m3tk/src/syn/M3CReservedWord.i3


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 Copyright (C) 1991, Digital Equipment Corporation           
 All rights reserved.                                        
 See the file COPYRIGHT for a full description.              

INTERFACE M3CReservedWord;

IMPORT M3CToken, M3CHash;

TYPE
  Table <: M3CHash.Table;
  Id <: M3CHash.Id;

PROCEDURE Token(id: Id): M3CToken.T RAISES {};

PROCEDURE New(
    size: CARDINAL;
    idCreator: M3CHash.IdCreator := NIL)
    : Table
    RAISES {};
Returns a hash table which is like a normal 'M3CHash.Table' but already contains entries of type 'Id' for all the reserved words. Thus looking up a reserved word in this table will return an object of type 'Id'; 'Token' can then be used to return the reserved word token. If 'Id' is used as a supertype e.g. MyId = M3CReservedWord.Id OBJECT ... END; then when an object of type 'MyId' is allocated it will be set up specially so that 'Token(myId)' will return 'M3CToken.T.Identifier'

END M3CReservedWord.