Function combineScopeList has a Cognitive Complexity of 35 (exceeds 5 allowed). Consider refactoring. Open
public function combineScopeList(array $scope_list): Context
{
if (\count($scope_list) < 2) {
throw new AssertionError("Expected at least two child contexts in " . __METHOD__);
}- 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
Method combineScopeList has 95 lines of code (exceeds 25 allowed). Consider refactoring. Open
public function combineScopeList(array $scope_list): Context
{
if (\count($scope_list) < 2) {
throw new AssertionError("Expected at least two child contexts in " . __METHOD__);
}The class ContextMergeVisitor has an overall complexity of 53 which is very high. The configured complexity threshold is 50. Open
class ContextMergeVisitor extends KindVisitorImplementation
{
/**
* @var Context
* The context in which the node we're going to be looking- Exclude checks
Function mergeCatchContext has a Cognitive Complexity of 16 (exceeds 5 allowed). Consider refactoring. Open
public function mergeCatchContext(Node $node): Context
{
if (\count($this->child_context_list) < 2) {
throw new AssertionError("Expected at least two contexts in " . __METHOD__);
}- 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
Method mergeCatchContext has 45 lines of code (exceeds 25 allowed). Consider refactoring. Open
public function mergeCatchContext(Node $node): Context
{
if (\count($this->child_context_list) < 2) {
throw new AssertionError("Expected at least two contexts in " . __METHOD__);
}Avoid too many return statements within this method. Open
return $result;Avoid too many return statements within this method. Open
return $type_list[0] ?? UnionType::empty();Avoid too many return statements within this method. Open
return $result->asNormalizedTypes();Avoid too many return statements within this method. Open
return ArrayShapeType::fromFieldTypes($new_field_types, $type->isNullable());Avoid too many return statements within this method. Open
return $type;Avoid too many return statements within this method. Open
return $this->context->withScope($scope);The method combineScopeList() has 141 lines of code. Current threshold is set to 100. Avoid really long methods. Open
public function combineScopeList(array $scope_list): Context
{
if (\count($scope_list) < 2) {
throw new AssertionError("Expected at least two child contexts in " . __METHOD__);
}- Exclude checks
The method mergeCatchContext() has an NPath complexity of 288. The configured NPath complexity threshold is 200. Open
public function mergeCatchContext(Node $node): Context
{
if (\count($this->child_context_list) < 2) {
throw new AssertionError("Expected at least two contexts in " . __METHOD__);
}- 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 combineScopeList() has an NPath complexity of 26040. The configured NPath complexity threshold is 200. Open
public function combineScopeList(array $scope_list): Context
{
if (\count($scope_list) < 2) {
throw new AssertionError("Expected at least two child contexts in " . __METHOD__);
}- 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 combineScopeList() has a Cyclomatic Complexity of 21. The configured cyclomatic complexity threshold is 10. Open
public function combineScopeList(array $scope_list): Context
{
if (\count($scope_list) < 2) {
throw new AssertionError("Expected at least two child contexts in " . __METHOD__);
}- 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
The method mergeCatchContext() has a Cyclomatic Complexity of 11. The configured cyclomatic complexity threshold is 10. Open
public function mergeCatchContext(Node $node): Context
{
if (\count($this->child_context_list) < 2) {
throw new AssertionError("Expected at least two contexts in " . __METHOD__);
}- 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;
}
}
}
}