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-rw-r--r--third_party/rust/cssparser/src/tests.rs1362
1 files changed, 1362 insertions, 0 deletions
diff --git a/third_party/rust/cssparser/src/tests.rs b/third_party/rust/cssparser/src/tests.rs
new file mode 100644
index 0000000000..f9dea19325
--- /dev/null
+++ b/third_party/rust/cssparser/src/tests.rs
@@ -0,0 +1,1362 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#[cfg(feature = "bench")]
+extern crate test;
+
+use encoding_rs;
+use serde_json::{self, json, Map, Value};
+
+#[cfg(feature = "bench")]
+use self::test::Bencher;
+
+use super::{
+ parse_important, parse_nth, parse_one_declaration, parse_one_rule, stylesheet_encoding,
+ AtRuleParser, BasicParseError, BasicParseErrorKind, CowRcStr, DeclarationParser, Delimiter,
+ EncodingSupport, ParseError, ParseErrorKind, Parser, ParserInput, ParserState,
+ QualifiedRuleParser, RuleBodyItemParser, RuleBodyParser, SourceLocation, StyleSheetParser,
+ ToCss, Token, TokenSerializationType, UnicodeRange,
+};
+
+macro_rules! JArray {
+ ($($e: expr,)*) => { JArray![ $( $e ),* ] };
+ ($($e: expr),*) => { Value::Array(vec!( $( $e.to_json() ),* )) }
+}
+
+fn almost_equals(a: &Value, b: &Value) -> bool {
+ match (a, b) {
+ (&Value::Number(ref a), &Value::Number(ref b)) => {
+ let a = a.as_f64().unwrap();
+ let b = b.as_f64().unwrap();
+ (a - b).abs() <= a.abs() * 1e-6
+ }
+
+ (&Value::Bool(a), &Value::Bool(b)) => a == b,
+ (&Value::String(ref a), &Value::String(ref b)) => a == b,
+ (&Value::Array(ref a), &Value::Array(ref b)) => {
+ a.len() == b.len()
+ && a.iter()
+ .zip(b.iter())
+ .all(|(ref a, ref b)| almost_equals(*a, *b))
+ }
+ (&Value::Object(_), &Value::Object(_)) => panic!("Not implemented"),
+ (&Value::Null, &Value::Null) => true,
+ _ => false,
+ }
+}
+
+fn normalize(json: &mut Value) {
+ match *json {
+ Value::Array(ref mut list) => {
+ for item in list.iter_mut() {
+ normalize(item)
+ }
+ }
+ Value::String(ref mut s) => {
+ if *s == "extra-input" || *s == "empty" {
+ *s = "invalid".to_string()
+ }
+ }
+ _ => {}
+ }
+}
+
+fn assert_json_eq(results: Value, mut expected: Value, message: &str) {
+ normalize(&mut expected);
+ if !almost_equals(&results, &expected) {
+ println!(
+ "{}",
+ ::difference::Changeset::new(
+ &serde_json::to_string_pretty(&results).unwrap(),
+ &serde_json::to_string_pretty(&expected).unwrap(),
+ "\n",
+ )
+ );
+ panic!("{}", message)
+ }
+}
+
+fn run_raw_json_tests<F: Fn(Value, Value) -> ()>(json_data: &str, run: F) {
+ let items = match serde_json::from_str(json_data) {
+ Ok(Value::Array(items)) => items,
+ other => panic!("Invalid JSON: {:?}", other),
+ };
+ assert!(items.len() % 2 == 0);
+ let mut input = None;
+ for item in items.into_iter() {
+ match (&input, item) {
+ (&None, json_obj) => input = Some(json_obj),
+ (&Some(_), expected) => {
+ let input = input.take().unwrap();
+ run(input, expected)
+ }
+ };
+ }
+}
+
+fn run_json_tests<F: Fn(&mut Parser) -> Value>(json_data: &str, parse: F) {
+ run_raw_json_tests(json_data, |input, expected| match input {
+ Value::String(input) => {
+ let mut parse_input = ParserInput::new(&input);
+ let result = parse(&mut Parser::new(&mut parse_input));
+ assert_json_eq(result, expected, &input);
+ }
+ _ => panic!("Unexpected JSON"),
+ });
+}
+
+#[test]
+fn component_value_list() {
+ run_json_tests(
+ include_str!("css-parsing-tests/component_value_list.json"),
+ |input| Value::Array(component_values_to_json(input)),
+ );
+}
+
+#[test]
+fn one_component_value() {
+ run_json_tests(
+ include_str!("css-parsing-tests/one_component_value.json"),
+ |input| {
+ let result: Result<Value, ParseError<()>> = input.parse_entirely(|input| {
+ Ok(one_component_value_to_json(input.next()?.clone(), input))
+ });
+ result.unwrap_or(JArray!["error", "invalid"])
+ },
+ );
+}
+
+#[test]
+fn declaration_list() {
+ run_json_tests(
+ include_str!("css-parsing-tests/declaration_list.json"),
+ |input| {
+ Value::Array(
+ RuleBodyParser::new(input, &mut JsonParser)
+ .map(|result| result.unwrap_or(JArray!["error", "invalid"]))
+ .collect(),
+ )
+ },
+ );
+}
+
+#[test]
+fn one_declaration() {
+ run_json_tests(
+ include_str!("css-parsing-tests/one_declaration.json"),
+ |input| {
+ parse_one_declaration(input, &mut JsonParser).unwrap_or(JArray!["error", "invalid"])
+ },
+ );
+}
+
+#[test]
+fn rule_list() {
+ run_json_tests(include_str!("css-parsing-tests/rule_list.json"), |input| {
+ Value::Array(
+ RuleBodyParser::new(input, &mut JsonParser)
+ .map(|result| result.unwrap_or(JArray!["error", "invalid"]))
+ .collect(),
+ )
+ });
+}
+
+#[test]
+fn stylesheet() {
+ run_json_tests(include_str!("css-parsing-tests/stylesheet.json"), |input| {
+ Value::Array(
+ StyleSheetParser::new(input, &mut JsonParser)
+ .map(|result| result.unwrap_or(JArray!["error", "invalid"]))
+ .collect(),
+ )
+ });
+}
+
+#[test]
+fn one_rule() {
+ run_json_tests(include_str!("css-parsing-tests/one_rule.json"), |input| {
+ parse_one_rule(input, &mut JsonParser).unwrap_or(JArray!["error", "invalid"])
+ });
+}
+
+#[test]
+fn stylesheet_from_bytes() {
+ pub struct EncodingRs;
+
+ impl EncodingSupport for EncodingRs {
+ type Encoding = &'static encoding_rs::Encoding;
+
+ fn utf8() -> Self::Encoding {
+ encoding_rs::UTF_8
+ }
+
+ fn is_utf16_be_or_le(encoding: &Self::Encoding) -> bool {
+ *encoding == encoding_rs::UTF_16LE || *encoding == encoding_rs::UTF_16BE
