Closure

“ In this way one can say that variables are divided by the compiler into two classes: those which are implicitly cells, and those which are not.) A closure (LAMBDA-expression) causes a CONS side-effect. This is not so much because SCHEME programs depend on being able to do EQ on closures (it is unclear whether this is a reasonable thing to specify in the semantics of SCHEME) , as because there is no point in creating two closures when one will suffice. Adjoining CONS to EFFS will prevent the creation of such duplicate code by the optimizer. ”

“ DEFINE This is analogous to the MacLISP DEFUN primitive (but note that the LAMBDA must appear explicitly!) . It is used for defining a function in the "global environment" permanently, as opposed to LABELS (see below) , which is used for temporary definitions in a local environment. DEFINE takes a name and a lambda expression; it closes the lambda expression in the global environment and stores the closure in the LISP value cell of the name (which is a LISP atom) . ”

“ Within the compiler an environment structure is also represented as a simple list, with the name of a variable occupying the position which its value will occupy in the run-time environment.
For every CLANBDA, CONTINUATION, and CLABELS, a slot called CONSENV is filled in, which is a list representing what the environment structure will look like when the closure (s) for that construct are to be constructed, if any. This is done by walking over the cnode-tree and doing to the environment representation precisely what will be done to the real environment at run time. ”

“ And no doubt the fact that he has put up the temporary inclosure means that the rebuilding will be put into his hands, and no better man could probably be found.”
“You are right. If we employ him he ’s certain to lose no time about it.” ”

“ We looked at the small neglected enclosure, where the hand and foot of man might not have intruded for ages, and almost expected to see rising from their graves the dead who had possibly lain there for eight centuries. ”

“ The previous discovery of the closed aperture, with the instant oblivion that followed, seemed only a part of my dream, and I threw my arms about and looked eagerly for the opening by which I had entered the horrid place—yes, looked for it, and felt for it, though it was the terrible conviction that it was closed—a second time brought home to me—which prompted my frenzied cry. Every sense seemed to have tenfold acuteness, yet not one to act in unison with another. ”

“ Suddenly a rift shows itself in the otherwise forever closed door between this life and the other, to close again quickly—the door, which will wholly open in death, and only then will open never more to be closed. ”

“ Not on the early world's romances,
Should the cell close its funeral stone!
Still is the quiet cloister wanted,
For those who wear a weary eye;
Whose life has long been disenchanted,
Who have one only wish—to die. ”

“ You have come for her, — have you?
Do not sever, for God's sake,
Our bond! — But death says:
"I understand your worry, —
I have severed many bonds;
Your bond is so strong
That I cannot sever it." ”

“ The awful drama, the tragic scenes of which opening and closing successively amidst the cries of the dying and the tears of widows and orphans, and extending its desolations to generations yet unborn, will be without a parallel in the history of the world! ”

“ It is by no means desirable to be shut up for life, let the place of confinement be ever so splendid; but should it be our lot to be caught and imprisoned, which may possibly be the case, adopt the sentiments of the linnet and canary birds; employment will pass away many an hour that would be a heavy load if spent in grief and anxiety, and reflections on the blessings and comforts that are still in your power will lessen your regret for those which are lost. ”

“ Suspense, more wearing even than sorrow, had held him on the rack. Sleep had seldom visited his eyes; and when it came, it had been broken and fitful.
Now the worst had befallen him. Suspense was over; certainty had come. This brought at first a kind of rest to the overtaxed mind and frame. He was as one who hears a sentence of death, but who is taken off the rack. ”

“ It is easy to build an
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57 interpreter for this subset, given the existence of a SCHEME interpreter, which can execute the transformed program directly at this level. This cannot be said for other traditional intermediate compilation forms; building an interpreter for triples [Gries] , for example, would be a tremendous undertaking. The continuation-passing version expresses all temporary intermediate results explicitly as variables appearing in the program text, and all temporary control structure in the form of LAMBDA-expressions (that is, closures) . ”

