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lib/std/lang/scanner/tests.rad
raw
| 1 | use std::lang::strings; |
| 2 | use std::mem; |
| 3 | use std::testing; |
| 4 | |
| 5 | /// String pool for testing. |
| 6 | unsafe static TEST_STRING_POOL: strings::Pool = strings::Pool { table: undefined, count: 0 }; |
| 7 | |
| 8 | /// Create a scanner backed by the test string pool. |
| 9 | fn testScanner(source: *[u8]) -> super::Scanner { |
| 10 | unsafe { |
| 11 | return super::scanner(super::SourceLoc::File("test.r"), source, &mut TEST_STRING_POOL); |
| 12 | } |
| 13 | } |
| 14 | |
| 15 | @test unsafe fn testScanTokens() throws (testing::TestError) { |
| 16 | let mut s = testScanner( |
| 17 | "'x' < fnord fnord: 0 => >> mod and nil" |
| 18 | ); |
| 19 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Char); |
| 20 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Lt); |
| 21 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Ident); |
| 22 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Ident); |
| 23 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Colon); |
| 24 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Number); |
| 25 | try testing::expect(super::next(&mut s).kind == super::TokenKind::FatArrow); |
| 26 | try testing::expect(super::next(&mut s).kind == super::TokenKind::GtGt); |
| 27 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Mod); |
| 28 | try testing::expect(super::next(&mut s).kind == super::TokenKind::And); |
| 29 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Nil); |
| 30 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Eof); |
| 31 | } |
| 32 | |
| 33 | @test unsafe fn testScanChars() throws (testing::TestError) { |
| 34 | let mut s = testScanner( |
| 35 | "'\\0'" |
| 36 | ); |
| 37 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Char); |
| 38 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Eof); |
| 39 | } |
| 40 | |
| 41 | @test unsafe fn testScanWhitespace() throws (testing::TestError) { |
| 42 | let mut s = testScanner( |
| 43 | " X\n\nY //\n Z//1 \n" |
| 44 | ); |
| 45 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Ident); |
| 46 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Ident); |
| 47 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Ident); |
| 48 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Eof); |
| 49 | } |
| 50 | |
| 51 | @test unsafe fn testScanIdentsAndKeywords() throws (testing::TestError) { |
| 52 | let mut s = testScanner( |
| 53 | "m mo mod modo" |
| 54 | ); |
| 55 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Ident); |
| 56 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Ident); |
| 57 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Mod); |
| 58 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Ident); |
| 59 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Eof); |
| 60 | } |
| 61 | |
| 62 | @test unsafe fn testScanIdentifiers() throws (testing::TestError) { |
| 63 | let mut s = testScanner( |
| 64 | "fnord::yikes no1 4j" |
| 65 | ); |
| 66 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Ident); |
| 67 | try testing::expect(super::next(&mut s).kind == super::TokenKind::ColonColon); |
| 68 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Ident); |
| 69 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Ident); |
| 70 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Number); |
| 71 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Ident); |
| 72 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Eof); |
| 73 | } |
| 74 | |
| 75 | @test unsafe fn testScanAtIdentifiers() throws (testing::TestError) { |
| 76 | let mut s = testScanner( |
| 77 | "@default @" |
| 78 | ); |
| 79 | try testing::expect(super::next(&mut s).kind == super::TokenKind::AtIdent); |
| 80 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Invalid); |
| 81 | } |
| 82 | |
| 83 | @test unsafe fn testScanStrings() throws (testing::TestError) { |
