Commit Graph

706 Commits

Author SHA1 Message Date
Jordan Rose
8707fa7000 [serialization] Add BCGenericRecordLayout, for shared layouts.
Micro-optimization in module file size and loading complexity.
No functionality change.

Swift SVN r5240
2013-05-20 22:50:42 +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
Jordan Rose
b9b0789908 [serialization] Sketch out high-level decl/type serialization.
This is basically modeled off of Clang's ASTWriter: write out all decls
and types en masse, then write out a list of offsets for quick access later,
and use the indexes into the offset lists as module-unique IDs for the decls
and types.

No decls or types are actually being serialized yet, and I haven't done
any of the work necessary for multi-module support (which would assume
offsets don't start at 0). There's also no reader support yet.

Swift SVN r5237
2013-05-20 22:50:35 +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
b8cf3497a2 [serialization] Change file signature to something non-ASCII.
Based on feedback by Doug. This signature is fairly arbitrary: it's the
UTF-8 encoding of U+2828 SPARKLES, followed by the number 14 to represent
2014. (Hopefully the format will have stabilized by 2014.)

(Why not 0x00 or 0x01 for the last byte? Because it's more likely we'll
collide with someone else being cute. Why not 0x0D / 13? Because that's
\r and could conceivably appear in real Unicode text. No one uses 0x0E
these days.)

Swift SVN r5134
2013-05-09 22:58:08 +00:00
Jordan Rose
1d2dfdb498 [serialization] Push record layout info into a private header.
The reader and writer will need to share this information, but there's no
reason anyone else will need it.

Swift SVN r5133
2013-05-09 22:58:07 +00:00