idris-0.9.6: src/IRTS/CodegenJavaScript.hs
{-# LANGUAGE PatternGuards #-}
{-
BigInteger Javascript code taken from:
https://github.com/peterolson/BigInteger.js
-}
module IRTS.CodegenJavaScript (codegenJavaScript) where
import Idris.AbsSyntax
import IRTS.Bytecode
import IRTS.Lang
import IRTS.Simplified
import IRTS.CodegenCommon
import Core.TT
import Paths_idris
import Util.System
import Control.Arrow
import Data.Char
import Data.List
import System.IO
type NamespaceName = String
idrNamespace :: NamespaceName
idrNamespace = "__IDR__"
codegenJavaScript
:: [(Name, SDecl)]
-> FilePath
-> OutputType
-> IO ()
codegenJavaScript definitions filename outputType =
writeFile filename output
where
def = map (first translateNamespace) definitions
mainLoop :: String
mainLoop = intercalate "\n" [ "\nfunction main() {"
, createTailcall "__IDR__.runMain0()"
, "}\n\nmain();\n"
]
output :: String
output = concat [ idrRuntime
, concatMap (translateModule Nothing) def
, mainLoop
]
idrRuntime :: String
idrRuntime =
createModule Nothing idrNamespace $ concat
[ "__IDR__.Type = function(type) { this.type = type; };"
, "__IDR__.Int = new __IDR__.Type('Int');"
, "__IDR__.Char = new __IDR__.Type('Char');"
, "__IDR__.String = new __IDR__.Type('String');"
, "__IDR__.Integer = new __IDR__.Type('Integer');"
, "__IDR__.Float = new __IDR__.Type('Float');"
, "__IDR__.Forgot = new __IDR__.Type('Forgot');"
, "__IDR__.bigInt=function(){var e=1e7,t=7,n={positive:!1,negative:!0},r=function(e,t){var n=e.value,r=t.value,i=n.length>r.length?n.length:r.length;for(var s=0;s<i;s++)n[s]=n[s]||0,r[s]=r[s]||0;for(var s=i-1;s>=0;s--){if(n[s]!==0||r[s]!==0)break;n.pop(),r.pop()}n.length||(n=[0],r=[0]),e.value=n,t.value=r},i=function(e,s){if(typeof e=='object')return e;e+='';var u=n.positive,a=[];e[0]==='-'&&(u=n.negative,e=e.slice(1));var e=e.split('e');if(e.length>2)throw new Error('Invalid integer');if(e[1]){var f=e[1];f[0]==='+'&&(f=f.slice(1)),f=i(f);if(f.lesser(0))throw new Error('Cannot include negative exponent part for integers');while(f.notEquals(0))e[0]+='0',f=f.prev()}e=e[0],e==='-0'&&(e='0');var l=/^([1-9][0-9]*)$|^0$/.test(e);if(!l)throw new Error('Invalid integer');while(e.length){var c=e.length>t?e.length-t:0;a.push(+e.slice(c)),e=e.slice(0,c)}var h=o(a,u);return s&&r(s,h),h},s=function(e,t){var e=o(e,n.positive),t=o(t,n.positive);if(e.equals(0))throw new Error('Cannot divide by 0');var r=0;do{var i=1,s=o(e.value,n.positive),u=s.times(10);while(u.lesser(t))s=u,i*=10,u=u.times(10);while(s.lesserOrEquals(t))t=t.minus(s),r+=i}while(e.lesserOrEquals(t));return{remainder:t.value,result:r}},o=function(f,l){var c={value:f,sign:l},h={value:f,sign:l,negate:function(e){var t=e||c;return o(t.value,!t.sign)},abs:function(e){var t=e||c;return o(t.value,n.positive)},add:function(t,s){var u,a=c,f;s?(a=i(t))&&(f=i(s)):f=i(t,a),u=a.sign;if(a.sign!==f.sign)return a=o(a.value,n.positive),f=o(f.value,n.positive),u===n.positive?h.subtract(a,f):h.subtract(f,a);r(a,f);var l=a.value,p=f.value,d=[],v=0;for(var m=0;m<l.length||v>0;m++){var g=l[m]+p[m]+v;v=g>e?1:0,g-=v*e,d.push(g)}return o(d,u)},plus:function(e,t){return h.add(e,t)},subtract:function(t,r){var s=c,u;r?(s=i(t))&&(u=i(r)):u=i(t,s);if(s.sign!==u.sign)return h.add(s,h.negate(u));if(s.sign===n.negative)return h.subtract(h.negate(u),h.negate(s));if(h.compare(s,u)===-1)return h.negate(h.subtract(u,s));var a=s.value,f=u.value,l=[],p=0;for(var d=0;d<a.length;d++){a[d]-=p,p=a[d]<f[d]?1:0;var v=p*e+a[d]-f[d];l.push(v)}return o(l,n.positive)},minus:function(e,t){return h.subtract(e,t)},multiply:function(t,n){var r,s=c,u;n?