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184 commits

Author SHA1 Message Date
Eelco Dolstra 99cec651c9
Add more fromTOML tests 2019-06-24 16:52:11 +02:00
Eelco Dolstra 17ef3e6f41
Enable more fromTOML tests 
cpptoml now parses almost all examples from the spec.
 2019-05-29 12:22:52 +02:00
Eelco Dolstra cfd74aef1e
Fix eval-okay-fromTOML test 
Turns out we were mis-parsing single-quoted attributes, e.g. 'key2'.
 2019-05-29 12:12:02 +02:00
Eelco Dolstra 9eaebbf575
Merge branch 'attrPaths' of https://github.com/NinjaTrappeur/nix 2019-05-28 22:59:05 +02:00
Will Dietz a834861876
fix hashfile test that wasn't failing due to eval laziness 
See:
7becb1bf1c (r33450554)
 2019-05-08 10:04:54 +02:00
Daniel Schaefer 3f192ac80c Add builtins.hashFile 
For text files it is possible to do it like so:
`builtins.hashString "sha256" (builtins.readFile /tmp/a)`
but that doesn't work for binary files.

With builtins.hashFile any kind of file can be conveniently hashed.
 2019-05-03 17:23:36 +02:00
Eelco Dolstra e489f5cabf Update eval-okay-types.exp to match #1828 2019-03-27 21:07:04 +01:00
Jonas Chevalier 514b3c7f83
Add isPath primop 
this is added for completeness' sake since all the other possible
`builtins.typeOf` results have a corresponding `builtins.is<Type>`
 2019-03-24 11:36:49 +01:00
Shea Levy b30be6b450
Add builtins.appendContext. 
A partner of builtins.getContext, useful for the same reasons.
 2019-01-31 08:52:23 -05:00
Shea Levy 1d757292d0
Add builtins.getContext. 
This can be very helpful when debugging, as well as enabling complex
black magic like surgically removing a single dependency from a
string's context.
 2019-01-14 11:27:10 -05:00
Eelco Dolstra 9b1bdf2db8
FIx floating point evaluation 
Fixes #2361.
 2018-08-19 11:59:49 +02:00
volth 403a76a18f lib.concatMap and lib.mapAttrs to be builtins 2018-07-05 02:54:09 +00:00
Eelco Dolstra 3b1f54cf06
Add a fromTOML primop 
This is primarily useful for processing Cargo.lock files.
 2018-07-03 18:39:36 +02:00
volth 88c1ea30e4 add docs and tests 2018-05-24 12:51:34 +00:00
Eelco Dolstra 1ad19232c4
Don't return negative numbers from the flex tokenizer 
Fixes #1374.
Closes #2129.
 2018-05-11 12:05:12 +02:00
Eelco Dolstra 548ad391d9
Fix builtins.add test 
Nix prints the floating point number 4.0 as "4".
 2018-05-02 13:49:32 +02:00
Félix Baylac-Jacqué b2f3a7411a
nix-lang: Add deep nested mixed attrs test case. 2018-05-01 14:42:34 +02:00
Tim Sears 9a714f75af
add tests for builtins.add 2018-04-29 12:03:42 -07:00
Shea Levy e2b028353b
Merge branch 'pos-crash-fix' of git://github.com/dezgeg/nix 2018-04-23 08:43:54 -04:00
Shea Levy 0aae411eaa
Merge branch 'add-test-eval-okay-nested-with' of git://github.com/ryantrinkle/nix 2018-04-23 08:43:14 -04:00
Félix Baylac-Jacqué 00584bb091
parser: Allow mixed nested and top-level attrpaths 
Fixes #2077.
 2018-04-18 18:44:38 +02:00
Félix Baylac-Jacqué 10d33452e2
nix-lang parser: Add mixed nested attrs tests. 
Part of issue #2077
 2018-04-17 09:13:01 +02:00
Doug Beardsley 72902ec399 Add missing eval-okay-regex-split.exp test file 2018-04-06 12:18:59 -06:00
Tuomas Tynkkynen af86132e1a libexpr: Make unsafeGetAttrPos not crash on noPos 
Currently e.g. `builtins.unsafeGetAttrPos "abort" builtins` will
eventually segfault because pos->file is an unset Symbol.

Found by afl-fuzz.
 2018-04-03 15:54:42 +03:00
Ryan Trinkle f2273b11f5 Add test eval-okay-nested-with 2018-03-30 15:41:16 -04:00
Tuomas Tynkkynen a0e38c16bc libexpr: Recognize newline in more places in lexer 
Flex's regexes have an annoying feature: the dot matches everything
except a newline. This causes problems for expressions like:

"${0}\
"

where the backslash-newline combination matches this rule instead of the
intended one mentioned in the comment:

    <STRING>\$|\\|\$\\ {
                    /* This can only occur when we reach EOF, otherwise the above
                    (...|\$[^\{\"\\]|\\.|\$\\.)+ would have triggered.
                    This is technically invalid, but we leave the problem to the
                    parser who fails with exact location. */
                    return STR;
                }
However, the parser actually accepts the resulting token sequence
('"' DOLLAR_CURLY 0 '}' STR '"'), which is a problem because the lexer
rule didn't assign anything to yylval. Ultimately this leads to a crash
when dereferencing a NULL pointer in ExprConcatStrings::bindVars().

The fix does change the syntax of the language in some corner cases
but I think it's only turning previously invalid (or crashing) syntax
to valid syntax. E.g.

"a\
b"

and

''a''\
b''

were previously syntax errors but now both result in "a\nb".

