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Format: Default to switch cases on separate lines by default 

Currently, the format enforces single lines when possible, but does
not enforce readable column-based alignment (and, moreover, *removes*
such manually added alignment:

    switch( m_orientation )
    {
    case PIN_RIGHT: m_orientation = PIN_UP; break;
    case PIN_UP: m_orientation = PIN_LEFT; break;
    }

Change this to multi-line by default:

    switch( m_orientation )
    {
    case PIN_RIGHT:
        m_orientation = PIN_UP;
        break;
    case PIN_UP:
        m_orientation = PIN_LEFT;
        break;
    }

If the developer wishes for column-aligned single-line cases, this
is permitted, but much be done manually:

    switch( m_orientation )
    {
    case PIN_RIGHT: m_orientation = PIN_DOWN;  break;
    case PIN_UP:    m_orientation = PIN_RIGHT; break;
    }

CHANGE: the _clang-format file to reflect this, and add note about
manual override in the dev docs.

(cherry picked from commit 272c045c37)
This commit is contained in:
John Beard 2019-05-06 22:23:51 +01:00
parent c56e540e5d
commit 89d198659c
2 changed files with 15 additions and 1 deletions
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14
Documentation/development/coding-style-policy.md
View File

@ -467,6 +467,20 @@ The case statement is to be indented to the same level as the switch.
}
~~~~~~~~~~~~~
It is permitted to place all cases on a single line each, if that makes the
code more readable. This is often done for look-ups or translation functions. In
this case, you will have to manually align for readability as appropriate and
reject clang-format's suggested changes, if you use it:
~~~~~~~~~~~~~{.cpp}
switch( m_orientation )
{
case PIN_RIGHT: m_orientation = PIN_UP; break;
case PIN_UP: m_orientation = PIN_LEFT; break;
case PIN_LEFT: m_orientation = PIN_DOWN; break;
case PIN_DOWN: m_orientation = PIN_RIGHT; break;
}
~~~~~~~~~~~~~
# 5. License Statement # {#license_statement}
There is a the file copyright.h which you can copy into the top of

2
_clang-format
View File

@ -7,7 +7,7 @@ AlignOperands: true
AlignTrailingComments: true
AllowAllParametersOfDeclarationOnNextLine: true
AllowShortBlocksOnASingleLine: false
AllowShortCaseLabelsOnASingleLine: true
AllowShortCaseLabelsOnASingleLine: false
AllowShortFunctionsOnASingleLine: false
AllowShortIfStatementsOnASingleLine: false
AllowShortLoopsOnASingleLine: false