“ How often does it happen, that when death first enters a family circle, and creates a breach; it is the signal of its speedy dissolution! one falls, then another, and another, until the central point of attraction is removed; and the individuals who are left, are by the force of circumstances, each made to feel themselves the centre of a new circle of interests, which in time will melt away as former ones have done. ”

“ The SCHEME Reference Manual SCHEME is essentially a full-funarg LISP. LAMBDA expressions need not be QUOTEd, FUNCTIONed, or *FUNCTIONed when passed as arguments or returned as values; they will evaluate to closures of themselves. ”

“ Are there any left alive?' And he shall say, 'No, this is the last; now the whole family is cut off by death, and neither root nor branch remains.'" But that which makes the judgment the more grievous is that their hearts seem to be hardened under it. ”

“ Shutters and doors all closed: on us the doors are closed— We turn back to our dying. Since we believe not otherwise can kind fires burn; Nor ever suns smile true on child, or field, or fruit. For God's invincible spring our love is made afraid ”

“ The Collect of the day should have its full ending. If two collects are said, the second also, ordinarily, should have the full ending. If more than two collects are said, only the first and the last should have the full ending. If the collect is addressed to the Father, the full ending should be Through Jesus Christ thy Son our Lord, who liveth and reigneth with Thee, in the unity of the Holy Ghost, ever one God, world without end. ”

“ If it should be the fate of any of you to count the moments of captivity, in sorrow and in pain, pining in a dungeon's damps, may you find refuge in the recollection of the example you this day set to those who may be called to pass judgment on your lives! ”

“ Sometimes a leave-taking under circumstances, that seem to forebode it to be the last and clothe it in gloom, and sorrow, is nevertheless not the last by many; while a cheerful good-by with a light hearted “ta-ta-old-fellow-see-you-to-morrow,” may prove the beginning of a separation destined to endure for years—perhaps forever. ”

“ Which of us could say he would never turn a key in the lock of an empty house? How many casual little twists of the wrist of Fate stand between the best of us and the step down from the threshold of a broken home? ”

“ It is mournful to remember that we have seen this ploughing continue till the sun has touched the horizon and the night dews have begun to fall. Even then the long-suffering God has followed up his work—ploughing, ploughing, ploughing, ploughing, till darkness ended all. Do I address any aged ones whose lease must soon run out? ”

“ The anguish of suspense, at least, is ended, and even if it be to undergo an operation, and to blow one’s own brains out, men will become composed, and sometimes even cheerful, as the coroner’s inquest discovers, when once the way and the end are known. ”

“ The analogy of a person who has been sentenced to imprisonment for a certain period, and who, on the expiration of that period, is at once released, has been referred to, as apposite to the case of a definite suspension. Still more appropriately may we refer to the case of a person transported for a term of years, and who cannot return until that term expires, but who is at liberty at once to do so when it has expired. ”

“ It marked the advent of the last reprieve, that release that can never be recalled. The clouds have passed away for ever, and in the sunshine came the solace of all cares, the finality of pain, and the soothing and the solution of all sorrow. ”

“ The great objects of life were accomplished, the drama was ready to be closed. It has closed; our patriots have fallen; but so fallen, at such age, with such coincidence, on such a day, that we cannot rationally lament that that end has come, which we knew could not be long deferred. ”

“ Closing such a life as this comes the unhonoured end, when the miserable made-up old creature totters down into the grave where paint and padding, and glossy plaits cut from some fresh young head, are of no more avail; and where death, which makes all things real, reduces her life of lies to the nothingness it has been from the beginning. ”

“ They have raised families of lovely children, they have passed through sorrow, tribulation and joy, tasted the sweet and the bitter together, but when they reach the grave farewell for ever, an eternal separation takes place. ”

“ Yet succession is an undeniable fact, even in the material world. Though our reasoning on isolated systems may imply that their history, past, present, and future, might be instantaneously unfurled like a fan, this history, in point of fact, unfolds itself gradually, as if it occupied a duration like our own. ”

