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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Diagnostics;
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namespace Implab
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{
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public static class Safe
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{
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public static void ArgumentAssert(bool condition, string paramName) {
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if (!condition)
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throw new ArgumentException("The parameter is invalid", paramName);
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}
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public static void ArgumentMatch(string value, string paramName, Regex rx) {
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if (rx == null)
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throw new ArgumentNullException("rx");
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if (!rx.IsMatch(value))
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throw new ArgumentException(String.Format("The prameter value must match {0}", rx), paramName);
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}
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public static void ArgumentNotEmpty(string value, string paramName) {
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if (String.IsNullOrEmpty(value))
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throw new ArgumentException("The parameter can't be empty", paramName);
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}
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public static void ArgumentNotEmpty<T>(T[] value, string paramName) {
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if (value == null || value.Length == 0)
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throw new ArgumentException("The array must be not emty", paramName);
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}
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public static void ArgumentNotNull(object value, string paramName) {
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if (value == null)
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throw new ArgumentNullException(paramName);
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}
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public static void ArgumentInRange(int value, int min, int max, string paramName) {
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if (value < min || value > max)
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throw new ArgumentOutOfRangeException(paramName);
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}
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public static void ArgumentOfType(object value, Type type, string paramName) {
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if (!type.IsInstanceOfType(value))
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throw new ArgumentException(String.Format("The parameter must be of type {0}", type), paramName);
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}
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public static void Dispose(params IDisposable[] objects) {
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foreach (var d in objects)
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if (d != null)
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d.Dispose();
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}
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public static void Dispose(params object[] objects) {
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foreach (var obj in objects) {
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var d = obj as IDisposable;
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if (d != null)
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d.Dispose();
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}
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}
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public static void Dispose(object obj) {
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var d = obj as IDisposable;
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if (d != null)
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d.Dispose();
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}
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[DebuggerStepThrough]
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public static IPromise<T> Run<T>(Func<T> action) {
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ArgumentNotNull(action, "action");
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try {
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return Promise<T>.FromResult(action());
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} catch (Exception err) {
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return Promise<T>.FromException(err);
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}
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}
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[DebuggerStepThrough]
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public static IPromise Run(Action action) {
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ArgumentNotNull(action, "action");
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try {
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action();
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return Promise.SUCCESS;
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} catch (Exception err) {
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return new FailedPromise(err);
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}
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}
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[DebuggerStepThrough]
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public static IPromise Run(Func<IPromise> action) {
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ArgumentNotNull(action, "action");
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try {
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return action() ?? new FailedPromise(new Exception("The action returned null"));
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} catch (Exception err) {
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return new FailedPromise(err);
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}
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}
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[DebuggerStepThrough]
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public static IPromise<T> Run<T>(Func<IPromise<T>> action) {
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ArgumentNotNull(action, "action");
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try {
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return action() ?? Promise<T>.FromException(new Exception("The action returned null"));
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} catch (Exception err) {
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return Promise<T>.FromException(err);
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}
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}
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}
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}
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