X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fearly-c.lisp;h=0ff78207e27d3e47477a1ae758fcff51ff8b4047;hb=31361af9eb64344f521abbb245ea784c76c746e5;hp=6e461739f78081d989cb8bce4f7a82997cc40503;hpb=c9c0e648c51317ff374851c4fcc740a15d37acae;p=sbcl.git diff --git a/src/compiler/early-c.lisp b/src/compiler/early-c.lisp index 6e46173..0ff7820 100644 --- a/src/compiler/early-c.lisp +++ b/src/compiler/early-c.lisp @@ -15,13 +15,26 @@ (in-package "SB!C") -(file-comment - "$Header$") +;;; ANSI limits on compilation +(defconstant sb!xc:call-arguments-limit most-positive-fixnum + #!+sb-doc + "The exclusive upper bound on the number of arguments which may be passed + to a function, including &REST args.") +(defconstant sb!xc:lambda-parameters-limit most-positive-fixnum + #!+sb-doc + "The exclusive upper bound on the number of parameters which may be specifed + in a given lambda list. This is actually the limit on required and &OPTIONAL + parameters. With &KEY and &AUX you can get more.") +(defconstant sb!xc:multiple-values-limit most-positive-fixnum + #!+sb-doc + "The exclusive upper bound on the number of multiple VALUES that you can + return.") -;;; FIXME: shouldn't SB-C::&MORE be in this list? -(defconstant sb!xc:lambda-list-keywords +;;; FIXME: Shouldn't SB!C::&MORE be in this list? +(defconstant-eqx sb!xc:lambda-list-keywords '(&optional &rest &key &aux &body &whole &allow-other-keys &environment) #!+sb-doc + #'equal "symbols which are magical in a lambda list") ;;;; cross-compiler-only versions of CL special variables, so that we @@ -40,55 +53,16 @@ ;;; the type of LAYOUT-DEPTHOID slot values (def!type sb!kernel::layout-depthoid () '(or index (integer -1 -1))) - -;;; a value for an optimization declaration -(def!type sb!c::cookie-quality () '(or (rational 0 3) null)) -;;; A COOKIE holds information about the compilation environment for a -;;; node. See the LEXENV definition for a description of how it is -;;; used. -(def!struct (cookie (:copier nil)) - (speed nil :type cookie-quality) - (space nil :type cookie-quality) - (safety nil :type cookie-quality) - (cspeed nil :type cookie-quality) - (brevity nil :type cookie-quality) - (debug nil :type cookie-quality)) - -;;; KLUDGE: This needs to be executable in cold init toplevel forms, earlier -;;; than the default copier closure created by DEFSTRUCT toplevel forms would -;;; be available, and earlier than LAYOUT-INFO is initialized (which is a -;;; prerequisite for COPY-STRUCTURE to work), so we define it explicitly using -;;; DEFUN, so that it can be installed by the cold loader, and using -;;; hand-written, hand-maintained slot-by-slot copy it doesn't need to call -;;; COPY-STRUCTURE. -- WHN 19991019 -(defun copy-cookie (cookie) - (make-cookie :speed (cookie-speed cookie) - :space (cookie-space cookie) - :safety (cookie-safety cookie) - :cspeed (cookie-cspeed cookie) - :brevity (cookie-brevity cookie) - :debug (cookie-debug cookie))) - -;;; *DEFAULT-COOKIE* holds the current global compiler policy information. -;;; Whenever the policy is changed, we copy the structure so that old uses will -;;; still get the old values. *DEFAULT-INTERFACE-COOKIE* holds any values -;;; specified by an OPTIMIZE-INTERFACE declaration. -;;; -;;; FIXME: Why isn't COOKIE called POLICY? -(declaim (type cookie *default-cookie* *default-interface-cookie*)) -(defvar *default-cookie*) ; initialized in cold init -(defvar *default-interface-cookie*) ; initialized in cold init - ;;; possible values for the INLINE-ness of a function. (deftype inlinep () '(member :inline :maybe-inline :notinline nil)) -(defconstant inlinep-translations +(defparameter *inlinep-translations* '((inline . :inline) (notinline . :notinline) (maybe-inline . :maybe-inline))) -;;; The lexical environment we are currently converting in. +;;; the lexical environment we are currently converting in (defvar *lexenv*) (declaim (type lexenv *lexenv*)) @@ -97,13 +71,13 @@ ;;; *FREE-VARIABLES*, only it deals with function names. (defvar *free-variables*) (defvar *free-functions*) -(declaim (hash-table *free-variables* *free-functions*)) +(declaim (type hash-table *free-variables* *free-functions*)) -;;; We use the same Constant structure to represent all equal anonymous -;;; constants. This hashtable translates from constants to the Leafs that +;;; We use the same CONSTANT structure to represent all equal anonymous +;;; constants. This hashtable translates from constants to the LEAFs that ;;; represent them. (defvar *constants*) -(declaim (hash-table *constants*)) +(declaim (type hash-table *constants*)) ;;; miscellaneous forward declarations (defvar *code-segment*) @@ -114,12 +88,14 @@ (defvar *compiler-warning-count*) (defvar *compiler-style-warning-count*) (defvar *compiler-note-count*) +(defvar *compiler-trace-output*) +(defvar *constraint-number*) (defvar *converting-for-interpreter*) (defvar *count-vop-usages*) (defvar *current-path*) (defvar *current-component*) -(defvar *default-cookie*) -(defvar *default-interface-cookie*) +(defvar *delayed-ir1-transforms*) +(defvar *policy*) (defvar *dynamic-counts-tn*) (defvar *elsewhere*) (defvar *event-info*) @@ -155,20 +131,19 @@ ;;; to be called when a variable is lexically bound (declaim (ftype (function (symbol) (values)) note-lexical-binding)) (defun note-lexical-binding (symbol) - (let ((name (symbol-name symbol))) - ;; This check is intended to protect us from getting silently burned when - ;; we define + ;; This check is intended to protect us from getting silently + ;; burned when we define ;; foo.lisp: - ;; (DEFVAR *FOO*) - ;; (DEFUN FOO (X) (1+ X *FOO*)) + ;; (DEFVAR *FOO* -3) + ;; (DEFUN FOO (X) (+ X *FOO*)) ;; bar.lisp: ;; (DEFUN BAR (X) ;; (LET ((*FOO* X)) ;; (FOO 14))) ;; and then we happen to compile bar.lisp before foo.lisp. - (when (and (char= #\* (aref name 0)) - (char= #\* (aref name (1- (length name))))) + (when (looks-like-name-of-special-var-p symbol) + ;; FIXME: should be COMPILER-STYLE-WARNING? (style-warn "using the lexical binding of the symbol ~S, not the~@ dynamic binding, even though the symbol name follows the usual naming~@ -convention (names like *FOO*) for special variables" symbol))) +convention (names like *FOO*) for special variables" symbol)) (values))