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-rw-r--r--source/lux.lux276
1 files changed, 105 insertions, 171 deletions
diff --git a/source/lux.lux b/source/lux.lux
index 22d49315b..824113b92 100644
--- a/source/lux.lux
+++ b/source/lux.lux
@@ -1462,50 +1462,6 @@
_
(return ident)))
-(defmacro #export (| tokens)
- (do Lux/Monad
- [pairs (map% Lux/Monad
- (_lux_: (-> AST ($' Lux AST))
- (lambda' [token]
- (_lux_case token
- (#Meta [_ (#TagS ident)])
- (do Lux/Monad
- [ident (normalize ident)]
- (wrap (`' [(~ (text$ (ident->text ident))) (;,)])))
-
- (#Meta [_ (#FormS (#Cons [(#Meta [_ (#TagS ident)]) values]))])
- (do Lux/Monad
- [ident (normalize ident)
- #let [case-body (_lux_: AST
- (_lux_case values
- #Nil (`' Unit)
- (#Cons value #Nil) value
- _ (`' (, (~@ values)))))]]
- (wrap (`' [(~ (text$ (ident->text ident))) (~ case-body)])))
-
- _
- (fail "Wrong syntax for |"))))
- tokens)]
- (wrap (list (`' (#;VariantT (~ (untemplate-list pairs))))))))
-
-(defmacro #export (& tokens)
- (if (not (multiple? 2 (length tokens)))
- (fail "& expects an even number of arguments.")
- (do Lux/Monad
- [pairs (map% Lux/Monad
- (_lux_: (-> (, AST AST) ($' Lux AST))
- (lambda' [pair]
- (_lux_case pair
- [(#Meta [_ (#TagS ident)]) value]
- (do Lux/Monad
- [ident (normalize ident)]
- (wrap (`' [(~ (text$ (ident->text ident))) (~ value)])))
-
- _
- (fail "Wrong syntax for &"))))
- (as-pairs tokens))]
- (wrap (list (`' (#;RecordT (~ (untemplate-list pairs)))))))))
-
(def''' (interpose sep xs)
(All [a]
(-> a ($' List a) ($' List a)))
@@ -1626,6 +1582,59 @@
#Nil true
_ false))
+(do-template [<name> <type> <value>]
+ [(def''' (<name> xy)
+ (All [a b] (-> (, a b) <type>))
+ (let' [[x y] xy] <value>))]
+
+ [first a x]
+ [second b y])
+
+(def''' (unfold-type-def type)
+ (-> AST ($' Lux (, AST ($' Maybe ($' List AST)))))
+ (_lux_case type
+ (#Meta _ (#FormS (#Cons (#Meta _ (#SymbolS "" "|")) cases)))
+ (do Lux/Monad
+ [members (map% Lux/Monad
+ (: (-> AST ($' Lux (, Text AST)))
+ (lambda' [case]
+ (_lux_case case
+ (#Meta _ (#TagS "" member-name))
+ (return [member-name (`' Unit)])
+
+ (#Meta _ (#FormS (#Cons (#Meta _ (#TagS "" member-name)) (#Cons member-type #Nil))))
+ (return [member-name member-type])
+
+ _
+ (fail "Wrong syntax for variant case."))))
+ cases)]
+ (return [(`' (#VariantT (~ (untemplate-list (map second members)))))
+ (#Some (|> members
+ (map first)
+ (map (: (-> Text AST)
+ (lambda' [name] (tag$ ["" name]))))))]))
+
+ (#Meta _ (#FormS (#Cons (#Meta _ (#SymbolS "" "&")) pairs)))
+ (do Lux/Monad
+ [members (map% Lux/Monad
+ (: (-> (, AST AST) ($' Lux (, Text AST)))
+ (lambda' [pair]
+ (_lux_case pair
+ [(#Meta _ (#TagS "" member-name)) member-type]
+ (return [member-name member-type])
+
+ _
+ (fail "Wrong syntax for variant case."))))
+ (as-pairs pairs))]
+ (return [(`' (#RecordT (~ (untemplate-list (map second members)))))
+ (#Some (|> members
+ (map first)
+ (map (: (-> Text AST)
+ (lambda' [name] (tag$ ["" name]))))))]))
+
+ _
+ (return [type #None])))
+
(defmacro #export (deftype tokens)
(let' [[export? tokens'] (: (, Bool (List AST))
(_lux_case tokens
@@ -1653,73 +1662,46 @@
#None))]
(_lux_case parts
(#Some name args type)
- (let' [with-export (: (List AST)
- (if export?
