BaseTools/Source/C/VfrCompile/Pccts/h/ATokenStream.h

   1 /* ANTLRTokenStream.h
   2  *
   3  * SOFTWARE RIGHTS
   4  *
   5  * We reserve no LEGAL rights to the Purdue Compiler Construction Tool
   6  * Set (PCCTS) -- PCCTS is in the public domain.  An individual or
   7  * company may do whatever they wish with source code distributed with
   8  * PCCTS or the code generated by PCCTS, including the incorporation of
   9  * PCCTS, or its output, into commerical software.
  10  *
  11  * We encourage users to develop software with PCCTS.  However, we do ask
  12  * that credit is given to us for developing PCCTS.  By "credit",
  13  * we mean that if you incorporate our source code into one of your
  14  * programs (commercial product, research project, or otherwise) that you
  15  * acknowledge this fact somewhere in the documentation, research report,
  16  * etc...  If you like PCCTS and have developed a nice tool with the
  17  * output, please mention that you developed it using PCCTS.  In
  18  * addition, we ask that this header remain intact in our source code.
  19  * As long as these guidelines are kept, we expect to continue enhancing
  20  * this system and expect to make other tools available as they are
  21  * completed.
  22  *
  23  * ANTLR 1.33
  24  * Terence Parr
  25  * Parr Research Corporation
  26  * with Purdue University and AHPCRC, University of Minnesota
  27  * 1989-2000
  28  */
  29
  30 #ifndef ATOKENSTREAM_H_GATE
  31 #define ATOKENSTREAM_H_GATE
  32
  33 #include "pcctscfg.h"
  34
  35 /* This is really a behavior or protocol; it merely indicates the behavior
  36  * required of the input and output of an ANTLRTokenBuffer.  You could
  37  * subclass it, but you can also just pass any old pointer to ANTLRTokenBuffer
  38  * with a type cast (in which case, your getANTLRToken() would have to
  39  * explicitly cast the input pointer to your REAL type (typically your lexer)).
  40  */
  41
  42 class ANTLRParser;                                                      // MR1
  43
  44 class DllExportPCCTS ANTLRTokenStream {
  45 public:
  46     virtual _ANTLRTokenPtr getToken() = 0;
  47         virtual ANTLRParser * setParser(ANTLRParser * /*p MR23*/) {return 0; };   // MR12
  48         virtual ANTLRParser * getParser() { return 0; };                        // MR12
  49 };
  50
  51 #endif