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Fix preprocessor expansion strategy #33

Merged
merged 13 commits into from
Oct 10, 2021
Merged

Fix preprocessor expansion strategy #33

merged 13 commits into from
Oct 10, 2021

Commits on Oct 3, 2021

  1. Preprocessor: redesign the expansion strategy for macros 

    The previous macro expansion implementation had several flaws regarding
order and re-expansion logic. Those were fixed by a complete rewrite
of the expandMacro() and its nested code paths.
Also remove special handling for 'self' macros. In the future, the 'empty'
macro will be removed as well.
    @doppioandante
    doppioandante committed Oct 3, 2021
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  2. Preprocessor: add more test cases

    @doppioandante
    doppioandante committed Oct 3, 2021
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  3. Preprocessor: handle token pasting when arguments are empty

    @doppioandante
    doppioandante committed Oct 3, 2021
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  4. Preprocessor: emulate gcc by not rescanning completely expanded token… 

    …s at beginning

These modifications strive for compatibility with gcc, but I'm not sure
it is strictly mandated by the standard
    @doppioandante
    doppioandante committed Oct 3, 2021
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  5. Preprocessor: add more testcases

    @doppioandante
    doppioandante committed Oct 3, 2021
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  6. Preprocessor: fix ## concatenation when used multiple times in sequence

    @doppioandante
    doppioandante committed Oct 3, 2021
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  7. Preprocessor: don't put spaces between tokens inside stringification

    @doppioandante
    doppioandante committed Oct 3, 2021
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  8. Preprocessor: escape \ during stringification

    @doppioandante
    doppioandante committed Oct 3, 2021
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  9. Preprocessor: skip newlines when searching for first macro call lparen

    @doppioandante
    doppioandante committed Oct 3, 2021
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Commits on Oct 6, 2021

  1. Preprocessor: remove old preprocessor code path

    @doppioandante
    doppioandante committed Oct 6, 2021
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  2. Preprocessor: apply suggestions from code review 

    Mainly changes to the control flow of the macro expansion/rescan loop

Co-authored-by: Veikka Tuominen <git@vexu.eu>
    @doppioandante @Vexu
    doppioandante and Vexu committed Oct 6, 2021
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  3. Preprocessor: remove debugging statements and functions

    @doppioandante
    doppioandante committed Oct 6, 2021
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  4. zig fmt

    @doppioandante
    doppioandante committed Oct 6, 2021
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