Sorry, I just meant the acronym: what does it stand for? On Jun 16, 2011, at 2:49 , Mike Samuel wrote:
> 2011/6/15 Axel Rauschmayer <[email protected]>: >> Quick feedback: I haven’t seen SVE (substitution value expression?) defined >> anywhere and can’t find a description of using ${{var}} as syntactic sugar >> for "{var:${var}}". > > SVE is defined in > http://wiki.ecmascript.org/doku.php?id=harmony:quasis#substitution_body_syntax > reproduced below: > > SVE > > Production Result > QuasiLiteral :: QuasiTag`LiteralPortion QuasiLiteralTail > SVE(QuasiLiteralTail) > QuasiLiteralTail :: Substitution LiteralPortion QuasiLiteralTail > array-concat(single-element-array(SVE(Substitution)), > SVE(QuasiLiteralTail)) > QuasiLiteralTail :: ` an empty array > Substitution :: $Identifier PrimaryExpression : Identifier > Substitution :: ${SubstitutionModifier Identifier} PrimaryExpression > SubstitutionBody :: Identifier IdentifierPathTail MemberExpression : > str-concat(SV(Identifier), SV(IdentifierPathTail)) > IdentifierPathTail :: .IdentifierName IdentifierPathTail > str-concat(“.”, SV(IdentifierName), SV(IdentifierPathTail)) > IdentifierPathTail :: ε the empty string, ““ > > The SVE of a substitution is an expression that is evaluated in the > scope in which the quasiliteral appears. The SVE of the quasi literal > is the array of the SVE for each substitution. > > E.g. the SVE of quasitag`literalPortion0 $x literalPortion1 $y.z > literalPortion2` is [x, y.z]. > -- Dr. Axel Rauschmayer [email protected] twitter.com/rauschma home: rauschma.de blog: 2ality.com _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
