[Modding] start add wasm integration (#84)

* start add wasm integration

* some test

* some improvement

* try more language

* expend try with python

* update

* half working python

* improve and extend test

* get py2wasm work but not so well

* convert to use in cpp

* start prepare multimodule

* improve a little by using cpp (but still not great)

* Update wasm.cpp

* try ocaml

* add a working example of python with a not complete function

* remove type to be even more curse

* start add a proper mod loader

* allow mod to communicate between

* example of hook

---------

Co-authored-by: MegaMech <MegaMech@users.noreply.github.com>

.gitignore

@@ -116,4 +116,7 @@ cmake*
 # the game
 default.sav
 imgui.ini
-spaghettify.cfg.json
+spaghettify.cfg.json
+
+# modding
+*.wasm

.gitmodules

@@ -16,6 +16,9 @@
 [submodule "libultraship"]
 	path = libultraship
 	url = https://github.com/Kenix3/libultraship
+[submodule "lib/wasm-micro-runtime"]
+	path = lib/wasm-micro-runtime
+	url = https://github.com/bytecodealliance/wasm-micro-runtime.git
 [submodule "tools/blender/fast64"]
 	path = tools/blender/fast64
 	url = https://github.com/Fast-64/fast64.git

CMakeLists.txt

@@ -98,6 +98,7 @@ include_directories(
     ${CMAKE_CURRENT_SOURCE_DIR}/src/engine/courses
     ${CMAKE_CURRENT_SOURCE_DIR}/src/enhancements
     ${CMAKE_CURRENT_SOURCE_DIR}/src/enhancements/freecam
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/engine
 )
 
 # Collect source files to build the executable
@@ -145,6 +146,8 @@ file(GLOB_RECURSE ALL_FILES RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
     "src/enhancements/*.h"
     "src/enhancements/freecam/*.c"
     "src/enhancements/freecam/*.h"
+    "src/engine/*.cpp"
+    "src/engine/*.h"
 )
 
 list(APPEND ALL_FILES ${ALL_FILES_ROOT})
@@ -582,7 +585,134 @@ add_custom_target(
     WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
     COMMAND ${TORCH_EXECUTABLE} header -o baserom.us.z64
     COMMAND ${TORCH_EXECUTABLE} otr baserom.us.z64
+    COMMAND ${TORCH_EXECUTABLE} code baserom.us.z64
     COMMAND ${TORCH_EXECUTABLE} pack assets ship.otr
     COMMAND ${CMAKE_COMMAND} -E copy_if_different "${CMAKE_SOURCE_DIR}/spaghetti.otr" "${CMAKE_BINARY_DIR}/spaghetti.otr"
     COMMAND ${CMAKE_COMMAND} -E copy_if_different "${CMAKE_SOURCE_DIR}/ship.otr" "${CMAKE_BINARY_DIR}/ship.otr"
 )
+
+if(MSVC)
+set (WAMR_BUILD_PLATFORM "windows")
+else()
+set (WAMR_BUILD_PLATFORM "linux")
+endif()
+
+# Set WAMR_BUILD_TARGET, currently values supported:
+# "X86_64", "AMD_64", "X86_32", "AARCH64[sub]", "ARM[sub]", "THUMB[sub]",
+# "MIPS", "XTENSA", "RISCV64[sub]", "RISCV32[sub]"
+if (NOT DEFINED WAMR_BUILD_TARGET)
+  if (CMAKE_SYSTEM_PROCESSOR MATCHES "^(arm64|aarch64)")
+    set (WAMR_BUILD_TARGET "AARCH64")
+    if (NOT DEFINED WAMR_BUILD_SIMD)
+      set (WAMR_BUILD_SIMD 1)
+    endif ()
+  elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "riscv64")
+    set (WAMR_BUILD_TARGET "RISCV64")
+  elseif (CMAKE_SIZEOF_VOID_P EQUAL 8)
+    # Build as X86_64 by default in 64-bit platform
+    set (WAMR_BUILD_TARGET "X86_64")
+    if (NOT DEFINED WAMR_BUILD_SIMD)
+      set (WAMR_BUILD_SIMD 1)
+    endif ()
+  elseif (CMAKE_SIZEOF_VOID_P EQUAL 4)
+    # Build as X86_32 by default in 32-bit platform
+    set (WAMR_BUILD_TARGET "X86_32")
+  else ()
+    message(SEND_ERROR "Unsupported build target platform!")
+  endif ()
+endif ()
+
+if (NOT DEFINED WAMR_BUILD_INTERP)
+  # Enable Interpreter by default
+  set (WAMR_BUILD_INTERP 1)
+endif ()
+
+if (NOT DEFINED WAMR_BUILD_AOT)
+  # Enable AOT by default.
+  set (WAMR_BUILD_AOT 1)
+endif ()
+  
+if (NOT DEFINED WAMR_BUILD_JIT)
+  # Disable JIT by default.
+  set (WAMR_BUILD_JIT 0)
+endif ()
+
+if (NOT DEFINED WAMR_BUILD_FAST_JIT)
+  # Disable Fast JIT by default
+  set (WAMR_BUILD_FAST_JIT 0)
+endif ()
+
+if (NOT DEFINED WAMR_BUILD_LIBC_BUILTIN)
+  # Enable libc builtin support by default
+  set (WAMR_BUILD_LIBC_BUILTIN 1)
+endif ()
+
+if (NOT DEFINED WAMR_BUILD_LIBC_WASI)
+  # Enable libc wasi support by default
+  set (WAMR_BUILD_LIBC_WASI 1)
+endif ()
+
+if (NOT DEFINED WAMR_BUILD_FAST_INTERP)
+  # Enable fast interpreter
+  set (WAMR_BUILD_FAST_INTERP 1)
+endif ()
+
+if (NOT DEFINED WAMR_BUILD_MULTI_MODULE)
+  # Disable multiple modules by default
+  set (WAMR_BUILD_MULTI_MODULE 0)
+endif ()
+
+if (NOT DEFINED WAMR_BUILD_LIB_PTHREAD)
+  # Disable pthread library by default
+  set (WAMR_BUILD_LIB_PTHREAD 0)
+endif ()
+
+if (NOT DEFINED WAMR_BUILD_LIB_WASI_THREADS)
+  # Disable wasi threads library by default
+  set (WAMR_BUILD_LIB_WASI_THREADS 0)
+endif()
+
+if (NOT DEFINED WAMR_BUILD_MINI_LOADER)
+  # Disable wasm mini loader by default
+  set (WAMR_BUILD_MINI_LOADER 0)
+endif ()
+
+if (NOT DEFINED WAMR_BUILD_SIMD)
+  # Enable SIMD by default
+  set (WAMR_BUILD_SIMD 1)
+endif ()
+
+if (NOT DEFINED WAMR_BUILD_REF_TYPES)
+  # Disable reference types by default
+  set (WAMR_BUILD_REF_TYPES 0)
+endif ()
+
+if (NOT DEFINED WAMR_BUILD_DEBUG_INTERP)
+  # Disable Debug feature by default
+  set (WAMR_BUILD_DEBUG_INTERP 0)
+endif ()
+
+if (WAMR_BUILD_DEBUG_INTERP EQUAL 1)
+  set (WAMR_BUILD_FAST_INTERP 0)
+  set (WAMR_BUILD_MINI_LOADER 0)
+  set (WAMR_BUILD_SIMD 0)
+endif ()
+
+# if enable wasi-nn, both wasi-nn-backends and iwasm
+# need to use same WAMR (dynamic) libraries
+if (WAMR_BUILD_WASI_NN EQUAL 1)
+  set (WAMR_BUILD_SHARED 1)
+endif ()
+
+set (WAMR_BUILD_DUMP_CALL_STACK 1)
+
+set (WAMR_ROOT_DIR lib/wasm-micro-runtime)
+
+include (${WAMR_ROOT_DIR}/build-scripts/runtime_lib.cmake)
+add_library(vmlib ${WAMR_RUNTIME_LIB_SOURCE})
+
+target_link_libraries (${PROJECT_NAME} PRIVATE vmlib)
+
+include_directories(
+    ${WAMR_ROOT_DIR}/core
+)

