| 1 | # The MIT License (MIT) |
| 2 | # |
| 3 | # Copyright (c) 2015-2020 Philippe Proulx <pproulx@efficios.com> |
| 4 | # |
| 5 | # Permission is hereby granted, free of charge, to any person obtaining |
| 6 | # a copy of this software and associated documentation files (the |
| 7 | # "Software"), to deal in the Software without restriction, including |
| 8 | # without limitation the rights to use, copy, modify, merge, publish, |
| 9 | # distribute, sublicense, and/or sell copies of the Software, and to |
| 10 | # permit persons to whom the Software is furnished to do so, subject to |
| 11 | # the following conditions: |
| 12 | # |
| 13 | # The above copyright notice and this permission notice shall be |
| 14 | # included in all copies or substantial portions of the Software. |
| 15 | # |
| 16 | # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 17 | # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 18 | # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 19 | # IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| 20 | # CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 21 | # TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 22 | # SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 23 | |
| 24 | class _CodeGenerator: |
| 25 | def __init__(self, indent_string): |
| 26 | self._indent_string = indent_string |
| 27 | self.reset() |
| 28 | |
| 29 | @property |
| 30 | def code(self): |
| 31 | return '\n'.join(self._lines) |
| 32 | |
| 33 | def reset(self): |
| 34 | self._lines = [] |
| 35 | self._indent = 0 |
| 36 | self._glue = False |
| 37 | |
| 38 | def add_line(self, line): |
| 39 | if self._glue: |
| 40 | self.append_to_last_line(line) |
| 41 | self._glue = False |
| 42 | return |
| 43 | |
| 44 | indent_string = self._get_indent_string() |
| 45 | self._lines.append(indent_string + str(line)) |
| 46 | |
| 47 | def add_lines(self, lines): |
| 48 | if type(lines) is str: |
| 49 | lines = lines.split('\n') |
| 50 | |
| 51 | for line in lines: |
| 52 | self.add_line(line) |
| 53 | |
| 54 | def add_glue(self): |
| 55 | self._glue = True |
| 56 | |
| 57 | def append_to_last_line(self, s): |
| 58 | if self._lines: |
| 59 | self._lines[-1] += str(s) |
| 60 | |
| 61 | def add_empty_line(self): |
| 62 | self._lines.append('') |
| 63 | |
| 64 | def add_cc_line(self, comment): |
| 65 | self.add_line('/* {} */'.format(comment)) |
| 66 | |
| 67 | def append_cc_to_last_line(self, comment, with_space=True): |
| 68 | if with_space: |
| 69 | sp = ' ' |
| 70 | else: |
| 71 | sp = '' |
| 72 | |
| 73 | self.append_to_last_line('{}/* {} */'.format(sp, comment)) |
| 74 | |
| 75 | def indent(self): |
| 76 | self._indent += 1 |
| 77 | |
| 78 | def unindent(self): |
| 79 | self._indent = max(self._indent - 1, 0) |
| 80 | |
| 81 | def _get_indent_string(self): |
| 82 | return self._indent_string * self._indent |