“ Now shutting out things is all very well, but it has one simple corollary--that from everything that we shut out we are ourselves shut out. When we shut our door on the wind, it would be equally true to say that the wind shuts its door on us. ”

“ As we depart in mournful silence, brooding over the days that are no more, we see in fancy the numerous bright eyes which from lairs and eyries are watching our every move, their owners all ready to swoop down on our débris as soon as we have passed out of sight. ”

“ Reynolds's fit of the gout.'
'Why, that's true, because of his will,' said her ladyship; 'but a will's soon made, is not it? That can't be much delay.'
'And then there must be settlements,' said Lord Clonbrony; 'they take time. Lovers, like all the rest of mankind, must submit to the law's delay. ”

“ To that oblivious cell,—
From whence no tenant e'er return'd
Among mankind to dwell,—
And there, the glory of his house,
A lifeless ruin lay,—
And bowing down in bitter woe
He kiss'd the unanswering clay. ”

“ They are means to an end. What if the means come to interpose between us and the end—just as a great political thinker has observed that with legal minds the forms of business frequently overshadow the substance of business, which is their end, and for which they were called into existence. And what is the end of our Christian calling? A life pardoned; in process of purification; growing in faith, in love of God and man, in quiet joyful service. ”

“ I can cheerfully take it now, or with equal cheerfulness I can wait.
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“My foothold is tenon’d and mortis’d in granite;
I laugh at what you call dissolution;
And I know the amplitude of time.”
What lies through the portal of death is hidden from us; but the laws that govern that unknown land are not all hidden from us, for they govern here and now; they are immutable, eternal. ”

“ Ten long, weary months had come and passed away with their pomp and mutation, finding and leaving him within a [339] prison's walls; and now, the lapse of a few short, rapid hours would behold a tenement in ruins, and a soul set free. Another day-break, and he would know the untried and unimaginable realities of a shoreless eternity, from whose everlasting portals men have so often shrunk back appalled. ”

“ THEY die in such rapid succession! You hardly have time, after returning from a funeral, to think about who is to be the successor of the lamented dead, when you hear of the demise of another illustrious colleague. ”

“ The great sorrow of this day is separation. It is a sense of separation, of loss, and bereavement, that has drawn forth so many tears. Indeed there is little besides to cause a tear. As far as she is concerned there is no cause for sorrow. ”

“ The chain which linked our hearts with the gifted spirits of former times, has been rudely snapped. The lips from which flowed those living and glorious truths that our fathers uttered, are closed in death! ”

“ At the top it told the sorrows of an exile's heart;
At the bottom it described the pains of separation.
The sorrows and pains took up so much space
There was no room left to talk about the weather! ”

“ My forebodings might possibly be groundless. All within might be safety and serenity. A respite might be gained from the execution of an irrevocable sentence. What could I do? Was not any thing easy to endure in comparison with the agonies of suspense? If I could not obviate the evil I must bear it, but the torments of suspense were susceptible of remedy.
I drew back the bolt, and entered with the reluctance of fear, rather than the cautiousness of guilt. ”

“ What a singular feature does the whole system expose, and how fond of the world must they be who practise it! Who can tell whether this House of Recovery does not creep in among the fading hopes of the death-bed, and if, among the last farewells of parting life, some thoughts of that last chance are not present to the sick man’s mind? ”

“ Death, it would seem, is but a change of house, we have failed to repair the present tenement, or it is too small for us, or our neighbourhood is unsuitable, so we are given the chance of another, and after that, perchance, yet another and another, through all the lives appointed to us. ”

“ But when concession is made, when tears of penitence are wept, and when, in moments of returning confidence, that luckless tendency of temper is candidly confessed, and sincerely bewailed; when all the different acts committed under its influence, are acknowledged to have been wrong, how complete ought to be the reconciliation thus begun, and how zealous our endeavours for the future to avert the consequences of this sad calamity! ”