swf: Avoid one usage of `Reader::pos`
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@ -2622,10 +2622,13 @@ pub mod tests {
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// Halfway parse the SWF file until we find the tag we're searching for.
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let mut reader = Reader::new(&swf_buf.data, swf_buf.header.version());
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loop {
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let tag_start = &reader.get_ref();
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let tag_start = reader.get_ref();
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let (swf_tag_code, tag_len) = reader.read_tag_code_and_length().unwrap();
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let tag_data = &tag_start[..reader.pos(tag_start) + tag_len];
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let tag_end = &reader.get_ref()[tag_len..];
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let full_tag_len = tag_end.as_ptr() as usize - tag_start.as_ptr() as usize;
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let tag_data = &tag_start[..full_tag_len];
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// Skip tag data.
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*reader.get_mut() = tag_end;
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