diff options
| author | aarne <aarne@cs.chalmers.se> | 2008-05-21 09:26:44 +0000 |
|---|---|---|
| committer | aarne <aarne@cs.chalmers.se> | 2008-05-21 09:26:44 +0000 |
| commit | 055c0d0d5a5bb0dc75904fe53df7f2e4f5732a8f (patch) | |
| tree | 0e63fb68c69c8f6ad0f78893c63420f0a3600e1c /src-3.0/GF/JavaScript/ParJS.y | |
| parent | 915a1de71783ab8446b1af9e72c7ba7dfbc12d3f (diff) | |
GF/src is now for 2.9, and the new sources are in src-3.0 - keep it this way until the release of GF 3
Diffstat (limited to 'src-3.0/GF/JavaScript/ParJS.y')
| -rw-r--r-- | src-3.0/GF/JavaScript/ParJS.y | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/src-3.0/GF/JavaScript/ParJS.y b/src-3.0/GF/JavaScript/ParJS.y new file mode 100644 index 000000000..bf0614757 --- /dev/null +++ b/src-3.0/GF/JavaScript/ParJS.y @@ -0,0 +1,225 @@ +-- This Happy file was machine-generated by the BNF converter +{ +{-# OPTIONS -fno-warn-incomplete-patterns -fno-warn-overlapping-patterns #-} +module GF.JavaScript.ParJS where +import GF.JavaScript.AbsJS +import GF.JavaScript.LexJS +import GF.Data.ErrM +} + +%name pProgram Program + +-- no lexer declaration +%monad { Err } { thenM } { returnM } +%tokentype { Token } + +%token + '(' { PT _ (TS "(") } + ')' { PT _ (TS ")") } + '{' { PT _ (TS "{") } + '}' { PT _ (TS "}") } + ',' { PT _ (TS ",") } + ';' { PT _ (TS ";") } + '=' { PT _ (TS "=") } + '.' { PT _ (TS ".") } + '[' { PT _ (TS "[") } + ']' { PT _ (TS "]") } + ':' { PT _ (TS ":") } + 'false' { PT _ (TS "false") } + 'function' { PT _ (TS "function") } + 'new' { PT _ (TS "new") } + 'null' { PT _ (TS "null") } + 'return' { PT _ (TS "return") } + 'this' { PT _ (TS "this") } + 'true' { PT _ (TS "true") } + 'var' { PT _ (TS "var") } + +L_ident { PT _ (TV $$) } +L_integ { PT _ (TI $$) } +L_doubl { PT _ (TD $$) } +L_quoted { PT _ (TL $$) } +L_err { _ } + + +%% + +Ident :: { Ident } : L_ident { Ident $1 } +Integer :: { Integer } : L_integ { (read $1) :: Integer } +Double :: { Double } : L_doubl { (read $1) :: Double } +String :: { String } : L_quoted { $1 } + +Program :: { Program } +Program : ListElement { Program (reverse $1) } + + +Element :: { Element } +Element : 'function' Ident '(' ListIdent ')' '{' ListStmt '}' { FunDef $2 $4 (reverse $7) } + | Stmt { ElStmt $1 } + + +ListElement :: { [Element] } +ListElement : {- empty -} { [] } + | ListElement Element { flip (:) $1 $2 } + + +ListIdent :: { [Ident] } +ListIdent : {- empty -} { [] } + | Ident { (:[]) $1 } + | Ident ',' ListIdent { (:) $1 $3 } + + +Stmt :: { Stmt } +Stmt : '{' ListStmt '}' { SCompound (reverse $2) } + | 'return' ';' { SReturnVoid } + | 'return' Expr ';' { SReturn $2 } + | DeclOrExpr ';' { SDeclOrExpr $1 } + + +ListStmt :: { [Stmt] } +ListStmt : {- empty -} { [] } + | ListStmt Stmt { flip (:) $1 $2 } + + +DeclOrExpr :: { DeclOrExpr } +DeclOrExpr : 'var' ListDeclVar { Decl $2 } + | Expr1 { DExpr $1 } + + +DeclVar :: { DeclVar } +DeclVar : Ident { DVar $1 } + | Ident '=' Expr { DInit $1 $3 } + + +ListDeclVar :: { [DeclVar] } +ListDeclVar : {- empty -} { [] } + | DeclVar { (:[]) $1 } + | DeclVar ',' ListDeclVar { (:) $1 $3 } + + +Expr13 :: { Expr } +Expr13 : Expr14 '=' Expr13 { EAssign $1 $3 } + | Expr14 { $1 } + + +Expr14 :: { Expr } +Expr14 : 'new' Ident '(' ListExpr ')' { ENew $2 $4 } + | Expr15 { $1 } + + +Expr15 :: { Expr } +Expr15 : Expr15 '.' Ident { EMember $1 $3 } + | Expr15 '[' Expr ']' { EIndex $1 $3 } + | Expr15 '(' ListExpr ')' { ECall $1 $3 } + | Expr16 { $1 } + + +Expr16 :: { Expr } +Expr16 : Ident { EVar $1 } + | Integer { EInt $1 } + | Double { EDbl $1 } + | String { EStr $1 } + | 'true' { ETrue } + | 'false' { EFalse } + | 'null' { ENull } + | 'this' { EThis } + | 'function' '(' ListIdent ')' '{' ListStmt '}' { EFun $3 (reverse $6) } + | '[' ListExpr ']' { EArray $2 } + | '{' ListProperty '}' { EObj $2 } + | '(' Expr ',' ListExpr ')' { eseq1_ $2 $4 } + | '(' Expr ')' { $2 } + + +ListExpr :: { [Expr] } +ListExpr : {- empty -} { [] } + | Expr { (:[]) $1 } + | Expr ',' ListExpr { (:) $1 $3 } + + +Expr :: { Expr } +Expr : Expr1 { $1 } + + +Expr1 :: { Expr } +Expr1 : Expr2 { $1 } + + +Expr2 :: { Expr } +Expr2 : Expr3 { $1 } + + +Expr3 :: { Expr } +Expr3 : Expr4 { $1 } + + +Expr4 :: { Expr } +Expr4 : Expr5 { $1 } + + +Expr5 :: { Expr } +Expr5 : Expr6 { $1 } + + +Expr6 :: { Expr } +Expr6 : Expr7 { $1 } + + +Expr7 :: { Expr } +Expr7 : Expr8 { $1 } + + +Expr8 :: { Expr } +Expr8 : Expr9 { $1 } + + +Expr9 :: { Expr } +Expr9 : Expr10 { $1 } + + +Expr10 :: { Expr } +Expr10 : Expr11 { $1 } + + +Expr11 :: { Expr } +Expr11 : Expr12 { $1 } + + +Expr12 :: { Expr } +Expr12 : Expr13 { $1 } + + +Property :: { Property } +Property : PropertyName ':' Expr { Prop $1 $3 } + + +ListProperty :: { [Property] } +ListProperty : {- empty -} { [] } + | Property { (:[]) $1 } + | Property ',' ListProperty { (:) $1 $3 } + + +PropertyName :: { PropertyName } +PropertyName : Ident { IdentPropName $1 } + | String { StringPropName $1 } + + + +{ + +returnM :: a -> Err a +returnM = return + +thenM :: Err a -> (a -> Err b) -> Err b +thenM = (>>=) + +happyError :: [Token] -> Err a +happyError ts = + Bad $ "syntax error at " ++ tokenPos ts ++ + case ts of + [] -> [] + [Err _] -> " due to lexer error" + _ -> " before " ++ unwords (map prToken (take 4 ts)) + +myLexer = tokens +eseq1_ x_ xs_ = ESeq (x_ : xs_) +} + |
