Eelco Dolstra
9985230c00
* After parsing, compute level/displacement pairs for each variable
...
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 14:42:32 +00:00
Eelco Dolstra
ac1e8f40d4
* Use a symbol table to represent identifiers and attribute names
...
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.
2010-04-13 12:25:42 +00:00
Eelco Dolstra
10e8b1fd15
* Finished the ATerm-less parser.
2010-04-12 23:33:23 +00:00
Eelco Dolstra
d4f0b0fc6c
* Indented strings.
2010-04-12 22:03:27 +00:00
Eelco Dolstra
a60317f20f
* More missing constructs.
2010-04-12 21:21:24 +00:00
Eelco Dolstra
4d6ad5be17
* Don't use ATerms for the abstract syntax trees anymore. Not
...
finished yet.
2010-04-12 18:30:11 +00:00
Eelco Dolstra
c3f228f296
2010-04-12 09:14:27 +00:00
Eelco Dolstra
fc92244ba8
* Implemented the primops necessary for generating the NixOS manual.
2010-04-07 13:55:46 +00:00
Eelco Dolstra
13c2adc897
* Implemented `rec { inherit ...; }'.
2010-03-31 11:05:39 +00:00
Eelco Dolstra
47df476daa
* More operators / primops.
2010-03-30 18:05:54 +00:00
Eelco Dolstra
c3aa615a5f
* More primops.
2010-03-30 14:39:27 +00:00
Eelco Dolstra
5b72d8a749
* Implemented `map'.
2010-03-30 13:47:59 +00:00
Eelco Dolstra
d78a05ab40
* Make `import' work.
2010-03-30 09:22:33 +00:00
Eelco Dolstra
31428c3a06
* Started integrating the new evaluator.
2010-03-29 14:37:56 +00:00
Eelco Dolstra
52090d2418
2010-03-29 10:13:51 +00:00
Eelco Dolstra
e3f32ac5af
2010-03-29 09:43:55 +00:00
Eelco Dolstra
807a67bc74
2010-03-29 09:43:39 +00:00
Eelco Dolstra
392811eb8f
* Strings.
2010-03-28 18:27:07 +00:00
Eelco Dolstra
d96cdcea6b
2010-03-28 16:57:16 +00:00
Eelco Dolstra
3d2b835f30
* Implemented multi-argument primops.
2010-03-28 16:37:39 +00:00
Eelco Dolstra
45d822f29c
* Primops (not yet finished).
2010-03-26 15:45:53 +00:00
Eelco Dolstra
cad8726b2c
* Implemented the ==' and !=' operators. These now use a deep
...
equality test, so they also work for (finite) attribute sets and
lists.
2010-03-26 13:27:26 +00:00
Eelco Dolstra
8da118e4d0
* Measure stack usage.
2010-03-25 16:35:24 +00:00
Eelco Dolstra
c2ba4313fb
* Implemented lists.
2010-03-25 15:38:37 +00:00
Eelco Dolstra
25eedf085d
* Quick and dirty implementation of with'. with e1; e2' is
...
basically desugared to `let <with> = e1; e2', and `lookupVar' looks
in each <with> in the environment chain for an attribute with the
specified name.
2010-03-25 14:51:04 +00:00
Eelco Dolstra
3c9f8fc9b6
* Don't convert variable names to strings.
2010-03-25 13:10:04 +00:00
Eelco Dolstra
f450384ded
* Implement blackholing.
2010-03-25 12:51:14 +00:00
Eelco Dolstra
ef8bd919fc
* Implement `...' and default function arguments.
2010-03-25 12:45:23 +00:00
Eelco Dolstra
8a10360c91
* Simplify @-patterns: only {attrs}@name' or name@{attrs}' are now
...
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.
2010-03-25 12:19:41 +00:00
Eelco Dolstra
7482349fe8
* Implemented attribute set pattern matches.
2010-03-24 23:40:00 +00:00
Eelco Dolstra
0fd3648d34
* Store values in environments.
2010-03-24 12:41:08 +00:00
Eelco Dolstra
b70bd8fe56
* Reduce the number of value allocations in eval() by moving
...
responsibility for allocation of the result to the caller.
2010-03-24 12:11:38 +00:00
Eelco Dolstra
d31c59eb17
* Plain lambdas.
2010-03-24 11:06:05 +00:00
Eelco Dolstra
0910ae9568
* Start of an evaluator that uses call-by-need (with thunk updating)
...
instead of (memoised) call-by-name.
2010-03-23 17:30:50 +00:00
