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docs(tvix/eval): document attribute set related opcodes

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Change-Id: Ib98a9fe8c9aa3f0e61c27d10285c0926cda7a969
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7979
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
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Vincent Ambo 2023-02-01 00:24:34 +03:00 • committed by tazjin
parent 3cf37c7cb6
commit 35e8dc97cf
1 changed files with 11 additions and 0 deletions
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11
tvix/eval/src/opcode.rs
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@ -128,9 +128,20 @@ pub enum OpCode {
/// Note that this takes the count of *pairs*, not the number of *stack values* - the actual
/// number of values popped off the stack will be twice the argument to this op
OpAttrs(Count),
/// Merge the attribute set at {2} into the attribute set at {1},
/// and leave the new set at the top of the stack.
OpAttrsUpdate,
/// Select the attribute with the name at {1} from the set at {2}.
OpAttrsSelect,
/// Select the attribute with the name at {1} from the set at {2}, but leave
/// a `Value::AttrNotFound` in the stack instead of failing if it is
/// missing.
OpAttrsTrySelect,
/// Check for the presence of the attribute with the name at {1} in the set
/// at {2}.
OpHasAttr,
/// Throw an error if the attribute set at the top of the stack has any attributes