Commit Graph

26 Commits

Author SHA1 Message Date
Stephen Kelly 6c7dad41d9 cmDefinitions: Make Get method static. 2015-05-01 19:45:05 +02:00
Stephen Kelly a7ce0c7bc0 cmDefinitions: Make GetInternal method static.
For some reason, using recursion here is faster to configure ParaView
than using a loop.  Probably some compiler optimization is inhibited
by using a loop.

Co-Author: Brad King <brad.king@kitware.com>
2015-05-01 19:44:35 +02:00
Stephen Kelly 191573f792 cmDefinitions: Remove Parent pointer.
All structural knowledge of the stack of scopes is now external.
2015-05-01 19:34:59 +02:00
Stephen Kelly 8b1745a1c5 cmDefinitions: Accept varStack iterators in Get API. 2015-05-01 19:34:59 +02:00
Stephen Kelly 5ccff6408c cmDefinitions: Externalize looping for ClosureKeys. 2015-04-30 00:32:18 +02:00
Stephen Kelly f79cd99d6d cmDefinitions: Implement MakeClosure in terms of reverse iterators.
Iterate directly over the parent content provided by cmMakefile.
2015-04-29 23:54:20 +02:00
Stephen Kelly aa4d1ee80f cmDefinitions: Convert MakeClosure into a static method.
Accept a range of cmDefinitions*.
2015-04-29 23:54:17 +02:00
Stephen Kelly 60becdc65c cmDefinitions: Implement MakeClosure in terms of a list of ancestors. 2015-04-29 23:54:02 +02:00
Stephen Kelly 24885d4efa cmDefinitions: Replace private constructor with MakeClosure. 2015-04-29 22:51:46 +02:00
Stephen Kelly 012a75a00f cmDefinitions: Make ClosureKeys API vector-based.
Construct the final list directly in a named return value.  Use
a single set to track bindings already found.

Co-Author: Brad King <brad.king@kitware.com>
2015-04-29 22:51:28 +02:00
Stephen Kelly ca9fa77d5d cmDefinitions: Inline GetClosureKeys implementation. 2015-04-29 22:49:05 +02:00
Stephen Kelly 818bf727c1 cmDefinitions: Change LocalKeys to return a vector.
This is more efficient and we lose nothing.
2015-04-29 22:49:05 +02:00
Stephen Kelly 60200ca508 cmDefinitions: Add an Erase method. 2015-04-29 22:48:12 +02:00
Stephen Kelly a3358faca1 cmDefinitions: Inline SetInternal method. 2015-04-29 00:18:13 +02:00
Stephen Kelly 2337034442 cmDefinitions: Remove unused Set return value. 2015-04-29 00:18:13 +02:00
Stephen Kelly b9f4dd39bb cmDefinitions: Remove unused method. 2015-04-29 00:17:38 +02:00
Brad King 8eb64831be Merge topic 'revert-definition-map-lookup'
d1b62185 Merge branch 'parent-scope-tests' into variable-pull-failure
5f414cef Revert "cmDefinitions: Don't store parent lookups"
e0c0b1ac test: add a test for PARENT_SCOPE with multiple scopes
064c415d test: add test for PARENT_SCOPE behavior
2014-10-27 08:32:26 -04:00
Ben Boeckel 5f414cefb6 Revert "cmDefinitions: Don't store parent lookups"
This reverts commit 5abfde6cb8.

The behaviors associated with implicit pulldown on variable lookup
seriously conflict with the optimizations made in these commits.
Basically, since values were copied upon variable lookup, not just on
PARENT_SCOPE, coupled with PARENT_SCOPE's behavior based on whether the
variable is in the current scope or not causes serious problems with not
storing a value for every variable at every scope.

The commit changed behavior of the following example, among other cases:

  function(test_set)
    set(blah "value2")
    message("before PARENT_SCOPE blah=${blah}")
    set(blah ${blah} PARENT_SCOPE)
    message("after PARENT_SCOPE blah=${blah}")
  endfunction()
  set(blah value1)
  test_set()
  message("in parent scope, blah=${blah}")

Reported-by: Alex Merry <alex.merry@kde.org>
Reported-by: Ben Cooksley <bcooksley@kde.org>
2014-10-24 13:31:21 -04:00
Ben Boeckel 5abfde6cb8 cmDefinitions: Don't store parent lookups
When looking up scopes, it is faster to not store the lookup locally to
keep the maps smaller and avoid extra allocations and rebalancing.
2014-06-09 14:46:45 -04:00
Ben Boeckel e17a69bc74 cmDefinitions: Use a hashmap for faster checks
The hash map is much faster at checking that the map won't have what
we're looking for so that we can just go to the parent scope instead.
2014-06-09 14:46:45 -04:00
Ben Boeckel 11ed3e2cfe stringapi: Add string overload for the Def struct 2014-03-08 13:05:38 -05:00
Ben Boeckel 270eb96df0 strings: Remove cmStdString references
Casts from std::string -> cmStdString were high on the list of things
taking up time. Avoid such implicit casts across function calls by just
using std::string everywhere.

The comment that the symbol name is too long is no longer relevant since
modern debuggers alias the templates anyways and the size is a
non-issue since the underlying methods are generated since it's
inherited.
2014-03-08 13:05:35 -05:00
Ben Boeckel 3742bb0d32 stringapi: Use strings for variable names
Variable names are always generated by CMake and should never be NULL.
2014-03-08 13:05:28 -05:00
Ben Boeckel 52f9637174 Add method to get the local scope variables 2010-09-01 13:08:14 -04:00
Brad King 96afb12087 Convert CMake to OSI-approved BSD License
This converts the CMake license to a pure 3-clause OSI-approved BSD
License.  We drop the previous license clause requiring modified
versions to be plainly marked.  We also update the CMake copyright to
cover the full development time range.
2009-09-28 11:43:28 -04:00
Brad King fd10589995 ENH: Improve dynamic variable scope implementation
Previously each new variable scope (subdirectory or function call) in
the CMake language created a complete copy of the key->value definition
map.  This avoids the copy using transitive lookups up the scope stack.
Results of queries answered by parents are stored locally to maintain
locality of reference.

The class cmDefinitions replaces cmMakefile::DefinitionsMap, and is
aware of its enclosing scope.  Each scope stores only the definitions
set (or unset!) inside it relative to the enclosing scope.
2009-07-22 14:22:45 -04:00