Fix passing of UINT_MAX and ULONG_MAX from C++ to JS function. LLVM doesn't have u32 type, so UINT_MAX literal comes out as 'i32 -1' literal to JS, which whould treat it as a negative -1.0 double.

2 files changed, 6 insertions, 3 deletions

diff --git a/src/embind/embind.js b/src/embind/embind.js
index ccce9f19..1a2cec44 100755
--- a/src/embind/embind.js
+++ b/src/embind/embind.js
@@ -225,7 +225,10 @@ function __embind_register_bool(rawType, name, trueValue, falseValue) {
 // [minRange, maxRange], inclusive.
 function __embind_register_integer(primitiveType, name, minRange, maxRange) {
     name = Pointer_stringify(name);
-    registerType(rawType, {
+    if (maxRange == -1) { // LLVM doesn't have signed and unsigned 32-bit types, so u32 literals come out as 'i32 -1'. Always treat those as max u32.
+        maxRange = 4294967295;
+    }
+    registerType(primitiveType, {
         name: name,
         minRange: minRange,
         maxRange: maxRange,
diff --git a/system/include/emscripten/bind.h b/system/include/emscripten/bind.h
index b30cf54b..211c67c0 100755
--- a/system/include/emscripten/bind.h
+++ b/system/include/emscripten/bind.h
@@ -40,8 +40,8 @@ namespace emscripten {
             void _embind_register_integer(
                 TYPEID integerType,
                 const char* name,
-                int minRange,
-                int maxRange);
+                long minRange,
+                unsigned long maxRange);
 
             void _embind_register_float(
                 TYPEID floatType,