Review Request 129759: Fix the extraction of parameter initialisation.

[Shaheed Haque]

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https://git.reviewboard.kde.org/r/129759/
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Review request for Extra Cmake Modules.


Repository: extra-cmake-modules


Description
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This involves reverting a change (see below). Without this reversion, we get for example:

sip: .../kfontutils.sip:14: Compulsory argument given after optional argument

Where the .h file says:

============
qreal KGUIADDONS_EXPORT adaptFontSize(QPainter &painter,
                                      const QString &text,
                                      qreal width,
                                      qreal height,
                                      qreal maxFontSize = 28.0,
                                      qreal minFontSize = 1.0,
                                      AdaptFontSizeOptions flags = NoFlags);
============

while the SIP file says (note the flags parameter is missing its initialiser):

    qreal adaptFontSize(QPainter & painter, ..., double minFontSize = 1.0, QFlags<KFontUtils::AdaptFontSizeOption> flags);

With this change, the SIP file says:

    qreal adaptFontSize(QPainter & painter, ..., double minFontSize = 1.0, QFlags<KFontUtils::AdaptFontSizeOption> flags = NoFlags);

There are many instances of this issue, but in only a handful of cases such
as this example from kguiaddons, the resulting SIP code does not compile. That
is the subject of a pending fix local to kguiaddons.

The details of the bug are that the test on "member.kind.is_expression()" does
not work reliably for unknown reasons. (In the case of KFontUtils::adaptFontSize's
flags argument, the member.kind is TYPE_REF). Also, the logic around the isQFlags
variable seems to be unclear and possibly broken.

The commit being reverted is in a github fork, and its original details are:

    Title: "Try to make a better implementation of determining init value"
    Commit ID: bcf1d6078f2c544d3908490ae538d2b97ca997d3


Diffs
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  find-modules/sip_generator.py 10be147711540437d38153fa8fe859bd34d7aa6c 

Diff: https://git.reviewboard.kde.org/r/129759/diff/


Testing
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Thanks,

Shaheed Haque

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