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/*!
* Stylus - Literal
* Copyright (c) Automattic <developer.wordpress.com>
* MIT Licensed
*/
/**
* Module dependencies.
*/
var Node = require('./node')
, nodes = require('./');
/**
* Initialize a new `Literal` with the given `str`.
*
* @param {String} str
* @api public
*/
var Literal = module.exports = function Literal(str){
Node.call(this);
this.val = str;
this.string = str;
this.prefixed = false;
};
/**
* Inherit from `Node.prototype`.
*/
Literal.prototype.__proto__ = Node.prototype;
/**
* Return hash.
*
* @return {String}
* @api public
*/
Literal.prototype.__defineGetter__('hash', function(){
return this.val;
});
/**
* Return literal value.
*
* @return {String}
* @api public
*/
Literal.prototype.toString = function(){
return this.val;
};
/**
* Coerce `other` to a literal.
*
* @param {Node} other
* @return {String}
* @api public
*/
Literal.prototype.coerce = function(other){
switch (other.nodeName) {
case 'ident':
case 'string':
case 'literal':
return new Literal(other.string);
default:
return Node.prototype.coerce.call(this, other);
}
};
/**
* Operate on `right` with the given `op`.
*
* @param {String} op
* @param {Node} right
* @return {Node}
* @api public
*/
Literal.prototype.operate = function(op, right){
var val = right.first;
switch (op) {
case '+':
return new nodes.Literal(this.string + this.coerce(val).string);
default:
return Node.prototype.operate.call(this, op, right);
}
};
/**
* Return a JSON representation of this node.
*
* @return {Object}
* @api public
*/
Literal.prototype.toJSON = function(){
return {
__type: 'Literal',
val: this.val,
string: this.string,
prefixed: this.prefixed,
lineno: this.lineno,
column: this.column,
filename: this.filename
};
};
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