todo9112.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 284 行

Schedule: C++       91/12
========

- assumes everything goes as estimated; no slack in estimates

    March 1, 1992 -- finish coding

    March 15,1992 -- finish Beta documentation

    April 1, 1992 -- start Beta test for first shipment type

    April 15, 1992 -- finish documentation

    July 1, 1992  -- first customer ship (16-bit) -- decide on this order now

    July 15, 1992 -- first customer ship (32-bit)

    Aug 1, 1992   -- first customer ship (O/S 2)

Left to do:    compiler implementation
==========

(1) long double
    -----------
    - awaiting codegen support
    - should work with minor effort (3 line change!)

(2) linker support
    --------------
    - a - not sure state left by Jim Randall
    - b - what does C++ compiler need to do to get the effect?

(3) CodeGen Support
    ---------------
    - a - optimization of pointer deltas is not done (Brian says its coming)
DONE- b - lvalue support for assignment (did it in C++)
    - c - need to upgrade to newest C library
            - new entry sequence
    - d - initialization of class statics

(4) Pragma support
    --------------
    - a - need support for language linkages
    - b - make warnings levels different or as errors
    - c - extended information during compilation
    - d - need support for class generation
        - public, extern, local
        - virtual base threshhold (?)

(5) Message Support
    ---------------
    - need to track (file,line,column) in parse tree
    - need extra message information
    - need to react to pragma requesting extra information

(6) Data
    ----
    - need to do data generation

(7) Expressions
    -----------
    - a - creation and destruction of temporaries
    - b - virtual class access and pointer conversion
    - c - complete new, delete
DONE- d - lvalue assignment
    - e - additional support for ==, != (member pointers)
    - f - conversion of class objects
    - g - hook in overloading for function return, assignment, function arg.s
    - h - support ->*, .*
    - i - support :>
DONE- j - lvalue form of ?:

(8) Function Support
    ----------------
DONE- a - work through CTOR, DTOR invocation
    - b - compile CTOR, DTOR routines
DONE- c - definition of member fns (should only require parsing support)
    - d - pure virtual
    - e - "this" pointer can be const or volatile (see pg.177 of ARM)

(9)Operational Support
    -------------------
    - a - review options and upgrade
    - b - implement profile file for options

(10)Error Handling
    --------------

(11)Templates
    ---------

(12)Asm Support
    -----------
    - Fred has it in C; we can likely get it easily

(13)Declarations
    ------------
DONE- a - constructor declarations      (2 days)
DONE- b - function definitions          (1 week)
DONE- c - inline function definitions   (2 days)
    - d - virtual functions             (???)
    - e - virtual bases                 (???)
    - f - friend declarations           (1 week)
    - g - abstract classes              (???)
DONE- h - default function args         (1 week)
DONE- i - dummy arguments               (1 day)

(14)OverLoading
    -----------
    - a - u-d conversion searching
    - b - distinct function checking
    - c - f(&g..) overloading
DONE- d - NULL pointer support
DONE- e - need to fill out the special functions in Chapter 13

(15)Debugging
    ---------
    - should be just code-generation work

(16)C header Files
    --------------
    - need to be edited to add extern "C" { }


Dependencies on others
======================

- 1 - long double: code generation required
- 3(a) - optimization of ptr-delta's: code generator
- 3(b) - lvalue assignment: code generator


