Merge #2205

2205: Implement bulitin line! macro r=matklad a=edwin0cheng

This PR implements bulitin macro `line!` and add basic infra-structure for other bulitin macros:

1. Extend `MacroDefId` to support builtin macros
2. Add a `quote!` macro for simple quasi quoting.

Note that for support others builtin macros, eager macro expansion have to be supported first, this PR not try to handle it. :)

Co-authored-by: Edwin Cheng <[email protected]>

1 files changed, 3 insertions, 0 deletions

diff --git a/crates/ra_hir_expand/src/name.rs b/crates/ra_hir_expand/src/name.rs
index 720896ee8..1bf17d12b 100644
--- a/crates/ra_hir_expand/src/name.rs
+++ b/crates/ra_hir_expand/src/name.rs
@@ -140,3 +140,6 @@ pub const RESULT_TYPE: Name = Name::new_inline_ascii(6, b"Result");
 pub const OUTPUT_TYPE: Name = Name::new_inline_ascii(6, b"Output");
 pub const TARGET_TYPE: Name = Name::new_inline_ascii(6, b"Target");
 pub const BOX_TYPE: Name = Name::new_inline_ascii(3, b"Box");
+
+// Builtin Macros
+pub const LINE_MACRO: Name = Name::new_inline_ascii(4, b"line");