include/mk64.h

@@ -5,6 +5,10 @@
 #include <string.h>
 #include <libultra/gbi.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @file mk64.h
  * Global header for mk64
@@ -134,4 +138,8 @@ void gSPDisplayListOffset(Gfx* pkt, Gfx* dl, int offset);
 void gSPVertex(Gfx* pkt, uintptr_t v, int n, int v0);
 void gSPInvalidateTexCache(Gfx* pkt, uintptr_t texAddr);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif // MK64_H

mods/C/compile.sh

@@ -0,0 +1,3 @@
+emcc test.c -o testc.wasm -O3 -s LINKABLE=1 -s EXPORT_ALL=1 -s PURE_WASI=1
+rm ../../build/test.wasm
+cp testc.wasm ../../build/test.wasm

mods/C/test.c

@@ -0,0 +1,36 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#define IMPORT_FUNC(return_type, name) __attribute__((import_name(#name))) return_type name
+
+IMPORT_FUNC(int, call_extern_function)(char* module, char* function_name, int argc, int* argv);
+IMPORT_FUNC(void, hook_render)(void());
+IMPORT_FUNC(void, load_debug_font)();
+IMPORT_FUNC(void, post_debug_print)();
+IMPORT_FUNC(void, debug_print_str2)(int x, int y, char*);
+
+int fib(int n) {
+    call_extern_function("test", "testfunc", 0, NULL);
+    if (n <= 1) {
+        return n;
+    }
+    return fib(n - 1) + fib(n - 2);
+}
+
+void testfunc() {
+    printf("call testfunc with the function test\n");
+}
+
+void some_render() {
+    load_debug_font();
+    debug_print_str2(0, 0, "hello");
+    post_debug_print();
+}
+
+void init() {
+    printf("init test\n");
+    hook_render(some_render);
+}
+
+int main() {
+}

mods/asc/.gitignore

@@ -0,0 +1,2 @@
+node_modules
+package-lock.json

mods/asc/asconfig.json

@@ -0,0 +1,23 @@
+{
+  "targets": {
+    "debug": {
+      "outFile": "build/debug.wasm",
+      "textFile": "build/debug.wat",
+      "sourceMap": true,
+      "debug": true
+    },
+    "release": {
+      "outFile": "build/release.wasm",
+      "textFile": "build/release.wat",
+      "sourceMap": true,
+      "optimizeLevel": 3,
+      "shrinkLevel": 0,
+      "converge": false,
+      "noAssert": false
+    }
+  },
+  "options": {
+    "bindings": "esm"
+  },
+  "extends": "./node_modules/@assemblyscript/wasi-shim/asconfig.json"
+}

mods/asc/assembly/index.ts

@@ -0,0 +1,6 @@
+export function fib(n: i32): i32 {
+  if (n <= 1) {
+      return n;
+  }
+  return fib(n - 1) + fib(n - 2);
+}

mods/asc/assembly/tsconfig.json

@@ -0,0 +1,6 @@
+{
+  "extends": "assemblyscript/std/assembly.json",
+  "include": [
+    "./**/*.ts"
+  ]
+}

mods/asc/compile.sh

@@ -0,0 +1,3 @@
+npm run asbuild
+rm ../../build/test.wasm
+cp build/release.wasm ../../build/test.wasm

mods/asc/index.html

@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<script type="module">
+import { add } from "./build/release.js";
+document.body.innerText = add(1, 2);
+</script>
+</head>
+<body></body>
+</html>

mods/asc/package.json

@@ -0,0 +1,26 @@
+{
+  "name": "asc",
+  "version": "1.0.0",
+  "main": "index.js",
+  "scripts": {
+    "test": "node tests",
+    "asbuild:debug": "asc assembly/index.ts --target debug",
+    "asbuild:release": "asc assembly/index.ts --target release",
+    "asbuild": "npm run asbuild:debug && npm run asbuild:release",
+    "start": "npx serve ."
+  },
+  "author": "",
+  "license": "ISC",
+  "description": "",
+  "devDependencies": {
+    "@assemblyscript/wasi-shim": "^0.1.0",
+    "assemblyscript": "^0.27.29"
+  },
+  "type": "module",
+  "exports": {
+    ".": {
+      "import": "./build/release.js",
+      "types": "./build/release.d.ts"
+    }
+  }
+}

mods/asc/setup.sh

@@ -0,0 +1 @@
+npm install

mods/asc/tests/index.js

@@ -0,0 +1,4 @@
+import assert from "assert";
+import { add } from "../build/debug.js";
+assert.strictEqual(add(1, 2), 3);
+console.log("ok");

mods/cython/compile.sh

@@ -0,0 +1,3 @@
+python setup.py build_ext --inplace
+rm ../../build/test.wasm
+cp test.cp311-wasm32_wasip1_threads.wasm ../../build/test.wasm

mods/cython/setup.py

@@ -0,0 +1,9 @@
+from setuptools import setup
+from wasmpy_build import build_ext
+from Cython.Build import cythonize
+
+setup(
+    name='Hello world app',
+    ext_modules=cythonize("test.py"),
+    cmdclass={"build_ext": build_ext},
+)

mods/cython/test.py

@@ -0,0 +1,4 @@
+def fib(n):
+    if n <= 1:
+        return n
+    return fib(n - 1) + fib(n - 2)

mods/go/compile.sh

@@ -0,0 +1,3 @@
+GOOS=wasip1 GOARCH=wasm tinygo build -o testgo.wasm test.go
+rm ../../build/test.wasm
+cp testgo.wasm ../../build/test.wasm

mods/go/test.go

@@ -0,0 +1,12 @@
+package main
+
+//export fib
+func fib(n uint32) uint32 {
+	if (n <= 1) {
+        return n
+    }
+    return fib(n - 1) + fib(n - 2)
+}
+
+// main is required for the `wasip1` target, even if it isn't used.
+func main() {}

mods/js/compile.sh

@@ -0,0 +1,3 @@
+~/Documents/bin/javy-x86_64-linux-v3.1.0 build mods/js/test.js -C wit=mods/js/test.wit -C wit-world=index-world -o testjs.wasm
+rm build/test.wasm
+cp testjs.wasm build/test.wasm

