var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
import { isString, CONST, isBlank } from 'angular2/src/facade/lang';
import { Injectable, Pipe } from 'angular2/core';
import { InvalidPipeArgumentException } from './invalid_pipe_argument_exception';
/**
 * Transforms text to lowercase.
 *
 * ### Example
 *
 * {@example core/pipes/ts/lowerupper_pipe/lowerupper_pipe_example.ts region='LowerUpperPipe'}
 */
export let LowerCasePipe = class {
    transform(value, args = null) {
        if (isBlank(value))
            return value;
        if (!isString(value)) {
            throw new InvalidPipeArgumentException(LowerCasePipe, value);
        }
        return value.toLowerCase();
    }
};
LowerCasePipe = __decorate([
    CONST(),
    Pipe({ name: 'lowercase' }),
    Injectable(), 
    __metadata('design:paramtypes', [])
], LowerCasePipe);