+ }
+
+ fn from_label(ascii_label: &[u8]) -> Option<Self::Encoding> {
+ encoding_rs::Encoding::for_label(ascii_label)
+ }
+ }
+
+ run_raw_json_tests(
+ include_str!("css-parsing-tests/stylesheet_bytes.json"),
+ |input, expected| {
+ let map = match input {
+ Value::Object(map) => map,
+ _ => panic!("Unexpected JSON"),
+ };
+
+ let result = {
+ let css = get_string(&map, "css_bytes")
+ .unwrap()
+ .chars()
+ .map(|c| {
+ assert!(c as u32 <= 0xFF);
+ c as u8
+ })
+ .collect::<Vec<u8>>();
+ let protocol_encoding_label =
+ get_string(&map, "protocol_encoding").map(|s| s.as_bytes());
+ let environment_encoding = get_string(&map, "environment_encoding")
+ .map(|s| s.as_bytes())
+ .and_then(EncodingRs::from_label);
+
+ let encoding = stylesheet_encoding::<EncodingRs>(
+ &css,
+ protocol_encoding_label,
+ environment_encoding,
+ );
+ let (css_unicode, used_encoding, _) = encoding.decode(&css);
+ let mut input = ParserInput::new(&css_unicode);
+ let input = &mut Parser::new(&mut input);
+ let rules = StyleSheetParser::new(input, &mut JsonParser)
+ .map(|result| result.unwrap_or(JArray!["error", "invalid"]))
+ .collect::<Vec<_>>();
+ JArray![rules, used_encoding.name().to_lowercase()]
+ };
+ assert_json_eq(result, expected, &Value::Object(map).to_string());
+ },
+ );
+
+ fn get_string<'a>(map: &'a Map<String, Value>, key: &str) -> Option<&'a str> {
+ match map.get(key) {
+ Some(&Value::String(ref s)) => Some(s),
+ Some(&Value::Null) => None,
+ None => None,
+ _ => panic!("Unexpected JSON"),
+ }
+ }
+}
+
+#[test]
+fn expect_no_error_token() {
+ let mut input = ParserInput::new("foo 4px ( / { !bar }");
+ assert!(Parser::new(&mut input).expect_no_error_token().is_ok());
+ let mut input = ParserInput::new(")");
+ assert!(Parser::new(&mut input).expect_no_error_token().is_err());
+ let mut input = ParserInput::new("}");
+ assert!(Parser::new(&mut input).expect_no_error_token().is_err());
+ let mut input = ParserInput::new("(a){]");
+ assert!(Parser::new(&mut input).expect_no_error_token().is_err());
+ let mut input = ParserInput::new("'\n'");
+ assert!(Parser::new(&mut input).expect_no_error_token().is_err());
+ let mut input = ParserInput::new("url('\n'");
+ assert!(Parser::new(&mut input).expect_no_error_token().is_err());
+ let mut input = ParserInput::new("url(a b)");
+ assert!(Parser::new(&mut input).expect_no_error_token().is_err());
+ let mut input = ParserInput::new("url(\u{7F}))");
+ assert!(Parser::new(&mut input).expect_no_error_token().is_err());
+}
+
+/// https://github.com/servo/rust-cssparser/issues/71
+#[test]
+fn outer_block_end_consumed() {
+ let mut input = ParserInput::new("(calc(true))");
+ let mut input = Parser::new(&mut input);
+ assert!(input.expect_parenthesis_block().is_ok());
+ assert!(input
+ .parse_nested_block(|input| input
+ .expect_function_matching("calc")
+ .map_err(Into::<ParseError<()>>::into))
+ .is_ok());
+ println!("{:?}", input.position());
+ assert!(input.next().is_err());
+}
+
+/// https://github.com/servo/rust-cssparser/issues/174
+#[test]
+fn bad_url_slice_out_of_bounds() {
+ let mut input = ParserInput::new("url(\u{1}\\");
+ let mut parser = Parser::new(&mut input);
+ let result = parser.next_including_whitespace_and_comments(); // This used to panic
+ assert_eq!(result, Ok(&Token::BadUrl("\u{1}\\".into())));
+}
+
+/// https://bugzilla.mozilla.org/show_bug.cgi?id=1383975
+#[test]
+fn bad_url_slice_not_at_char_boundary() {
+ let mut input = ParserInput::new("url(9\n۰");
+ let mut parser = Parser::new(&mut input);
+ let result = parser.next_including_whitespace_and_comments(); // This used to panic
+ assert_eq!(result, Ok(&Token::BadUrl("9\n۰".into())));
+}
+
+#[test]
+fn unquoted_url_escaping() {
+ let token = Token::UnquotedUrl(
+ "\
+ \x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f\x10\
+ \x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f \
+ !\"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]\
+ ^_`abcdefghijklmnopqrstuvwxyz{|}~\x7fé\
+ "
+ .into(),
+ );
+ let serialized = token.to_css_string();
+ assert_eq!(
+ serialized,
+ "\
+ url(\
+ \\1 \\2 \\3 \\4 \\5 \\6 \\7 \\8 \\9 \\a \\b \\c \\d \\e \\f \\10 \
+ \\11 \\12 \\13 \\14 \\15 \\16 \\17 \\18 \\19 \\1a \\1b \\1c \\1d \\1e \\1f \\20 \
+ !\\\"#$%&\\'\\(\\)*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\\\]\
+ ^_`abcdefghijklmnopqrstuvwxyz{|}~\\7f é\
+ )\
+ "
+ );
+ let mut input = ParserInput::new(&serialized);
+ assert_eq!(Parser::new(&mut input).next(), Ok(&token));
+}
+
+#[test]
+fn test_expect_url() {
+ fn parse<'a>(s: &mut ParserInput<'a>) -> Result<CowRcStr<'a>, BasicParseError<'a>> {
+ Parser::new(s).expect_url()
+ }
+ let mut input = ParserInput::new("url()");
+ assert_eq!(parse(&mut input).unwrap(), "");
+ let mut input = ParserInput::new("url( ");
+ assert_eq!(parse(&mut input).unwrap(), "");
+ let mut input = ParserInput::new("url( abc");
+ assert_eq!(parse(&mut input).unwrap(), "abc");
+ let mut input = ParserInput::new("url( abc \t)");
+ assert_eq!(parse(&mut input).unwrap(), "abc");
+ let mut input = ParserInput::new("url( 'abc' \t)");
+ assert_eq!(parse(&mut input).unwrap(), "abc");
+ let mut input = ParserInput::new("url(abc more stuff)");
+ assert!(parse(&mut input).is_err());
+ // The grammar at https://drafts.csswg.org/css-values/#urls plans for `<url-modifier>*`
+ // at the position of "more stuff", but no such modifier is defined yet.
