44 lines
965 B
JavaScript
44 lines
965 B
JavaScript
// Keywords
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(function(baselib) {
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var exports = {};
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baselib.keywords = exports;
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var Keyword = function(val) {
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this.val = val;
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};
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var keywordCache = {};
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// makeInstance: string -> Keyword.
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Keyword.makeInstance = function(val) {
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// To ensure that we can eq? symbols with equal values.
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if (!(val in keywordCache)) {
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keywordCache[val] = new Keyword(val);
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} else {
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}
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return keywordCache[val];
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};
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Keyword.prototype.equals = function(other, aUnionFind) {
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return other instanceof Keyword &&
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this.val == other.val;
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};
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Keyword.prototype.toString = function(cache) {
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return this.val;
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};
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Keyword.prototype.toWrittenString = function(cache) {
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return this.val;
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};
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Keyword.prototype.toDisplayedString = function(cache) {
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return this.val;
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};
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exports.Keyword = Keyword;
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})(this['plt'].baselib); |