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| author | Stefan Lankes <slankes@eonerc.rwth-aachen.de> | 2019-11-13 00:24:37 +0100 |
|---|---|---|
| committer | Stefan Lankes <slankes@eonerc.rwth-aachen.de> | 2019-11-13 00:24:37 +0100 |
| commit | 88717319142e162ae2f48124d94f33d2c21bc2ce (patch) | |
| tree | e50a968f836c55007e9bc8f305d4f0f80aca042c /src/libsyntax/parse/lexer/tests.rs | |
| parent | 969b74144641bf1c8ae5aba0581f4b52a4c15bac (diff) | |
| parent | 4f03f4a989d1c8346c19dfb417a77c09b34408b8 (diff) | |
| download | rust-88717319142e162ae2f48124d94f33d2c21bc2ce.tar.gz rust-88717319142e162ae2f48124d94f33d2c21bc2ce.zip | |
Merge remote-tracking branch 'rust-lang/master' into hermit
Diffstat (limited to 'src/libsyntax/parse/lexer/tests.rs')
| -rw-r--r-- | src/libsyntax/parse/lexer/tests.rs | 269 |
1 files changed, 0 insertions, 269 deletions
diff --git a/src/libsyntax/parse/lexer/tests.rs b/src/libsyntax/parse/lexer/tests.rs deleted file mode 100644 index de301b1fc49..00000000000 --- a/src/libsyntax/parse/lexer/tests.rs +++ /dev/null @@ -1,269 +0,0 @@ -use super::*; - -use crate::symbol::Symbol; -use crate::source_map::{SourceMap, FilePathMapping}; -use crate::parse::token; -use crate::with_default_globals; - -use errors::{Handler, emitter::EmitterWriter}; -use std::io; -use std::path::PathBuf; -use syntax_pos::{BytePos, Span}; - -fn mk_sess(sm: Lrc<SourceMap>) -> ParseSess { - let emitter = EmitterWriter::new( - Box::new(io::sink()), - Some(sm.clone()), - false, - false, - false, - None, - false, - ); - ParseSess::with_span_handler(Handler::with_emitter(true, None, Box::new(emitter)), sm) -} - -// Creates a string reader for the given string. -fn setup<'a>(sm: &SourceMap, - sess: &'a ParseSess, - teststr: String) - -> StringReader<'a> { - let sf = sm.new_source_file(PathBuf::from(teststr.clone()).into(), teststr); - StringReader::new(sess, sf, None) -} - -#[test] -fn t1() { - with_default_globals(|| { - let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); - let sh = mk_sess(sm.clone()); - let mut string_reader = setup( - &sm, - &sh, - "/* my source file */ fn main() { println!(\"zebra\"); }\n".to_string(), - ); - assert_eq!(string_reader.next_token(), token::Comment); - assert_eq!(string_reader.next_token(), token::Whitespace); - let tok1 = string_reader.next_token(); - let tok2 = Token::new( - mk_ident("fn"), - Span::with_root_ctxt(BytePos(21), BytePos(23)), - ); - assert_eq!(tok1.kind, tok2.kind); - assert_eq!(tok1.span, tok2.span); - assert_eq!(string_reader.next_token(), token::Whitespace); - // Read another token. - let tok3 = string_reader.next_token(); - assert_eq!(string_reader.pos.clone(), BytePos(28)); - let tok4 = Token::new( - mk_ident("main"), - Span::with_root_ctxt(BytePos(24), BytePos(28)), - ); - assert_eq!(tok3.kind, tok4.kind); - assert_eq!(tok3.span, tok4.span); - - assert_eq!(string_reader.next_token(), token::OpenDelim(token::Paren)); - assert_eq!(string_reader.pos.clone(), BytePos(29)) - }) -} - -// Checks that the given reader produces the desired stream -// of tokens (stop checking after exhausting `expected`). -fn check_tokenization(mut string_reader: StringReader<'_>, expected: Vec<TokenKind>) { - for expected_tok in &expected { - assert_eq!(&string_reader.next_token(), expected_tok); - } -} - -// Makes the identifier by looking up the string in the interner. -fn mk_ident(id: &str) -> TokenKind { - token::Ident(Symbol::intern(id), false) -} - -fn mk_lit(kind: token::LitKind, symbol: &str, suffix: Option<&str>) -> TokenKind { - TokenKind::lit(kind, Symbol::intern(symbol), suffix.map(Symbol::intern)) -} - -#[test] -fn doublecolon_parsing() { - with_default_globals(|| { - let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); - let sh = mk_sess(sm.clone()); - check_tokenization( - setup(&sm, &sh, "a b".to_string()), - vec![mk_ident("a"), token::Whitespace, mk_ident("b")], - ); - }) -} - -#[test] -fn doublecolon_parsing_2() { - with_default_globals(|| { - let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); - let sh = mk_sess(sm.clone()); - check_tokenization( - setup(&sm, &sh, "a::b".to_string()), - vec![mk_ident("a"), token::Colon, token::Colon, mk_ident("b")], - ); - }) -} - -#[test] -fn