Time Estimates
==============
 item    time       who job

- 1    - 2 min.s    - JW - long double: 2 minutes
- 2(b) - 1 day      - JW - code generate to drop unused routines
* 3(b) - 1 day      - JW - lvalue assignment
- 3(c) - 1 day      - JW - new entry-point sequence for new C library
- 3(d) - 2 days     - JW - initialization of class statics
- 4(a) - 1 week     -    - #pragma support for languages
- 4(b) - 2 days     -    - #pragma support for warning levels
- 4(c) - 1 week     -    - extended information listed during compilation
- 4(d) - 1 day      -    - #pragma support for class generation
- 5    - 1 week     - GB - message support for (file,line,column)
- 6    - 2 weeks    - GB - data generation
- 7(a) - 1 week     - JW - class temporaries
- 7(b) - 3 days     - JW - virtual class access and pointer conversion
- 7(c) - 1 day      - JW - complete new, delete
* 7(d) -            - -- - covered in 3(b)
- 7(e) -            - -- - covered in 7(h)
- 7(f) - 2 days     - JW - conversion of class objects (with Greg's support)
- 7(h) - 3 days     - JW - support for ->*, .*
* 7(j) - 1 day      - JW - support for lvalue ?:
* 8(a) - 2 days     - JW - invoke CTOR, DTOR for blocks
- 8(b) - 1 week     - JW - CTOR, DTOR routine compilation
- 8(c) -            - JW - covered in 13(b)
- 8(d) - 1 day      - AS - pure virtual (just an additional check)
- 8(e) - 1 day      - JW - further check "this"
- 9(a) - 2 days     -    - review and fix up command-line options
- 9(b) - 2 days     -    - profile file for options
- 10   - 3 days     - JW - error handling
- 11   - 1 week     - AS - templates
- 13(a)- 2 days     - AS - constructor declarations
- 13(b)- 1 week     - AS - function definitions
- 13(c)- 2 days     - AS - inline function definitions
- 13(d)- (???)      - AS - virtual functions
- 13(e)- (???)      - AS - virtual bases
- 13(f)- 1 week     - AS - friend declarations
- 13(g)- (???)      - AS - abstract classes
- 13(h)- 1 week     -    - default function arg.s
- 14(a)- 1 week     - GB - u-d conversion searching
- 14(b)- 1 day      - GB - distinct function checking
- 14(c)- 2 days     - GB - f(&g..) overloading
- 14(d)- 2 days     - GB - NULL pointer support
- 14(e)- 3 days     - JW - need to fill out the special functions in Chapter 13
- 15   - 1 week     -    - add debugging support
- 16   - 1 day      -    - edit C header files

    days weeks
    ---- -----
JW - 18   2     = 28 man-days (6 man-weeks)
AS -  4   3     = 24 man-days (5 man-weeks)
GB -  5   4     = 25 man-days (5 man-weeks)
   -  8   4     = 28 man-days (6 man-weeks)
                              --------------
                              (22 man-weeks)

Uncertainties
=============

- 2(a) - state of linker support
- 7(i) - support for >:
- 12 - ASM support
- time for 13(d), 13(e), 13(g)


Dependencies:
============

13(b)----------8(e)

13(a)---+------8(b)
        |
        +------8(a)------10
        |
13(e)---+
     \
      \
       \
        +------7(b)
        |
        +------7(c)
        |
        +------7(h)

3c-------------3d

6--------------15

13c-----+------11
        |
4d------+


Schedule: JW
============


completed:
---------

- 3(b) - 1 day      - JW - lvalue assignment
- 7(j) - 1 day      - JW - support for lvalue ?:
- 8(a) - 2 days     - JW - invoke CTOR, DTOR for blocks

not scheduled yet
-----------------
- 1    - 2 min.s    - JW - long double: 2 minutes
- 2(b) - 1 day      - JW - code generate to drop unused routines
- 3(c) - 1 day      - JW - new entry-point sequence for new C library
- 3(d) - 2 days     - JW - initialization of class statics
- 7(a) - 1 week     - JW - class temporaries
- 7(b) - 3 days     - JW - virtual class access and pointer conversion
- 7(c) - 1 day      - JW - complete new, delete
- 7(f) - 2 days     - JW - conversion of class objects (with Greg's support)
- 7(h) - 3 days     - JW - support for ->*, .*
- 8(b) - 1 week     - JW - CTOR, DTOR routine compilation
- 8(e) - 1 day      - JW - further check "this"
- 10   - 3 days     - JW - error handling


Schedule: AS
============

not scheduled yet
-----------------

- 6    - 1 week     - AS - data generation
- 8(d) - 1 day      - AS - pure virtual (just an additional check)
- 11   - 1 week     - AS - templates
- 13(a)- 2 days     - AS - constructor declarations
- 13(b)- 1 week     - AS - function definitions
- 13(c)- 2 days     - AS - inline function definitions
- 13(d)- (???)      - AS - virtual functions
- 13(e)- (???)      - AS - virtual bases
- 13(f)- 1 week     - AS - friend declarations
- 13(g)- (???)      - AS - abstract classes


Schedule: GB
============

not scheduled yet
-----------------

- 5    - 1 week     - GB - message support for (file,line,column)
- 6    - 2 weeks    - GB - data generation
- 14(a)- 1 week     - GB - u-d conversion searching
- 14(b)- 1 day      - GB - distinct function checking
- 14(c)- 2 days     - GB - f(&g..) overloading
- 14(d)- 2 days     - GB - NULL pointer support