mirror of
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8f59ee01be
* Add tokenization of :=
- Add token to Include/token.h. Add token to documentation in Doc/library/token.rst.
- Run `./python Lib/token.py` to regenerate Lib/token.py.
- Update Parser/tokenizer.c: add case to handle `:=`.
* Add initial usage of := in grammar.
* Update Python.asdl to match the grammar updates. Regenerated Include/Python-ast.h and Python/Python-ast.c
* Update AST and compiler files in Python/ast.c and Python/compile.c. Basic functionality, this isn't scoped properly
* Regenerate Lib/symbol.py using `./python Lib/symbol.py`
* Tests - Fix failing tests in test_parser.py due to changes in token numbers for internal representation
* Tests - Add simple test for := token
* Tests - Add simple tests for named expressions using expr and suite
* Tests - Update number of levels for nested expressions to prevent stack overflow
* Update symbol table to handle NamedExpr
* Update Grammar to allow assignment expressions in if statements.
Regenerate Python/graminit.c accordingly using `make regen-grammar`
* Tests - Add additional tests for named expressions in RoundtripLegalSyntaxTestCase, based on examples and information directly from PEP 572
Note: failing tests are currently commented out (4 out of 24 tests currently fail)
* Tests - Add temporary syntax test failure tests in test_parser.py
Note: There is an outstanding TODO for this -- syntax tests need to be
moved to a different file (presumably test_syntax.py), but this is
covering what needs to be tested at the moment, and it's more convenient
to run a single test for the time being
* Add support for allowing assignment expressions as function argument annotations. Uncomment tests for these cases because they all pass now!
* Tests - Move existing syntax tests out of test_parser.py and into test_named_expressions.py. Refactor syntax tests to use unittest
* Add TargetScopeError exception to extend SyntaxError
Note: This simply creates the TargetScopeError exception, it is not yet
used anywhere
* Tests - Update tests per PEP 572
Continue refactoring test suite:
The named expression test suite now checks for any invalid cases that
throw exceptions (no longer limited to SyntaxErrors), assignment tests
to ensure that variables are properly assigned, and scope tests to
ensure that variable availability and values are correct
Note:
- There are still tests that are marked to skip, as they are not yet
implemented
- There are approximately 300 lines of the PEP that have not yet been
addressed, though these may be deferred
* Documentation - Small updates to XXX/todo comments
- Remove XXX from child description in ast.c
- Add comment with number of previously supported nested expressions for
3.7.X in test_parser.py
* Fix assert in seq_for_testlist()
* Cleanup - Denote "Not implemented -- No keyword args" on failing test case. Fix PEP8 error for blank lines at beginning of test classes in test_parser.py
* Tests - Wrap all file opens in `with...as` to ensure files are closed
* WIP: handle f(a := 1)
* Tests and Cleanup - No longer skips keyword arg test. Keyword arg test now uses a simpler test case and does not rely on an external file. Remove print statements from ast.c
* Tests - Refactor last remaining test case that relied on on external file to use a simpler test case without the dependency
* Tests - Add better description of remaning skipped tests. Add test checking scope when using assignment expression in a function argument
* Tests - Add test for nested comprehension, testing value and scope. Fix variable name in skipped comprehension scope test
* Handle restriction of LHS for named expressions - can only assign to LHS of type NAME. Specifically, restrict assignment to tuples
This adds an alternative set_context specifically for named expressions,
set_namedexpr_context. Thus, context is now set differently for standard
assignment versus assignment for named expressions in order to handle
restrictions.
* Tests - Update negative test case for assigning to lambda to match new error message. Add negative test case for assigning to tuple
* Tests - Reorder test cases to group invalid syntax cases and named assignment target errors
* Tests - Update test case for named expression in function argument - check that result and variable are set correctly
* Todo - Add todo for TargetScopeError based on Guido's comment (2b3acd37bd (r30472562))
* Tests - Add named expression tests for assignment operator in function arguments
Note: One of two tests are skipped, as function arguments are currently treating
an assignment expression inside of parenthesis as one child, which does
not properly catch the named expression, nor does it count arguments
properly
* Add NamedStore to expr_context. Regenerate related code with `make regen-ast`
* Add usage of NamedStore to ast_for_named_expr in ast.c. Update occurances of checking for Store to also handle NamedStore where appropriate
* Add ste_comprehension to _symtable_entry to track if the namespace is a comprehension. Initialize ste_comprehension to 0. Set set_comprehension to 1 in symtable_handle_comprehension
* s/symtable_add_def/symtable_add_def_helper. Add symtable_add_def to handle grabbing st->st_cur and passing it to symtable_add_def_helper. This now allows us to call the original code from symtable_add_def by instead calling symtable_add_def_helper with a different ste.
* Refactor symtable_record_directive to take lineno and col_offset as arguments instead of stmt_ty. This allows symtable_record_directive to be used for stmt_ty and expr_ty
* Handle elevating scope for named expressions in comprehensions.
* Handle error for usage of named expression inside a class block
* Tests - No longer skip scope tests. Add additional scope tests
* Cleanup - Update error message for named expression within a comprehension within a class. Update comments. Add assert for symtable_extend_namedexpr_scope to validate that we always find at least a ModuleScope if we don't find a Class or FunctionScope
* Cleanup - Add missing case for NamedStore in expr_context_name. Remove unused var in set_namedexpr_content
* Refactor - Consolidate set_context and set_namedexpr_context to reduce duplicated code. Special cases for named expressions are handled by checking if ctx is NamedStore
* Cleanup - Add additional use cases for ast_for_namedexpr in usage comment. Fix multiple blank lines in test_named_expressions
* Tests - Remove unnecessary test case. Renumber test case function names
* Remove TargetScopeError for now. Will add back if needed
* Cleanup - Small comment nit for consistency
* Handle positional argument check with named expression
* Add TargetScopeError exception definition. Add documentation for TargetScopeError in c-api docs. Throw TargetScopeError instead of SyntaxError when using a named expression in a comprehension within a class scope
* Increase stack size for parser by 200. This is a minimal change (approx. 5kb) and should not have an impact on any systems. Update parser test to allow 99 nested levels again
* Add TargetScopeError to exception_hierarchy.txt for test_baseexception.py_
* Tests - Major update for named expression tests, both in test_named_expressions and test_parser
- Add test for TargetScopeError
- Add tests for named expressions in comprehension scope and edge cases
- Add tests for named expressions in function arguments (declarations
and call sites)
- Reorganize tests to group them more logically
* Cleanup - Remove unnecessary comment
* Cleanup - Comment nitpicks
* Explicitly disallow assignment expressions to a name inside parentheses, e.g.: ((x) := 0)
- Add check for LHS types to detect a parenthesis then a name (see note)
- Add test for this scenario
- Update tests for changed error message for named assignment to a tuple
(also, see note)
Note: This caused issues with the previous error handling for named assignment
to a LHS that contained an expression, such as a tuple. Thus, the check
for the LHS of a named expression must be changed to be more specific if
we wish to maintain the previous error messages
* Cleanup - Wrap lines more strictly in test file
* Revert "Explicitly disallow assignment expressions to a name inside parentheses, e.g.: ((x) := 0)"
This reverts commit f1531400ca7d7a2d148830c8ac703f041740896d.
* Add NEWS.d entry
* Tests - Fix error in test_pickle.test_exceptions by adding TargetScopeError to list of exceptions
* Tests - Update error message tests to reflect improved messaging convention (s/can't/cannot)
* Remove cases that cannot be reached in compile.c. Small linting update.
* Update Grammar/Tokens to add COLONEQUAL. Regenerate all files
* Update TargetScopeError PRE_INIT and POST_INIT, as this was purposefully left out when fixing rebase conflicts
* Add NamedStore back and regenerate files
* Pass along line number and end col info for named expression
* Simplify News entry
* Fix compiler warning and explicity mark fallthrough
1648 lines
63 KiB
Python
1648 lines
63 KiB
Python
from test import support
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from tokenize import (tokenize, _tokenize, untokenize, NUMBER, NAME, OP,
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STRING, ENDMARKER, ENCODING, tok_name, detect_encoding,
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open as tokenize_open, Untokenizer, generate_tokens,
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NEWLINE)
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from io import BytesIO, StringIO
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import unittest
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from unittest import TestCase, mock
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from test.test_grammar import (VALID_UNDERSCORE_LITERALS,
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INVALID_UNDERSCORE_LITERALS)
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import os
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import token
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# Converts a source string into a list of textual representation
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# of the tokens such as:
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# ` NAME 'if' (1, 0) (1, 2)`
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# to make writing tests easier.
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def stringify_tokens_from_source(token_generator, source_string):
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result = []
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num_lines = len(source_string.splitlines())
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missing_trailing_nl = source_string[-1] not in '\r\n'
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for type, token, start, end, line in token_generator:
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if type == ENDMARKER:
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break
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# Ignore the new line on the last line if the input lacks one
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if missing_trailing_nl and type == NEWLINE and end[0] == num_lines:
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continue
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type = tok_name[type]
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result.append(f" {type:10} {token!r:13} {start} {end}")
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return result
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class TokenizeTest(TestCase):
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# Tests for the tokenize module.
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# The tests can be really simple. Given a small fragment of source
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# code, print out a table with tokens. The ENDMARKER, ENCODING and
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# final NEWLINE are omitted for brevity.
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def check_tokenize(self, s, expected):
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# Format the tokens in s in a table format.
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# The ENDMARKER and final NEWLINE are omitted.
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f = BytesIO(s.encode('utf-8'))
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result = stringify_tokens_from_source(tokenize(f.readline), s)
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self.assertEqual(result,
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[" ENCODING 'utf-8' (0, 0) (0, 0)"] +
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expected.rstrip().splitlines())
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def test_implicit_newline(self):
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# Make sure that the tokenizer puts in an implicit NEWLINE
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# when the input lacks a trailing new line.
