/usr/share/pyshared/ometa/test/test_builder.py is in python-parsley 1.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 | from textwrap import dedent
import unittest
from ometa.builder import writePython
from terml.nodes import termMaker as t
from terml.parser import parseTerm as term
def dd(txt):
return dedent(txt).strip()
class PythonWriterTests(unittest.TestCase):
"""
Tests for generating Python source from an AST.
"""
def test_exactly(self):
"""
Test generation of code for the 'exactly' pattern.
"""
x = t.Exactly("x")
self.assertEqual(writePython(x ,""),
dd("""
_G_exactly_1, lastError = self.exactly('x')
self.considerError(lastError, None)
_G_exactly_1
"""))
def test_apply(self):
"""
Test generation of code for rule application.
"""
one = t.Action("1")
x = t.Action("x")
a = t.Apply("foo", "main", [one, x])
self.assertEqual(writePython(a, ""),
dd("""
_G_python_1, lastError = (1), None
self.considerError(lastError, None)
_G_python_2, lastError = eval('x', self.globals, _locals), None
self.considerError(lastError, None)
_G_apply_3, lastError = self._apply(self.rule_foo, "foo", [_G_python_1, _G_python_2])
self.considerError(lastError, None)
_G_apply_3
"""))
def test_foreignApply(self):
"""
Test generation of code for calling foreign grammar's rules.
"""
one = t.Action("1")
x = t.Action("x")
a = t.ForeignApply("thegrammar", "foo", "main", [one, x])
self.assertEqual(writePython(a, ""),
dd("""
_G_python_1, lastError = (1), None
self.considerError(lastError, None)
_G_python_2, lastError = eval('x', self.globals, _locals), None
self.considerError(lastError, None)
_G_apply_3, lastError = self.foreignApply("thegrammar", "foo", self.globals, _locals, _G_python_1, _G_python_2)
self.considerError(lastError, None)
_G_apply_3
"""))
def test_superApply(self):
"""
Test generation of code for calling the superclass' implementation of
the current rule.
"""
one = t.Action("1")
x = t.Action("x")
a = t.Apply("super", "main", [one, x])
self.assertEqual(writePython(a, ""),
dd("""
_G_python_1, lastError = (1), None
self.considerError(lastError, None)
_G_python_2, lastError = eval('x', self.globals, _locals), None
self.considerError(lastError, None)
_G_apply_3, lastError = self.superApply("main", _G_python_1, _G_python_2)
self.considerError(lastError, None)
_G_apply_3
"""))
def test_many(self):
"""
Test generation of code for matching zero or more instances of
a pattern.
"""
xs = t.Many(t.Exactly("x"))
self.assertEqual(writePython(xs, ""),
dd("""
def _G_many_1():
_G_exactly_2, lastError = self.exactly('x')
self.considerError(lastError, None)
return (_G_exactly_2, self.currentError)
_G_many_3, lastError = self.many(_G_many_1)
self.considerError(lastError, None)
_G_many_3
"""))
def test_many1(self):
"""
Test generation of code for matching one or more instances of
a pattern.
"""
xs = t.Many1(t.Exactly("x"))
self.assertEqual(writePython(xs, ""),
dd("""
def _G_many1_1():
_G_exactly_2, lastError = self.exactly('x')
self.considerError(lastError, None)
return (_G_exactly_2, self.currentError)
_G_many1_3, lastError = self.many(_G_many1_1, _G_many1_1())
self.considerError(lastError, None)
_G_many1_3
"""))
def test_or(self):
"""
Test code generation for a sequence of alternatives.
"""
xy = t.Or([t.Exactly("x"),
t.Exactly("y")])
self.assertEqual(writePython(xy, ""),
dd("""
def _G_or_1():
_G_exactly_2, lastError = self.exactly('x')
self.considerError(lastError, None)
return (_G_exactly_2, self.currentError)
def _G_or_3():
_G_exactly_4, lastError = self.exactly('y')
self.considerError(lastError, None)
return (_G_exactly_4, self.currentError)
_G_or_5, lastError = self._or([_G_or_1, _G_or_3])
self.considerError(lastError, None)
_G_or_5
"""))
def test_singleOr(self):
"""
Test code generation for a sequence of alternatives.
"""
x1 = t.Or([t.Exactly("x")])
x = t.Exactly("x")
self.assertEqual(writePython(x, ""), writePython(x1, ""))
def test_optional(self):
"""
Test code generation for optional terms.
"""
x = t.Optional(t.Exactly("x"))
self.assertEqual(writePython(x, ""),
dd("""
def _G_optional_1():
_G_exactly_2, lastError = self.exactly('x')
self.considerError(lastError, None)
return (_G_exactly_2, self.currentError)
def _G_optional_3():
return (None, self.input.nullError())
_G_or_4, lastError = self._or([_G_optional_1, _G_optional_3])
self.considerError(lastError, None)
_G_or_4
"""))
def test_not(self):
"""
Test code generation for negated terms.
"""
x = t.Not(t.Exactly("x"))
self.assertEqual(writePython(x ,""),
dd("""
def _G_not_1():
_G_exactly_2, lastError = self.exactly('x')
self.considerError(lastError, None)
return (_G_exactly_2, self.currentError)
_G_not_3, lastError = self._not(_G_not_1)
self.considerError(lastError, None)
_G_not_3
"""))
def test_lookahead(self):
"""
Test code generation for lookahead expressions.