mods/js/test.js

@@ -0,0 +1,7 @@
+
+export function fib(n) { // don't accept argument
+    if (n <= 1){
+        return n;
+    }
+    return fib(n - 1) + fib(n - 2);
+}

mods/js/test.wit

@@ -0,0 +1,5 @@
+package local:main;
+
+world index-world {
+  export fib: func(); 
+}

mods/lua/compile.sh

@@ -0,0 +1,4 @@
+sudo docker pull ysugimoto/webassembly-lua
+sudo docker run --rm -v $PWD:/src ysugimoto/webassembly-lua emcc-lua
+rm ../../build/test.wasm
+cp testlua.wasm ../../build/test.wasm

mods/lua/definition.yml

@@ -0,0 +1,8 @@
+functions:
+  fib:
+    return : int
+    args:
+      - int
+
+entry_file: test.lua
+output_file: testlua.wasm

mods/lua/test.lua

@@ -0,0 +1,6 @@
+function fib(n)
+    if n <= 1 then
+        return n
+    end
+    return fib(n - 1) + fib(n - 2)
+end

mods/ocaml/.gitignore

@@ -0,0 +1,5 @@
+*.byte
+*.wat
+*.js
+*.cmi
+*.cmo

mods/ocaml/compile.sh

@@ -0,0 +1,2 @@
+ocamlfind ocamlc -package js_of_ocaml,js_of_ocaml-ppx,js_of_ocaml-lwt -linkpkg -o test.byte test.mli test.ml
+wasm_of_ocaml test.byte

mods/ocaml/test.ml

@@ -0,0 +1 @@
+let rec fib n = if n <= 1 then n else fib (n - 1) + fib (n - 2)

mods/py/compile.sh

@@ -0,0 +1,3 @@
+python3.11 py2wasmtest.py test.py -o testpy.wasm
+rm ../../build/test.wasm
+cp testpy.wasm ../../build/test.wasm

mods/py/py2wasmtest.py

@@ -0,0 +1,6 @@
+import re
+import sys
+from nuitka.__main__ import py2wasm
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
+    sys.exit(py2wasm())

mods/py/setup.sh

@@ -0,0 +1 @@
+python3.11 -m pip install py2wasm

mods/py/test.py

@@ -0,0 +1,4 @@
+def fib(n):
+    if n <= 1:
+        return n
+    return fib(n - 1) + fib(n - 2)

mods/py2many/.gitignore

@@ -0,0 +1,3 @@
+out
+*.pyc
+__pycache__

mods/py2many/compile.sh

@@ -0,0 +1,5 @@
+py2many . --cpp=1 --outdir out
+echo "#include \"../export.cpp\"" >> out/main.cpp
+emcc out/main.cpp -o out/testpython.wasm -O3 -s LINKABLE=1 -s EXPORT_ALL=1 -s PURE_WASI=1
+rm ../../build/test.wasm
+cp out/testpython.wasm ../../build/test.wasm

mods/py2many/export.cpp

@@ -0,0 +1,5 @@
+extern "C" {
+__attribute__((export_name("fib"))) int exp_fib(int n) {
+    return fib(n);
+}
+}

mods/py2many/main.py

@@ -0,0 +1,7 @@
+def fib(n):
+    if n <= 1:
+        return n
+    return fib(n - 1) + fib(n - 2)
+
+if __name__=="__main__":
+    pass

mods/python-rust/.github/dependabot.yml

@@ -0,0 +1,8 @@
+version: 2
+updates:
+- package-ecosystem: cargo
+  directory: "/"
+  schedule:
+    interval: daily
+    time: "08:00"
+  open-pull-requests-limit: 10

mods/python-rust/.gitignore

@@ -0,0 +1,6 @@
+/target
+**/*.rs.bk
+Cargo.lock
+bin/
+pkg/
+wasm-pack.log

mods/python-rust/.travis.yml

@@ -0,0 +1,69 @@
+language: rust
+sudo: false
+
+cache: cargo
+
+matrix:
+  include:
+
+  # Builds with wasm-pack.
+  - rust: beta
+    env: RUST_BACKTRACE=1
+    addons:
+      firefox: latest
+      chrome: stable
+    before_script:
+      - (test -x $HOME/.cargo/bin/cargo-install-update || cargo install cargo-update)
+      - (test -x $HOME/.cargo/bin/cargo-generate || cargo install --vers "^0.2" cargo-generate)
+      - cargo install-update -a
+      - curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh -s -- -f
+    script:
+      - cargo generate --git . --name testing
+      # Having a broken Cargo.toml (in that it has curlies in fields) anywhere
+      # in any of our parent dirs is problematic.
+      - mv Cargo.toml Cargo.toml.tmpl
+      - cd testing
+      - wasm-pack build
+      - wasm-pack test --chrome --firefox --headless
+
+  # Builds on nightly.
+  - rust: nightly
+    env: RUST_BACKTRACE=1
+    before_script:
+      - (test -x $HOME/.cargo/bin/cargo-install-update || cargo install cargo-update)
+      - (test -x $HOME/.cargo/bin/cargo-generate || cargo install --vers "^0.2" cargo-generate)
+      - cargo install-update -a
+      - rustup target add wasm32-unknown-unknown
+    script:
+      - cargo generate --git . --name testing
+      - mv Cargo.toml Cargo.toml.tmpl
+      - cd testing
+      - cargo check
+      - cargo check --target wasm32-unknown-unknown
+      - cargo check                                 --no-default-features
+      - cargo check --target wasm32-unknown-unknown --no-default-features
+      - cargo check                                 --no-default-features --features console_error_panic_hook
+      - cargo check --target wasm32-unknown-unknown --no-default-features --features console_error_panic_hook
+      - cargo check                                 --no-default-features --features "console_error_panic_hook wee_alloc"
+      - cargo check --target wasm32-unknown-unknown --no-default-features --features "console_error_panic_hook wee_alloc"
+
+  # Builds on beta.
+  - rust: beta
+    env: RUST_BACKTRACE=1
+    before_script:
+      - (test -x $HOME/.cargo/bin/cargo-install-update || cargo install cargo-update)
+      - (test -x $HOME/.cargo/bin/cargo-generate || cargo install --vers "^0.2" cargo-generate)
+      - cargo install-update -a
+      - rustup target add wasm32-unknown-unknown
+    script:
+      - cargo generate --git . --name testing
+      - mv Cargo.toml Cargo.toml.tmpl
+      - cd testing
+      - cargo check
+      - cargo check --target wasm32-unknown-unknown
+      - cargo check                                 --no-default-features
+      - cargo check --target wasm32-unknown-unknown --no-default-features
+      - cargo check                                 --no-default-features --features console_error_panic_hook
+      - cargo check --target wasm32-unknown-unknown --no-default-features --features console_error_panic_hook
+      # Note: no enabling the `wee_alloc` feature here because it requires
+      # nightly for now.

