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Age	Commit message (Collapse)	Author	Files	Lines
2014-01-14	Allow "bare" dynamic attrs	Shea Levy	2	-0/+18
	Now, in addition to a."${b}".c, you can write a.${b}.c (applicable wherever dynamic attributes are valid). Signed-off-by: Shea Levy <shea@shealevy.com>
2014-01-06	Merge branch 'dynamic-attrs-no-sugar' of github.com:shlevy/nix	Eelco Dolstra	6	-0/+24

2014-01-06	Disable the tail call test	Eelco Dolstra	1	-0/+0
	On i686-linux, GCC stubbornly refuses to do tail-call optimisation. Don't know why. http://hydra.nixos.org/build/7300170
2013-12-31	Fold dynamic binds handling into addAttr	Shea Levy	2	-0/+2
	Since addAttr has to iterate through the AttrPath we pass it, it makes more sense to just iterate through the AttrNames in addAttr instead. As an added bonus, this allows attrsets where two dynamic attribute paths have the same static leading part (see added test case for an example that failed previously). Signed-off-by: Shea Levy <shea@shealevy.com>
2013-12-31	Dynamic attrs	Shea Levy	2	-0/+18
	This adds new syntax for attribute names: * attrs."${name}" => getAttr name attrs * attrs ? "${name}" => isAttrs attrs && hasAttr attrs name * attrs."${name}" or def => if attrs ? "${name}" then attrs."${name}" else def * { "${name}" = value; } => listToAttrs [{ inherit name value; }] Of course, it's a bit more complicated than that. The attribute chains can be arbitrarily long and contain combinations of static and dynamic parts (e.g. attrs."${foo}".bar."${baz}" or qux), which is relatively straightforward for the getAttrs/hasAttrs cases but is more complex for the listToAttrs case due to rules about duplicate attribute definitions. For attribute sets with dynamic attribute names, duplicate static attributes are detected at parse time while duplicate dynamic attributes are detected when the attribute set is forced. So, for example, { a = null; a.b = null; "${"c"}" = true; } will be a parse-time error, while { a = {}; "${"a"}".b = null; c = true; } will be an eval-time error (technically that case could theoretically be detected at parse time, but the general case would require full evaluation). Moreover, duplicate dynamic attributes are not allowed even in cases where they would be with static attributes ({ a.b.d = true; a.b.c = false; } is legal, but { a."${"b"}".d = true; a."${"b"}".c = false; } is not). This restriction might be relaxed in the future in cases where the static variant would not be an error, but it is not obvious that that is desirable. Finally, recursive attribute sets with dynamic attributes have the static attributes in scope but not the dynamic ones. So rec { a = true; "${"b"}" = a; } is equivalent to { a = true; b = true; } but rec { "${"a"}" = true; b = a; } would be an error or use a from the surrounding scope if it exists. Note that the getAttr, getAttr or default, and hasAttr are all implemented purely in the parser as syntactic sugar, while attribute sets with dynamic attribute names required changes to the AST to be implemented cleanly. This is an alternative solution to and closes #167 Signed-off-by: Shea Levy <shea@shealevy.com>
2013-12-31	Add the ExprBuiltin Expr type to the AST	Shea Levy	2	-0/+4
	Certain desugaring schemes may require the parser to use some builtin function to do some of the work (e.g. currently `throw` is used to lazily cause an error if a `<>`-style path is not in the search path) Unfortunately, these names are not reserved keywords, so an expression that uses such a syntactic sugar will not see the expected behavior (see tests/lang/eval-okay-redefine-builtin.nix for an example). This adds the ExprBuiltin AST type, which when evaluated uses the value from the rootmost variable scope (which of course is initialized internally and can't shadow any of the builtins). Signed-off-by: Shea Levy <shea@shealevy.com>
2013-11-19	Add a toJSON primop	Eelco Dolstra	2	-0/+12

2013-11-18	Add a primop unsafeGetAttrPos to return the position of an attribute	Eelco Dolstra	2	-0/+7

2013-11-18	Add a symbol __curPos that expands to the current source location	Eelco Dolstra	2	-0/+6
	I.e. an attribute set { file = <string>; line = <int>; column = <int>; }.
2013-11-12	Add a test to check that tail calls run in bounded stack space	Eelco Dolstra	2	-0/+4

