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LinkGenerator.cs
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using System.IO;
using System.Text;
namespace Towel_Generating;
public static class LinkGenerator
{
public static string Run(int size = Program.DefaultGenerationCount)
{
string generatorPath = Path.GetRelativePath(Path.Combine(Path.GetDirectoryName(sourcefilepath())!, "..", ".."), sourcefilepath());
StringBuilder code = new();
code.AppendLine($@"//------------------------------------------------------------------------------");
code.AppendLine($@"// <auto-generated>");
code.AppendLine($@"// This code was generated from ""{generatorPath}"".");
code.AppendLine($@"// </auto-generated>");
code.AppendLine($@"//------------------------------------------------------------------------------");
code.AppendLine($@"");
code.AppendLine($@"namespace Towel.DataStructures;");
code.AppendLine($@"");
code.AppendLine($@"/// <summary>Represents a link between objects.</summary>");
code.AppendLine($@"public interface Link : IDataStructure<object>, System.Runtime.CompilerServices.ITuple");
code.AppendLine($@"{{");
code.AppendLine($@" #region Properties");
code.AppendLine($@"");
code.AppendLine($@" int System.Runtime.CompilerServices.ITuple.Length => Size;");
code.AppendLine($@"");
code.AppendLine($@" /// <summary>The number of values in the tuple.</summary>");
code.AppendLine($@" int Size {{ get; }}");
code.AppendLine($@"");
code.AppendLine($@" #endregion");
code.AppendLine($@"}}");
for (int i = 1, I = 2; i <= size; i++, I++)
{
code.AppendLine($@"");
code.AppendLine($@"/// <summary>Represents a link between objects.</summary>");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@"/// <typeparam name=""T{j}"">The type of #{j} value in the link.</typeparam>");
}
code.AppendLine($@"public class Link<{Join(1..I, n => $"T{n}", ", ")}> : Link, ICloneable<Link<{Join(1..I, n => $"T{n}", ", ")}>>");
code.AppendLine($@"{{");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@" /// <summary>The #{j} value of the link.</summary>");
code.AppendLine($@" public T{j} Value{j} {{ get; set; }}");
}
code.AppendLine($@"");
code.AppendLine($@" #region Constructors");
code.AppendLine($@"");
code.AppendLine($@" /// <summary>Constructs a link of values.</summary>");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@" /// <param name=""value{j}"">The #{j} value to be linked.</param>");
}
code.AppendLine($@" public Link({Join(1..I, n => $"T{n} value{n}", ", ")})");
code.AppendLine($@" {{");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@" Value{j} = value{j};");
}
code.AppendLine($@" }}");
code.AppendLine($@"");
code.AppendLine($@" #endregion");
code.AppendLine($@"");
code.AppendLine($@" #region Properties");
code.AppendLine($@"");
code.AppendLine($@" /// <inheritdoc/>");
code.AppendLine($@" public int Size => {i};");
code.AppendLine($@"");
code.AppendLine($@" /// <inheritdoc/>");
code.AppendLine($@" public object this[int index]");
code.AppendLine($@" {{");
code.AppendLine($@" get => index switch");
code.AppendLine($@" {{");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@" {j} => Value{j},");
}
code.AppendLine($@" _ => throw new IndexOutOfRangeException($""{{nameof(index)}} < 1 || {i} < {{nameof(index)}}""),");
code.AppendLine($@" }};");
code.AppendLine($@" }}");
code.AppendLine($@"");
code.AppendLine($@" #endregion");
code.AppendLine($@"");
code.AppendLine($@" #region Operators");
code.AppendLine($@"");
code.AppendLine($@" /// <summary>Converts a tuple to a link.</summary>");
code.AppendLine($@" /// <param name=""tuple"">The tuple to convert to a link.</param>");
code.AppendLine($@" public static implicit operator Link<{Join(1..I, n => $"T{n}", ", ")}>({(i is 1 ? "ValueTuple<" : "(")}{Join(1..I, n => $"T{n}", ", ")}{(i is 1 ? ">" : ")")} tuple) =>");
code.AppendLine($@" new({Join(1..I, n => $"tuple.Item{n}", ", ")});");
code.AppendLine($@"");
code.AppendLine($@" /// <summary>Converts a link to a tuple.</summary>");
code.AppendLine($@" /// <param name=""link"">The link to convert to a tuple.</param>");
