depot - monorepo for the virus lounge

Age	Commit message (Collapse)	Author	Files	Lines
2010-10-24	* Keep attribute sets in sorted order to speed up attribute lookups.	Eelco Dolstra	1	-1/+1
	* Simplify the representation of attributes in the AST. * Change the behaviour of listToAttrs() in case of duplicate names.
2010-10-24	* Store attribute sets as a vector instead of a map (i.e. a red-black	Eelco Dolstra	1	-7/+7
	tree). This saves a lot of memory. The vector should be sorted so that names can be looked up using binary search, but this is not the case yet. (Surprisingly, looking up attributes using linear search doesn't have a big impact on performance.) Memory consumption for $ nix-instantiate /etc/nixos/nixos/tests -A bittorrent.test --readonly-mode on x86_64-linux with GC enabled is now 185 MiB (compared to 946 MiB on the trunk).
2010-10-22	* Store Value nodes outside of attribute sets. I.e., Attr now stores	Eelco Dolstra	1	-7/+7
	a pointer to a Value, rather than the Value directly. This improves the effectiveness of garbage collection a lot: if the Value is stored inside the set directly, then any live pointer to the Value causes all other attributes in the set to be live as well.
2010-06-10	* builtins.toXML: propagate the string context. This is a regression	Eelco Dolstra	1	-0/+1
	from the old ATerm-based evaluator.
2010-05-07	(no commit message)	Eelco Dolstra	1	-0/+2

2010-05-07	* Sync with the trunk.	Eelco Dolstra	1	-19/+43

2010-05-07	* Keep track of the source positions of attributes.	Eelco Dolstra	1	-5/+6

2010-04-15	* Store lists as lists of pointers to values rather than as lists of	Eelco Dolstra	1	-1/+1
	values. This improves sharing and gives another speed up. Evaluation of the NixOS system attribute is now almost 7 times faster than the old evaluator.
2010-04-13	* Use a symbol table to represent identifiers and attribute names	Eelco Dolstra	1	-4/+4
	efficiently. The symbol table ensures that there is only one copy of each symbol, thus allowing symbols to be compared efficiently using a pointer equality test.
2010-04-12	* Don't use ATerms for the abstract syntax trees anymore. Not	Eelco Dolstra	1	-29/+14
	finished yet.
2010-04-07	* expr-to-xml -> value-to-xml.	Eelco Dolstra	1	-0/+149