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Avoid massacaring errors

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This commit is contained in:
Aleksey Kladov 2018-08-25 15:12:17 +03:00
parent c3e5987c43
commit a80c07bdff
2 changed files with 12 additions and 5 deletions
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10
crates/libsyntax2/src/lib.rs
View file

@ -93,7 +93,7 @@ impl File {
&text, &tokens, reparser,
);
let green_root = node.replace_with(green);
let errors = merge_errors(self.errors(), new_errors, edit, node.range().start());
let errors = merge_errors(self.errors(), new_errors, node, edit);
Some(File::new(green_root, errors))
}
fn full_reparse(&self, edit: &AtomEdit) -> File {
@ -210,14 +210,14 @@ fn is_balanced(tokens: &[Token]) -> bool {
fn merge_errors(
old_errors: Vec<SyntaxError>,
new_errors: Vec<SyntaxError>,
old_node: SyntaxNodeRef,
edit: &AtomEdit,
node_offset: TextUnit,
) -> Vec<SyntaxError> {
let mut res = Vec::new();
for e in old_errors {
if e.offset < edit.delete.start() {
if e.offset < old_node.range().start() {
res.push(e)
} else if e.offset > edit.delete.end() {
} else if e.offset > old_node.range().end() {
res.push(SyntaxError {
msg: e.msg,
offset: e.offset + TextUnit::of_str(&edit.insert) - edit.delete.len(),
@ -227,7 +227,7 @@ fn merge_errors(
for e in new_errors {
res.push(SyntaxError {
msg: e.msg,
offset: e.offset + node_offset,
offset: e.offset + old_node.range().start(),
})
}
res

7
crates/libsyntax2/tests/test/main.rs
View file

@ -59,6 +59,13 @@ struct Foo {
f: foo<|><|>
}
", ",\n g: (),");
do_check(r"
fn foo {
let;
1 + 1;
<|>92<|>;
}
", "62");
}