code.AppendLine($@" public static implicit operator {(i is 1 ? "ValueTuple<" : "(")}{Join(1..I, n => $"T{n}", ", ")}{(i is 1 ? ">" : ")")}(Link<{Join(1..I, n => $"T{n}", ", ")}> link) =>");
code.AppendLine($@" {(i is 1 ? $"new(" : "(")}{Join(1..I, n => $"link.Value{n}", ", ")});");
code.AppendLine($@"");
code.AppendLine($@" /// <summary>Converts a tuple to a link.</summary>");
code.AppendLine($@" /// <param name=""tuple"">The tuple to convert to a link.</param>");
code.AppendLine($@" public static implicit operator Link<{Join(1..I, n => $"T{n}", ", ")}>(Tuple<{Join(1..I, n => $"T{n}", ", ")}> tuple) =>");
code.AppendLine($@" new({Join(1..I, n => $"tuple.Item{n}", ", ")});");
code.AppendLine($@"");
code.AppendLine($@" /// <summary>Converts a link to a tuple.</summary>");
code.AppendLine($@" /// <param name=""link"">The link to convert to a tuple.</param>");
code.AppendLine($@" public static implicit operator Tuple<{Join(1..I, n => $"T{n}", ", ")}>(Link<{Join(1..I, n => $"T{n}", ", ")}> link) =>");
code.AppendLine($@" new({Join(1..I, n => $"link.Value{n}", ", ")});");
code.AppendLine($@"");
code.AppendLine($@" /// <summary>Converts a class link to a struct link.</summary>");
code.AppendLine($@" /// <param name=""link"">The class link to convert to a struct link.</param>");
code.AppendLine($@" public static implicit operator Link<{Join(1..I, n => $"T{n}", ", ")}>(LinkStruct<{Join(1..I, n => $"T{n}", ", ")}> link) =>");
code.AppendLine($@" new({Join(1..I, n => $"link.Value{n}", ", ")});");
code.AppendLine($@"");
code.AppendLine($@" #endregion");
code.AppendLine($@"");
code.AppendLine($@" #region Methods");
code.AppendLine($@"");
code.AppendLine($@" System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() => GetEnumerator();");
code.AppendLine($@"");
code.AppendLine($@" /// <inheritdoc/>");
code.AppendLine($@" public System.Collections.Generic.IEnumerator<object> GetEnumerator()");
code.AppendLine($@" {{");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@" yield return Value{j};");
}
code.AppendLine($@" }}");
code.AppendLine($@"");
code.AppendLine($@" /// <summary>Gets the types of the values of this link.</summary>");
code.AppendLine($@" /// <returns>The types of the values of this link.</returns>");
code.AppendLine($@" public Type[] Types() => new[] {{ {Join(1..I, n => $"typeof(T{n})", ", ")} }};");
code.AppendLine($@"");
code.AppendLine($@" /// <inheritdoc/>");
code.AppendLine($@" public StepStatus StepperBreak<TStep>(TStep step = default)");
code.AppendLine($@" where TStep : struct, IFunc<object, StepStatus>");
code.AppendLine($@" {{");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@" if (step.Invoke(Value{j}) is Break) return Break;");
}
code.AppendLine($@" return Continue;");
code.AppendLine($@" }}");
code.AppendLine($@"");
code.AppendLine($@" /// <inheritdoc/>");
code.AppendLine($@" public Link<{Join(1..I, n => $"T{n}", ", ")}> Clone() => new({Join(1..I, n => $"Value{n}", ", ")});");
code.AppendLine($@"");
code.AppendLine($@" /// <inheritdoc/>");
code.AppendLine($@" public object[] ToArray() => new object[] {{ {Join(1..I, n => $"Value{n}", ", ")} }};");
code.AppendLine($@"");
code.AppendLine($@" /// <inheritdoc/>");
code.AppendLine($@" public override int GetHashCode() => HashCode.Combine({Join(1..I, n => $"Value{n}", ", ")});");
code.AppendLine($@"");
code.AppendLine($@" /// <inheritdoc/>");
code.AppendLine($@" public override bool Equals(object obj) =>");
code.AppendLine($@" obj is LinkStruct<{Join(1..I, n => $"T{n}", ", ")}> linkStruct && Equals(linkStruct) ||");
code.AppendLine($@" obj is Link<{Join(1..I, n => $"T{n}", ", ")}> link && Equals(link) ||");
code.AppendLine($@" obj is ValueTuple<{Join(1..I, n => $"T{n}", ", ")}> valueTuple && Equals(valueTuple) ||");
code.AppendLine($@" obj is Tuple<{Join(1..I, n => $"T{n}", ", ")}> tuple && Equals(tuple);");
code.AppendLine($@"");
code.AppendLine($@" /// <summary>Check for equality with another link.</summary>");
code.AppendLine($@" /// <param name=""b"">The other link to check for equality with.</param>");
code.AppendLine($@" /// <returns>True if equal; false if not.</returns>");
