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.

1 files changed, 13 insertions, 0 deletions

diff --git a/lang/c/pseudoc.h b/lang/c/pseudoc.h
index a3b03a88..66178432 100644
--- a/lang/c/pseudoc.h
+++ b/lang/c/pseudoc.h
@@ -52,6 +52,16 @@ protected:
 	void EndLines(
 		const BinaryNinja::HighLevelILInstruction& instr, BinaryNinja::HighLevelILTokenEmitter& tokens) override;
 
+	virtual void GetExpr_CALL_OR_TAILCALL(const BinaryNinja::HighLevelILInstruction& instr,
+		BinaryNinja::HighLevelILTokenEmitter& tokens, BinaryNinja::DisassemblySettings* settings,
+		BNOperatorPrecedence precedence, bool statement);
+	virtual void GetExpr_CONST_PTR(const BinaryNinja::HighLevelILInstruction& instr,
+		BinaryNinja::HighLevelILTokenEmitter& tokens, BinaryNinja::DisassemblySettings* settings,
+		BNOperatorPrecedence precedence, bool statement);
+	virtual void GetExpr_IMPORT(const BinaryNinja::HighLevelILInstruction& instr,
+		BinaryNinja::HighLevelILTokenEmitter& tokens, BinaryNinja::DisassemblySettings* settings,
+		BNOperatorPrecedence precedence, bool statement);
+
 public:
 	PseudoCFunction(BinaryNinja::LanguageRepresentationFunctionType* type, BinaryNinja::Architecture* arch,
 		BinaryNinja::Function* owner, BinaryNinja::HighLevelILFunction* highLevelILFunction);
@@ -66,4 +76,7 @@ public:
 	PseudoCFunctionType();
 	BinaryNinja::Ref<BinaryNinja::LanguageRepresentationFunction> Create(BinaryNinja::Architecture* arch,
 		BinaryNinja::Function* owner, BinaryNinja::HighLevelILFunction* highLevelILFunction) override;
+
+protected:
+	PseudoCFunctionType(const std::string& name);
 };