"""
x = t.Lookahead(t.Exactly("x"))
self.assertEqual(writePython(x, ""),
dd("""
def _G_lookahead_1():
_G_exactly_2, lastError = self.exactly('x')
self.considerError(lastError, None)
return (_G_exactly_2, self.currentError)
_G_lookahead_3, lastError = self.lookahead(_G_lookahead_1)
self.considerError(lastError, None)
_G_lookahead_3
"""))
def test_sequence(self):
"""
Test generation of code for sequence patterns.
"""
x = t.Exactly("x")
y = t.Exactly("y")
z = t.And([x, y])
self.assertEqual(writePython(z, ""),
dd("""
_G_exactly_1, lastError = self.exactly('x')
self.considerError(lastError, None)
_G_exactly_2, lastError = self.exactly('y')
self.considerError(lastError, None)
_G_exactly_2
"""))
def test_bind(self):
"""
Test code generation for variable assignment.
"""
x = t.Exactly("x")
b = t.Bind("var", x)
self.assertEqual(writePython(b, ""),
dd("""
_G_exactly_1, lastError = self.exactly('x')
self.considerError(lastError, None)
_locals['var'] = _G_exactly_1
_G_exactly_1
"""))
def test_pred(self):
"""
Test code generation for predicate expressions.
"""
x = t.Predicate(t.Exactly("x"))
self.assertEqual(writePython(x, ""),
dd("""
def _G_pred_1():
_G_exactly_2, lastError = self.exactly('x')
self.considerError(lastError, None)
return (_G_exactly_2, self.currentError)
_G_pred_3, lastError = self.pred(_G_pred_1)
self.considerError(lastError, None)
_G_pred_3
"""))
def test_action(self):
"""
Test code generation for semantic actions.
"""
x = t.Action("doStuff()")
self.assertEqual(writePython(x, ""),
dd("""
_G_python_1, lastError = eval('doStuff()', self.globals, _locals), None
self.considerError(lastError, None)
_G_python_1
"""))
def test_expr(self):
"""
Test code generation for semantic predicates.
"""
x = t.Action("returnStuff()")
self.assertEqual(writePython(x, ""),
dd("""
_G_python_1, lastError = eval('returnStuff()', self.globals, _locals), None
self.considerError(lastError, None)
_G_python_1
"""))
def test_label(self):
"""
Test code generation for custom labels.
"""
xs = t.Label(t.Exactly("x"), 'CustomLabel')
self.assertEqual(writePython(xs, ""),
dd("""
def _G_label_1():
_G_exactly_2, lastError = self.exactly('x')
self.considerError(lastError, None)
return (_G_exactly_2, self.currentError)
_G_label_3, lastError = self.label(_G_label_1, "CustomLabel")
self.considerError(lastError, None)
_G_label_3
"""))
def test_listpattern(self):
"""
Test code generation for list patterns.
"""
x = t.List(t.Exactly("x"))
self.assertEqual(writePython(x, ""),
dd("""
def _G_listpattern_1():
_G_exactly_2, lastError = self.exactly('x')
self.considerError(lastError, None)
return (_G_exactly_2, self.currentError)
_G_listpattern_3, lastError = self.listpattern(_G_listpattern_1)
self.considerError(lastError, None)
_G_listpattern_3
"""))
def test_markAsTree(self):
"""
Grammars containing list patterns are marked as taking
tree-shaped input rather than character streams.
"""
x = t.Rule("foo", t.List(
t.Exactly("x")))
g = t.Grammar("TestGrammar", True, [x])
self.assertIn("\n tree = True\n", writePython(g, ""))
def test_rule(self):
"""
Test generation of entire rules.
"""
x = t.Rule("foo", t.Exactly("x"))
self.assertEqual(writePython(x, ""),
dd("""
def rule_foo(self):
_locals = {'self': self}
self.locals['foo'] = _locals
_G_exactly_1, lastError = self.exactly('x')
self.considerError(lastError, 'foo')
return (_G_exactly_1, self.currentError)
"""))
def test_grammar(self):
"""
Test generation of an entire grammar.
"""
r1 = t.Rule("foo", t.Exactly("x"))
r2 = t.Rule("baz", t.Exactly("y"))
x = t.Grammar("BuilderTest", False, [r1, r2])
self.assertEqual(
writePython(x, ""),
dd("""
def createParserClass(GrammarBase, ruleGlobals):
if ruleGlobals is None:
ruleGlobals = {}
class BuilderTest(GrammarBase):
def rule_foo(self):
_locals = {'self': self}
self.locals['foo'] = _locals
_G_exactly_1, lastError = self.exactly('x')
self.considerError(lastError, 'foo')
return (_G_exactly_1, self.currentError)
def rule_baz(self):
_locals = {'self': self}
self.locals['baz'] = _locals
_G_exactly_2, lastError = self.exactly('y')
self.considerError(lastError, 'baz')
return (_G_exactly_2, self.currentError)
if BuilderTest.globals is not None:
BuilderTest.globals = BuilderTest.globals.copy()
BuilderTest.globals.update(ruleGlobals)
else:
BuilderTest.globals = ruleGlobals
return BuilderTest
"""))
|