code.AppendLine($@" public bool Equals(Link<{Join(1..I, n => $"T{n}", ", ")}> b) =>");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@" Equate(Value{j}, b.Value{j}){(j == i ? ";" : " &&")}");
}
code.AppendLine($@"");
code.AppendLine($@" /// <summary>Deconstructs the link.</summary>");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@" /// <param name=""value{j}"">The #{j} value of the link.</param>");
}
code.AppendLine($@" public void Deconstruct({Join(1..I, n => $"out T{n} value{n}", ", ")})");
code.AppendLine($@" {{");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@" value{j} = Value{j};");
}
code.AppendLine($@" }}");
code.AppendLine($@"");
code.AppendLine($@" #endregion");
code.AppendLine($@"}}");
code.AppendLine($@"");
code.AppendLine($@"/// <summary>Represents a link between objects.</summary>");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@"/// <typeparam name=""T{j}"">The type of #{j} value in the link.</typeparam>");
}
code.AppendLine($@"public struct LinkStruct<{Join(1..I, n => $"T{n}", ", ")}> : Link, ICloneable<LinkStruct<{Join(1..I, n => $"T{n}", ", ")}>>");
code.AppendLine($@"{{");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@" /// <summary>The #{j} value of the link.</summary>");
code.AppendLine($@" public T{j} Value{j} {{ get; set; }}");
}
code.AppendLine($@"");
code.AppendLine($@" #region Constructors");
code.AppendLine($@"");
code.AppendLine($@" /// <summary>Creates a link between objects.</summary>");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@" /// <param name=""value{j}"">The #{j} value to be linked.</param>");
}
code.AppendLine($@" public LinkStruct({Join(1..I, n => $"T{n} value{n}", ", ")})");
code.AppendLine($@" {{");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@" Value{j} = value{j};");
}
code.AppendLine($@" }}");
code.AppendLine($@"");
code.AppendLine($@" #endregion");
code.AppendLine($@"");
code.AppendLine($@" #region Properties");
code.AppendLine($@"");
code.AppendLine($@" /// <inheritdoc/>");
code.AppendLine($@" public int Size => {i};");
code.AppendLine($@"");
code.AppendLine($@" /// <inheritdoc/>");
code.AppendLine($@" public object this[int index]");
code.AppendLine($@" {{");
code.AppendLine($@" get => index switch");
code.AppendLine($@" {{");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@" {j} => Value{j},");
}
code.AppendLine($@" _ => throw new IndexOutOfRangeException($""{{nameof(index)}} < 1 || {i} < {{nameof(index)}}""),");
code.AppendLine($@" }};");
code.AppendLine($@" }}");
code.AppendLine($@"");
code.AppendLine($@" #endregion");
code.AppendLine($@"");
code.AppendLine($@" #region Operators");
code.AppendLine($@"");
code.AppendLine($@" /// <summary>Converts a tuple to a link.</summary>");
code.AppendLine($@" /// <param name=""tuple"">The tuple to convert to a link.</param>");
code.AppendLine($@" public static implicit operator LinkStruct<{Join(1..I, n => $"T{n}", ", ")}>({(i is 1 ? "ValueTuple<" : "(")}{Join(1..I, n => $"T{n}", ", ")}{(i is 1 ? ">" : ")")} tuple) =>");
code.AppendLine($@" new({Join(1..I, n => $"tuple.Item{n}", ", ")});");
code.AppendLine($@"");
code.AppendLine($@" /// <summary>Converts a link to a tuple.</summary>");
code.AppendLine($@" /// <param name=""link"">The link to convert to a tuple.</param>");
code.AppendLine($@" public static implicit operator {(i is 1 ? "ValueTuple<" : "(")}{Join(1..I, n => $"T{n}", ", ")}{(i is 1 ? ">" : ")")}(LinkStruct<{Join(1..I, n => $"T{n}", ", ")}> link) =>");
code.AppendLine($@" {(i is 1 ? $"new(" : "(")}{Join(1..I, n => $"link.Value{n}", ", ")});");
code.AppendLine($@"");
code.AppendLine($@" /// <summary>Converts a tuple to a link.</summary>");
code.AppendLine($@" /// <param name=""tuple"">The tuple to convert to a link.</param>");
code.AppendLine($@" public static implicit operator LinkStruct<{Join(1..I, n => $"T{n}", ", ")}>(Tuple<{Join(1..I, n => $"T{n}", ", ")}> tuple) =>");
code.AppendLine($@" new({Join(1..I, n => $"tuple.Item{n}", ", ")});");
code.AppendLine($@"");
code.AppendLine($@" /// <summary>Converts a link to a tuple.</summary>");
