From 26ffaf45d40908c37bf73e5da1c38c1d7749c5ae Mon Sep 17 00:00:00 2001
From: cosmonaut <evan@moonside.games>
Date: Wed, 21 Apr 2021 21:38:58 -0700
Subject: [PATCH] fix function argument + add _ptr suffix

---
 compiler.c | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/compiler.c b/compiler.c
index b5e42b3..05b2c2b 100644
--- a/compiler.c
+++ b/compiler.c
@@ -251,12 +251,15 @@ static void AddStructVariables(
         {
             for (j = 0; j < structTypeFieldDeclarations[i].fieldCount; j += 1)
             {
+                char *ptrName = strdup(structTypeFieldDeclarations[i].fields[j].name);
+                strcat(ptrName, "_ptr");
                 LLVMValueRef elementPointer = LLVMBuildStructGEP(
                     builder,
                     structPointer,
                     structTypeFieldDeclarations[i].fields[j].index,
-                    structTypeFieldDeclarations[i].fields[j].name
+                    ptrName
                 );
+                free(ptrName);
 
                 AddLocalVariable(
                     scope,
@@ -466,18 +469,23 @@ static void CompileAssignment(LLVMValueRef wStructValue, LLVMBuilderRef builder,
 
 static void CompileFunctionVariableDeclaration(LLVMBuilderRef builder, Node *variableDeclaration)
 {
-    char *variableName = variableDeclaration->children[1]->value.string;
     LLVMValueRef variable;
+    char *variableName = variableDeclaration->children[1]->value.string;
+    char *ptrName = strdup(variableName);
+    strcat(ptrName, "_ptr");
+
     if (variableDeclaration->children[0]->type == CustomType)
     {
         char *customTypeName = variableDeclaration->children[0]->children[0]->value.string;
-        variable = LLVMBuildAlloca(builder, LookupCustomType(customTypeName), variableName);
+        variable = LLVMBuildAlloca(builder, LookupCustomType(customTypeName), ptrName);
     }
     else
     {
-        variable = LLVMBuildAlloca(builder, WraithTypeToLLVMType(variableDeclaration->children[0]->type), variableName);
+        variable = LLVMBuildAlloca(builder, WraithTypeToLLVMType(variableDeclaration->children[0]->type), ptrName);
     }
 
+    free(ptrName);
+
     AddLocalVariable(scope, variable, variableName);
 }
 
@@ -543,8 +551,12 @@ static void CompileFunction(
 
     for (i = 0; i < functionSignature->children[2]->childCount; i += 1)
     {
+        char *ptrName = strdup(functionSignature->children[2]->children[i]->children[1]->value.string);
+        strcat(ptrName, "_ptr");
         LLVMValueRef argument = LLVMGetParam(function, i + 1);
-        LLVMValueRef argumentCopy = LLVMBuildAlloca(builder, LLVMTypeOf(argument), functionSignature->children[2]->children[i]->children[1]->value.string);
+        LLVMValueRef argumentCopy = LLVMBuildAlloca(builder, LLVMTypeOf(argument), ptrName);
+        LLVMBuildStore(builder, argument, argumentCopy);
+        free(ptrName);
         AddLocalVariable(scope, argumentCopy, functionSignature->children[2]->children[i]->children[1]->value.string);
     }