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code_generator.py
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181 lines (150 loc) · 5.42 KB
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import typing as t
class TabWrapper:
def __init__(self, generator, prefix='', suffix='', newline=True):
"""
Args:
generator (CodeGenerator):
"""
self.generator = generator
self.prefix = prefix
self.suffix = suffix
self.newline = newline
self.nested = False
def __enter__(self):
if not self.nested and self.prefix:
self.generator.add(self.prefix, newline=self.newline)
self.generator.tab_count += 1
return self
def __exit__(self, exc_type, exc_val, exc_tb):
self.generator.tab_count -= 1
if self.suffix:
self.generator.add(self.suffix)
def __repr__(self):
return self.prefix
def set_nested(self, suffix=''):
self.nested = True
self.suffix += suffix
class CodeGenerator:
def __init__(self):
self.tab_count = 0
self.lines = []
def generate(self) -> t.Iterable[str]:
yield ''
def add(self, line, comment=False, newline=True):
self.lines.append(self._line_with_tabs(line, comment=comment, newline=newline))
def print(self):
lines = ''.join(self.lines)
print(lines)
def write(self, file: str = None):
lines = ''.join(self.lines)
with open(file, 'w', encoding='utf-8', newline='') as f:
f.write(lines)
def _line_with_tabs(self, line, comment=False, newline=True):
if comment:
line = '# ' + line
out = ' ' * self.tab_count + line
if newline:
out += '\n'
return out
def _repr(self, obj):
if isinstance(obj, str):
if '\n' in obj:
out = '"""\n'
with self.tab():
for line in obj.strip().split('\n'):
line = line.strip()
out += self._line_with_tabs(line)
out += self._line_with_tabs('"""', newline=False)
return out
return repr(obj)
def tab(self):
return TabWrapper(self)
def Empty(self):
self.add('')
def Import(self, text, empty=2):
for line in text.strip().split('\n'):
line = line.strip()
self.add(line)
for _ in range(empty):
self.Empty()
def Value(self, key=None, value=None, type_=None, **kwargs):
if key is not None:
if type_ is not None:
self.add(f'{key}: {type_} = {self._repr(value)}')
else:
self.add(f'{key} = {self._repr(value)}')
for key, value in kwargs.items():
self.Value(key, value)
def Comment(self, text):
for line in text.strip().split('\n'):
line = line.strip()
self.add(line, comment=True)
def CommentAutoGenerage(self, file):
"""
Args:
file: dev_tools.button_extract
"""
# Only leave one blank line at above
if len(self.lines) >= 2:
if self.lines[-2:] == ['\n', '\n']:
self.lines.pop(-1)
self.Comment('This file was auto-generated, do not modify it manually. To generate:')
self.Comment(f'``` python -m {file} ```')
self.Empty()
def List(self, key=None):
if key is not None:
return TabWrapper(self, prefix=str(key) + ' = [', suffix=']')
else:
return TabWrapper(self, prefix='[', suffix=']', newline=False)
def ListItem(self, value):
if isinstance(value, TabWrapper):
value.set_nested(suffix=',')
self.add(f'{self._repr(value)}')
return value
else:
self.add(f'{self._repr(value)},')
def Dict(self, key=None):
if key is not None:
return TabWrapper(self, prefix=str(key) + ' = {', suffix='}')
else:
return TabWrapper(self, prefix='{', suffix='}', newline=False)
def DictItem(self, key=None, value=None):
if isinstance(value, TabWrapper):
value.set_nested(suffix=',')
if key is not None:
self.add(f'{self._repr(key)}: {self._repr(value)}')
return value
else:
if key is not None:
self.add(f'{self._repr(key)}: {self._repr(value)},')
def Object(self, object_class, key=None):
if key is not None:
return TabWrapper(self, prefix=f'{key} = {object_class}(', suffix=')')
else:
return TabWrapper(self, prefix=f'{object_class}(', suffix=')', newline=False)
def ObjectAttr(self, key=None, value=None):
if isinstance(value, TabWrapper):
value.set_nested(suffix=',')
if key is None:
self.add(f'{self._repr(value)}')
else:
self.add(f'{key}={self._repr(value)}')
return value
else:
if key is None:
self.add(f'{self._repr(value)},')
else:
self.add(f'{key}={self._repr(value)},')
def Class(self, name, inherit=None):
if inherit is not None:
return TabWrapper(self, prefix=f'class {name}({inherit}):')
else:
return TabWrapper(self, prefix=f'class {name}:')
def Def(self, name, args=''):
return TabWrapper(self, prefix=f'def {name}({args}):')
generator = CodeGenerator()
Import = generator.Import
Value = generator.Value
Comment = generator.Comment
Dict = generator.Dict
DictItem = generator.DictItem