Merge #485

485: Add type inference for a bunch of primitives r=flodiebold a=marcusklaas

This PR adds inference for `&str`, `&[u8]`, `char`, `bool`, floats and integers. For floats and integers it uses type variables to infer the exact type, i.e. `u32`, from context when it's not annotated explicitly.

I'm not quite happy with the implementation yet, but I think it mostly works now.

Co-authored-by: Marcus Klaas de Vries <[email protected]>

1 files changed, 1 insertions, 14 deletions

diff --git a/crates/ra_syntax/src/lexer/strings.rs b/crates/ra_syntax/src/lexer/strings.rs
index 5090feae6..0865b7f3b 100644
--- a/crates/ra_syntax/src/lexer/strings.rs
+++ b/crates/ra_syntax/src/lexer/strings.rs
@@ -49,7 +49,7 @@ pub(crate) fn scan_byte_char_or_string(ptr: &mut Ptr) -> SyntaxKind {
             BYTE_STRING
         }
         'r' => {
-            scan_raw_byte_string(ptr);
+            scan_raw_string(ptr);
             RAW_BYTE_STRING
         }
         _ => unreachable!(),
@@ -108,16 +108,3 @@ fn scan_byte(ptr: &mut Ptr) {
 fn scan_byte_string(ptr: &mut Ptr) {
     scan_string(ptr)
 }
-
-fn scan_raw_byte_string(ptr: &mut Ptr) {
-    if !ptr.at('"') {
-        return;
-    }
-    ptr.bump();
-
-    while let Some(c) = ptr.bump() {
-        if c == '"' {
-            return;
-        }
-    }
-}