Commit Graph

52 Commits

Author SHA1 Message Date
Richard Smith d67aea28f6 User-defined literals: reject string and character UDLs in all places where the
grammar requires a string-literal and not a user-defined-string-literal. The
two constructs are still represented by the same TokenKind, in order to prevent
a combinatorial explosion of different kinds of token. A flag on Token tracks
whether a ud-suffix is present, in order to prevent clients from needing to look
at the token's spelling.

llvm-svn: 152098
2012-03-06 03:21:47 +00:00
Dylan Noblesmith c95d81924d Basic: import IntrusiveRefCntPtr<> into clang namespace
The class name is long enough without the llvm:: added.
Also bring in RefCountedBase and RefCountedBaseVPTR.

llvm-svn: 150958
2012-02-20 14:00:23 +00:00
Benjamin Kramer bf8da9d706 Move instantiateTemplateAttribute into the sema namespace, make helpers static.
llvm-svn: 149864
2012-02-06 11:13:08 +00:00
Dylan Noblesmith 2c1dd2716a Basic: import SmallString<> into clang namespace
(I was going to fix the TODO about DenseMap too, but
that would break self-host right now. See PR11922.)

llvm-svn: 149799
2012-02-05 02:13:05 +00:00
Douglas Gregor 3ec6663be0 Back out my heinous hack that tricked the module generation mechanism
into using non-absolute system includes (<foo>)...

... and introduce another hack that is simultaneously more heineous
and more effective. We whitelist Clang-supplied headers that augment
or override system headers (such as float.h, stdarg.h, and
tgmath.h). For these headers, Clang does not provide a module
mapping. Instead, a system-supplied module map can refer to these
headers in a system module, and Clang will look both in its own
include directory and wherever the system-supplied module map
suggests, then adds either or both headers. The end result is that
Clang-supplied headers get merged into the system-supplied module for
the C standard library.

As a drive-by, fix up a few dependencies in the _Builtin_instrinsics
module.

llvm-svn: 149611
2012-02-02 18:42:48 +00:00
Douglas Gregor 8992928274 Thread a TargetInfo through to the module map; we'll need it for
target-specific module requirements.

llvm-svn: 149224
2012-01-30 06:01:29 +00:00
Douglas Gregor a686e1b05d Introduce module attributes into the module map grammar, along with a
single attribute ("system") that allows us to mark a module as being a
"system" module. Each of the headers that makes up a system module is
considered to be a system header, so that we (for example) suppress
warnings there.

If a module is being inferred for a framework, and that framework
directory is within a system frameworks directory, infer it as a
system framework.

llvm-svn: 149143
2012-01-27 19:52:33 +00:00
David Blaikie 8a40f700e6 Remove unreachable code in Clang. (replace with llvm_unreachable where appropriate or when GCC requires it)
llvm-svn: 148292
2012-01-17 06:56:22 +00:00
Douglas Gregor 09a22f071b Don't infer a submodule for a framework's private header, at least for now.
llvm-svn: 148117
2012-01-13 16:54:27 +00:00
Douglas Gregor 04ea962144 Revert previous commit. Something has gone wonky with my local configuration
llvm-svn: 148084
2012-01-13 01:24:11 +00:00
Douglas Gregor da4fda7364 When inferring a module map for a framework, add the 'private'
requirement to headers under PrivateHeaders. We don't want to build
them as part of the module (yet).

llvm-svn: 148082
2012-01-13 01:20:43 +00:00
Douglas Gregor 224d8a74ae When inferring a submodule ID during module creation, look up the
include stack to find the first file that is known to be part of the
module. This copes with situations where the module map doesn't
completely specify all of the headers that are involved in the module,
which can come up when there are very strange #include_next chains
(e.g., with weird compiler/stdlib headers like stdarg.h or float.h).

llvm-svn: 147662
2012-01-06 17:19:32 +00:00
Douglas Gregor fcc54a3b91 If we already have a definition for a top-level module that we deserialized from a module file, don't bother parsing a new definition
llvm-svn: 147574
2012-01-05 00:12:00 +00:00
Douglas Gregor eb90e83085 Store the submodules of a module in source order, as they are stored
in the module map. This provides a bit more predictability for the
user, as well as eliminating the need to sort the submodules when
serializing them.

llvm-svn: 147564
2012-01-04 23:32:19 +00:00
Douglas Gregor 1fb5c3a63a Implement support for module requirements, which indicate the language
features needed for a particular module to be available. This allows
mixed-language modules, where certain headers only work under some
language variants (e.g., in C++, std.tuple might only be available in
C++11 mode).

llvm-svn: 147387
2011-12-31 04:05:44 +00:00
Douglas Gregor 4dc71835f5 Set umbrella directory correctly when we infer a framework module
llvm-svn: 146451
2011-12-12 23:55:05 +00:00
Douglas Gregor 7033127b4e Implement the notion of umbrella directories, which implicity cover
all of the headers below that particular directory. Use umbrella
directories as a clean way to deal with (1) directories/frameworks
that don't have an umbrella header, but don't want to enumerate all of
their headers, and (2) PrivateHeaders, which we never want to
enumerate and want to keep separate from the main umbrella header. 

