public Dictionary <string, string> Merge()
{
// 排序编译单元
var sortedUnits = UnitMap.Values.ToList();
sortedUnits.Sort((lhs, rhs) => GetDependOrder(lhs).CompareTo(GetDependOrder(rhs)));
// 合并编译单元
UnitMap.Clear();
var transMap = new Dictionary <string, string>();
// 收集桥接代码的所有依赖项
var bridgeUnitNames = new HashSet <string>();
var bridgeUnits = new List <CompileUnit>();
var remainUnits = new List <CompileUnit>();
for (; ;)
{
bool changed = false;
foreach (var unit in sortedUnits)
{
string unitName = unit.Name;
if (BridgeTypes.Contains(unitName) ||
bridgeUnitNames.Contains(unitName))
{
bridgeUnits.Add(unit);
bridgeUnitNames.Add(unitName);
bridgeUnitNames.UnionWith(unit.DeclDepends);
changed = true;
}
else
{
remainUnits.Add(unit);
}
}
if (changed)
{
sortedUnits = remainUnits;
remainUnits = new List <CompileUnit>();
}
else
{
break;
}
}
bridgeUnits.Sort((lhs, rhs) => GetDependOrder(lhs).CompareTo(GetDependOrder(rhs)));
// 生成桥接单元
CompileUnit bridgeUnit = new CompileUnit();
bridgeUnit.Name = "il2cppBridge";
UnitMap.Add(bridgeUnit.Name, bridgeUnit);
foreach (var unit in bridgeUnits)
{
bridgeUnit.DeclCode += "#define IL2CPP_BRIDGE_HAS_" + unit.Name + '\n';
bridgeUnit.Append(unit);
transMap[unit.Name] = bridgeUnit.Name;
}
// 划分其他编译单元
CompileUnit currUnit = NewUnit();
foreach (var unit in sortedUnits)
{
Debug.Assert(!bridgeUnit.DeclDepends.Contains(unit.Name));
currUnit.Append(unit);
transMap[unit.Name] = currUnit.Name;
if (IsUnitFull(currUnit))
{
currUnit = NewUnit();
}
}
if (currUnit.IsEmpty())
{
UnitMap.Remove(currUnit.Name);
}
foreach (var unit in UnitMap.Values)
{
var declDeps = new HashSet <string>();
foreach (string dep in unit.DeclDepends)
{
declDeps.Add(transMap[dep]);
}
unit.DeclDepends = declDeps;
var implDeps = new HashSet <string>();
foreach (string dep in unit.ImplDepends)
{
implDeps.Add(transMap[dep]);
}
unit.ImplDepends = implDeps;
unit.Optimize(UnitMap);
}
return(transMap);
}
public Dictionary <string, string> Merge()
{
// 排序编译单元
var sortedUnits = UnitMap.Values.ToList();
sortedUnits.Sort((lhs, rhs) => GetDependOrder(lhs).CompareTo(GetDependOrder(rhs)));
// 合并编译单元
UnitMap.Clear();
var transMap = new Dictionary <string, string>();
CompileUnit bridgeUnit = new CompileUnit();
bridgeUnit.Name = "il2cppBridge";
UnitMap.Add(bridgeUnit.Name, bridgeUnit);
CompileUnit currUnit = NewUnit();
foreach (var unit in sortedUnits)
{
if (BridgeTypes.Contains(unit.Name))
{
bridgeUnit.Append(unit);
transMap[unit.Name] = bridgeUnit.Name;
}
else
{
currUnit.Append(unit);
transMap[unit.Name] = currUnit.Name;
if (IsUnitFull(currUnit))
{
currUnit = NewUnit();
}
}
}
if (currUnit.IsEmpty())
{
UnitMap.Remove(currUnit.Name);
}
foreach (var unit in UnitMap.Values)
{
var declDeps = new HashSet <string>();
foreach (string dep in unit.DeclDepends)
{
declDeps.Add(transMap[dep]);
}
unit.DeclDepends = declDeps;
var implDeps = new HashSet <string>();
foreach (string dep in unit.ImplDepends)
{
implDeps.Add(transMap[dep]);
}
unit.ImplDepends = implDeps;
unit.Optimize(UnitMap);
}
return(transMap);
}