| 84 | let mut s = testScanner( |
| 85 | "\"Hello World!\" \"\\\"\"" |
| 86 | ); |
| 87 | let mut t: super::Token = super::next(&mut s); |
| 88 | try testing::expect(t.kind == super::TokenKind::String); |
| 89 | try testing::expect(t.source.len == 14); // Includes quotes. |
| 90 | try testing::expect(mem::eq(t.source, "\"Hello World!\"")); |
| 91 | |
| 92 | set t = super::next(&mut s); |
| 93 | try testing::expect(t.kind == super::TokenKind::String); |
| 94 | try testing::expect(t.source.len == 4); |
| 95 | try testing::expect(mem::eq(t.source, "\"\\\"\"")); |
| 96 | } |
| 97 | |
| 98 | @test unsafe fn testGetLocation() throws (testing::TestError) { |
| 99 | let mut s = testScanner( |
| 100 | "abc\n def\n ghi" |
| 101 | ); |
| 102 | let mut tok: super::Token = super::next(&mut s); |
| 103 | try testing::expect(tok.kind == super::TokenKind::Ident); |
| 104 | try testing::expect(tok.source.len == 3); |
| 105 | |
| 106 | if let loc = super::getLocation(s.sourceLoc, s.source, tok.offset) { |
| 107 | try testing::expect(loc.line == 1); |
| 108 | try testing::expect(loc.col == 1); |
| 109 | } else { |
| 110 | try testing::expect(false); |
| 111 | } |
| 112 | set tok = super::next(&mut s); |
| 113 | try testing::expect(tok.kind == super::TokenKind::Ident); |
| 114 | try testing::expect(tok.source.len == 3); |
| 115 | |
| 116 | if let loc = super::getLocation(s.sourceLoc, s.source, tok.offset) { |
| 117 | try testing::expect(loc.line == 2); |
| 118 | try testing::expect(loc.col == 3); |
| 119 | } else { |
| 120 | try testing::expect(false); |
| 121 | } |
| 122 | set tok = super::next(&mut s); |
| 123 | try testing::expect(tok.kind == super::TokenKind::Ident); |
| 124 | try testing::expect(tok.source.len == 3); |
| 125 | |
| 126 | if let loc = super::getLocation(s.sourceLoc, s.source, tok.offset) { |
| 127 | try testing::expect(loc.line == 3); |
| 128 | try testing::expect(loc.col == 5); |
| 129 | } else { |
| 130 | try testing::expect(false); |
| 131 | } |
| 132 | } |
| 133 | |
| 134 | @test unsafe fn testScanEmptyInput() throws (testing::TestError) { |
| 135 | let mut s = testScanner(""); |
| 136 | let tok: super::Token = super::next(&mut s); |
| 137 | |
| 138 | try testing::expect(tok.kind == super::TokenKind::Eof); |
| 139 | try testing::expect(tok.source.len == 0); |
| 140 | try testing::expect(tok.offset == 0); |
| 141 | } |
| 142 | |
| 143 | @test unsafe fn testScanSingleCharTokens() throws (testing::TestError) { |
| 144 | let mut s = testScanner( |
| 145 | "(){}[] ,;+-*~|&" |
| 146 | ); |
| 147 | try testing::expect(super::next(&mut s).kind == super::TokenKind::LParen); |
| 148 | try testing::expect(super::next(&mut s).kind == super::TokenKind::RParen); |
| 149 | try testing::expect(super::next(&mut s).kind == super::TokenKind::LBrace); |
| 150 | try testing::expect(super::next(&mut s).kind == super::TokenKind::RBrace); |
| 151 | try testing::expect(super::next(&mut s).kind == super::TokenKind::LBracket); |
| 152 | try testing::expect(super::next(&mut s).kind == super::TokenKind::RBracket); |
| 153 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Comma); |
| 154 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Semicolon); |
| 155 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Plus); |
| 156 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Minus); |
| 157 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Star); |
| 158 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Tilde); |
| 159 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Pipe); |
| 160 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Amp); |
| 161 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Eof); |
| 162 | } |
| 163 | |
| 164 | @test unsafe fn testScanDoubleCharTokens() throws (testing::TestError) { |
| 165 | let mut s = testScanner( |
| 166 | "== <> <= >= < > >> << -> =>" |
| 167 | ); |
