depot - monorepo for the virus lounge

Age	Commit message (Collapse)	Author	Files	Lines
2010-04-16	* Updated some more primops.	Eelco Dolstra	1	-10/+13

2010-04-16	* Improve sharing a bit.	Eelco Dolstra	1	-4/+7

2010-04-16	* Remove some redundant tests.	Eelco Dolstra	1	-3/+3

2010-04-16	* In an nested `with' where the inner with is a variable (`with ...;	Eelco Dolstra	1	-1/+7
	with someVar; ...'), the contents of the variable would be clobbered. (The attributes in the outer `with' were added to the variable.)
2010-04-15	* Store lists as lists of pointers to values rather than as lists of	Eelco Dolstra	1	-16/+17
	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.
2010-04-14	* Better stats.	Eelco Dolstra	1	-4/+13

2010-04-14	* Implemented inherit.	Eelco Dolstra	1	-18/+12

2010-04-14	* Fix builtins.	Eelco Dolstra	1	-11/+9

2010-04-14	* Refactoring: move variable uses to a separate class.	Eelco Dolstra	1	-29/+13

2010-04-14	* Implemented withs.	Eelco Dolstra	1	-14/+23

2010-04-14	* After parsing, compute level/displacement pairs for each variable	Eelco Dolstra	1	-36/+55
	use site, allowing environments to be stores as vectors of values rather than maps. This should speed up evaluation and reduce the number of allocations.
2010-04-14	* Change the semantics of "with" so that inner "withs" take	Eelco Dolstra	1	-23/+2
	precedence, i.e. `with {x=1;}; with {x=2;}; x' evaluates to 2'. This has a simpler implementation and seems more natural. There doesn't seem to be any code in Nixpkgs or NixOS that relies on the old behaviour.
2010-04-13	* Use std::tr1::unordered_set instead of std::set for the symbol	Eelco Dolstra	1	-0/+1
	table. This gives a 10% speed increase on `nix-instantiate /etc/nixos/nixos -A system --readonly-mode'.
2010-04-13	* Evaluate lets directly (i.e. without desugaring to `rec { attrs...;	Eelco Dolstra	1	-0/+25
	<let-body> = e; }.<let-body>). This prevents the unnecessary allocation of an attribute set.
2010-04-13	* Use a symbol table to represent identifiers and attribute names	Eelco Dolstra	1	-19/+26
	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	* Finished the ATerm-less parser.	Eelco Dolstra	1	-3/+30

2010-04-12	* Indented strings.	Eelco Dolstra	1	-0/+6

2010-04-12	* More missing constructs.	Eelco Dolstra	1	-69/+59

2010-04-12	* Don't use ATerms for the abstract syntax trees anymore. Not	Eelco Dolstra	1	-223/+244
	finished yet.
2010-04-12	* Hack to support builderDefs expressions.	Eelco Dolstra	1	-1/+7

2010-04-12	* Doh.	Eelco Dolstra	1	-1/+1

2010-04-09	* Keep more statistics about stack space usage.	Eelco Dolstra	1	-39/+66
	* Reduce stack space usage.
2010-04-08	* Remove a lot of dead code.	Eelco Dolstra	1	-492/+8

2010-04-08	* Fix blackholing. If evaluation fails due to an assertion failure,	Eelco Dolstra	1	-2/+8
	then the blackhole has to be removed to ensure that repeated evaluation of the same value gives an assertion failure again rather than an "infinite recursion" error.
2010-04-07	* Update autoCallFunction() and findAlongAttrPath().	Eelco Dolstra	1	-27/+37

2010-04-07	* Implemented the primops necessary for generating the NixOS manual.	Eelco Dolstra	1	-24/+28

2010-04-06	* In eval(), don't use the target value `v' as a temporary.	Eelco Dolstra	1	-13/+17
	Overwriting `v' breaks when the expression evaluation to an assertion failure or throw.
2010-04-01	* Quick hack to make coerceToString work more or less correctly on	Eelco Dolstra	1	-1/+4
	nested lists. `nix-instantiate' can now evaluate the NixOS system derivation attribute correctly (in 2.1s on my laptop vs. 6.2s for the trunk).
2010-04-01	* Improve sharing.	Eelco Dolstra	1	-3/+2

