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@ -431,7 +431,7 @@ impl TreeParser {
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self.step();
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self.step();
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self.step();
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self.step();
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Some(Pow {
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Some(Pow {
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base: previous.to_non_enclosed().boxed(),
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base: previous.clone().boxed(),
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exp: self.parse_element().unwrap().to_non_enclosed().boxed(),
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exp: self.parse_element().unwrap().to_non_enclosed().boxed(),
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})
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})
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} else {
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} else {
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@ -445,7 +445,7 @@ impl TreeParser {
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self.step();
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self.step();
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self.step();
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self.step();
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Some(Sub {
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Some(Sub {
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base: previous.to_non_enclosed().boxed(),
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base: previous.clone().boxed(),
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lower: self.parse_element().unwrap().to_non_enclosed().boxed(),
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lower: self.parse_element().unwrap().to_non_enclosed().boxed(),
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})
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})
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} else {
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} else {
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