watson: WAT (WebAssembly Text format) Structured ON Lisp
(ql:quickload :watson)
(defpackage :sample-package
(:use :cl
:watson))
(in-package :sample-package)
(defimport.wat log console.log (func ((i32))))
(defun.wat main () ()
(let (((x i32) 5))
(log (factorial x))))
(defun.wat factorial ((x i32)) (i32)
(let ((result i32))
(if (i32.ge-u 1 x)
(set-local result 1)
(set-local result (i32.mul x (factorial (i32.sub x 1)))))
(get-local result)))
(defexport.wat exported-func (func main))
(let ((*print-pretty* t))
(princ (generate-wat-module *package*)))The result is the following.
(module (import "console" "log" (func $LOG (param i32)))
(func $MAIN (local $X i32) (set_local $X (i32.const 5))
(call $LOG (call $FACTORIAL (get_local $X))))
(func $FACTORIAL (param $X i32) (result i32) (local $RESULT i32)
(if (i32.ge_u (i32.const 1) (get_local $X))
(then (set_local $RESULT (i32.const 1)))
(else
(i32.mul (get_local $X)
(call $FACTORIAL (i32.sub (get_local $X) (i32.const 1))))
(set_local $RESULT)))
(get_local $RESULT))
(export "exported_func" (func $MAIN)))Cf. Format above by hand
(module
(import "console" "log" (func $LOG (param i32)))
(func $MAIN
(local $X i32)
(set_local $X (i32.const 5))
(call $LOG (call $FACTORIAL (get_local $X))))
(func $FACTORIAL (param $X i32) (result i32)
(local $RESULT i32)
(if (i32.ge_u (i32.const 1) (get_local $X))
(then (set_local $RESULT (i32.const 1)))
(else (i32.mul (get_local $X)
(call $FACTORIAL (i32.sub (get_local $X) (i32.const 1))))
(set_local $RESULT)))
(get_local $RESULT))
(export "exported_func" (func $MAIN)))You can define and use macros.
(ql:quickload :watson)
(defpackage :sample-wat-macro
(:use :cl
:watson))
(in-package :sample-wat-macro)
(defimport.wat log console.log (func ((i32))))
(defmacro.wat incf-i32 (place &optional (added 1))
`(set-local ,place (i32.add ,place ,added)))
(defun.wat main () ()
(let (((x i32) 5))
(incf-i32 x)
(log x)))
(defexport.wat exported-func (func main))
(let ((*print-pretty* t))
(princ (generate-wat-module *package*)))The result is the following (formatted by hand).
(module
(import "console" "log" (func $LOG (param i32)))
(func $MAIN (local $X i32)
(set_local $X (i32.const 5))
(set_local $X (i32.add (get_local $X) (i32.const 1)))
(call $LOG (get_local $X)))
(export "exported_func" (func $MAIN)))> (ql:quickload :watson)- Implement WebAssembly tables
- Separate namespace by package
- etc...
- eshamster ([email protected])
Copyright (c) 2020 eshamster ([email protected])
Licensed under the MIT License.
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