code.AppendLine($@" /// <param name=""link"">The link to convert to a tuple.</param>");
code.AppendLine($@" public static implicit operator Tuple<{Join(1..I, n => $"T{n}", ", ")}>(LinkStruct<{Join(1..I, n => $"T{n}", ", ")}> link) =>");
code.AppendLine($@" new({Join(1..I, n => $"link.Value{n}", ", ")});");
code.AppendLine($@"");
code.AppendLine($@" /// <summary>Converts a class link to a struct link.</summary>");
code.AppendLine($@" /// <param name=""link"">The class link to convert to a struct link.</param>");
code.AppendLine($@" public static implicit operator LinkStruct<{Join(1..I, n => $"T{n}", ", ")}>(Link<{Join(1..I, n => $"T{n}", ", ")}> link) =>");
code.AppendLine($@" new({Join(1..I, n => $"link.Value{n}", ", ")});");
code.AppendLine($@"");
code.AppendLine($@" #endregion");
code.AppendLine($@"");
code.AppendLine($@" #region Methods");
code.AppendLine($@"");
code.AppendLine($@" System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() => GetEnumerator();");
code.AppendLine($@"");
code.AppendLine($@" /// <inheritdoc/>");
code.AppendLine($@" public System.Collections.Generic.IEnumerator<object> GetEnumerator()");
code.AppendLine($@" {{");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@" yield return Value{j};");
}
code.AppendLine($@" }}");
code.AppendLine($@"");
code.AppendLine($@" /// <summary>Gets the types of the values of this link.</summary>");
code.AppendLine($@" /// <returns>The types of the values of this link.</returns>");
code.AppendLine($@" public Type[] Types() => new[] {{ {Join(1..I, n => $"typeof(T{n})", ", ")} }};");
code.AppendLine($@"");
code.AppendLine($@" /// <inheritdoc/>");
code.AppendLine($@" public StepStatus StepperBreak<TStep>(TStep step = default)");
code.AppendLine($@" where TStep : struct, IFunc<object, StepStatus>");
code.AppendLine($@" {{");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@" if (step.Invoke(Value{j}) is Break) return Break;");
}
code.AppendLine($@" return Continue;");
code.AppendLine($@" }}");
code.AppendLine($@"");
code.AppendLine($@" /// <inheritdoc/>");
code.AppendLine($@" public LinkStruct<{Join(1..I, n => $"T{n}", ", ")}> Clone() => new({Join(1..I, n => $"Value{n}", ", ")});");
code.AppendLine($@"");
code.AppendLine($@" /// <inheritdoc/>");
code.AppendLine($@" public object[] ToArray() => new object[] {{ {Join(1..I, n => $"Value{n}", ", ")} }};");
code.AppendLine($@"");
code.AppendLine($@" /// <inheritdoc/>");
code.AppendLine($@" public override int GetHashCode() => HashCode.Combine({Join(1..I, n => $"Value{n}", ", ")});");
code.AppendLine($@"");
code.AppendLine($@" /// <inheritdoc/>");
code.AppendLine($@" public override bool Equals(object obj) =>");
code.AppendLine($@" obj is LinkStruct<{Join(1..I, n => $"T{n}", ", ")}> linkStruct && Equals(linkStruct) ||");
code.AppendLine($@" obj is Link<{Join(1..I, n => $"T{n}", ", ")}> link && Equals(link) ||");
code.AppendLine($@" obj is ValueTuple<{Join(1..I, n => $"T{n}", ", ")}> valueTuple && Equals(valueTuple) ||");
code.AppendLine($@" obj is Tuple<{Join(1..I, n => $"T{n}", ", ")}> tuple && Equals(tuple);");
code.AppendLine($@"");
code.AppendLine($@" /// <summary>Check for equality with another link.</summary>");
code.AppendLine($@" /// <param name=""b"">The other link to check for equality with.</param>");
code.AppendLine($@" /// <returns>True if equal; false if not.</returns>");
code.AppendLine($@" public bool Equals(LinkStruct<{Join(1..I, n => $"T{n}", ", ")}> b) =>");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@" Equate(Value{j}, b.Value{j}){(j == i ? ";" : " &&")}");
}
code.AppendLine($@"");
code.AppendLine($@" /// <summary>Deconstructs the link.</summary>");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@" /// <param name=""value{j}"">The #{j} value of the link.</param>");
}
code.AppendLine($@" public void Deconstruct({Join(1..I, n => $"out T{n} value{n}", ", ")})");
code.AppendLine($@" {{");
for (int j = 1; j <= i; j++)
{
code.AppendLine($@" value{j} = Value{j};");
}
code.AppendLine($@" }}");
code.AppendLine($@"");
code.AppendLine($@" #endregion");
code.AppendLine($@"}}");
}
return code.ToString();
}
}