[sim] Move WPILib C++ sim implementations out of line (#2598)

This makes the sim classes consistent with the rest of the WPILibC classes.

wpilibc/src/main/native/cpp/simulation/DigitalPWMSim.cpp

@@ -0,0 +1,81 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2018-2020 FIRST. All Rights Reserved.                        */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in the root directory of */
+/* the project.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#include "frc/simulation/DigitalPWMSim.h"
+
+#include <memory>
+#include <stdexcept>
+#include <utility>
+
+#include <hal/simulation/DigitalPWMData.h>
+
+#include "frc/DigitalOutput.h"
+
+using namespace frc;
+using namespace frc::sim;
+
+DigitalPWMSim::DigitalPWMSim(const DigitalOutput& digitalOutput)
+    : m_index{digitalOutput.GetChannel()} {}
+
+DigitalPWMSim DigitalPWMSim::CreateForChannel(int channel) {
+  int index = HALSIM_FindDigitalPWMForChannel(channel);
+  if (index < 0) throw std::out_of_range("no digital PWM found for channel");
+  return DigitalPWMSim{index};
+}
+
+DigitalPWMSim DigitalPWMSim::CreateForIndex(int index) {
+  return DigitalPWMSim{index};
+}
+
+std::unique_ptr<CallbackStore> DigitalPWMSim::RegisterInitializedCallback(
+    NotifyCallback callback, bool initialNotify) {
+  auto store = std::make_unique<CallbackStore>(
+      m_index, -1, callback, &HALSIM_CancelDigitalPWMInitializedCallback);
+  store->SetUid(HALSIM_RegisterDigitalPWMInitializedCallback(
+      m_index, &CallbackStoreThunk, store.get(), initialNotify));
+  return store;
+}
+
+bool DigitalPWMSim::GetInitialized() const {
+  return HALSIM_GetDigitalPWMInitialized(m_index);
+}
+
+void DigitalPWMSim::SetInitialized(bool initialized) {
+  HALSIM_SetDigitalPWMInitialized(m_index, initialized);
+}
+
+std::unique_ptr<CallbackStore> DigitalPWMSim::RegisterDutyCycleCallback(
+    NotifyCallback callback, bool initialNotify) {
+  auto store = std::make_unique<CallbackStore>(
+      m_index, -1, callback, &HALSIM_CancelDigitalPWMDutyCycleCallback);
+  store->SetUid(HALSIM_RegisterDigitalPWMDutyCycleCallback(
+      m_index, &CallbackStoreThunk, store.get(), initialNotify));
+  return store;
+}
+
+double DigitalPWMSim::GetDutyCycle() const {
+  return HALSIM_GetDigitalPWMDutyCycle(m_index);
+}
+
+void DigitalPWMSim::SetDutyCycle(double dutyCycle) {
+  HALSIM_SetDigitalPWMDutyCycle(m_index, dutyCycle);
+}
+
+std::unique_ptr<CallbackStore> DigitalPWMSim::RegisterPinCallback(
+    NotifyCallback callback, bool initialNotify) {
+  auto store = std::make_unique<CallbackStore>(
+      m_index, -1, callback, &HALSIM_CancelDigitalPWMPinCallback);
+  store->SetUid(HALSIM_RegisterDigitalPWMPinCallback(
+      m_index, &CallbackStoreThunk, store.get(), initialNotify));
+  return store;
+}
+
+int DigitalPWMSim::GetPin() const { return HALSIM_GetDigitalPWMPin(m_index); }
+
+void DigitalPWMSim::SetPin(int pin) { HALSIM_SetDigitalPWMPin(m_index, pin); }
+
+void DigitalPWMSim::ResetData() { HALSIM_ResetDigitalPWMData(m_index); }