Ref.Attrs.Clear;
Pack_Ref.Vars.Clear;
-- Check if the Project.Package reference exists
if Num_Childs = 1 then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Sloc,
Message =>
"project_name.package_name reference is required"));
elsif Is_Limited_Import (Self, Project) then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Sloc,
Message =>
"cannot have a reference to a limited project"));
elsif not View.Is_Defined then
Tree.Log_Messages.Append
(Message.Create
(Level => Missing_Project_Error_Level,
Sloc => Sloc,
Message =>
"undefined project """ & String (Project) & '"'));
elsif not View.Has_Package (P_Name) then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Sloc,
Message =>
"undefined package """ &
String (Project) & '.' & Image (P_Name)
& '"'));
else
-- Then just copy the attributes into the current package
Pack_Ref.Attrs := View.Raw_Attributes (P_Name);
Pack_Ref.Vars := View.Variables (Pack => P_Name);
end if;
Status := Over;
end Parse_Package_Extension;
----------------------------
-- Parse_Package_Renaming --
----------------------------
procedure Parse_Package_Renaming (Node : Package_Renaming) is
Sloc : constant Source_Reference.Object :=
Get_Source_Reference (Self.File, Node);
Values : constant Identifier_List := F_Renamed_Name (Node);
Num_Childs : constant Positive := Children_Count (Values);
Project : constant Name_Type :=
(if Num_Childs > 1
then Get_Name_Type
(Values, Last => Num_Childs - 1)
else "?");
P_Name : constant Package_Id :=
+Get_Name_Type (Values, Num_Childs, Num_Childs);
View : constant GPR2.Project.View.Object :=
(if Num_Childs > 1
then Process.View.View_For (Project)
else GPR2.Project.View.Undefined);
begin
-- Clear any previous value. This node is parsed as a child
-- process of Parse_Package_Decl routine above.
Pack_Ref.Attrs.Clear;
Pack_Ref.Vars.Clear;
-- Check if the Project.Package reference exists
if Num_Childs = 1 then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Sloc,
Message =>
"project_name.package_name reference is required"));
elsif Is_Limited_Import (Self, Project) then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Sloc,
Message =>
"cannot have a reference to a limited project"));
elsif not View.Is_Defined then
Tree.Log_Messages.Append
(Message.Create
(Level => Missing_Project_Error_Level,
Sloc => Sloc,
Message =>
"undefined project """ & String (Project) & '"'));
elsif not View.Has_Package (P_Name) then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Warning,
Sloc => Sloc,
Message =>
"undefined package """ &
String (Project) & '.' & Image (P_Name) & '"'));
else
-- Then just copy the attributes into the current package
Pack_Ref.Attrs := View.Raw_Attributes (P_Name);
Pack_Ref.Vars := View.Variables (Pack => P_Name);
end if;
Status := Over;
end Parse_Package_Renaming;
-------------------------------
-- Parse_Project_Declaration --
-------------------------------
procedure Parse_Project_Declaration (N : Project_Declaration) is
Dot_Map : constant Strings.Maps.Character_Mapping :=
Strings.Maps.To_Mapping ("-", ".");
-- A dash on a project's file name is translated as a dot in the
-- actual project name.
Prj_Name : constant Name_Type :=
Name_Type
(Strings.Fixed.Translate
(String (Self.File.Base_Name),
Mapping => Dot_Map));
begin
-- Check that project name is consistent with the filename, we
-- skip autoconf which is using the Default project name.
if Self.Qualifier /= K_Configuration
and then Name_Type (To_String (Self.Name)) /= Prj_Name
then
Tree.Log_Messages.Append
(GPR2.Message.Create
(Level => Message.Warning,
Sloc =>
Get_Source_Reference (Self.File, F_Project_Name (N)),
Message =>
"project name '" & String (Prj_Name) & "' expected"));
end if;
end Parse_Project_Declaration;
-------------------------
-- Parse_Variable_Decl --
-------------------------
procedure Parse_Variable_Decl (Node : Variable_Decl) is
function Search_Paths return GPR2.Path_Name.Set.Object is
(GPR2.Project.Search_Paths
(Self.File, Tree.Project_Search_Paths));
function Sloc return Source_Reference.Object is
(Get_Source_Reference (Self.File, Node));
-- Use function instead of constant because Sloc need only in case
-- of error logging and no more than once.
