[PATCH] D42684: clang-format: Allow optimizer to break template declaration.

[Francois Ferrand via Phabricator via cfe-commits]

Typz created this revision.
Typz added reviewers: krasimir, djasper, klimek.

Introduce ``PenaltyBreakTemplateDeclaration`` to control the penalty,
and change ``AlwaysBreakTemplateDeclarations`` to an enum with 3 modes:

- ``None`` for automatic (e.g. penalty based) wrapping of template

declaration

- ``BeforeFunction`` for always wrapping before functions, and applying

penalty before classes (e.g. same as legacy behavior when
AlwaysBreakTemplateDeclarations=false)

- ``Always`` for always wrapping (e.g. same as legacy behavior when

AlwaysBreakTemplateDeclarations=true)


Repository:
  rC Clang

https://reviews.llvm.org/D42684

Files:
  include/clang/Format/Format.h
  lib/Format/ContinuationIndenter.cpp
  lib/Format/Format.cpp
  lib/Format/TokenAnnotator.cpp
  unittests/Format/FormatTest.cpp

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