3 files changed, 29 insertions, 0 deletions
diff --git a/src/binaryen-c.cpp b/src/binaryen-c.cpp
index 842d96f69..36b2abbe7 100644
--- a/src/binaryen-c.cpp
+++ b/src/binaryen-c.cpp
@@ -27,6 +27,7 @@
 #include "wasm-builder.h"
 #include "wasm-interpreter.h"
 #include "wasm-printing.h"
+#include "wasm-s-parser.h"
 #include "wasm-validator.h"
 #include "cfg/Relooper.h"
 #include "shell-interface.h"
@@ -905,6 +906,23 @@ void BinaryenSetStart(BinaryenModuleRef module, BinaryenFunctionRef start) {
 // ========== Module Operations ==========
 //
 
+BinaryenModuleRef BinaryenModuleParse(const char* text) {
+  if (tracing) {
+    std::cout << "  // BinaryenModuleRead\n";
+  }
+
+  auto* wasm = new Module;
+  try {
+    SExpressionParser parser(const_cast<char*>(text));
+    Element& root = *parser.root;
+    SExpressionWasmBuilder builder(*wasm, *root[0]);
+  } catch (ParseException& p) {
+    p.dump(std::cerr);
+    Fatal() << "error in parsing wasm text";
+  }
+  return wasm;
+}
+
 void BinaryenModulePrint(BinaryenModuleRef module) {
   if (tracing) {
     std::cout << "  BinaryenModulePrint(the_module);\n";
diff --git a/src/binaryen-c.h b/src/binaryen-c.h
index 889b5ba45..90c7795f0 100644
--- a/src/binaryen-c.h
+++ b/src/binaryen-c.h
@@ -366,6 +366,9 @@ void BinaryenSetStart(BinaryenModuleRef module, BinaryenFunctionRef start);
 // ========== Module Operations ==========
 //
 
+// Parse a module in s-expression text format
+BinaryenModuleRef BinaryenModuleParse(const char* text);
+
 // Print a module to stdout. Useful for debugging.
 void BinaryenModulePrint(BinaryenModuleRef module);
 
diff --git a/src/js/binaryen.js-post.js b/src/js/binaryen.js-post.js
index 2f7defc63..9b2527fc5 100644
--- a/src/js/binaryen.js-post.js
+++ b/src/js/binaryen.js-post.js
@@ -899,6 +899,14 @@
     return new Module['Module'](ptr);
   };
 
+  Module['parseText'] = function(text) {
+    var buffer = _malloc(text.length + 1);
+    writeAsciiToMemory(text, buffer);
+    var ptr = Module['_BinaryenModuleParse'](buffer);
+    _free(buffer);
+    return new Module['Module'](ptr);
+  };
+
   Module['setAPITracing'] = function(on) {
     return Module['_BinaryenSetAPITracing'](on);
   };