From f5f6bd319db3b224aa603d5eaa74e1d61f071f50 Mon Sep 17 00:00:00 2001 From: William Carroll Date: Mon, 5 Sep 2022 22:16:17 -0700 Subject: feat(tvix/eval): Support builtins.bitAnd Bitwise `and` on integers. Change-Id: I9f2a9182a057af26906683acd97a40dfabbdded8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6548 Reviewed-by: wpcarro Autosubmit: wpcarro Reviewed-by: tazjin Tested-by: BuildkiteCI --- tvix/eval/src/builtins/mod.rs | 7 +++++++ tvix/eval/src/tests/tvix_tests/eval-okay-builtins-bitand.exp | 1 + tvix/eval/src/tests/tvix_tests/eval-okay-builtins-bitand.nix | 10 ++++++++++ tvix/eval/src/value/mod.rs | 1 + 4 files changed, 19 insertions(+) create mode 100644 tvix/eval/src/tests/tvix_tests/eval-okay-builtins-bitand.exp create mode 100644 tvix/eval/src/tests/tvix_tests/eval-okay-builtins-bitand.nix (limited to 'tvix') diff --git a/tvix/eval/src/builtins/mod.rs b/tvix/eval/src/builtins/mod.rs index 605c7c2607ef..009758fe0f33 100644 --- a/tvix/eval/src/builtins/mod.rs +++ b/tvix/eval/src/builtins/mod.rs @@ -101,6 +101,13 @@ fn pure_builtins() -> Vec { Ok(Value::List(NixList::construct(output.len(), output))) }) }), + Builtin::new("bitAnd", 2, |args, vm| { + force!(vm, &args[0], x, { + force!(vm, &args[1], y, { + Ok(Value::Integer(x.as_int()? & y.as_int()?)) + }) + }) + }), Builtin::new("catAttrs", 2, |mut args, _| { let list = args.pop().unwrap().to_list()?; let key = args.pop().unwrap().to_str()?; diff --git a/tvix/eval/src/tests/tvix_tests/eval-okay-builtins-bitand.exp b/tvix/eval/src/tests/tvix_tests/eval-okay-builtins-bitand.exp new file mode 100644 index 000000000000..30b348853e44 --- /dev/null +++ b/tvix/eval/src/tests/tvix_tests/eval-okay-builtins-bitand.exp @@ -0,0 +1 @@ +[ 0 0 0 1 8 8 8 8 ] diff --git a/tvix/eval/src/tests/tvix_tests/eval-okay-builtins-bitand.nix b/tvix/eval/src/tests/tvix_tests/eval-okay-builtins-bitand.nix new file mode 100644 index 000000000000..af40005ed983 --- /dev/null +++ b/tvix/eval/src/tests/tvix_tests/eval-okay-builtins-bitand.nix @@ -0,0 +1,10 @@ +[ + (builtins.bitAnd 0 0) + (builtins.bitAnd 0 1) + (builtins.bitAnd 1 0) + (builtins.bitAnd 1 1) + (builtins.bitAnd 8 8) + (builtins.bitAnd 8 (builtins.add 4 4)) + (builtins.bitAnd (builtins.add 4 4) 8) + (builtins.bitAnd (builtins.add 4 4) (builtins.add 4 4)) +] diff --git a/tvix/eval/src/value/mod.rs b/tvix/eval/src/value/mod.rs index 47096dd40912..dc6202dab547 100644 --- a/tvix/eval/src/value/mod.rs +++ b/tvix/eval/src/value/mod.rs @@ -246,6 +246,7 @@ impl Value { } gen_cast!(as_bool, bool, "bool", Value::Bool(b), *b); + gen_cast!(as_int, i64, "int", Value::Integer(x), *x); gen_cast!(to_str, NixString, "string", Value::String(s), s.clone()); gen_cast!(to_attrs, Rc, "set", Value::Attrs(a), a.clone()); gen_cast!(to_list, NixList, "list", Value::List(l), l.clone()); -- cgit 1.4.1