focus on flags for now

Author: jasonwilliams

core/parser/src/lexer/cursor.rs

@@ -179,6 +179,11 @@ impl<R: ReadChar> Cursor<R> {
             } else if let Some(byte) = self.next_char()? {
                 buf[count] = byte as u8;
                 count += 1;
+            } else if count >= buf.len() {
+                return Err(Error::new(
+                    ErrorKind::UnexpectedEof,
+                    "Unexpected end of buffer while taking characters",
+                ));
             } else {
                 // next_is_pred will return false if the next value is None so the None case should already be handled.
                 unreachable!();

core/parser/src/parser/expression/assignment/mod.rs

@@ -29,10 +29,7 @@ use crate::{
     Error,
 };
 use boa_ast::{
-    expression::{
-        operator::assign::{Assign, AssignOp, AssignTarget},
-        RegExpLiteral,
-    },
+    expression::operator::assign::{Assign, AssignOp, AssignTarget},
     operations::{bound_names, contains, lexically_declared_names, ContainsSymbol},
     Expression, Keyword, Punctuator, Span,
 };
@@ -150,13 +147,6 @@ where
                         .into());
                 }
             }
-            TokenKind::RegularExpressionLiteral(body, flags) => {
-                let node =
-                    RegExpLiteral::new(*body, *flags, cursor.peek(0, interner).or_abrupt()?.span())
-                        .into();
-                cursor.advance(interner);
-                return Ok(node);
-            }
             _ => {}
         }