Found by afl-fuzz.
 2018-03-02 17:30:48 +02:00
Tuomas Tynkkynen 77e9e1ed91 libexpr: Fix prim_replaceStrings() to work on an empty source string 
Otherwise, running e.g.

nix-instantiate --eval -E --strict 'builtins.replaceStrings [""] ["X"] "abc"'

would just hang in an infinite loop.

Found by afl-fuzz.

First attempt of this was reverted in e2d71bd186 because it caused
another infinite loop, which is fixed now and a test added.
 2018-02-26 19:49:13 +02:00
Eelco Dolstra e2d71bd186
Revert "libexpr: Fix prim_replaceStrings() to work on an empty source string" 
This reverts commit 4ea9707591.

It causes an infinite loop in Nixpkgs evaluation,
e.g. "nix-instantiate -A hello" hung.

PR #1886.
 2018-02-21 15:35:28 +01:00
Tuomas Tynkkynen 4ea9707591 libexpr: Fix prim_replaceStrings() to work on an empty source string 
Otherwise, running e.g.

nix-instantiate --eval -E --strict 'builtins.replaceStrings [""] ["X"] "abc"'

would just hang in an infinite loop.

Found by afl-fuzz.
 2018-02-19 23:20:26 +02:00
Shea Levy b095c06139
Add splitVersion primop. 
Fixes #1868.
 2018-02-14 09:55:43 -05:00
Shea Levy 48c192ca2d
builtins.path test: Don't rely on shlevy's XDG_RUNTIME_DIR 2018-02-07 10:26:53 -05:00
Shea Levy 69d82e5c58
Add path primop. 
builtins.path allows specifying the name of a path (which makes paths
with store-illegal names now addable), allows adding paths with flat
instead of recursive hashes, allows specifying a filter (so is a
generalization of filterSource), and allows specifying an expected
hash (enabling safe path adding in pure mode).
 2018-02-06 16:48:08 -05:00
Eelco Dolstra 2c39e4eca0
Revert "Don't parse "x:x" as a URI" 
This reverts commit f90f660b24.

This broke Hydra's release.nix, which contained

  preCheck = ''export LOGNAME=${LOGNAME:-foo}'';
 2017-11-14 15:10:52 +01:00
Eelco Dolstra f90f660b24
Don't parse "x:x" as a URI 
URIs now have to contain "://" or start with "channel:".
 2017-10-30 17:58:01 +01:00
Nicolas B. Pierron b8867a0239 Add builtins.string function. 
The function 'builtins.split' takes a POSIX extended regular expression
and an arbitrary string. It returns a list of non-matching substring
interleaved by lists of matched groups of the regular expression.

```nix
with builtins;
assert split "(a)b" "abc"      == [ "" [ "a" ] "c" ];
assert split "([ac])" "abc"    == [ "" [ "a" ] "b" [ "c" ] "" ];
assert split "(a)|(c)" "abc"   == [ "" [ "a" null ] "b" [ null "c" ] "" ];
assert split "([[:upper:]]+)" "  FOO   "
                               == [ "  " [ "FOO" ] "   " ];
```
 2017-08-15 20:04:11 +00:00
Graham Christensen 364f75e03a Update mailing list. 2017-07-18 08:04:01 -04:00
Eelco Dolstra f134fc4cbe
Document that builtins.match takes a POSIX extended RE 2017-05-17 12:18:18 +02:00
Guillaume Maudoux a474425425 Fix lexer to support $' in multiline strings. 2017-05-01 01:15:40 +02:00
Guillaume Maudoux e4b82af387 Improve error message on trailing path slashes 2016-11-27 17:48:46 +01:00
Guillaume Maudoux a5e761dddb Fix comments parsing 
Fixed the parsing of multiline strings ending with an even number of
stars, like /** this **/.
Added test cases for comments.
 2016-11-13 17:20:34 +01:00
Eelco Dolstra 26d92017d3 Add builtin function "partition" 
The implementation of "partition" in Nixpkgs is O(n^2) (because of the
use of ++), and for some reason was causing stack overflows in
multi-threaded evaluation (not sure why).

This reduces "nix-env -qa --drv-path" runtime by 0.197s and memory
usage by 298 MiB (in non-Boehm mode).
 2016-08-29 19:36:54 +02:00
Eelco Dolstra e03d6e0998 Fix broken number parsing in fromJSON 
The call to tmp_number.append had its arguments mixed up. Also, JSON
does not allow a trailing "," after array/object members.
 2016-02-15 15:01:26 +01:00
Eelco Dolstra eb62e23f14 Fix test broken by #762 2016-02-15 15:01:26 +01:00
Eelco Dolstra b3e8d72770 Merge pull request #762 from ctheune/ctheune-floats 
Implement floats
 2016-02-12 12:49:59 +01:00
Eelco Dolstra 4f7824c58e Remove tests/lexer.sh 
"tests/lang.sh" can handle this.
 2016-02-01 18:27:37 +01:00
Christian Theune 5cdcaf5e8e Adapt tests to show that floats work properly. 2016-01-06 10:03:24 +01:00
Eelco Dolstra 6f1743b1a5 Support SHA-512 hashes 
Fixes #679.

Note: on x86_64, SHA-512 is considerably faster than SHA-256 (198 MB/s
versus 131 MB/s).
 2015-11-04 16:37:49 +01:00
Eelco Dolstra 76cc8e97a2 Add sort primop 2015-07-28 18:39:39 +02:00
Eelco Dolstra 50807f3dd5 Add primop genList 
This can be used to implement functions like ‘imap’ (or for that
matter, ‘map’) without the quadratic complexity incurred by calling
‘++’ repeatedly.
 2015-07-28 17:28:35 +02:00
Eelco Dolstra d6d5885c15 Add replaceStrings primop 
This is a generalisation of replaceChars in Nixpkgs.
 2015-07-24 15:32:24 +02:00