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2023-12-12 r/7190 fix(tvix/eval): fix nested assertions b/340Adam Joseph2-2/+0
This commit fixes our handling of `throw` within an `assert` condition. Fixes: b/340 Change-Id: I40a383639ec266da50a853f16216b1b7868495da Reviewed-on: https://cl.tvl.fyi/c/depot/+/10318 Autosubmit: Adam Joseph <adam@westernsemico.com> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2023-12-12 r/7186 fix(tvix/eval): fix catchables in named formalsAdam Joseph2-2/+0
Fixes b/348. Change-Id: I5e8d56b5fd26a19eac32ec5e11baf93765691dc8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10296 Autosubmit: Adam Joseph <adam@westernsemico.com> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-12-12 r/7185 test(tvix/eval): test catchables in named formalsAdam Joseph2-0/+2
Relates to b/348. $ /git/depot/result/bin/tvix -E '(builtins.tryEval (({ fred }: "bob") (throw "3"))).success' note: while evaluating this Nix code --> [code]:1:1 | 1 | (builtins.tryEval (({ fred }: "bob") (throw "3"))).success | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: while evaluating this as native code (force) --> [code]:1:1 | 1 | (builtins.tryEval (({ fred }: "bob") (throw "3"))).success | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: while evaluating this as native code (tryEval) --> [code]:1:2 | 1 | (builtins.tryEval (({ fred }: "bob") (throw "3"))).success | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: while evaluating this Nix code --> [code]:1:20 | 1 | (builtins.tryEval (({ fred }: "bob") (throw "3"))).success | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E006]: expected value of type 'set', but found a 'internal[catchable]' --> [code]:1:21 | 1 | (builtins.tryEval (({ fred }: "bob") (throw "3"))).success | ^^^^^^^^ Change-Id: I730fdd996f7e1b81dbbf83dc1524104a8cad2f78 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10295 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Autosubmit: Adam Joseph <adam@westernsemico.com>
2023-12-12 r/7184 fix(tvix/eval): fix testing catchables for inequalityAdam Joseph2-2/+0
Fixes b/347. Change-Id: Icad0251884d4d8adcdf8d690b91385bf4896f9c8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10294 Tested-by: BuildkiteCI Autosubmit: Adam Joseph <adam@westernsemico.com> Reviewed-by: tazjin <tazjin@tvl.su>
2023-12-12 r/7183 test(tvix/eval): testing catchable for inequalityAdam Joseph2-0/+2
Relates to b/347. $ /git/depot/result/bin/tvix -E '(builtins.tryEval (throw "bob" != 3)).success' note: while evaluating this Nix code --> [code]:1:1 | 1 | (builtins.tryEval (throw "bob" != 3)).success | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: while evaluating this as native code (force) --> [code]:1:1 | 1 | (builtins.tryEval (throw "bob" != 3)).success | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: while evaluating this as native code (tryEval) --> [code]:1:2 | 1 | (builtins.tryEval (throw "bob" != 3)).success | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E006]: expected value of type 'bool', but found a 'internal[catchable]' --> [code]:1:20 | 1 | (builtins.tryEval (throw "bob" != 3)).success | ^^^^^^^^^^^^^^^^ Change-Id: Ide19b3ddaf314ef310efc2fe5ac36667e43011dc Reviewed-on: https://cl.tvl.fyi/c/depot/+/10293 Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: Adam Joseph <adam@westernsemico.com> Tested-by: BuildkiteCI
2023-12-12 r/7182 fix(tvix/eval): handle catchables in attribute set updatesAdam Joseph2-2/+0
Fixes b/346. Change-Id: I277121d2363e605ebe09651ed9440fe1bc126c8c Reviewed-on: https://cl.tvl.fyi/c/depot/+/10292 Tested-by: BuildkiteCI Autosubmit: Adam Joseph <adam@westernsemico.com> Reviewed-by: tazjin <tazjin@tvl.su>
2023-12-12 r/7181 test(tvix/eval): test for catchable in attribute mergesAdam Joseph2-0/+2
Relates to b/346. $ /git/depot/result/bin/tvix -E '(builtins.tryEval (throw "bob" // { })).success' note: while evaluating this Nix code --> [code]:1:1 | 1 | (builtins.tryEval (throw "bob" // { })).success | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: while evaluating this as native code (force) --> [code]:1:1 | 1 | (builtins.tryEval (throw "bob" // { })).success | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: while evaluating this as native code (tryEval) --> [code]:1:2 | 1 | (builtins.tryEval (throw "bob" // { })).success | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E006]: expected value of type 'set', but found a 'internal[catchable]' --> [code]:1:20 | 1 | (builtins.tryEval (throw "bob" // { })).success | ^^^^^^^^^^^^^^^^^^ Change-Id: Ib84c4ec6d2612d4f1f6066e66c3dd1bf04369b6e Reviewed-on: https://cl.tvl.fyi/c/depot/+/10291 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Autosubmit: Adam Joseph <adam@westernsemico.com>