(s=i(t))&&(u=i(n)):u=i(t,s),r=s.sign!==u.sign;var a=s.value,f=u.value,l=[];for(var h=0;h<a.length;h++){l[h]=[];var p=h;while(p--)l[h].push(0)}var d=0;for(var h=0;h<a.length;h++){var v=a[h];for(var p=0;p<f.length||d>0;p++){var m=f[p],g=m?v*m+d:d;d=g>e?Math.floor(g/e):0,g-=d*e,l[h].push(g)}}var y=-1;for(var h=0;h<l.length;h++){var b=l[h].length;b>y&&(y=b)}var w=[],d=0;for(var h=0;h<y||d>0;h++){var E=d;for(var p=0;p<l.length;p++)E+=l[p][h]||0;d=E>e?Math.floor(E/e):0,E-=d*e,w.push(E)}return o(w,r)},times:function(e,t){return h.multiply(e,t)},divmod:function(e,t){var r,u=c,a;t?(u=i(e))&&(a=i(t)):a=i(e,u),r=u.sign!==a.sign;if(o(u.value,u.sign).equals(0))return{quotient:o([0],n.positive),remainder:o([0],n.positive)};if(a.equals(0))throw new Error('Cannot divide by zero');var f=u.value,l=a.value,h=[],p=[];for(var d=f.length-1;d>=0;d--){var e=[f[d]].concat(p),v=s(l,e);h.push(v.result),p=v.remainder}return h.reverse(),{quotient:o(h,r),remainder:o(p,u.sign)}},divide:function(e,t){return h.divmod(e,t).quotient},over:function(e,t){return h.divide(e,t)},mod:function(e,t){return h.divmod(e,t).remainder},pow:function(e,t){var n=c,r;t?(n=i(e))&&(r=i(t)):r=i(e,n);var s=n,f=r;if(f.lesser(0))return u;if(f.equals(0))return a;var l=o(s.value,s.sign);if(f.mod(2).equals(0)){var h=l.pow(f.over(2));return h.times(h)}return l.times(l.pow(f.minus(1)))},next:function(e){var t=e||c;return h.add(t,1)},prev:function(e){var t=e||c;return h.subtract(t,1)},compare:function(e,t){var s=c,o;t?(s=i(e))&&(o=i(t,s)):o=i(e,s),r(s,o);if(s.value.length===1&&o.value.length===1&&s.value[0]===0&&o.value[0]===0)return 0;if(o.sign!==s.sign)return s.sign===n.positive?1:-1;var u=s.sign===n.positive?1:-1,a=s.value,f=o.value;for(var l=a.length-1;l>=0;l--){if(a[l]>f[l])return 1*u;if(f[l]>a[l])return-1*u}return 0},compareAbs:function(e,t){var r=c,s;return t?(r=i(e))&&(s=i(t,r)):s=i(e,r),r.sign=s.sign=n.positive,h.compare(r,s)},equals:function(e,t){return h.compare(e,t)===0},notEquals:function(e,t){return!h.equals(e,t)},lesser:function(e,t){return h.compare(e,t)<0},greater:function(e,t){return h.compare(e,t)>0},greaterOrEquals:function(e,t){return h.compare(e,t)>=0},lesserOrEquals:function(e,t){return h.compare(e,t)<=0},isPositive:function(e){var t=e||c;return t.sign===n.positive},isNegative:function(e){var t=e||c;return t.sign===n.negative},isEven:function(e){var t=e||c;return t.value[0]%2===0},isOdd:function(e){var t=e||c;return t.value[0]%2===1},toString:function(r){var i=r||c,s='',o=i.value.length;while(o--)s+=(e.toString()+i.value[o]).slice(-t);while(s[0]==='0')s=s.slice(1);s.length||(s='0');var u=i.sign===n.positive?'':'-';return u+s},toJSNumber:function(e){return+h.toString(e)},valueOf:function(e){return h.toJSNumber(e)}};return h},u=o([0],n.positive),a=o([1],n.positive),f=o([1],n.negative),l=function(e){return typeof e=='undefined'?u:i(e)};return l.zero=u,l.one=a,l.minusOne=f,l}();typeof module!='undefined'&&(module.exports=__IDR__.bigInt);"
, "__IDR__.Tailcall = function(f) { this.f = f };"
, "__IDR__.Con = function(i,name,vars)"
, "{this.i = i;this.name = name;this.vars = vars;};\n"
, "__IDR__.tailcall = function(f){\n"
++ "var __f = f;\n"
++ "while (__f) {\n"
++ "var f = __f;\n"
++ "__f = null;\n"
++ "var ret = f();\n"
