public static IEnumerable <Group> GroupCode(CacheFile cache, FunctionDefinition function)
{
var instance = new InstructionGrouper(cache, function);
foreach (var group in instance.GroupCode())
{
yield return(group);
}
}
private static void DumpFunction(CacheFile cacheFile, FunctionDefinition function, StringBuilder sb, bool validate)
{
var functionName = function.ToName();
if (function.Name != functionName)
{
sb.AppendLine($"// {function.Name}");
}
sb.AppendLine(GetFunctionDeclaration(function, fullName: true));
sb.AppendLine("{");
const FunctionFlags ignoredFlags = FunctionFlags.HasReturnValue |
FunctionFlags.HasParameters | FunctionFlags.HasLocals |
FunctionFlags.HasCode;
var flags = function.Flags & ~ignoredFlags;
if (flags != FunctionFlags.None)
{
sb.AppendLine($" // Flags : {flags}");
}
if (function.Locals != null && function.Locals.Count > 0)
{
foreach (var local in function.Locals)
{
sb.AppendLine($" var {local.ToName()} : {local.Type.ToPath()};");
}
sb.AppendLine();
}
var groups = InstructionGrouper.GroupCode(cacheFile, function).ToArray();
var groupStack = new LinkedList <(InstructionGrouper.Group group, string indent, bool isLast)>();
for (int i = 0; i < groups.Length; i++)
{
groupStack.AddLast((groups[i], "", i == groups.Length - 1));
}
int opcodeIndex = 0;
while (groupStack.Count > 0)
{
var(group, indent, isLast) = groupStack.First.Value;
groupStack.RemoveFirst();
var instruction = group.Instruction;
sb.Append(' ');
if (instruction.LoadPosition < 0)
{
sb.Append($" (@0x?????? ????)");
}
else
{
var loadPosition = instruction.LoadPosition;
long absolutePosition;
long relativePosition;
if (validate)
{
absolutePosition = loadPosition + function.LoadPosition;
relativePosition = loadPosition - function.CodeLoadPosition;
}
else
{
absolutePosition = loadPosition;
relativePosition = loadPosition - function.CodeLoadPosition;
}
sb.Append($" (@0x{absolutePosition:X6} {relativePosition,4})");
}
sb.Append($" #{opcodeIndex++,-4}");
sb.Append(indent);
sb.Append(isLast == true ? " └─" : " ├─");
DumpInstruction(instruction, sb);
var lastChildIndex = group.Children.Count - 1;
for (int i = lastChildIndex; i >= 0; i--)
{
var child = group.Children[i];
groupStack.AddFirst((child, indent + (isLast == true ? " " : " │ "), i == lastChildIndex));
}
}
sb.AppendLine("}");
}