Commit Graph

23 Commits

Author SHA1 Message Date
Stephen Kelly 370bf55415 Add the ALIAS target concept for libraries and executables.
* The ALIAS name must match a validity regex.
* Executables and libraries may be aliased.
* An ALIAS acts immutable. It can not be used as the lhs
  of target_link_libraries or other commands.
* An ALIAS can be used with add_custom_command, add_custom_target,
  and add_test in the same way regular targets can.
* The target of an ALIAS can be retrieved with the ALIASED_TARGET
  target property.
* An ALIAS does not appear in the generated buildsystem. It
  is kept separate from cmMakefile::Targets for that reason.
* A target may have multiple aliases.
* An ALIAS target may not itself have an alias.
* An IMPORTED target may not have an alias.
* An ALIAS may not be exported or imported.
2013-08-02 15:21:00 +02:00
Stephen Kelly 10a069b504 Genex: Fix $<CONFIG> with IMPORTED targets and multiple locations.
The old code checked only that there was a LOCATION for the
specified config, but did not check whether the config actually
mapped.

Task-number: 14292
2013-07-24 10:43:02 -04:00
Stephen Kelly cacb938d31 Split the GeneratorExpression test into a third part.
Avoid command lines beyond NMake limits.

 http://open.cdash.org/testDetails.php?test=196577461&build=2949683
 expanded command line '...' too long
2013-06-28 14:58:09 +02:00
Stephen Kelly e6055284b3 Add generator expressions for version comparision. 2013-06-12 14:09:36 +02:00
Stephen Kelly 05bf9721e4 Fix handling of commas in arbitrary content in genexes.
As the comma is the parameter separator, it needs to be re-added
when evaluating to reconstruct arbitrary content.
2013-05-16 19:25:06 +02:00
Jean-Christophe Fillion-Robin 7f3bb8b392 Add $<SEMICOLON> generator expression.
This expression is useful to put a ';' in a command line argument
without dividing the argument during CMake list expansion.
2013-03-12 16:46:03 -04:00
Stephen Kelly 7e707444be Expand includes and defines transitively in 'external' genexes.
This means that we can use expressions of the form

 $<TARGET_PROPERTY:foo,INTERFACE_INCLUDE_DIRECTORIES>

to get a list of the interface include directories of foo, including
those coming from dependencies.

We can't have a test of a target which has a single include directory in
its INCLUDE_DIRECTORIES because the shell on the MSYS platforms transforms
a single include directory to include a prefix, which is not what the test
expects. We test a target with two directories instead as a means to
test a target with no link dependencies.
2013-02-23 09:42:24 +01:00
Stephen Kelly df4d2b28b2 Make it an error for INSTALL_PREFIX to be evaluated.
An empty string is not likely going to produce expected results
in any evaluation context. It is replaced by preprocessing
currently.
2013-01-31 17:27:06 +01:00
Stephen Kelly 34d1ade048 Add the INSTALL_PREFIX genex. 2013-01-27 09:59:26 +01:00
Stephen Kelly b0c8f73eb6 Add the TARGET_NAME generator expression.
It will be used as a preprocessing marker.
2013-01-05 01:05:09 +01:00
Stephen Kelly b2f1700bc7 GenEx: Add expressions to specify build- or install-only values
This is for specifying INCLUDE_DIRECTORIES relevant to the build-location
or the install location for example:

 set_property(TARGET foo PROPERTY
   INTERFACE_INCLUDE_DIRECTORIES
   "$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR};${CMAKE_CURRENT_SOURCE_DIR}>"
   "$<INSTALL_INTERFACE:${CMAKE_INSTALL_PREFIX}/include>"
 )

A 'bar' target can then use:

 set_property(TARGET bar PROPERTY
   INCLUDE_DIRECTORIES
   "$<TARGET_PROPERTY:foo,INTERFACE_INCLUDE_DIRECTORIES>"
 )

and it will work whether foo is in the same project, or an imported target
from an installation location, or an imported target from a build location
generated by the export() command.

Because the generator expressions are only evaluated at build-time, these
new expressions are equivalent to the ZeroNode and OneNode.