- (list (`' (_lux_export (~ (symbol$ ["" name])))))
- #Nil))
- type' (: (Maybe AST)
- (if rec?
- (if (empty? args)
- (let' [g!param (symbol$ ["" ""])
- prime-name (symbol$ ["" (text:++ name "'")])
- type+ (replace-syntax (list [name (`' ((~ prime-name) (~ g!param)))]) type)]
- (#Some (`' ((;All (~ prime-name) [(~ g!param)] (~ type+))
- ;Void))))
- #None)
- (_lux_case args
- #Nil
- (#Some type)
-
- _
- (#Some (`' (;All (~ (symbol$ ["" name])) [(~@ args)] (~ type)))))))]
- (_lux_case type'
- (#Some type'')
- (return (list& (`' (_lux_def (~ (symbol$ ["" name])) (;type (~ type''))))
- with-export))
-
- #None
- (fail "Wrong syntax for deftype")))
+ (do Lux/Monad
+ [type+tags?? (unfold-type-def type)]
+ (let' [[type tags??] type+tags??
+ with-export (: (List AST)
+ (if export?
+ (list (`' (_lux_export (~ (symbol$ ["" name])))))
+ #Nil))
+ with-tags (: (List AST)
+ (_lux_case tags??
+ (#Some tags)
+ (list (`' (_lux_declare-tags [(~@ tags)])))
+
+ _
+ (list)))
+ type' (: (Maybe AST)
+ (if rec?
+ (if (empty? args)
+ (let' [g!param (symbol$ ["" ""])
+ prime-name (symbol$ ["" (text:++ name "'")])
+ type+ (replace-syntax (list [name (`' ((~ prime-name) (~ g!param)))]) type)]
+ (#Some (`' ((;All (~ prime-name) [(~ g!param)] (~ type+))
+ ;Void))))
+ #None)
+ (_lux_case args
+ #Nil
+ (#Some type)
+
+ _
+ (#Some (`' (;All (~ (symbol$ ["" name])) [(~@ args)] (~ type)))))))]
+ (_lux_case type'
+ (#Some type'')
+ (return (list& (`' (_lux_def (~ (symbol$ ["" name])) (;type (~ type''))))
+ (list:++ with-export with-tags)))
+
+ #None
+ (fail "Wrong syntax for deftype"))))
#None
(fail "Wrong syntax for deftype"))
))
-## (defmacro #export (deftype tokens)
-## (let' [[export? tokens'] (: (, Bool (List AST))
-## (_lux_case (:! (List AST) tokens)
-## (#Cons [(#Meta [_ (#TagS ["" "export"])]) tokens'])
-## [true (:! (List AST) tokens')]
-
-## _
-## [false (:! (List AST) tokens)]))
-## parts (: (Maybe (, AST (List AST) AST))
-## (_lux_case tokens'
-## (#Cons [(#Meta [_ (#SymbolS name)]) (#Cons [type #Nil])])
-## (#Some [(symbol$ name) #Nil type])
-
-## (#Cons [(#Meta [_ (#FormS (#Cons [(#Meta [_ (#SymbolS name)]) args]))]) (#Cons [type #Nil])])
-## (#Some (symbol$ name) args type)
-
-## _
-## #None))]
-## (_lux_case parts
-## (#Some name args type])
-## (let' [with-export (: (List AST)
-## (if export?
