From 2aec6c5df289df5fa2638b6145cf288669707c24 Mon Sep 17 00:00:00 2001
From: David Konsumer <konsumer@jetboystudio.com>
Date: Sat, 14 Sep 2024 17:15:55 -0700
Subject: [PATCH] starting work on assemblyscript example

---
 cart/as/.gitignore                  |   4 ++
 cart/as/README.md                   |   5 +++
 cart/as/asconfig.json               |  16 ++++++++
 cart/as/null0.ts                    |  19 ++++++++++
 cart/as/package-lock.json           |  57 ++++++++++++++++++++++++++++
 cart/as/package.json                |  20 ++++++++++
 cart/as/src/assets/notnullgames.ogg | Bin 0 -> 12955 bytes
 cart/as/src/index.ts                |   9 +++++
 cart/as/src/tsconfig.json           |   6 +++
 null0_api/src/null0_api_wamr.h      |   5 +--
 10 files changed, 138 insertions(+), 3 deletions(-)
 create mode 100644 cart/as/.gitignore
 create mode 100644 cart/as/README.md
 create mode 100644 cart/as/asconfig.json
 create mode 100644 cart/as/null0.ts
 create mode 100644 cart/as/package-lock.json
 create mode 100644 cart/as/package.json
 create mode 100755 cart/as/src/assets/notnullgames.ogg
 create mode 100644 cart/as/src/index.ts
 create mode 100644 cart/as/src/tsconfig.json

diff --git a/cart/as/.gitignore b/cart/as/.gitignore
new file mode 100644
index 0000000..1a25504
--- /dev/null
+++ b/cart/as/.gitignore
@@ -0,0 +1,4 @@
+.DS_Store
+node_modules
+build
+*.log
diff --git a/cart/as/README.md b/cart/as/README.md
new file mode 100644
index 0000000..4040be8
--- /dev/null
+++ b/cart/as/README.md
@@ -0,0 +1,5 @@
+This is an example null0 cart written in [assemblyscript](https://www.assemblyscript.org/).
+
+## TODO
+
+- look into [better build](https://github.com/notnullgames/null0-ideas/blob/main/projects/assemblyscript/tools/build.mjs)
diff --git a/cart/as/asconfig.json b/cart/as/asconfig.json
new file mode 100644
index 0000000..b72c80b
--- /dev/null
+++ b/cart/as/asconfig.json
@@ -0,0 +1,16 @@
+{
+  "targets": {
+    "release": {
+      "outFile": "build/main.wasm",
+      "textFile": "build/main.wat",
+      "sourceMap": true,
+      "optimizeLevel": 3,
+      "shrinkLevel": 0,
+      "converge": false,
+      "noAssert": false
+    }
+  },
+  "options": {
+    "bindings": "esm"
+  }
+}
diff --git a/cart/as/null0.ts b/cart/as/null0.ts
new file mode 100644
index 0000000..2c5e7ec
--- /dev/null
+++ b/cart/as/null0.ts
@@ -0,0 +1,19 @@
+// log a string
+@external("null0", "trace")
+declare function _null0_real_trace(text: ArrayBuffer): void
+
+// these are called by language
+// https://www.assemblyscript.org/concepts.html#special-imports
+// TODO: would WASI help with these?
+
+export function _null0_trace(message: String): void {
+  _null0_real_trace(String.UTF8.encode(message, true));
+}
+
+export function _null0_abort(message: String, fileName: String, line: u32, column: u32): void {
+  _null0_real_trace(String.UTF8.encode("ABORT: " + message, true));
+}
+
+export function _null0_seed(): f64 {
+  return 1.0;
+}
diff --git a/cart/as/package-lock.json b/cart/as/package-lock.json
new file mode 100644
index 0000000..eddbf24
--- /dev/null
+++ b/cart/as/package-lock.json
@@ -0,0 +1,57 @@
+{
+  "name": "@null0/example-as",
+  "version": "0.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "@null0/example-as",
+      "version": "0.0.0",
+      "license": "MIT",
+      "devDependencies": {
+        "assemblyscript": "^0.27.29"
+      }
+    },
+    "node_modules/assemblyscript": {
+      "version": "0.27.29",
+      "resolved": "https://registry.npmjs.org/assemblyscript/-/assemblyscript-0.27.29.tgz",
+      "integrity": "sha512-pH6udb7aE2F0t6cTh+0uCepmucykhMnAmm7k0kkAU3SY7LvpIngEBZWM6p5VCguu4EpmKGwEuZpZbEXzJ/frHQ==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "binaryen": "116.0.0-nightly.20240114",
+        "long": "^5.2.1"
+      },
+      "bin": {
+        "asc": "bin/asc.js",
+        "asinit": "bin/asinit.js"
+      },
+      "engines": {
+        "node": ">=16",
+        "npm": ">=7"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/assemblyscript"
+      }
+    },
+    "node_modules/binaryen": {
+      "version": "116.0.0-nightly.20240114",
+      "resolved": "https://registry.npmjs.org/binaryen/-/binaryen-116.0.0-nightly.20240114.tgz",
+      "integrity": "sha512-0GZrojJnuhoe+hiwji7QFaL3tBlJoA+KFUN7ouYSDGZLSo9CKM8swQX8n/UcbR0d1VuZKU+nhogNzv423JEu5A==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "bin": {
+        "wasm-opt": "bin/wasm-opt",
+        "wasm2js": "bin/wasm2js"
+      }
+    },
+    "node_modules/long": {
+      "version": "5.2.3",
+      "resolved": "https://registry.npmjs.org/long/-/long-5.2.3.tgz",
+      "integrity": "sha512-lcHwpNoggQTObv5apGNCTdJrO69eHOZMi4BNC+rTLER8iHAqGrUVeLh/irVIM7zTw2bOXA8T6uNPeujwOLg/2Q==",
+      "dev": true,
+      "license": "Apache-2.0"
+    }
+  }
+}
diff --git a/cart/as/package.json b/cart/as/package.json
new file mode 100644
index 0000000..94e4a87
--- /dev/null
+++ b/cart/as/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "@null0/example-as",
+  "version": "0.0.0",
+  "scripts": {
+    "build": "asc src/index.ts  --target release --use trace=_null0_trace --use abort=_null0_abort --use seed=_null0_seed --lib ./null0.ts && mkdir -p build/cart/assets && cp build/main.wasm build/cart && cp src/assets/* build/cart/assets && cd build/cart && zip -r ../example.null0 .",
+    "start": "../../build/host/null0  ./build/example.null0",
+    "prestart": "npm run build"
+  },
+  "license": "MIT",
+  "devDependencies": {
+    "assemblyscript": "^0.27.29"
+  },
+  "type": "module",
+  "exports": {
+    ".": {
+      "import": "./build/release.js",
+      "types": "./build/release.d.ts"
+    }
+  }
+}
diff --git a/cart/as/src/assets/notnullgames.ogg b/cart/as/src/assets/notnullgames.ogg
new file mode 100755
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literal 0
HcmV?d00001