Name : constant Identifier := F_Var_Name (Node);
Expr : constant Term_List := F_Expr (Node);
Values : constant Item_Values := Get_Term_List (Expr);
V_Type : constant Type_Reference := F_Var_Type (Node);
V : GPR2.Project.Variable.Object;
Type_Def : GPR2.Project.Typ.Object;
begin
if not V_Type.Is_Null then
declare
package PTS renames GPR2.Project.Typ.Set.Set;
CT : PTS.Cursor;
Type_N : constant Identifier_List :=
F_Var_Type_Name (V_Type);
Num_Childs : constant Positive := Children_Count (Type_N);
T_Name : constant Name_Type :=
Get_Name_Type
(Type_N, Num_Childs, Num_Childs);
procedure Get_Type_Def_From
(Imp : GPR2.Project.Import.Object);
-- Try to find type definition from Imp by name T_Name and
-- store it to Type_Def if found.
-----------------------
-- Get_Type_Def_From --
-----------------------
procedure Get_Type_Def_From
(Imp : GPR2.Project.Import.Object)
is
Path : constant GPR2.Path_Name.Object :=
GPR2.Project.Create
(Imp.Path_Name.Name, Search_Paths);
Types : GPR2.Project.Typ.Set.Object;
begin
if Path.Exists then
Types := Registry.Get (Path).Types;
CT := Types.Find (T_Name);
if PTS.Has_Element (CT) then
Type_Def := PTS.Element (CT);
end if;
end if;
end Get_Type_Def_From;
begin
if Num_Childs > 1 then
-- We have a project prefix for the type name
declare
package PIS renames GPR2.Project.Import.Set;
Position : constant PIS.Cursor :=
Self.Imports.Find
(Get_Name_Type
(Type_N, 1, Num_Childs - 1, "-"));
begin
if PIS.Has_Element (Position) then
Get_Type_Def_From (PIS.Element (Position));
end if;
end;
end if;
if not Type_Def.Is_Defined
or else Type_Def.Count_Values = 0
then
CT := Self.Types.Find (T_Name);
if PTS.Has_Element (CT) then
Type_Def := PTS.Element (CT);
elsif Self.Has_Extended then
Get_Type_Def_From (Self.Extended);
end if;
-- Type definition from "parent" project
if not Type_Def.Is_Defined
and then Self.Has_Imports
and then Count (Self.Name, ".") > 0
then
declare
Prj_Id : constant String := -Self.Name;
Dot_Position : Natural := Prj_Id'First;
I_Cursor : GPR2.Project.Import.Set.Cursor;
begin
loop
for J in Dot_Position .. Prj_Id'Last loop
Dot_Position := J;
exit when Prj_Id (J) = '.';
end loop;
exit when Dot_Position = Prj_Id'Last;
I_Cursor := Self.Imports.Find
(Name_Type (Prj_Id (1 .. Dot_Position - 1)));
if GPR2.Project.Import.Set.Has_Element
(I_Cursor)
then
Get_Type_Def_From
(GPR2.Project.Import.Set.Element
(I_Cursor));
end if;
exit when Type_Def.Is_Defined;
end loop;
end;
end if;
end if;
-- Check that the type has been defined
if Type_Def.Is_Defined
and then Type_Def.Count_Values /= 0
then
-- Check that we have a single value
if Values.Single then
-- Check that the value is part of the type
declare
Value : constant Value_Type :=
Values.Values.First_Element.Text;
begin
if Value /= ""
and then
not To_Set (Type_Def.Values).Contains (Value)
then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Sloc,
Message => "value """ & Value
& """ is illegal for typed string """
& Get_Value_Type (Single_Tok_Node (Name))
& '"'));
end if;
end;
else
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Sloc,
Message =>
"expression for """
& Get_Value_Type (Single_Tok_Node (Name))
& """ must be a single string"));
end if;
else
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Get_Source_Reference (Self.File, V_Type),
Message =>
"unknown string type """ & String (T_Name) &
'"'));
end if;
end;
end if;
if Values = No_Values then
-- Do not report failure of evaluating the left-hand side if
-- errors have already been reported: failure to get the actual
-- value(s) is most certainly a direct consequence of the
-- previous error.