2013-10-24	Rename "attribute sets" to "sets"	Eelco Dolstra	1	-1/+1
	We don't have any other kind of sets so calling them attribute sets is unnecessarily verbose.
2013-10-24	Add a test of the type primops	Eelco Dolstra	2	-0/+24

2013-10-17	Add a test for type correctness of antiquotes	Eelco Dolstra	3	-0/+3
	Antiquotes should evaluate to strings or paths. This is usually checked, except in the case where the antiquote makes up the entire string, as in "${expr}". This is optimised to expr, which discards the runtime type checks / coercions.
2013-10-16	Add a regression test for correct path antiquotation behavior	Eelco Dolstra	1	-0/+4
	This broke in Nix 1.6.
2013-08-26	Simplify inherited attribute handling	Shea Levy	2	-0/+25
	This reduces the difference between inherited and non-inherited attribute handling to the choice of which env to use (in recs and lets) by setting the AttrDef::e to a new ExprVar in the parser rather than carrying a separate AttrDef::v VarRef member. As an added bonus, this allows inherited attributes that inherit from a with to delay forcing evaluation of the with's attributes. Signed-off-by: Shea Levy <shea@shealevy.com>
2013-08-26	Fix typos, especially those that end up in the Nix manual	Ivan Kozik	1	-1/+1

2013-08-02	Let the ordering operators also work on strings	Eelco Dolstra	2	-1/+6
	E.g. ‘"foo" < "bar"’ now works.
2013-08-02	Add comparison operators ‘<’, ‘<=’, ‘>’ and ‘>=’	Eelco Dolstra	2	-1/+24

2013-08-02	Add integer ‘-’, ‘*’ and ‘/’ operators	Eelco Dolstra	3	-1/+11

2013-08-02	Add a unary integer negation operator	Eelco Dolstra	2	-2/+7
	This allows saying "-1" instead of "builtins.sub 0 1".
2013-08-02	Overload the ‘+’ operator to support integer addition	Eelco Dolstra	2	-4/+4

2013-07-31	Test the delayed with a bit more	Eelco Dolstra	2	-4/+7

2013-07-31	Delay evaulation of `with` attrs until a variable lookup needs them	Shea Levy	2	-0/+27
	Evaluation of attribute sets is strict in the attribute names, which means immediate evaluation of `with` attribute sets rules out some potentially interesting use cases (e.g. where the attribute names of one set depend in some way on another but we want to bring those names into scope for some values in the second set). The major example of this is overridable self-referential package sets (e.g. all-packages.nix). With immediate `with` evaluation, the only options for such sets are to either make them non-recursive and explicitly use the name of the overridden set in non-overridden one every time you want to reference another package, or make the set recursive and use the `__overrides` hack. As shown in the test case that comes with this commit, though, delayed `with` evaluation allows a nicer third alternative. Signed-off-by: Shea Levy <shea@shealevy.com>
2013-02-08	Rename "hash" to "hashString" and handle SHA-1	Eelco Dolstra	2	-5/+6

2013-02-08	experimental/hash	Marc Weber	2	-0/+7
	adding primop function calculating hash of a string Signed-off-by: Marc Weber <marco-oweber@gmx.de>
2012-09-27	Allow dashes in identifiers	Eelco Dolstra	1	-2/+2
	In Nixpkgs, the attribute in all-packages.nix corresponding to a package is usually equal to the package name. However, this doesn't work if the package contains a dash, which is fairly common. The convention is to replace the dash with an underscore (e.g. "dbus-lib" becomes "dbus_glib"), but that's annoying. So now dashes are valid in variable / attribute names, allowing you to write: dbus-glib = callPackage ../development/libraries/dbus-glib { }; and buildInputs = [ dbus-glib ]; Since we don't have a negation or subtraction operation in Nix, this is unambiguous.
2012-01-19	* Add a test case for comparing derivations.	Eelco Dolstra	2	-0/+11

2012-01-03	* Refactoring: Get rid of a few subdirectories in corepkgs/, and some	Eelco Dolstra	1	-1/+1
	other simplifications. * Use <nix/...> to locate the corepkgs. This allows them to be overriden through $NIX_PATH. * Use bash's pipefail option in the NAR builder so that we don't need to create a temporary file.
2011-12-21	* Add some accidentally committed files.	Eelco Dolstra	2	-2/+0