++ "if (ret instanceof __IDR__.Tailcall) {\n"
++ "__f = ret.f;"
++ "\n} else {\n"
++ "return ret;"
++ "\n}"
++ "\n}"
++ "\n};\n"
, "var newline_regex =/(.*)\\n$/;\n"
, "__IDR__.print = function(s){\n"
++ "var m = s.match(newline_regex);\n"
++ "console.log(m ? m[1] : s);"
++ "\n};\n"
]
createModule :: Maybe String -> NamespaceName -> String -> String
createModule toplevel modname body =
concat [header modname, body, footer modname]
where
header :: NamespaceName -> String
header modname =
concatMap (++ "\n")
[ "\nvar " ++ modname ++ ";"
, "(function(" ++ modname ++ "){"
]
footer :: NamespaceName -> String
footer modname =
let m = maybe "" (++ ".") toplevel ++ modname in
"\n})("
++ m
++ " || ("
++ m
++ " = {})"
++ ");\n"
translateModule :: Maybe String -> ([String], SDecl) -> String
translateModule toplevel ([modname], decl) =
let body = translateDeclaration modname decl in
createModule toplevel modname body
translateModule toplevel (n:ns, decl) =
createModule toplevel n $ translateModule (Just n) (ns, decl)
translateIdentifier :: String -> String
translateIdentifier =
concatMap replaceBadChars
where replaceBadChars :: Char -> String
replaceBadChars ' ' = "_"
replaceBadChars '_' = "__"
replaceBadChars '@' = "_at"
replaceBadChars '[' = "_OSB"
replaceBadChars ']' = "_CSB"
replaceBadChars '(' = "_OP"
replaceBadChars ')' = "_CP"
replaceBadChars '{' = "_OB"
replaceBadChars '}' = "_CB"
replaceBadChars '!' = "_bang"
replaceBadChars '#' = "_hash"
replaceBadChars '.' = "_dot"
replaceBadChars ',' = "_comma"
replaceBadChars ':' = "_colon"
replaceBadChars '+' = "_plus"
replaceBadChars '-' = "_minus"
replaceBadChars '*' = "_times"
replaceBadChars '<' = "_lt"
replaceBadChars '>' = "_gt"
replaceBadChars '=' = "_eq"
replaceBadChars '|' = "_pipe"
replaceBadChars '&' = "_amp"
replaceBadChars '/' = "_SL"
replaceBadChars '\\' = "_BSL"
replaceBadChars '%' = "_per"
replaceBadChars '?' = "_que"
replaceBadChars '~' = "_til"
replaceBadChars '\'' = "_apo"
replaceBadChars c
| isDigit c = "_" ++ [c] ++ "_"
| otherwise = [c]
translateNamespace :: Name -> [String]
translateNamespace (UN _) = [idrNamespace]
translateNamespace (NS _ ns) = idrNamespace : map translateIdentifier ns
translateNamespace (MN _ _) = [idrNamespace]
translateName :: Name -> String
translateName (UN name) = translateIdentifier name
translateName (NS name _) = translateName name
translateName (MN i name) = translateIdentifier name ++ show i
translateQualifiedName :: Name -> String
translateQualifiedName name =
intercalate "." (translateNamespace name) ++ "." ++ translateName name
translateConstant :: Const -> String
translateConstant (I i) = show i
translateConstant (BI i) = "__IDR__.bigInt('" ++ show i ++ "')"
translateConstant (Fl f) = show f
translateConstant (Ch c) = show c
translateConstant (Str s) = show s
translateConstant IType = "__IDR__.Int"
translateConstant ChType = "__IDR__.Char"
translateConstant StrType = "__IDR__.String"
translateConstant BIType = "__IDR__.Integer"
translateConstant FlType = "__IDR__.Float"
translateConstant Forgot = "__IDR__.Forgot"
translateConstant c =
"(function(){throw 'Unimplemented Const: " ++ show c ++ "';})()"
translateParameterlist =
map translateParameter
where translateParameter (MN i name) = name ++ show i
translateParameter (UN name) = name
translateDeclaration :: NamespaceName -> SDecl -> String
translateDeclaration modname (SFun name params stackSize body) =
modname
++ "."
