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record labels in compiler experiment

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This commit is contained in:
aarne
2007-04-20 15:36:33 +00:00
parent fc2c3cf057
commit fcbc004aa6
3 changed files with 23 additions and 20 deletions
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6
devel/compiler/Eval.hs
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@@ -52,8 +52,6 @@ eval e = case e of
---- pattern match first
return $ compVal [] $ VPro t' v' ---- []
EPro t v -> do
EPro t v@(Lab _ i) -> do
t' <- eval t
---- project first
return $ VPro t' (VPar 666) ---- lookup label
return $ compVal [] $ VPro t' (VPar i)

10
devel/compiler/Src.cf
View File

@@ -20,10 +20,12 @@ coercions Type 1 ;
terminator Type "" ;
FTyp. Typing ::= Ident ":" Type ;
FTyp. Typing ::= Label ":" Type ;
separator Typing ";" ;
Lab. Label ::= Ident "#" Integer ;
EVar. Exp2 ::= "$" Ident ;
EOpr. Exp2 ::= "&" Ident ;
ECon. Exp2 ::= Ident ;
@@ -33,7 +35,7 @@ ECst. Exp2 ::= "(" Ident "@" [Exp] ")" ;
ERec. Exp2 ::= "{" [Assign] "}" ;
EApp. Exp1 ::= Exp1 Exp2 ;
ESel. Exp1 ::= Exp1 "!" Exp2 ;
EPro. Exp1 ::= Exp1 "." Exp2 ;
EPro. Exp1 ::= Exp1 "." Label ;
ETab. Exp1 ::= "table" Type "{" [Case] "}" ;
ECat. Exp ::= Exp "++" Exp1 ;
EAbs. Exp ::= "\\" Ident "->" Exp ;
@@ -42,7 +44,7 @@ coercions Exp 2 ;
separator Exp "," ;
FExp. Assign ::= Ident "=" Exp ;
FExp. Assign ::= Label "=" Exp ;
separator Assign ";" ;
@@ -57,7 +59,7 @@ PCon. Patt ::= "(" Ident [Patt] ")" ;
terminator Patt "" ;
FPatt. AssPatt ::= Ident "=" Patt ;
FPatt. AssPatt ::= Label "=" Patt ;
separator AssPatt ";" ;

27
devel/compiler/ex.src
View File

@@ -3,10 +3,10 @@ param Gen = Masc | Fem ;
param AG = A Num Gen ;
oper Agr = {g : Gen ; n : Num} ;
oper Agr = {g#0 : Gen ; n#1 : Num} ;
oper CN = {s : Num -> Str ; g : Gen} ;
oper NP = {s : Str ; a : Agr} ;
oper CN = {s#1 : Num -> Str ; g#0 : Gen} ;
oper NP = {s#1 : Str ; a#0 : Agr} ;
oper artDef : Gen -> Str = \g -> table Gen {
(Masc) => "le" ;
@@ -14,29 +14,32 @@ oper artDef : Gen -> Str = \g -> table Gen {
} ! $g ;
lin Voiture : CN = {
s = table Num {
s#1 = table Num {
(Sg) => "voiture" ;
(Pl) => "voitures"
} ;
g = (Fem@)
g#0 = (Fem@)
} ;
lin Bus : CN = {
s = table Num {$x => "bus"} ;
g = (Masc@)
s#1 = table Num {$x => "bus"} ;
g#0 = (Masc@)
} ;
lin Indef : CN -> NP = \cn -> {
s = table Gen {
s#1 = table Gen {
(Masc) => "un" ;
$x => "une"
} ! $cn.g ++ $cn.s ! (Sg@) ;
a = {g = $cn.g ; n = (Sg@)}
} ! $cn.g#0 ++ $cn.s#1 ! (Sg@) ;
a#0 = {g#0 = $cn.g#0 ; n#1 = (Sg@)}
} ;
lin Def : CN -> NP = \cn -> {
s = &artDef $cn.g ++ $cn.s ! (Sg@) ;
a = {g = $cn.g ; n = (Sg@)}
s#1 = &artDef $cn.g#0 ++ $cn.s#1 ! (Sg@) ;
a#0 = {g#0 = $cn.g#0 ; n#1 = (Sg@)}
} ;
lin UneVoiture : NP = Indef Voiture ;
lin LaVoiture : NP = Def Voiture ;