33 lines
726 B
JavaScript
33 lines
726 B
JavaScript
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var translate = require('../../../utils/translate.js');
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function Index() {
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this.seed = 0;
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this.map = Object.create(null);
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}
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Index.prototype.resolve = function(str) {
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var index = this.map[str];
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if (!index) {
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index = ++this.seed;
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this.map[str] = index;
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}
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return index;
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};
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module.exports = function createDeclarationIndexer() {
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var names = new Index();
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var values = new Index();
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return function markDeclaration(node) {
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var property = node.property.name;
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var value = translate(node.value);
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node.id = names.resolve(property) + (values.resolve(value) << 12);
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node.length = property.length + 1 + value.length;
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return node;
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};
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};
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