20790333246

Committed 07 Jan 2026 05:27PM UTC coverage: 82.197% (-0.2%) from 82.431%

Build # 20790333246

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push

github

Committed by

web-flow

Commit Message

Merge pull request #378 from JaCraig/dependabot/nuget/Mecha.Core/dependencies-bddfd397ad

fix: Bump the dependencies group with 1 update

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763 of 1060 branches covered (71.98%)

Branch coverage included in aggregate %.

1347 of 1507 relevant lines covered (89.38%)

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92.31

/Mecha.Core/Generator/DefaultGenerators/DefaultGenerator.cs

﻿/*
Copyright 2021 James Craig

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.
*/

using Mecha.Core.ExtensionMethods;
using Mecha.Core.Generator.DefaultGenerators.Utils;
using Mecha.Core.Generator.Interfaces;
using System;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Reflection;

namespace Mecha.Core.Generator.DefaultGenerators
{
    /// <summary>
    /// Default generator
    /// </summary>
    /// <seealso cref="IGenerator"/>
    public class DefaultGenerator : IGenerator
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="DefaultGenerator"/> class.
        /// </summary>
        /// <param name="random">The random.</param>
        public DefaultGenerator(Mirage.Random random)
        {
            RandomObj = random;
            MethodInfo[] Methods = RandomObj.GetType().GetMethods();
            GenericRandMethod = System.Array.Find(Methods, x => x.IsGenericMethod && x.GetParameters().Length == 2);
        }

        /// <summary>
        /// Gets the order.
        /// </summary>
        /// <value>The order.</value>
        public int Order => int.MaxValue;

        /// <summary>
        /// Gets the generic rand method.
        /// </summary>
        /// <value>The generic rand method.</value>
        private MethodInfo? GenericRandMethod { get; }

        /// <summary>
        /// Gets the random object.
        /// </summary>
        /// <value>The random object.</value>
        private Mirage.Random RandomObj { get; }

        /// <summary>
        /// Determines whether this instance can generate the specified parameter.
        /// </summary>
        /// <param name="parameter">The parameter.</param>
        /// <returns>
        /// <c>true</c> if this instance can generate the specified parameter; otherwise, <c>false</c>.
        /// </returns>
        public bool CanGenerate(ParameterInfo? parameter)
        {
            return parameter?.HasDefaultValue == false
                && !parameter.ParameterType.IsInterface
                && !parameter.ParameterType.IsAbstract
                && !parameter.ParameterType.IsSpecialType(out Type? _)
                && (parameter.ParameterType.IsValueType
                    || parameter.ParameterType.IsEnum
                    || parameter.ParameterType == typeof(string)
                    || parameter.ParameterType.GetConstructors().Any(x => x.GetParameters().Length == 0));
        }

        /// <summary>
        /// Generates the next object of the specified parameter type.
        /// </summary>
        /// <param name="parameter">The parameter.</param>
        /// <param name="min">The minimum.</param>
        /// <param name="max">The maximum.</param>
        /// <returns>The next object.</returns>
        public ParameterValue Next(ParameterInfo? parameter, object? min, object? max)
        {
            if (parameter is null || !CanGenerate(parameter))
                return new ParameterValue("Default Generator", null);
            var defaultValue = min;
            if (min == max)
            {
                max = min = null;
            }
            min = FixMinValue(min, parameter);
            max = FixMaxValue(max, parameter);
            if (min is not null
                && max is not null
                && min.GetType() == max.GetType()
                && min is IComparable MinValue
                && max is IComparable MaxValue
                && MinValue.CompareTo(MaxValue) > 0)
            {
                (max, min) = (min, max);
            }

            try
            {
                MethodInfo? GenericMethod = GenericRandMethod?.MakeGenericMethod(parameter.ParameterType);
                return new ParameterValue("Default Generator", GetValue(parameter, min, max, GenericMethod));
            }
            catch (Exception) { return new ParameterValue("Default Generator", defaultValue); }
        }

        /// <summary>
        /// Fixes the maximum value.
        /// </summary>
        /// <param name="value">The value.</param>
        /// <param name="parameter">The parameter.</param>
        /// <returns></returns>
        private static object? FixMaxValue(object? value, ParameterInfo parameter)
        {
            var Key = parameter.ParameterType.GetHashCode();
            RangeAttribute? Range = parameter.GetCustomAttribute<RangeAttribute>();
            return value is not null || !(MaxValueLookup.Max?.ContainsKey(Key) ?? false)
                ? value
                : Range?.Maximum ?? MaxValueLookup.Max?[Key] ?? false;
        }