mods/python-rust/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "python"
+version = "0.1.0"
+authors = ["coco875 <pereira.jannin@gmail.com>"]
+edition = "2018"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+rustpython = { git = "https://github.com/RustPython/RustPython", version = "0.4.0" }
+wasi = "0.11"

mods/python-rust/LICENSE_APACHE

@@ -0,0 +1,201 @@
+                              Apache License
+                        Version 2.0, January 2004
+                     http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+   "License" shall mean the terms and conditions for use, reproduction,
+   and distribution as defined by Sections 1 through 9 of this document.
+
+   "Licensor" shall mean the copyright owner or entity authorized by
+   the copyright owner that is granting the License.
+
+   "Legal Entity" shall mean the union of the acting entity and all
+   other entities that control, are controlled by, or are under common
+   control with that entity. For the purposes of this definition,
+   "control" means (i) the power, direct or indirect, to cause the
+   direction or management of such entity, whether by contract or
+   otherwise, or (ii) ownership of fifty percent (50%) or more of the
+   outstanding shares, or (iii) beneficial ownership of such entity.
+
+   "You" (or "Your") shall mean an individual or Legal Entity
+   exercising permissions granted by this License.
+
+   "Source" form shall mean the preferred form for making modifications,
+   including but not limited to software source code, documentation
+   source, and configuration files.
+
+   "Object" form shall mean any form resulting from mechanical
+   transformation or translation of a Source form, including but
+   not limited to compiled object code, generated documentation,
+   and conversions to other media types.
+
+   "Work" shall mean the work of authorship, whether in Source or
+   Object form, made available under the License, as indicated by a
+   copyright notice that is included in or attached to the work
+   (an example is provided in the Appendix below).
+
+   "Derivative Works" shall mean any work, whether in Source or Object
+   form, that is based on (or derived from) the Work and for which the
+   editorial revisions, annotations, elaborations, or other modifications
+   represent, as a whole, an original work of authorship. For the purposes
+   of this License, Derivative Works shall not include works that remain
+   separable from, or merely link (or bind by name) to the interfaces of,
+   the Work and Derivative Works thereof.
+
+   "Contribution" shall mean any work of authorship, including
+   the original version of the Work and any modifications or additions
+   to that Work or Derivative Works thereof, that is intentionally
+   submitted to Licensor for inclusion in the Work by the copyright owner
+   or by an individual or Legal Entity authorized to submit on behalf of
+   the copyright owner. For the purposes of this definition, "submitted"
+   means any form of electronic, verbal, or written communication sent
+   to the Licensor or its representatives, including but not limited to
+   communication on electronic mailing lists, source code control systems,
+   and issue tracking systems that are managed by, or on behalf of, the
+   Licensor for the purpose of discussing and improving the Work, but
+   excluding communication that is conspicuously marked or otherwise
+   designated in writing by the copyright owner as "Not a Contribution."
+
+   "Contributor" shall mean Licensor and any individual or Legal Entity
+   on behalf of whom a Contribution has been received by Licensor and
+   subsequently incorporated within the Work.
+
+2. Grant of Copyright License. Subject to the terms and conditions of
+   this License, each Contributor hereby grants to You a perpetual,
+   worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+   copyright license to reproduce, prepare Derivative Works of,
+   publicly display, publicly perform, sublicense, and distribute the
+   Work and such Derivative Works in Source or Object form.
+
+3. Grant of Patent License. Subject to the terms and conditions of
+   this License, each Contributor hereby grants to You a perpetual,
+   worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+   (except as stated in this section) patent license to make, have made,
+   use, offer to sell, sell, import, and otherwise transfer the Work,
+   where such license applies only to those patent claims licensable
+   by such Contributor that are necessarily infringed by their
+   Contribution(s) alone or by combination of their Contribution(s)
+   with the Work to which such Contribution(s) was submitted. If You
+   institute patent litigation against any entity (including a
+   cross-claim or counterclaim in a lawsuit) alleging that the Work
+   or a Contribution incorporated within the Work constitutes direct
+   or contributory patent infringement, then any patent licenses
+   granted to You under this License for that Work shall terminate
+   as of the date such litigation is filed.
+
+4. Redistribution. You may reproduce and distribute copies of the
+   Work or Derivative Works thereof in any medium, with or without
+   modifications, and in Source or Object form, provided that You
+   meet the following conditions:
+
+   (a) You must give any other recipients of the Work or
+       Derivative Works a copy of this License; and
+
+   (b) You must cause any modified files to carry prominent notices
+       stating that You changed the files; and
+
+   (c) You must retain, in the Source form of any Derivative Works
+       that You distribute, all copyright, patent, trademark, and
+       attribution notices from the Source form of the Work,
+       excluding those notices that do not pertain to any part of
+       the Derivative Works; and
+
+   (d) If the Work includes a "NOTICE" text file as part of its
+       distribution, then any Derivative Works that You distribute must
+       include a readable copy of the attribution notices contained
+       within such NOTICE file, excluding those notices that do not
+       pertain to any part of the Derivative Works, in at least one
+       of the following places: within a NOTICE text file distributed
+       as part of the Derivative Works; within the Source form or
+       documentation, if provided along with the Derivative Works; or,
+       within a display generated by the Derivative Works, if and
+       wherever such third-party notices normally appear. The contents
+       of the NOTICE file are for informational purposes only and
+       do not modify the License. You may add Your own attribution
+       notices within Derivative Works that You distribute, alongside
+       or as an addendum to the NOTICE text from the Work, provided
+       that such additional attribution notices cannot be construed
+       as modifying the License.
+
+   You may add Your own copyright statement to Your modifications and
+   may provide additional or different license terms and conditions
+   for use, reproduction, or distribution of Your modifications, or
+   for any such Derivative Works as a whole, provided Your use,
+   reproduction, and distribution of the Work otherwise complies with
+   the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise,
+   any Contribution intentionally submitted for inclusion in the Work
+   by You to the Licensor shall be under the terms and conditions of
+   this License, without any additional terms or conditions.
+   Notwithstanding the above, nothing herein shall supersede or modify
+   the terms of any separate license agreement you may have executed
+   with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+   names, trademarks, service marks, or product names of the Licensor,
+   except as required for reasonable and customary use in describing the
+   origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or
+   agreed to in writing, Licensor provides the Work (and each
+   Contributor provides its Contributions) on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied, including, without limitation, any warranties or conditions
+   of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+   PARTICULAR PURPOSE. You are solely responsible for determining the
+   appropriateness of using or redistributing the Work and assume any
+   risks associated with Your exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory,
+   whether in tort (including negligence), contract, or otherwise,
+   unless required by applicable law (such as deliberate and grossly
+   negligent acts) or agreed to in writing, shall any Contributor be
+   liable to You for damages, including any direct, indirect, special,
+   incidental, or consequential damages of any character arising as a
+   result of this License or out of the use or inability to use the
+   Work (including but not limited to damages for loss of goodwill,
+   work stoppage, computer failure or malfunction, or any and all
+   other commercial damages or losses), even if such Contributor
+   has been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing
+   the Work or Derivative Works thereof, You may choose to offer,
+   and charge a fee for, acceptance of support, warranty, indemnity,
+   or other liability obligations and/or rights consistent with this
+   License. However, in accepting such obligations, You may act only
+   on Your own behalf and on Your sole responsibility, not on behalf
+   of any other Contributor, and only if You agree to indemnify,
+   defend, and hold each Contributor harmless for any liability
+   incurred by, or claims asserted against, such Contributor by reason
+   of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+   To apply the Apache License to your work, attach the following
+   boilerplate notice, with the fields enclosed by brackets "[]"
+   replaced with your own identifying information. (Don't include
+   the brackets!)  The text should be enclosed in the appropriate
+   comment syntax for the file format. We also recommend that a
+   file or class name and description of purpose be included on the
+   same "printed page" as the copyright notice for easier
+   identification within third-party archives.
+
+Copyright [yyyy] [name of copyright owner]
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

mods/python-rust/LICENSE_MIT

@@ -0,0 +1,25 @@
+Copyright (c) 2018 coco875 <pereira.jannin@gmail.com>
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.