+ let mut input = ParserInput::new("url('abc' more stuff)");
+ assert!(parse(&mut input).is_err());
+}
+
+#[test]
+fn nth() {
+ run_json_tests(include_str!("css-parsing-tests/An+B.json"), |input| {
+ input
+ .parse_entirely(|i| {
+ let result: Result<_, ParseError<()>> = parse_nth(i).map_err(Into::into);
+ result
+ })
+ .ok()
+ .map(|(v0, v1)| json!([v0, v1]))
+ .unwrap_or(Value::Null)
+ });
+}
+
+#[test]
+fn parse_comma_separated_ignoring_errors() {
+ let input = "red, green something, yellow, whatever, blue";
+ let mut input = ParserInput::new(input);
+ let mut input = Parser::new(&mut input);
+ let result = input.parse_comma_separated_ignoring_errors(|input| {
+ let loc = input.current_source_location();
+ let ident = input.expect_ident()?;
+ crate::color::parse_named_color(ident).map_err(|()| {
+ loc.new_unexpected_token_error::<ParseError<()>>(Token::Ident(ident.clone()))
+ })
+ });
+ assert_eq!(result.len(), 3);
+ assert_eq!(result[0], (255, 0, 0));
+ assert_eq!(result[1], (255, 255, 0));
+ assert_eq!(result[2], (0, 0, 255));
+}
+
+#[test]
+fn unicode_range() {
+ run_json_tests(include_str!("css-parsing-tests/urange.json"), |input| {
+ let result: Result<_, ParseError<()>> = input.parse_comma_separated(|input| {
+ let result = UnicodeRange::parse(input).ok().map(|r| (r.start, r.end));
+ if input.is_exhausted() {
+ Ok(result)
+ } else {
+ while let Ok(_) = input.next() {}
+ Ok(None)
+ }
+ });
+ result
+ .unwrap()
+ .iter()
+ .map(|v| {
+ if let Some((v0, v1)) = v {
+ json!([v0, v1])
+ } else {
+ Value::Null
+ }
+ })
+ .collect::<Vec<_>>()
+ .to_json()
+ });
+}
+
+#[test]
+fn serializer_not_preserving_comments() {
+ serializer(false)
+}
+
+#[test]
+fn serializer_preserving_comments() {
+ serializer(true)
+}
+
+fn serializer(preserve_comments: bool) {
+ run_json_tests(
+ include_str!("css-parsing-tests/component_value_list.json"),
+ |input| {
+ fn write_to(
+ mut previous_token: TokenSerializationType,
+ input: &mut Parser,
+ string: &mut String,
+ preserve_comments: bool,
+ ) {
+ while let Ok(token) = if preserve_comments {
+ input
+ .next_including_whitespace_and_comments()
+ .map(|t| t.clone())
+ } else {
+ input.next_including_whitespace().map(|t| t.clone())
+ } {
+ let token_type = token.serialization_type();
+ if !preserve_comments && previous_token.needs_separator_when_before(token_type)
+ {
+ string.push_str("/**/")
+ }
+ previous_token = token_type;
+ token.to_css(string).unwrap();
+ let closing_token = match token {
+ Token::Function(_) | Token::ParenthesisBlock => {
+ Some(Token::CloseParenthesis)
+ }
+ Token::SquareBracketBlock => Some(Token::CloseSquareBracket),
+ Token::CurlyBracketBlock => Some(Token::CloseCurlyBracket),
+ _ => None,
+ };
+ if let Some(closing_token) = closing_token {
+ let result: Result<_, ParseError<()>> = input.parse_nested_block(|input| {
+ write_to(previous_token, input, string, preserve_comments);
+ Ok(())
+ });
+ result.unwrap();
+ closing_token.to_css(string).unwrap();
+ }
+ }
+ }
+ let mut serialized = String::new();
+ write_to(
+ TokenSerializationType::Nothing,
+ input,
+ &mut serialized,
+ preserve_comments,
+ );
+ let mut input = ParserInput::new(&serialized);
+ let parser = &mut Parser::new(&mut input);
+ Value::Array(component_values_to_json(parser))
+ },
+ );
+}
+
+#[test]
+fn serialize_bad_tokens() {
+ let mut input = ParserInput::new("url(foo\\) b\\)ar)'ba\\'\"z\n4");
+ let mut parser = Parser::new(&mut input);
+
+ let token = parser.next().unwrap().clone();
+ assert!(matches!(token, Token::BadUrl(_)));
+ assert_eq!(token.to_css_string(), "url(foo\\) b\\)ar)");
+
+ let token = parser.next().unwrap().clone();
+ assert!(matches!(token, Token::BadString(_)));
+ assert_eq!(token.to_css_string(), "\"ba'\\\"z");
+
+ let token = parser.next().unwrap().clone();
+ assert!(matches!(token, Token::Number { .. }));
+ assert_eq!(token.to_css_string(), "4");
+
+ assert!(parser.next().is_err());
+}
+
+#[test]
+fn line_numbers() {
+ let mut input = ParserInput::new(concat!(
+ "fo\\30\r\n",
+ "0o bar/*\n",
+ "*/baz\r\n",
+ "\n",
+ "url(\r\n",
+ " u \r\n",
+ ")\"a\\\r\n",
+ "b\""
+ ));
+ let mut input = Parser::new(&mut input);
+ assert_eq!(
+ input.current_source_location(),
+ SourceLocation { line: 0, column: 1 }
+ );
+ assert_eq!(
+ input.next_including_whitespace(),
+ Ok(&Token::Ident("fo00o".into()))
+ );
+ assert_eq!(
+ input.current_source_location(),
+ SourceLocation { line: 1, column: 3 }
+ );
+ assert_eq!(
+ input.next_including_whitespace(),
+ Ok(&Token::WhiteSpace(" "))
+ );
+ assert_eq!(
+ input.current_source_location(),
+ SourceLocation { line: 1, column: 4 }
+ );
+ assert_eq!(
+ input.next_including_whitespace(),
+ Ok(&Token::Ident("bar".into()))
+ );
+ assert_eq!(
+ input.current_source_location(),
+ SourceLocation { line: 1, column: 7 }
+ );
+ assert_eq!(
+ input.next_including_whitespace_and_comments(),
+ Ok(&Token::Comment("\n"))
+ );
+ assert_eq!(
