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/*-------------------------------------------------------------------------
* drawElements Quality Program OpenGL ES Utilities
* ------------------------------------------------
*
* Copyright 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
/**
* This class allows one to create a random integer, floating point number or boolean (TODO, choose random items from a list and shuffle an array)
*/
'use strict';
goog.provide('framework.delibs.debase.deString');
goog.require('framework.delibs.debase.deMath');
goog.scope(function() {
var deString = framework.delibs.debase.deString;
var deMath = framework.delibs.debase.deMath;
var DE_ASSERT = function(x) {
if (!x)
throw new Error('Assert failed');
};
/**
* Compute hash from string.
* @param {?string} str String to compute hash value for.
* @return {number} Computed hash value.
*/
deString.deStringHash = function(str) {
/* \note [pyry] This hash is used in DT_GNU_HASH and is proven
to be robust for symbol hashing. */
/* \see http://sources.redhat.com/ml/binutils/2006-06/msg00418.html */
/** @type {number} */ var hash = 5381;
/** @type {number} */ var c;
DE_ASSERT(str != undefined);
if (str !== null) {
var i = 0;
while (i < str.length) { //(c = (unsigned int)*str++) != 0)
c = str.charCodeAt(i); //trunc to 8-bit
hash = (hash << 5) + hash + c;
i++;
}
}
return hash;
};
/**
* Checks if a JS string is either empty or undefined
* @param {string} str
* @return {boolean}
*/
deString.deIsStringEmpty = function(str) {
if (str === undefined || str.length == 0)
return true;
return false;
};
/**
* @private
* @param {Object} enumType
* @param {?} value
* @return {string}
*/
deString.getString = function(enumType, value) {
for (var p in enumType)
if (enumType[p] == value)
return p;
if (typeof value === 'undefined')
return 'undefined';
if (!value)
return 'null';
return value.toString(10);
};
/**
* @param {Object} enumType
* @param {?} value
* @return {string}
*/
deString.enumToString = function(enumType, value) {
if (typeof deString.enumToString[enumType] === 'undefined')
deString.enumToString[enumType] = {};
var table = deString.enumToString[enumType];
if (typeof table[value] === 'undefined') {
var v = deString.getString(enumType, value);
table[value] = v;
}
return table[value];
};
});
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