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4 years ago
/**
* Module dependencies.
*/
var Base = require('./compiler');
var inherits = require('inherits');
/**
* Expose compiler.
*/
module.exports = Compiler;
/**
* Initialize a new `Compiler`.
*/
function Compiler(options) {
Base.call(this, options);
}
/**
* Inherit from `Base.prototype`.
*/
inherits(Compiler, Base);
/**
* Compile `node`.
*/
Compiler.prototype.compile = function(node){
return node.stylesheet
.rules.map(this.visit, this)
.join('');
};
/**
* Visit comment node.
*/
Compiler.prototype.comment = function(node){
return this.emit('', node.position);
};
/**
* Visit import node.
*/
Compiler.prototype.import = function(node){
return this.emit('@import ' + node.import + ';', node.position);
};
/**
* Visit media node.
*/
Compiler.prototype.media = function(node){
return this.emit('@media ' + node.media, node.position)
+ this.emit('{')
+ this.mapVisit(node.rules)
+ this.emit('}');
};
/**
* Visit document node.
*/
Compiler.prototype.document = function(node){
var doc = '@' + (node.vendor || '') + 'document ' + node.document;
return this.emit(doc, node.position)
+ this.emit('{')
+ this.mapVisit(node.rules)
+ this.emit('}');
};
/**
* Visit charset node.
*/
Compiler.prototype.charset = function(node){
return this.emit('@charset ' + node.charset + ';', node.position);
};
/**
* Visit namespace node.
*/
Compiler.prototype.namespace = function(node){
return this.emit('@namespace ' + node.namespace + ';', node.position);
};
/**
* Visit supports node.
*/
Compiler.prototype.supports = function(node){
return this.emit('@supports ' + node.supports, node.position)
+ this.emit('{')
+ this.mapVisit(node.rules)
+ this.emit('}');
};
/**
* Visit keyframes node.
*/
Compiler.prototype.keyframes = function(node){
return this.emit('@'
+ (node.vendor || '')
+ 'keyframes '
+ node.name, node.position)
+ this.emit('{')
+ this.mapVisit(node.keyframes)
+ this.emit('}');
};
/**
* Visit keyframe node.
*/
Compiler.prototype.keyframe = function(node){
var decls = node.declarations;
return this.emit(node.values.join(','), node.position)
+ this.emit('{')
+ this.mapVisit(decls)
+ this.emit('}');
};
/**
* Visit page node.
*/
Compiler.prototype.page = function(node){
var sel = node.selectors.length
? node.selectors.join(', ')
: '';
return this.emit('@page ' + sel, node.position)
+ this.emit('{')
+ this.mapVisit(node.declarations)
+ this.emit('}');
};
/**
* Visit font-face node.
*/
Compiler.prototype['font-face'] = function(node){
return this.emit('@font-face', node.position)
+ this.emit('{')
+ this.mapVisit(node.declarations)
+ this.emit('}');
};
/**
* Visit host node.
*/
Compiler.prototype.host = function(node){
return this.emit('@host', node.position)
+ this.emit('{')
+ this.mapVisit(node.rules)
+ this.emit('}');
};
/**
* Visit custom-media node.
*/
Compiler.prototype['custom-media'] = function(node){
return this.emit('@custom-media ' + node.name + ' ' + node.media + ';', node.position);
};
/**
* Visit rule node.
*/
Compiler.prototype.rule = function(node){
var decls = node.declarations;
if (!decls.length) return '';
return this.emit(node.selectors.join(','), node.position)
+ this.emit('{')
+ this.mapVisit(decls)
+ this.emit('}');
};
/**
* Visit declaration node.
*/
Compiler.prototype.declaration = function(node){
return this.emit(node.property + ':' + node.value, node.position) + this.emit(';');
};