Fix dockerfile (hopefully)

Add dummy --json stats output to tests

Comment typos fixed

Add make get-v8, build-v8 and build-v8-dev make targets

src/runtime/js.zig

@@ -129,7 +129,6 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
             var prototype_index = i;
             const Struct = @field(types, s.name);
             if (@hasDecl(Struct, "prototype")) {
-                prototype_index = 1;
                 const TI = @typeInfo(Struct.prototype);
                 const proto_name = @typeName(Receiver(TI.pointer.child));
                 prototype_index = @field(TYPE_LOOKUP, proto_name);
@@ -776,8 +775,8 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
             scope_arena: ArenaAllocator,
 
             // When we need to load a resource (i.e. an external script), we call
-            // this function to get the source. This is always a refernece to the
-            // Browser Session's fetchModuleSource, but we use a funciton pointer
+            // this function to get the source. This is always a reference to the
+            // Browser Session's fetchModuleSource, but we use a function pointer
             // since this js module is decoupled from the browser implementation.
             module_loader: ModuleLoader,
 
@@ -931,7 +930,7 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
 
             // To turn a Zig instance into a v8 object, we need to do a number of things.
             // First, if it's a struct, we need to put it on the heap
-            // Second, if we've alrady returned this instance, we should return
+            // Second, if we've already returned this instance, we should return
             // the same object. Hence, our executor maintains a map of Zig objects
             // to v8.PersistentObject (the "identity_map").
             // Finally, if this is the first time we've seen this instance, we need to:

src/test_runner.zig

@@ -46,6 +46,19 @@ pub fn main() !void {
     var slowest = SlowTracker.init(allocator, 5);
     defer slowest.deinit();
 
+    var args = try std.process.argsWithAllocator(allocator);
+    defer args.deinit();
+
+    // ignore the exec name.
+    _ = args.next();
+    var json_stats = false;
+    while (args.next()) |arg| {
+        if (std.mem.eql(u8, "--json", arg)) {
+            json_stats = true;
+            continue;
+        }
+    }
+
     var pass: usize = 0;
     var fail: usize = 0;
     var skip: usize = 0;
@@ -155,6 +168,37 @@ pub fn main() !void {
     printer.fmt("\n", .{});
     try slowest.display(printer);
     printer.fmt("\n", .{});
+
+    // TODO: at the very least, `browser` should return real stats
+    if (json_stats) {
+        try std.json.stringify(&.{
+            .{ .name = "browser", .bench = .{
+                .duration = 3180096049,
+                .alloc_nb = 6,
+                .realloc_nb = 278,
+                .alloc_size = 24711226,
+            } },
+            .{ .name = "libdom", .bench = .{
+                .duration = 3180096049,
+                .alloc_nb = 0,
+                .realloc_nb = 0,
+                .alloc_size = 0,
+            } },
+            .{ .name = "v8", .bench = .{
+                .duration = 3180096049,
+                .alloc_nb = 0,
+                .realloc_nb = 0,
+                .alloc_size = 0,
+            } },
+            .{ .name = "main", .bench = .{
+                .duration = 3180096049,
+                .alloc_nb = 0,
+                .realloc_nb = 0,
+                .alloc_size = 0,
+            } },
+        }, .{ .whitespace = .indent_2 }, std.io.getStdOut().writer());
+    }
+
     std.posix.exit(if (fail == 0) 0 else 1);
 }