lix -

Age	Commit message (Collapse)	Author
2014-03-10	The expr of AttrNames/DynamicAttrDefs is always an ExprConcatStrings	Shea Levy

2014-03-10	If a dynamic attribute name evaluates to null, remove it from the set	Shea Levy

2014-03-05	Revert "Make ifs and asserts tail-recursive"	Eelco Dolstra
	This reverts commit 273322c7732093a354e86df82cf75d6604b8bce8.
2014-02-27	Correctly detect infinite recursion in function application	Eelco Dolstra
	If we're evaluating some application ‘v = f x’, we can't store ‘f’ temporarily in ‘v’, because if ‘f x’ refers to ‘v’, it will get ‘f’ rather than an infinite recursion error. Unfortunately, this breaks the tail call optimisation introduced in c897bac54954373f63511702731fe2cb23c0c98e. Fixes #217.
2014-02-26	Warn about missing -I paths	Eelco Dolstra
	Fixes #121. Note that we don't warn about missing $NIX_PATH entries because it's intended that some may be missing (cf. the default $NIX_PATH on NixOS, which includes paths like /etc/nixos/nixpkgs for backward compatibility).
2014-02-18	lexer-tab.o and parser-tab.o require each other's headers	Shea Levy

2014-02-01	More "make dist" fixes	Eelco Dolstra

2014-02-01	Fix "make dist"	Eelco Dolstra

2014-02-01	Remove Automakefiles	Eelco Dolstra

2014-02-01	Update Makefile variable names	Eelco Dolstra

2014-01-30	Rename Makefile -> local.mk	Eelco Dolstra

2014-01-21	Fix some clang warnings	Eelco Dolstra

2014-01-21	Fix building against Bison 3.0.2	Eelco Dolstra

2014-01-21	Merge branch 'master' into make	Eelco Dolstra
	Conflicts: src/libexpr/eval.cc
2014-01-14	Bare dynamic attrs: Match interpolation semantics	Shea Levy
	Signed-off-by: Shea Levy <shea@shealevy.com>
2014-01-14	Allow "bare" dynamic attrs	Shea Levy
	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>
2014-01-09	Update Makefiles	Eelco Dolstra

2013-12-31	Don't use any syntactic sugar for dynamic attrs	Shea Levy
	This doesn't change any functionality but moves some behavior out of the parser and into the evaluator in order to simplify the code. Signed-off-by: Shea Levy <shea@shealevy.com>
2013-12-31	Fold dynamic binds handling into addAttr	Shea Levy
	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
	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
	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>
2013-12-10	Bump language version for new storePath feature	Shea Levy
	This will allow e.g. channel expressions to use builtins.storePath IFF it is safe to do so without knowing if the path is valid yet. Signed-off-by: Shea Levy <shea@shealevy.com>
2013-12-10	builtins.storePath: Try to substitute the path if it is not yet valid	Shea Levy
	Signed-off-by: Shea Levy <shea@shealevy.com>
2013-11-25	Rename Makefile.new -> Makefile	Eelco Dolstra

2013-11-23	Use libnix as a prefix for all Nix libraries	Eelco Dolstra
	In particular "libutil" was always a problem because it collides with Glibc's libutil. Even if we install into $(libdir)/nix, the linker sometimes got confused (e.g. if a program links against libstore but not libutil, then ld would report undefined symbols in libstore because it was looking at Glibc's libutil).
2013-11-23	Drop the dependency on libgc in libmain	Eelco Dolstra
	Instead, libexpr now depends on libgc. This means commands like nix-store that don't do any evaluation no longer require libgc.
2013-11-23	Initialise Boehm GC only once	Eelco Dolstra

2013-11-23	Allow (dynamic) libraries to depend on other libraries	Eelco Dolstra

2013-11-23	Implement basic ‘make install’	Eelco Dolstra

2013-11-22	Rename $(here) to $(d) for brevity, and remove trailing slash	Eelco Dolstra

2013-11-22	Generate the parser and the lexer	Eelco Dolstra

2013-11-22	New non-recursive, plain Make-based build system	Eelco Dolstra

2013-11-19	Check meta values and warn about bad ones	Eelco Dolstra

2013-11-19	Generalise meta attributes	Eelco Dolstra

2013-11-19	Shorter error message	Eelco Dolstra

2013-11-19	Refactor JSON output	Eelco Dolstra

2013-11-19	Add a toJSON primop	Eelco Dolstra

2013-11-18	Add a primop unsafeGetAttrPos to return the position of an attribute	Eelco Dolstra

2013-11-18	Add a symbol __curPos that expands to the current source location	Eelco Dolstra
	I.e. an attribute set { file = <string>; line = <int>; column = <int>; }.
2013-11-18	Support quoted attribute names in -A	Eelco Dolstra
	This is requires if you have attribute names with dots in them. So you can now say: $ nix-instantiate '<nixos>' -A 'config.systemd.units."postgresql.service".text' --eval-only Fixes #151.
2013-11-12	Make function calls show up in stack traces again	Eelco Dolstra
	Note that adding --show-trace prevents functions calls from being tail-recursive, so an expression that evaluates without --show-trace may fail with a stack overflow if --show-trace is given.
2013-11-12	Make function calls tail-recursive	Eelco Dolstra

2013-11-12	Make ifs and asserts tail-recursive	Eelco Dolstra
	The local Value object prevented g++ from making a tail call. Not clear why. In any case, not using a temporary makes g++ do the tail call.
2013-11-12	Get rid of an intermediary on the stack	Eelco Dolstra

2013-10-28	Fix building without a garbage collector	Eelco Dolstra
	http://hydra.nixos.org/build/6695350
2013-10-28	Fix a segfault in genericClosure	Eelco Dolstra
	It kept temporary data in STL containers that were not scanned by Boehm GC, so Nix programs using genericClosure could randomly crash if the garbage collector kicked in at a bad time. Also make it a bit more efficient by copying points to values rather than values.
2013-10-28	Slightly optimize listToAttrs	Eelco Dolstra

2013-10-24	Rename "attribute sets" to "sets"	Eelco Dolstra
	We don't have any other kind of sets so calling them attribute sets is unnecessarily verbose.
2013-10-24	Remove unnecessary call to forceStringNoCtx	Eelco Dolstra

2013-10-24	Add a typeOf primop	Eelco Dolstra
	We already have some primops for determining the type of a value, such as isString, but they're incomplete: for instance, there is no isPath. Rather than adding more isBla functions, the generic typeOf function returns a string representing the type of the argument (e.g. "int").