--
-- Detecting such error without other explicit error is not
-- expected, so this is just a safe guard, not expected to be
-- covered by tests.
if not Tree.Log_Messages.Has_Error
and then Non_Fatal_Error.Is_Empty
then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Get_Source_Reference (Self.File, Name),
Message =>
"internal error evaluating the value for """ &
Get_Value_Type (Single_Tok_Node (Name)) &
'"'));
end if;
return;
elsif Values.Single then
V := GPR2.Project.Variable.Create
(Name =>
Get_Identifier_Reference
(Self.File,
Sloc_Range (Name),
Get_Name_Type (Single_Tok_Node (Name))),
Value => Values.Values.First_Element,
Typ => Type_Def);
else
V := GPR2.Project.Variable.Create
(Name =>
Get_Identifier_Reference
(Self.File,
Sloc_Range (Name),
Get_Name_Type (Single_Tok_Node (Name))),
Values => Values.Values,
Typ => Type_Def);
end if;
if In_Pack then
Pack_Ref.Vars.Include (V.Name.Text, V);
else
Vars.Include (V.Name.Text, V);
end if;
end Parse_Variable_Decl;
-----------------
-- Visit_Child --
-----------------
procedure Visit_Child (Child : Gpr_Node) is
begin
if Present (Child) then
Status := Traverse (Node => Child, Visit => Parser'Access);
end if;
end Visit_Child;
begin
if Is_Open then
-- Handle all kind of nodes when the parsing is open
case Kind (Node) is
when Gpr_Project_Declaration =>
Parse_Project_Declaration (Node.As_Project_Declaration);
when Gpr_Attribute_Decl =>
Parse_Attribute_Decl (Node.As_Attribute_Decl);
when Gpr_Variable_Decl =>
Parse_Variable_Decl (Node.As_Variable_Decl);
when Gpr_Package_Decl =>
Parse_Package_Decl (Node.As_Package_Decl);
when Gpr_Package_Renaming =>
Parse_Package_Renaming (Node.As_Package_Renaming);
when Gpr_Package_Extension =>
Parse_Package_Extension (Node.As_Package_Extension);
when Gpr_Case_Construction =>
Parse_Case_Construction (Node.As_Case_Construction);
when Gpr_Case_Item =>
Parse_Case_Item (Node.As_Case_Item);
when others =>
null;
end case;
else
-- We are on a closed parsing mode, only handle case alternatives
-- and Spec and Body attributes
case Kind (Node) is
when Gpr_Case_Construction =>
Parse_Case_Construction (Node.As_Case_Construction);
when Gpr_Case_Item =>
Parse_Case_Item (Node.As_Case_Item);
when Gpr_Attribute_Decl =>
Parse_Attribute_Decl (Node.As_Attribute_Decl);
when others =>
null;
end case;
end if;
if Has_Error then
Status := Stop;
end if;
return Status;
end Parser;
----------------------
-- Record_Attribute --
----------------------
procedure Record_Attribute
(Set : in out PA.Set.Object;
A : PA.Object)
is
use type PRA.Value_Kind;
use type PRA.Empty_Value_Status;
Include : Boolean := True;
Q_Name : constant Q_Attribute_Id := A.Name.Id;
Def : PRA.Def;
begin
-- Check that a definition exists
if not PRA.Exists (Q_Name) then
if Q_Name.Pack = Project_Level_Scope
or else PRP.Attributes_Are_Checked (Q_Name.Pack)
then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Source_Reference.Object (A),
Message => "unrecognized attribute """ &
Image (Q_Name) & """"));
end if;
Include := False;
-- Malformed attribute values can be side-effects of another
-- error (such as missing variable). So only perform the next
-- checks if there's no critical error.
