2024-12-01 18:49:14 +00:00
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class BaseReplacer:
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def __init__(self, content, tree):
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self.content = content
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self.tree = tree
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self.replaces = []
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def _node_text(self, node):
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"""Helper function to get the text of a node."""
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2024-12-01 19:24:12 +00:00
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return self.content[node.start_byte : node.end_byte].decode("utf-8")
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2024-12-01 18:49:14 +00:00
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def _apply_replacements(self):
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"""Apply the replacements to the content and edit the tree."""
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new_content = bytearray(self.content)
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for replace_info in sorted(
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self.replaces,
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key=lambda x: (x["node"].start_byte, x["node"].end_byte),
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reverse=True,
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):
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start, end = (
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replace_info["node"].start_byte,
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replace_info["node"].end_byte,
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)
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replacement = replace_info["content"].encode("utf-8")
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new_content[start:end] = replacement
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self.tree.edit(
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start_byte=start,
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old_end_byte=end,
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new_end_byte=start + len(replacement),
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start_point=replace_info["node"].start_point,
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old_end_point=replace_info["node"].end_point,
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new_end_point=(
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replace_info["node"].start_point[0],
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replace_info["node"].start_point[1] + len(replacement),
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),
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)
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return new_content
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def process(self):
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raise NotImplementedError("Subclasses should implement this method.")
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