/
syntax.factor
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/
syntax.factor
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! Copyright (C) 2004, 2010 Slava Pestov.
! See https://factorcode.org/license.txt for BSD license.
USING: accessors arrays byte-arrays byte-vectors classes
classes.algebra.private classes.builtin classes.error
classes.intersection classes.maybe classes.mixin classes.parser
classes.predicate classes.singleton classes.tuple
classes.tuple.parser classes.union combinators compiler.units
definitions effects effects.parser fry generic generic.hook
generic.math generic.parser generic.standard hash-sets
hashtables hashtables.identity init io.pathnames kernel lexer
locals.errors locals.parser macros math memoize namespaces
parser quotations sbufs sequences slots source-files splitting
strings strings.parser strings.parser.private vectors
vocabs.loader vocabs.parser words words.alias words.constant
words.symbol ;
IN: bootstrap.syntax
! These words are defined as a top-level form, instead of with
! defining parsing words, because during stage1 bootstrap, the
! "syntax" vocabulary is copied from the host. When stage1
! bootstrap completes, the host's syntax vocabulary is deleted
! from the target, then this top-level form creates the
! target's "syntax" vocabulary as one of the first things done
! in stage2.
: define-delimiter ( name -- )
"syntax" lookup-word t "delimiter" set-word-prop ;
: define-core-syntax ( name quot -- )
[ [ "syntax" lookup-word ] [ no-word-error ] ?unless ] dip
define-syntax ;
[
{ "]" "}" ";" ">>" } [ define-delimiter ] each
"PRIMITIVE:" [
current-vocab name>>
scan-word scan-effect ensure-primitive
] define-core-syntax
"CS{" [
"Call stack literals are not supported" throw
] define-core-syntax
"IN:" [ scan-token set-current-vocab ] define-core-syntax
"<PRIVATE" [ begin-private ] define-core-syntax
"PRIVATE>" [ end-private ] define-core-syntax
"REUSE:" [ scan-token reload ] define-core-syntax
"USE:" [ scan-token use-vocab ] define-core-syntax
"UNUSE:" [ scan-token unuse-vocab ] define-core-syntax
"USING:" [ ";" [ use-vocab ] each-token ] define-core-syntax
"QUALIFIED:" [ scan-token dup add-qualified ] define-core-syntax
"QUALIFIED-WITH:" [ scan-token scan-token add-qualified ] define-core-syntax
"FROM:" [
scan-token "=>" expect ";" parse-tokens add-words-from
] define-core-syntax
"EXCLUDE:" [
scan-token "=>" expect ";" parse-tokens add-words-excluding
] define-core-syntax
"RENAME:" [
scan-token scan-token "=>" expect scan-token add-renamed-word
] define-core-syntax
"NAN:" [ 16 scan-base <fp-nan> suffix! ] define-core-syntax
"f" [ f suffix! ] define-core-syntax
"CHAR:" [
lexer get parse-raw [ "token" throw-unexpected-eof ] unless* {
{ [ dup length 1 = ] [ first ] }
{ [ "\\" ?head ] [ next-escape >string "" assert= ] }
[ name>char-hook get call( name -- char ) ]
} cond suffix!
] define-core-syntax
"\"" [ parse-string suffix! ] define-core-syntax
"SBUF\"" [
lexer get skip-blank parse-string >sbuf suffix!
] define-core-syntax
"P\"" [
lexer get skip-blank parse-string <pathname> suffix!
] define-core-syntax
"[" [ parse-quotation suffix! ] define-core-syntax
"{" [ \ } [ >array ] parse-literal ] define-core-syntax
"V{" [ \ } [ >vector ] parse-literal ] define-core-syntax
"B{" [ \ } [ >byte-array ] parse-literal ] define-core-syntax
"BV{" [ \ } [ >byte-vector ] parse-literal ] define-core-syntax
"H{" [ \ } [ parse-hashtable ] parse-literal ] define-core-syntax
"IH{" [ \ } [ >identity-hashtable ] parse-literal ] define-core-syntax
"T{" [ parse-tuple-literal suffix! ] define-core-syntax
"W{" [ \ } [ first <wrapper> ] parse-literal ] define-core-syntax
"HS{" [ \ } [ >hash-set ] parse-literal ] define-core-syntax
"POSTPONE:" [ scan-word suffix! ] define-core-syntax
"\\" [ scan-word <wrapper> suffix! ] define-core-syntax
"M\\" [ scan-word scan-word lookup-method <wrapper> suffix! ] define-core-syntax
"auto-use" [ t auto-use? set-global ] define-core-syntax
"delimiter" [ last-word t "delimiter" set-word-prop ] define-core-syntax
"deprecated" [ last-word make-deprecated ] define-core-syntax
"flushable" [ last-word make-flushable ] define-core-syntax
"foldable" [ last-word make-foldable ] define-core-syntax
"inline" [ last-word make-inline ] define-core-syntax
"recursive" [ last-word make-recursive ] define-core-syntax
"SYNTAX:" [
scan-new-word parse-definition define-syntax
] define-core-syntax
"BUILTIN:" [
scan-word-name
current-vocab lookup-word
(parse-tuple-definition)
2drop builtin-class check-instance drop
] define-core-syntax
"SYMBOL:" [
scan-new-word define-symbol
] define-core-syntax
"SYMBOLS:" [
";" [ create-word-in [ reset-generic ] [ define-symbol ] bi ] each-token
] define-core-syntax
"INITIALIZED-SYMBOL:" [
scan-new-word [ define-symbol ] [ scan-object [ initialize ] 2curry ] bi append!