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f = BytesIO("x".encode('utf-8'))
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tokens = list(tokenize(f.readline))
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self.assertEqual(tokens[-2].type, NEWLINE)
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self.assertEqual(tokens[-1].type, ENDMARKER)
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def test_basic(self):
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self.check_tokenize("1 + 1", """\
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NUMBER '1' (1, 0) (1, 1)
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OP '+' (1, 2) (1, 3)
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NUMBER '1' (1, 4) (1, 5)
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""")
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self.check_tokenize("if False:\n"
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" # NL\n"
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" \n"
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" True = False # NEWLINE\n", """\
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NAME 'if' (1, 0) (1, 2)
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NAME 'False' (1, 3) (1, 8)
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OP ':' (1, 8) (1, 9)
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NEWLINE '\\n' (1, 9) (1, 10)
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COMMENT '# NL' (2, 4) (2, 8)
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NL '\\n' (2, 8) (2, 9)
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NL '\\n' (3, 4) (3, 5)
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INDENT ' ' (4, 0) (4, 4)
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NAME 'True' (4, 4) (4, 8)
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OP '=' (4, 9) (4, 10)
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NAME 'False' (4, 11) (4, 16)
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COMMENT '# NEWLINE' (4, 17) (4, 26)
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NEWLINE '\\n' (4, 26) (4, 27)
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DEDENT '' (5, 0) (5, 0)
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""")
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indent_error_file = b"""\
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def k(x):
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x += 2
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x += 5
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"""
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readline = BytesIO(indent_error_file).readline
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with self.assertRaisesRegex(IndentationError,
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"unindent does not match any "
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"outer indentation level"):
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for tok in tokenize(readline):
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pass
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def test_int(self):
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# Ordinary integers and binary operators
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self.check_tokenize("0xff <= 255", """\
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NUMBER '0xff' (1, 0) (1, 4)
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OP '<=' (1, 5) (1, 7)
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NUMBER '255' (1, 8) (1, 11)
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""")
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self.check_tokenize("0b10 <= 255", """\
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NUMBER '0b10' (1, 0) (1, 4)
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OP '<=' (1, 5) (1, 7)
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NUMBER '255' (1, 8) (1, 11)
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""")
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self.check_tokenize("0o123 <= 0O123", """\
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NUMBER '0o123' (1, 0) (1, 5)
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OP '<=' (1, 6) (1, 8)
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NUMBER '0O123' (1, 9) (1, 14)
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""")
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self.check_tokenize("1234567 > ~0x15", """\
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NUMBER '1234567' (1, 0) (1, 7)
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OP '>' (1, 8) (1, 9)
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OP '~' (1, 10) (1, 11)
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NUMBER '0x15' (1, 11) (1, 15)
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""")
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self.check_tokenize("2134568 != 1231515", """\
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NUMBER '2134568' (1, 0) (1, 7)
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OP '!=' (1, 8) (1, 10)
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NUMBER '1231515' (1, 11) (1, 18)
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""")
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self.check_tokenize("(-124561-1) & 200000000", """\
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OP '(' (1, 0) (1, 1)
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OP '-' (1, 1) (1, 2)
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NUMBER '124561' (1, 2) (1, 8)
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OP '-' (1, 8) (1, 9)
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NUMBER '1' (1, 9) (1, 10)
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OP ')' (1, 10) (1, 11)
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OP '&' (1, 12) (1, 13)
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NUMBER '200000000' (1, 14) (1, 23)
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""")
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self.check_tokenize("0xdeadbeef != -1", """\
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NUMBER '0xdeadbeef' (1, 0) (1, 10)
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OP '!=' (1, 11) (1, 13)
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OP '-' (1, 14) (1, 15)
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NUMBER '1' (1, 15) (1, 16)
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""")
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self.check_tokenize("0xdeadc0de & 12345", """\
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NUMBER '0xdeadc0de' (1, 0) (1, 10)
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OP '&' (1, 11) (1, 12)
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NUMBER '12345' (1, 13) (1, 18)
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""")
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self.check_tokenize("0xFF & 0x15 | 1234", """\
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NUMBER '0xFF' (1, 0) (1, 4)
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OP '&' (1, 5) (1, 6)
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NUMBER '0x15' (1, 7) (1, 11)
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OP '|' (1, 12) (1, 13)
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NUMBER '1234' (1, 14) (1, 18)
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""")
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def test_long(self):
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# Long integers
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self.check_tokenize("x = 0", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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NUMBER '0' (1, 4) (1, 5)
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""")
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self.check_tokenize("x = 0xfffffffffff", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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NUMBER '0xfffffffffff' (1, 4) (1, 17)
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""")
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self.check_tokenize("x = 123141242151251616110", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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NUMBER '123141242151251616110' (1, 4) (1, 25)
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""")
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self.check_tokenize("x = -15921590215012591", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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OP '-' (1, 4) (1, 5)
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NUMBER '15921590215012591' (1, 5) (1, 22)
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""")
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def test_float(self):
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# Floating point numbers
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self.check_tokenize("x = 3.14159", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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NUMBER '3.14159' (1, 4) (1, 11)
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""")
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self.check_tokenize("x = 314159.", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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NUMBER '314159.' (1, 4) (1, 11)
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""")
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self.check_tokenize("x = .314159", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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NUMBER '.314159' (1, 4) (1, 11)
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""")
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self.check_tokenize("x = 3e14159", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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NUMBER '3e14159' (1, 4) (1, 11)
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""")
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self.check_tokenize("x = 3E123", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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NUMBER '3E123' (1, 4) (1, 9)
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""")
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self.check_tokenize("x+y = 3e-1230", """\
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NAME 'x' (1, 0) (1, 1)
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OP '+' (1, 1) (1, 2)
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NAME 'y' (1, 2) (1, 3)
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OP '=' (1, 4) (1, 5)
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NUMBER '3e-1230' (1, 6) (1, 13)
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""")
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self.check_tokenize("x = 3.14e159", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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NUMBER '3.14e159' (1, 4) (1, 12)
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""")
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def test_underscore_literals(self):
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def number_token(s):
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f = BytesIO(s.encode('utf-8'))
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for toktype, token, start, end, line in tokenize(f.readline):
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if toktype == NUMBER:
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return token
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return 'invalid token'
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for lit in VALID_UNDERSCORE_LITERALS:
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if '(' in lit:
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# this won't work with compound complex inputs
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continue
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self.assertEqual(number_token(lit), lit)
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for lit in INVALID_UNDERSCORE_LITERALS:
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self.assertNotEqual(number_token(lit), lit)
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def test_string(self):
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# String literals
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self.check_tokenize("x = ''; y = \"\"", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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STRING "''" (1, 4) (1, 6)
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OP ';' (1, 6) (1, 7)
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NAME 'y' (1, 8) (1, 9)
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OP '=' (1, 10) (1, 11)
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STRING '""' (1, 12) (1, 14)
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""")
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self.check_tokenize("x = '\"'; y = \"'\"", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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STRING '\\'"\\'' (1, 4) (1, 7)
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OP ';' (1, 7) (1, 8)
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NAME 'y' (1, 9) (1, 10)
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OP '=' (1, 11) (1, 12)
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STRING '"\\'"' (1, 13) (1, 16)
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""")
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self.check_tokenize("x = \"doesn't \"shrink\", does it\"", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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STRING '"doesn\\'t "' (1, 4) (1, 14)
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NAME 'shrink' (1, 14) (1, 20)
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STRING '", does it"' (1, 20) (1, 31)
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""")
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self.check_tokenize("x = 'abc' + 'ABC'", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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STRING "'abc'" (1, 4) (1, 9)
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OP '+' (1, 10) (1, 11)
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STRING "'ABC'" (1, 12) (1, 17)
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""")
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self.check_tokenize('y = "ABC" + "ABC"', """\
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NAME 'y' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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STRING '"ABC"' (1, 4) (1, 9)
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OP '+' (1, 10) (1, 11)
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STRING '"ABC"' (1, 12) (1, 17)
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""")
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self.check_tokenize("x = r'abc' + r'ABC' + R'ABC' + R'ABC'", """\
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NAME 'x' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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STRING "r'abc'" (1, 4) (1, 10)
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OP '+' (1, 11) (1, 12)
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STRING "r'ABC'" (1, 13) (1, 19)
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OP '+' (1, 20) (1, 21)
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STRING "R'ABC'" (1, 22) (1, 28)
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OP '+' (1, 29) (1, 30)
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STRING "R'ABC'" (1, 31) (1, 37)
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""")
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self.check_tokenize('y = r"abc" + r"ABC" + R"ABC" + R"ABC"', """\
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NAME 'y' (1, 0) (1, 1)
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OP '=' (1, 2) (1, 3)
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STRING 'r"abc"' (1, 4) (1, 10)
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OP '+' (1, 11) (1, 12)
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STRING 'r"ABC"' (1, 13) (1, 19)
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OP '+' (1, 20) (1, 21)
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STRING 'R"ABC"' (1, 22) (1, 28)
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OP '+' (1, 29) (1, 30)
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STRING 'R"ABC"' (1, 31) (1, 37)
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""")
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self.check_tokenize("u'abc' + U'abc'", """\
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STRING "u'abc'" (1, 0) (1, 6)
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OP '+' (1, 7) (1, 8)
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STRING "U'abc'" (1, 9) (1, 15)
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""")
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self.check_tokenize('u"abc" + U"abc"', """\
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STRING 'u"abc"' (1, 0) (1, 6)
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OP '+' (1, 7) (1, 8)
|
|
STRING 'U"abc"' (1, 9) (1, 15)
|
|
""")
|
|
|
|
self.check_tokenize("b'abc' + B'abc'", """\
|
|
STRING "b'abc'" (1, 0) (1, 6)
|
|
OP '+' (1, 7) (1, 8)
|
|
STRING "B'abc'" (1, 9) (1, 15)
|
|
""")
|
|
self.check_tokenize('b"abc" + B"abc"', """\
|
|
STRING 'b"abc"' (1, 0) (1, 6)
|
|
OP '+' (1, 7) (1, 8)
|
|
STRING 'B"abc"' (1, 9) (1, 15)
|
|
""")
|
|
self.check_tokenize("br'abc' + bR'abc' + Br'abc' + BR'abc'", """\
|
|
STRING "br'abc'" (1, 0) (1, 7)
|
|
OP '+' (1, 8) (1, 9)
|
|
STRING "bR'abc'" (1, 10) (1, 17)
|
|
OP '+' (1, 18) (1, 19)
|
|
STRING "Br'abc'" (1, 20) (1, 27)
|
|
OP '+' (1, 28) (1, 29)
|
|
STRING "BR'abc'" (1, 30) (1, 37)
|
|
""")
|
|
self.check_tokenize('br"abc" + bR"abc" + Br"abc" + BR"abc"', """\
|
|
STRING 'br"abc"' (1, 0) (1, 7)
|
|
OP '+' (1, 8) (1, 9)
|
|
STRING 'bR"abc"' (1, 10) (1, 17)
|
|
OP '+' (1, 18) (1, 19)
|
|
STRING 'Br"abc"' (1, 20) (1, 27)
|
|
OP '+' (1, 28) (1, 29)
|
|
STRING 'BR"abc"' (1, 30) (1, 37)
|
|
""")
|
|
self.check_tokenize("rb'abc' + rB'abc' + Rb'abc' + RB'abc'", """\
|
|
STRING "rb'abc'" (1, 0) (1, 7)
|
|
OP '+' (1, 8) (1, 9)
|
|
STRING "rB'abc'" (1, 10) (1, 17)
|
|
OP '+' (1, 18) (1, 19)
|
|
STRING "Rb'abc'" (1, 20) (1, 27)
|
|
OP '+' (1, 28) (1, 29)
|
|
STRING "RB'abc'" (1, 30) (1, 37)
|
|
""")
|
|
self.check_tokenize('rb"abc" + rB"abc" + Rb"abc" + RB"abc"', """\
|
|
STRING 'rb"abc"' (1, 0) (1, 7)
|
|
OP '+' (1, 8) (1, 9)
|
|
STRING 'rB"abc"' (1, 10) (1, 17)
|
|
OP '+' (1, 18) (1, 19)
|
|
STRING 'Rb"abc"' (1, 20) (1, 27)
|
|
OP '+' (1, 28) (1, 29)
|
|
STRING 'RB"abc"' (1, 30) (1, 37)
|
|
""")