The GeneratorExpression test is split into parts. Some shells can't run
the custom command as it is getting too long.
2013-01-05 01:05:08 +01:00
Brad King 11b8a44cfc Merge topic 'fix-genex-CONFIG'
9be64f3 GenEx: Use case insensitive comparison for $<CONFIG:...>
2012-11-06 14:13:10 -05:00
Stephen Kelly 9be64f34c2 GenEx: Use case insensitive comparison for $<CONFIG:...>
This fixes a regression introduced by commit f1eacf0e
(cmGeneratorExpression: Re-write for multi-stage evaluation).
2012-11-05 08:49:25 -05:00
Stephen Kelly 4bacff7a4c GenEx: Test early determination of AND and OR
It should be possible for example to do this:

 "$<AND:${FOO},$<BOOL:${TGT}>,$<BOOL:$<TARGET_PROPERTY:${TGT},PROP>"

such that it works simliarly to the C code:

 if (foo && tgt && tgt->prop())
   {
   }

The example of generator expression code is a little bit contrived as
it could be written other ways with the same functionality. Nevertheless,
as these cases already work and are intentional, test for them.
2012-10-20 14:23:47 +02:00
Stephen Kelly f7ef32b00b GenEx: Replace some failing tests with Borland and NMake makefiles.
The '<<' is a special sequence on those platforms, so it can't appear in
the test.
2012-10-17 16:21:13 -04:00
Stephen Kelly e7230c71fd GenEx: Fix termination bugs in generator expression parser.
Content which is incomplete as a generator expression could cause
segfaults by advancing an iterator beyond end() and dereferencing
it. Such incomplete generator expressions  should be treated as
plain text instead.
2012-10-17 16:21:12 -04:00
Stephen Kelly e2d141d474 GenEx: Parse colon after arguments separator colon specially.
The rationale is similar to that in commit b3d8f5da (GenEx: Parse comma
after colon tokens specially, 2012-10-04), in that colon tokens should
not be parsed as identifier-argument delimiters after the first colon.
2012-10-17 16:20:42 -04:00
Stephen Kelly 78e54b99fe GenEx: Add tests for "0" and "1" expressions with literal commas. 2012-10-09 08:26:54 -04:00
Stephen Kelly d729e8b74c GenEx: Add test for $<BOOL:> with empty parameter. 2012-10-09 08:26:51 -04:00
Stephen Kelly b3d8f5dab7 GenEx: Parse comma after colon tokens specially
Otherwise the comma is treated as plain text by ParseContent.

$<STREQUAL:,> should be valid and true.
$<STREQUAL:,something> should be valid and false.

$<STREQUAL:,,> should be non-valid as it is 3 parameters.
$<STREQUAL:something,,> should be non-valid as it is 3 parameters.

Additionally, this allows reporting the correct error for other
expressions. For example $<TARGET_PROPERTY:,> should be invalid
because it has an empty target and empty property. It shouldn't
attempt to read the property ',' on the 'implicit this' target.
2012-10-09 08:26:43 -04:00
Stephen Kelly e028381bf1 Extend the generator expression language with more logic.
Generator expressions for comparing strings, evaluating
strings as booleans, and for creating literal right-angle-brackets
and commas are added. Those may be needed in some cases
where they appear in literals.
2012-09-28 08:49:21 -04:00
Brad King 9d9f616792 Add $<CONFIG:...> boolean query generator expression
This expression evaluates to '1' or '0' to indicate whether the build
configuration for which the expression is evaluated matches tha named
configuration.  In combination with the "$<0:...>" and "$<1:...>"
expressions this allows per-configuration content to be generated.
2012-08-15 11:44:49 -04:00
Brad King ebf05abda1 Add boolean generator expressions
Add generator expressions that combine and use boolean test results:

 $<0:...>         = empty string (ignores "...")
 $<1:...>         = content of "..."
 $<AND:?[,?]...>  = '1' if all '?' are '1', else '0'
 $<OR:?[,?]...>   = '0' if all '?' are '0', else '1'
 $<NOT:?>         = '0' if '?' is '1', else '1'

These will be useful to evaluate (future) boolean query expressions and
condition content on the results.  Include tests and documentation.
2012-08-15 11:44:49 -04:00