-## (list (`' (_lux_export (~ name))))
-## #Nil))
-## type' (: AST
-## (_lux_case args
-## #Nil
-## type
-
-## _
-## (`' (;All (~ name) [(~@ args)] (~ type)))))]
-## (return (list& (`' (_lux_def (~ name) (;type (~ type'))))
-## with-export)))
-
-## #None
-## (fail "Wrong syntax for deftype"))
-## ))
(defmacro #export (exec tokens)
(_lux_case (reverse tokens)
@@ -1920,8 +1902,8 @@
(\ (list (#Meta _ (#TupleS (#Cons head tail))) body))
(#Some ["" ""] head tail body)
- (\ (list (#Meta _ (#SymbolS ident)) (#Meta _ (#TupleS (#Cons head tail))) body))
- (#Some ident head tail body)
+ (\ (list (#Meta _ (#SymbolS [_ name])) (#Meta _ (#TupleS (#Cons head tail))) body))
+ (#Some ["" name] head tail body)
_
#None))
@@ -2260,35 +2242,19 @@
(defmacro #export (struct tokens)
(do Lux/Monad
- [tokens' (map% Lux/Monad macro-expand tokens)
- struct-type expected-type]
- (case (resolve-struct-type struct-type)
- (#Some (#RecordT slots))
- (do Lux/Monad
- [#let [translations (map (: (-> (, Text Type) (, Text Ident))
- (lambda [[sname _]]
- (let [[module name] (split-slot sname)]
- [name [module name]])))
- slots)]
- members (map% Lux/Monad
- (: (-> AST (Lux (, AST AST)))
- (lambda [token]
- (case token
- (\ (#Meta _ (#FormS (list (#Meta _ (#SymbolS _ "_lux_def")) (#Meta _ (#SymbolS ["" name])) value))))
- (case (get name translations)
- (#Some tag-name)
- (wrap (: (, AST AST) [(tag$ tag-name) value]))
-
- _
- (fail "Structures require defined members"))
+ [tokens' (map% Lux/Monad macro-expand tokens)]
+ (do Lux/Monad
+ [members (map% Lux/Monad
+ (: (-> AST (Lux (, AST AST)))
+ (lambda [token]
+ (case token
+ (\ (#Meta _ (#FormS (list (#Meta _ (#SymbolS _ "_lux_def")) (#Meta _ (#SymbolS tag-name)) value))))
+ (wrap (: (, AST AST) [(tag$ tag-name) value]))
- _
- (fail "Structures members must be unqualified."))))
- (list:join tokens'))]
- (wrap (list (record$ members))))
-
- _
- (fail "struct can only use records."))))
+ _
+ (fail "Structures members must be unqualified."))))
+ (list:join tokens'))]
+ (wrap (list (record$ members))))))
(defmacro #export (defstruct tokens)
(let [[export? tokens'] (: (, Bool (List AST))
@@ -2721,24 +2687,6 @@
(#ValueD [type _]) (#Some type)
(#MacroD m) (#Some Macro)
(#AliasD name') (find-in-defs name' state))))))
-## (def (find-in-defs name state)
-## (-> Ident Compiler (Maybe Type))
-## (exec (_jvm_invokevirtual java.io.PrintStream print [java.lang.Object]
-## (_jvm_getstatic java.lang.System out) [($ text:++ "find-in-defs #1: " (ident->text name) "\n")])
-## (let [[v-prefix v-name] name
-## {#source source #modules modules
-## #envs envs #types types #host host
-## #seed seed #eval? eval? #expected expected} state]
-## (do Maybe/Monad
-## [module (get v-prefix modules)
-## #let [{#defs defs #module-aliases _ #imports _ #tags tags} module]
-## def (get v-name defs)
-## #let [[_ def-data] def]]
-## (case def-data
-## #TypeD (wrap Type)
-## (#ValueD type) (wrap type)
-## (#MacroD m) (wrap Macro)
-## (#AliasD name') (find-in-defs name' state))))))
(def (find-var-type ident)
(-> Ident (Lux Type))
@@ -3065,14 +3013,6 @@
_
(fail "Wrong syntax for \\template")))
-(do-template [<name> <type> <value>]
- [(def (<name> [x y])
- (All [a b] (-> (, a b) <type>))
- <value>)]
-
- [first a x]
- [second b y])
-
(def (interleave xs ys)
(All [a] (-> (List a) (List a) (List a)))
(case xs
@@ -3105,16 +3045,10 @@
(` (#TupleT (~ (untemplate-list (map type->syntax parts)))))
(#VariantT cases)
- (` (#VariantT (~ (untemplate-list (map (: (-> (, Text Type) AST)
- (lambda [[label type]]
- (tuple$ (list (text$ label) (type->syntax type)))))
- cases)))))
+ (` (#VariantT (~ (untemplate-list (map type->syntax cases)))))
(#RecordT fields)
- (` (#RecordT (~ (untemplate-list (map (: (-> (, Text Type) AST)
- (lambda [[label type]]
- (tuple$ (list (text$ label) (type->syntax type)))))
- fields)))))
+ (` (#RecordT (~ (untemplate-list (map type->syntax fields)))))
(#LambdaT in out)
(` (#LambdaT (~ (type->syntax in)) (~ (type->syntax out))))
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-29 10:39:37 +0000