74 lines
3.1 KiB
C#
74 lines
3.1 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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namespace Il2CppInspector.Reflection
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{
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public static class Extensions
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{
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// Convert a list of CustomAttributeData objects into C#-friendly attribute usages
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public static string ToString(this IEnumerable<CustomAttributeData> attributes, string linePrefix = "", string attributePrefix = "", bool inline = false, bool emitPointer = false) {
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var sb = new StringBuilder();
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foreach (var cad in attributes) {
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var name = cad.AttributeType.CSharpName;
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var suffix = name.LastIndexOf("Attribute", StringComparison.Ordinal);
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if (suffix != -1)
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name = name[..suffix];
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sb.Append($"{linePrefix}[{attributePrefix}{name}]");
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if (emitPointer)
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sb.Append($" {(inline? "/*" : "//")} {cad.VirtualAddress.ToAddressString()}{(inline? " */" : "")}");
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sb.Append(inline? " ":"\n");
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}
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return sb.ToString();
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}
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// Output a ulong as a 32 or 64-bit hexadecimal address
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public static string ToAddressString(this ulong address) => address <= 0xffff_ffff
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? string.Format($"0x{(uint)address:X8}")
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: string.Format($"0x{address:X16}");
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public static string ToAddressString(this (ulong start, ulong end)? address) => ToAddressString(address?.start ?? 0) + "-" + ToAddressString(address?.end ?? 0);
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// C# string literal escape characters
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// Taken from: https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/strings/#regular-and-verbatim-string-literals
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private static Dictionary<char, string> escapeChars = new Dictionary<char, string> {
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['\''] = @"\'",
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['"'] = @"\""",
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['\\'] = @"\\",
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['\0'] = @"\0",
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['\a'] = @"\a",
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['\b'] = @"\b",
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['\f'] = @"\f",
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['\n'] = @"\n",
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['\r'] = @"\r",
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['\t'] = @"\t",
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['\v'] = @"\v"
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};
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// Output a value in C#-friendly syntax
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public static string ToCSharpValue(this object value) {
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if (value is bool)
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return (bool) value ? "true" : "false";
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if (value is string str) {
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// Replace standard escape characters
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var s = new StringBuilder();
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for (var i = 0; i < str.Length; i++)
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// Standard escape characters
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s.Append(escapeChars.ContainsKey(str[i]) ? escapeChars[str[i]]
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// Replace everything else with UTF-16 Unicode
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: str[i] < 32 || str[i] > 126 ? @"\u" + $"{str[i]:X4}"
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: str[i].ToString());
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return $"\"{s}\"";
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}
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if (!(value is char))
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return (value?.ToString() ?? "null");
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var cValue = (int) (char) value;
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if (cValue < 32 || cValue > 126)
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return $"'\\x{cValue:x4}'";
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return $"'{value}'";
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}
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}
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}
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