By avoiding to use `broker::data` directly, we gain a degree of freedom
that allows us to swap out `broker::data` for something else (e.g.,
`broker::variant`) in the future. Furthermore, it also helps us to keep
Broker types "local" to the Broker manager and gives us a nicer
interface.
Also replaces uses of `broker::expected` with `std::optional`. While an
`expected `can carry additional information as to why a value is not
present, nothing in Zeek ever cared about that. Hence, using
`std::optional` removes an unnecessary dependency on a Broker detail
while also being more efficient (no extra heap allocation when no value
is present).
This largely copies over Spicy's `.clang-format` configuration file. The
one place where we deviate is header include order since Zeek depends on
headers being included in a certain order.
* origin/topic/vern/when-cleanup:
test suite update for minor change in "when" error messages
removed skeletal (non-functioning) "when" support from ZAM
simplify WhenInfo and Trigger classes given removal of old capture semantics
introduced notion of light-weight Frame clones
changed function_ingredients struct to FunctionIngredients class with accessors
Renamed Frame::LightClone() to Frame::CloneForTrigger() during merge.
maintenance fixes for variadic run-time checks, '_' placeholder identifier
"-O allow-cond" permits compiling scripts to C++ when influenced by @if conditionals
more robust standalone compile-to-C++ properties
fix for nested "when" statements
test suite updates
* Rename overly generic ACCESSORS macro with ZEEK_ prefix
* A few places where whitespace was noticeably wrong/distracting
* Minor/obvious reference/move semantics improvements suggested by linter
* Remove unused detail::Scope::Remove(), no need for deprecation
Merge adjustments:
- Preserved original `base_type_no_ref` argument type as ::TypeTag
- Removed superfluous #pragma guard around deprecated TableVal ctor
- Clarify NEWS regarding MetaHook{Pre,Post} deprecations
- Simplify some `::zeek::` qualifications to just `zeek::`
- Prefixed FORWARD_DECLARE_NAMESPACED macro with ZEEK_
* origin/topic/timw/266-namespaces:
Disable some deprecation diagnostics for GCC
Rename BroType to Type
Update NEWS
Review cleanup
Move Type types to zeek namespace
Move Flare/Pipe from the bro namespace to zeek::detail
Move Attr to the zeek::detail namespace
Move Trigger into the zeek::detail namespace
Move ID to the zeek::detail namespace
Move Anon.h into zeek::detail namespace
Mark all of the aliased classes in plugin/Plugin.h deprecated, and fix all of the plugins that were using them
Move all of the base plugin classes into the zeek::plugin namespace
Expr: move all classes into zeek::detail
Stmt: move Stmt classes into zeek::detail namespace
Add utility macro for creating namespaced aliases for classes
* origin/topic/timw/nullptr:
The remaining nulls
plugin/probabilistic/zeekygen: Replace nulls with nullptr
file_analysis: Replace nulls with nullptr
analyzer: Replace nulls with nullptr
iosource/threading/input/logging: Replace nulls with nullptr