2010-04-01	* Functions are incomparable.	Eelco Dolstra	1	-6/+13

2010-04-01	* Make `derivation' lazy again for performance. It also turns out	Eelco Dolstra	1	-9/+1
	that there are some places in Nixpkgs (php_configurable / composableDerivation, it seems) that call `derivation' with incorrect arguments (namely, the `name' attribute missing) but get away with it because of laziness.
2010-03-31	* Fixed the trace primop and path comparison.	Eelco Dolstra	1	-0/+3
	* Removed exprToString and stringToExpr because there is no ATerm representation to work on anymore (and exposing the internals of the evaluator like this is not a good idea anyway).
2010-03-31	* Handle string contexts. `nix-instantiate' can now correctly compute	Eelco Dolstra	1	-63/+25
	the `firefoxWrapper' attribute in Nixpkgs, and it's about 3 times faster than the trunk :-)
2010-03-31	* Cache parse trees to prevent repeated parsing of imported Nix	Eelco Dolstra	1	-1/+8
	expressions.
2010-03-31	* Implemented derivations.	Eelco Dolstra	1	-10/+31

2010-03-31	* Implemented `rec { inherit ...; }'.	Eelco Dolstra	1	-0/+14

2010-03-31	* Compare nulls.	Eelco Dolstra	1	-2/+5

2010-03-30	* More primops.	Eelco Dolstra	1	-4/+9

2010-03-30	* More operators / primops.	Eelco Dolstra	1	-143/+105

2010-03-30	* More primops.	Eelco Dolstra	1	-128/+32

2010-03-30	* More primops.	Eelco Dolstra	1	-8/+24

2010-03-30	* Implemented `map'.	Eelco Dolstra	1	-100/+110

2010-03-30	* Make `import' work.	Eelco Dolstra	1	-33/+105

2010-03-29	* Started integrating the new evaluator.	Eelco Dolstra	1	-19/+545

2010-03-25	* Simplify @-patterns: only `{attrs}@name' or `name@{attrs}' are now	Eelco Dolstra	1	-10/+5
	allowed. So `name1@name2', `{attrs1}@{attrs2}' and so on are now no longer legal. This is no big loss because they were not useful anyway. This also changes the output of builtins.toXML for @-patterns slightly.
2009-05-12	* Allow unsafe (unspecified) comparisons between attrsets unless	Eelco Dolstra	1	-1/+7
	NIX_NO_UNSAFE_EQ is set, for now.
2009-05-11	* Disallow equality tests between attribute sets. This was always	Eelco Dolstra	1	-6/+42
	broken, but now the evaluator checks for it to prevent Nix expressions from relying on undefined behaviour. Equality tests are implemented using a shallow pointer equality test between ATerms. However, because attribute sets are lazy and contain position information, this can give false positives. For instance, previously let y = {x = 1;}; in y == y evaluated to true, while the equivalent expression {x = 1;} == {x = 1;} evaluated to false. So disallow these tests for now. (Eventually we may want to implement deep equality tests for attribute sets, like lib.eqStrict.) * Idem: disallow comparisons between functions. * Implemented deep comparisons of lists. This had the same problem as attribute sets - the elements in the list weren't evaluated. For instance, ["xy"] == [("x" + "y")] evaluated to false. Now it works properly.
2008-08-26	* Require that __overrides is defined as a non-recursive attribute	Eelco Dolstra	1	-1/+1
	(which means it can only be defined via "inherit"), otherwise we get scoping bugs, since __overrides can't be recursive (or at least, it would be hard).
2008-08-14	Fixing an obvious typo in override code. I do not know whether it works ↵	Michael Raskin	1	-1/+1
	correctly after the change, but at least it ca nbe compiled now.
2008-08-14	* Another experimental feature: a way to truly override attributes in	Eelco Dolstra	1	-2/+24
	a rec. This will be very useful to allow end-user customisation of all-packages.nix, for instance globally overriding GCC or some other dependency. The // operator doesn't cut it: you could replace the "gcc" attribute, but all other attributes would continue to reference the original value due to the substitution semantics of rec. The syntax is a bit hacky but this is to allow backwards compatibility.