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Swift: add unit tests to code generation

Browse Source 
Tests can be run with
```
bazel test //swift/codegen:tests
```

Coverage can be checked installing `pytest-cov` and running
```
pytest --cov=swift/codegen swift/codegen/test
```
This commit is contained in:
Paolo Tranquilli
2022-04-26 18:22:40 +02:00
parent 2d05ea3519
commit f171ce6341
19 changed files with 1008 additions and 149 deletions
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10
swift/codegen/lib/render.py
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@@ -19,8 +19,7 @@ class Renderer:
""" Template renderer using mustache templates in the `templates` directory """
def __init__(self):
self.r = pystache.Renderer(search_dirs=str(paths.lib_dir / "templates"), escape=lambda u: u)
self.generator = paths.exe_file.relative_to(paths.swift_dir)
self._r = pystache.Renderer(search_dirs=str(paths.lib_dir / "templates"), escape=lambda u: u)
self.written = set()
def render(self, data, output: pathlib.Path):
@@ -32,7 +31,7 @@ class Renderer:
"""
mnemonic = type(data).__name__
output.parent.mkdir(parents=True, exist_ok=True)
data = self.r.render_name(data.template, data, generator=self.generator)
data = self._r.render_name(data.template, data, generator=paths.exe_file)
with open(output, "w") as out:
out.write(data)
log.debug(f"generated {mnemonic} {output.name}")
@@ -41,6 +40,5 @@ class Renderer:
def cleanup(self, existing):
""" Remove files in `existing` for which no `render` has been called """
for f in existing - self.written:
if f.is_file():
f.unlink()
log.info(f"removed {f.name}")
f.unlink(missing_ok=True)
log.info(f"removed {f.name}")