] define-core-syntax
"SINGLETONS:" [
";" [ create-class-in define-singleton-class ] each-token
] define-core-syntax
"DEFER:" [
scan-token current-vocab create-word
[ fake-definition ] [ set-last-word ] [ undefined-def define ] tri
] define-core-syntax
"ALIAS:" [
scan-new-word scan-word define-alias
] define-core-syntax
"CONSTANT:" [
scan-new-word scan-object define-constant
] define-core-syntax
":" [
(:) define-declared
] define-core-syntax
"GENERIC:" [
[ simple-combination ] (GENERIC:)
] define-core-syntax
"GENERIC#:" [
[ scan-number <standard-combination> ] (GENERIC:)
] define-core-syntax
"MATH:" [
[ math-combination ] (GENERIC:)
] define-core-syntax
"HOOK:" [
[ scan-word <hook-combination> ] (GENERIC:)
] define-core-syntax
"M:" [
(M:) define
] define-core-syntax
"UNION:" [
scan-new-class parse-array-def define-union-class
] define-core-syntax
"INTERSECTION:" [
scan-new-class parse-array-def define-intersection-class
] define-core-syntax
"MIXIN:" [
scan-new-class define-mixin-class
] define-core-syntax
"INSTANCE:" [
location [
scan-word scan-word 2dup add-mixin-instance
<mixin-instance>
] dip remember-definition
] define-core-syntax
"PREDICATE:" [
scan-new-class
"<" expect
scan-class
parse-definition define-predicate-class
] define-core-syntax
"SINGLETON:" [
scan-new-class define-singleton-class
] define-core-syntax
"TUPLE:" [
parse-tuple-definition define-tuple-class
] define-core-syntax
"final" [
last-word make-final
] define-core-syntax
"SLOT:" [
scan-token define-protocol-slot
] define-core-syntax
"C:" [
scan-new-word scan-word define-boa-word
] define-core-syntax
"ERROR:" [
parse-tuple-definition
pick save-location
define-error-class
] define-core-syntax
"FORGET:" [
scan-object forget
] define-core-syntax
"(" [
")" parse-effect suffix!
] define-core-syntax
"MAIN:" [
scan-word dup \ [ = [
drop "( main )" <uninterned-word> dup
parse-quotation ( -- ) define-declared
] when dup ( -- ) check-stack-effect
[ current-vocab main<< ]
[ current-source-file get [ main<< ] [ drop ] if* ] bi
] define-core-syntax
"<<" [
[
\ >> parse-until >quotation
] with-nested-compilation-unit call( -- )
] define-core-syntax
"call-next-method" [
current-method get [
literalize suffix!
\ (call-next-method) suffix!
] [
not-in-a-method-error
] if*
] define-core-syntax
"maybe{" [
\ } [ <anonymous-union> <maybe> ] parse-literal
] define-core-syntax
"not{" [
\ } [ <anonymous-union> <anonymous-complement> ] parse-literal
] define-core-syntax
"predicate{" [
\ } [ first2 <anonymous-predicate> ] parse-literal
] define-core-syntax
"intersection{" [
\ } [ <anonymous-intersection> ] parse-literal
] define-core-syntax
"union{" [
\ } [ <anonymous-union> ] parse-literal
] define-core-syntax
"initial:" "syntax" lookup-word define-symbol
"read-only" "syntax" lookup-word define-symbol
"call(" [ \ call-effect parse-call-paren ] define-core-syntax
"execute(" [ \ execute-effect parse-call-paren ] define-core-syntax
"<<<<<<<" [ version-control-merge-conflict ] define-core-syntax
"=======" [ version-control-merge-conflict ] define-core-syntax
">>>>>>>" [ version-control-merge-conflict ] define-core-syntax
"<<<<<<" [ version-control-merge-conflict ] define-core-syntax
"======" [ version-control-merge-conflict ] define-core-syntax
">>>>>>" [ version-control-merge-conflict ] define-core-syntax
"'[" [
t in-fry? [ parse-quotation ] with-variable fry append!
] define-core-syntax
"'{" [
t in-fry? [ \ } parse-until >array ] with-variable fry append!
] define-core-syntax
"'HS{" [
t in-fry? [ \ } parse-until >array ] with-variable fry
[ >hash-set ] compose append!
] define-core-syntax
"'H{" [
t in-fry? [ \ } parse-until >array ] with-variable fry
[ parse-hashtable ] compose append!
] define-core-syntax
"_" [
in-fry? get [ \ _ suffix! ] [ not-in-a-fry ] if
] define-core-syntax
"@" [
in-fry? get [ \ @ suffix! ] [ not-in-a-fry ] if
] define-core-syntax
"MACRO:" [ (:) define-macro ] define-core-syntax
"MEMO:" [ (:) define-memoized ] define-core-syntax
"IDENTITY-MEMO:" [ (:) define-identity-memoized ] define-core-syntax
":>" [
in-lambda? get [ :>-outside-lambda-error ] unless
scan-token parse-def suffix!
] define-core-syntax
"[|" [ parse-lambda append! ] define-core-syntax
"[let" [ parse-let append! ] define-core-syntax
"::" [ (::) define-declared ] define-core-syntax
"M::" [ (M::) define ] define-core-syntax
"MACRO::" [ (::) define-macro ] define-core-syntax
"MEMO::" [ (::) define-memoized ] define-core-syntax
"IDENTITY-MEMO::" [ (::) define-identity-memoized ] define-core-syntax
"STARTUP-HOOK:" [
scan-word
dup \ [ = [ drop parse-quotation ] [ 1quotation ] if
current-vocab name>> [ add-startup-hook ] 2curry append!
] define-core-syntax
"SHUTDOWN-HOOK:" [
scan-word
dup \ [ = [ drop parse-quotation ] [ 1quotation ] if
current-vocab name>> [ add-shutdown-hook ] 2curry append!
] define-core-syntax
] with-compilation-unit