diff --git a/cart/as/src/index.ts b/cart/as/src/index.ts
new file mode 100644
index 0000000..f0f971b
--- /dev/null
+++ b/cart/as/src/index.ts
@@ -0,0 +1,9 @@
+// called when the cart is loaded
+export function load(): void {
+  trace("hello");
+}
+
+// called on every frame
+export function update(): void {
+  trace("update");
+}
diff --git a/cart/as/src/tsconfig.json b/cart/as/src/tsconfig.json
new file mode 100644
index 0000000..e28fcf2
--- /dev/null
+++ b/cart/as/src/tsconfig.json
@@ -0,0 +1,6 @@
+{
+  "extends": "assemblyscript/std/assembly.json",
+  "include": [
+    "./**/*.ts"
+  ]
+}
\ No newline at end of file
diff --git a/null0_api/src/null0_api_wamr.h b/null0_api/src/null0_api_wamr.h
index f559ce4..2e2d4a3 100755
--- a/null0_api/src/null0_api_wamr.h
+++ b/null0_api/src/null0_api_wamr.h
@@ -785,7 +785,6 @@ RuntimeInitArgs null0_init_args() {
   init_args.n_native_symbols = sizeof(null0_wamr_callbacks) / sizeof(NativeSymbol);
   init_args.native_module_name = "null0";
   init_args.native_symbols = null0_wamr_callbacks;
-
   return init_args;
 }
 
@@ -815,14 +814,14 @@ bool null0_init() {
   error_buf[0] = 0;
   wasm_module_t module = wasm_runtime_load(wasmBytes, wasmSize, error_buf, sizeof(error_buf));
   if (error_buf[0] != 0) {
-    printf("load - %s\n", error_buf);
+    fprintf(stderr, "ERROR: load - %s\n", error_buf);
     return false;
   }
 
   error_buf[0] = 0;
   module_inst = wasm_runtime_instantiate(module, stack_size, heap_size, error_buf, sizeof(error_buf));
   if (error_buf[0] != 0) {
-    printf("instantiate - %s\n", error_buf);
+    fprintf(stderr, "ERROR: instantiate - %s\n", error_buf);
     return false;
   }