2023-12-12 r/7180 fix(tvix/eval): fix recovering from throws in implicationsAdam Joseph2-2/+0
This fixes b/345. Change-Id: Ic0d3b6ffacd2a5e0050d22354d08320b69a4fe13 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10290 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: Adam Joseph <adam@westernsemico.com>
2023-12-12 r/7179 test(tvix/eval): test recovering from throw in implicationsAdam Joseph2-0/+2
error[E006]: expected value of type 'bool', but found a 'internal[catchable]' --> src/tests/tvix_tests/notyetpassing/eval-okay-test-catchables-in-implications.nix:1:43 | 1 | (builtins.tryEval (({ foo ? throw "up" }: foo -> true) { })).success | ^^^^^^^^^^^ Relates to b/345 Change-Id: Ic331c32ea59bf67ae775f485b444dc6804ca13d5 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10289 Tested-by: BuildkiteCI Autosubmit: Adam Joseph <adam@westernsemico.com> Reviewed-by: tazjin <tazjin@tvl.su>
2023-12-12 r/7178 fix(tvix/eval): fix branching on catchable defaults (b/343)Adam Joseph2-2/+0
This commit adds Opcode::OpJumpIfCatchable, which can be inserted ahead of most VM operations which expect a boolean on the stack, in order to handle catchables in branching position properly. Other than remembering to patch the jump, no other changes should be required. This commit also fixes b/343 by emitting this new opcode when compiling if-then-else. There are probably other places where we need to do the same thing. Change-Id: I48de3010014c0bbeba15d34fc0d4800e0bb5a1ef Reviewed-on: https://cl.tvl.fyi/c/depot/+/10288 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: Adam Joseph <adam@westernsemico.com>
2023-12-12 r/7177 test(tvix/eval): test branching on catchable defaults (b/343)Adam Joseph2-0/+2
This is a test case for b/343, wherein tvix dies if you try to branch on an argument whose defaulted value is a catchable. Change-Id: I891ca825e39ad14dda9f220f06d9591874fcd45d Reviewed-on: https://cl.tvl.fyi/c/depot/+/10287 Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: Adam Joseph <adam@westernsemico.com> Tested-by: BuildkiteCI
2023-12-12 r/7173 test(tvix/eval): nested assertions (b/340)Adam Joseph2-0/+2
Change-Id: I898d7056877a6370d5720b633df416f54e7cf65f Reviewed-on: https://cl.tvl.fyi/c/depot/+/10222 Tested-by: BuildkiteCI Autosubmit: Adam Joseph <adam@westernsemico.com> Reviewed-by: tazjin <tazjin@tvl.su>
2023-12-12 r/7169 fix(tvix/eval): preserve catchables in nix_cmp_ordering(), fix b/338Adam Joseph2-2/+0
This commit fixes b/338 by properly propagating catchables through comparison operations. Change-Id: I6b0283a40f228ecf9a6398d24c060bdacb1077cf Reviewed-on: https://cl.tvl.fyi/c/depot/+/10221 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Autosubmit: Adam Joseph <adam@westernsemico.com>
2023-12-12 r/7168 test(tvix/eval): test for b/338 catchable hygiene problemAdam Joseph2-0/+2
Commit 05f42519b53575ad3235b5e0a0cd7d71f04076a5 fixed b/281 by establishing a hygiene regimen to partition *catchable* errors (i.e. those which tryEval can detect) from all other errors, like internal VM failures or I/O errors (which Nix must not be allowed to detect, since these errors are fundamentally impure). Unfotunately there are still cases where tvix assumes that anything other than Value::Bool means it should panic!(). I found another one, and added a test case for it in: eval_okay_src_tests_tvix_tests_eval_okay_compare_ordering_catchable_nix Not yet passing. Change-Id: I69c62ed9ea5c8f81870e8de5c5fe12dcde849763 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10220 Autosubmit: Adam Joseph <adam@westernsemico.com> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-12-12 r/7167 feat(tvix/eval): nonrecursive nix_cmp_ordering(), fixes b/339Adam Joseph2-2/+0
This commit rewrites Value::nix_cmp_ordering() into an equivalent nonrecursive form. Except for calls to Thunk::force(), the new form no longer uses generators, and is async only because of the fact that it calls Thunk::force(). I originally believed that this commit would make evaluation faster. In fact it is slightly slower. I believe this is due to the added vec![] allocation. I am investigating. Prev-Nixpkgs-Benchmark: {"attrpath":"pkgsCross.aarch64-multiplatform.hello.outPath","peak-kbytes":"460048","system-seconds":"0.68","user-seconds":"5.73"} This-Nixpkgs-Benchmark: {"attrpath":"pkgsCross.aarch64-multiplatform.hello.outPath","peak-kbytes":"460224","system-seconds":"0.67","user-seconds":"5.84"} Change-Id: Ic627bc220d9c5aa3c5e68b9b8bf199837cd55af5 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10212 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Autosubmit: Adam Joseph <adam@westernsemico.com>
