Method init has 378 lines of code (exceeds 25 allowed). Consider refactoring. Open
public static function init(): void
{
self::$noop = static function (Node $_): string {
return '(unknown)';
};File ASTReverter.php has 465 lines of code (exceeds 250 allowed). Consider refactoring. Open
<?php
declare(strict_types=1);
namespace Phan\AST;Function init has a Cognitive Complexity of 31 (exceeds 5 allowed). Consider refactoring. Open
public static function init(): void
{
self::$noop = static function (Node $_): string {
return '(unknown)';
};- Read upRead up
Cognitive Complexity
Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.
A method's cognitive complexity is based on a few simple rules:
- Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
- Code is considered more complex for each "break in the linear flow of the code"
- Code is considered more complex when "flow breaking structures are nested"
Further reading
The class ASTReverter has an overall complexity of 50 which is very high. The configured complexity threshold is 50. Open
class ASTReverter
{
public const EXEC_NODE_FLAG_NAMES = [
flags\EXEC_EVAL => 'eval',
flags\EXEC_INCLUDE => 'include',- Exclude checks
Function toShortString has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring. Open
public static function toShortString($node): string
{
if (!($node instanceof Node)) {
if ($node === null) {
// use lowercase 'null' instead of 'NULL'- Read upRead up
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
Avoid too many return statements within this method. Open
return sprintf(
'%s?->%s%s',
self::toShortString($node->children['expr']),
is_string($method_node) ? $method_node : self::toShortString($method_node),
self::toShortString($node->children['args'])Avoid too many return statements within this method. Open
return sprintf(
'%s%s',
self::toShortString($node->children['expr']),
self::toShortString($node->children['args'])
);Avoid too many return statements within this method. Open
return sprintf(
'(clone(%s))',
self::toShortString($node->children['expr'])
);Avoid too many return statements within this method. Open
return 'namespace\\' . $result;Avoid too many return statements within this method. Open
return sprintf(
'%s?->%s',
self::toShortString($node->children['expr']),
$prop_node instanceof Node ? '{' . self::toShortString($prop_node) . '}' : (string)$prop_node
);Avoid too many return statements within this method. Open
return (self::$closure_map[$node->kind] ?? self::$noop)($node);Avoid too many return statements within this method. Open
return $str;Avoid too many return statements within this method. Open
return self::toShortString($node->children['name']);Avoid too many return statements within this method. Open
return '\\' . $result;Avoid too many return statements within this method. Open
return sprintf('match (%s) {%s}', ASTReverter::toShortString($cond), $stmts->children ? ' ' . ASTReverter::toShortString($stmts) . ' ' : '');Avoid too many return statements within this method. Open
return sprintf(
'...(%s)',
self::toShortString($node->children['expr'])
);Avoid too many return statements within this method. Open
return sprintf(
'(%s)(%s)',
// @phan-suppress-next-line PhanAccessClassConstantInternal
PostOrderAnalysisVisitor::AST_CAST_FLAGS_LOOKUP[$node->flags] ?? 'unknown',
self::toShortString($node->children['expr'])Avoid too many return statements within this method. Open
return sprintf('(%s ?: %s)', self::toShortString($cond), self::toShortString($false));Avoid too many return statements within this method. Open
return self::toShortString($node->children['class']) . '::class';Avoid too many return statements within this method. Open
return '$' . (is_string($name_node) ? $name_node : ('{' . self::toShortString($name_node) . '}'));Avoid too many return statements within this method. Open
return "list($string)";Avoid too many return statements within this method. Open
return sprintf(
"(%s %s %s)",
self::toShortString($node->children['left']),
PostOrderAnalysisVisitor::NAME_FOR_BINARY_OP[$node->flags] ?? 'unknown',
self::toShortString($node->children['right'])Avoid too many return statements within this method. Open
return sprintf(
'print(%s)',
self::toShortString($node->children['expr'])
);Avoid too many return statements within this method. Open
return 'echo ' . ASTReverter::toShortString($node->children['expr']) . ';';Avoid too many return statements within this method. Open
return self::formatIncDec('%s--', $node->children['var']);Avoid too many return statements within this method. Open
return sprintf(
'%s::%s%s',
self::toShortString($node->children['class']),
is_string($method_node) ? $method_node : self::toShortString($method_node),
self::toShortString($node->children['args'])Avoid too many return statements within this method. Open
return sprintf(
'%s->%s%s',
self::toShortString($node->children['expr']),
is_string($method_node) ? $method_node : self::toShortString($method_node),
self::toShortString($node->children['args'])Avoid too many return statements within this method. Open
return sprintf(
'(%s instanceof %s)',
self::toShortString($node->children['expr']),
self::toShortString($node->children['class'])
);Avoid too many return statements within this method. Open
return sprintf(
'isset(%s)',
self::toShortString($node->children['var'])
);Avoid too many return statements within this method. Open
return sprintf(
'new %s%s',
self::toShortString($node->children['class']),
self::toShortString($node->children['args'])
);Avoid too many return statements within this method. Open
return self::formatIncDec('++%s', $node->children['var']);Avoid too many return statements within this method. Open
return UnionTypeVisitor::MAGIC_CONST_NAME_MAP[$node->flags] ?? '(unknown)';Avoid too many return statements within this method. Open