++ translateName name
++ " = function("
++ intercalate "," p
++ "){\n"
++ concatMap assignVar (zip [0..] p)
++ concatMap allocVar [numP..(numP+stackSize-1)]
++ "return "
++ translateExpression modname body
++ ";\n};\n"
where
numP :: Int
numP = length params
allocVar :: Int -> String
allocVar n = "var __var_" ++ show n ++ ";\n"
assignVar :: (Int, String) -> String
assignVar (n, s) = "var __var_" ++ show n ++ " = " ++ s ++ ";\n"
p :: [String]
p = translateParameterlist params
translateVariableName :: LVar -> String
translateVariableName (Loc i) =
"__var_" ++ show i
translateExpression :: NamespaceName -> SExp -> String
translateExpression modname (SLet name value body) =
"(function("
++ translateVariableName name
++ "){\nreturn "
++ translateExpression modname body
++ ";\n})("
++ translateExpression modname value
++ ")"
translateExpression _ (SConst cst) =
translateConstant cst
translateExpression _ (SV var) =
translateVariableName var
translateExpression modname (SApp False name vars) =
createTailcall $ translateFunctionCall name vars
translateExpression modname (SApp True name vars) =
"new __IDR__.Tailcall("
++ "function(){\n"
++ "return " ++ translateFunctionCall name vars
++ ";\n});"
translateExpression _ (SOp op vars)
| LPlus <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "+" lhs rhs
| LMinus <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "-" lhs rhs
| LTimes <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "*" lhs rhs
| LDiv <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "/" lhs rhs
| LMod <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "%" lhs rhs
| LEq <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "==" lhs rhs
| LLt <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "<" lhs rhs
| LLe <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "<=" lhs rhs
| LGt <- op
, (lhs:rhs:_) <- vars = translateBinaryOp ">" lhs rhs
| LGe <- op
, (lhs:rhs:_) <- vars = translateBinaryOp ">=" lhs rhs
| LAnd <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "&" lhs rhs
| LOr <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "|" lhs rhs
| LXOr <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "^" lhs rhs
| LSHL <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "<<" rhs lhs
| LSHR <- op
, (lhs:rhs:_) <- vars = translateBinaryOp ">>" rhs lhs
| LCompl <- op
, (arg:_) <- vars = '~' : translateVariableName arg
| LBPlus <- op
, (lhs:rhs:_) <- vars = translateBinaryOp ".add(" lhs rhs ++ ")"
| LBMinus <- op
, (lhs:rhs:_) <- vars = translateBinaryOp ".minus(" lhs rhs ++ ")"
| LBTimes <- op
, (lhs:rhs:_) <- vars = translateBinaryOp ".times(" lhs rhs ++ ")"
| LBDiv <- op
, (lhs:rhs:_) <- vars = translateBinaryOp ".divide(" lhs rhs ++ ")"
| LBMod <- op
, (lhs:rhs:_) <- vars = translateBinaryOp ".mod(" lhs rhs ++ ")"
| LBEq <- op
, (lhs:rhs:_) <- vars = translateBinaryOp ".equals(" lhs rhs ++ ")"
| LBLt <- op
, (lhs:rhs:_) <- vars = translateBinaryOp ".lesser(" lhs rhs ++ ")"
| LBLe <- op
, (lhs:rhs:_) <- vars = translateBinaryOp ".lesserOrEquals(" lhs rhs ++ ")"
| LBGt <- op
, (lhs:rhs:_) <- vars = translateBinaryOp ".greater(" lhs rhs ++ ")"
| LBGe <- op
, (lhs:rhs:_) <- vars = translateBinaryOp ".greaterOrEquals(" lhs rhs ++ ")"
