feat: compile source files with configurable IR output

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

2 files changed, 6 insertions, 1 deletions

diff --git a/include/cps/CodeGen.h b/include/cps/CodeGen.h
index 97765f0..ae2f015 100644
--- a/include/cps/CodeGen.h
+++ b/include/cps/CodeGen.h
@@ -95,7 +95,7 @@ public:
     CodeGen();
     ~CodeGen();
     void compile(const std::vector<std::unique_ptr<StmtAST>> &Statements);
-    void print();
+    void print(llvm::raw_ostream &Output);
     bool hadError() const { return HadError; }
     void reportError(const char *Fmt, ...);
     static bool isBuiltinName(const std::string &Name);
diff --git a/include/cps/Lexer.h b/include/cps/Lexer.h
index 2af0260..d83e808 100644
--- a/include/cps/Lexer.h
+++ b/include/cps/Lexer.h
@@ -1,4 +1,5 @@
 #pragma once
+#include <istream>
 #include <string>
 #include <cstdint>
 
@@ -87,9 +88,13 @@ enum Token {
 };
 
 class Lexer {
+    std::istream &Input;
+    int LastChar = ' ';
     int CurrentLine = 1;
     bool HadError = false;
 public:
+    explicit Lexer(std::istream &Input) : Input(Input) {}
+
     std::string IdentifierStr;
     std::string StringVal;
     int64_t NumVal;