Class LFunctionType

UnLuac/src/unluac/parse/LFunctionType.java:13–181

abstract public class LFunctionType extends BObjectType<LFunction> {
  
  public static LFunctionType get(Version.FunctionType type) {
    switch(type) {
      case LUA50: return new LFunctionType50();
      case LUA51: return new LFunctionType51();
      case LUA52: return new LFunctionType52();
      case LUA53: return new LFunctionType53();
      case LUA54: return new LFunctionType54();
      default: throw new IllegalStateException();
    }
  }
  
  protected static class LFunctionParseState {
    
    public LString name;
    int lineBegin;
    int lineEnd;
    int lenUpvalues;
    int lenParameter;
    int vararg;
    int maximumStackSize;
    int length;
    int[] code;
    BList<LObject> constants;
    BList<LFunction> functions;
    BList<BInteger> lines;
    BList<LAbsLineInfo> abslineinfo;
    BList<LLocal> locals;
    LUpvalue upvalues[];
  }
  
  @Override
  public LFunction parse(ByteBuffer buffer, BHeader header) {
    if(header.debug) {
      System.out.println("-- beginning to parse function");
    }
    if(header.debug) {
      System.out.println("-- parsing name...start...end...upvalues...params...varargs...stack");
    }
    LFunctionParseState s = new LFunctionParseState();
    parse_main(buffer, header, s);
    int[] lines = new int[s.lines.length.asInt()];
    for(int i = 0; i < lines.length; i++) {
      lines[i] = s.lines.get(i).asInt();
    }
    LAbsLineInfo[] abslineinfo = null;
    if(s.abslineinfo != null) {
      abslineinfo = s.abslineinfo.asArray(new LAbsLineInfo[s.abslineinfo.length.asInt()]);
    }
    LFunction lfunc = new LFunction(header, s.name, s.lineBegin, s.lineEnd, s.code, lines, abslineinfo, s.locals.asArray(new LLocal[s.locals.length.asInt()]), s.constants.asArray(new LObject[s.constants.length.asInt()]), s.upvalues, s.functions.asArray(new LFunction[s.functions.length.asInt()]), s.maximumStackSize, s.lenUpvalues, s.lenParameter, s.vararg);
    for(LFunction child : lfunc.functions) {
      child.parent = lfunc;
    }
    if(s.lines.length.asInt() == 0 && s.locals.length.asInt() == 0) {
      lfunc.stripped = true;
    }
    return lfunc;