This also eliminates a little more of the "magic" for private headers,
and frameworks in general.

llvm-svn: 146235
2011-12-09 02:04:43 +00:00
Douglas Gregor 524e33e1f8 Implement umbrella directories for modules, which are similar to
umbrella headers in the sense that all of the headers within that
directory (and eventually its subdirectories) are considered to be
part of the module with that umbrella directory. However, unlike
umbrella headers, which are expected to include all of the headers
within their subdirectories, Clang will automatically include all of
the headers it finds in the named subdirectory.

The intent here is to allow a module map to trivially turn a
subdirectory into a module, where the module's structure can mimic the
directory structure.

llvm-svn: 146165
2011-12-08 19:11:24 +00:00
Douglas Gregor 322f633c1c Tweak the syntax of umbrella headers, so that "umbrella" is treated as
a modifier for a header declarartion, e.g.,

  umbrella header "headername"

Collapse the umbrella-handling code in the parser into the
header-handling code, so we don't duplicate the header-search logic.

llvm-svn: 146159
2011-12-08 18:00:48 +00:00
Douglas Gregor 73141fa98d Within the module representation, generalize the notion of an umbrella
header to also support umbrella directories. The umbrella directory
for an umbrella header is the directory in which the umbrella header
resides.

No functionality change yet, but it's coming.

llvm-svn: 146158
2011-12-08 17:39:04 +00:00
Douglas Gregor ddaa69cb28 Convert paths to native format before constructing a
directory_iterator for them.

llvm-svn: 146154
2011-12-08 16:13:24 +00:00
Douglas Gregor 9458f82df7 Implement inference for the "Private" submodule corresponding to
private headers in a framework.

llvm-svn: 146082
2011-12-07 22:05:21 +00:00
Douglas Gregor e7ab36693b Implement basic support for private headers in frameworks. In essence,
when we load a module map (module.map) from a directory, also load a
private module map (module_private.map) for that directory, if
present. That private module map can inject a new submodule that
captures private headers.

llvm-svn: 146012
2011-12-07 02:23:45 +00:00
Douglas Gregor d6343c99d6 Remove misleading error message
llvm-svn: 145958
2011-12-06 19:57:48 +00:00
Douglas Gregor e89dbc1d98 When inferring a module map for a framework, infer subframework
modules for each of its subframeworks.

llvm-svn: 145957
2011-12-06 19:39:29 +00:00
Douglas Gregor dd005f69f0 Allow inferred submodules for any (sub)module that has an umbrella header
llvm-svn: 145945
2011-12-06 17:34:58 +00:00
Douglas Gregor f2161a70aa Implement modules support for subframeworks (aka embedded
frameworks). A submodule can now be labeled as a "framework", and
header search will look into the appropriate Headers/PrivateHeaders
subdirectories for named headers.

llvm-svn: 145941
2011-12-06 17:16:41 +00:00
Douglas Gregor 930a85cc2d Minor tweak to prepare for submodules with umbrella headers. No actual
functionality change yet.

llvm-svn: 145938
2011-12-06 16:17:15 +00:00
Douglas Gregor a89c5ac4a6 Implement inferred submodules support, which (when requested)
implicitly generates submodules corresponding to the headers that fall
within a module.

llvm-svn: 145887
2011-12-06 01:10:29 +00:00
Douglas Gregor 734410916a Parse inferred submodules in module maps, track their contents in
Module, and (de-)serialize this information. Semantics of inferred
submodules to follow.

llvm-svn: 145864
2011-12-05 22:27:44 +00:00
Douglas Gregor d8bd7537ec Inferred framework modules automatically export anything they import
(i.e., 'export *'), to better match the semantics of headers.

llvm-svn: 145813
2011-12-05 17:40:25 +00:00
Douglas Gregor f5eedd05db Implement support for wildcard exports in modules, allowing a module
to re-export anything that it imports. This opt-in feature makes a
module behave more like a header, because it can be used to re-export
the transitive closure of a (sub)module's dependencies.