|
|
# Check 0, 1, and 2 character string prefixes.
|
|
self.check_tokenize(r'"a\
|
|
de\
|
|
fg"', """\
|
|
STRING '"a\\\\\\nde\\\\\\nfg"\' (1, 0) (3, 3)
|
|
""")
|
|
self.check_tokenize(r'u"a\
|
|
de"', """\
|
|
STRING 'u"a\\\\\\nde"\' (1, 0) (2, 3)
|
|
""")
|
|
self.check_tokenize(r'rb"a\
|
|
d"', """\
|
|
STRING 'rb"a\\\\\\nd"\' (1, 0) (2, 2)
|
|
""")
|
|
self.check_tokenize(r'"""a\
|
|
b"""', """\
|
|
STRING '\"\""a\\\\\\nb\"\""' (1, 0) (2, 4)
|
|
""")
|
|
self.check_tokenize(r'u"""a\
|
|
b"""', """\
|
|
STRING 'u\"\""a\\\\\\nb\"\""' (1, 0) (2, 4)
|
|
""")
|
|
self.check_tokenize(r'rb"""a\
|
|
b\
|
|
c"""', """\
|
|
STRING 'rb"\""a\\\\\\nb\\\\\\nc"\""' (1, 0) (3, 4)
|
|
""")
|
|
self.check_tokenize('f"abc"', """\
|
|
STRING 'f"abc"' (1, 0) (1, 6)
|
|
""")
|
|
self.check_tokenize('fR"a{b}c"', """\
|
|
STRING 'fR"a{b}c"' (1, 0) (1, 9)
|
|
""")
|
|
self.check_tokenize('f"""abc"""', """\
|
|
STRING 'f\"\"\"abc\"\"\"' (1, 0) (1, 10)
|
|
""")
|
|
self.check_tokenize(r'f"abc\
|
|
def"', """\
|
|
STRING 'f"abc\\\\\\ndef"' (1, 0) (2, 4)
|
|
""")
|
|
self.check_tokenize(r'Rf"abc\
|
|
def"', """\
|
|
STRING 'Rf"abc\\\\\\ndef"' (1, 0) (2, 4)
|
|
""")
|
|
|
|
def test_function(self):
|
|
self.check_tokenize("def d22(a, b, c=2, d=2, *k): pass", """\
|
|
NAME 'def' (1, 0) (1, 3)
|
|
NAME 'd22' (1, 4) (1, 7)
|
|
OP '(' (1, 7) (1, 8)
|
|
NAME 'a' (1, 8) (1, 9)
|
|
OP ',' (1, 9) (1, 10)
|
|
NAME 'b' (1, 11) (1, 12)
|
|
OP ',' (1, 12) (1, 13)
|
|
NAME 'c' (1, 14) (1, 15)
|
|
OP '=' (1, 15) (1, 16)
|
|
NUMBER '2' (1, 16) (1, 17)
|
|
OP ',' (1, 17) (1, 18)
|
|
NAME 'd' (1, 19) (1, 20)
|
|
OP '=' (1, 20) (1, 21)
|
|
NUMBER '2' (1, 21) (1, 22)
|
|
OP ',' (1, 22) (1, 23)
|
|
OP '*' (1, 24) (1, 25)
|
|
NAME 'k' (1, 25) (1, 26)
|
|
OP ')' (1, 26) (1, 27)
|
|
OP ':' (1, 27) (1, 28)
|
|
NAME 'pass' (1, 29) (1, 33)
|
|
""")
|
|
self.check_tokenize("def d01v_(a=1, *k, **w): pass", """\
|
|
NAME 'def' (1, 0) (1, 3)
|
|
NAME 'd01v_' (1, 4) (1, 9)
|
|
OP '(' (1, 9) (1, 10)
|
|
NAME 'a' (1, 10) (1, 11)
|
|
OP '=' (1, 11) (1, 12)
|
|
NUMBER '1' (1, 12) (1, 13)
|
|
OP ',' (1, 13) (1, 14)
|
|
OP '*' (1, 15) (1, 16)
|
|
NAME 'k' (1, 16) (1, 17)
|
|
OP ',' (1, 17) (1, 18)
|
|
OP '**' (1, 19) (1, 21)
|
|
NAME 'w' (1, 21) (1, 22)
|
|
OP ')' (1, 22) (1, 23)
|
|
OP ':' (1, 23) (1, 24)
|
|
NAME 'pass' (1, 25) (1, 29)
|
|
""")
|
|
self.check_tokenize("def d23(a: str, b: int=3) -> int: pass", """\
|
|
NAME 'def' (1, 0) (1, 3)
|
|
NAME 'd23' (1, 4) (1, 7)
|
|
OP '(' (1, 7) (1, 8)
|
|
NAME 'a' (1, 8) (1, 9)
|
|
OP ':' (1, 9) (1, 10)
|
|
NAME 'str' (1, 11) (1, 14)
|
|
OP ',' (1, 14) (1, 15)
|
|
NAME 'b' (1, 16) (1, 17)
|
|
OP ':' (1, 17) (1, 18)
|
|
NAME 'int' (1, 19) (1, 22)
|
|
OP '=' (1, 22) (1, 23)
|
|
NUMBER '3' (1, 23) (1, 24)
|
|
OP ')' (1, 24) (1, 25)
|
|
OP '->' (1, 26) (1, 28)
|
|
NAME 'int' (1, 29) (1, 32)
|
|
OP ':' (1, 32) (1, 33)
|
|
NAME 'pass' (1, 34) (1, 38)
|
|
""")
|
|
|
|
def test_comparison(self):
|
|
# Comparison
|
|
self.check_tokenize("if 1 < 1 > 1 == 1 >= 5 <= 0x15 <= 0x12 != "
|
|
"1 and 5 in 1 not in 1 is 1 or 5 is not 1: pass", """\
|
|
NAME 'if' (1, 0) (1, 2)
|
|
NUMBER '1' (1, 3) (1, 4)
|
|
OP '<' (1, 5) (1, 6)
|
|
NUMBER '1' (1, 7) (1, 8)
|
|
OP '>' (1, 9) (1, 10)
|
|
NUMBER '1' (1, 11) (1, 12)
|
|
OP '==' (1, 13) (1, 15)
|
|
NUMBER '1' (1, 16) (1, 17)
|
|
OP '>=' (1, 18) (1, 20)
|
|
NUMBER '5' (1, 21) (1, 22)
|
|
OP '<=' (1, 23) (1, 25)
|
|
NUMBER '0x15' (1, 26) (1, 30)
|
|
OP '<=' (1, 31) (1, 33)
|
|
NUMBER '0x12' (1, 34) (1, 38)
|
|
OP '!=' (1, 39) (1, 41)
|
|
NUMBER '1' (1, 42) (1, 43)
|
|
NAME 'and' (1, 44) (1, 47)
|
|
NUMBER '5' (1, 48) (1, 49)
|
|
NAME 'in' (1, 50) (1, 52)
|
|
NUMBER '1' (1, 53) (1, 54)
|
|
NAME 'not' (1, 55) (1, 58)
|
|
NAME 'in' (1, 59) (1, 61)
|
|
NUMBER '1' (1, 62) (1, 63)
|
|
NAME 'is' (1, 64) (1, 66)
|
|
NUMBER '1' (1, 67) (1, 68)
|
|
NAME 'or' (1, 69) (1, 71)
|
|
NUMBER '5' (1, 72) (1, 73)
|
|
NAME 'is' (1, 74) (1, 76)
|
|
NAME 'not' (1, 77) (1, 80)
|
|
NUMBER '1' (1, 81) (1, 82)
|
|
OP ':' (1, 82) (1, 83)
|
|
NAME 'pass' (1, 84) (1, 88)
|
|
""")
|
|
|
|
def test_shift(self):
|
|
# Shift
|
|
self.check_tokenize("x = 1 << 1 >> 5", """\
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
NUMBER '1' (1, 4) (1, 5)
|
|
OP '<<' (1, 6) (1, 8)
|
|
NUMBER '1' (1, 9) (1, 10)
|
|
OP '>>' (1, 11) (1, 13)
|
|
NUMBER '5' (1, 14) (1, 15)
|
|
""")
|
|
|
|
def test_additive(self):
|
|
# Additive
|
|
self.check_tokenize("x = 1 - y + 15 - 1 + 0x124 + z + a[5]", """\
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
NUMBER '1' (1, 4) (1, 5)
|
|
OP '-' (1, 6) (1, 7)
|
|
NAME 'y' (1, 8) (1, 9)
|
|
OP '+' (1, 10) (1, 11)
|
|
NUMBER '15' (1, 12) (1, 14)
|
|
OP '-' (1, 15) (1, 16)
|
|
NUMBER '1' (1, 17) (1, 18)
|
|
OP '+' (1, 19) (1, 20)
|
|
NUMBER '0x124' (1, 21) (1, 26)
|
|
OP '+' (1, 27) (1, 28)
|
|
NAME 'z' (1, 29) (1, 30)
|
|
OP '+' (1, 31) (1, 32)
|
|
NAME 'a' (1, 33) (1, 34)
|
|
OP '[' (1, 34) (1, 35)
|
|
NUMBER '5' (1, 35) (1, 36)
|
|
OP ']' (1, 36) (1, 37)
|
|
""")
|
|
|
|
def test_multiplicative(self):
|
|
# Multiplicative
|
|
self.check_tokenize("x = 1//1*1/5*12%0x12@42", """\
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
NUMBER '1' (1, 4) (1, 5)
|
|
OP '//' (1, 5) (1, 7)
|
|
NUMBER '1' (1, 7) (1, 8)
|
|
OP '*' (1, 8) (1, 9)
|
|
NUMBER '1' (1, 9) (1, 10)
|
|
OP '/' (1, 10) (1, 11)
|
|
NUMBER '5' (1, 11) (1, 12)
|
|
OP '*' (1, 12) (1, 13)
|
|
NUMBER '12' (1, 13) (1, 15)
|
|
OP '%' (1, 15) (1, 16)
|
|
NUMBER '0x12' (1, 16) (1, 20)
|
|
OP '@' (1, 20) (1, 21)
|
|
NUMBER '42' (1, 21) (1, 23)
|
|
""")
|
|
|
|
def test_unary(self):
|
|
# Unary
|
|
self.check_tokenize("~1 ^ 1 & 1 |1 ^ -1", """\
|
|
OP '~' (1, 0) (1, 1)
|
|
NUMBER '1' (1, 1) (1, 2)
|
|
OP '^' (1, 3) (1, 4)
|
|
NUMBER '1' (1, 5) (1, 6)
|
|
OP '&' (1, 7) (1, 8)
|
|
NUMBER '1' (1, 9) (1, 10)
|
|
OP '|' (1, 11) (1, 12)
|
|
NUMBER '1' (1, 12) (1, 13)
|
|
OP '^' (1, 14) (1, 15)
|
|
OP '-' (1, 16) (1, 17)
|
|
NUMBER '1' (1, 17) (1, 18)
|
|
""")
|
|