mods/python-rust/README.md

@@ -0,0 +1,84 @@
+<div align="center">
+
+  <h1><code>wasm-pack-template</code></h1>
+
+  <strong>A template for kick starting a Rust and WebAssembly project using <a href="https://github.com/rustwasm/wasm-pack">wasm-pack</a>.</strong>
+
+  <p>
+    <a href="https://travis-ci.org/rustwasm/wasm-pack-template"><img src="https://img.shields.io/travis/rustwasm/wasm-pack-template.svg?style=flat-square" alt="Build Status" /></a>
+  </p>
+
+  <h3>
+    <a href="https://rustwasm.github.io/docs/wasm-pack/tutorials/npm-browser-packages/index.html">Tutorial</a>
+    <span> | </span>
+    <a href="https://discordapp.com/channels/442252698964721669/443151097398296587">Chat</a>
+  </h3>
+
+  <sub>Built with 🦀🕸 by <a href="https://rustwasm.github.io/">The Rust and WebAssembly Working Group</a></sub>
+</div>
+
+## About
+
+[**📚 Read this template tutorial! 📚**][template-docs]
+
+This template is designed for compiling Rust libraries into WebAssembly and
+publishing the resulting package to NPM.
+
+Be sure to check out [other `wasm-pack` tutorials online][tutorials] for other
+templates and usages of `wasm-pack`.
+
+[tutorials]: https://rustwasm.github.io/docs/wasm-pack/tutorials/index.html
+[template-docs]: https://rustwasm.github.io/docs/wasm-pack/tutorials/npm-browser-packages/index.html
+
+## 🚴 Usage
+
+### 🐑 Use `cargo generate` to Clone this Template
+
+[Learn more about `cargo generate` here.](https://github.com/ashleygwilliams/cargo-generate)
+
+```
+cargo generate --git https://github.com/rustwasm/wasm-pack-template.git --name my-project
+cd my-project
+```
+
+### 🛠️ Build with `wasm-pack build`
+
+```
+wasm-pack build
+```
+
+### 🔬 Test in Headless Browsers with `wasm-pack test`
+
+```
+wasm-pack test --headless --firefox
+```
+
+### 🎁 Publish to NPM with `wasm-pack publish`
+
+```
+wasm-pack publish
+```
+
+## 🔋 Batteries Included
+
+* [`wasm-bindgen`](https://github.com/rustwasm/wasm-bindgen) for communicating
+  between WebAssembly and JavaScript.
+* [`console_error_panic_hook`](https://github.com/rustwasm/console_error_panic_hook)
+  for logging panic messages to the developer console.
+* `LICENSE-APACHE` and `LICENSE-MIT`: most Rust projects are licensed this way, so these are included for you
+
+## License
+
+Licensed under either of
+
+* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
+* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
+
+at your option.
+
+### Contribution
+
+Unless you explicitly state otherwise, any contribution intentionally
+submitted for inclusion in the work by you, as defined in the Apache-2.0
+license, shall be dual licensed as above, without any additional terms or
+conditions.

mods/python-rust/compile.sh

@@ -0,0 +1,3 @@
+cargo build --target wasm32-wasip1 --lib --release
+rm ../../build/test.wasm
+cp target/wasm32-wasip1/release/rust.wasm ../../build/test.wasm

mods/python-rust/setup.sh

@@ -0,0 +1 @@
+rustup target add wasm32-wasip1

mods/python-rust/src/lib.rs

@@ -0,0 +1,29 @@
+use std::env;
+
+use rustpython::vm;
+
+fn main() {
+    let mut setting: vm::Settings = Default::default();
+    setting.path_list.push("".to_string());
+    let inter = vm::Interpreter::without_stdlib(setting);
+    let ret: vm::PyResult<()> = inter.enter(|vm| {
+        let scope = vm.new_scope_with_builtins();
+        let source = r#"print("Hello World from python!")"#;
+        let code_obj = vm
+            .compile(source, vm::compiler::Mode::Exec, "<embedded>".to_owned())
+            .map_err(|err| vm.new_syntax_error(&err, Some(source)))?;
+
+        vm.unwrap_pyresult(vm.run_code_obj(code_obj, scope));
+
+        Ok(())
+    });
+}
+
+#[no_mangle]
+pub fn fib(n: u32) -> u32 {
+    if n <= 1 {
+        main();
+        return n;
+    }
+    return fib(n - 1) + fib(n - 2);
+}

mods/python-rust/tests/web.rs

@@ -0,0 +1,13 @@
+//! Test suite for the Web and headless browsers.
+
+#![cfg(target_arch = "wasm32")]
+
+extern crate wasm_bindgen_test;
+use wasm_bindgen_test::*;
+
+wasm_bindgen_test_configure!(run_in_browser);
+
+#[wasm_bindgen_test]
+fn pass() {
+    assert_eq!(1 + 1, 2);
+}

mods/rust/.github/dependabot.yml

@@ -0,0 +1,8 @@
+version: 2
+updates:
+- package-ecosystem: cargo
+  directory: "/"
+  schedule:
+    interval: daily
+    time: "08:00"
+  open-pull-requests-limit: 10

