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lts/deps/v8/third_party/jinja2/parser.py

Summary

Maintainability
F
2 mos
Test Coverage

File parser.py has 793 lines of code (exceeds 250 allowed). Consider refactoring.
Open

# -*- coding: utf-8 -*-
"""
    jinja2.parser
    ~~~~~~~~~~~~~
Severity: Major
Found in lts/deps/v8/third_party/jinja2/parser.py - About 1 day to fix

    Parser has 50 functions (exceeds 20 allowed). Consider refactoring.
    Open

    class Parser(object):
    """This is the central parsing class Jinja2 uses.  It's passed to
    extensions and can be used to parse expressions or statements.
    """
    Severity: Minor
    Found in lts/deps/v8/third_party/jinja2/parser.py - About 7 hrs to fix

      Function parse_from has a Cognitive Complexity of 23 (exceeds 5 allowed). Consider refactoring.
      Open

          def parse_from(self):
        node = nodes.FromImport(lineno=next(self.stream).lineno)
        node.template = self.parse_expression()
        self.stream.expect('name:import')
        node.names = []
      Severity: Minor
      Found in lts/deps/v8/third_party/jinja2/parser.py - About 3 hrs to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Function subparse has a Cognitive Complexity of 20 (exceeds 5 allowed). Consider refactoring.
      Open

          def subparse(self, end_tokens=None):
        body = []
        data_buffer = []
        add_data = data_buffer.append
      Severity: Minor
      Found in lts/deps/v8/third_party/jinja2/parser.py - About 2 hrs to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Function parse_call has a Cognitive Complexity of 17 (exceeds 5 allowed). Consider refactoring.
      Open

          def parse_call(self, node):
        token = self.stream.expect('lparen')
        args = []
        kwargs = []
        dyn_args = dyn_kwargs = None
      Severity: Minor
      Found in lts/deps/v8/third_party/jinja2/parser.py - About 2 hrs to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Function parse_tuple has a Cognitive Complexity of 16 (exceeds 5 allowed). Consider refactoring.
      Open

          def parse_tuple(self, simplified=False, with_condexpr=True,
                    extra_end_rules=None, explicit_parentheses=False):
        """Works like `parse_expression` but if multiple expressions are
        delimited by a comma a :class:`~jinja2.nodes.Tuple` node is created.
        This method could also return a regular expression instead of a tuple
      Severity: Minor
      Found in lts/deps/v8/third_party/jinja2/parser.py - About 2 hrs to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Function parse_primary has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.
      Open

          def parse_primary(self):
        token = self.stream.current
        if token.type == 'name':
            if token.value in ('true', 'false', 'True', 'False'):
                node = nodes.Const(token.value in ('true', 'True'),
      Severity: Minor
      Found in lts/deps/v8/third_party/jinja2/parser.py - About 1 hr to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Function parse_subscript has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.
      Open

          def parse_subscript(self, node):
        token = next(self.stream)
        if token.type == 'dot':
            attr_token = self.stream.current
            next(self.stream)
      Severity: Minor
      Found in lts/deps/v8/third_party/jinja2/parser.py - About 1 hr to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Function parse_subscribed has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.
      Open

          def parse_subscribed(self):
        lineno = self.stream.current.lineno

        if self.stream.current.type == 'colon':
            next(self.stream)
      Severity: Minor
      Found in lts/deps/v8/third_party/jinja2/parser.py - About 1 hr to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Function _fail_ut_eof has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
      Open

          def _fail_ut_eof(self, name, end_token_stack, lineno):
        expected = []
        for exprs in end_token_stack:
            expected.extend(imap(describe_token_expr, exprs))
        if end_token_stack:
      Severity: Minor
      Found in lts/deps/v8/third_party/jinja2/parser.py - About 1 hr to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Function parse_test has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.
      Open

          def parse_test(self, node):
        token = next(self.stream)
        if self.stream.current.test('name:not'):
            next(self.stream)
            negated = True
      Severity: Minor
      Found in lts/deps/v8/third_party/jinja2/parser.py - About 1 hr to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Function parse_filter has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
      Open