self.check_tokenize("-1*1/1+1*1//1 - ---1**1", """\
|
|
OP '-' (1, 0) (1, 1)
|
|
NUMBER '1' (1, 1) (1, 2)
|
|
OP '*' (1, 2) (1, 3)
|
|
NUMBER '1' (1, 3) (1, 4)
|
|
OP '/' (1, 4) (1, 5)
|
|
NUMBER '1' (1, 5) (1, 6)
|
|
OP '+' (1, 6) (1, 7)
|
|
NUMBER '1' (1, 7) (1, 8)
|
|
OP '*' (1, 8) (1, 9)
|
|
NUMBER '1' (1, 9) (1, 10)
|
|
OP '//' (1, 10) (1, 12)
|
|
NUMBER '1' (1, 12) (1, 13)
|
|
OP '-' (1, 14) (1, 15)
|
|
OP '-' (1, 16) (1, 17)
|
|
OP '-' (1, 17) (1, 18)
|
|
OP '-' (1, 18) (1, 19)
|
|
NUMBER '1' (1, 19) (1, 20)
|
|
OP '**' (1, 20) (1, 22)
|
|
NUMBER '1' (1, 22) (1, 23)
|
|
""")
|
|
|
|
def test_selector(self):
|
|
# Selector
|
|
self.check_tokenize("import sys, time\nx = sys.modules['time'].time()", """\
|
|
NAME 'import' (1, 0) (1, 6)
|
|
NAME 'sys' (1, 7) (1, 10)
|
|
OP ',' (1, 10) (1, 11)
|
|
NAME 'time' (1, 12) (1, 16)
|
|
NEWLINE '\\n' (1, 16) (1, 17)
|
|
NAME 'x' (2, 0) (2, 1)
|
|
OP '=' (2, 2) (2, 3)
|
|
NAME 'sys' (2, 4) (2, 7)
|
|
OP '.' (2, 7) (2, 8)
|
|
NAME 'modules' (2, 8) (2, 15)
|
|
OP '[' (2, 15) (2, 16)
|
|
STRING "'time'" (2, 16) (2, 22)
|
|
OP ']' (2, 22) (2, 23)
|
|
OP '.' (2, 23) (2, 24)
|
|
NAME 'time' (2, 24) (2, 28)
|
|
OP '(' (2, 28) (2, 29)
|
|
OP ')' (2, 29) (2, 30)
|
|
""")
|
|
|
|
def test_method(self):
|
|
# Methods
|
|
self.check_tokenize("@staticmethod\ndef foo(x,y): pass", """\
|
|
OP '@' (1, 0) (1, 1)
|
|
NAME 'staticmethod' (1, 1) (1, 13)
|
|
NEWLINE '\\n' (1, 13) (1, 14)
|
|
NAME 'def' (2, 0) (2, 3)
|
|
NAME 'foo' (2, 4) (2, 7)
|
|
OP '(' (2, 7) (2, 8)
|
|
NAME 'x' (2, 8) (2, 9)
|
|
OP ',' (2, 9) (2, 10)
|
|
NAME 'y' (2, 10) (2, 11)
|
|
OP ')' (2, 11) (2, 12)
|
|
OP ':' (2, 12) (2, 13)
|
|
NAME 'pass' (2, 14) (2, 18)
|
|
""")
|
|
|
|
def test_tabs(self):
|
|
# Evil tabs
|
|
self.check_tokenize("def f():\n"
|
|
"\tif x\n"
|
|
" \tpass", """\
|
|
NAME 'def' (1, 0) (1, 3)
|
|
NAME 'f' (1, 4) (1, 5)
|
|
OP '(' (1, 5) (1, 6)
|
|
OP ')' (1, 6) (1, 7)
|
|
OP ':' (1, 7) (1, 8)
|
|
NEWLINE '\\n' (1, 8) (1, 9)
|
|
INDENT '\\t' (2, 0) (2, 1)
|
|
NAME 'if' (2, 1) (2, 3)
|
|
NAME 'x' (2, 4) (2, 5)
|
|
NEWLINE '\\n' (2, 5) (2, 6)
|
|
INDENT ' \\t' (3, 0) (3, 9)
|
|
NAME 'pass' (3, 9) (3, 13)
|
|
DEDENT '' (4, 0) (4, 0)
|
|
DEDENT '' (4, 0) (4, 0)
|
|
""")
|
|
|
|
def test_non_ascii_identifiers(self):
|
|
# Non-ascii identifiers
|
|
self.check_tokenize("Örter = 'places'\ngrün = 'green'", """\
|
|
NAME 'Örter' (1, 0) (1, 5)
|
|
OP '=' (1, 6) (1, 7)
|
|
STRING "'places'" (1, 8) (1, 16)
|
|
NEWLINE '\\n' (1, 16) (1, 17)
|
|
NAME 'grün' (2, 0) (2, 4)
|
|
OP '=' (2, 5) (2, 6)
|
|
STRING "'green'" (2, 7) (2, 14)
|
|
""")
|
|
|
|
def test_unicode(self):
|
|
# Legacy unicode literals:
|
|
self.check_tokenize("Örter = u'places'\ngrün = U'green'", """\
|
|
NAME 'Örter' (1, 0) (1, 5)
|
|
OP '=' (1, 6) (1, 7)
|
|
STRING "u'places'" (1, 8) (1, 17)
|
|
NEWLINE '\\n' (1, 17) (1, 18)
|
|
NAME 'grün' (2, 0) (2, 4)
|
|
OP '=' (2, 5) (2, 6)
|
|
STRING "U'green'" (2, 7) (2, 15)
|
|
""")
|
|
|
|
def test_async(self):
|
|
# Async/await extension:
|
|
self.check_tokenize("async = 1", """\
|
|
NAME 'async' (1, 0) (1, 5)
|
|
OP '=' (1, 6) (1, 7)
|
|
NUMBER '1' (1, 8) (1, 9)
|
|
""")
|
|
|
|
self.check_tokenize("a = (async = 1)", """\
|
|
NAME 'a' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
OP '(' (1, 4) (1, 5)
|
|
NAME 'async' (1, 5) (1, 10)
|
|
OP '=' (1, 11) (1, 12)
|
|
NUMBER '1' (1, 13) (1, 14)
|
|
OP ')' (1, 14) (1, 15)
|
|
""")
|
|
|
|
self.check_tokenize("async()", """\
|
|
NAME 'async' (1, 0) (1, 5)
|
|
OP '(' (1, 5) (1, 6)
|
|
OP ')' (1, 6) (1, 7)
|
|
""")
|
|
|
|
self.check_tokenize("class async(Bar):pass", """\
|
|
NAME 'class' (1, 0) (1, 5)
|
|
NAME 'async' (1, 6) (1, 11)
|
|
OP '(' (1, 11) (1, 12)
|
|
NAME 'Bar' (1, 12) (1, 15)
|
|
OP ')' (1, 15) (1, 16)
|
|
OP ':' (1, 16) (1, 17)
|
|
NAME 'pass' (1, 17) (1, 21)
|
|
""")
|
|
|
|
self.check_tokenize("class async:pass", """\
|
|
NAME 'class' (1, 0) (1, 5)
|
|
NAME 'async' (1, 6) (1, 11)
|
|
OP ':' (1, 11) (1, 12)
|
|
NAME 'pass' (1, 12) (1, 16)
|
|
""")
|
|
|
|
self.check_tokenize("await = 1", """\
|
|
NAME 'await' (1, 0) (1, 5)
|
|
OP '=' (1, 6) (1, 7)
|
|
NUMBER '1' (1, 8) (1, 9)
|
|
""")
|
|
|
|
self.check_tokenize("foo.async", """\
|
|
NAME 'foo' (1, 0) (1, 3)
|
|
OP '.' (1, 3) (1, 4)
|
|
NAME 'async' (1, 4) (1, 9)
|
|
""")
|
|
|
|
self.check_tokenize("async for a in b: pass", """\
|
|
NAME 'async' (1, 0) (1, 5)
|
|
NAME 'for' (1, 6) (1, 9)
|
|
NAME 'a' (1, 10) (1, 11)
|
|
NAME 'in' (1, 12) (1, 14)
|
|
NAME 'b' (1, 15) (1, 16)
|
|
OP ':' (1, 16) (1, 17)
|
|
NAME 'pass' (1, 18) (1, 22)
|
|
""")
|
|
|
|
self.check_tokenize("async with a as b: pass", """\
|
|
NAME 'async' (1, 0) (1, 5)
|
|
NAME 'with' (1, 6) (1, 10)
|
|
NAME 'a' (1, 11) (1, 12)
|
|
NAME 'as' (1, 13) (1, 15)
|
|
NAME 'b' (1, 16) (1, 17)
|
|
OP ':' (1, 17) (1, 18)
|
|
NAME 'pass' (1, 19) (1, 23)
|
|
""")
|
|
|
|
self.check_tokenize("async.foo", """\
|
|
NAME 'async' (1, 0) (1, 5)
|
|
OP '.' (1, 5) (1, 6)
|
|
NAME 'foo' (1, 6) (1, 9)
|
|
""")
|
|
|
|
self.check_tokenize("async", """\
|
|
NAME 'async' (1, 0) (1, 5)
|
|
""")
|
|
|
|
self.check_tokenize("async\n#comment\nawait", """\
|
|
NAME 'async' (1, 0) (1, 5)
|
|
NEWLINE '\\n' (1, 5) (1, 6)
|
|
COMMENT '#comment' (2, 0) (2, 8)
|
|
NL '\\n' (2, 8) (2, 9)
|
|
NAME 'await' (3, 0) (3, 5)
|
|
""")
|
|
|
|
self.check_tokenize("async\n...\nawait", """\
|
|
NAME 'async' (1, 0) (1, 5)
|
|
NEWLINE '\\n' (1, 5) (1, 6)
|
|
OP '...' (2, 0) (2, 3)
|
|
NEWLINE '\\n' (2, 3) (2, 4)
|
|
NAME 'await' (3, 0) (3, 5)
|
|
""")
|
|
|
|
self.check_tokenize("async\nawait", """\
|
|
NAME 'async' (1, 0) (1, 5)
|
|
NEWLINE '\\n' (1, 5) (1, 6)
|
|
NAME 'await' (2, 0) (2, 5)
|
|
""")
|
|
|
|
self.check_tokenize("foo.async + 1", """\
|
|
NAME 'foo' (1, 0) (1, 3)
|
|
OP '.' (1, 3) (1, 4)
|
|
NAME 'async' (1, 4) (1, 9)
|
|
OP '+' (1, 10) (1, 11)
|
|
NUMBER '1' (1, 12) (1, 13)
|
|
""")
|
|
|
|
self.check_tokenize("async def foo(): pass", """\
|
|
NAME 'async' (1, 0) (1, 5)
