[Memory64] embind / safe heap JS changes for 64-bit

Author: aardappel

src/embind/embind.js

@@ -405,6 +405,7 @@ var LibraryEmbind = {
   },
 
   $heap32VectorToArray: function(count, firstElement) {
+    {{{ from64('firstElement') }}}
     var array = [];
     for (var i = 0; i < count; i++) {
         array.push(HEAP32[(firstElement >> 2) + i]);
@@ -476,6 +477,7 @@ var LibraryEmbind = {
 
   $getShiftFromSize__deps: [],
   $getShiftFromSize: function(size) {
+    {{{ from64('size') }}}
     switch (size) {
         case 1: return 0;
         case 2: return 1;
@@ -874,6 +876,10 @@ var LibraryEmbind = {
         Uint32Array,
         Float32Array,
         Float64Array,
+#if WASM_BIGINT
+        BigInt64Array,
+        BigUint64Array,
+#endif
     ];
 
     var TA = typeMapping[dataTypeIndex];

src/runtime_safe_heap.js

@@ -14,7 +14,7 @@
     @param {number|boolean=} noSafe */
 function setValue(ptr, value, type, noSafe) {
   type = type || 'i8';
-  if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit
+  if (type.charAt(type.length-1) === '*') type = '{{{ POINTER_TYPE }}}';
 #if SAFE_HEAP
   if (noSafe) {
     switch (type) {
@@ -49,7 +49,7 @@ function setValue(ptr, value, type, noSafe) {
     @param {number|boolean=} noSafe */
 function getValue(ptr, type, noSafe) {
   type = type || 'i8';
-  if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit
+  if (type.charAt(type.length-1) === '*') type = '{{{ POINTER_TYPE }}}';
 #if SAFE_HEAP
   if (noSafe) {
     switch (type) {
@@ -89,7 +89,7 @@ function getSafeHeapType(bytes, isFloat) {
     case 1: return 'i8';
     case 2: return 'i16';
     case 4: return isFloat ? 'float' : 'i32';
-    case 8: return 'double';
+    case 8: return isFloat ? 'double' : 'i64';
     default: assert(0);
   }
 }