2023-12-12 r/7165 test(tvix/eval): add test case for b/339Adam Joseph2-0/+2
Not yet passing. Change-Id: I1de3f72d8b3f46567fdba010fc3ab4bace3f1699 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10219 Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: Adam Joseph <adam@westernsemico.com> Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2023-07-11 r/6405 docs(tvix): document when pointer equality is preserved in C++ Nixsterni4-5/+39
This explicitly documents behavior of C++ Nix that goes against the intuition you'd gather from this document: that e.g. a simple select from an attribute set causes a value to no longer be pointer equal to its former self. The point of documenting this is that we can show in a to be written section on the use of pointer equality in nixpkgs that pointer equality is only needed in a limited sense for evaluating it (C++ Nix's exterior pointer equality). Tvix's pointer equality is far more powerful since value identity preserving operations also preserve pointer equality, generally speaking (this is because we implement interior pointer equality in my made up terminology). This should eventually also be documented. Change-Id: I6ce7ef2d67b012f5ebc92f9e81bba33fb9dce7d0 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8856 Tested-by: BuildkiteCI Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su>
2023-06-15 r/6309 test(tvix/eval): genericClosure (pointer) comparison supportsterni2-0/+21
genericClosure has very limited support for pointer equality: It relies on comparison (not equality!) in C++ Nix, so as soon as C++ Nix supports comparing lists (langVersion >= 6) we can rely on pointer equality for key. Since Tvix uses equality, not comparison for the insert, our behavior is currently different, as documented by the notyetpassing tests. Change-Id: Ifcd741ed4fc3ccc3825f7038875d56a9918b786a Reviewed-on: https://cl.tvl.fyi/c/depot/+/8720 Tested-by: BuildkiteCI Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su>
2023-06-15 r/6308 fix(tvix/eval): make tvix display values like nix-instantiate(1)sterni2-0/+35
In order for the test suite we have currently to be comparable to C++ Nix, we need to display values in the same way. This was largely the case except in some weird cases. * <CODE> for thunks and <CYCLE> for repeated thunks (?) are already in use. <CODE> formatting is tested by the oracle test suite already. * Instead of lambda, we need to use <LAMBDA> * <<primop>> and <<primop-app>> (a formatting C++ Nix uses nowhere) now are <PRIMOP> and <PRIMOP-APP>. We'll probably want to have a fancier display of values (in a separate trait) down the line. This could be used for interactive usage, e.g. the REPL or a potential debugger. There is a peculiarity with C++ Nix 2.3 formatting primops: import is considered a <<PRIMOP-APP>>, since it is internally implemented by means of scopedImport. This implementation detail no longer leaks in C++ Nix 2.13 nor in Tvix. <CYCLE> display is untested at the moment, since we exhibit a discrepancy to C++ Nix 2.3. Our current detection is more similar to C++ Nix 2.13—luckily it is also the more consistent of the two. See also b/245. Change-Id: I1d534434b02e470bf5475b3758920ea81e3420dc Reviewed-on: https://cl.tvl.fyi/c/depot/+/8760 Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2023-06-14 r/6299 test(tvix/eval): add test case for builtins set pointer equalitysterni2-0/+21
Unsupported by Tvix at the moment. Documents b/280. Change-Id: I48844feeefa9da8ed7e5d85300d52bb5650f82d2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8772 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Autosubmit: sterni <sternenseemann@systemli.org>
2023-01-06 r/5594 test(tvix/eval): add test for builtins paritysterni2-0/+36
This will eventually force us to have a base builtins set in common with C++ Nix, i.e. all 2.3 builtins except the controversial builtins.valueSize. Change-Id: I2c767f07d6a14711911658e87da9f18ede57a143 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7747 Autosubmit: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
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