|
|
NAME 'def' (1, 6) (1, 9)
|
|
NAME 'foo' (1, 10) (1, 13)
|
|
OP '(' (1, 13) (1, 14)
|
|
OP ')' (1, 14) (1, 15)
|
|
OP ':' (1, 15) (1, 16)
|
|
NAME 'pass' (1, 17) (1, 21)
|
|
""")
|
|
|
|
self.check_tokenize('''\
|
|
async def foo():
|
|
def foo(await):
|
|
await = 1
|
|
if 1:
|
|
await
|
|
async += 1
|
|
''', """\
|
|
NAME 'async' (1, 0) (1, 5)
|
|
NAME 'def' (1, 6) (1, 9)
|
|
NAME 'foo' (1, 10) (1, 13)
|
|
OP '(' (1, 13) (1, 14)
|
|
OP ')' (1, 14) (1, 15)
|
|
OP ':' (1, 15) (1, 16)
|
|
NEWLINE '\\n' (1, 16) (1, 17)
|
|
INDENT ' ' (2, 0) (2, 2)
|
|
NAME 'def' (2, 2) (2, 5)
|
|
NAME 'foo' (2, 6) (2, 9)
|
|
OP '(' (2, 9) (2, 10)
|
|
NAME 'await' (2, 10) (2, 15)
|
|
OP ')' (2, 15) (2, 16)
|
|
OP ':' (2, 16) (2, 17)
|
|
NEWLINE '\\n' (2, 17) (2, 18)
|
|
INDENT ' ' (3, 0) (3, 4)
|
|
NAME 'await' (3, 4) (3, 9)
|
|
OP '=' (3, 10) (3, 11)
|
|
NUMBER '1' (3, 12) (3, 13)
|
|
NEWLINE '\\n' (3, 13) (3, 14)
|
|
DEDENT '' (4, 2) (4, 2)
|
|
NAME 'if' (4, 2) (4, 4)
|
|
NUMBER '1' (4, 5) (4, 6)
|
|
OP ':' (4, 6) (4, 7)
|
|
NEWLINE '\\n' (4, 7) (4, 8)
|
|
INDENT ' ' (5, 0) (5, 4)
|
|
NAME 'await' (5, 4) (5, 9)
|
|
NEWLINE '\\n' (5, 9) (5, 10)
|
|
DEDENT '' (6, 0) (6, 0)
|
|
DEDENT '' (6, 0) (6, 0)
|
|
NAME 'async' (6, 0) (6, 5)
|
|
OP '+=' (6, 6) (6, 8)
|
|
NUMBER '1' (6, 9) (6, 10)
|
|
NEWLINE '\\n' (6, 10) (6, 11)
|
|
""")
|
|
|
|
self.check_tokenize('''\
|
|
async def foo():
|
|
async for i in 1: pass''', """\
|
|
NAME 'async' (1, 0) (1, 5)
|
|
NAME 'def' (1, 6) (1, 9)
|
|
NAME 'foo' (1, 10) (1, 13)
|
|
OP '(' (1, 13) (1, 14)
|
|
OP ')' (1, 14) (1, 15)
|
|
OP ':' (1, 15) (1, 16)
|
|
NEWLINE '\\n' (1, 16) (1, 17)
|
|
INDENT ' ' (2, 0) (2, 2)
|
|
NAME 'async' (2, 2) (2, 7)
|
|
NAME 'for' (2, 8) (2, 11)
|
|
NAME 'i' (2, 12) (2, 13)
|
|
NAME 'in' (2, 14) (2, 16)
|
|
NUMBER '1' (2, 17) (2, 18)
|
|
OP ':' (2, 18) (2, 19)
|
|
NAME 'pass' (2, 20) (2, 24)
|
|
DEDENT '' (3, 0) (3, 0)
|
|
""")
|
|
|
|
self.check_tokenize('''async def foo(async): await''', """\
|
|
NAME 'async' (1, 0) (1, 5)
|
|
NAME 'def' (1, 6) (1, 9)
|
|
NAME 'foo' (1, 10) (1, 13)
|
|
OP '(' (1, 13) (1, 14)
|
|
NAME 'async' (1, 14) (1, 19)
|
|
OP ')' (1, 19) (1, 20)
|
|
OP ':' (1, 20) (1, 21)
|
|
NAME 'await' (1, 22) (1, 27)
|
|
""")
|
|
|
|
self.check_tokenize('''\
|
|
def f():
|
|
|
|
def baz(): pass
|
|
async def bar(): pass
|
|
|
|
await = 2''', """\
|
|
NAME 'def' (1, 0) (1, 3)
|
|
NAME 'f' (1, 4) (1, 5)
|
|
OP '(' (1, 5) (1, 6)
|
|
OP ')' (1, 6) (1, 7)
|
|
OP ':' (1, 7) (1, 8)
|
|
NEWLINE '\\n' (1, 8) (1, 9)
|
|
NL '\\n' (2, 0) (2, 1)
|
|
INDENT ' ' (3, 0) (3, 2)
|
|
NAME 'def' (3, 2) (3, 5)
|
|
NAME 'baz' (3, 6) (3, 9)
|
|
OP '(' (3, 9) (3, 10)
|
|
OP ')' (3, 10) (3, 11)
|
|
OP ':' (3, 11) (3, 12)
|
|
NAME 'pass' (3, 13) (3, 17)
|
|
NEWLINE '\\n' (3, 17) (3, 18)
|
|
NAME 'async' (4, 2) (4, 7)
|
|
NAME 'def' (4, 8) (4, 11)
|
|
NAME 'bar' (4, 12) (4, 15)
|
|
OP '(' (4, 15) (4, 16)
|
|
OP ')' (4, 16) (4, 17)
|
|
OP ':' (4, 17) (4, 18)
|
|
NAME 'pass' (4, 19) (4, 23)
|
|
NEWLINE '\\n' (4, 23) (4, 24)
|
|
NL '\\n' (5, 0) (5, 1)
|
|
NAME 'await' (6, 2) (6, 7)
|
|
OP '=' (6, 8) (6, 9)
|
|
NUMBER '2' (6, 10) (6, 11)
|
|
DEDENT '' (7, 0) (7, 0)
|
|
""")
|
|
|
|
self.check_tokenize('''\
|
|
async def f():
|
|
|
|
def baz(): pass
|
|
async def bar(): pass
|
|
|
|
await = 2''', """\
|
|
NAME 'async' (1, 0) (1, 5)
|
|
NAME 'def' (1, 6) (1, 9)
|
|
NAME 'f' (1, 10) (1, 11)
|
|
OP '(' (1, 11) (1, 12)
|
|
OP ')' (1, 12) (1, 13)
|
|
OP ':' (1, 13) (1, 14)
|
|
NEWLINE '\\n' (1, 14) (1, 15)
|
|
NL '\\n' (2, 0) (2, 1)
|
|
INDENT ' ' (3, 0) (3, 2)
|
|
NAME 'def' (3, 2) (3, 5)
|
|
NAME 'baz' (3, 6) (3, 9)
|
|
OP '(' (3, 9) (3, 10)
|
|
OP ')' (3, 10) (3, 11)
|
|
OP ':' (3, 11) (3, 12)
|
|
NAME 'pass' (3, 13) (3, 17)
|
|
NEWLINE '\\n' (3, 17) (3, 18)
|
|
NAME 'async' (4, 2) (4, 7)
|
|
NAME 'def' (4, 8) (4, 11)
|
|
NAME 'bar' (4, 12) (4, 15)
|
|
OP '(' (4, 15) (4, 16)
|
|
OP ')' (4, 16) (4, 17)
|
|
OP ':' (4, 17) (4, 18)
|
|
NAME 'pass' (4, 19) (4, 23)
|
|
NEWLINE '\\n' (4, 23) (4, 24)
|
|
NL '\\n' (5, 0) (5, 1)
|
|
NAME 'await' (6, 2) (6, 7)
|
|
OP '=' (6, 8) (6, 9)
|
|
NUMBER '2' (6, 10) (6, 11)
|
|
DEDENT '' (7, 0) (7, 0)
|
|
""")
|
|
|
|
class GenerateTokensTest(TokenizeTest):
|
|
def check_tokenize(self, s, expected):
|
|
# Format the tokens in s in a table format.
|
|
# The ENDMARKER and final NEWLINE are omitted.
|
|
f = StringIO(s)
|
|
result = stringify_tokens_from_source(generate_tokens(f.readline), s)
|
|
self.assertEqual(result, expected.rstrip().splitlines())
|
|
|
|
|
|
def decistmt(s):
|
|
result = []
|
|
g = tokenize(BytesIO(s.encode('utf-8')).readline) # tokenize the string
|
|
for toknum, tokval, _, _, _ in g:
|
|
if toknum == NUMBER and '.' in tokval: # replace NUMBER tokens
|
|
result.extend([
|
|
(NAME, 'Decimal'),
|
|
(OP, '('),
|
|
(STRING, repr(tokval)),
|
|
(OP, ')')
|
|
])
|
|
else:
|
|
result.append((toknum, tokval))
|
|
return untokenize(result).decode('utf-8')
|
|
|
|
class TestMisc(TestCase):
|
|
|
|
def test_decistmt(self):
|
|
# Substitute Decimals for floats in a string of statements.
|
|
# This is an example from the docs.
|
|
|
|
from decimal import Decimal
|
|
s = '+21.3e-5*-.1234/81.7'
|
|
self.assertEqual(decistmt(s),
|
|
"+Decimal ('21.3e-5')*-Decimal ('.1234')/Decimal ('81.7')")
|
|
|
|
# The format of the exponent is inherited from the platform C library.
|
|
# Known cases are "e-007" (Windows) and "e-07" (not Windows). Since
|
|
# we're only showing 11 digits, and the 12th isn't close to 5, the
|
|
# rest of the output should be platform-independent.
|
|
self.assertRegex(repr(eval(s)), '-3.2171603427[0-9]*e-0+7')
|
|
|
|
# Output from calculations with Decimal should be identical across all
|
|
# platforms.
|
|
self.assertEqual(eval(decistmt(s)),
|
|
Decimal('-3.217160342717258261933904529E-7'))
|
|
|
|
|
|
class TestTokenizerAdheresToPep0263(TestCase):
|
|
"""
|
|
Test that tokenizer adheres to the coding behaviour stipulated in PEP 0263.
