Tidy up code conventions in Stack module

src/stack.zig

@@ -1,17 +1,6 @@
 const io = @import("./io.zig");
 const std = @import("std");
 
-///
-/// Potential errors that may occur while trying to push one or more elements into a stack of a
-/// known maximum size.
-///
-/// [FinitePushError.Overflow] is returned if the stack does not have sufficient capacity to hold a
-/// given set of elements.
-///
-pub const FixedPushError = error {
-    Overflow,
-};
-
 pub fn Fixed(comptime Element: type) type {
     return struct {
         filled: usize = 0,
@@ -24,7 +13,7 @@ pub fn Fixed(comptime Element: type) type {
         ///
         /// Note that this will raise a compilation error if [Element] is not `u8`.
         ///
-        pub fn asWriter(self: *Self) io.Writer {
+        pub fn writer(self: *Self) io.Writer {
             if (Element != u8) @compileError("Cannot coerce fixed stack of type " ++
                 @typeName(Element) ++ " into a Writer");
 
@@ -91,6 +80,17 @@ pub fn Fixed(comptime Element: type) type {
     };
 }
 
+///
+/// Potential errors that may occur while trying to push one or more elements into a stack of a
+/// known maximum size.
+///
+/// [FinitePushError.Overflow] is returned if the stack does not have sufficient capacity to hold a
+/// given set of elements.
+///
+pub const FixedPushError = error {
+    Overflow,
+};
+
 test "fixed stack" {
     const testing = @import("std").testing;
     const expectError = testing.expectError;
@@ -112,7 +112,7 @@ test "fixed stack" {
 
     try expectEqual(stack.count(), 0);
 
-    const writer = stack.asWriter();
+    const writer = stack.writer();
 
     try expectEqual(writer.write(&.{0, 0, 0, 0}), 4);
     try expectEqual(writer.writeByte(0), false);