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tokenizer: Fix index-out-of-bounds on string_literal_backslash right before EOF #9808

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Merged
merged 1 commit into from
Sep 21, 2021
Merged

tokenizer: Fix index-out-of-bounds on string_literal_backslash right before EOF #9808

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6 changes: 5 additions & 1 deletion lib/std/zig/tokenizer.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -700,7 +700,7 @@ pub const Tokenizer = struct {
},

.string_literal_backslash => switch (c) {
'\n' => {
0, '\n' => {
result.tag = .invalid;
break;
},
Expand Down Expand Up @@ -1919,6 +1919,10 @@ test "tokenizer - invalid builtin identifiers" {
try testTokenize("@0()", &.{ .invalid, .integer_literal, .l_paren, .r_paren });
}

test "tokenizer - backslash before eof in string literal" {
try testTokenize("\"\\", &.{.invalid});
}

fn testTokenize(source: [:0]const u8, expected_tokens: []const Token.Tag) !void {
var tokenizer = Tokenizer.init(source);
for (expected_tokens) |expected_token_id| {
Expand Down