carto/lib/less/tree/rule.js
2010-06-07 15:47:41 -04:00

55 lines
1.4 KiB
JavaScript

if (typeof(require) !== 'undefined') { var tree = require('less/tree') }
tree.Rule = function Rule(name, value, index) {
this.name = name;
this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]);
this.index = index;
if (name.charAt(0) === '@') {
this.variable = true;
} else { this.variable = false }
};
tree.Rule.prototype.toCSS = function () {
if (this.variable) { return "" }
else {
return this.name + ": " + this.value.toCSS() + ";";
}
};
tree.Rule.prototype.eval = function (context) {
return new(tree.Rule)(this.name, this.value.eval(context));
};
tree.Value = function Value(value) {
this.value = value;
this.is = 'value';
};
tree.Value.prototype = {
eval: function (env) {
if (this.value.length === 1) {
return this.value[0].eval(env);
} else {
return new(tree.Value)(this.value.map(function (v) {
return v.eval(env);
}));
}
},
toCSS: function () {
return this.value.map(function (e) {
return e.toCSS();
}).join(', ');
}
};
tree.Shorthand = function Shorthand(a, b) {
this.a = a;
this.b = b;
};
tree.Shorthand.prototype = {
toCSS: function (env) {
return this.a.toCSS(env) + "/" + this.b.toCSS(env);
},
eval: function () { return this }
};