depot - monorepo for the virus lounge

Age	Commit message (Collapse)	Author	Files	Lines
2022-08-25	r/4483 feat(tvix/eval): implement if/else expressions	Vincent Ambo	1	-1/+8
	These expressions use simple jumps to skip the correct expression conditionally in the bytecode by advancing the instruction pointer. Note that these expressions are already covered by a test behind the `nix_tests` feature flag, but adding more is probably sensible. Change-Id: Ibe0eba95d216321c883d3b6b5816e2ab6fe7eef1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6148 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi> Reviewed-by: sterni <sternenseemann@systemli.org>
2022-08-25	r/4479 feat(tvix/eval): implement list concatenation	Vincent Ambo	1	-0/+1
	Change-Id: Icdf715d116371a9f139bdf95266410bf967bef25 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6144 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-08-25	r/4478 feat(tvix/eval): implement binary comparison operators	Vincent Ambo	1	-0/+4
	This is accomplished by simply delegating to the Rust implementations of (Partial)Ord and (Partial)Eq, which are implemented for Value and underlying wrapper types to behave like they do in Nix. To ease the implementation overhead, a new comparison operator macro has been added to the VM module. Incomparable types will raise a new error variant when a comparison is attempted, containing both supplied types. This mimics the information carried in the error thrown by C++ Nix. Change-Id: Ia19634d69119d40722f3ca672387bc3a80096998 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6143 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-08-25	r/4475 feat(tvix/eval): implement attrset update (`//`) operator	Vincent Ambo	1	-0/+1
	The underlying implementation does a few tricks based on which pair of attrset representations is encountered. Particularly the effect of short-circuiting the empty cases might be relevant in nixpkgs/NixOS, due to the use of lib.optionalAttrs. Change-Id: I22b978b1c69af12926489a71087c6a6219c012f3 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6140 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-08-13	r/4439 feat(tvix/eval): construct internal attribute path representation	Vincent Ambo	1	-0/+1
	This is required for constructing nested attribute sets at runtime. There'll be quite a lot of optimisation potential with this solution eventually, if it should turn out to be a bottleneck. This introduces a conceptual change, in that the `Value` enum is now an enum representing "all runtime values" instead of "all Nix language types". This makes sense in general, as this type will also contain Chunk representations etc. which are not exposed to users. Change-Id: Ic5f72b2a0965b146c6a451efad34c6a81ca1aad8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6103 Reviewed-by: grfn <grfn@gws.fyi> Tested-by: BuildkiteCI
2022-08-13	r/4434 feat(tvix): implement string interpolation	Vincent Ambo	1	-0/+3
	This adds a new instruction which assembles an interpolated string from a specified number of fragments, which are already going to be located on the stack in the right position. This will raise a type error if any of the fragments do not evaluate to a string. Change-Id: I5756248fa3e9fcc3d063c14db40b332f7e20a588 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6098 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-13	r/4430 feat(tvix/vm): implement list construction	Vincent Ambo	1	-0/+3
	Change-Id: Iec2b4910800ab29daae6d71b58a8acd14ccb1cc1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6094 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi> Autosubmit: tazjin <tazjin@tvl.su>
2022-08-13	r/4427 feat(tvix/eval): implement trivial attribute set literals	Vincent Ambo	1	-0/+3
	Implements attribute set literals without nesting. Technically this already supports dynamic key fragments (evaluating to strings), though the only way to create these (interpolation) is not yet implemented. However, creating simple attribute sets like `{ }`, or `{ a = 15; }` or `{ a = 10 * 2; }` works. Recursive attribute sets are not yet implemented as we do not have any kind of scope access yet anyways. This is implemented using a new instruction that creates an attribute set with a given number of elements by popping key/value pairs off the stack. Change-Id: I0f9aac7a131a112d3f66b131297686b38aaeddf2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6091 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-12	r/4414 feat(tvix/eval): implement equality operator	Vincent Ambo	1	-3/+6
	Change-Id: I9dd54aed72cd7e67593dc76f5a046ebbda40c26f Reviewed-on: https://cl.tvl.fyi/c/depot/+/6078 Tested-by: BuildkiteCI Autosubmit: tazjin <tazjin@tvl.su> Reviewed-by: grfn <grfn@gws.fyi>
2022-08-12	r/4411 feat(tvix/eval): implement unary negation operator	Vincent Ambo	1	-1/+5
	Change-Id: I5d012cc073e55d79d7b34b88283aab3164864293 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6075 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-12	r/4410 feat(tvix/eval): implement simple arithmetic binary operations	Vincent Ambo	1	-0/+6
	Implements simple arithmetic operations (+, -, *, /). There is some scaffolding included to pop and coerce pairs of numbers, as the Nix language will let arithmetic operators apply to arbitrary pairs of number types (always resulting in floats if the types are mixed). Change-Id: I5f62c363bdea8baa6ef812cc64c5406759d257cf Reviewed-on: https://cl.tvl.fyi/c/depot/+/6074 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>
2022-08-12	r/4404 feat(tvix/eval): add initial opcode representation	Vincent Ambo	1	-0/+19
	Change-Id: Ibc7685a6b0b92e08f0b6c82cf7d9b04fbb593a4e Reviewed-on: https://cl.tvl.fyi/c/depot/+/6068 Tested-by: BuildkiteCI Reviewed-by: grfn <grfn@gws.fyi>