21 lines
536 B
JavaScript
21 lines
536 B
JavaScript
var t = require("../../types");
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module.exports = require("../helpers/build-conditional-assignment-operator-transformer")({
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is: function (node) {
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var is = t.isAssignmentExpression(node) && node.operator === "?=";
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if (is) t.assertMemberExpression(node.left);
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return is;
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},
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build: function (node, file) {
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return t.unaryExpression(
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"!",
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t.callExpression(
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t.memberExpression(file.addHelper("has-own"), t.identifier("call")),
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[node.object, node.property]
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),
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true
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);
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}
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});
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