From 4ea37e18bfed8de162dfb816971417a0679b602f Mon Sep 17 00:00:00 2001
From: Mark Rowe <mrowe@bdash.net.nz>
Date: Wed, 7 May 2025 18:22:50 -0700
Subject: Implement a Pseudo Objective-C language representation

This is implemented in the Pseudo C plug-in as it shares 99% of the
logic. The Objective-C support is implemented in a subclass of
`PseudoCFunction`. The handling of instruction types that the
Objective-C representation needs to customize is extracted into virtual
functions that the Objective-C subclass overrides.

This currently supports:
 * Rewriting `objc_msgSend` / `objc_msgSendSuper2` with constant
   selectors to `[receiver message]` notation.
 * Rewriting calls to `objc_alloc` / `objc_alloc_init` / `objc_new` to
   the equivalent message send notation.
 * Rewriting `objc_retain` / `objc_release` and friends to the
   equivalent message send notation.
 * Displaying Objective-C class references as their class names rather
   than `_OBJC_CLASS_$_` symbol names.
 * Displaying Objective-C string literals as `@"..."`.

This works best when used in conjunction with
https://github.com/bdash/bn-objc-extras as the reference counting runtime
calls add so much clutter.
---
 lang/c/plugin.cpp | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 lang/c/plugin.cpp

(limited to 'lang/c/plugin.cpp')

diff --git a/lang/c/plugin.cpp b/lang/c/plugin.cpp
new file mode 100644
index 00000000..721cfc19
--- /dev/null
+++ b/lang/c/plugin.cpp
@@ -0,0 +1,30 @@
+#include "binaryninjaapi.h"
+#include "pseudoc.h"
+#include "pseudoobjc.h"
+
+using namespace BinaryNinja;
+
+extern "C"
+{
+	BN_DECLARE_CORE_ABI_VERSION
+
+#ifndef DEMO_EDITION
+	BINARYNINJAPLUGIN void CorePluginDependencies()
+	{
+	}
+#endif
+
+#ifdef DEMO_EDITION
+	bool PseudoCPluginInit()
+#else
+	BINARYNINJAPLUGIN bool CorePluginInit()
+#endif
+	{
+		LanguageRepresentationFunctionType* type = new PseudoCFunctionType();
+		LanguageRepresentationFunctionType::Register(type);
+
+		type = new PseudoObjCFunctionType();
+		LanguageRepresentationFunctionType::Register(type);
+		return true;
+	}
+}
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