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| author | Silvio <stisa4@gmail.com> | 2017-03-31 22:00:48 +0200 |
|---|---|---|
| committer | Andreas Rumpf <rumpf_a@web.de> | 2017-03-31 22:00:48 +0200 |
| commit | 2946c7a4b9db26d238ea5d6b639e35983b34aaf5 (patch) | |
| tree | 3e88008b18b2bc13699c6d1dde7ac29e16f8c8fd /compiler | |
| parent | 2f9a698e8749f087a2c28a75f87e273aa14bc0fa (diff) | |
| download | Nim-2946c7a4b9db26d238ea5d6b639e35983b34aaf5.tar.gz | |
Implementing `repr` for JS (#5578)
Diffstat (limited to 'compiler')
| -rw-r--r-- | compiler/jsgen.nim | 52 |
1 files changed, 43 insertions, 9 deletions
diff --git a/compiler/jsgen.nim b/compiler/jsgen.nim index d64e4f7dd..0016a8492 100644 --- a/compiler/jsgen.nim +++ b/compiler/jsgen.nim @@ -1626,22 +1626,56 @@ proc genToArray(p: PProc; n: PNode; r: var TCompRes) = localError(x.info, "'toArray' needs an array literal") r.res.add(")") +proc genReprAux(p: PProc, n: PNode, r: var TCompRes, magic: string, typ: Rope = nil) = + useMagic(p, magic) + add(r.res, magic & "(") + var a: TCompRes + + gen(p, n.sons[1], a) + if magic == "reprAny": + # the pointer argument in reprAny is expandend to + # (pointedto, pointer), so we need to fill it + if a.address.isNil: + add(r.res, a.res) + add(r.res, ", null") + else: + add(r.res, "$1, $2" % [a.address, a.res]) + else: + add(r.res, a.res) + + if not typ.isNil: + add(r.res, ", ") + add(r.res, typ) + add(r.res, ")") + proc genRepr(p: PProc, n: PNode, r: var TCompRes) = if p.target == targetPHP: localError(n.info, "'repr' not available for PHP backend") return let t = skipTypes(n.sons[1].typ, abstractVarRange) - case t.kind - of tyInt..tyUInt64: - unaryExpr(p, n, r, "", "(\"\"+ ($1))") + case t.kind: + of tyInt..tyInt64, tyUInt..tyUInt64: + genReprAux(p, n, r, "reprInt") + of tyChar: + genReprAux(p, n, r, "reprChar") + of tyBool: + genReprAux(p, n, r, "reprBool") + of tyFloat..tyFloat128: + genReprAux(p, n, r, "reprFloat") + of tyString: + genReprAux(p, n, r, "reprStr") of tyEnum, tyOrdinal: - gen(p, n.sons[1], r) - useMagic(p, "cstrToNimstr") - r.kind = resExpr - r.res = "cstrToNimstr($1.node.sons[$2].name)" % [genTypeInfo(p, t), r.res] + genReprAux(p, n, r, "reprEnum", genTypeInfo(p, t)) + of tySet: + genReprAux(p, n, r, "reprSet", genTypeInfo(p, t)) + of tyEmpty, tyVoid: + localError(n.info, "'repr' doesn't support 'void' type") + of tyPointer: + genReprAux(p, n, r, "reprPointer") + of tyOpenArray, tyVarargs: + genReprAux(p, n, r, "reprJSONStringify") else: - # XXX: - internalError(n.info, "genRepr: Not implemented") + genReprAux(p, n, r, "reprAny", genTypeInfo(p, t)) proc genOf(p: PProc, n: PNode, r: var TCompRes) = var x: TCompRes |