Don't store allocator

src/Class.zig

@@ -7,8 +7,6 @@ pub const MethodInfo = @import("Class/MethodInfo.zig");
 pub const AttributeInfo = @import("Class/AttributeInfo.zig").AttributeInfo;
 pub const ConstantPool = @import("Class/ConstantPool.zig");
 
-allocator: std.mem.Allocator,
-
 magic: u32,
 minor_version: u16,
 major_version: u16,
@@ -57,7 +55,7 @@ pub fn parse(input: *std.Io.Reader, allocator: std.mem.Allocator) (ParseError ||
     var constant_pool: ConstantPool = try .parse(input, allocator);
     errdefer constant_pool.deinit(allocator);
 
-    const access_flags: ClassAccessFlags = .{ .mask = try input.takeInt(u16, .big) };
+    const access_flags: ClassAccessFlags = .from(try input.takeInt(u16, .big));
 
     const this_class = try input.takeInt(u16, .big);
     const super_class = try input.takeInt(u16, .big);
@@ -90,7 +88,6 @@ pub fn parse(input: *std.Io.Reader, allocator: std.mem.Allocator) (ParseError ||
     }
 
     return .{
-        .allocator = allocator,
         .magic = magic,
         .minor_version = minor_version,
         .major_version = major_version,
@@ -153,37 +150,37 @@ pub fn parseAttributes(input: *std.Io.Reader, constant_pool: ConstantPool, alloc
     return attributes;
 }
 
-pub fn deinit(self: *Self) void {
-    self.constant_pool.deinit(self.allocator);
-    self.freeInterfaces();
-    self.freeFields();
-    self.freeMethods();
-    self.freeAttributes();
+pub fn deinit(self: *Self, allocator: std.mem.Allocator) void {
+    self.constant_pool.deinit(allocator);
+    self.freeInterfaces(allocator);
+    self.freeFields(allocator);
+    self.freeMethods(allocator);
+    self.freeAttributes(allocator);
 }
 
-fn freeInterfaces(self: *Self) void {
-    self.allocator.free(self.interfaces);
+fn freeInterfaces(self: *Self, allocator: std.mem.Allocator) void {
+    allocator.free(self.interfaces);
 }
 
-fn freeFields(self: *Self) void {
+fn freeFields(self: *Self, allocator: std.mem.Allocator) void {
     for (self.fields) |*field_info| {
-        field_info.deinit(self.allocator);
+        field_info.deinit(allocator);
     }
-    self.allocator.free(self.fields);
+    allocator.free(self.fields);
 }
 
-fn freeMethods(self: *Self) void {
+fn freeMethods(self: *Self, allocator: std.mem.Allocator) void {
     for (self.methods) |*method_info| {
-        method_info.deinit(self.allocator);
+        method_info.deinit(allocator);
     }
-    self.allocator.free(self.methods);
+    allocator.free(self.methods);
 }
 
-fn freeAttributes(self: *Self) void {
+fn freeAttributes(self: *Self, allocator: std.mem.Allocator) void {
     for (self.attributes) |*attr| {
-        attr.deinit(self.allocator);
+        attr.deinit(allocator);
     }
-    self.allocator.free(self.attributes);
+    allocator.free(self.attributes);
 }
 
 pub fn jsonStringify(self: *const Self, jws: *std.json.Stringify) !void {

src/Class/AttributeInfo.zig

@@ -625,7 +625,7 @@ pub const AttributeInfo = union(enum) {
 
                             try w.splatByteAll(' ', depth * component_indent);
                             try w.print("{d}:\n", .{ i });
-                            try component.indentedFormat(w, depth, component_indent, constant_pool);
+                            try component.indentedFormat(w, depth, component_indent + 1, constant_pool);
                         }
                     },
                     .permitted_subclasses => |attr| {
@@ -1200,7 +1200,7 @@ pub const InnerClasses = struct {
                 .inner_class_info_index = try input.takeInt(u16, .big),
                 .outer_class_info_index = try input.takeInt(u16, .big),
                 .inner_name_index = try input.takeInt(u16, .big),
-                .inner_class_access_flags = .{ .mask = try input.takeInt(u16, .big) },
+                .inner_class_access_flags = .from(try input.takeInt(u16, .big)),
             };
         }
 
@@ -2491,7 +2491,7 @@ pub const MethodParameters = struct {
         for (parameters) |*parameter| {
             parameter.* = .{
                 .name_index = try input.takeInt(u16, .big),
-                .access_flags = .{ .mask = try input.takeInt(u16, .big) },
+                .access_flags = .from(try input.takeInt(u16, .big)),
             };
         }
 