elsif not Tree.Log_Messages.Has_Error then
-- Check value kind
Def := PRA.Get (Q_Name);
if Def.Value /= A.Kind then
if Def.Value = PRA.Single then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Source_Reference.Object (A),
Message => "attribute """ & Image (Q_Name) &
""" expects a single value"));
else
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Source_Reference.Object (A),
Message => "attribute """ & Image (Q_Name) &
""" expects a list of values"));
end if;
Include := False;
elsif Def.Value = PRA.Single
and then Def.Empty_Value in PRA.Error | PRA.Ignore
and then Length (A.Value.Unchecked_Text) = 0
then
if Def.Empty_Value = PRA.Error then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Source_Reference.Object (A.Value),
Message => "attribute """ & Image (Q_Name)
& """ cannot be empty"));
else
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Warning,
Sloc => Source_Reference.Object (A.Value),
Message => "empty attribute """ & Image (Q_Name)
& """ ignored"));
end if;
Include := False;
elsif Q_Name = PRA.Main then
-- A main attrbute must contain only basename and must reject
-- full names. We ensure here that we don't have directory
-- separators in the list of mains.
for V of A.Values loop
declare
M : constant String := V.Text;
begin
-- Check for bath Unix & Windows directory separators
if Strings.Fixed.Index
(M, Strings.Maps.To_Set ("/\")) > 0
then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Source_Reference.Object (A),
Message => "attribute """ & Image (Q_Name)
& """ accepts only simple names"));
end if;
end;
end loop;
end if;
-- Check the attribute index
case Def.Index_Type is
when PRA.No_Index =>
if A.Has_Index then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Source_Reference.Object (A.Index),
Message => "attribute """ & Image (Q_Name) &
""" does not expect an index"));
Include := False;
end if;
when others =>
if not A.Has_Index then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Source_Reference.Object (A),
Message => "attribute """ & Image (Q_Name) &
""" expects an index"));
Include := False;
elsif A.Index.Is_Others
and then not Def.Index_Optional
then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Source_Reference.Object (A),
Message => "'others' index not allowed with """ &
Image (Q_Name) & """"));
Include := False;
end if;
end case;
end if;
if Set.Contains (A) then
declare
Old : constant PA.Object :=
Set.Element (A.Name.Id.Attr, A.Index);
begin
if Old.Is_Frozen then
Tree.Log_Messages.Append
(Message.Create
(Level => Message.Error,
Sloc => Source_Reference.Object (A),
Message => "cannot set configuration attribute """ &
Image (A.Name.Id) &
""" after it was referenced"));
Include := False;
end if;
end;
end if;
if Include then
Set.Include (A);
end if;
end Record_Attribute;
------------
-- To_Set --
------------
function To_Set
(Values : Containers.Source_Value_List) return Containers.Value_Set is
begin
return Set : Containers.Value_Set do
for V of Values loop
Set.Insert (V.Text);
end loop;
end return;
end To_Set;
Is_Parsed_Project : constant Boolean := Self.Unit /= No_Analysis_Unit;
begin
if Is_Parsed_Project then
Attrs.Clear;
Vars.Clear;
Packs.Clear;
end if;
-- Insert intrinsic attributes Name and Project_Dir
declare
use Characters.Handling;
Sloc : constant Source_Reference.Object :=
Source_Reference.Object
(Source_Reference.Create (Self.File.Value, 0, 0));
function Create_Attr
(Name : Q_Attribute_Id) return Source_Reference.Attribute.Object
is
(Source_Reference.Attribute.Object
(Source_Reference.Attribute.Create (Sloc, Name)));
begin
Attrs.Insert
(PA.Create
(Name => Create_Attr (PRA.Name),
Value => Get_Value_Reference
(To_Lower (To_String (Self.Name)), Sloc),
Default => True));
Attrs.Insert
(PA.Create
(Name => Create_Attr (PRA.Project_Dir),
Value => Get_Value_Reference (Self.File.Dir_Name, Sloc),
Default => True));
end;
Types := Self.Types;
if Is_Parsed_Project then
Definition.Get (View).Disable_Cache;
Traverse (Root (Self.Unit), Parser'Access);
Definition.Get (View).Enable_Cache;
end if;
-- Fill possible non-fatal errors into the tree now
for M of Non_Fatal_Error loop
Tree.Log_Messages.Append (M);
end loop;
for F of Actual loop
Self.Skip_Src.Exclude (F);
end loop;
end Process;
---------------
-- Qualifier --
---------------
function Qualifier (Self : Object) return Project_Kind is
begin
return Self.Qualifier;
end Qualifier;
----------
-- Unit --
----------
function Unit (Self : Object) return Analysis_Unit is
begin
return Self.Unit;
end Unit;
end GPR2.Project.Parser;
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