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Add Rust parser check for end of expression

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I noticed that "print 5," passed in Rust -- the parser wasn't checking
that the entire input was used.  This patch fixes the problem.  This
in turn pointed out another bug in the parser, namely that it didn't
lex the next token after handling a string token.  This is also fixed
here.
This commit is contained in:
Tom Tromey 2022-03-17 22:36:12 -06:00
parent 52a4a5885a
commit f77c52719d
2 changed files with 7 additions and 1 deletions
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6
gdb/rust-parse.c
View File

@ -271,7 +271,10 @@ struct rust_parser
operation_up parse_entry_point ()
{
lex ();
return parse_expr ();
operation_up result = parse_expr ();
if (current_token != 0)
error (_("Syntax error near '%s'"), pstate->prev_lexptr);
return result;
}
operation_up parse_tuple ();
@ -2020,6 +2023,7 @@ rust_parser::parse_atom (bool required)
case STRING:
result = parse_string ();
lex ();
break;
case BYTESTRING:

2
gdb/testsuite/gdb.rust/expr.exp
View File

@ -145,3 +145,5 @@ gdb_test "print 0x0 as fn(i64) -> ()" " = \\\(\\*mut fn \\\(i64\\\) -> \\\(\\\)\
gdb_test "print r#" "No symbol 'r' in current context"
gdb_test "printf \"%d %d\\n\", 23+1, 23-1" "24 22"
gdb_test "print 5," "Syntax error near ','"