From 117e0210c81197302604a3ce7570c29e9470faf1 Mon Sep 17 00:00:00 2001
From: Brett Laptop <tri11paragon@tpgc.me>
Date: Wed, 22 Nov 2023 17:26:19 -0500
Subject: [PATCH] blt is broken

---
 CMakeLists.txt          |  6 ++---
 include/bf_tokenizer.h  | 10 ++++++++
 src/bf_interpreter.cpp  | 53 ++++++++++++++++++++++++++++++++++++++++-
 src/bf_mips_codegen.cpp |  4 ----
 src/main.cpp            | 11 +++++++++
 5 files changed, 76 insertions(+), 8 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a41103c..3a4eb30 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,9 +7,9 @@ option(ENABLE_TSAN "Enable the thread data race sanitizer" OFF)
 
 set(CMAKE_CXX_STANDARD 20)
 
-option(BUILD_PROFILING OFF)
-option(BUILD_NBT OFF)
-option(BUILD_PARSE OFF)
+option(BUILD_PROFILING ON)
+option(BUILD_NBT ON)
+option(BUILD_PARSE ON)
 add_subdirectory(libraries/BLT)
 
 include_directories(include/)
diff --git a/include/bf_tokenizer.h b/include/bf_tokenizer.h
index a89e02c..1d2a31d 100644
--- a/include/bf_tokenizer.h
+++ b/include/bf_tokenizer.h
@@ -50,6 +50,12 @@ class bf_tokenizer
         {
             tokenize(program);
             bf_name();
+            if (hasNext()){
+                // skip past comments
+                if (peek().type == bf_token::OPEN)
+                    while (hasNext() && peek().type != bf_token::CLOSE)
+                        advance();
+            }
         }
         
         inline bool hasNext(){
@@ -68,6 +74,10 @@ class bf_tokenizer
             return tokens[currentIndex];
         }
         
+        inline std::vector<token_t>& data(){
+            return tokens;
+        }
+        
         void print(size_t index);
         inline void print(){
             print(currentIndex);
diff --git a/src/bf_interpreter.cpp b/src/bf_interpreter.cpp
index bdf614d..4d4fbbc 100644
--- a/src/bf_interpreter.cpp
+++ b/src/bf_interpreter.cpp
@@ -20,6 +20,20 @@ static inline void match(functor f, int sp, size_t& index, const std::string& pr
     }
 }
 
+template<typename functor>
+static inline void match(functor f, int sp, size_t& index, const std::vector<token_t>& program)
+{
+    while (f(index) < program.size())
+    {
+        if (program[index].type == bf_token::OPEN)
+            sp++;
+        if (program[index].type == bf_token::CLOSE)
+            sp--;
+        if (sp == 0)
+            break;
+    }
+}
+
 void interpret_bf(const std::string& program)
 {
     brainfuck_interpreter fuck;
@@ -65,7 +79,44 @@ void interpret_bf(const std::string& program)
 
 void interpret_bf(bf_tokenizer& tokenizer)
 {
-
+    brainfuck_interpreter fuck;
+    auto& tokens = tokenizer.data();
+    
+    size_t index = 0;
+    while (index < tokens.size())
+    {
+        auto c = tokens[index];
+        switch (c.type)
+        {
+            case bf_token::INC_DP:
+                fuck.increment_dp(c.offset);
+                break;
+            case bf_token::DEC_DP:
+                fuck.decrement_dp(c.offset);
+                break;
+            case bf_token::INC_DV:
+                fuck.increment(static_cast<int8_t>(c.offset));
+                break;
+            case bf_token::DEC_DV:
+                fuck.decrement(static_cast<int8_t>(c.offset));
+                break;
+            case bf_token::PRINT:
+                fuck.print(std::cout);
+                break;
+            case bf_token::READ:
+                fuck.read(std::cin);
+                break;
+            case bf_token::OPEN:
+                if (fuck.is() == 0)
+                    match([](size_t& idx) { return ++idx; }, 1, index, tokens);
+                break;
+            case bf_token::CLOSE:
+                if (fuck.is() != 0)
+                    match([](size_t& idx) { return --idx; }, -1, index, tokens);
+                break;
+        }
+        index++;
+    }
 }
 
 void brainfuck_interpreter::check_size()
diff --git a/src/bf_mips_codegen.cpp b/src/bf_mips_codegen.cpp
index 1a0df4b..fcc6c73 100644
--- a/src/bf_mips_codegen.cpp
+++ b/src/bf_mips_codegen.cpp
@@ -29,10 +29,6 @@ void codegen(bf_tokenizer& tokenizer, std::ostream& out)
     out << preamble;
     if (!tokenizer.hasNext())
         throw std::runtime_error("You failed to provide valid BF code");
-    // skip past comments
-    if (tokenizer.peek().type == bf_token::OPEN)
-        while (tokenizer.hasNext() && tokenizer.peek().type != bf_token::CLOSE)
-            tokenizer.advance();
     
     tokenizer.print();
     
diff --git a/src/main.cpp b/src/main.cpp
index 1e89b75..c49b053 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -6,6 +6,7 @@
 
 #include <bf_mips_codegen.h>
 #include <bf_interpreter.h>
+#include <blt/profiling/profiler_v2.h>
 
 int main(int argc, const char** argv)
 {
@@ -19,6 +20,16 @@ int main(int argc, const char** argv)
     bf_tokenizer tokenizer(program);
     codegen(tokenizer, out);
     
+    BLT_START_INTERVAL("Interpreters", "Basic");
+    interpret_bf(program);
+    BLT_END_INTERVAL("Interpreters", "Basic");
+    
+    BLT_START_INTERVAL("Interpreters", "Tokens");
+    interpret_bf(tokenizer);
+    BLT_END_INTERVAL("Interpreters", "Tokens");
+    
+    BLT_PRINT_PROFILE("Interpreters");
+    
     //interpret_bf(program);
     
     return 0;