        /// <summary>
        /// Fixes the minimum value.
        /// </summary>
        /// <param name="value">The value.</param>
        /// <param name="parameter">The parameter.</param>
        /// <returns></returns>
        private static object? FixMinValue(object? value, ParameterInfo parameter)
        {
            var Key = parameter.ParameterType.GetHashCode();
            RangeAttribute? Range = parameter.GetCustomAttribute<RangeAttribute>();
            return value is not null || !(MinValueLookup.Min?.ContainsKey(Key) ?? false)
                ? value
                : Range?.Minimum ?? MinValueLookup.Min?[Key] ?? false;
        }

        /// <summary>
        /// Gets the value.
        /// </summary>
        /// <param name="parameter">The parameter.</param>
        /// <param name="min">The minimum.</param>
        /// <param name="max">The maximum.</param>
        /// <param name="genericMethod">The generic method.</param>
        /// <returns></returns>
        private object? GetValue(ParameterInfo parameter, object? min, object? max, MethodInfo? genericMethod)
        {
            return parameter.ParameterType.IsPrimitive
                    ? genericMethod?.Invoke(RandomObj, [min, max])
                    : RandomObj.Next(parameter.ParameterType);
        }
    }
}

1	/*
2	Copyright 2021 James Craig
3
4	Licensed under the Apache License, Version 2.0 (the "License");
5	you may not use this file except in compliance with the License.
6	You may obtain a copy of the License at
7
8	http://www.apache.org/licenses/LICENSE-2.0
9
10	Unless required by applicable law or agreed to in writing, software
11	distributed under the License is distributed on an "AS IS" BASIS,
12	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13	See the License for the specific language governing permissions and
14	limitations under the License.
15	*/
16
17	using Mecha.Core.ExtensionMethods;
18	using Mecha.Core.Generator.DefaultGenerators.Utils;
19	using Mecha.Core.Generator.Interfaces;
20	using System;
21	using System.ComponentModel.DataAnnotations;
22	using System.Linq;
23	using System.Reflection;
24
25	namespace Mecha.Core.Generator.DefaultGenerators
26	{
27	/// <summary>
28	/// Default generator
29	/// </summary>
30	/// <seealso cref="IGenerator"/>
31	public class DefaultGenerator : IGenerator
32	{
33	/// <summary>
34	/// Initializes a new instance of the <see cref="DefaultGenerator"/> class.
35	/// </summary>
36	/// <param name="random">The random.</param>
37	public DefaultGenerator(Mirage.Random random)	14✔
38	{
39	RandomObj = random;	14✔
40	MethodInfo[] Methods = RandomObj.GetType().GetMethods();	14✔
41	GenericRandMethod = System.Array.Find(Methods, x => x.IsGenericMethod && x.GetParameters().Length == 2);	70✔
42	}	14✔
43
44	/// <summary>
45	/// Gets the order.
46	/// </summary>
47	/// <value>The order.</value>
48	public int Order => int.MaxValue;	10✔
49
50	/// <summary>
51	/// Gets the generic rand method.
52	/// </summary>
53	/// <value>The generic rand method.</value>
54	private MethodInfo? GenericRandMethod { get; }	3,079,317✔
55
56	/// <summary>
57	/// Gets the random object.
58	/// </summary>
59	/// <value>The random object.</value>
60	private Mirage.Random RandomObj { get; }	3,079,331✔
61
62	/// <summary>
63	/// Determines whether this instance can generate the specified parameter.
64	/// </summary>
65	/// <param name="parameter">The parameter.</param>
66	/// <returns>
67	/// <c>true</c> if this instance can generate the specified parameter; otherwise, <c>false</c>.
68	/// </returns>
69	public bool CanGenerate(ParameterInfo? parameter)
70	{
71	return parameter?.HasDefaultValue == false	37,392,935✔
72	&& !parameter.ParameterType.IsInterface	37,392,935✔
