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`deepest_preceding` is known to be a descendant of `node`. Repeated
calls of `Node::parent` _should_ eventually turn `deepest_preceding`
into `node`, but when the node is errored (the tree contains a syntax
error), `Node::parent` returns None.
In the typescript case:
if(true) &&true
// ^ press enter here
The tree is:
(program [0, 0] - [1, 0]
(if_statement [0, 0] - [0, 15]
condition: (parenthesized_expression [0, 2] - [0, 8]
(true [0, 3] - [0, 7]))
consequence: (expression_statement [0, 8] - [0, 15]
(binary_expression [0, 8] - [0, 15]
left: (identifier [0, 8] - [0, 8])
right: (true [0, 11] - [0, 15])))))
`node` is the `program` node and `deepest_preceding` is the
`binary_expression`. The tree is errored on the `binary_expression`
node with `(MISSING identifier [0, 8] - [0, 8])`.
In the C++ case:
; <<
// press enter after the ';'
The tree is:
(translation_unit [0, 0] - [1, 0]
(expression_statement [0, 0] - [0, 1])
(ERROR [0, 1] - [0, 4]
(identifier [0, 1] - [0, 1])))
`node` is the `translation_unit` and `deepest_preceding` is the `ERROR`
node.
In both cases, `Node::parent` on the errored node returns None.
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2 years ago | |
|---|---|---|
| .. | ||
| increment | 2 years ago | |
| auto_pairs.rs | 2 years ago | |
| chars.rs | 3 years ago | |
| comment.rs | 2 years ago | |
| config.rs | 3 years ago | |
| diagnostic.rs | 2 years ago | |
| diff.rs | 3 years ago | |
| graphemes.rs | 3 years ago | |
| history.rs | 2 years ago | |
| indent.rs | 2 years ago | |
| lib.rs | 2 years ago | |
| line_ending.rs | 2 years ago | |
| macros.rs | 4 years ago | |
| match_brackets.rs | 3 years ago | |
| movement.rs | 2 years ago | |
| object.rs | 2 years ago | |
| path.rs | 2 years ago | |
| position.rs | 2 years ago | |
| register.rs | 2 years ago | |
| search.rs | 3 years ago | |
| selection.rs | 2 years ago | |
| shellwords.rs | 2 years ago | |
| surround.rs | 2 years ago | |
| syntax.rs | 2 years ago | |
| test.rs | 2 years ago | |
| textobject.rs | 2 years ago | |
| transaction.rs | 2 years ago | |
| wrap.rs | 3 years ago | |