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; | |
Object.defineProperty(exports, "__esModule", { value: true }); | |
exports.compilePseudoSelector = exports.aliases = exports.pseudos = exports.filters = void 0; | |
/* | |
* Pseudo selectors | |
* | |
* Pseudo selectors are available in three forms: | |
* | |
* 1. Filters are called when the selector is compiled and return a function | |
* that has to return either false, or the results of `next()`. | |
* 2. Pseudos are called on execution. They have to return a boolean. | |
* 3. Subselects work like filters, but have an embedded selector that will be run separately. | |
* | |
* Filters are great if you want to do some pre-processing, or change the call order | |
* of `next()` and your code. | |
* Pseudos should be used to implement simple checks. | |
*/ | |
var boolbase_1 = require("boolbase"); | |
var css_what_1 = require("css-what"); | |
var filters_1 = require("./filters"); | |
Object.defineProperty(exports, "filters", { enumerable: true, get: function () { return filters_1.filters; } }); | |
var pseudos_1 = require("./pseudos"); | |
Object.defineProperty(exports, "pseudos", { enumerable: true, get: function () { return pseudos_1.pseudos; } }); | |
var aliases_1 = require("./aliases"); | |
Object.defineProperty(exports, "aliases", { enumerable: true, get: function () { return aliases_1.aliases; } }); | |
var subselects_1 = require("./subselects"); | |
function compilePseudoSelector(next, selector, options, context, compileToken) { | |
var name = selector.name, data = selector.data; | |
if (Array.isArray(data)) { | |
return subselects_1.subselects[name](next, data, options, context, compileToken); | |
} | |
if (name in aliases_1.aliases) { | |
if (data != null) { | |
throw new Error("Pseudo ".concat(name, " doesn't have any arguments")); | |
} | |
// The alias has to be parsed here, to make sure options are respected. | |
var alias = (0, css_what_1.parse)(aliases_1.aliases[name]); | |
return subselects_1.subselects.is(next, alias, options, context, compileToken); | |
} | |
if (name in filters_1.filters) { | |
return filters_1.filters[name](next, data, options, context); | |
} | |
if (name in pseudos_1.pseudos) { | |
var pseudo_1 = pseudos_1.pseudos[name]; | |
(0, pseudos_1.verifyPseudoArgs)(pseudo_1, name, data); | |
return pseudo_1 === boolbase_1.falseFunc | |
? boolbase_1.falseFunc | |
: next === boolbase_1.trueFunc | |
? function (elem) { return pseudo_1(elem, options, data); } | |
: function (elem) { return pseudo_1(elem, options, data) && next(elem); }; | |
} | |
throw new Error("unmatched pseudo-class :".concat(name)); | |
} | |
exports.compilePseudoSelector = compilePseudoSelector; | |