function GLError (rawError, shortMessage, longMessage) {
    this.shortMessage = shortMessage || ''
    this.longMessage = longMessage || ''
    this.rawError = rawError || ''
    this.message =
      'gl-shader: ' + (shortMessage || rawError || '') +
      (longMessage ? '\n'+longMessage : '')
    this.stack = (new Error()).stack
}
GLError.prototype = new Error
GLError.prototype.name = 'GLError'
GLError.prototype.constructor = GLError
module.exports = GLError