| 168 | try testing::expect(super::next(&mut s).kind == super::TokenKind::EqualEqual); |
| 169 | try testing::expect(super::next(&mut s).kind == super::TokenKind::LtGt); |
| 170 | try testing::expect(super::next(&mut s).kind == super::TokenKind::LtEqual); |
| 171 | try testing::expect(super::next(&mut s).kind == super::TokenKind::GtEqual); |
| 172 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Lt); |
| 173 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Gt); |
| 174 | try testing::expect(super::next(&mut s).kind == super::TokenKind::GtGt); |
| 175 | try testing::expect(super::next(&mut s).kind == super::TokenKind::LtLt); |
| 176 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Arrow); |
| 177 | try testing::expect(super::next(&mut s).kind == super::TokenKind::FatArrow); |
| 178 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Eof); |
| 179 | } |
| 180 | |
| 181 | @test unsafe fn testScanIdentifierLengths() throws (testing::TestError) { |
| 182 | let mut s = testScanner( |
| 183 | "sho xyz981 lal_lel" |
| 184 | ); |
| 185 | let mut tok: super::Token = super::next(&mut s); |
| 186 | try testing::expect(tok.kind == super::TokenKind::Ident); |
| 187 | try testing::expect(tok.source.len == 3); |
| 188 | |
| 189 | set tok = super::next(&mut s); |
| 190 | try testing::expect(tok.kind == super::TokenKind::Ident); |
| 191 | try testing::expect(tok.source.len == 6); |
| 192 | |
| 193 | set tok = super::next(&mut s); |
| 194 | try testing::expect(tok.kind == super::TokenKind::Ident); |
| 195 | try testing::expect(tok.source.len == 7); |
| 196 | } |
| 197 | |
| 198 | @test unsafe fn testScanNumbers() throws (testing::TestError) { |
| 199 | let mut s = testScanner( |
| 200 | "2 -2 +2 value-2 value+2 value--2 value+-2 value-+2 f(-2)" |
| 201 | ); |
| 202 | let expected: [super::TokenKind; 29] = [ |
| 203 | super::TokenKind::Number, |
| 204 | super::TokenKind::Minus, super::TokenKind::Number, |
| 205 | super::TokenKind::Plus, super::TokenKind::Number, |
| 206 | super::TokenKind::Ident, super::TokenKind::Minus, super::TokenKind::Number, |
| 207 | super::TokenKind::Ident, super::TokenKind::Plus, super::TokenKind::Number, |
| 208 | super::TokenKind::Ident, super::TokenKind::Minus, super::TokenKind::Minus, |
| 209 | super::TokenKind::Number, |
| 210 | super::TokenKind::Ident, super::TokenKind::Plus, super::TokenKind::Minus, |
| 211 | super::TokenKind::Number, |
| 212 | super::TokenKind::Ident, super::TokenKind::Minus, super::TokenKind::Plus, |
| 213 | super::TokenKind::Number, |
| 214 | super::TokenKind::Ident, super::TokenKind::LParen, super::TokenKind::Minus, |
| 215 | super::TokenKind::Number, super::TokenKind::RParen, |
| 216 | super::TokenKind::Eof, |
| 217 | ]; |
| 218 | for expectedKind in expected { |
| 219 | try testing::expect(super::next(&mut s).kind == expectedKind); |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | @test unsafe fn testScanKeywords() throws (testing::TestError) { |
| 224 | let mut s = testScanner("nil mod not static unsafe"); |
| 225 | let tok1: super::Token = super::next(&mut s); |
| 226 | |
| 227 | try testing::expect(tok1.kind == super::TokenKind::Nil); |
| 228 | try testing::expect(tok1.source.len == 3); |
| 229 | |
| 230 | let tok2: super::Token = super::next(&mut s); |
| 231 | try testing::expect(tok2.kind == super::TokenKind::Mod); |
| 232 | try testing::expect(tok2.source.len == 3); |
| 233 | |
| 234 | let tok3: super::Token = super::next(&mut s); |
| 235 | try testing::expect(tok3.kind == super::TokenKind::Not); |
| 236 | try testing::expect(tok3.source.len == 3); |
| 237 | |
| 238 | let tok4: super::Token = super::next(&mut s); |
| 239 | try testing::expect(tok4.kind == super::TokenKind::Static); |
| 240 | try testing::expect(tok4.source.len == 6); |
| 241 | |
| 242 | let tok5: super::Token = super::next(&mut s); |
| 243 | try testing::expect(tok5.kind == super::TokenKind::Unsafe); |
| 244 | try testing::expect(tok5.source.len == 6); |
| 245 | } |