doublecolon_parsing_3() { - with_default_globals(|| { - let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); - let sh = mk_sess(sm.clone()); - check_tokenization( - setup(&sm, &sh, "a ::b".to_string()), - vec![mk_ident("a"), token::Whitespace, token::Colon, token::Colon, mk_ident("b")], - ); - }) -} - -#[test] -fn doublecolon_parsing_4() { - with_default_globals(|| { - let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); - let sh = mk_sess(sm.clone()); - check_tokenization( - setup(&sm, &sh, "a:: b".to_string()), - vec![mk_ident("a"), token::Colon, token::Colon, token::Whitespace, mk_ident("b")], - ); - }) -} - -#[test] -fn character_a() { - with_default_globals(|| { - let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); - let sh = mk_sess(sm.clone()); - assert_eq!( - setup(&sm, &sh, "'a'".to_string()).next_token(), - mk_lit(token::Char, "a", None), - ); - }) -} - -#[test] -fn character_space() { - with_default_globals(|| { - let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); - let sh = mk_sess(sm.clone()); - assert_eq!( - setup(&sm, &sh, "' '".to_string()).next_token(), - mk_lit(token::Char, " ", None), - ); - }) -} - -#[test] -fn character_escaped() { - with_default_globals(|| { - let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); - let sh = mk_sess(sm.clone()); - assert_eq!( - setup(&sm, &sh, "'\\n'".to_string()).next_token(), - mk_lit(token::Char, "\\n", None), - ); - }) -} - -#[test] -fn lifetime_name() { - with_default_globals(|| { - let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); - let sh = mk_sess(sm.clone()); - assert_eq!( - setup(&sm, &sh, "'abc".to_string()).next_token(), - token::Lifetime(Symbol::intern("'abc")), - ); - }) -} - -#[test] -fn raw_string() { - with_default_globals(|| { - let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); - let sh = mk_sess(sm.clone()); - assert_eq!( - setup(&sm, &sh, "r###\"\"#a\\b\x00c\"\"###".to_string()).next_token(), - mk_lit(token::StrRaw(3), "\"#a\\b\x00c\"", None), - ); - }) -} - -#[test] -fn literal_suffixes() { - with_default_globals(|| { - let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); - let sh = mk_sess(sm.clone()); - macro_rules! test { - ($input: expr, $tok_type: ident, $tok_contents: expr) => {{ - assert_eq!( - setup(&sm, &sh, format!("{}suffix", $input)).next_token(), - mk_lit(token::$tok_type, $tok_contents, Some("suffix")), - ); - // with a whitespace separator - assert_eq!( - setup(&sm, &sh, format!("{} suffix", $input)).next_token(), - mk_lit(token::$tok_type, $tok_contents, None), - ); - }} - } - - test!("'a'", Char, "a"); - test!("b'a'", Byte, "a"); - test!("\"a\"", Str, "a"); - test!("b\"a\"", ByteStr, "a"); - test!("1234", Integer, "1234"); - test!("0b101", Integer, "0b101"); - test!("0xABC", Integer, "0xABC"); - test!("1.0", Float, "1.0"); - test!("1.0e10", Float, "1.0e10"); - - assert_eq!( - setup(&sm, &sh, "2us".to_string()).next_token(), - mk_lit(token::Integer, "2", Some("us")), - ); - assert_eq!( - setup(&sm, &sh, "r###\"raw\"###suffix".to_string()).next_token(), - mk_lit(token::StrRaw(3), "raw", Some("suffix")), - ); - assert_eq!( - setup(&sm, &sh, "br###\"raw\"###suffix".to_string()).next_token(), - mk_lit(token::ByteStrRaw(3), "raw", Some("suffix")), - ); - }) -} - -#[test] -fn line_doc_comments() { - assert!(is_doc_comment("///")); - assert!(is_doc_comment("/// blah")); - assert!(!is_doc_comment("////")); -} - -#[test] -fn nested_block_comments() { - with_default_globals(|| { - let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); - let sh = mk_sess(sm.clone()); - let mut lexer = setup(&sm, &sh, "/* /* */ */'a'".to_string()); - assert_eq!(lexer.next_token(), token::Comment); - assert_eq!(lexer.next_token(), mk_lit(token::Char, "a", None)); - }) -} - -#[test] -fn crlf_comments() { - with_default_globals(|| { - let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); - let sh = mk_sess(sm.clone()); - let mut lexer = setup(&sm, &sh, "// test\r\n/// test\r\n".to_string()); - let comment = lexer.next_token(); - assert_eq!(comment.kind, token::Comment); - assert_eq!((comment.span.lo(), comment.span.hi()), (BytePos(0), BytePos(7))); - assert_eq!(lexer.next_token(), token::Whitespace); - assert_eq!(lexer.next_token(), token::DocComment(Symbol::intern("/// test"))); - }) -} |