return (string)$result;Avoid too many return statements within this method. Open
return "[$string]";Avoid too many return statements within this method. Open
return sprintf(
"(%s =& %s)",
self::toShortString($node->children['var']),
self::toShortString($node->children['expr'])
);Avoid too many return statements within this method. Open
return $operation_name . $expr_text;Avoid too many return statements within this method. Open
return sprintf('%s => %s', $cond !== null ? ASTReverter::toShortString($cond) : 'default', ASTReverter::toShortString($expr));Avoid too many return statements within this method. Open
return sprintf(
'empty(%s)',
self::toShortString($node->children['expr'])
);Avoid too many return statements within this method. Open
return '(' . implode(', ', \array_map('self::toShortString', $node->children)) . ')';Avoid too many return statements within this method. Open
return sprintf(
"(%s %s= %s)",
self::toShortString($node->children['var']),
PostOrderAnalysisVisitor::NAME_FOR_BINARY_OP[$node->flags] ?? 'unknown',
self::toShortString($node->children['expr'])Avoid too many return statements within this method. Open
return '(unknown)';Avoid too many return statements within this method. Open
return sprintf("%s(%s)", $operation_name, $expr_text);Avoid too many return statements within this method. Open
return sprintf(
'%s->%s',
self::toShortString($node->children['expr']),
$prop_node instanceof Node ? '{' . self::toShortString($prop_node) . '}' : (string)$prop_node
);Avoid too many return statements within this method. Open
return implode(', ', \array_map(self::class . '::toShortString', $node->children));Avoid too many return statements within this method. Open
return '(' . implode(', ', \array_map('self::toShortString', $node->children)) . ')';Avoid too many return statements within this method. Open
return implode('|', \array_map('self::toShortString', $node->children));Avoid too many return statements within this method. Open
return sprintf(
'%s::$%s',
self::toShortString($node->children['class']),
$prop_node instanceof Node ? '{' . self::toShortString($prop_node) . '}' : (string)$prop_node
);Avoid too many return statements within this method. Open
return sprintf('(%s ? %s : %s)', self::toShortString($cond), self::toShortString($true), self::toShortString($false));Avoid too many return statements within this method. Open
return self::formatIncDec('%s++', $node->children['var']);Avoid too many return statements within this method. Open
return self::formatIncDec('--%s', $node->children['var']);Avoid too many return statements within this method. Open
return self::toShortString($node->children['class']) . '::' . $node->children['const'];Avoid too many return statements within this method. Open
return "${expr_str}{{$dim_str}}";Avoid too many return statements within this method. Open
return $node->children['name'] . ': ' . self::toShortString($node->children['expr']);Avoid too many return statements within this method. Open
return implode(', ', \array_map('self::toShortString', $node->children));Avoid too many return statements within this method. Open
return sprintf(
"(%s = %s)",
self::toShortString($node->children['var']),
self::toShortString($node->children['expr'])
);Avoid too many return statements within this method. Open
return '(unknown)';Avoid too many return statements within this method. Open
return "${expr_str}[$dim_str]";Avoid too many return statements within this method. Open
return sprintf(
'%s(%s)',
self::EXEC_NODE_FLAG_NAMES[$node->flags],
self::toShortString($node->children['expr'])
);Avoid too many return statements within this method. Open
return '`' . implode('', $parts) . '`';Avoid too many return statements within this method. Open
return sprintf(
'(throw %s)',
self::toShortString($node->children['expr'])
);Avoid too many return statements within this method. Open
return '(foreach loop)';Avoid too many return statements within this method. Open
return '(if statement)';Avoid too many return statements within this method. Open
return '"' . implode('', $parts) . '"';Avoid too many return statements within this method. Open
return '(if statement element)';Avoid too many return statements within this method. Open
return '(switch case statement)';Avoid too many return statements within this method. Open
return '(switch statement)';Avoid too many return statements within this method. Open
return '(function)';Avoid too many return statements within this method. Open
return '(switch case list)';Avoid too many return statements within this method. Open
return '(while loop)';Avoid too many return statements within this method. Open
return '(fn)';Avoid too many return statements within this method. Open
return '(do-while loop)';Avoid too many return statements within this method. Open
return '(for loop)';Avoid too many return statements within this method. Open
return '(try statement)';Avoid too many return statements within this method. Open
return sprintf(
'return %s;',
self::toShortString($node->children['expr'])
);The method init() has 401 lines of code. Current threshold is set to 100. Avoid really long methods. Open
public static function init(): void
{
self::$noop = static function (Node $_): string {
return '(unknown)';
};- Exclude checks
The method init() has an NPath complexity of 377487360. The configured NPath complexity threshold is 200. Open
public static function init(): void
{
self::$noop = static function (Node $_): string {
return '(unknown)';
};- Read upRead up
- Exclude checks
NPathComplexity
Since: 0.1
The NPath complexity of a method is the number of acyclic execution paths through that method. A threshold of 200 is generally considered the point where measures should be taken to reduce complexity.
