feat: add storageRune.default and re-add constants codegen (#799)

.vscode/settings.json

@@ -10,7 +10,6 @@
   },
   "deno.codeLens.testArgs": ["-A", "-L=info"],
   "deno.config": "./deno.jsonc",
-  "deno.importMap": "./import_map.json",
   "deno.suggest.imports.hosts": {
     "https://deno.land": true,
     "https://x.nest.land": true,

codegen/FrameCodegen.ts

@@ -1,3 +1,4 @@
+import { hex } from "../crypto/mod.ts"
 import * as $ from "../deps/scale.ts"
 import { FrameMetadata } from "../frame_metadata/mod.ts"
 import { CodecCodegen } from "./CodecCodegen.ts"
@@ -66,6 +67,7 @@ export * as types from "./types/mod.js"
         `
 import { chain, ${isTypes ? this.chainName : ""} } from "./chain.js"
 import * as C from "./capi.js"
+import * as _codecs from "./codecs.js"
 import * as t from "./types/mod.js"
 
 ${
@@ -89,6 +91,16 @@ export ${isTypes ? `namespace ${pallet.name}` : `const ${pallet.name} =`} {
               ).join("\n\n")
             }
 
+  ${
+              Object.values(pallet.constants).map((constant) =>
+                isTypes
+                  ? `export const ${constant.name}: ${this.typeCodegen.native(constant.codec)}`
+                  : `${constant.name}: ${
+                    this.codecCodegen.print(constant.codec)
+                  }.decode(C.hex.decode(${JSON.stringify(hex.encode(constant.value))})),`
+              ).join("\n\n")
+            }
+
   ${
               new $.CodecVisitor<string[]>()
                 .add($.taggedUnion, (_, _tagKey: string, variants) =>

fluent/StorageRune.ts

@@ -53,6 +53,12 @@ export class StorageRune<
       .rehandle(null, () => Rune.constant(undefined))
   }
 
+  default() {
+    return this.$value
+      .decoded(this.into(ValueRune).access("default").unhandle(undefined))
+      .rehandle(undefined)
+  }
+
   entryPageRaw<X>(
     ...[count, partialKey, start, blockHash]: RunicArgs<X, [
       count: number,