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b9037339cb
Currently we have an awkward mix of fallible and infallible functions:
```
new_parser_from_source_str
maybe_new_parser_from_source_str
new_parser_from_file
(maybe_new_parser_from_file) // missing
(new_parser_from_source_file) // missing
maybe_new_parser_from_source_file
source_str_to_stream
maybe_source_file_to_stream
```
We could add the two missing functions, but instead this commit removes
of all the infallible ones and renames the fallible ones leaving us with
these which are all fallible:
```
new_parser_from_source_str
new_parser_from_file
new_parser_from_source_file
source_str_to_stream
source_file_to_stream
```
This requires making `unwrap_or_emit_fatal` public so callers of
formerly infallible functions can still work.
This does make some of the call sites slightly more verbose, but I think
it's worth it for the simpler API. Also, there are two `catch_unwind`
calls and one `catch_fatal_errors` call in this diff that become
removable thanks this change. (I will do that in a follow-up PR.)
40 lines
1.1 KiB
Rust
40 lines
1.1 KiB
Rust
//@ run-pass
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// Testing that a librustc_ast can parse modules with canonicalized base path
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//@ ignore-cross-compile
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//@ ignore-remote
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// no-remap-src-base: Reading `file!()` (expectedly) fails when enabled.
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#![feature(rustc_private)]
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extern crate rustc_ast;
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extern crate rustc_parse;
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extern crate rustc_session;
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extern crate rustc_span;
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// Necessary to pull in object code as the rest of the rustc crates are shipped only as rmeta
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// files.
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#[allow(unused_extern_crates)]
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extern crate rustc_driver;
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use rustc_parse::{new_parser_from_file, unwrap_or_emit_fatal};
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use rustc_session::parse::ParseSess;
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use std::path::Path;
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#[path = "mod_dir_simple/test.rs"]
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mod gravy;
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pub fn main() {
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rustc_span::create_default_session_globals_then(|| parse());
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assert_eq!(gravy::foo(), 10);
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}
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fn parse() {
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let psess = ParseSess::new(vec![rustc_parse::DEFAULT_LOCALE_RESOURCE]);
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let path = Path::new(file!());
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let path = path.canonicalize().unwrap();
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let mut parser = unwrap_or_emit_fatal(new_parser_from_file(&psess, &path, None));
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let _ = parser.parse_crate_mod();
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}
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