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385f500497
Two parts to this:
* Only allow vector slice assignment in statement contexts, not in
arbitrary assignment expressions. E.g. it's not clear what the
resulting value of `(v[1:2] = vector(1))` is for further expression
chaining. For reference, Python doesn't allow it either.
* Add a subclass of AssignExpr to specialize the behavior for index
slice assignments (because its behavior regarding expression
chaining is different per the previous point) and Unref the RHS
of things like `v[1:2] = vector(1)` after IndexExpr::Assign is
finished inserting it (since no one else takes ownership of it).
Instead of using an Expr subclass, IndexSliceAssignExpr, we could
use a proper Stmt, since that's the only context we currently use it
for, but if we did ever to decide on allowing its use in arbitrary
expression contexts, then I expect we'll need it this way anyway
(just with a different IndexSliceAssignExpr::Eval implementation).
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This directory contains suites for testing for Zeek's correct
operation:
btest/
An ever-growing set of small unit tests testing Zeek's
functionality.
external/
A framework for downloading additional test sets that run more
complex Zeek configuration on larger traces files. Due to their
size, these are not included directly. See the README for more
information.
scripts/
Helpers scripts used by some tests.