2011-08-06	* Add the Nix corepkgs to the end of the search path. This makes it	Eelco Dolstra	2	-3/+3
	possible for other Nix expressions to use corepkgs (mostly useful for the buildenv function).
2011-08-06	* Allow redirections in search path entries. E.g. if you have a	Eelco Dolstra	3	-3/+3
	directory /home/eelco/src/stdenv-updates that you want to use as the directory for import such as with (import <nixpkgs> { }); then you can say $ nix-build -I nixpkgs=/home/eelco/src/stdenv-updates
2011-08-06	* Add a Nix expression search path feature. Paths between angle	Eelco Dolstra	13	-0/+15
	brackets, e.g. import <nixpkgs/pkgs/lib> are resolved by looking them up relative to the elements listed in the search path. This allows us to get rid of hacks like import "${builtins.getEnv "NIXPKGS_ALL"}/pkgs/lib" The search path can be specified through the ‘-I’ command-line flag and through the colon-separated ‘NIX_PATH’ environment variable, e.g., $ nix-build -I /etc/nixos ... If a file is not found in the search path, an error message is lazily thrown.
2011-07-13	* Allow attribute names to be strings. Based on the	Eelco Dolstra	2	-0/+21
	allow-arbitrary-strinsg-in-names patch by Marc Weber.
2011-07-13	* Allow a default value in attribute selection by writing	Eelco Dolstra	2	-0/+22
	x.y.z or default (as originally proposed in https://mail.cs.uu.nl/pipermail/nix-dev/2009-September/002989.html). For instance, an expression like stdenv.lib.attrByPath ["features" "ckSched"] false args can now be written as args.features.ckSched or false
2011-07-06	* Test case.	Eelco Dolstra	2	-0/+8

2011-01-14	* builtins.substring: if "start" is beyond the end of the string,	Eelco Dolstra	2	-1/+3
	return the empty string.
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.
2010-10-23	* Regression test for listToAttr's behaviour if an attribute name	Eelco Dolstra	2	-2/+3
	occurs multiple times.
2010-10-22	* Regression test for __overrides.	Eelco Dolstra	2	-0/+10

2010-05-12	* Print attributes in sorted order.	Eelco Dolstra	1	-1/+1

2010-05-12	* Implemented tryEval, the last missing primop in the fast-eval	Eelco Dolstra	2	-0/+6
	branch. Also added a test for tryEval.
2010-05-07	* Sync with the trunk.	Eelco Dolstra	4	-0/+4

2010-04-22	* Check for duplicate attribute names / function arguments. `make	Eelco Dolstra	3	-1/+10
	check' now succeeds :-) * An attribute set such as `{ foo = { enable = true; }; foo.port = 23; }' now parses. It was previously rejected, but I'm too lazy to implement the check. (The only reason to reject it is that the reverse, `{ foo.port = 23; foo = { enable = true; }; }', is rejected, which is kind of ugly.)
2010-04-21	* Update the expected test output (no longer an ATerm).	Eelco Dolstra	34	-34/+34

2010-04-21	* Because --parse-only no longer produces an ATerm, don't check the	Eelco Dolstra	5	-5/+0
	output. Whether it parses at all should be enough.
2010-03-31	(no commit message)	Eelco Dolstra	1	-1/+0

2010-03-31	* Fix the broken test for listToAttrs.	Eelco Dolstra	2	-2/+5

2010-03-31	Make source location info in the XML output optional.	Ludovic Courtès	2	-0/+4
	* src/libexpr/expr-to-xml.cc (nix::showAttrs): Add `location' parameter. Provide location XML attributes when it's true. Update callers. (nix::printTermAsXML): Likewise. * src/libexpr/expr-to-xml.hh (nix::printTermAsXML): Update prototype; have `location' default to `false'. * src/nix-instantiate/nix-instantiate.cc (printResult, processExpr): Add `location' parameter; update callers. (run): Add support for `--no-location'. * src/nix-instantiate/help.txt: Update accordingly. * tests/lang.sh: Invoke `nix-instantiate' with `--no-location' for the XML tests. * tests/lang/eval-okay-toxml.exp, tests/lang/eval-okay-to-xml.nix: New files.
2010-03-25	* Simplify @-patterns: only `{attrs}@name' or `name@{attrs}' are now	Eelco Dolstra	6	-17/+10
	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.
2010-03-23	* Doh.	Eelco Dolstra	2	-20/+8