128 lines
2.2 KiB
JavaScript
128 lines
2.2 KiB
JavaScript
|
|
/*!
|
|
* Stylus - Function
|
|
* Copyright (c) Automattic <developer.wordpress.com>
|
|
* MIT Licensed
|
|
*/
|
|
|
|
/**
|
|
* Module dependencies.
|
|
*/
|
|
|
|
var Node = require('./node');
|
|
|
|
/**
|
|
* Initialize a new `Function` with `name`, `params`, and `body`.
|
|
*
|
|
* @param {String} name
|
|
* @param {Params|Function} params
|
|
* @param {Block} body
|
|
* @api public
|
|
*/
|
|
|
|
var Function = module.exports = function Function(name, params, body){
|
|
Node.call(this);
|
|
this.name = name;
|
|
this.params = params;
|
|
this.block = body;
|
|
if ('function' == typeof params) this.fn = params;
|
|
};
|
|
|
|
/**
|
|
* Check function arity.
|
|
*
|
|
* @return {Boolean}
|
|
* @api public
|
|
*/
|
|
|
|
Function.prototype.__defineGetter__('arity', function(){
|
|
return this.params.length;
|
|
});
|
|
|
|
/**
|
|
* Inherit from `Node.prototype`.
|
|
*/
|
|
|
|
Function.prototype.__proto__ = Node.prototype;
|
|
|
|
/**
|
|
* Return hash.
|
|
*
|
|
* @return {String}
|
|
* @api public
|
|
*/
|
|
|
|
Function.prototype.__defineGetter__('hash', function(){
|
|
return 'function ' + this.name;
|
|
});
|
|
|
|
/**
|
|
* Return a clone of this node.
|
|
*
|
|
* @return {Node}
|
|
* @api public
|
|
*/
|
|
|
|
Function.prototype.clone = function(parent){
|
|
if (this.fn) {
|
|
var clone = new Function(
|
|
this.name
|
|
, this.fn);
|
|
} else {
|
|
var clone = new Function(this.name);
|
|
clone.params = this.params.clone(parent, clone);
|
|
clone.block = this.block.clone(parent, clone);
|
|
}
|
|
clone.lineno = this.lineno;
|
|
clone.column = this.column;
|
|
clone.filename = this.filename;
|
|
return clone;
|
|
};
|
|
|
|
/**
|
|
* Return <name>(param1, param2, ...).
|
|
*
|
|
* @return {String}
|
|
* @api public
|
|
*/
|
|
|
|
Function.prototype.toString = function(){
|
|
if (this.fn) {
|
|
return this.name
|
|
+ '('
|
|
+ this.fn.toString()
|
|
.match(/^function *\w*\((.*?)\)/)
|
|
.slice(1)
|
|
.join(', ')
|
|
+ ')';
|
|
} else {
|
|
return this.name
|
|
+ '('
|
|
+ this.params.nodes.join(', ')
|
|
+ ')';
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Return a JSON representation of this node.
|
|
*
|
|
* @return {Object}
|
|
* @api public
|
|
*/
|
|
|
|
Function.prototype.toJSON = function(){
|
|
var json = {
|
|
__type: 'Function',
|
|
name: this.name,
|
|
lineno: this.lineno,
|
|
column: this.column,
|
|
filename: this.filename
|
|
};
|
|
if (this.fn) {
|
|
json.fn = this.fn;
|
|
} else {
|
|
json.params = this.params;
|
|
json.block = this.block;
|
|
}
|
|
return json;
|
|
};
|