| 246 | |
| 247 | @test unsafe fn testScanVoidAsIdent() throws (testing::TestError) { |
| 248 | let mut s = testScanner("void"); |
| 249 | let tok: super::Token = super::next(&mut s); |
| 250 | try testing::expect(tok.kind == super::TokenKind::Ident); |
| 251 | try testing::expect(tok.source.len == 4); |
| 252 | } |
| 253 | |
| 254 | @test unsafe fn testScanWhitespaceAndComments() throws (testing::TestError) { |
| 255 | let mut s = testScanner( |
| 256 | " \t\n // This is a comment..\n 42" |
| 257 | ); |
| 258 | let tok: super::Token = super::next(&mut s); |
| 259 | try testing::expect(tok.kind == super::TokenKind::Number); |
| 260 | try testing::expect(tok.source.len == 2); |
| 261 | try testing::expect(super::isEof(&s)); |
| 262 | } |
| 263 | |
| 264 | @test unsafe fn testScanInvalidCharacters() throws (testing::TestError) { |
| 265 | let mut s = testScanner( |
| 266 | "`#$" |
| 267 | ); |
| 268 | let mut tok: super::Token = super::next(&mut s); |
| 269 | try testing::expect(tok.kind == super::TokenKind::Invalid); |
| 270 | try testing::expect(tok.offset == 0); |
| 271 | |
| 272 | set tok = super::next(&mut s); |
| 273 | try testing::expect(tok.kind == super::TokenKind::Invalid); |
| 274 | try testing::expect(tok.offset == 1); |
| 275 | |
| 276 | set tok = super::next(&mut s); |
| 277 | try testing::expect(tok.kind == super::TokenKind::Invalid); |
| 278 | try testing::expect(tok.offset == 2); |
| 279 | } |
| 280 | |
| 281 | @test unsafe fn testScanUnterminatedString() throws (testing::TestError) { |
| 282 | let mut s = testScanner("\"Hello World!"); |
| 283 | let tok: super::Token = super::next(&mut s); |
| 284 | |
| 285 | try testing::expect(tok.kind == super::TokenKind::Invalid); |
| 286 | try testing::expect(tok.source == "unterminated string"); |
| 287 | try testing::expect(tok.offset == 0); |
| 288 | } |
| 289 | |
| 290 | @test unsafe fn testScanUnderminatedStringEscape() throws (testing::TestError) { |
| 291 | let mut s = testScanner("\"\\"); |
| 292 | let tok: super::Token = super::next(&mut s); |
| 293 | |
| 294 | try testing::expect(tok.kind == super::TokenKind::Invalid); |
| 295 | } |
| 296 | |
| 297 | @test unsafe fn testScanFunctionDefinition() throws (testing::TestError) { |
| 298 | let mut s = testScanner( |
| 299 | "fn add(a: i32, b: i32) -> i32 { return a + b; }" |
| 300 | ); |
| 301 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Fn); |
| 302 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Ident); |
| 303 | try testing::expect(super::next(&mut s).kind == super::TokenKind::LParen); |
| 304 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Ident); |
| 305 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Colon); |
| 306 | try testing::expect(super::next(&mut s).kind == super::TokenKind::I32); |
| 307 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Comma); |
| 308 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Ident); |
| 309 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Colon); |
| 310 | try testing::expect(super::next(&mut s).kind == super::TokenKind::I32); |
| 311 | try testing::expect(super::next(&mut s).kind == super::TokenKind::RParen); |
| 312 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Arrow); |
| 313 | try testing::expect(super::next(&mut s).kind == super::TokenKind::I32); |
| 314 | try testing::expect(super::next(&mut s).kind == super::TokenKind::LBrace); |
| 315 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Return); |
| 316 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Ident); |
| 317 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Plus); |
| 318 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Ident); |
| 319 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Semicolon); |
| 320 | try testing::expect(super::next(&mut s).kind == super::TokenKind::RBrace); |
| 321 | try testing::expect(super::next(&mut s).kind == super::TokenKind::Eof); |
| 322 | } |