|
|
"""
|
|
|
|
def _testFile(self, filename):
|
|
path = os.path.join(os.path.dirname(__file__), filename)
|
|
TestRoundtrip.check_roundtrip(self, open(path, 'rb'))
|
|
|
|
def test_utf8_coding_cookie_and_no_utf8_bom(self):
|
|
f = 'tokenize_tests-utf8-coding-cookie-and-no-utf8-bom-sig.txt'
|
|
self._testFile(f)
|
|
|
|
def test_latin1_coding_cookie_and_utf8_bom(self):
|
|
"""
|
|
As per PEP 0263, if a file starts with a utf-8 BOM signature, the only
|
|
allowed encoding for the comment is 'utf-8'. The text file used in
|
|
this test starts with a BOM signature, but specifies latin1 as the
|
|
coding, so verify that a SyntaxError is raised, which matches the
|
|
behaviour of the interpreter when it encounters a similar condition.
|
|
"""
|
|
f = 'tokenize_tests-latin1-coding-cookie-and-utf8-bom-sig.txt'
|
|
self.assertRaises(SyntaxError, self._testFile, f)
|
|
|
|
def test_no_coding_cookie_and_utf8_bom(self):
|
|
f = 'tokenize_tests-no-coding-cookie-and-utf8-bom-sig-only.txt'
|
|
self._testFile(f)
|
|
|
|
def test_utf8_coding_cookie_and_utf8_bom(self):
|
|
f = 'tokenize_tests-utf8-coding-cookie-and-utf8-bom-sig.txt'
|
|
self._testFile(f)
|
|
|
|
def test_bad_coding_cookie(self):
|
|
self.assertRaises(SyntaxError, self._testFile, 'bad_coding.py')
|
|
self.assertRaises(SyntaxError, self._testFile, 'bad_coding2.py')
|
|
|
|
|
|
class Test_Tokenize(TestCase):
|
|
|
|
def test__tokenize_decodes_with_specified_encoding(self):
|
|
literal = '"ЉЊЈЁЂ"'
|
|
line = literal.encode('utf-8')
|
|
first = False
|
|
def readline():
|
|
nonlocal first
|
|
if not first:
|
|
first = True
|
|
return line
|
|
else:
|
|
return b''
|
|
|
|
# skip the initial encoding token and the end tokens
|
|
tokens = list(_tokenize(readline, encoding='utf-8'))[1:-2]
|
|
expected_tokens = [(3, '"ЉЊЈЁЂ"', (1, 0), (1, 7), '"ЉЊЈЁЂ"')]
|
|
self.assertEqual(tokens, expected_tokens,
|
|
"bytes not decoded with encoding")
|
|
|
|
def test__tokenize_does_not_decode_with_encoding_none(self):
|
|
literal = '"ЉЊЈЁЂ"'
|
|
first = False
|
|
def readline():
|
|
nonlocal first
|
|
if not first:
|
|
first = True
|
|
return literal
|
|
else:
|
|
return b''
|
|
|
|
# skip the end tokens
|
|
tokens = list(_tokenize(readline, encoding=None))[:-2]
|
|
expected_tokens = [(3, '"ЉЊЈЁЂ"', (1, 0), (1, 7), '"ЉЊЈЁЂ"')]
|
|
self.assertEqual(tokens, expected_tokens,
|
|
"string not tokenized when encoding is None")
|
|
|
|
|
|
class TestDetectEncoding(TestCase):
|
|
|
|
def get_readline(self, lines):
|
|
index = 0
|
|
def readline():
|
|
nonlocal index
|
|
if index == len(lines):
|
|
raise StopIteration
|
|
line = lines[index]
|
|
index += 1
|
|
return line
|
|
return readline
|
|
|
|
def test_no_bom_no_encoding_cookie(self):
|
|
lines = (
|
|
b'# something\n',
|
|
b'print(something)\n',
|
|
b'do_something(else)\n'
|
|
)
|
|
encoding, consumed_lines = detect_encoding(self.get_readline(lines))
|
|
self.assertEqual(encoding, 'utf-8')
|
|
self.assertEqual(consumed_lines, list(lines[:2]))
|
|
|
|
def test_bom_no_cookie(self):
|
|
lines = (
|
|
b'\xef\xbb\xbf# something\n',
|
|
b'print(something)\n',
|
|
b'do_something(else)\n'
|
|
)
|
|
encoding, consumed_lines = detect_encoding(self.get_readline(lines))
|
|
self.assertEqual(encoding, 'utf-8-sig')
|
|
self.assertEqual(consumed_lines,
|
|
[b'# something\n', b'print(something)\n'])
|
|
|
|
def test_cookie_first_line_no_bom(self):
|
|
lines = (
|
|
b'# -*- coding: latin-1 -*-\n',
|
|
b'print(something)\n',
|
|
b'do_something(else)\n'
|
|
)
|
|
encoding, consumed_lines = detect_encoding(self.get_readline(lines))
|
|
self.assertEqual(encoding, 'iso-8859-1')
|
|
self.assertEqual(consumed_lines, [b'# -*- coding: latin-1 -*-\n'])
|
|
|
|
def test_matched_bom_and_cookie_first_line(self):
|
|
lines = (
|
|
b'\xef\xbb\xbf# coding=utf-8\n',
|
|
b'print(something)\n',
|
|
b'do_something(else)\n'
|
|
)
|
|
encoding, consumed_lines = detect_encoding(self.get_readline(lines))
|
|
self.assertEqual(encoding, 'utf-8-sig')
|
|
self.assertEqual(consumed_lines, [b'# coding=utf-8\n'])
|
|
|
|
def test_mismatched_bom_and_cookie_first_line_raises_syntaxerror(self):
|
|
lines = (
|
|
b'\xef\xbb\xbf# vim: set fileencoding=ascii :\n',
|
|
b'print(something)\n',
|
|
b'do_something(else)\n'
|
|
)
|
|
readline = self.get_readline(lines)
|
|
self.assertRaises(SyntaxError, detect_encoding, readline)
|
|
|
|
def test_cookie_second_line_no_bom(self):
|
|
lines = (
|
|
b'#! something\n',
|
|
b'# vim: set fileencoding=ascii :\n',
|
|
b'print(something)\n',
|
|
b'do_something(else)\n'
|
|
)
|
|
encoding, consumed_lines = detect_encoding(self.get_readline(lines))
|
|
self.assertEqual(encoding, 'ascii')
|
|
expected = [b'#! something\n', b'# vim: set fileencoding=ascii :\n']
|
|
self.assertEqual(consumed_lines, expected)
|
|
|
|
def test_matched_bom_and_cookie_second_line(self):
|
|
lines = (
|
|
b'\xef\xbb\xbf#! something\n',
|
|
b'f# coding=utf-8\n',
|
|
b'print(something)\n',
|
|
b'do_something(else)\n'
|
|
)
|
|
encoding, consumed_lines = detect_encoding(self.get_readline(lines))
|
|
self.assertEqual(encoding, 'utf-8-sig')
|
|
self.assertEqual(consumed_lines,
|
|
[b'#! something\n', b'f# coding=utf-8\n'])
|
|
|
|
def test_mismatched_bom_and_cookie_second_line_raises_syntaxerror(self):
|
|
lines = (
|
|
b'\xef\xbb\xbf#! something\n',
|
|
b'# vim: set fileencoding=ascii :\n',
|
|
b'print(something)\n',
|
|
b'do_something(else)\n'
|
|
)
|
|
readline = self.get_readline(lines)
|
|
self.assertRaises(SyntaxError, detect_encoding, readline)
|
|
|
|
def test_cookie_second_line_noncommented_first_line(self):
|
|
lines = (
|
|
b"print('\xc2\xa3')\n",
|
|
b'# vim: set fileencoding=iso8859-15 :\n',
|
|
b"print('\xe2\x82\xac')\n"
|
|
)
|
|
encoding, consumed_lines = detect_encoding(self.get_readline(lines))
|
|
self.assertEqual(encoding, 'utf-8')
|
|
expected = [b"print('\xc2\xa3')\n"]
|
|
self.assertEqual(consumed_lines, expected)
|
|
|
|
def test_cookie_second_line_commented_first_line(self):
|
|
lines = (
|
|
b"#print('\xc2\xa3')\n",
|
|
b'# vim: set fileencoding=iso8859-15 :\n',
|
|
b"print('\xe2\x82\xac')\n"
|
|
)
|
|
encoding, consumed_lines = detect_encoding(self.get_readline(lines))
|
|
self.assertEqual(encoding, 'iso8859-15')
|
|
expected = [b"#print('\xc2\xa3')\n", b'# vim: set fileencoding=iso8859-15 :\n']
|
|
self.assertEqual(consumed_lines, expected)
|
|
|
|
def test_cookie_second_line_empty_first_line(self):
|
|
lines = (
|
|
b'\n',
|
|
b'# vim: set fileencoding=iso8859-15 :\n',
|
|
b"print('\xe2\x82\xac')\n"
|
|
)
|
|
encoding, consumed_lines = detect_encoding(self.get_readline(lines))
|
|
self.assertEqual(encoding, 'iso8859-15')
|
|
expected = [b'\n', b'# vim: set fileencoding=iso8859-15 :\n']
|
|
self.assertEqual(consumed_lines, expected)
|
|
|
|
def test_latin1_normalization(self):
