6 files changed, 16 insertions, 12 deletions
diff --git a/include/cps/ArrayHandler.h b/include/cps/ArrayHandler.h
index 734f464..1ee91db 100644
--- a/include/cps/ArrayHandler.h
+++ b/include/cps/ArrayHandler.h
@@ -24,7 +24,7 @@ class ArrayHandler {
     llvm::LLVMContext *TheContext;
     llvm::IRBuilder<> *Builder;
     llvm::Module *TheModule;
-    std::map<std::string, llvm::AllocaInst*> *NamedValues;
+    std::map<std::string, llvm::Value*> *NamedValues;
 
     std::map<std::string, ArrayMetadata> ArrayTable;
     RuntimeCheck &RuntimeChecker;
@@ -37,13 +37,13 @@ class ArrayHandler {
     void emitPrintLoop(const std::string &Name, int CurrentDim, std::vector<llvm::Value*> CurrentIndices, llvm::FunctionCallee PrintfFunc, llvm::Value* FmtStr);
 
 public:
-    ArrayHandler(llvm::LLVMContext &C, llvm::IRBuilder<> &B, llvm::Module &M, std::map<std::string, llvm::AllocaInst*> &NV);
+    ArrayHandler(llvm::LLVMContext &C, llvm::IRBuilder<> &B, llvm::Module &M, std::map<std::string, llvm::Value*> &NV);
 
     void setupExternalFunctions();
     
     void emitArrayDeclare(ArrayDeclareStmtAST *Stmt, CodeGen &CG);
     void emitArrayAssign(ArrayAssignStmtAST *Stmt, CodeGen &CG);
-    ArrayHandler(llvm::LLVMContext &C, llvm::IRBuilder<> &B, llvm::Module &M, std::map<std::string, llvm::AllocaInst*> &NV, RuntimeCheck &RC);
+    ArrayHandler(llvm::LLVMContext &C, llvm::IRBuilder<> &B, llvm::Module &M, std::map<std::string, llvm::Value*> &NV, RuntimeCheck &RC);
     
     llvm::Value* emitArrayAccess(ArrayAccessExprAST *Expr, CodeGen &CG);
 
diff --git a/include/cps/CodeGen.h b/include/cps/CodeGen.h
index 832ba7a..85f605f 100644
--- a/include/cps/CodeGen.h
+++ b/include/cps/CodeGen.h
@@ -16,7 +16,7 @@ class CodeGen {
     std::unique_ptr<llvm::LLVMContext> TheContext;
     std::unique_ptr<llvm::Module> TheModule;
     std::unique_ptr<llvm::IRBuilder<>> Builder;
-    std::map<std::string, llvm::AllocaInst*> NamedValues;
+    std::map<std::string, llvm::Value*> NamedValues;
     
     std::unique_ptr<ArrayHandler> Arrays;
     std::unique_ptr<RuntimeCheck> RuntimeChecker;
diff --git a/include/cps/FunctionAST.h b/include/cps/FunctionAST.h
index 155bd8c..5b4da6c 100644
--- a/include/cps/FunctionAST.h
+++ b/include/cps/FunctionAST.h
@@ -3,24 +3,25 @@
 #include <vector>
 #include <string>
 #include <memory>
+#include <tuple>
 
 namespace cps {
 
 class PrototypeAST {
     std::string Name;
-    std::vector<std::pair<std::string, std::string>> Args;
+    std::vector<std::tuple<std::string, std::string, bool>> Args;
     std::string ReturnType;
     bool IsExternal;
 
 public:
     PrototypeAST(const std::string &Name, 
-                 std::vector<std::pair<std::string, std::string>> Args, 
+                 std::vector<std::tuple<std::string, std::string, bool>> Args, 
                  const std::string &ReturnType,
                  bool IsExternal = false)
         : Name(Name), Args(std::move(Args)), ReturnType(ReturnType), IsExternal(IsExternal) {}
 
     const std::string &getName() const { return Name; }
-    const std::vector<std::pair<std::string, std::string>> &getArgs() const { return Args; }
+    const std::vector<std::tuple<std::string, std::string, bool>> &getArgs() const { return Args; }
     const std::string &getReturnType() const { return ReturnType; }
     bool isExternal() const { return IsExternal; }
 };
diff --git a/include/cps/FunctionGen.h b/include/cps/FunctionGen.h
index c1a6ebd..84a2858 100644
--- a/include/cps/FunctionGen.h
+++ b/include/cps/FunctionGen.h
@@ -6,6 +6,7 @@
 #include <vector>
 #include <functional>
 #include <string>
+#include <tuple>
 
 namespace cps {
 
@@ -14,13 +15,13 @@ class FunctionGen {
     llvm::Module &Module;
     llvm::IRBuilder<> &Builder;
     
-    std::map<std::string, llvm::AllocaInst*> &NamedValues;
+    std::map<std::string, llvm::Value*> &NamedValues;
 
-    void createArgumentAllocas(llvm::Function *F, const std::vector<std::pair<std::string, std::string>> &Args);
+    void createArgumentAllocas(llvm::Function *F, const std::vector<std::tuple<std::string, std::string, bool>> &Args);
 
 public:
     FunctionGen(llvm::LLVMContext &C, llvm::Module &M, llvm::IRBuilder<> &B, 
-                std::map<std::string, llvm::AllocaInst*> &NV)
+                std::map<std::string, llvm::Value*> &NV)
         : Context(C), Module(M), Builder(B), NamedValues(NV) {}
 
     llvm::Type *getLLVMType(const std::string &TypeName);
diff --git a/include/cps/Lexer.h b/include/cps/Lexer.h
index cd34435..4226cc3 100644
--- a/include/cps/Lexer.h
+++ b/include/cps/Lexer.h
@@ -49,7 +49,9 @@ enum Token {
     tok_returns = -403,
     tok_procedure = -404, 
     tok_endprocedure = -405, 
-    tok_call = -406  
+    tok_call = -406,
+    tok_byref = -407,
+    tok_byval = -408
 };
 
 class Lexer {
diff --git a/include/cps/Parser.h b/include/cps/Parser.h
index f328141..2a9c98a 100644
--- a/include/cps/Parser.h
+++ b/include/cps/Parser.h
@@ -36,7 +36,7 @@ class Parser {
     std::unique_ptr<StmtAST> ParseProcedure();
     std::unique_ptr<StmtAST> ParseCallStmt();
     std::unique_ptr<StmtAST> ParseReturnStmt();
-    std::vector<std::pair<std::string, std::string>> ParsePrototypeArgs();
+    std::vector<std::tuple<std::string, std::string, bool>> ParsePrototypeArgs();
     
 public:
     Parser(Lexer &L);