Method postCall

stack.go:343–365

(firstResult int)

}

func (l *State) postCall(firstResult int) bool {
	ci := l.callInfo
	if l.hookMask&MaskReturn != 0 {
		l.hook(HookReturn, -1)
	}
	result, wanted, i := ci.function, ci.resultCount, 0
	l.callInfo = ci.previous // back to caller
	// TODO this is obscure - I don't fully understand the control flow, but it works
	for i = wanted; i != 0 && firstResult < l.top; i-- {
		l.stack[result] = l.stack[firstResult]
		result++
		firstResult++
	}
	for ; i > 0; i-- {
		l.stack[result] = nil
		result++
	}
	l.top = result
	if l.hookMask&(MaskReturn|MaskLine) != 0 {
		l.oldPC = l.callInfo.savedPC // oldPC for caller function
	}
	return wanted != MultipleReturns
}

// Call a Go or Lua function. The function to be called is at function.
// The arguments are on the stack, right after the function. On return, all the