worries.txt

来自「开放源码的编译器open watcom 1.6.0版的源代码」· 文本 代码 · 共 51 行

List of Worries
===============

(1) Buffering
-------------
    - compiler wants to emit stuff as it sees it (no buffering)
    - merger wants stuff in another order
    - so, compiler has to buffer, or merger must either buffer or look ahead
    
    - if the compiler buffers, then the CgIo approach will be used
    
    (a) Names
    ---------
        - solved by interspersing names with other stuff, but the merger must
          now relocate name references since a reference can be to an element
          which has been discarded (because of duplication) from the current
          module
          
    (b) Macro Dependencies
    ----------------------
        - these are the "guards" for determining when a header-file is to be
          included
        - these are:
            * macro not defined
            * macro defined
            * macro defined and satisfies one the six comparison 
              relationships ( ==, !=, >, <, >=, <= )
              
    (c) Scopes
    ----------
        - the obvious emit algorithm will record start and end of scopes
        - this will generate a bunch of trivial scopes without use
        - nested scopes can be non-trivial 
              
(2) Volume
----------
    - do we got too much
    - we may have to provide limiting capabilities for the user (i.e., don't
      record field references)
      
(3) C++
-------

    (a) Pre-defined stuff
    ---------------------
        - we should implement a pseudo-header file for this
        
    (b) Anonymus Classes
    --------------------
        - we should get get better name