Example
class Foo {
function bar() {
// lots of complicated code
}
}Source https://phpmd.org/rules/codesize.html#npathcomplexity
The method init() has a Cyclomatic Complexity of 33. The configured cyclomatic complexity threshold is 10. Open
public static function init(): void
{
self::$noop = static function (Node $_): string {
return '(unknown)';
};- Read upRead up
- Exclude checks
CyclomaticComplexity
Since: 0.1
Complexity is determined by the number of decision points in a method plus one for the method entry. The decision points are 'if', 'while', 'for', and 'case labels'. Generally, 1-4 is low complexity, 5-7 indicates moderate complexity, 8-10 is high complexity, and 11+ is very high complexity.
Example
// Cyclomatic Complexity = 11
class Foo {
1 public function example() {
2 if ($a == $b) {
3 if ($a1 == $b1) {
fiddle();
4 } elseif ($a2 == $b2) {
fiddle();
} else {
fiddle();
}
5 } elseif ($c == $d) {
6 while ($c == $d) {
fiddle();
}
7 } elseif ($e == $f) {
8 for ($n = 0; $n < $h; $n++) {
fiddle();
}
} else {
switch ($z) {
9 case 1:
fiddle();
break;
10 case 2:
fiddle();
break;
11 case 3:
fiddle();
break;
default:
fiddle();
break;
}
}
}
}Source https://phpmd.org/rules/codesize.html#cyclomaticcomplexity
Similar blocks of code found in 3 locations. Consider refactoring. Open
ast\AST_NULLSAFE_METHOD_CALL => static function (Node $node): string {
$method_node = $node->children['method'];
return sprintf(
'%s?->%s%s',
self::toShortString($node->children['expr']),- Read upRead up
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 97.
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
- Extract Method
- Extract Class
- Form Template Method
- Introduce Null Object
- Pull Up Method
- Pull Up Field
- Substitute Algorithm
Further Reading
- Don't Repeat Yourself on the C2 Wiki
- Duplicated Code on SourceMaking
- Refactoring: Improving the Design of Existing Code by Martin Fowler. Duplicated Code, p76
Similar blocks of code found in 3 locations. Consider refactoring. Open
ast\AST_METHOD_CALL => static function (Node $node): string {
$method_node = $node->children['method'];
return sprintf(
'%s->%s%s',
self::toShortString($node->children['expr']),- Read upRead up
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 97.
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
- Extract Method
- Extract Class
- Form Template Method
- Introduce Null Object
- Pull Up Method
- Pull Up Field
- Substitute Algorithm
Further Reading
- Don't Repeat Yourself on the C2 Wiki
- Duplicated Code on SourceMaking
- Refactoring: Improving the Design of Existing Code by Martin Fowler. Duplicated Code, p76
Similar blocks of code found in 3 locations. Consider refactoring. Open
ast\AST_STATIC_CALL => static function (Node $node): string {
$method_node = $node->children['method'];
return sprintf(
'%s::%s%s',
self::toShortString($node->children['class']),- Read upRead up
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 97.
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
- Extract Method
- Extract Class
- Form Template Method
- Introduce Null Object
- Pull Up Method
- Pull Up Field
- Substitute Algorithm
Further Reading
- Don't Repeat Yourself on the C2 Wiki
- Duplicated Code on SourceMaking
- Refactoring: Improving the Design of Existing Code by Martin Fowler. Duplicated Code, p76
Avoid variables with short names like $_. Configured minimum length is 3. Open
self::$noop = static function (Node $_): string {- Read upRead up
- Exclude checks
ShortVariable
Since: 0.2
Detects when a field, local, or parameter has a very short name.
Example
class Something {
private $q = 15; // VIOLATION - Field
public static function main( array $as ) { // VIOLATION - Formal
$r = 20 + $this->q; // VIOLATION - Local
for (int $i = 0; $i < 10; $i++) { // Not a Violation (inside FOR)
$r += $this->q;
}
}
}