llvm-svn: 145811
2011-12-05 17:28:06 +00:00
Douglas Gregor 0093b3c7bf When writing a module file, keep track of the set of (sub)modules that
it imports, establishing dependencies at the (sub)module
granularity. This is not a user-visible change (yet).

llvm-svn: 145808
2011-12-05 16:33:54 +00:00
Douglas Gregor 2b82c2a59e Implementing parsing and resolution of module export declarations
within module maps, which will (eventually) be used to re-export a
module from another module. There are still some pieces missing,
however.

llvm-svn: 145665
2011-12-02 01:47:07 +00:00
Douglas Gregor ef42154c17 Unbreak build with GCC. Clang is too lame to diagnose this particular ill-formedness
llvm-svn: 145539
2011-11-30 23:29:56 +00:00
Douglas Gregor de3ef502a9 Promote ModuleMap::Module to a namespace-scope class in the Basic
library, since modules cut across all of the libraries. Rename
serialization::Module to serialization::ModuleFile to side-step the
annoying naming conflict. Prune a bunch of ModuleMap.h includes that
are no longer needed (most files only needed the Module type).

llvm-svn: 145538
2011-11-30 23:21:26 +00:00
Douglas Gregor 6902197407 Implement (de-)serialization of the description of a module and its
submodules. This information will eventually be used for name hiding
when dealing with submodules. For now, we only use it to ensure that
the module "key" returned when loading a module will always be a
module (rather than occasionally being a FileEntry).

llvm-svn: 145497
2011-11-30 17:33:56 +00:00
Benjamin Kramer 382eaadaa5 Use raw_ostream::indent.
llvm-svn: 145492
2011-11-30 15:07:30 +00:00
Douglas Gregor 4f3fa713bf Switch the module map printer over to
raw_ostream::write_escaped. Thanks, Benjamin!

llvm-svn: 145491
2011-11-30 15:00:49 +00:00
Douglas Gregor fe96ee0307 Escape strings when printing module maps, for silly operating systems
that use \ as a separator.

llvm-svn: 145439
2011-11-29 22:27:12 +00:00
Douglas Gregor f545f67de3 Switch on-demand module building over to use module maps, always. When
we infer the module map, we'll just print the module map to a
temporary file and generate the module using that.

llvm-svn: 145436
2011-11-29 21:59:16 +00:00
Douglas Gregor 514b636ada Teach the module import mechanism how to rebuild modules expressed via
module map, rather than assuming that there is an umbrella
header. This allows us to automatically build umbrella-less modules. 

llvm-svn: 145415
2011-11-29 19:06:37 +00:00
Douglas Gregor d28d1b8dc0 Expose the printing of module maps as part of the ModuleMap::Module
interface. No functionality change.

llvm-svn: 145411
2011-11-29 18:17:59 +00:00
Douglas Gregor 755b205519 Add the notion of "framework" modules to module maps. Framework
modules (obviously) describe frameworks, and understand the header
layout of frameworks.

llvm-svn: 144921
2011-11-17 22:09:43 +00:00
Douglas Gregor 5acdf59ebc Actually free memory for the module maps
llvm-svn: 144880
2011-11-17 02:05:44 +00:00
Douglas Gregor 56c6401306 When we're loading a framework header, first try to turn the framework
into a module. This module can either be loaded from a module map in
the framework directory (which isn't quite working yet) or inferred
from an umbrella header (which does work, and replaces the existing
hack).

llvm-svn: 144877
2011-11-17 01:41:17 +00:00
Douglas Gregor b65dbfff52 A module with an umbrella header assumes that all of the headers in
the umbrella header's directory and its subdirectories are part of the
module (that's why it's an umbrella). Make sure that these headers are
considered to be part of the module for lookup purposes.

llvm-svn: 144859
2011-11-16 23:02:25 +00:00
Benjamin Kramer 1871ed3d79 Silence unused variable warning.
llvm-svn: 144500
2011-11-13 16:52:09 +00:00
Douglas Gregor 88bdfb0ed9 Teach the search for modules to consider modules described by a module
map, so long as they have an umbrella header. This makes it possible
to introduce a module map + umbrella header for a given set of
headers, to turn it into a module.

There are two major deficiencies here: first, we don't go hunting for
module map files when we just see a module import (so we won't know
about the modules described therein). Second, we don't yet have a way
to build modules that don't have umbrella headers, or have incomplete
umbrella headers.

llvm-svn: 144424
2011-11-11 23:20:24 +00:00
Douglas Gregor ab0c8a849a Wire up the mapping from header files mentioned in module maps over to
the corresponding (top-level) modules. This isn't actually useful yet,
because we don't yet have a way to build modules out of module maps.

llvm-svn: 144410
2011-11-11 22:18:48 +00:00