@@ -2695,7 +2695,7 @@ pub const Module = struct {
 
     pub fn parse(input: *std.Io.Reader, allocator: std.mem.Allocator) ParseError!Self {
         const module_name_index = try input.takeInt(u16, .big);
-        const module_flags: ModuleFlags = .{ .mask = try input.takeInt(u16, .big) };
+        const module_flags: ModuleFlags = .from(try input.takeInt(u16, .big));
         const module_version_index = try input.takeInt(u16, .big);
 
         const requires_count = try input.takeInt(u16, .big);
@@ -2703,7 +2703,7 @@ pub const Module = struct {
         errdefer allocator.free(requires);
         for (requires) |*r| {
             const requires_index = try input.takeInt(u16, .big);
-            const requires_flags: Requires.RequiresFlags = .{ .mask = try input.takeInt(u16, .big) };
+            const requires_flags: Requires.RequiresFlags = .from(try input.takeInt(u16, .big));
             const requires_version_index = try input.takeInt(u16, .big);
             r.* = .{
                 .requires_index = requires_index,
@@ -2717,7 +2717,7 @@ pub const Module = struct {
         errdefer allocator.free(exports);
         for (exports) |*e| {
             const exports_index = try input.takeInt(u16, .big);
-            const exports_flags: Exports.ExportsFlags = .{ .mask = try input.takeInt(u16, .big) };
+            const exports_flags: Exports.ExportsFlags = .from(try input.takeInt(u16, .big));
             const exports_to_count = try input.takeInt(u16, .big);
             const exports_to_indeces = try allocator.alloc(u16, exports_to_count);
             errdefer allocator.free(exports_to_indeces);
@@ -2736,7 +2736,7 @@ pub const Module = struct {
         errdefer allocator.free(opens);
         for (opens) |*o| {
             const opens_index = try input.takeInt(u16, .big);
-            const opens_flags: Opens.OpensFlags = .{ .mask = try input.takeInt(u16, .big) };
+            const opens_flags: Opens.OpensFlags = .from(try input.takeInt(u16, .big));
             const opens_to_count = try input.takeInt(u16, .big);
             const opens_to_indeces = try allocator.alloc(u16, opens_to_count);
             errdefer allocator.free(opens_to_indeces);

src/Class/FieldInfo.zig

@@ -27,7 +27,7 @@ pub const FieldAccessFlags = EnumFlags(enum(u16) {
 });
 
 pub fn parse(input: *std.Io.Reader, constant_pool: ConstantPool, allocator: std.mem.Allocator) !Self {
-    const access_flags: FieldAccessFlags = .{ .mask = try input.takeInt(u16, .big) };
+    const access_flags: FieldAccessFlags = .from(try input.takeInt(u16, .big));
     const name_index = try input.takeInt(u16, .big);
     const descriptor_index = try input.takeInt(u16, .big);
     const attributes = try Class.parseAttributes(input, constant_pool, allocator);

src/Class/MethodInfo.zig

@@ -30,7 +30,7 @@ pub const MethodAccessFlags = EnumFlags(enum(u16) {
 });
 
 pub fn parse(input: *std.Io.Reader, constant_pool: ConstantPool, allocator: std.mem.Allocator) !Self {
-    const access_flags: MethodAccessFlags = .{ .mask = try input.takeInt(u16, .big) };
+    const access_flags: MethodAccessFlags = .from(try input.takeInt(u16, .big));
     const name_index = try input.takeInt(u16, .big);
     const descriptor_index = try input.takeInt(u16, .big);
     const attributes = try Class.parseAttributes(input, constant_pool, allocator);

src/EnumFlags.zig

@@ -10,6 +10,12 @@ pub fn EnumFlags(comptime E: type) type {
 
         pub const empty: Self = .{ .data = 0 };
 
+        pub fn from(mask: BackingInt) Self {
+            return .{
+                .mask = mask,
+            };
+        }
+
         pub fn contains(self: Self, flag: E) bool {
             return (self.mask & @intFromEnum(flag)) != 0;
         }

src/main.zig

@@ -50,7 +50,7 @@ pub fn main(init: std.process.Init) !void {
         },
         else => return err,
     };
-    defer class.deinit();
+    defer class.deinit(allocator);
 
     try stdout.print("{f}", .{ class });
 

testsuite/classes/java/Record.java

@@ -0,0 +1,2 @@
+public record Record(String name, int age) {}
+