+ input.current_source_location(),
+ SourceLocation { line: 2, column: 3 }
+ );
+ assert_eq!(
+ input.next_including_whitespace(),
+ Ok(&Token::Ident("baz".into()))
+ );
+ assert_eq!(
+ input.current_source_location(),
+ SourceLocation { line: 2, column: 6 }
+ );
+ let state = input.state();
+
+ assert_eq!(
+ input.next_including_whitespace(),
+ Ok(&Token::WhiteSpace("\r\n\n"))
+ );
+ assert_eq!(
+ input.current_source_location(),
+ SourceLocation { line: 4, column: 1 }
+ );
+
+ assert_eq!(
+ state.source_location(),
+ SourceLocation { line: 2, column: 6 }
+ );
+
+ assert_eq!(
+ input.next_including_whitespace(),
+ Ok(&Token::UnquotedUrl("u".into()))
+ );
+ assert_eq!(
+ input.current_source_location(),
+ SourceLocation { line: 6, column: 2 }
+ );
+
+ assert_eq!(
+ input.next_including_whitespace(),
+ Ok(&Token::QuotedString("ab".into()))
+ );
+ assert_eq!(
+ input.current_source_location(),
+ SourceLocation { line: 7, column: 3 }
+ );
+ assert!(input.next_including_whitespace().is_err());
+}
+
+#[test]
+fn overflow() {
+ use std::iter::repeat;
+
+ let css = r"
+ 2147483646
+ 2147483647
+ 2147483648
+ 10000000000000
+ 1000000000000000000000000000000000000000
+ 1{309 zeros}
+
+ -2147483647
+ -2147483648
+ -2147483649
+ -10000000000000
+ -1000000000000000000000000000000000000000
+ -1{309 zeros}
+
+ 3.30282347e+38
+ 3.40282347e+38
+ 3.402824e+38
+
+ -3.30282347e+38
+ -3.40282347e+38
+ -3.402824e+38
+
+ "
+ .replace("{309 zeros}", &repeat('0').take(309).collect::<String>());
+ let mut input = ParserInput::new(&css);
+ let mut input = Parser::new(&mut input);
+
+ assert_eq!(input.expect_integer(), Ok(2147483646));
+ assert_eq!(input.expect_integer(), Ok(2147483647));
+ assert_eq!(input.expect_integer(), Ok(2147483647)); // Clamp on overflow
+ assert_eq!(input.expect_integer(), Ok(2147483647));
+ assert_eq!(input.expect_integer(), Ok(2147483647));
+ assert_eq!(input.expect_integer(), Ok(2147483647));
+
+ assert_eq!(input.expect_integer(), Ok(-2147483647));
+ assert_eq!(input.expect_integer(), Ok(-2147483648));
+ assert_eq!(input.expect_integer(), Ok(-2147483648)); // Clamp on overflow
+ assert_eq!(input.expect_integer(), Ok(-2147483648));
+ assert_eq!(input.expect_integer(), Ok(-2147483648));
+ assert_eq!(input.expect_integer(), Ok(-2147483648));
+
+ assert_eq!(input.expect_number(), Ok(3.30282347e+38));
+ assert_eq!(input.expect_number(), Ok(f32::MAX));
+ assert_eq!(input.expect_number(), Ok(f32::INFINITY));
+ assert!(f32::MAX != f32::INFINITY);
+
+ assert_eq!(input.expect_number(), Ok(-3.30282347e+38));
+ assert_eq!(input.expect_number(), Ok(f32::MIN));
+ assert_eq!(input.expect_number(), Ok(f32::NEG_INFINITY));
+ assert!(f32::MIN != f32::NEG_INFINITY);
+}
+
+#[test]
+fn line_delimited() {
+ let mut input = ParserInput::new(" { foo ; bar } baz;,");
+ let mut input = Parser::new(&mut input);
+ assert_eq!(input.next(), Ok(&Token::CurlyBracketBlock));
+ assert!({
+ let result: Result<_, ParseError<()>> =
+ input.parse_until_after(Delimiter::Semicolon, |_| Ok(42));
+ result
+ }
+ .is_err());
+ assert_eq!(input.next(), Ok(&Token::Comma));
+ assert!(input.next().is_err());
+}
+
+#[test]
+fn identifier_serialization() {
+ // Null bytes
+ assert_eq!(Token::Ident("\0".into()).to_css_string(), "\u{FFFD}");
+ assert_eq!(Token::Ident("a\0".into()).to_css_string(), "a\u{FFFD}");
+ assert_eq!(Token::Ident("\0b".into()).to_css_string(), "\u{FFFD}b");
+ assert_eq!(Token::Ident("a\0b".into()).to_css_string(), "a\u{FFFD}b");
+
+ // Replacement character
+ assert_eq!(Token::Ident("\u{FFFD}".into()).to_css_string(), "\u{FFFD}");
+ assert_eq!(
+ Token::Ident("a\u{FFFD}".into()).to_css_string(),
+ "a\u{FFFD}"
+ );
+ assert_eq!(
+ Token::Ident("\u{FFFD}b".into()).to_css_string(),
+ "\u{FFFD}b"
+ );
+ assert_eq!(
+ Token::Ident("a\u{FFFD}b".into()).to_css_string(),
+ "a\u{FFFD}b"
+ );
+
+ // Number prefix
+ assert_eq!(Token::Ident("0a".into()).to_css_string(), "\\30 a");
+ assert_eq!(Token::Ident("1a".into()).to_css_string(), "\\31 a");
+ assert_eq!(Token::Ident("2a".into()).to_css_string(), "\\32 a");
+ assert_eq!(Token::Ident("3a".into()).to_css_string(), "\\33 a");
+ assert_eq!(Token::Ident("4a".into()).to_css_string(), "\\34 a");
+ assert_eq!(Token::Ident("5a".into()).to_css_string(), "\\35 a");
+ assert_eq!(Token::Ident("6a".into()).to_css_string(), "\\36 a");
+ assert_eq!(Token::Ident("7a".into()).to_css_string(), "\\37 a");
+ assert_eq!(Token::Ident("8a".into()).to_css_string(), "\\38 a");
+ assert_eq!(Token::Ident("9a".into()).to_css_string(), "\\39 a");
+
+ // Letter number prefix
+ assert_eq!(Token::Ident("a0b".into()).to_css_string(), "a0b");
+ assert_eq!(Token::Ident("a1b".into()).to_css_string(), "a1b");
+ assert_eq!(Token::Ident("a2b".into()).to_css_string(), "a2b");
+ assert_eq!(Token::Ident("a3b".into()).to_css_string(), "a3b");
+ assert_eq!(Token::Ident("a4b".into()).to_css_string(), "a4b");
+ assert_eq!(Token::Ident("a5b".into()).to_css_string(), "a5b");