|
|
# See get_normal_name() in tokenizer.c.
|
|
encodings = ("latin-1", "iso-8859-1", "iso-latin-1", "latin-1-unix",
|
|
"iso-8859-1-unix", "iso-latin-1-mac")
|
|
for encoding in encodings:
|
|
for rep in ("-", "_"):
|
|
enc = encoding.replace("-", rep)
|
|
lines = (b"#!/usr/bin/python\n",
|
|
b"# coding: " + enc.encode("ascii") + b"\n",
|
|
b"print(things)\n",
|
|
b"do_something += 4\n")
|
|
rl = self.get_readline(lines)
|
|
found, consumed_lines = detect_encoding(rl)
|
|
self.assertEqual(found, "iso-8859-1")
|
|
|
|
def test_syntaxerror_latin1(self):
|
|
# Issue 14629: need to raise SyntaxError if the first
|
|
# line(s) have non-UTF-8 characters
|
|
lines = (
|
|
b'print("\xdf")', # Latin-1: LATIN SMALL LETTER SHARP S
|
|
)
|
|
readline = self.get_readline(lines)
|
|
self.assertRaises(SyntaxError, detect_encoding, readline)
|
|
|
|
|
|
def test_utf8_normalization(self):
|
|
# See get_normal_name() in tokenizer.c.
|
|
encodings = ("utf-8", "utf-8-mac", "utf-8-unix")
|
|
for encoding in encodings:
|
|
for rep in ("-", "_"):
|
|
enc = encoding.replace("-", rep)
|
|
lines = (b"#!/usr/bin/python\n",
|
|
b"# coding: " + enc.encode("ascii") + b"\n",
|
|
b"1 + 3\n")
|
|
rl = self.get_readline(lines)
|
|
found, consumed_lines = detect_encoding(rl)
|
|
self.assertEqual(found, "utf-8")
|
|
|
|
def test_short_files(self):
|
|
readline = self.get_readline((b'print(something)\n',))
|
|
encoding, consumed_lines = detect_encoding(readline)
|
|
self.assertEqual(encoding, 'utf-8')
|
|
self.assertEqual(consumed_lines, [b'print(something)\n'])
|
|
|
|
encoding, consumed_lines = detect_encoding(self.get_readline(()))
|
|
self.assertEqual(encoding, 'utf-8')
|
|
self.assertEqual(consumed_lines, [])
|
|
|
|
readline = self.get_readline((b'\xef\xbb\xbfprint(something)\n',))
|
|
encoding, consumed_lines = detect_encoding(readline)
|
|
self.assertEqual(encoding, 'utf-8-sig')
|
|
self.assertEqual(consumed_lines, [b'print(something)\n'])
|
|
|
|
readline = self.get_readline((b'\xef\xbb\xbf',))
|
|
encoding, consumed_lines = detect_encoding(readline)
|
|
self.assertEqual(encoding, 'utf-8-sig')
|
|
self.assertEqual(consumed_lines, [])
|
|
|
|
readline = self.get_readline((b'# coding: bad\n',))
|
|
self.assertRaises(SyntaxError, detect_encoding, readline)
|
|
|
|
def test_false_encoding(self):
|
|
# Issue 18873: "Encoding" detected in non-comment lines
|
|
readline = self.get_readline((b'print("#coding=fake")',))
|
|
encoding, consumed_lines = detect_encoding(readline)
|
|
self.assertEqual(encoding, 'utf-8')
|
|
self.assertEqual(consumed_lines, [b'print("#coding=fake")'])
|
|
|
|
def test_open(self):
|
|
filename = support.TESTFN + '.py'
|
|
self.addCleanup(support.unlink, filename)
|
|
|
|
# test coding cookie
|
|
for encoding in ('iso-8859-15', 'utf-8'):
|
|
with open(filename, 'w', encoding=encoding) as fp:
|
|
print("# coding: %s" % encoding, file=fp)
|
|
print("print('euro:\u20ac')", file=fp)
|
|
with tokenize_open(filename) as fp:
|
|
self.assertEqual(fp.encoding, encoding)
|
|
self.assertEqual(fp.mode, 'r')
|
|
|
|
# test BOM (no coding cookie)
|
|
with open(filename, 'w', encoding='utf-8-sig') as fp:
|
|
print("print('euro:\u20ac')", file=fp)
|
|
with tokenize_open(filename) as fp:
|
|
self.assertEqual(fp.encoding, 'utf-8-sig')
|
|
self.assertEqual(fp.mode, 'r')
|
|
|
|
def test_filename_in_exception(self):
|
|
# When possible, include the file name in the exception.
|
|
path = 'some_file_path'
|
|
lines = (
|
|
b'print("\xdf")', # Latin-1: LATIN SMALL LETTER SHARP S
|
|
)
|
|
class Bunk:
|
|
def __init__(self, lines, path):
|
|
self.name = path
|
|
self._lines = lines
|
|
self._index = 0
|
|
|
|
def readline(self):
|
|
if self._index == len(lines):
|
|
raise StopIteration
|
|
line = lines[self._index]
|
|
self._index += 1
|
|
return line
|
|
|
|
with self.assertRaises(SyntaxError):
|
|
ins = Bunk(lines, path)
|
|
# Make sure lacking a name isn't an issue.
|
|
del ins.name
|
|
detect_encoding(ins.readline)
|
|
with self.assertRaisesRegex(SyntaxError, '.*{}'.format(path)):
|
|
ins = Bunk(lines, path)
|
|
detect_encoding(ins.readline)
|
|
|
|
def test_open_error(self):
|
|
# Issue #23840: open() must close the binary file on error
|
|
m = BytesIO(b'#coding:xxx')
|
|
with mock.patch('tokenize._builtin_open', return_value=m):
|
|
self.assertRaises(SyntaxError, tokenize_open, 'foobar')
|
|
self.assertTrue(m.closed)
|
|
|
|
|
|
class TestTokenize(TestCase):
|
|
|
|
def test_tokenize(self):
|
|
import tokenize as tokenize_module
|
|
encoding = object()
|
|
encoding_used = None
|
|
def mock_detect_encoding(readline):
|
|
return encoding, [b'first', b'second']
|
|
|
|
def mock__tokenize(readline, encoding):
|
|
nonlocal encoding_used
|
|
encoding_used = encoding
|
|
out = []
|
|
while True:
|
|
next_line = readline()
|
|
if next_line:
|
|
out.append(next_line)
|
|
continue
|
|
return out
|
|
|
|
counter = 0
|
|
def mock_readline():
|
|
nonlocal counter
|
|
counter += 1
|
|
if counter == 5:
|
|
return b''
|
|
return str(counter).encode()
|
|
|
|
orig_detect_encoding = tokenize_module.detect_encoding
|
|
orig__tokenize = tokenize_module._tokenize
|
|
tokenize_module.detect_encoding = mock_detect_encoding
|
|
tokenize_module._tokenize = mock__tokenize
|
|
try:
|
|
results = tokenize(mock_readline)
|
|
self.assertEqual(list(results),
|
|
[b'first', b'second', b'1', b'2', b'3', b'4'])
|
|
finally:
|
|
tokenize_module.detect_encoding = orig_detect_encoding
|
|
tokenize_module._tokenize = orig__tokenize
|
|
|
|
self.assertEqual(encoding_used, encoding)
|
|
|
|
def test_oneline_defs(self):
|
|
buf = []
|
|
for i in range(500):
|
|
buf.append('def i{i}(): return {i}'.format(i=i))
|
|
buf.append('OK')
|
|
buf = '\n'.join(buf)
|
|
|
|
# Test that 500 consequent, one-line defs is OK
|
|
toks = list(tokenize(BytesIO(buf.encode('utf-8')).readline))
|
|
self.assertEqual(toks[-3].string, 'OK') # [-1] is always ENDMARKER
|
|
# [-2] is always NEWLINE
|
|
|
|
def assertExactTypeEqual(self, opstr, *optypes):
|
|
tokens = list(tokenize(BytesIO(opstr.encode('utf-8')).readline))
|
|
num_optypes = len(optypes)
|
|
self.assertEqual(len(tokens), 3 + num_optypes)
|
|
self.assertEqual(tok_name[tokens[0].exact_type],
|
|
tok_name[ENCODING])
|
|
for i in range(num_optypes):
|
|
self.assertEqual(tok_name[tokens[i + 1].exact_type],
|
|
tok_name[optypes[i]])
|
|
self.assertEqual(tok_name[tokens[1 + num_optypes].exact_type],
|
|
tok_name[token.NEWLINE])
|
|
self.assertEqual(tok_name[tokens[2 + num_optypes].exact_type],
|
|
tok_name[token.ENDMARKER])
|
|
|
|
def test_exact_type(self):
|
|
self.assertExactTypeEqual('()', token.LPAR, token.RPAR)
|
|
self.assertExactTypeEqual('[]', token.LSQB, token.RSQB)
|
|
self.assertExactTypeEqual(':', token.COLON)
|
|
self.assertExactTypeEqual(',', token.COMMA)
|
|
self.assertExactTypeEqual(';', token.SEMI)
|
|
self.assertExactTypeEqual('+', token.PLUS)
|
|
self.assertExactTypeEqual('-', token.MINUS)
|
|
self.assertExactTypeEqual('*', token.STAR)
|
|
self.assertExactTypeEqual('/', token.SLASH)
|
|
self.assertExactTypeEqual('|', token.VBAR)
|
|
self.assertExactTypeEqual('&', token.AMPER)
|
|
self.assertExactTypeEqual('<', token.LESS)
|
|
self.assertExactTypeEqual('>', token.GREATER)
|
|
self.assertExactTypeEqual('=', token.EQUAL)
|
|
self.assertExactTypeEqual('.', token.DOT)
|
|
self.assertExactTypeEqual('%', token.PERCENT)
|
|
self.assertExactTypeEqual('{}', token.LBRACE, token.RBRACE)
|
|
self.assertExactTypeEqual('==', token.EQEQUAL)
|
|
self.assertExactTypeEqual('!=', token.NOTEQUAL)
|
|
self.assertExactTypeEqual('<=', token.LESSEQUAL)
|
|
self.assertExactTypeEqual('>=', token.GREATEREQUAL)
|
|
self.assertExactTypeEqual('~', token.TILDE)
|
|
self.assertExactTypeEqual('^', token.CIRCUMFLEX)
|
|
self.assertExactTypeEqual('<<', token.LEFTSHIFT)
|
|
self.assertExactTypeEqual('>>', token.RIGHTSHIFT)
|
|
self.assertExactTypeEqual('**', token.DOUBLESTAR)
|
|
self.assertExactTypeEqual('+=', token.PLUSEQUAL)
|
|
self.assertExactTypeEqual('-=', token.MINEQUAL)
|
|
self.assertExactTypeEqual('*=', token.STAREQUAL)
|
|
self.assertExactTypeEqual('/=', token.SLASHEQUAL)
|
|
self.assertExactTypeEqual('%=', token.PERCENTEQUAL)
|
|
self.assertExactTypeEqual('&=', token.AMPEREQUAL)
|
|
self.assertExactTypeEqual('|=', token.VBAREQUAL)
|
|
self.assertExactTypeEqual('^=', token.CIRCUMFLEXEQUAL)