mods/rust/.gitignore

@@ -0,0 +1,6 @@
+/target
+**/*.rs.bk
+Cargo.lock
+bin/
+pkg/
+wasm-pack.log

mods/rust/.travis.yml

@@ -0,0 +1,69 @@
+language: rust
+sudo: false
+
+cache: cargo
+
+matrix:
+  include:
+
+  # Builds with wasm-pack.
+  - rust: beta
+    env: RUST_BACKTRACE=1
+    addons:
+      firefox: latest
+      chrome: stable
+    before_script:
+      - (test -x $HOME/.cargo/bin/cargo-install-update || cargo install cargo-update)
+      - (test -x $HOME/.cargo/bin/cargo-generate || cargo install --vers "^0.2" cargo-generate)
+      - cargo install-update -a
+      - curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh -s -- -f
+    script:
+      - cargo generate --git . --name testing
+      # Having a broken Cargo.toml (in that it has curlies in fields) anywhere
+      # in any of our parent dirs is problematic.
+      - mv Cargo.toml Cargo.toml.tmpl
+      - cd testing
+      - wasm-pack build
+      - wasm-pack test --chrome --firefox --headless
+
+  # Builds on nightly.
+  - rust: nightly
+    env: RUST_BACKTRACE=1
+    before_script:
+      - (test -x $HOME/.cargo/bin/cargo-install-update || cargo install cargo-update)
+      - (test -x $HOME/.cargo/bin/cargo-generate || cargo install --vers "^0.2" cargo-generate)
+      - cargo install-update -a
+      - rustup target add wasm32-unknown-unknown
+    script:
+      - cargo generate --git . --name testing
+      - mv Cargo.toml Cargo.toml.tmpl
+      - cd testing
+      - cargo check
+      - cargo check --target wasm32-unknown-unknown
+      - cargo check                                 --no-default-features
+      - cargo check --target wasm32-unknown-unknown --no-default-features
+      - cargo check                                 --no-default-features --features console_error_panic_hook
+      - cargo check --target wasm32-unknown-unknown --no-default-features --features console_error_panic_hook
+      - cargo check                                 --no-default-features --features "console_error_panic_hook wee_alloc"
+      - cargo check --target wasm32-unknown-unknown --no-default-features --features "console_error_panic_hook wee_alloc"
+
+  # Builds on beta.
+  - rust: beta
+    env: RUST_BACKTRACE=1
+    before_script:
+      - (test -x $HOME/.cargo/bin/cargo-install-update || cargo install cargo-update)
+      - (test -x $HOME/.cargo/bin/cargo-generate || cargo install --vers "^0.2" cargo-generate)
+      - cargo install-update -a
+      - rustup target add wasm32-unknown-unknown
+    script:
+      - cargo generate --git . --name testing
+      - mv Cargo.toml Cargo.toml.tmpl
+      - cd testing
+      - cargo check
+      - cargo check --target wasm32-unknown-unknown
+      - cargo check                                 --no-default-features
+      - cargo check --target wasm32-unknown-unknown --no-default-features
+      - cargo check                                 --no-default-features --features console_error_panic_hook
+      - cargo check --target wasm32-unknown-unknown --no-default-features --features console_error_panic_hook
+      # Note: no enabling the `wee_alloc` feature here because it requires
+      # nightly for now.

mods/rust/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "rust"
+version = "0.1.0"
+authors = ["coco875 <pereira.jannin@gmail.com>"]
+edition = "2018"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+wasi = "0.11"

mods/rust/LICENSE_APACHE

@@ -0,0 +1,201 @@
+                              Apache License
+                        Version 2.0, January 2004
+                     http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+   "License" shall mean the terms and conditions for use, reproduction,
+   and distribution as defined by Sections 1 through 9 of this document.
+
+   "Licensor" shall mean the copyright owner or entity authorized by
+   the copyright owner that is granting the License.
+
+   "Legal Entity" shall mean the union of the acting entity and all
+   other entities that control, are controlled by, or are under common
+   control with that entity. For the purposes of this definition,
+   "control" means (i) the power, direct or indirect, to cause the
+   direction or management of such entity, whether by contract or
+   otherwise, or (ii) ownership of fifty percent (50%) or more of the
+   outstanding shares, or (iii) beneficial ownership of such entity.
+
+   "You" (or "Your") shall mean an individual or Legal Entity
+   exercising permissions granted by this License.
+
+   "Source" form shall mean the preferred form for making modifications,
+   including but not limited to software source code, documentation
+   source, and configuration files.
+
+   "Object" form shall mean any form resulting from mechanical
+   transformation or translation of a Source form, including but
+   not limited to compiled object code, generated documentation,
+   and conversions to other media types.
+
+   "Work" shall mean the work of authorship, whether in Source or
+   Object form, made available under the License, as indicated by a
+   copyright notice that is included in or attached to the work
+   (an example is provided in the Appendix below).
+
+   "Derivative Works" shall mean any work, whether in Source or Object
+   form, that is based on (or derived from) the Work and for which the
+   editorial revisions, annotations, elaborations, or other modifications
+   represent, as a whole, an original work of authorship. For the purposes
+   of this License, Derivative Works shall not include works that remain
+   separable from, or merely link (or bind by name) to the interfaces of,
+   the Work and Derivative Works thereof.
+
+   "Contribution" shall mean any work of authorship, including
+   the original version of the Work and any modifications or additions
+   to that Work or Derivative Works thereof, that is intentionally
+   submitted to Licensor for inclusion in the Work by the copyright owner
+   or by an individual or Legal Entity authorized to submit on behalf of
+   the copyright owner. For the purposes of this definition, "submitted"
+   means any form of electronic, verbal, or written communication sent
+   to the Licensor or its representatives, including but not limited to
+   communication on electronic mailing lists, source code control systems,
+   and issue tracking systems that are managed by, or on behalf of, the
+   Licensor for the purpose of discussing and improving the Work, but
+   excluding communication that is conspicuously marked or otherwise
+   designated in writing by the copyright owner as "Not a Contribution."
+
+   "Contributor" shall mean Licensor and any individual or Legal Entity
+   on behalf of whom a Contribution has been received by Licensor and
+   subsequently incorporated within the Work.
+
+2. Grant of Copyright License. Subject to the terms and conditions of
+   this License, each Contributor hereby grants to You a perpetual,
+   worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+   copyright license to reproduce, prepare Derivative Works of,
+   publicly display, publicly perform, sublicense, and distribute the
+   Work and such Derivative Works in Source or Object form.
+
+3. Grant of Patent License. Subject to the terms and conditions of
+   this License, each Contributor hereby grants to You a perpetual,
+   worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+   (except as stated in this section) patent license to make, have made,
+   use, offer to sell, sell, import, and otherwise transfer the Work,
+   where such license applies only to those patent claims licensable
+   by such Contributor that are necessarily infringed by their
+   Contribution(s) alone or by combination of their Contribution(s)
+   with the Work to which such Contribution(s) was submitted. If You
+   institute patent litigation against any entity (including a
+   cross-claim or counterclaim in a lawsuit) alleging that the Work
+   or a Contribution incorporated within the Work constitutes direct
+   or contributory patent infringement, then any patent licenses
+   granted to You under this License for that Work shall terminate
+   as of the date such litigation is filed.
+
+4. Redistribution. You may reproduce and distribute copies of the
+   Work or Derivative Works thereof in any medium, with or without
+   modifications, and in Source or Object form, provided that You
+   meet the following conditions:
+
+   (a) You must give any other recipients of the Work or
+       Derivative Works a copy of this License; and
+
+   (b) You must cause any modified files to carry prominent notices
+       stating that You changed the files; and
+
+   (c) You must retain, in the Source form of any Derivative Works
+       that You distribute, all copyright, patent, trademark, and
+       attribution notices from the Source form of the Work,
+       excluding those notices that do not pertain to any part of
+       the Derivative Works; and
+
+   (d) If the Work includes a "NOTICE" text file as part of its
+       distribution, then any Derivative Works that You distribute must
+       include a readable copy of the attribution notices contained
+       within such NOTICE file, excluding those notices that do not
+       pertain to any part of the Derivative Works, in at least one
+       of the following places: within a NOTICE text file distributed
+       as part of the Derivative Works; within the Source form or
+       documentation, if provided along with the Derivative Works; or,
+       within a display generated by the Derivative Works, if and
+       wherever such third-party notices normally appear. The contents
+       of the NOTICE file are for informational purposes only and
+       do not modify the License. You may add Your own attribution
+       notices within Derivative Works that You distribute, alongside
+       or as an addendum to the NOTICE text from the Work, provided
+       that such additional attribution notices cannot be construed
+       as modifying the License.
+
+   You may add Your own copyright statement to Your modifications and
+   may provide additional or different license terms and conditions
+   for use, reproduction, or distribution of Your modifications, or
+   for any such Derivative Works as a whole, provided Your use,
+   reproduction, and distribution of the Work otherwise complies with
+   the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise,
+   any Contribution intentionally submitted for inclusion in the Work
+   by You to the Licensor shall be under the terms and conditions of
+   this License, without any additional terms or conditions.
+   Notwithstanding the above, nothing herein shall supersede or modify
+   the terms of any separate license agreement you may have executed
+   with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+   names, trademarks, service marks, or product names of the Licensor,
+   except as required for reasonable and customary use in describing the
+   origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or
+   agreed to in writing, Licensor provides the Work (and each
+   Contributor provides its Contributions) on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied, including, without limitation, any warranties or conditions
+   of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+   PARTICULAR PURPOSE. You are solely responsible for determining the
+   appropriateness of using or redistributing the Work and assume any
+   risks associated with Your exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory,
+   whether in tort (including negligence), contract, or otherwise,
+   unless required by applicable law (such as deliberate and grossly
+   negligent acts) or agreed to in writing, shall any Contributor be
+   liable to You for damages, including any direct, indirect, special,
+   incidental, or consequential damages of any character arising as a
+   result of this License or out of the use or inability to use the
+   Work (including but not limited to damages for loss of goodwill,
+   work stoppage, computer failure or malfunction, or any and all
+   other commercial damages or losses), even if such Contributor
+   has been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing
+   the Work or Derivative Works thereof, You may choose to offer,
+   and charge a fee for, acceptance of support, warranty, indemnity,
+   or other liability obligations and/or rights consistent with this
+   License. However, in accepting such obligations, You may act only
+   on Your own behalf and on Your sole responsibility, not on behalf
+   of any other Contributor, and only if You agree to indemnify,
+   defend, and hold each Contributor harmless for any liability
+   incurred by, or claims asserted against, such Contributor by reason
+   of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+   To apply the Apache License to your work, attach the following
+   boilerplate notice, with the fields enclosed by brackets "[]"
+   replaced with your own identifying information. (Don't include
+   the brackets!)  The text should be enclosed in the appropriate
+   comment syntax for the file format. We also recommend that a
+   file or class name and description of purpose be included on the
+   same "printed page" as the copyright notice for easier
+   identification within third-party archives.
+
+Copyright [yyyy] [name of copyright owner]
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