+ assert_eq!(Token::Ident("a6b".into()).to_css_string(), "a6b");
+ assert_eq!(Token::Ident("a7b".into()).to_css_string(), "a7b");
+ assert_eq!(Token::Ident("a8b".into()).to_css_string(), "a8b");
+ assert_eq!(Token::Ident("a9b".into()).to_css_string(), "a9b");
+
+ // Dash number prefix
+ assert_eq!(Token::Ident("-0a".into()).to_css_string(), "-\\30 a");
+ assert_eq!(Token::Ident("-1a".into()).to_css_string(), "-\\31 a");
+ assert_eq!(Token::Ident("-2a".into()).to_css_string(), "-\\32 a");
+ assert_eq!(Token::Ident("-3a".into()).to_css_string(), "-\\33 a");
+ assert_eq!(Token::Ident("-4a".into()).to_css_string(), "-\\34 a");
+ assert_eq!(Token::Ident("-5a".into()).to_css_string(), "-\\35 a");
+ assert_eq!(Token::Ident("-6a".into()).to_css_string(), "-\\36 a");
+ assert_eq!(Token::Ident("-7a".into()).to_css_string(), "-\\37 a");
+ assert_eq!(Token::Ident("-8a".into()).to_css_string(), "-\\38 a");
+ assert_eq!(Token::Ident("-9a".into()).to_css_string(), "-\\39 a");
+
+ // Double dash prefix
+ assert_eq!(Token::Ident("--a".into()).to_css_string(), "--a");
+
+ // Various tests
+ assert_eq!(
+ Token::Ident("\x01\x02\x1E\x1F".into()).to_css_string(),
+ "\\1 \\2 \\1e \\1f "
+ );
+ assert_eq!(
+ Token::Ident("\u{0080}\x2D\x5F\u{00A9}".into()).to_css_string(),
+ "\u{0080}\x2D\x5F\u{00A9}"
+ );
+ assert_eq!(Token::Ident("\x7F\u{0080}\u{0081}\u{0082}\u{0083}\u{0084}\u{0085}\u{0086}\u{0087}\u{0088}\u{0089}\
+ \u{008A}\u{008B}\u{008C}\u{008D}\u{008E}\u{008F}\u{0090}\u{0091}\u{0092}\u{0093}\u{0094}\u{0095}\u{0096}\
+ \u{0097}\u{0098}\u{0099}\u{009A}\u{009B}\u{009C}\u{009D}\u{009E}\u{009F}".into()).to_css_string(),
+ "\\7f \u{0080}\u{0081}\u{0082}\u{0083}\u{0084}\u{0085}\u{0086}\u{0087}\u{0088}\u{0089}\u{008A}\u{008B}\u{008C}\
+ \u{008D}\u{008E}\u{008F}\u{0090}\u{0091}\u{0092}\u{0093}\u{0094}\u{0095}\u{0096}\u{0097}\u{0098}\u{0099}\
+ \u{009A}\u{009B}\u{009C}\u{009D}\u{009E}\u{009F}");
+ assert_eq!(
+ Token::Ident("\u{00A0}\u{00A1}\u{00A2}".into()).to_css_string(),
+ "\u{00A0}\u{00A1}\u{00A2}"
+ );
+ assert_eq!(
+ Token::Ident("a0123456789b".into()).to_css_string(),
+ "a0123456789b"
+ );
+ assert_eq!(
+ Token::Ident("abcdefghijklmnopqrstuvwxyz".into()).to_css_string(),
+ "abcdefghijklmnopqrstuvwxyz"
+ );
+ assert_eq!(
+ Token::Ident("ABCDEFGHIJKLMNOPQRSTUVWXYZ".into()).to_css_string(),
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ );
+ assert_eq!(
+ Token::Ident("\x20\x21\x78\x79".into()).to_css_string(),
+ "\\ \\!xy"
+ );
+
+ // astral symbol (U+1D306 TETRAGRAM FOR CENTRE)
+ assert_eq!(
+ Token::Ident("\u{1D306}".into()).to_css_string(),
+ "\u{1D306}"
+ );
+}
+
+trait ToJson {
+ fn to_json(&self) -> Value;
+}
+
+impl<T> ToJson for T
+where
+ T: Clone,
+ Value: From<T>,
+{
+ fn to_json(&self) -> Value {
+ Value::from(self.clone())
+ }
+}
+
+impl<'a> ToJson for CowRcStr<'a> {
+ fn to_json(&self) -> Value {
+ let s: &str = &*self;
+ s.to_json()
+ }
+}
+
+#[bench]
+#[cfg(feature = "bench")]
+fn delimiter_from_byte(b: &mut Bencher) {
+ use crate::Delimiters;
+ b.iter(|| {
+ for _ in 0..1000 {
+ for i in 0..256 {
+ std::hint::black_box(Delimiters::from_byte(Some(i as u8)));
+ }
+ }
+ })
+}
+
+#[cfg(feature = "bench")]
+const BACKGROUND_IMAGE: &'static str = include_str!("big-data-url.css");
+
+#[cfg(feature = "bench")]
+#[bench]
+fn unquoted_url(b: &mut Bencher) {
+ b.iter(|| {
+ let mut input = ParserInput::new(BACKGROUND_IMAGE);
+ let mut input = Parser::new(&mut input);
+ input.look_for_var_or_env_functions();
+
+ let result = input.try_parse(|input| input.expect_url());
+
+ assert!(result.is_ok());
+
+ input.seen_var_or_env_functions();
+ (result.is_ok(), input.seen_var_or_env_functions())
+ })
+}
+
+#[cfg_attr(all(miri, feature = "skip_long_tests"), ignore)]
+#[cfg(feature = "bench")]
+#[bench]
+fn numeric(b: &mut Bencher) {
+ b.iter(|| {
+ for _ in 0..1000000 {
+ let mut input = ParserInput::new("10px");
+ let mut input = Parser::new(&mut input);
+ let _ = test::black_box(input.next());
+ }
+ })
+}
+
+struct JsonParser;
+
+#[cfg_attr(all(miri, feature = "skip_long_tests"), ignore)]
+#[test]
+fn no_stack_overflow_multiple_nested_blocks() {
+ let mut input: String = "{{".into();
+ for _ in 0..20 {
+ let dup = input.clone();
+ input.push_str(&dup);
+ }
+ let mut input = ParserInput::new(&input);
+ let mut input = Parser::new(&mut input);
+ while let Ok(..) = input.next() {}
+}
+
+impl<'i> DeclarationParser<'i> for JsonParser {
+ type Declaration = Value;
+ type Error = ();
+
+ fn parse_value<'t>(
+ &mut self,
+ name: CowRcStr<'i>,
+ input: &mut Parser<'i, 't>,
+ ) -> Result<Value, ParseError<'i, ()>> {
+ let mut value = vec![];
+ let mut important = false;
+ loop {
+ let start = input.state();
+ if let Ok(mut token) = input.next_including_whitespace().map(|t| t.clone()) {
+ // Hack to deal with css-parsing-tests assuming that
+ // `!important` in the middle of a declaration value is OK.