| LFPlus <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "+" lhs rhs
| LFMinus <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "-" lhs rhs
| LFTimes <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "*" lhs rhs
| LFDiv <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "/" lhs rhs
| LFEq <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "==" lhs rhs
| LFLt <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "<" lhs rhs
| LFLe <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "<=" lhs rhs
| LFGt <- op
, (lhs:rhs:_) <- vars = translateBinaryOp ">" lhs rhs
| LFGe <- op
, (lhs:rhs:_) <- vars = translateBinaryOp ">=" lhs rhs
| LStrConcat <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "+" lhs rhs
| LStrEq <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "==" lhs rhs
| LStrLt <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "<" lhs rhs
| LStrLen <- op
, (arg:_) <- vars = translateVariableName arg ++ ".length"
| LStrInt <- op
, (arg:_) <- vars = "parseInt(" ++ translateVariableName arg ++ ")"
| LIntStr <- op
, (arg:_) <- vars = "String(" ++ translateVariableName arg ++ ")"
| LIntBig <- op
, (arg:_) <- vars = "__IDR__.bigint(" ++ translateVariableName arg ++ ")"
| LBigInt <- op
, (arg:_) <- vars = translateVariableName arg ++ ".valueOf()"
| LBigStr <- op
, (arg:_) <- vars = translateVariableName arg ++ ".toString()"
| LStrBig <- op
, (arg:_) <- vars = "__IDR__.bigint(" ++ translateVariableName arg ++ ")"
| LFloatStr <- op
, (arg:_) <- vars = "String(" ++ translateVariableName arg ++ ")"
| LStrFloat <- op
, (arg:_) <- vars = "parseFloat(" ++ translateVariableName arg ++ ")"
| LIntFloat <- op
, (arg:_) <- vars = translateVariableName arg
| LFloatInt <- op
, (arg:_) <- vars = translateVariableName arg
| LChInt <- op
, (arg:_) <- vars = translateVariableName arg ++ ".charCodeAt(0)"
| LIntCh <- op
, (arg:_) <- vars =
"String.fromCharCode(" ++ translateVariableName arg ++ ")"
| LFExp <- op
, (arg:_) <- vars = "Math.exp(" ++ translateVariableName arg ++ ")"
| LFLog <- op
, (arg:_) <- vars = "Math.log(" ++ translateVariableName arg ++ ")"
| LFSin <- op
, (arg:_) <- vars = "Math.sin(" ++ translateVariableName arg ++ ")"
| LFCos <- op
, (arg:_) <- vars = "Math.cos(" ++ translateVariableName arg ++ ")"
| LFTan <- op
, (arg:_) <- vars = "Math.tan(" ++ translateVariableName arg ++ ")"
| LFASin <- op
, (arg:_) <- vars = "Math.asin(" ++ translateVariableName arg ++ ")"
| LFACos <- op
, (arg:_) <- vars = "Math.acos(" ++ translateVariableName arg ++ ")"
| LFATan <- op
, (arg:_) <- vars = "Math.atan(" ++ translateVariableName arg ++ ")"
| LFSqrt <- op
, (arg:_) <- vars = "Math.sqrt(" ++ translateVariableName arg ++ ")"
| LFFloor <- op
, (arg:_) <- vars = "Math.floor(" ++ translateVariableName arg ++ ")"
| LFCeil <- op
, (arg:_) <- vars = "Math.ceil(" ++ translateVariableName arg ++ ")"
| LStrCons <- op
, (lhs:rhs:_) <- vars = translateBinaryOp "+" lhs rhs
| LStrHead <- op
, (arg:_) <- vars = translateVariableName arg ++ "[0]"
| LStrRev <- op
, (arg:_) <- vars = let v = translateVariableName arg in
v ++ "split('').reverse().join('')"
| LStrIndex <- op
, (lhs:rhs:_) <- vars = let l = translateVariableName lhs
r = translateVariableName rhs in
l ++ "[" ++ r ++ "]"
| LStrTail <- op