|
|
self.assertExactTypeEqual('^=', token.CIRCUMFLEXEQUAL)
|
|
self.assertExactTypeEqual('<<=', token.LEFTSHIFTEQUAL)
|
|
self.assertExactTypeEqual('>>=', token.RIGHTSHIFTEQUAL)
|
|
self.assertExactTypeEqual('**=', token.DOUBLESTAREQUAL)
|
|
self.assertExactTypeEqual('//', token.DOUBLESLASH)
|
|
self.assertExactTypeEqual('//=', token.DOUBLESLASHEQUAL)
|
|
self.assertExactTypeEqual(':=', token.COLONEQUAL)
|
|
self.assertExactTypeEqual('...', token.ELLIPSIS)
|
|
self.assertExactTypeEqual('->', token.RARROW)
|
|
self.assertExactTypeEqual('@', token.AT)
|
|
self.assertExactTypeEqual('@=', token.ATEQUAL)
|
|
|
|
self.assertExactTypeEqual('a**2+b**2==c**2',
|
|
NAME, token.DOUBLESTAR, NUMBER,
|
|
token.PLUS,
|
|
NAME, token.DOUBLESTAR, NUMBER,
|
|
token.EQEQUAL,
|
|
NAME, token.DOUBLESTAR, NUMBER)
|
|
self.assertExactTypeEqual('{1, 2, 3}',
|
|
token.LBRACE,
|
|
token.NUMBER, token.COMMA,
|
|
token.NUMBER, token.COMMA,
|
|
token.NUMBER,
|
|
token.RBRACE)
|
|
self.assertExactTypeEqual('^(x & 0x1)',
|
|
token.CIRCUMFLEX,
|
|
token.LPAR,
|
|
token.NAME, token.AMPER, token.NUMBER,
|
|
token.RPAR)
|
|
|
|
def test_pathological_trailing_whitespace(self):
|
|
# See http://bugs.python.org/issue16152
|
|
self.assertExactTypeEqual('@ ', token.AT)
|
|
|
|
|
|
class UntokenizeTest(TestCase):
|
|
|
|
def test_bad_input_order(self):
|
|
# raise if previous row
|
|
u = Untokenizer()
|
|
u.prev_row = 2
|
|
u.prev_col = 2
|
|
with self.assertRaises(ValueError) as cm:
|
|
u.add_whitespace((1,3))
|
|
self.assertEqual(cm.exception.args[0],
|
|
'start (1,3) precedes previous end (2,2)')
|
|
# raise if previous column in row
|
|
self.assertRaises(ValueError, u.add_whitespace, (2,1))
|
|
|
|
def test_backslash_continuation(self):
|
|
# The problem is that <whitespace>\<newline> leaves no token
|
|
u = Untokenizer()
|
|
u.prev_row = 1
|
|
u.prev_col = 1
|
|
u.tokens = []
|
|
u.add_whitespace((2, 0))
|
|
self.assertEqual(u.tokens, ['\\\n'])
|
|
u.prev_row = 2
|
|
u.add_whitespace((4, 4))
|
|
self.assertEqual(u.tokens, ['\\\n', '\\\n\\\n', ' '])
|
|
TestRoundtrip.check_roundtrip(self, 'a\n b\n c\n \\\n c\n')
|
|
|
|
def test_iter_compat(self):
|
|
u = Untokenizer()
|
|
token = (NAME, 'Hello')
|
|
tokens = [(ENCODING, 'utf-8'), token]
|
|
u.compat(token, iter([]))
|
|
self.assertEqual(u.tokens, ["Hello "])
|
|
u = Untokenizer()
|
|
self.assertEqual(u.untokenize(iter([token])), 'Hello ')
|
|
u = Untokenizer()
|
|
self.assertEqual(u.untokenize(iter(tokens)), 'Hello ')
|
|
self.assertEqual(u.encoding, 'utf-8')
|
|
self.assertEqual(untokenize(iter(tokens)), b'Hello ')
|
|
|
|
|
|
class TestRoundtrip(TestCase):
|
|
|
|
def check_roundtrip(self, f):
|
|
"""
|
|
Test roundtrip for `untokenize`. `f` is an open file or a string.
|
|
The source code in f is tokenized to both 5- and 2-tuples.
|
|
Both sequences are converted back to source code via
|
|
tokenize.untokenize(), and the latter tokenized again to 2-tuples.
|
|
The test fails if the 3 pair tokenizations do not match.
|
|
|
|
When untokenize bugs are fixed, untokenize with 5-tuples should
|
|
reproduce code that does not contain a backslash continuation
|
|
following spaces. A proper test should test this.
|
|
"""
|
|
# Get source code and original tokenizations
|
|
if isinstance(f, str):
|
|
code = f.encode('utf-8')
|
|
else:
|
|
code = f.read()
|
|
f.close()
|
|
readline = iter(code.splitlines(keepends=True)).__next__
|
|
tokens5 = list(tokenize(readline))
|
|
tokens2 = [tok[:2] for tok in tokens5]
|
|
# Reproduce tokens2 from pairs
|
|
bytes_from2 = untokenize(tokens2)
|
|
readline2 = iter(bytes_from2.splitlines(keepends=True)).__next__
|
|
tokens2_from2 = [tok[:2] for tok in tokenize(readline2)]
|
|
self.assertEqual(tokens2_from2, tokens2)
|
|
# Reproduce tokens2 from 5-tuples
|
|
bytes_from5 = untokenize(tokens5)
|
|
readline5 = iter(bytes_from5.splitlines(keepends=True)).__next__
|
|
tokens2_from5 = [tok[:2] for tok in tokenize(readline5)]
|
|
self.assertEqual(tokens2_from5, tokens2)
|
|
|
|
def test_roundtrip(self):
|
|
# There are some standard formatting practices that are easy to get right.
|
|
|
|
self.check_roundtrip("if x == 1:\n"
|
|
" print(x)\n")
|
|
self.check_roundtrip("# This is a comment\n"
|
|
"# This also\n")
|
|
|
|
# Some people use different formatting conventions, which makes
|
|
# untokenize a little trickier. Note that this test involves trailing
|
|
# whitespace after the colon. Note that we use hex escapes to make the
|
|
# two trailing blanks apparent in the expected output.
|
|
|
|
self.check_roundtrip("if x == 1 : \n"
|
|
" print(x)\n")
|
|
fn = support.findfile("tokenize_tests.txt")
|
|
with open(fn, 'rb') as f:
|
|
self.check_roundtrip(f)
|
|
self.check_roundtrip("if x == 1:\n"
|
|
" # A comment by itself.\n"
|
|
" print(x) # Comment here, too.\n"
|
|
" # Another comment.\n"
|
|
"after_if = True\n")
|
|
self.check_roundtrip("if (x # The comments need to go in the right place\n"
|
|
" == 1):\n"
|
|
" print('x==1')\n")
|
|
self.check_roundtrip("class Test: # A comment here\n"
|
|
" # A comment with weird indent\n"
|
|
" after_com = 5\n"
|
|
" def x(m): return m*5 # a one liner\n"
|
|
" def y(m): # A whitespace after the colon\n"
|
|
" return y*4 # 3-space indent\n")
|
|
|
|
# Some error-handling code
|
|
self.check_roundtrip("try: import somemodule\n"
|
|
"except ImportError: # comment\n"
|
|
" print('Can not import' # comment2\n)"
|
|
"else: print('Loaded')\n")
|
|
|
|
def test_continuation(self):
|
|
# Balancing continuation
|
|
self.check_roundtrip("a = (3,4, \n"
|
|
"5,6)\n"
|
|
"y = [3, 4,\n"
|
|
"5]\n"
|
|
"z = {'a': 5,\n"
|
|
"'b':15, 'c':True}\n"
|
|
"x = len(y) + 5 - a[\n"
|
|
"3] - a[2]\n"
|
|
"+ len(z) - z[\n"
|
|
"'b']\n")
|
|
|
|
def test_backslash_continuation(self):
|
|
# Backslash means line continuation, except for comments
|
|
self.check_roundtrip("x=1+\\\n"
|
|
"1\n"
|
|
"# This is a comment\\\n"
|
|
"# This also\n")
|
|
self.check_roundtrip("# Comment \\\n"
|
|
"x = 0")
|
|
|
|
def test_string_concatenation(self):
|
|
# Two string literals on the same line
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self.check_roundtrip("'' ''")
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def test_random_files(self):
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# Test roundtrip on random python modules.
|
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# pass the '-ucpu' option to process the full directory.
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|
|
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import glob, random
|
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fn = support.findfile("tokenize_tests.txt")
|
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tempdir = os.path.dirname(fn) or os.curdir
|
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testfiles = glob.glob(os.path.join(tempdir, "test*.py"))
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|
|
|
# Tokenize is broken on test_pep3131.py because regular expressions are
|
|
# broken on the obscure unicode identifiers in it. *sigh*
|
|
# With roundtrip extended to test the 5-tuple mode of untokenize,
|
|
# 7 more testfiles fail. Remove them also until the failure is diagnosed.
|
|
|
|
testfiles.remove(os.path.join(tempdir, "test_unicode_identifiers.py"))
|
|
for f in ('buffer', 'builtin', 'fileio', 'inspect', 'os', 'platform', 'sys'):
|
|
testfiles.remove(os.path.join(tempdir, "test_%s.py") % f)
|
|
|
|
if not support.is_resource_enabled("cpu"):
|
|
testfiles = random.sample(testfiles, 10)
|
|
|
|
for testfile in testfiles:
|
|
if support.verbose >= 2:
|
|
print('tokenize', testfile)
|
|
with open(testfile, 'rb') as f:
|
|
with self.subTest(file=testfile):
|
|
self.check_roundtrip(f)
|
|
|
|
|
|
def roundtrip(self, code):
|
|
if isinstance(code, str):
|
|
code = code.encode('utf-8')
|
|
return untokenize(tokenize(BytesIO(code).readline)).decode('utf-8')
|
|
|
|
def test_indentation_semantics_retained(self):
|
|
"""
|
|
Ensure that although whitespace might be mutated in a roundtrip,
|
|
the semantic meaning of the indentation remains consistent.
|
|
"""
|
|
code = "if False:\n\tx=3\n\tx=3\n"
|
|
codelines = self.roundtrip(code).split('\n')
|
|
self.assertEqual(codelines[1], codelines[2])
|
|
self.check_roundtrip(code)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|