Implement the translator code in C/C++

.gitignore

@@ -1,10 +1,11 @@
 .swp
 .gch
-
 /build
 /.idea
 /deps
 
 tmp/*
 !tmp/.gitkeep
 node_modules/
+
+libs/evm2wasm/gadgets.c

CMakeLists.txt

@@ -7,11 +7,19 @@ set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_STANDARD_REQUIRED True)
 set(CMAKE_CXX_EXTENSIONS Off)
 
-add_compile_options(-Wall -Wextra -Wconversion -Wno-sign-conversion -Wno-unknown-pragmas)
-
 project(evm2wasm)
 
 include(ProjectBinaryen)
 
-add_subdirectory(libs)
-add_subdirectory(tools)
+add_custom_target(gen_gadgets
+	${PROJECT_SOURCE_DIR}/gen_gadgets.sh
+	WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
+)
+
+add_executable(evm2wasm
+    evm2wasm.cpp
+    evm2wast.c
+		gadgets.c
+)
+add_dependencies(evm2wasm gen_gadgets)
+target_link_libraries(evm2wasm PRIVATE binaryen::binaryen)

libs/evm2wasm/CMakeLists.txt

@@ -1,9 +1,19 @@
 set(include_dir ${PROJECT_SOURCE_DIR}/include)
 
+add_custom_target(gen_gadgets
+    ${CMAKE_CURRENT_SOURCE_DIR}/gen_gadgets.sh
+    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+    BYPRODUCTS ${CMAKE_CURRENT_SOURCE_DIR}/gadgets.c
+)
+
 add_library(libevm2wasm
     evm2wasm.cpp ${include_dir}/evm2wasm.h
+    evm2wast.c
+    gadgets.c
 )
 set_target_properties(libevm2wasm PROPERTIES OUTPUT_NAME evm2wasm)
 
+add_dependencies(libevm2wasm gen_gadgets)
+
 target_include_directories(libevm2wasm PUBLIC ${include_dir})
 target_link_libraries(libevm2wasm PRIVATE binaryen::binaryen)

libs/evm2wasm/evm2wasm.cpp

@@ -4,6 +4,10 @@
 #include <wasm-s-parser.h>
 #include <wasm-validator.h>
 
+#include "evm2wast.h"
+
+#include "evm2wast.h"
+
 using namespace std;
 
 namespace {
@@ -48,14 +52,18 @@ string wast2wasm(const string& input, bool debug = false) {
   return output.str();
 }
 
-string evm2wast(const string& input) {
-  (void)input;
-  // FIXME: do evm magic here
-  return "(module (export \"main\" (func $main)) (func $main))";
+string evm2wast_wrapper(string input) {
+  size_t len = 0;
+  char *output = NULL;
+  if (evm2wast(input.c_str(), input.size(), &output, &len) < 0)
+    return string();
+  string ret(output, output + len);
+  free(output);
+  return ret;
 }
 
 }
 
 string evm2wasm(const string& input) {
-  return wast2wasm(evm2wast(input));
+  return wast2wasm(evm2wast_wrapper(input), true);
 }