Merge pull request #898 from dtolnay/lit

Parse integer suffix beginning with `E`
dtolnay · Sep 25, 2020 · 1e010ea · 1e010ea
2 parents 132bca5 + 9270f70
commit 1e010ea
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/src/lit.rs b/src/lit.rs
@@ -1359,7 +1359,10 @@ mod value {
                 // NOTE: Looking at a floating point literal, we don't want to
                 // consider these integers.
                 b'.' if base == 10 => return None,
-                b'e' | b'E' if base == 10 => return None,
+                b'e' | b'E' if base == 10 => match byte(s, 1) {
+                    b'-' | b'+' | b'0'..=b'9' => return None,
+                    _ => break,
+                },
                 _ => break,
             };
 

diff --git a/tests/test_lit.rs b/tests/test_lit.rs
@@ -151,6 +151,8 @@ fn ints() {
 
     test_int("5", 5, "");
     test_int("5u32", 5, "u32");
+    test_int("0E", 0, "E");
+    test_int("0ECMA", 0, "ECMA");
     test_int("0o0A", 0, "A");
     test_int("5_0", 50, "");
     test_int("5_____0_____", 50, "");