From 10c81963527f6afcf15908c064acda694f534ec7 Mon Sep 17 00:00:00 2001
From: EinBurgbauer <einburgbauer@outlook.com>
Date: Thu, 20 May 2021 17:19:18 +0200
Subject: [PATCH] fixed thiscall compile crash now hopefully

---
 IDEHelper/Compiler/BfResolvedTypeUtils.cpp |  5 ++---
 IDEHelper/Tests/src/Functions.bf           | 16 ++++++++++++++++
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/IDEHelper/Compiler/BfResolvedTypeUtils.cpp b/IDEHelper/Compiler/BfResolvedTypeUtils.cpp
index c38c5c8f..27f74558 100644
--- a/IDEHelper/Compiler/BfResolvedTypeUtils.cpp
+++ b/IDEHelper/Compiler/BfResolvedTypeUtils.cpp
@@ -1227,8 +1227,7 @@ void BfMethodInstance::GetIRFunctionInfo(BfModule* module, BfIRType& returnType,
 				{
 					checkType = GetParamType(0);
 
-					//TODO(BCF): Breaks tests
-					//hasExplicitThis = true;
+					hasExplicitThis = true;
 				}
 				else
 					checkType = GetOwner();				
@@ -1236,7 +1235,7 @@ void BfMethodInstance::GetIRFunctionInfo(BfModule* module, BfIRType& returnType,
 		}
 		else
 		{
-			if (hasExplicitThis)
+			if (hasExplicitThis && paramIdx == 0)
 			{
 				// We already looked at this
 				hasExplicitThis = false;
diff --git a/IDEHelper/Tests/src/Functions.bf b/IDEHelper/Tests/src/Functions.bf
index 7228b7c3..a174bdd6 100644
--- a/IDEHelper/Tests/src/Functions.bf
+++ b/IDEHelper/Tests/src/Functions.bf
@@ -130,6 +130,22 @@ namespace Tests
 			}
 		}
 
+		[CRepr]
+		struct StructCRepr
+		{
+			public int32 something = 1;
+
+			bool Run() => something == 1;
+
+			public static void Test()
+			{
+				StructCRepr sc = .();
+				function bool(StructCRepr this) func = => Run;
+
+				Test.Assert(func(sc));
+			}
+		}
+
 		public static int UseFunc0<T>(function int (T this, float f) func, T a, float b)
 		{
 			return func(a, b);