, (arg:_) <- vars = let v = translateVariableName arg in
v ++ ".substr(1," ++ v ++ ".length-1)"
where
translateBinaryOp :: String -> LVar -> LVar -> String
translateBinaryOp f lhs rhs =
translateVariableName lhs
++ f
++ translateVariableName rhs
translateExpression _ (SError msg) =
"(function(){throw \'" ++ msg ++ "\';})();"
translateExpression _ (SForeign _ _ "putStr" [(FString, var)]) =
"__IDR__.print(" ++ translateVariableName var ++ ");"
translateExpression _ (SForeign _ _ fun args) =
fun
++ "("
++ intercalate "," (map (translateVariableName . snd) args)
++ ");"
translateExpression modname (SChkCase var cases) =
"(function(e){\n"
++ intercalate " else " (map (translateCase modname "e") cases)
++ "\n})("
++ translateVariableName var
++ ")"
translateExpression modname (SCase var cases) =
"(function(e){\n"
++ intercalate " else " (map (translateCase modname "e") cases)
++ "\n})("
++ translateVariableName var
++ ")"
translateExpression _ (SCon i name vars) =
concat [ "new __IDR__.Con("
, show i
, ","
, '\'' : translateQualifiedName name ++ "\',["
, intercalate "," $ map translateVariableName vars
, "])"
]
translateExpression modname (SUpdate var e) =
translateVariableName var ++ " = " ++ translateExpression modname e
translateExpression modname (SProj var i) =
translateVariableName var ++ ".vars[" ++ show i ++"]"
translateExpression _ SNothing = "null"
translateExpression _ e =
"(function(){throw 'Not yet implemented: "
++ filter (/= '\'') (show e)
++ "';})()"
translateCase :: String -> String -> SAlt -> String
translateCase modname _ (SDefaultCase e) =
createIfBlock "true" (translateExpression modname e)
translateCase modname var (SConstCase ty e)
| ChType <- ty = matchHelper "Char"
| StrType <- ty = matchHelper "String"
| IType <- ty = matchHelper "Int"
| BIType <- ty = matchHelper "Integer"
| FlType <- ty = matchHelper "Float"
| Forgot <- ty = matchHelper "Forgot"
where
matchHelper tyName = translateTypeMatch modname var tyName e
translateCase modname var (SConstCase cst@(BI _) e) =
let cond = var ++ ".equals(" ++ translateConstant cst ++ ")" in
createIfBlock cond (translateExpression modname e)
translateCase modname var (SConstCase cst e) =
let cond = var ++ " == " ++ translateConstant cst in
createIfBlock cond (translateExpression modname e)
translateCase modname var (SConCase a i name vars e) =
let isCon = var ++ " instanceof __IDR__.Con"
isI = show i ++ " == " ++ var ++ ".i"
params = intercalate "," $ map (("__var_" ++) . show) [a..(a+length vars)]
args = ".apply(this," ++ var ++ ".vars)"
f b =
"(function("
++ params
++ "){\nreturn " ++ b ++ "\n})" ++ args
cond = intercalate " && " [isCon, isI] in
createIfBlock cond $ f (translateExpression modname e)
translateTypeMatch :: String -> String -> String -> SExp -> String
translateTypeMatch modname var ty exp =
let e = translateExpression modname exp in
createIfBlock (var
++ " instanceof __IDR__.Type && "
++ var ++ ".type == '"++ ty ++"'") e
createIfBlock cond e =
"if (" ++ cond ++") {\n"
++ "return " ++ e
++ ";\n}"
createTailcall call =
"__IDR__.tailcall(function(){return " ++ call ++ "})"
translateFunctionCall name vars =
concat (intersperse "." $ translateNamespace name)
++ "."
++ translateName name
++ "("
++ intercalate "," (map translateVariableName vars)
++ ")"