mods/rust/LICENSE_MIT

@@ -0,0 +1,25 @@
+Copyright (c) 2018 coco875 <pereira.jannin@gmail.com>
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.

mods/rust/compile.sh

@@ -0,0 +1,3 @@
+cargo build --target wasm32-wasip1 --release
+rm ../../build/test.wasm
+cp target/wasm32-wasip1/release/rust.wasm ../../build/test.wasm

mods/rust/setup.sh

@@ -0,0 +1 @@
+rustup target add wasm32-wasip1

mods/rust/src/lib.rs

@@ -0,0 +1,7 @@
+#[no_mangle]
+pub fn fib(n: u32) -> u32 {
+    if n <= 1 {
+        return n;
+    }
+    return fib(n - 1) + fib(n - 2);
+}

mods/rust/tests/web.rs

@@ -0,0 +1,13 @@
+//! Test suite for the Web and headless browsers.
+
+#![cfg(target_arch = "wasm32")]
+
+extern crate wasm_bindgen_test;
+use wasm_bindgen_test::*;
+
+wasm_bindgen_test_configure!(run_in_browser);
+
+#[wasm_bindgen_test]
+fn pass() {
+    assert_eq!(1 + 1, 2);
+}

src/code_80091750.h

@@ -5,6 +5,10 @@
 #include "textures.h"
 #include "main.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 extern u32 _course_mario_raceway_dl_mio0SegmentRomStart[];
 
 /* File specific types */
@@ -615,4 +619,8 @@ extern f32 D_8018EDA4;
 extern f32 D_8018EDA8;
 extern f32 D_8018EDAC;
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif

