Aaron Hill 717fd665ad Make SourceMap available for early debug-printing of Spans ... Normally, we debug-print `Spans` using the `SourceMap` retrieved from the global `TyCtxt`. However, we fall back to printing out the `Span`'s raw fields (instead of a file and line number) when we try to print a `Span` before a `TyCtxt` is available. This makes debugging early phases of the compile, such as parsing, much more difficult. This commit stores a `SourceMap` in `rustc_span::GlOBALS` as a fallback. When a `TyCtxt` is not available, we try to retrieve one from `GLOBALS` - only if this is not available do we fall back to the raw field output. I'm not sure how to write a test for this - however, this can be verified locally by setting `RUSTC_LOG="rustc_parse=debug"`, and verifying that the output contains filenames and line numbers.		2020-05-31 17:30:55 -04:00
..
build.rs	Locate rustc binary similarly to codegen backend loading	2019-09-10 16:57:14 -04:00
callbacks.rs	Query-ify Instance::resolve	2020-04-05 01:21:36 -04:00
Cargo.toml	Remove unused dependencies	2020-04-20 17:59:27 +09:00
interface.rs	Make SourceMap available for early debug-printing of Spans	2020-05-31 17:30:55 -04:00
lib.rs	Depend on libc from crates.io	2020-04-11 11:07:04 -04:00
passes.rs	more LocalDefIds	2020-05-30 12:22:29 +02:00
proc_macro_decls.rs	librustc_middle: return LocalDefId instead of DefId in local_def_id	2020-04-23 23:14:07 +01:00
queries.rs	Use OnceCell instead of Once	2020-05-22 13:31:02 -07:00
tests.rs	Rollup merge of #72669 - petrochenkov:smclean, r=Mark-Simulacrum	2020-05-30 23:08:55 +02:00
util.rs	rustc_session: Cleanup session creation	2020-05-27 22:32:24 +03:00