Commit Graph

14 Commits

Author SHA1 Message Date
Jordan Rose
95ff29b6e2 Make deserialization of known protocol adopters lazy.
...by adding a new callback to ModuleLoader: loadDeclsConformingTo.
This is used only when the type checker doesn't have enough contextual
information to resolve an expression involving a literal, so it's
possible many *LiteralConvertible types will never be loaded.

Deserialization of types with conversion methods is still eager, since
there's no easy hook to tell when they're needed, but the list has been
renamed to refer to any decls that need to be eagerly deserialized, in
case we need it for other purposes in the future.

This probably won't help much in a real program, but it cuts the test
run time by about 5-10% in my build.

Swift SVN r7268
2013-08-15 18:43:40 +00:00
Jordan Rose
bca05dab59 [serialization] Lazily load top-level decls, extensions, and operators.
This switches from simple lists of decls to name-based on-disk hash tables,
which allows decls to be loaded lazily when doing simple lookup (but not
code completion, at least not yet).

The on-disk hash table implementation is borrowed from Clang; eventually
it will be pushed down to LLVM's Support library. (Fortunately the
implementation is header-only.)

This breaks a few tests that rely on magic protocols like
IntegerLiteralConvertible, because the type checker won't have seen the
types that conform to those protocols yet. This will be fixed by doing
an additional "hey, modules, got any of these?" lookup.

Swift SVN r7259
2013-08-15 17:31:44 +00:00
Jordan Rose
3e7eef56e7 Kill [stdlib] attribute.
Now that we have true serialized modules, the standard library can import
the Builtin module without any special direction (beyond -parse-stdlib),
and anyone can include those modules without special direction.

Swift SVN r6752
2013-07-30 21:27:42 +00:00
Jordan Rose
8e081367ca Basic implementation of lookupVisibleDecls() for serialized modules.
This involved threading it through ModuleLoader, as with all the other
module-generic callbacks. I plan to collapse a bit of the chaining, but
unfortunately not that much.

This brings back the CodeCompletion tests.

Swift SVN r6527
2013-07-23 23:10:28 +00:00
Jordan Rose
3087e8d5ea Add the notion of "re-exported" modules, and use that where it makes sense.
Rather than automatically re-exporting or not re-exporting every import in
a TranslationUnit, we'll eventually want to control which imports are local
(most of them) and which imports are shared with eventual module loaders.
It's probably not worth implementing this for TranslationUnit, but
LoadedModule can certainly do something here.

Currently, a LoadedModule is even more permissive than a TranslationUnit:
all imports are re-exported. We can lock down on this once we have a
re-export syntax.

Swift SVN r6523
2013-07-23 23:10:17 +00:00
Jordan Rose
110d644297 Provide a skeleton for re-exports from serialized modules...
...and use it for shadowed modules (e.g. the Clang module "Foundation"
referenced by the Swift module "Foundation"), so that we can actually
find "NSString" when building AppKit.

Additionally, record shadowed modules as dependencies, so that they can
be loaded when the adapter module is loaded.

Swift SVN r6522
2013-07-23 23:10:13 +00:00
Jordan Rose
929d86bb16 [serialization] Add support for prefix and postfix operators.
This includes adding an operator lookup table to ModuleFile. Operators are
keyed by a (name, fixity) pair.

Swift SVN r6078
2013-07-08 23:41:06 +00:00
Chris Lattner
c03d4454a0 implement support for a new [stdlib] attribute that can be slapped on an import decl.
This causes the SourceLoader to recursively parse the imported module in standard 
library mode, giving it access to the Builtin module.

This is all a terrible hack and should be ripped out with great victory someday, but 
until we have binary modules that persist the build setting used to produce the 
module, this is the best we can do.



Swift SVN r5847
2013-06-27 21:31:15 +00:00
Jordan Rose
7a13e58b38 [serialization] Hook up basic name lookup for imported modules.
Also, explicitly list the top-level decls in a module. Eventually this
will be a proper lazily-loaded identifier-DeclID map, but for now it's
just a flat list of IDs to deserialize as soon as a lookup is
requested.

We can now parse and typecheck a file that imports typealiases of builtin
types.

Swift SVN r5325
2013-05-25 01:34:57 +00:00
Jordan Rose
ea0d5031ab [serialization] Codify the bringup hack with a special note in the module file.
The bringup hack, again, is to just process the module source files as a
TranslationUnit if the module doesn't accurately represent the original
source. Currently this happens if the module is not empty, or if it imports
/anything/, since we don't actually serialize anything yet.

This also cleans up the decl/type serialization skeleton a bit.

Swift SVN r5238
2013-05-20 22:50:39 +00:00
Doug Gregor
8114ce16f8 Use the list of extensions of a nominal type for name lookup into that type.
This replaces the obscure, inefficient lookup into extensions with
something more straightforward: walk all of the known extensions
(available as a simple list), then eliminate any declarations that
have been shadowed by other declarations. The shadowing rules still
need to consider the module re-export DAG, but we'll leave that for
later.

As part of this, keep track of the last time we loaded extensions for
a given nominal type. If the list of extensions is out-of-date with
respect to the global generation count (which tracks resolved module
imports), ask the modules to load any additional extensions. Only the
Clang module importer can currently load extensions in this manner.


Swift SVN r5223
2013-05-20 18:06:51 +00:00
Jordan Rose
f9c4046896 [serialization] Validate the control block -- is the module too new?
Not so interesting right now, but eventually we'll be validating other
things as well, and it's best not to have FIXMEs lying around.

Swift SVN r5175
2013-05-16 00:23:13 +00:00
Jordan Rose
ebcff9685f [serialization] Hook up a module loader that just builds a TranslationUnit.
The writer stores the paths to the .swift files, the reader just loads
those .swift files. Fun!

No version validation yet. No separate ModuleReader class yet. No use of
the SerializedModule architecture yet, except for creating a dummy module
when the .sm file is corrupted.

Swift SVN r5164
2013-05-13 21:41:23 +00:00
Jordan Rose
73b6269484 [serialization] Add a trivial Swift module loader.
Currently, the Swift module loader just looks for a .sm file, verifies the
signature "SMod", and produces an empty DeclContext.

Swift SVN r5126
2013-05-09 20:49:29 +00:00