          def parse_filter(self, node, start_inline=False):
        while self.stream.current.type == 'pipe' or start_inline:
            if not start_inline:
                next(self.stream)
            token = self.stream.expect('name')
      Severity: Minor
      Found in lts/deps/v8/third_party/jinja2/parser.py - About 55 mins to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Function parse_assign_target has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
      Open

          def parse_assign_target(self, with_tuple=True, name_only=False,
                            extra_end_rules=None, with_namespace=False):
        """Parse an assignment target.  As Jinja2 allows assignments to
        tuples, this function can parse all allowed assignment targets.  Per
        default assignments to tuples are parsed, that can be disable however
      Severity: Minor
      Found in lts/deps/v8/third_party/jinja2/parser.py - About 45 mins to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Function parse_compare has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
      Open

          def parse_compare(self):
        lineno = self.stream.current.lineno
        expr = self.parse_math1()
        ops = []
        while 1:
      Severity: Minor
      Found in lts/deps/v8/third_party/jinja2/parser.py - About 45 mins to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Function __init__ has 5 arguments (exceeds 4 allowed). Consider refactoring.
      Open

          def __init__(self, environment, source, name=None, filename=None,
      Severity: Minor
      Found in lts/deps/v8/third_party/jinja2/parser.py - About 35 mins to fix

        Function parse_filter_expr has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
        Open

            def parse_filter_expr(self, node):
        while 1:
            token_type = self.stream.current.type
            if token_type == 'pipe':
                node = self.parse_filter(node)
        Severity: Minor
        Found in lts/deps/v8/third_party/jinja2/parser.py - About 35 mins to fix

        Cognitive Complexity

        Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

        A method's cognitive complexity is based on a few simple rules:

        • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
        • Code is considered more complex for each "break in the linear flow of the code"
        • Code is considered more complex when "flow breaking structures are nested"

        Further reading

        Function parse_postfix has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
        Open

            def parse_postfix(self, node):
        while 1:
            token_type = self.stream.current.type
            if token_type == 'dot' or token_type == 'lbracket':
                node = self.parse_subscript(node)
        Severity: Minor
        Found in lts/deps/v8/third_party/jinja2/parser.py - About 25 mins to fix

        Cognitive Complexity

        Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

        A method's cognitive complexity is based on a few simple rules:

        • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
        • Code is considered more complex for each "break in the linear flow of the code"
        • Code is considered more complex when "flow breaking structures are nested"

        Further reading

        Function parse_signature has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
        Open

            def parse_signature(self, node):
        node.args = args = []
        node.defaults = defaults = []
        self.stream.expect('lparen')
        while self.stream.current.type != 'rparen':
        Severity: Minor
        Found in lts/deps/v8/third_party/jinja2/parser.py - About 25 mins to fix

        Cognitive Complexity

        Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

        A method's cognitive complexity is based on a few simple rules:

        • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
        • Code is considered more complex for each "break in the linear flow of the code"
        • Code is considered more complex when "flow breaking structures are nested"

        Further reading

        Function parse_statement has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
        Open

            def parse_statement(self):
        """Parse a single statement."""
        token = self.stream.current
        if token.type != 'name':
            self.fail('tag name expected', token.lineno)
        Severity: Minor
        Found in lts/deps/v8/third_party/jinja2/parser.py - About 25 mins to fix

        Cognitive Complexity

        Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

        A method's cognitive complexity is based on a few simple rules:

        • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
        • Code is considered more complex for each "break in the linear flow of the code"
        • Code is considered more complex when "flow breaking structures are nested"

        Further reading

        Identical blocks of code found in 4 locations. Consider refactoring.
        Open

        Severity: Major
        Found in lts/deps/v8/third_party/jinja2/parser.py and 3 other locations - About 2 mos to fix
        current/deps/v8/third_party/jinja2/parser.py on lines 0..903
        current/tools/inspector_protocol/jinja2/parser.py on lines 0..903
        lts/tools/inspector_protocol/jinja2/parser.py on lines 0..903

        Duplicated Code

        Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

        Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

        When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

        Tuning

        This issue has a mass of 7175.

        We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

        The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

        If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

        See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

        Refactorings

        Further Reading

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