- TemplatableFn = delete now catches both stateful lambdas AND stateless
lambdas with inconvertible return types (e.g., string -> int)
- Add test for to_exp with non-string output_type (lambda-wraps result)
Specialize TemplatableValue so non-string types use function-pointer-only
storage (4 bytes on 32-bit) instead of the tagged union with std::function
support (8 bytes). The std::string specialization retains full support for
VALUE, STATIC_STRING, FLASH_STRING, and stateful lambdas.
Codegen now wraps non-string constants in stateless lambdas automatically,
so the generated C++ always assigns a function pointer.
Bitfield component_source_index_ (9 bits) and warn_if_blocking_over_
(7 bits) into the same 16 bits. This doubles the max unique component
source names from 255 to 511 without increasing Component size.
The blocking warn threshold max drops from 2550ms to 1270ms which is
more than sufficient since it starts at 50ms and ratchets up.
Fixes test warnings when many components are compiled together:
WARNING Too many unique component source names (max 255)
- TriggerForwarder::operator() now takes const Ts&... to avoid
copies of non-trivial types (e.g., std::string).
- Revert lock to trigger-based pattern: LockStateForwarder holds
two pointers (automation + lock), exceeding sizeof(void*) which
would cause Callback::create to heap-allocate.
- Remove forwarder_extra_args from API since lock was the only user.
Replace bool_filter with generic forwarder parameter that accepts
any struct type. Components can define their own forwarders with
custom fields (e.g., LockStateForwarder needs both automation and
lock entity pointers).
Migrates number (NumberStateTrigger) and lock (LockStateTrigger)
to prove the API is flexible enough for diverse patterns.
Replace per-site lambda generation with TriggerForwarder<Ts...>,
TriggerOnTrueForwarder, and TriggerOnFalseForwarder structs. The
compiler generates one operator() per forwarder type shared across
all call sites, avoiding flash duplication from unique lambdas.
Also cleans up API: replaces condition/callback_args with
bool_filter using TRIGGER_ON_TRUE/TRIGGER_ON_FALSE constants.
Tests the lambda output format for all variations used by
build_callback_automation: no args, typed args, conditions,
multiple args, and empty capture.
J. Nick Koston