+ // This can never happen per spec
+ // (even CSS Variables forbid top-level `!`)
+ if token == Token::Delim('!') {
+ input.reset(&start);
+ if parse_important(input).is_ok() {
+ if input.is_exhausted() {
+ important = true;
+ break;
+ }
+ }
+ input.reset(&start);
+ token = input.next_including_whitespace().unwrap().clone();
+ }
+ value.push(one_component_value_to_json(token, input));
+ } else {
+ break;
+ }
+ }
+ Ok(JArray!["declaration", name, value, important,])
+ }
+}
+
+impl<'i> AtRuleParser<'i> for JsonParser {
+ type Prelude = Vec<Value>;
+ type AtRule = Value;
+ type Error = ();
+
+ fn parse_prelude<'t>(
+ &mut self,
+ name: CowRcStr<'i>,
+ input: &mut Parser<'i, 't>,
+ ) -> Result<Vec<Value>, ParseError<'i, ()>> {
+ let prelude = vec![
+ "at-rule".to_json(),
+ name.to_json(),
+ Value::Array(component_values_to_json(input)),
+ ];
+ match_ignore_ascii_case! { &*name,
+ "charset" => {
+ Err(input.new_error(BasicParseErrorKind::AtRuleInvalid(name.clone()).into()))
+ },
+ _ => Ok(prelude),
+ }
+ }
+
+ fn rule_without_block(
+ &mut self,
+ mut prelude: Vec<Value>,
+ _: &ParserState,
+ ) -> Result<Value, ()> {
+ prelude.push(Value::Null);
+ Ok(Value::Array(prelude))
+ }
+
+ fn parse_block<'t>(
+ &mut self,
+ mut prelude: Vec<Value>,
+ _: &ParserState,
+ input: &mut Parser<'i, 't>,
+ ) -> Result<Value, ParseError<'i, ()>> {
+ prelude.push(Value::Array(component_values_to_json(input)));
+ Ok(Value::Array(prelude))
+ }
+}
+
+impl<'i> QualifiedRuleParser<'i> for JsonParser {
+ type Prelude = Vec<Value>;
+ type QualifiedRule = Value;
+ type Error = ();
+
+ fn parse_prelude<'t>(
+ &mut self,
+ input: &mut Parser<'i, 't>,
+ ) -> Result<Vec<Value>, ParseError<'i, ()>> {
+ Ok(component_values_to_json(input))
+ }
+
+ fn parse_block<'t>(
+ &mut self,
+ prelude: Vec<Value>,
+ _: &ParserState,
+ input: &mut Parser<'i, 't>,
+ ) -> Result<Value, ParseError<'i, ()>> {
+ Ok(JArray![
+ "qualified rule",
+ prelude,
+ component_values_to_json(input),
+ ])
+ }
+}
+
+impl<'i> RuleBodyItemParser<'i, Value, ()> for JsonParser {
+ fn parse_qualified(&self) -> bool {
+ true
+ }
+ fn parse_declarations(&self) -> bool {
+ true
+ }
+}
+
+fn component_values_to_json(input: &mut Parser) -> Vec<Value> {
+ let mut values = vec![];
+ while let Ok(token) = input.next_including_whitespace().map(|t| t.clone()) {
+ values.push(one_component_value_to_json(token, input));
+ }
+ values
+}
+
+fn one_component_value_to_json(token: Token, input: &mut Parser) -> Value {
+ fn numeric(value: f32, int_value: Option<i32>, has_sign: bool) -> Vec<Value> {
+ vec![
+ Token::Number {
+ value: value,
+ int_value: int_value,
+ has_sign: has_sign,
+ }
+ .to_css_string()
+ .to_json(),
+ match int_value {
+ Some(i) => i.to_json(),
+ None => value.to_json(),
+ },
+ match int_value {
+ Some(_) => "integer",
+ None => "number",
+ }
+ .to_json(),
+ ]
+ }
+
+ fn nested(input: &mut Parser) -> Vec<Value> {
+ let result: Result<_, ParseError<()>> =
+ input.parse_nested_block(|input| Ok(component_values_to_json(input)));
+ result.unwrap()
+ }
+
+ match token {
+ Token::Ident(value) => JArray!["ident", value],
+ Token::AtKeyword(value) => JArray!["at-keyword", value],
+ Token::Hash(value) => JArray!["hash", value, "unrestricted"],
+ Token::IDHash(value) => JArray!["hash", value, "id"],
+ Token::QuotedString(value) => JArray!["string", value],
+ Token::UnquotedUrl(value) => JArray!["url", value],
+ Token::Delim('\\') => "\\".to_json(),
+ Token::Delim(value) => value.to_string().to_json(),
+
+ Token::Number {
+ value,
+ int_value,
+ has_sign,
+ } => Value::Array({
+ let mut v = vec!["number".to_json()];
+ v.extend(numeric(value, int_value, has_sign));
+ v
+ }),
+ Token::Percentage {
+ unit_value,
+ int_value,
+ has_sign,
+ } => Value::Array({
+ let mut v = vec!["percentage".to_json()];
+ v.extend(numeric(unit_value * 100., int_value, has_sign));
+ v
+ }),
+ Token::Dimension {
+ value,
+ int_value,
+ has_sign,
+ unit,
+ } => Value::Array({
+ let mut v = vec!["dimension".to_json()];
+ v.extend(numeric(value, int_value, has_sign));
+ v.push(unit.to_json());
+ v
+ }),
+
+ Token::WhiteSpace(_) => " ".to_json(),
+ Token::Comment(_) => "/**/".to_json(),
+ Token::Colon => ":".to_json(),
+ Token::Semicolon => ";".to_json(),
+ Token::Comma => ",".to_json(),
+ Token::IncludeMatch => "~=".to_json(),
