<#/*THIS IS A T4 FILE - see t4_text_templating.md for what it is and how to run codegen*/#>
<#@ template debug="True" #>
<#@ output extension=".gen.cs" encoding="utf-8" #>
<#@ assembly name="System.Core" #>
<#@ import namespace="System.Collections" #>
<#@ import namespace="System.Collections.Generic" #>
<#@ import namespace="System.Linq" #>
<#@ import namespace="System.Text" #>
<#@ import namespace="System.Reflection" #>
//------------------------------------------------------------------------------
//
// This code was generated by a tool.
//
// TextTransform Samples/Packages/com.unity.collections/Unity.Collections/FixedStringFormat.tt
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
//
//------------------------------------------------------------------------------
using System;
using System.Runtime.InteropServices;
using Unity.Collections.LowLevel.Unsafe;
using UnityEngine.Internal;
<#
List> AllCombinationsOf(List> sets)
{
// need array bounds checking etc for production
var combinations = new List>();
// prime the data
foreach (var value in sets[0])
combinations.Add(new List { value });
foreach (var set in sets.Skip(1))
combinations = AddExtraSet(combinations, set);
return combinations;
}
List> AddExtraSet(List> combinations, List set)
{
var newCombinations = from value in set
from combination in combinations
select new List(combination) { value };
return newCombinations.ToList();
}
string WithCommas(IEnumerable input)
{
return string.Join(", ", input);
}
var ARGTYPES = new[] { "int", "float", "string", "FixedStringN", null };
var ARGCOUNT = 4;
var ARGSETS = new List>();
for (int i = 0; i < ARGCOUNT; ++i)
ARGSETS.Add(ARGTYPES.ToList());
var ARGCOMBOS = AllCombinationsOf(ARGSETS);
#>
namespace Unity.Collections
{
///
/// Provides formatting methods for FixedString*N*.
///
[BurstCompatible]
public static class FixedString
{
<#
foreach (var COMBO in ARGCOMBOS)
{
while (COMBO.Count != 0 && COMBO.Last() == null)
COMBO.RemoveAt(COMBO.Count - 1);
if (COMBO.Count == 0 || COMBO.IndexOf(null) != -1)
continue;
var numFixedStringN = COMBO.Count((s) => s == "FixedStringN");
// turn FixedStringN into T1..Tn
var GENERICSPARAM = "";
var BCOMPAT = "";
if (COMBO.Contains("string"))
{
BCOMPAT = "[NotBurstCompatible]";
}
var GENERICSCONSTRAINT = new StringBuilder();
var TxDOCS = new StringBuilder();
if (numFixedStringN > 0)
{
GENERICSPARAM = $"<{string.Join(",", Enumerable.Range(1, numFixedStringN).Select((n) => $"T{n}"))}>";
if (!COMBO.Contains("string"))
{
BCOMPAT = $"[BurstCompatible(GenericTypeArguments = new[] {{ {string.Join(", ", Enumerable.Range(1, numFixedStringN).Select((n) => $"typeof(FixedString32Bytes /*$T{n}*/)"))} }} )]";
}
for (int i = 0; i < numFixedStringN; ++i)
{
var index = COMBO.IndexOf("FixedStringN");
COMBO[index] = $"T{i + 1}";
GENERICSCONSTRAINT.Append($" where T{i + 1} : struct, INativeList, IUTF8Bytes\n");
TxDOCS.Append($" /// \r\n");
}
}
var ARGS = Enumerable.Range(0, COMBO.Count).Select((n) => $"{COMBO[n]} arg{n}");
var ARGNAMES = Enumerable.Range(0, COMBO.Count).Select((n) => $"arg{n}").ToList();
var CONVERSIONS = new StringBuilder();
for (int i = 0; i < COMBO.Count; ++i)
{
if (COMBO[i].StartsWith("T"))
continue;
CONVERSIONS.Append($" FixedString32Bytes carg{i} = default; carg{i}.Append(arg{i});\n");
ARGNAMES[i] = $"carg{i}";
}
var RETURNTYPE = "FixedString128Bytes";
if (COMBO.Count > 3)
RETURNTYPE = "FixedString512Bytes";
var ARGxDOCS = String.Join("\r\n /// ", Enumerable.Range(0, COMBO.Count).Select(n => $"Value to interpolate into the format string."));
#>
///
/// Returns a new string produced by interpolating a format string.
///
///
/// Similar to StringBuilder.AppendFormat but with significant limitations:
/// - Only supports numeric format placeholders of the form `{0}` .. `{N}`.
/// - No format modifiers (*e.g.* `{0:x}`) are supported.
///
/// The various overloads of this method take up to four values for interpolation. The allowed argument types are:
/// - FixedString*N*Bytes
/// - string
/// - int
/// - float
/// - structs implementing INativeList<byte> and IUTF8Bytes
///
///
///
/// The format string.
<#=TxDOCS#>
/// <#=ARGxDOCS#>
/// A new string produced by interpolating the format string.
<#=BCOMPAT#>
public static <#=RETURNTYPE#> Format<#=GENERICSPARAM#>(<#=RETURNTYPE#> formatString, <#=WithCommas(ARGS)#>)
<#=GENERICSCONSTRAINT#>
{
<#=RETURNTYPE#> result = default;
<#=CONVERSIONS#>
result.AppendFormat(formatString, <#=WithCommas(ARGNAMES)#>);
return result;
}
<#
}
#>
}
}