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93 lines
3.4 KiB
93 lines
3.4 KiB
"use strict"; |
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Object.defineProperty(exports, "__esModule", { value: true }); |
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exports.verifyPseudoArgs = exports.pseudos = void 0; |
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// While filters are precompiled, pseudos get called when they are needed |
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exports.pseudos = { |
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empty: function (elem, _a) { |
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var adapter = _a.adapter; |
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return !adapter.getChildren(elem).some(function (elem) { |
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// FIXME: `getText` call is potentially expensive. |
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return adapter.isTag(elem) || adapter.getText(elem) !== ""; |
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}); |
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}, |
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"first-child": function (elem, _a) { |
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var adapter = _a.adapter, equals = _a.equals; |
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if (adapter.prevElementSibling) { |
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return adapter.prevElementSibling(elem) == null; |
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} |
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var firstChild = adapter |
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.getSiblings(elem) |
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.find(function (elem) { return adapter.isTag(elem); }); |
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return firstChild != null && equals(elem, firstChild); |
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}, |
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"last-child": function (elem, _a) { |
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var adapter = _a.adapter, equals = _a.equals; |
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var siblings = adapter.getSiblings(elem); |
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for (var i = siblings.length - 1; i >= 0; i--) { |
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if (equals(elem, siblings[i])) |
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return true; |
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if (adapter.isTag(siblings[i])) |
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break; |
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} |
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return false; |
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}, |
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"first-of-type": function (elem, _a) { |
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var adapter = _a.adapter, equals = _a.equals; |
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var siblings = adapter.getSiblings(elem); |
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var elemName = adapter.getName(elem); |
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for (var i = 0; i < siblings.length; i++) { |
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var currentSibling = siblings[i]; |
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if (equals(elem, currentSibling)) |
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return true; |
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if (adapter.isTag(currentSibling) && |
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adapter.getName(currentSibling) === elemName) { |
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break; |
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} |
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} |
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return false; |
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}, |
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"last-of-type": function (elem, _a) { |
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var adapter = _a.adapter, equals = _a.equals; |
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var siblings = adapter.getSiblings(elem); |
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var elemName = adapter.getName(elem); |
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for (var i = siblings.length - 1; i >= 0; i--) { |
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var currentSibling = siblings[i]; |
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if (equals(elem, currentSibling)) |
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return true; |
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if (adapter.isTag(currentSibling) && |
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adapter.getName(currentSibling) === elemName) { |
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break; |
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} |
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} |
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return false; |
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}, |
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"only-of-type": function (elem, _a) { |
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var adapter = _a.adapter, equals = _a.equals; |
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var elemName = adapter.getName(elem); |
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return adapter |
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.getSiblings(elem) |
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.every(function (sibling) { |
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return equals(elem, sibling) || |
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!adapter.isTag(sibling) || |
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adapter.getName(sibling) !== elemName; |
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}); |
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}, |
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"only-child": function (elem, _a) { |
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var adapter = _a.adapter, equals = _a.equals; |
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return adapter |
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.getSiblings(elem) |
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.every(function (sibling) { return equals(elem, sibling) || !adapter.isTag(sibling); }); |
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}, |
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}; |
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function verifyPseudoArgs(func, name, subselect, argIndex) { |
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if (subselect === null) { |
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if (func.length > argIndex) { |
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throw new Error("Pseudo-class :".concat(name, " requires an argument")); |
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} |
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} |
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else if (func.length === argIndex) { |
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throw new Error("Pseudo-class :".concat(name, " doesn't have any arguments")); |
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} |
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} |
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exports.verifyPseudoArgs = verifyPseudoArgs; |
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//# sourceMappingURL=pseudos.js.map
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