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Compare contents begin/end.

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This commit is contained in:
Tom Alexander
2023-10-31 22:10:19 -04:00
parent 33f4614d28
commit 92592104a4
8 changed files with 98 additions and 75 deletions
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47
src/compare/util.rs
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@@ -79,18 +79,41 @@ fn assert_bounds<'b, 's, S: StandardProperties<'s> + ?Sized>(
rust: &'b S,
) -> Result<(), Box<dyn std::error::Error>> {
let standard_properties = get_emacs_standard_properties(emacs)?; // 1-based
let (begin, end) = (
standard_properties
.begin
.ok_or("Token should have a begin.")?,
standard_properties.end.ok_or("Token should have an end.")?,
);
let (rust_begin, rust_end) = get_rust_byte_offsets(original_document, rust.get_source()); // 0-based
let rust_begin_char_offset = original_document[..rust_begin].chars().count() + 1; // 1-based
let rust_end_char_offset =
rust_begin_char_offset + original_document[rust_begin..rust_end].chars().count(); // 1-based
if rust_begin_char_offset != begin || rust_end_char_offset != end {
Err(format!("Rust bounds (in chars) ({rust_begin}, {rust_end}) do not match emacs bounds ({emacs_begin}, {emacs_end})", rust_begin = rust_begin_char_offset, rust_end = rust_end_char_offset, emacs_begin=begin, emacs_end=end))?;
// Check begin/end
{
let (begin, end) = (
standard_properties
.begin
.ok_or("Token should have a begin.")?,
standard_properties.end.ok_or("Token should have an end.")?,
);
let (rust_begin, rust_end) = get_rust_byte_offsets(original_document, rust.get_source()); // 0-based
let rust_begin_char_offset = original_document[..rust_begin].chars().count() + 1; // 1-based
let rust_end_char_offset =
rust_begin_char_offset + original_document[rust_begin..rust_end].chars().count(); // 1-based
if rust_begin_char_offset != begin || rust_end_char_offset != end {
Err(format!("Rust bounds (in chars) ({rust_begin}, {rust_end}) do not match emacs bounds ({emacs_begin}, {emacs_end})", rust_begin = rust_begin_char_offset, rust_end = rust_end_char_offset, emacs_begin=begin, emacs_end=end))?;
}
}
// Check contents-begin/contents-end
{
let (begin, end) = (
standard_properties
.contents_begin
.ok_or("Token should have a begin.")?,
standard_properties
.contents_end
.ok_or("Token should have an end.")?,
);
let (rust_begin, rust_end) = get_rust_byte_offsets(original_document, rust.get_contents()); // 0-based
let rust_begin_char_offset = original_document[..rust_begin].chars().count() + 1; // 1-based
let rust_end_char_offset =
rust_begin_char_offset + original_document[rust_begin..rust_end].chars().count(); // 1-based
if rust_begin_char_offset != begin || rust_end_char_offset != end {
Err(format!("Rust bounds (in chars) ({rust_begin}, {rust_end}) do not match emacs bounds ({emacs_begin}, {emacs_end})", rust_begin = rust_begin_char_offset, rust_end = rust_end_char_offset, emacs_begin=begin, emacs_end=end))?;
}
}
Ok(())