Add wast2wasm tool

include/evm2wasm.h

@@ -2,4 +2,5 @@
 
 #include <string>
 
+std::string wast2wasm(const std::string& input, bool debug = false);
 std::string evm2wasm(const std::string& input);

libs/evm2wasm/evm2wasm.cpp

@@ -6,9 +6,7 @@
 
 using namespace std;
 
-namespace {
-
-string wast2wasm(const string& input, bool debug = false) {
+string wast2wasm(const string& input, bool debug) {
   wasm::Module module;
 
   try {
@@ -48,6 +46,8 @@ string wast2wasm(const string& input, bool debug = false) {
   return output.str();
 }
 
+namespace {
+
 string evm2wast(const string& input) {
   (void)input;
   // FIXME: do evm magic here

tools/CMakeLists.txt

@@ -1 +1,2 @@
-add_subdirectory(evm2wasm)
+add_subdirectory(evm2wasm)
+add_subdirectory(wast2wasm)

tools/wast2wasm/CMakeLists.txt

@@ -0,0 +1,2 @@
+add_executable(wast2wasm main.cpp)
+target_link_libraries(wast2wasm PRIVATE libevm2wasm)

tools/wast2wasm/main.cpp

@@ -0,0 +1,35 @@
+#include <string>
+#include <iostream>
+#include <fstream>
+#include <streambuf>
+
+#include <evm2wasm.h>
+
+using namespace std;
+
+int main(int argc, char **argv) {
+    (void)argc;
+    (void)argv;
+
+    string input;
+    while (!cin.eof())
+    {
+        string tmp;
+        // NOTE: this will read until EOF or NL
+        getline(cin, tmp);
+        input.append(tmp);
+        input.append("\n");
+    }
+
+    if (!input.size())
+        return 1;
+
+    string output = wast2wasm(input);
+
+    if (!output.size())
+        return 1;
+
+    cout << output << endl;
+
+    return 0;
+}