package Prj.Tree is
Project_Nodes_Initial : constant := 1_000;
- -- Initial number of nodes in table Tree_Private_Part.Project_Nodes
Project_Nodes_Increment : constant := 100;
+ -- Allocation parameters for initializing and extending number
+ -- of nodes in table Tree_Private_Part.Project_Nodes
Project_Node_Low_Bound : constant := 0;
- Project_Node_High_Bound : constant := 099_999_999; -- In practice, infinite
+ Project_Node_High_Bound : constant := 099_999_999;
+ -- Range of values for project node id's (in practice infinite)
type Project_Node_Id is range
Project_Node_Low_Bound .. Project_Node_High_Bound;
-- The index of table Tree_Private_Part.Project_Nodes
- Empty_Node : constant Project_Node_Id := Project_Node_Low_Bound;
+ Empty_Node : constant Project_Node_Id := Project_Node_Low_Bound;
-- Designates no node in table Project_Nodes
- First_Node_Id : constant Project_Node_Id := Project_Node_Low_Bound;
- subtype Variable_Node_Id is Project_Node_Id;
- -- Used to designate a node whose expected kind is
+ First_Node_Id : constant Project_Node_Id := Project_Node_Low_Bound + 1;
+
+ subtype Variable_Node_Id is Project_Node_Id;
+ -- Used to designate a node whose expected kind is one of
-- N_Typed_Variable_Declaration, N_Variable_Declaration or
-- N_Variable_Reference.
+
subtype Package_Declaration_Id is Project_Node_Id;
- -- Used to designate a node whose expected kind is
- -- N_Project_Declaration.
+ -- Used to designate a node whose expected kind is N_Proect_Declaration
type Project_Node_Kind is
(N_Project,
function Default_Project_Node
(Of_Kind : Project_Node_Kind;
And_Expr_Kind : Variable_Kind := Undefined)
- return Project_Node_Id;
+ return Project_Node_Id;
-- Returns a Project_Node_Record with the specified Kind and
-- Expr_Kind; all the other components have default nil values.
function First_Variable_Of
(Node : Project_Node_Id)
- return Variable_Node_Id;
+ return Variable_Node_Id;
-- Only valid for N_Project or N_Package_Declaration nodes
function First_Package_Of
function Associative_Array_Index_Of
(Node : Project_Node_Id)
return String_Id;
- -- Only valid for N_Attribute_Declaration.
+ -- Only valid for N_Attribute_Declaration and N_Attribute_Reference.
-- Returns No_String for non associative array attributes.
function Next_Variable
-- Only valid for N_Case_Item nodes
function Case_Insensitive (Node : Project_Node_Id) return Boolean;
- -- Only valid for N_Attribute_Declaration nodes
+ -- Only valid for N_Attribute_Declaration and N_Attribute_Reference nodes
--------------------
-- Set Procedures --
type Project_Node_Record is record
- Kind : Project_Node_Kind;
+ Kind : Project_Node_Kind;
- Location : Source_Ptr := No_Location;
+ Location : Source_Ptr := No_Location;
- Directory : Name_Id := No_Name;
+ Directory : Name_Id := No_Name;
-- Only for N_Project
- Expr_Kind : Variable_Kind := Undefined;
+ Expr_Kind : Variable_Kind := Undefined;
-- See below for what Project_Node_Kind it is used
- Variables : Variable_Node_Id := Empty_Node;
+ Variables : Variable_Node_Id := Empty_Node;
-- First variable in a project or a package
- Packages : Package_Declaration_Id := Empty_Node;
+ Packages : Package_Declaration_Id := Empty_Node;
-- First package declaration in a project
- Pkg_Id : Package_Node_Id := Empty_Package;
- -- Only use in Package_Declaration
-
- Name : Name_Id := No_Name;
+ Pkg_Id : Package_Node_Id := Empty_Package;
+ -- Only used for N_Package_Declaration
+ -- The component Pkg_Id is an entry into the table Package_Attributes
+ -- (in Prj.Attr). It is used to indicate all the attributes of the
+ -- package with their characteristics.
+ --
+ -- The tables Prj.Attr.Attributes and Prj.Attr.Package_Attributes
+ -- are built once and for all through a call (from Prj.Initialize)
+ -- to procedure Prj.Attr.Initialize. It is never modified after that.
+
+ Name : Name_Id := No_Name;
-- See below for what Project_Node_Kind it is used
- Path_Name : Name_Id := No_Name;
+ Path_Name : Name_Id := No_Name;
-- See below for what Project_Node_Kind it is used
- Value : String_Id := No_String;
+ Value : String_Id := No_String;
-- See below for what Project_Node_Kind it is used
- Field1 : Project_Node_Id := Empty_Node;
+ Field1 : Project_Node_Id := Empty_Node;
-- See below the meaning for each Project_Node_Kind
- Field2 : Project_Node_Id := Empty_Node;
+ Field2 : Project_Node_Id := Empty_Node;
-- See below the meaning for each Project_Node_Kind
- Field3 : Project_Node_Id := Empty_Node;
+ Field3 : Project_Node_Id := Empty_Node;
-- See below the meaning for each Project_Node_Kind
- Case_Insensitive : Boolean := False;
- -- Indicates, for an associative array attribute, that the
- -- index is case insensitive.
+ Case_Insensitive : Boolean := False;
+ -- This flag is significant only for N_Attribute_Declaration and
+ -- N_Atribute_Reference. It indicates for an associative array
+ -- attribute, that the index is case insensitive.
end record;
-- -- Field1: project
-- -- Field2: package (if attribute of a package)
-- -- Field3: not used
- -- -- Value: not used
+ -- -- Value: associative array index
+ -- -- (if an associative array element)
-- N_Case_Construction,
-- -- Name: not used
-- from project files.
type Project_Name_And_Node is record
- Name : Name_Id;
+ Name : Name_Id;
-- Name of the project
- Node : Project_Node_Id;
+
+ Node : Project_Node_Id;
-- Node of the project in table Project_Nodes
+
Modified : Boolean;
-- True when the project is being modified by another project
end record;
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