21 lines
570 B
JavaScript
21 lines
570 B
JavaScript
(function (tree) {
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tree.Variable = function (name, index) { this.name = name, this.index = index };
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tree.Variable.prototype = {
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eval: function (env) {
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var variable, v, name = this.name;
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if (variable = tree.find(env.frames, function (frame) {
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if (v = frame.variable(name)) {
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return v.value.eval(env);
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}
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})) { return variable }
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else {
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throw { message: "variable " + this.name + " is undefined",
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index: this.index };
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}
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}
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};
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})(require('less/tree'));
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