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DataMuseum.dkPresents historical artifacts from the history of: Rational R1000/400 Tapes |
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top - metrics - downloadIndex: B T
Length: 4387 (0x1123)
Types: TextFile
Names: »B«
└─⟦180fe333a⟧ Bits:30000405 8mm tape, Rational 1000, SW CATALOG, 10_20_0
└─⟦180fe333a⟧ Bits:30000537 8mm tape, Rational 1000, SW Catalog 10_20_0
└─⟦5cb1d1d7f⟧ »DATA«
└─⟦3b1ee7bd8⟧
└─⟦this⟧
separate (Find_Unit.Build_Ada_Compilation_Unit)
procedure Task_Body (Current_Unit : in out
Compilation_Unit.Ada_Compilation_Unit) is
--==============================================================
-- This procedure builds the next part of the grammar for an =
-- Ada compilation unit. Based on the next token, we will =
-- complete different productions. At present, we are parsing =
-- a task body or a task body stub. This procedure will first =
-- of all look for the keyword 'SEPARATE' to see if this is a =
-- task stub. If not, then the task body portion of the =
-- grammar will be parsed. The exception Build_Syntax_Error =
-- will be raised if the end of file token is found. =
-- The grammar : =
-- <Task_Body> = =
-- * {<Declaration> *} <Begin_Statement> <End_Unit| =
-- 'SEPARATE' ';' =
-- =
-- written by GER with help from b2 and JM =
-- May 1985 at EVB Software Engineering =
--==============================================================
Current_Token : Token_Package.Token;
-- Holds the current token
Peek_Token : Token_Package.Token;
-- A token that will be looked at again
begin
-- Task_Body
-- Set the peek back to the beginning
Token_Package.Set_Peek_Back;
-- Peek at the first keyword to see if it is a task
-- body stub or just a task body
Peek_Next_Significant_Token (Significant_Token => Peek_Token);
-- Parse either a task body stub or a task body
if Token_Package.Value_Of (Peek_Token) = Token_Package.Separate_Token then
Get_Next_Significant_Token (Significant_Token => Current_Token,
Current_Unit => Current_Unit);
Compilation_Unit.Add_Token_To_Compilation_Unit
(Token_To_Add => Current_Token, Unit_To_Add_To => Current_Unit);
-- Get the semicolon token
Get_Next_Significant_Token (Significant_Token => Current_Token,
Current_Unit => Current_Unit);
if Token_Package.Value_Of (Current_Token) =
Token_Package.Semicolon_Token then
Compilation_Unit.Add_Token_To_Compilation_Unit
(Token_To_Add => Current_Token, Unit_To_Add_To => Current_Unit);
else
-- This is not a task body stub. Raise error
raise Build_Syntax_Error;
end if;
else
-- This must be a task body
Search_For_Begin:
while "/=" (Token_Package.Value_Of (Peek_Token),
Token_Package.Begin_Token) loop
-- Is there a nested compilation unit ?
case Token_Package.Value_Of (Peek_Token) is
when Token_Package.Package_Token |
Token_Package.Generic_Token |
Token_Package.Task_Token |
Token_Package.Procedure_Token |
Token_Package.Function_Token =>
Declaration (Current_Unit => Current_Unit);
when others =>
-- Not a nested compilation unit
Get_Next_Significant_Token
(Significant_Token => Current_Token,
Current_Unit => Current_Unit);
if Token_Package.Class_Of (Current_Token) =
Token_Package.End_Of_File then
raise Build_Syntax_Error;
else
Compilation_Unit.Add_Token_To_Compilation_Unit
(Token_To_Add => Current_Token,
Unit_To_Add_To => Current_Unit);
end if;
end case;
-- Peek at the next significant token
Peek_Next_Significant_Token (Significant_Token => Peek_Token);
end loop Search_For_Begin;
Begin_Statement (Current_Unit => Current_Unit);
End_Unit (Current_Unit => Current_Unit);
end if;
end Task_Body;