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[hal] Refactor C++ handle closing; check for invalid handle before closing (#7016)
Adds a close function pointer template parameter to hal::Handle. This allows default destructors in many places. The status parameter has been removed from close functions; in most places it was not used. Where it was, an error is printed instead.
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@@ -46,12 +46,8 @@ PWM::PWM(int channel, bool registerSendable) {
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PWM::~PWM() {
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int32_t status = 0;
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HAL_SetPWMDisabled(m_handle, &status);
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FRC_ReportError(status, "Channel {}", m_channel);
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HAL_FreePWMPort(m_handle, &status);
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FRC_ReportError(status, "Channel {}", m_channel);
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}
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void PWM::SetPulseTime(units::microsecond_t time) {
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