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| author | Vadim Petrochenkov <vadim.petrochenkov@gmail.com> | 2019-08-02 00:26:40 +0300 |
|---|---|---|
| committer | Vadim Petrochenkov <vadim.petrochenkov@gmail.com> | 2019-08-02 01:59:01 +0300 |
| commit | 310b9fc76002066feb89dcfbf8e88b34fe5f4ad3 (patch) | |
| tree | e501e5e1aea23c56ae22a86b18215da00e07b3c4 /src/libsyntax/parse/lexer/mod.rs | |
| parent | a332e224a3bc2925fea584337d2d30e1186672be (diff) | |
| download | rust-310b9fc76002066feb89dcfbf8e88b34fe5f4ad3.tar.gz rust-310b9fc76002066feb89dcfbf8e88b34fe5f4ad3.zip | |
libsyntax: Unconfigure tests during normal build
Diffstat (limited to 'src/libsyntax/parse/lexer/mod.rs')
| -rw-r--r-- | src/libsyntax/parse/lexer/mod.rs | 262 |
1 files changed, 3 insertions, 259 deletions
diff --git a/src/libsyntax/parse/lexer/mod.rs b/src/libsyntax/parse/lexer/mod.rs index 263eb1ac7a4..950b1b2ff53 100644 --- a/src/libsyntax/parse/lexer/mod.rs +++ b/src/libsyntax/parse/lexer/mod.rs @@ -15,6 +15,9 @@ use std::convert::TryInto; use rustc_data_structures::sync::Lrc; use log::debug; +#[cfg(test)] +mod tests; + pub mod comments; mod tokentrees; mod unicode_chars; @@ -777,262 +780,3 @@ fn is_block_doc_comment(s: &str) -> bool { debug!("is {:?} a doc comment? {}", s, res); res } - -#[cfg(test)] -mod tests { - use super::*; - - use crate::ast::CrateConfig; - use crate::symbol::Symbol; - use crate::source_map::{SourceMap, FilePathMapping}; - use crate::feature_gate::UnstableFeatures; - use crate::parse::token; - use crate::diagnostics::plugin::ErrorMap; - use crate::with_default_globals; - use std::io; - use std::path::PathBuf; - use syntax_pos::{BytePos, Span, NO_EXPANSION, edition::Edition}; - use rustc_data_structures::fx::{FxHashSet, FxHashMap}; - use rustc_data_structures::sync::{Lock, Once}; - - fn mk_sess(sm: Lrc<SourceMap>) -> ParseSess { - let emitter = errors::emitter::EmitterWriter::new(Box::new(io::sink()), - Some(sm.clone()), - false, - false, - false); - ParseSess { - span_diagnostic: errors::Handler::with_emitter(true, None, Box::new(emitter)), - unstable_features: UnstableFeatures::from_environment(), - config: CrateConfig::default(), - included_mod_stack: Lock::new(Vec::new()), - source_map: sm, - missing_fragment_specifiers: Lock::new(FxHashSet::default()), - raw_identifier_spans: Lock::new(Vec::new()), - registered_diagnostics: Lock::new(ErrorMap::new()), - buffered_lints: Lock::new(vec![]), - edition: Edition::from_session(), - ambiguous_block_expr_parse: Lock::new(FxHashMap::default()), - param_attr_spans: Lock::new(Vec::new()), - let_chains_spans: Lock::new(Vec::new()), - async_closure_spans: Lock::new(Vec::new()), - injected_crate_name: Once::new(), - } - } - - // open 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::new(BytePos(21), BytePos(23), NO_EXPANSION), - ); - 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::new(BytePos(24), BytePos(28), NO_EXPANSION), - ); - 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)) - }) - } - - // check that the given reader produces the desired stream - // of tokens (stop checking after exhausting the expected vec) - fn check_tokenization(mut string_reader: StringReader<'_>, expected: Vec<TokenKind>) { - for expected_tok in &expected { - assert_eq!(&string_reader.next_token(), expected_tok); - } - } - - // make 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 doublecolonparsing() { - 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 dcparsing_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::ModSep, mk_ident("b")]); - }) - } - - #[test] - fn dcparsing_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::ModSep, mk_ident("b")]); - }) - } - - #[test] - fn dcparsing_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::ModSep, 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"))); - }) - } -} |