src/engine/wasm.cpp

@@ -0,0 +1,213 @@
+extern "C" {
+#include <iwasm/include/wasm_c_api.h>
+#include <iwasm/include/wasm_export.h>
+#include <iwasm/include/lib_export.h>
+#include <iwasm/interpreter/wasm_runtime.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <dirent.h>
+}
+
+#include <fstream>
+#include <iostream>
+#include <vector>
+#include <filesystem>
+#include <functional>
+#include <main.h>
+#include <code_80091750.h>
+#include <common_data.h>
+#include <data_segment2.h>
+#include <render_objects.h>
+
+struct mod_instance {
+    wasm_exec_env_t exec_env;
+    char* name;
+};
+
+std::vector<mod_instance> mods_instance = {};
+
+std::vector<std::function<void()>> render_hook = {};
+
+void hook_render(wasm_exec_env_t exec_env, uint32 func1) {
+    render_hook.push_back([exec_env, func1]() { wasm_runtime_call_indirect(exec_env, func1, 0, NULL); });
+}
+
+extern "C" void call_render_hook() {
+    for (auto f : render_hook) {
+        f();
+    }
+}
+
+void load_mod_wasm_file(char* mod_name, char* buffer, size_t size) {
+    char error_buf[128];
+    wasm_module_t module;
+    wasm_module_inst_t module_inst;
+    wasm_exec_env_t exec_env;
+    uint32_t stack_size = 8092 * 8092, heap_size = 8092 * 8;
+    /* parse the WASM file from buffer and create a WASM module */
+    module = wasm_runtime_load((uint8_t*) buffer, size, error_buf, sizeof(error_buf));
+    printf("error? %s\n", error_buf);
+
+    if (module == NULL) {
+        printf("%s\n", error_buf);
+        exit(-1);
+    }
+
+    /* create an instance of the WASM module (WASM linear memory is ready) */
+    module_inst = wasm_runtime_instantiate(module, stack_size, heap_size, error_buf, sizeof(error_buf));
+    if (module_inst == NULL) {
+        printf("%s\n", error_buf);
+        exit(-1);
+    }
+
+    /* lookup a WASM function by its name
+     The function signature can NULL here */
+
+    /* creat an execution environment to execute the WASM functions */
+    exec_env = wasm_runtime_create_exec_env(module_inst, stack_size);
+    mods_instance.push_back({ exec_env, mod_name });
+}
+
+mod_instance* find_mod(char* name) {
+    for (size_t i = 0; i < mods_instance.size(); i++) {
+        if (strcmp(mods_instance[i].name, name) == 0) {
+            return &mods_instance[i];
+        }
+    }
+    return NULL;
+}
+
+wasm_module_inst_t get_mods_instance(char* mod_name) {
+    return wasm_exec_env_get_module_inst(find_mod(mod_name)->exec_env);
+}
+
+wasm_function_inst_t mod_lookup_function(char* mod_name, char* function_name) {
+    return wasm_runtime_lookup_function(get_mods_instance(mod_name), function_name);
+}
+
+bool mod_call_function_wasm(char* mod_name, char* function_name, uint32 argc, uint32 argv[]) {
+    wasm_function_inst_t func = mod_lookup_function(mod_name, function_name);
+    if (func == NULL) {
+        printf("error to find the function\n");
+        return false;
+    }
+
+    return wasm_runtime_call_wasm(find_mod(mod_name)->exec_env, func, 1, argv);
+}
+
+void mod_print_exception(char* mod_name) {
+    printf("%s\n", wasm_runtime_get_exception(get_mods_instance(mod_name)));
+}
+
+uint32 call_extern_function(wasm_exec_env_t exec_env, char* mod_name, char* function_name, uint32 argc,
+                            uint32 argv_offset) {
+    if (!wasm_runtime_validate_app_addr(wasm_exec_env_get_module_inst(exec_env), (uint64) argv_offset,
+                                        (uint64) argc * 4)) {
+        return false;
+    }
+    uint32* argv =
+        (uint32*) wasm_runtime_addr_app_to_native(wasm_exec_env_get_module_inst(exec_env), (uint64) argv_offset);
+    return mod_call_function_wasm(mod_name, function_name, argc, argv);
+}
+
+void post_debug_print(wasm_exec_env_t exec_env) {
+    gSPDisplayList(gDisplayListHead++, (Gfx*) D_0D007EB8);
+    gSPDisplayList(gDisplayListHead++, (Gfx*) D_020076E0);
+    func_80093C98(1);
+}
+
+void load_debug_font_wrapper(wasm_exec_env_t exec_env) {
+    load_debug_font();
+}
+
+void debug_print_str2_wrapper(wasm_exec_env_t exec_env, uint32 x, uint32 y, char* str) {
+    debug_print_str2(x, y, str);
+}
+
+/* the native functions that will be exported to WASM app */
+static NativeSymbol native_symbols[] = {
+    EXPORT_WASM_API_WITH_SIG(call_extern_function, "($$ii)i"), EXPORT_WASM_API_WITH_SIG(hook_render, "(i)"),
+    EXPORT_WASM_API_WITH_SIG(post_debug_print, "()"),          EXPORT_WASM_API_WITH_SIG2(load_debug_font, "()"),
+    EXPORT_WASM_API_WITH_SIG2(debug_print_str2, "(ii$)"),
+    // EXPORT_WASM_API_WITH_SIG(display_input_read, "(*)i"),
+    // EXPORT_WASM_API_WITH_SIG(display_flush, "(iiii*)")
+};
+
+/* all the runtime memory allocations are retricted in the global_heap_buf array */
+static char global_heap_buf[512 * 1024];
+
+char* read_wasm_binary_to_buffer(char* path, uint32_t* size) {
+    std::ifstream file;
+    file.open(path, std::ios::binary);
+    if (!file.is_open()) {
+        perror(path);
+        return NULL;
+    }
+
+    file.seekg(0, std::ios::end);
+
+    *size = file.tellg();
+
+    file.seekg(0);
+
+    char* c_buffer = (char*) malloc(*size);
+    file.read(c_buffer, *size);
+    return c_buffer;
+}
+
+extern "C" void load_wasm() {
+    printf("load wasm\n");
+    char* buffer;
+
+    /* initialize the wasm runtime by default configurations */
+    wasm_runtime_init();
+
+    RuntimeInitArgs init_args;
+    memset(&init_args, 0, sizeof(RuntimeInitArgs));
+
+    /* configure the memory allocator for the runtime */
+    init_args.mem_alloc_type = Alloc_With_Pool;
+    init_args.mem_alloc_option.pool.heap_buf = global_heap_buf;
+    init_args.mem_alloc_option.pool.heap_size = sizeof(global_heap_buf);
+
+    /* set maximum thread number if needed when multi-thread is enabled,
+    the default value is 4 */
+    init_args.max_thread_num = 4;
+
+    /* initialize runtime environment with user configurations*/
+    if (!wasm_runtime_full_init(&init_args)) {
+        exit(-1);
+    }
+
+    int n_native_symbols = sizeof(native_symbols) / sizeof(NativeSymbol);
+    if (!wasm_runtime_register_natives("env", native_symbols, n_native_symbols)) {
+        exit(-1);
+    }
+    uint32_t size;
+    /* read WASM file into a memory buffer */
+    buffer = read_wasm_binary_to_buffer("test.wasm", &size);
+    if (buffer == NULL) {
+        printf("error read binary\n");
+        exit(-1);
+    }
+
+    load_mod_wasm_file("test", buffer, size);
+
+    uint32_t argv[2];
+
+    /* arguments are always transferred in 32-bit element */
+    argv[0] = 8;
+    printf("run fib function\n");
+    /* call the WASM function */
+    if (mod_call_function_wasm("test", "fib", 1, argv)) {
+        /* the return value is stored in argv[0] */
+        printf("fib function return: %d\n", argv[0]);
+    } else {
+        /* exception is thrown if call fails */
+        // wasm_runtime_dump_call_stack(exec_env);
+        mod_print_exception("test");
+    }
+    mod_call_function_wasm("test", "init", 0, NULL);
+}

src/engine/wasm.h

@@ -0,0 +1,2 @@
+void load_wasm();
+void call_render_hook();

src/main.c

@@ -44,6 +44,7 @@
 #include "buffers/gfx_output_buffer.h"
 #include <bridge/gfxdebuggerbridge.h>
 #include "enhancements/freecam/freecam.h"
+#include "engine/wasm.h"
 
 // Declarations (not in this file)
 void func_80091B78(void);
@@ -937,7 +938,6 @@ void game_state_handler(void) {
         gGamestateNext = ENDING;
     }
 #endif
-
     switch (gGamestate) {
         case 7:
             game_init_clear_framebuffer();
@@ -965,6 +965,7 @@ void game_state_handler(void) {
             credits_loop();
             break;
     }
+    call_render_hook();
 }
 
 void interrupt_gfx_sptask(void) {

src/port/Game.cpp

@@ -32,6 +32,7 @@ extern "C" {
 #include "audio/load.h"
 #include "audio/external.h"
 #include "networking/networking.h"
+#include "engine/wasm.h"
 }
 
 extern "C" void Graphics_PushFrame(Gfx* data) {
@@ -460,6 +461,7 @@ extern "C"
     int
     main(int argc, char* argv[]) {
 #endif
+    load_wasm();
     GameEngine::Create();
     // audio_init();
     // sound_init();

src/render_objects.h

@@ -4,6 +4,10 @@
 #include <common_structs.h>
 #include "main.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 void func_80045738(u8*, u8*, s32, s32);
 void func_80057114(s32);
 void func_800431B0(Vec3f, Vec3su, f32, Vtx*);
@@ -449,4 +453,8 @@ extern u8* D_8018D4C0;
 
 extern u8* gPortraitTextures[];
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif