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  • 10 commits
  • 27 files changed
  • 1 contributor

Commits on Jan 12, 2012

  1. compiler: rename unique_{free,dump} to symtab_* 

    Leaving "unique" and "unique_n" for now because I can't decide on a
good name.
    @wpwrak
    wpwrak committed Jan 12, 2012
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  2. compiler: optionally warn if using a variable in the wrong section (WIP) 

    This warning is currently only accessible via ptest, with the option
-Wsection.

To do:
- generalize the notification mechanism (currently printf)
- consider also handling variables like x, y, rad
    @wpwrak
    wpwrak committed Jan 12, 2012
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  3. compiler: added per-symbol flags to symbol table

    @wpwrak
    wpwrak committed Jan 12, 2012
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  4. compiler: -Wundefined to warn about undefined variables (WIP) 

    Limitations:
- complains about iterative calculations like  avg = A*avg+(1-A)*VALUE
- no way to explicitly initialize variables to zero (making the warning
  go away)
    @wpwrak
    wpwrak committed Jan 12, 2012
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  5. regression tests: attempt only valid assignments in initial/global se… 

    …ction

Many tests consisted of a single line like  x = something
which are not valid, because "x" is not a per-frame variable.

The next commit will slightly tighten the checks the compiler
performs even without code generation, so we need to make the
test cases a little more correct.
    @wpwrak
    wpwrak committed Jan 12, 2012
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  6. compiler: allow explicit zero-initialization to suppress warning 

    This is applicable to all variables, not only per-frame variables.
    @wpwrak
    wpwrak committed Jan 12, 2012
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  7. symtab: rename "syms" to user_syms, for export; minor cleanup

    @wpwrak
    wpwrak committed Jan 12, 2012
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  8. compiler: symbol table can now be iterated 

    symtab.h defines a macro forall_syms() that iterates over all symbols.
This means that it's now trivial to implement symtab_dump, and we can
therefore remove it.
    @wpwrak
    wpwrak committed Jan 12, 2012
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  9. compiler: -Wundefined now also works for old-style patches 

    Old style assumes everything is implicitly initialized to zero.
We can still report identifiers that are never assigned to, though.

New style allows explicit initialization and thus can report
uninitialized variables immediately when they're read.
    @wpwrak
    wpwrak committed Jan 12, 2012
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  10. parser.y: tok2op wasn't "static", oops

    @wpwrak
    wpwrak committed Jan 12, 2012
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