Refactor some string output helper functions into extension methods

2019-11-05 19:34:12 +01:00
parent 9d4d8da42b
commit 067cea9e5f
5 changed files with 51 additions and 44 deletions
--- a/Il2CppInspector/Reflection/Extensions.cs
+++ b/Il2CppInspector/Reflection/Extensions.cs
@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Il2CppInspector.Reflection
+{
+    public static class Extensions
+    {
+        // Convert a list of CustomAttributeData objects into C#-friendly attribute usages
+        public static string ToString(this IEnumerable<CustomAttributeData> attributes, string linePrefix = "", string attributePrefix = "", bool inline = false) {
+            var sb = new StringBuilder();
+
+            foreach (var cad in attributes) {
+                var name = cad.AttributeType.CSharpName;
+                var suffix = name.LastIndexOf("Attribute", StringComparison.Ordinal);
+                if (suffix != -1)
+                    name = name[..suffix];
+                sb.Append($"{linePrefix}[{attributePrefix}{name}] {(inline? "/*" : "//")} {((ulong)cad.VirtualAddress).ToAddressString()}{(inline? " */ " : "\n")}");
+            }
+
+            return sb.ToString();
+        }
+
+        // Output a ulong as a 32 or 64-bit hexadecimal address
+        public static string ToAddressString(this ulong address) => address <= 0xffff_ffff
+            ? string.Format($"0x{(uint)address:X8}")
+            : string.Format($"0x{address:X16}");
+
+        // Output a value in C#-friendly syntax
+        public static string ToCSharpValue(this object value) {
+            if (value is bool)
+                return (bool) value ? "true" : "false";
+            if (value is string)
+                return $"\"{value}\"";
+            if (!(value is char))
+                return (value?.ToString() ?? "null");
+            var cValue = (int) (char) value;
+            if (cValue < 32 || cValue > 126)
+                return $"'\\x{cValue:x4}'";
+            return $"'{value}'";
+        }
+    }
+}