+ Token::DashMatch => "|=".to_json(),
+ Token::PrefixMatch => "^=".to_json(),
+ Token::SuffixMatch => "$=".to_json(),
+ Token::SubstringMatch => "*=".to_json(),
+ Token::CDO => "<!--".to_json(),
+ Token::CDC => "-->".to_json(),
+
+ Token::Function(name) => Value::Array({
+ let mut v = vec!["function".to_json(), name.to_json()];
+ v.extend(nested(input));
+ v
+ }),
+ Token::ParenthesisBlock => Value::Array({
+ let mut v = vec!["()".to_json()];
+ v.extend(nested(input));
+ v
+ }),
+ Token::SquareBracketBlock => Value::Array({
+ let mut v = vec!["[]".to_json()];
+ v.extend(nested(input));
+ v
+ }),
+ Token::CurlyBracketBlock => Value::Array({
+ let mut v = vec!["{}".to_json()];
+ v.extend(nested(input));
+ v
+ }),
+ Token::BadUrl(_) => JArray!["error", "bad-url"],
+ Token::BadString(_) => JArray!["error", "bad-string"],
+ Token::CloseParenthesis => JArray!["error", ")"],
+ Token::CloseSquareBracket => JArray!["error", "]"],
+ Token::CloseCurlyBracket => JArray!["error", "}"],
+ }
+}
+
+/// A previous version of procedural-masquerade had a bug where it
+/// would normalize consecutive whitespace to a single space,
+/// including in string literals.
+#[test]
+fn procedural_masquerade_whitespace() {
+ ascii_case_insensitive_phf_map! {
+ map -> () = {
+ " \t\n" => ()
+ }
+ }
+ assert_eq!(map::get(" \t\n"), Some(&()));
+ assert_eq!(map::get(" "), None);
+
+ match_ignore_ascii_case! { " \t\n",
+ " " => panic!("1"),
+ " \t\n" => {},
+ _ => panic!("2"),
+ }
+
+ match_ignore_ascii_case! { " ",
+ " \t\n" => panic!("3"),
+ " " => {},
+ _ => panic!("4"),
+ }
+}
+
+#[test]
+fn parse_until_before_stops_at_delimiter_or_end_of_input() {
+ // For all j and k, inputs[i].1[j] should parse the same as inputs[i].1[k]
+ // when we use delimiters inputs[i].0.
+ let inputs = vec![
+ (
+ Delimiter::Bang | Delimiter::Semicolon,
+ // Note that the ';extra' is fine, because the ';' acts the same as
+ // the end of input.
+ vec!["token stream;extra", "token stream!", "token stream"],
+ ),
+ (Delimiter::Bang | Delimiter::Semicolon, vec![";", "!", ""]),
+ ];
+ for equivalent in inputs {
+ for (j, x) in equivalent.1.iter().enumerate() {
+ for y in equivalent.1[j + 1..].iter() {
+ let mut ix = ParserInput::new(x);
+ let mut ix = Parser::new(&mut ix);
+
+ let mut iy = ParserInput::new(y);
+ let mut iy = Parser::new(&mut iy);
+
+ let _ = ix.parse_until_before::<_, _, ()>(equivalent.0, |ix| {
+ iy.parse_until_before::<_, _, ()>(equivalent.0, |iy| {
+ loop {
+ let ox = ix.next();
+ let oy = iy.next();
+ assert_eq!(ox, oy);
+ if let Err(_) = ox {
+ break;
+ }
+ }
+ Ok(())
+ })
+ });
+ }
+ }
+ }
+}
+
+#[test]
+fn parser_maintains_current_line() {
+ let mut input = ParserInput::new("ident ident;\nident ident ident;\nident");
+ let mut parser = Parser::new(&mut input);
+ assert_eq!(parser.current_line(), "ident ident;");
+ assert_eq!(parser.next(), Ok(&Token::Ident("ident".into())));
+ assert_eq!(parser.next(), Ok(&Token::Ident("ident".into())));
+ assert_eq!(parser.next(), Ok(&Token::Semicolon));
+
+ assert_eq!(parser.next(), Ok(&Token::Ident("ident".into())));
+ assert_eq!(parser.current_line(), "ident ident ident;");
+ assert_eq!(parser.next(), Ok(&Token::Ident("ident".into())));
+ assert_eq!(parser.next(), Ok(&Token::Ident("ident".into())));
+ assert_eq!(parser.next(), Ok(&Token::Semicolon));
+
+ assert_eq!(parser.next(), Ok(&Token::Ident("ident".into())));
+ assert_eq!(parser.current_line(), "ident");
+}
+
+#[test]
+fn cdc_regression_test() {
+ let mut input = ParserInput::new("-->x");
+ let mut parser = Parser::new(&mut input);
+ parser.skip_cdc_and_cdo();
+ assert_eq!(parser.next(), Ok(&Token::Ident("x".into())));
+ assert_eq!(
+ parser.next(),
+ Err(BasicParseError {
+ kind: BasicParseErrorKind::EndOfInput,
+ location: SourceLocation { line: 0, column: 5 }
+ })
+ );
+}
+
+#[test]
+fn parse_entirely_reports_first_error() {
+ #[derive(PartialEq, Debug)]
+ enum E {
+ Foo,
+ }
+ let mut input = ParserInput::new("ident");
+ let mut parser = Parser::new(&mut input);
+ let result: Result<(), _> = parser.parse_entirely(|p| Err(p.new_custom_error(E::Foo)));
+ assert_eq!(
+ result,
+ Err(ParseError {
+ kind: ParseErrorKind::Custom(E::Foo),
+ location: SourceLocation { line: 0, column: 1 },
+ })
+ );
+}
+
+#[test]
+fn parse_sourcemapping_comments() {
