abstract boolean isSupportsBuildOperations()

    abstract DomainObjectCollection<T> getContainer()

    abstract T getA()

    abstract T getB()

    abstract T getC()

    abstract <S extends T> S getD()

    Class<T> getType() {
        return a.class
    }

    @SuppressWarnings("GrUnnecessaryPublicModifier")
    public <S extends T> Class<S> getOtherType() {

	CmdGet.Run = runGet // break init loop
	CmdGet.Flag.Var(&getD, "d", "")
	CmdGet.Flag.Var(&getU, "u", "")
}

func runGet(ctx context.Context, cmd *base.Command, args []string) {
	switch getU.version {
	case "", "upgrade", "patch":
		// ok
	default:
		base.Fatalf("go: unknown upgrade flag -u=%s", getU.rawVersion)
	}
	if getD.set {
		if !getD.value {
			base.Fatalf("go: -d flag may not be set to false")
		}

// This must be called with preemption enabled.
func gcAssistAlloc(gp *g) {
	// Don't assist in non-preemptible contexts. These are
	// generally fragile and won't allow the assist to block.
	if getg() == gp.m.g0 {
		return
	}
	if mp := getg().m; mp.locks > 0 || mp.preemptoff != "" {
		return
	}

	// This extremely verbose boolean indicates whether we've
	// entered mark assist from the perspective of the tracer.
	//

				break
			}
			dstx := (*uintptr)(unsafe.Pointer(addr))
			p := buf.get1()
			p[0] = *dstx
		}
	} else {
		for {
			var addr uintptr
			if tp, addr = tp.next(dst + size); addr == 0 {
				break
			}
			dstx := (*uintptr)(unsafe.Pointer(addr))
			srcx := (*uintptr)(unsafe.Pointer(src + (addr - dst)))
			p := buf.get2()
			p[0] = *dstx
			p[1] = *srcx
		}
	}
}

      }
      Operation* symbol = symbol_table.lookup(caller.getF());
      if (symbol == nullptr) {
        func.emitError() << "Symbol not found in SymbolTable: "
                         << caller.getF();
        return LogicalResult::failure();
      }
      if (!llvm::isa<func::FuncOp>(symbol)) {
        func.emitError() << "Invalid callee: " << caller.getF();
        return LogicalResult::failure();
      }

			// mark using checkmark bits, to check that we
			// didn't forget to mark anything during the
			// concurrent mark process.
			startCheckmarks()
			gcResetMarkState()
			gcw := &getg().m.p.ptr().gcw
			gcDrain(gcw, 0)
			wbBufFlush1(getg().m.p.ptr())
			gcw.dispose()
			endCheckmarks()
		}

		// marking is complete so we can turn the write barrier off
		setGCPhase(_GCoff)
		stwSwept = gcSweep(work.mode)

	}
	call(cgoSymbolizer, noescape(unsafe.Pointer(arg)))
}

// cgoContextPCs gets the PC values from a cgo traceback.
func cgoContextPCs(ctxt uintptr, buf []uintptr) {
	if cgoTraceback == nil {
		return
	}
	call := cgocall
	if panicking.Load() > 0 || getg().m.curg != getg() {
		// We do not want to call into the scheduler when panicking
		// or when on the system stack.

	pkg := objabi.PathToPrefix(lib.Pkg)

	eof := f.Offset() + length
	start := f.Offset()
	c1 := bgetc(f)
	c2 := bgetc(f)
	c3 := bgetc(f)
	c4 := bgetc(f)
	f.MustSeek(start, 0)

	unit := &sym.CompilationUnit{Lib: lib}
	lib.Units = append(lib.Units, unit)

	magic := uint32(c1)<<24 | uint32(c2)<<16 | uint32(c3)<<8 | uint32(c4)

				} else if size&1 == 0 {
					align = 2
				} else {
					align = 1
				}
			}
			return persistentalloc(size, align, &memstats.other_sys)
		}

		if inittrace.active && inittrace.id == getg().goid {
			// Init functions are executed sequentially in a single goroutine.
			inittrace.allocs += 1
		}
	}

	// assistG is the G to charge for this allocation, or nil if

type mSpanStateBox struct {
	s atomic.Uint8
}

// It is nosplit to match get, below.

//go:nosplit
func (b *mSpanStateBox) set(s mSpanState) {
	b.s.Store(uint8(s))
}

// It is nosplit because it's called indirectly by typedmemclr,
// which must not be preempted.

//go:nosplit
func (b *mSpanStateBox) get() mSpanState {
	return mSpanState(b.s.Load())
}