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Code Issues Releases Wiki Activity

add comments to explain to copilot why std::vector convert is needed

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This commit is contained in:
J. Nick Koston
2025-09-29 20:15:31 -05:00
parent d381a220f7
commit 29b6a1a6aa
1 changed files with 8 additions and 2 deletions
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10
esphome/components/esp32_ble_server/ble_server_automations.cpp
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@@ -15,7 +15,10 @@ Trigger<std::vector<uint8_t>, uint16_t> *BLETriggers::create_characteristic_on_w
Trigger<std::vector<uint8_t>, uint16_t> *on_write_trigger = // NOLINT(cppcoreguidelines-owning-memory)
new Trigger<std::vector<uint8_t>, uint16_t>();
characteristic->on_write([on_write_trigger](std::span<const uint8_t> data, uint16_t id) {
// Convert span to vector for trigger
// Convert span to vector for trigger - copy is necessary because:
// 1. Trigger stores the data for use in automation actions that execute later
// 2. The span is only valid during this callback (points to temporary BLE stack data)
// 3. User lambdas in automations need persistent data they can access asynchronously
on_write_trigger->trigger(std::vector<uint8_t>(data.begin(), data.end()), id);
});
return on_write_trigger;
@@ -27,7 +30,10 @@ Trigger<std::vector<uint8_t>, uint16_t> *BLETriggers::create_descriptor_on_write
Trigger<std::vector<uint8_t>, uint16_t> *on_write_trigger = // NOLINT(cppcoreguidelines-owning-memory)
new Trigger<std::vector<uint8_t>, uint16_t>();
descriptor->on_write([on_write_trigger](std::span<const uint8_t> data, uint16_t id) {
// Convert span to vector for trigger
// Convert span to vector for trigger - copy is necessary because:
// 1. Trigger stores the data for use in automation actions that execute later
// 2. The span is only valid during this callback (points to temporary BLE stack data)
// 3. User lambdas in automations need persistent data they can access asynchronously
on_write_trigger->trigger(std::vector<uint8_t>(data.begin(), data.end()), id);
});
return on_write_trigger;