+ let tests = vec![
+ ("/*# sourceMappingURL=here*/", Some("here")),
+ ("/*# sourceMappingURL=here */", Some("here")),
+ ("/*@ sourceMappingURL=here*/", Some("here")),
+ (
+ "/*@ sourceMappingURL=there*/ /*# sourceMappingURL=here*/",
+ Some("here"),
+ ),
+ ("/*# sourceMappingURL=here there */", Some("here")),
+ ("/*# sourceMappingURL= here */", Some("")),
+ ("/*# sourceMappingURL=*/", Some("")),
+ ("/*# sourceMappingUR=here */", None),
+ ("/*! sourceMappingURL=here */", None),
+ ("/*# sourceMappingURL = here */", None),
+ ("/* # sourceMappingURL=here */", None),
+ ];
+
+ for test in tests {
+ let mut input = ParserInput::new(test.0);
+ let mut parser = Parser::new(&mut input);
+ while let Ok(_) = parser.next_including_whitespace() {}
+ assert_eq!(parser.current_source_map_url(), test.1);
+ }
+}
+
+#[test]
+fn parse_sourceurl_comments() {
+ let tests = vec![
+ ("/*# sourceURL=here*/", Some("here")),
+ ("/*# sourceURL=here */", Some("here")),
+ ("/*@ sourceURL=here*/", Some("here")),
+ ("/*@ sourceURL=there*/ /*# sourceURL=here*/", Some("here")),
+ ("/*# sourceURL=here there */", Some("here")),
+ ("/*# sourceURL= here */", Some("")),
+ ("/*# sourceURL=*/", Some("")),
+ ("/*# sourceMappingUR=here */", None),
+ ("/*! sourceURL=here */", None),
+ ("/*# sourceURL = here */", None),
+ ("/* # sourceURL=here */", None),
+ ];
+
+ for test in tests {
+ let mut input = ParserInput::new(test.0);
+ let mut parser = Parser::new(&mut input);
+ while let Ok(_) = parser.next_including_whitespace() {}
+ assert_eq!(parser.current_source_url(), test.1);
+ }
+}
+
+#[cfg_attr(all(miri, feature = "skip_long_tests"), ignore)]
+#[test]
+fn roundtrip_percentage_token() {
+ fn test_roundtrip(value: &str) {
+ let mut input = ParserInput::new(value);
+ let mut parser = Parser::new(&mut input);
+ let token = parser.next().unwrap();
+ assert_eq!(token.to_css_string(), value);
+ }
+ // Test simple number serialization
+ for i in 0..101 {
+ test_roundtrip(&format!("{}%", i));
+ for j in 0..10 {
+ if j != 0 {
+ test_roundtrip(&format!("{}.{}%", i, j));
+ }
+ for k in 1..10 {
+ test_roundtrip(&format!("{}.{}{}%", i, j, k));
+ }
+ }
+ }
+}
+
+#[test]
+fn utf16_columns() {
+ // This particular test serves two purposes. First, it checks
+ // that the column number computations are correct. Second, it
+ // checks that tokenizer code paths correctly differentiate
+ // between the different UTF-8 encoding bytes. In particular
+ // different leader bytes and continuation bytes are treated
+ // differently, so we make sure to include all lengths in the
+ // tests, using the string "QΡ✈🆒". Also, remember that because
+ // the column is in units of UTF-16, the 4-byte sequence results
+ // in two columns.
+ let tests = vec![
+ ("", 1),
+ ("ascii", 6),
+ ("/*QΡ✈🆒*/", 10),
+ ("'QΡ✈🆒*'", 9),
+ ("\"\\\"'QΡ✈🆒*'", 12),
+ ("\\Q\\Ρ\\✈\\🆒", 10),
+ ("QΡ✈🆒", 6),
+ ("QΡ✈🆒\\Q\\Ρ\\✈\\🆒", 15),
+ ("newline\r\nQΡ✈🆒", 6),
+ ("url(QΡ✈🆒\\Q\\Ρ\\✈\\🆒)", 20),
+ ("url(QΡ✈🆒)", 11),
+ ("url(\r\nQΡ✈🆒\\Q\\Ρ\\✈\\🆒)", 16),
+ ("url(\r\nQΡ✈🆒\\Q\\Ρ\\✈\\🆒", 15),
+ ("url(\r\nQΡ✈🆒\\Q\\Ρ\\✈\\🆒 x", 17),
+ ("QΡ✈🆒()", 8),
+ // Test that under/over-flow of current_line_start_position is
+ // handled properly; see the special case in consume_4byte_intro.
+ ("🆒", 3),
+ ];
+
+ for test in tests {
+ let mut input = ParserInput::new(test.0);
+ let mut parser = Parser::new(&mut input);
+
+ // Read all tokens.
+ loop {
+ match parser.next() {
+ Err(BasicParseError {
+ kind: BasicParseErrorKind::EndOfInput,
+ ..
+ }) => {
+ break;
+ }
+ Err(_) => {
+ assert!(false);
+ }
+ Ok(_) => {}
+ };
+ }
+
+ // Check the resulting column.
+ assert_eq!(parser.current_source_location().column, test.1);
+ }
+}
+
+#[test]
+fn servo_define_css_keyword_enum() {
+ macro_rules! define_css_keyword_enum {
+ (pub enum $name:ident { $($variant:ident = $css:pat,)+ }) => {
+ #[derive(PartialEq, Debug)]
+ pub enum $name {
+ $($variant),+
+ }
+
+ impl $name {
+ pub fn from_ident(ident: &str) -> Result<$name, ()> {
+ match_ignore_ascii_case! { ident,
+ $($css => Ok($name::$variant),)+
+ _ => Err(())
+ }
+ }
+ }
+ }
+ }
+ define_css_keyword_enum! {
+ pub enum UserZoom {
+ Zoom = "zoom",
+ Fixed = "fixed",
+ }
+ }
+
+ assert_eq!(UserZoom::from_ident("fixed"), Ok(UserZoom::Fixed));
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 09:37:54 +0000