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ideas [skip-ci]

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This commit is contained in:
Johan B.W. de Vries 2021-04-03 18:37:09 +02:00
parent 473cd0b626
commit 2a93d6125e
10 changed files with 111 additions and 63 deletions
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7
.gitignore vendored
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@ -1,2 +1,5 @@
*.wasm
*.wat
/*.wasm
/*.wat
/venv
__pycache__

8
Makefile
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@ -6,3 +6,11 @@
server:
python3.8 -m http.server
test: venv/.done
venv/bin/pytest tests
venv/.done: requirements.txt
python3.8 -m venv venv
venv/bin/python3 -m pip install -r $^
touch $@

17
compile.py
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@ -138,17 +138,22 @@ class Visitor(ast.NodeVisitor):
def err(msg: str) -> None:
sys.stderr.write('{}\n'.format(msg))
def main(source: str, sink: str) -> int:
with open(source, 'r') as fil:
code = fil.read()
res = ast.parse(code, source)
def process(input: str, input_name: str) -> str:
res = ast.parse(input, input_name)
visitor = Visitor()
visitor.visit(res)
return visitor.generate()
def main(source: str, sink: str) -> int:
with open(source, 'r') as fil:
code_py = fil.read()
code_wat = process(code_py, source)
with open(sink, 'w') as fil:
fil.write(visitor.generate())
fil.write(code_wat)
return 0

20
func.html
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@ -1,20 +0,0 @@
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Simple add example</title>
</head>
<body>
<script>
WebAssembly.instantiateStreaming(fetch('func.wasm'))
.then(obj => {
console.log(obj.instance.exports.add(1, 2)); // "3"
});
</script>
</body>
</html>

29
log.html
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@ -1,29 +0,0 @@
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Simple log example</title>
</head>
<body>
<script>
var importObject = {
console: {
log: function(arg) {
console.log(arg);
}
}
};
WebAssembly.instantiateStreaming(fetch('log.wasm'), importObject)
.then(obj => {
obj.instance.exports.logIt();
});
</script>
</body>
</html>

6
log.py
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@ -1,6 +0,0 @@
@external('console')
def log(msg: i32) -> None:
...
def logIt():
log(13 + 13 * 123)

2
requirements.txt Normal file
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@ -0,0 +1,2 @@
pywasm==1.0.7
pytest==6.2.2

0
tests/__init__.py Normal file
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0
tests/integration/__init__.py Normal file
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85
tests/integration/test_fib.py Normal file
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@ -0,0 +1,85 @@
import io
import subprocess
import sys
from tempfile import NamedTemporaryFile
from pywasm import binary
from pywasm import Runtime
from compile import process
def wat2wasm(code_wat):
with NamedTemporaryFile('w+t') as input_fp:
input_fp.write(code_wat)
input_fp.flush()
with NamedTemporaryFile('w+b') as output_fp:
result = subprocess.run(
[
'wat2wasm',
input_fp.name,
'-o',
output_fp.name,
],
check=True,
)
output_fp.seek(0)
return output_fp.read()
class SuiteResult:
def __init__(self):
self.log_int32_list = []
def callback_log_int32(self, store, value):
del store # auto passed by pywasm
self.log_int32_list.append(value)
def make_imports(self):
return {
'console': {
'logInt32': self.callback_log_int32,
}
}
class Suite:
def __init__(self, code_py, test_name):
self.code_py = code_py
self.test_name = test_name
def run_code(self, *args):
"""
Compiles the given python code into wasm and
then runs it
Returned is an object with the results set
"""
code_wat = process(self.code_py, self.test_name)
sys.stderr.write(code_wat)
code_wasm = wat2wasm(code_wat)
module = binary.Module.from_reader(io.BytesIO(code_wasm))
result = SuiteResult()
runtime = Runtime(module, result.make_imports(), {})
result.returned_value = runtime.exec('testEntry', args)
return result
def test_fib():
code_py = """
@external('console')
def logInt32(value: i32) -> None:
...
def testEntry():
logInt32(13 + 13 * 123)
"""
result = Suite(code_py, 'test_fib').run_code()
assert None is result.returned_value
assert [1612] == result.log_int32_list