Commit 823d1e7087

@@ -224,6 +224,16 @@ else
         .vtable = &PageAllocator.vtable,
     };
 
+/// This allocator is fast, small, and specific to WebAssembly. In the future,
+/// this will be the implementation automatically selected by
+/// `GeneralPurposeAllocator` when compiling in `ReleaseSmall` mode for wasm32
+/// and wasm64 architectures.
+/// Until then, it is available here to play with.
+pub const wasm_allocator = Allocator{
+    .ptr = undefined,
+    .vtable = &std.heap.WasmAllocator.vtable,
+};
+
 /// Verifies that the adjusted length will still map to the full length
 pub fn alignPageAllocLen(full_len: usize, len: usize) usize {
     const aligned_len = mem.alignAllocLen(full_len, len);

@@ -155,10 +155,7 @@ pub fn main() anyerror!void {
     const use_gpa = (build_options.force_gpa or !builtin.link_libc) and builtin.os.tag != .wasi;
     const gpa = gpa: {
         if (builtin.os.tag == .wasi) {
-            break :gpa Allocator{
-                .ptr = undefined,
-                .vtable = &std.heap.WasmAllocator.vtable,
-            };
+            break :gpa std.heap.wasm_allocator;
         }
         if (use_gpa) {
             break :gpa general_purpose_allocator.allocator();