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Improve diagnostic when including nonexistent file

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This commit is contained in:
Jonas Schievink 2021-03-17 21:56:09 +01:00
parent 9d691530d5
commit 5f80364ede
3 changed files with 13 additions and 12 deletions
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2
crates/hir_def/src/body/tests.rs
View File

@ -137,7 +137,7 @@ fn f() {
include!(invalid);
//^^^^^^^^^^^^^^^^^ could not convert tokens
include!("does not exist");
//^^^^^^^^^^^^^^^^^^^^^^^^^^ could not convert tokens
//^^^^^^^^^^^^^^^^^^^^^^^^^^ failed to load file `does not exist`
env!(invalid);
//^^^^^^^^^^^^^ could not convert tokens

2
crates/hir_def/src/nameres/tests/diagnostics.rs
View File

@ -196,7 +196,7 @@ fn builtin_macro_fails_expansion() {
macro_rules! include { () => {} }
include!("doesntexist");
//^^^^^^^^^^^^^^^^^^^^^^^^ could not convert tokens
//^^^^^^^^^^^^^^^^^^^^^^^^ failed to load file `doesntexist`
"#,
);
}

21
crates/hir_expand/src/builtin_macro.rs
View File

@ -333,17 +333,19 @@ fn concat_expand(
fn relative_file(
db: &dyn AstDatabase,
call_id: MacroCallId,
path: &str,
path_str: &str,
allow_recursion: bool,
) -> Option<FileId> {
) -> Result<FileId, mbe::ExpandError> {
let call_site = call_id.as_file().original_file(db);
let path = AnchoredPath { anchor: call_site, path };
let res = db.resolve_path(path)?;
let path = AnchoredPath { anchor: call_site, path: path_str };
let res = db
.resolve_path(path)
.ok_or_else(|| mbe::ExpandError::Other(format!("failed to load file `{}`", path_str)))?;
// Prevent include itself
if res == call_site && !allow_recursion {
None
Err(mbe::ExpandError::Other(format!("recursive inclusion of `{}`", path_str)))
} else {
Some(res)
Ok(res)
}
}
@ -364,8 +366,7 @@ fn include_expand(
) -> ExpandResult<Option<(tt::Subtree, FragmentKind)>> {
let res = (|| {
let path = parse_string(tt)?;
let file_id = relative_file(db, arg_id.into(), &path, false)
.ok_or_else(|| mbe::ExpandError::ConversionError)?;
let file_id = relative_file(db, arg_id.into(), &path, false)?;
Ok(parse_to_token_tree(&db.file_text(file_id))
.ok_or_else(|| mbe::ExpandError::ConversionError)?
@ -417,8 +418,8 @@ fn include_str_expand(
// Ideally, we'd be able to offer a precise expansion if the user asks for macro
// expansion.
let file_id = match relative_file(db, arg_id.into(), &path, true) {
Some(file_id) => file_id,
None => {
Ok(file_id) => file_id,
Err(_) => {
return ExpandResult::ok(Some((quote!(""), FragmentKind::Expr)));
}
};