73	&& !parameter.ParameterType.IsAbstract	37,392,935✔
74	&& !parameter.ParameterType.IsSpecialType(out Type? _)	37,392,935✔
75	&& (parameter.ParameterType.IsValueType	37,392,935✔
76	\|\| parameter.ParameterType.IsEnum	37,392,935✔
77	\|\| parameter.ParameterType == typeof(string)	37,392,935✔
78	\|\| parameter.ParameterType.GetConstructors().Any(x => x.GetParameters().Length == 0));	50,841,938✔
79	}
80
81	/// <summary>
82	/// Generates the next object of the specified parameter type.
83	/// </summary>
84	/// <param name="parameter">The parameter.</param>
85	/// <param name="min">The minimum.</param>
86	/// <param name="max">The maximum.</param>
87	/// <returns>The next object.</returns>
88	public ParameterValue Next(ParameterInfo? parameter, object? min, object? max)
89	{
90	if (parameter is null \|\| !CanGenerate(parameter))	3,079,319✔
91	return new ParameterValue("Default Generator", null);	2✔
92	var defaultValue = min;	3,079,317✔
93	if (min == max)	3,079,317✔
94	{
95	max = min = null;	3,077,465✔
96	}
97	min = FixMinValue(min, parameter);	3,079,317✔
98	max = FixMaxValue(max, parameter);	3,079,317✔
99	if (min is not null	3,079,317✔
100	&& max is not null	3,079,317✔
101	&& min.GetType() == max.GetType()	3,079,317✔
102	&& min is IComparable MinValue	3,079,317✔
103	&& max is IComparable MaxValue	3,079,317✔
104	&& MinValue.CompareTo(MaxValue) > 0)	3,079,317✔
105	{
106	(max, min) = (min, max);	55✔
107	}
108
109	try
110	{
111	MethodInfo? GenericMethod = GenericRandMethod?.MakeGenericMethod(parameter.ParameterType);	3,079,317!
112	return new ParameterValue("Default Generator", GetValue(parameter, min, max, GenericMethod));	3,079,317✔
113	}
114	catch (Exception) { return new ParameterValue("Default Generator", defaultValue); }	×
115	}	3,079,317✔
116
117	/// <summary>
118	/// Fixes the maximum value.
119	/// </summary>
120	/// <param name="value">The value.</param>
121	/// <param name="parameter">The parameter.</param>
122	/// <returns></returns>
123	private static object? FixMaxValue(object? value, ParameterInfo parameter)
124	{
125	var Key = parameter.ParameterType.GetHashCode();	3,079,317✔
126	RangeAttribute? Range = parameter.GetCustomAttribute<RangeAttribute>();	3,079,317✔
127	return value is not null \|\| !(MaxValueLookup.Max?.ContainsKey(Key) ?? false)	3,079,317!
128	? value	3,079,317✔
129	: Range?.Maximum ?? MaxValueLookup.Max?[Key] ?? false;	3,079,317✔
130	}
131
132	/// <summary>
133	/// Fixes the minimum value.
134	/// </summary>
135	/// <param name="value">The value.</param>
136	/// <param name="parameter">The parameter.</param>
137	/// <returns></returns>
138	private static object? FixMinValue(object? value, ParameterInfo parameter)
139	{
140	var Key = parameter.ParameterType.GetHashCode();	3,079,317✔
141	RangeAttribute? Range = parameter.GetCustomAttribute<RangeAttribute>();	3,079,317✔
142	return value is not null \|\| !(MinValueLookup.Min?.ContainsKey(Key) ?? false)	3,079,317!
143	? value	3,079,317✔
144	: Range?.Minimum ?? MinValueLookup.Min?[Key] ?? false;	3,079,317✔
145	}
146
147	/// <summary>
148	/// Gets the value.
149	/// </summary>
150	/// <param name="parameter">The parameter.</param>
151	/// <param name="min">The minimum.</param>
152	/// <param name="max">The maximum.</param>
153	/// <param name="genericMethod">The generic method.</param>
154	/// <returns></returns>
155	private object? GetValue(ParameterInfo parameter, object? min, object? max, MethodInfo? genericMethod)
156	{
157	return parameter.ParameterType.IsPrimitive	3,079,317!
158	? genericMethod?.Invoke(RandomObj, [min, max])	3,079,317✔
159	: RandomObj.Next(parameter.ParameterType);	3,079,317✔
160	}
161	}
162	}

JaCraig / Mecha / 20790333246

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