Commit Graph

8 Commits

Author SHA1 Message Date
Richard Smith 8baa50013c [cxx2a] P0614R1: Support init-statements in range-based for loops.
We don't yet support this for the case where a range-based for loop is
implicitly rewritten to an ObjC for..in statement.

llvm-svn: 343350
2018-09-28 18:44:09 +00:00
Richard Smith 03a4aa3d00 Re-commit r273548, reverted in r273589, with a fix to not produce
-Wfor-loop-analysis warnings for a for-loop with a condition variable. In such
a case, the loop condition variable is modified on each iteration of the loop
by definition.

Original commit message:

Rearrange condition handling so that semantic checks on a condition variable
are performed before the other substatements of the construct are parsed,
rather than deferring them until the end. This allows better error recovery
from semantic errors in the condition, improves diagnostic order, and is a
prerequisite for C++17 constexpr if.

llvm-svn: 273600
2016-06-23 19:02:52 +00:00
Peter Collingbourne b77ebd749a Revert r273548, "Rearrange condition handling so that semantic checks on a condition variable"
as it caused a regression in -Wfor-loop-analysis.

llvm-svn: 273589
2016-06-23 18:11:15 +00:00
Richard Smith 19f877c3f2 Rearrange condition handling so that semantic checks on a condition variable
are performed before the other substatements of the construct are parsed,
rather than deferring them until the end. This allows better error recovery
from semantic errors in the condition, improves diagnostic order, and is a
prerequisite for C++17 constexpr if.

llvm-svn: 273548
2016-06-23 08:41:20 +00:00
Douglas Gregor 2eb1c57b9d <rdar://problem/13540921> Fix a crasher when an Objective-C for-in loop gets a non-variable iteration declaration.
llvm-svn: 179053
2013-04-08 20:52:24 +00:00
Douglas Gregor f7106af656 <rdar://problem/13540921> Cope with instantiations of the C++11 range-based for loop that end up being Objective-C fast enumeration loops.
llvm-svn: 179037
2013-04-08 18:40:13 +00:00
Douglas Gregor c430f45d1e <rdar://problem/13540921> Cope with deduced 'auto' in a C++11 for-range loop that is actually an Objective-C fast enumeration loop.
llvm-svn: 179035
2013-04-08 18:25:02 +00:00
Fariborz Jahanian 0021347926 objective-c++11: extend c++11 range-based loop to iterate
over objective-c container collection. // rdar://9293227

llvm-svn: 159847
2012-07-06 19:04:04 +00:00