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Method Tree.Visualizer has a Cognitive Complexity of 27 (exceeds 20 allowed). Consider refactoring.
Open

func (tree *Tree) Visualizer(fileName string) bool {
    it := tree.Iterator()
    dotString := "digraph G{bgcolor=azure;"
    nodeIndexCount := 0
    subGraphNumber := 0
Severity: Minor
Found in trees/btree/btree.go - 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

Similar blocks of code found in 2 locations. Consider refactoring.
Open

func (iterator *Iterator) Next() bool {
    if iterator.index < iterator.list.size {
        iterator.index++
    }
    if !iterator.list.withinRange(iterator.index) {
Severity: Major
Found in lists/singlylinkedlist/iterator.go and 1 other location - About 1 hr to fix
lists/doublylinkedlist/iterator.go on lines 25..39

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 152.

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

Similar blocks of code found in 2 locations. Consider refactoring.
Open

func (iterator *Iterator) Next() bool {
    if iterator.index < iterator.list.size {
        iterator.index++
    }
    if !iterator.list.withinRange(iterator.index) {
Severity: Major
Found in lists/doublylinkedlist/iterator.go and 1 other location - About 1 hr to fix
lists/singlylinkedlist/iterator.go on lines 29..43

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 152.

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

Method Iterator.Next has a Cognitive Complexity of 26 (exceeds 20 allowed). Consider refactoring.
Open

func (iterator *Iterator) Next() bool {
    if iterator.position == end {
        goto end
    }
    if iterator.position == begin {
Severity: Minor
Found in trees/redblacktree/iterator.go - 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

Method Iterator.Prev has a Cognitive Complexity of 26 (exceeds 20 allowed). Consider refactoring.
Open

func (iterator *Iterator) Prev() bool {
    if iterator.position == begin {
        goto begin
    }
    if iterator.position == end {
Severity: Minor
Found in trees/redblacktree/iterator.go - 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

Method Iterator.Next has a Cognitive Complexity of 25 (exceeds 20 allowed). Consider refactoring.
Open

func (iterator *Iterator) Next() bool {
    // If already at end, go to end
    if iterator.position == end {
        goto end
    }
Severity: Minor
Found in trees/btree/iterator.go - 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

Method Iterator.Prev has a Cognitive Complexity of 25 (exceeds 20 allowed). Consider refactoring.
Open

func (iterator *Iterator) Prev() bool {
    // If already at beginning, go to begin
    if iterator.position == begin {
        goto begin
    }
Severity: Minor
Found in trees/btree/iterator.go - 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

Method Tree.rebalance has 51 lines of code (exceeds 50 allowed). Consider refactoring.
Open

func (tree *Tree) rebalance(node *Node, deletedKey interface{}) {
    // check if rebalancing is needed
    if node == nil || len(node.Entries) >= tree.minEntries() {
        return
    }
Severity: Minor
Found in trees/btree/btree.go - About 1 hr to fix

    Similar blocks of code found in 2 locations. Consider refactoring.
    Open

    func (iterator *Iterator) Prev() bool {
    switch iterator.position {
    case end:
        iterator.position = between
        iterator.node = iterator.tree.Right()
    Severity: Minor
    Found in trees/avltree/iterator.go and 1 other location - About 55 mins to fix
    trees/avltree/iterator.go on lines 32..46

    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 127.

    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

    Similar blocks of code found in 2 locations. Consider refactoring.
    Open

    func (iterator *Iterator) Next() bool {
    switch iterator.position {
    case begin:
        iterator.position = between
        iterator.node = iterator.tree.Left()
    Severity: Minor
    Found in trees/avltree/iterator.go and 1 other location - About 55 mins to fix
    trees/avltree/iterator.go on lines 52..66

    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 127.

    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

    Similar blocks of code found in 2 locations. Consider refactoring.
    Open

            if it.node.Left != nil { // Left Child
            dotString += (strconv.Itoa(it.node.nodeIndex) + " -> " + strconv.Itoa(it.node.Left.nodeIndex) + ";")
        } else {
            dotString += (strconv.Itoa(it.node.nodeIndex) + " -> " + strconv.Itoa(NilNodes) + ";")
            NilNodes++
    Severity: Minor
    Found in trees/redblacktree/redblacktree.go and 1 other location - About 50 mins to fix
    trees/redblacktree/redblacktree.go on lines 324..329

    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 122.

    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

    Similar blocks of code found in 2 locations. Consider refactoring.
    Open

            if it.node.Right != nil { // Right Child
            dotString += (strconv.Itoa(it.node.nodeIndex) + " -> " + strconv.Itoa(it.node.Right.nodeIndex) + ";")
        } else {
            dotString += (strconv.Itoa(it.node.nodeIndex) + " -> " + strconv.Itoa(NilNodes) + ";")
            NilNodes++
    Severity: Minor
    Found in trees/redblacktree/redblacktree.go and 1 other location - About 50 mins to fix
    trees/redblacktree/redblacktree.go on lines 318..323

    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 122.

    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

    Similar blocks of code found in 2 locations. Consider refactoring.
    Open

    func (list *List) String() string {
    str := "SinglyLinkedList\n"
    values := []string{}
    for element := list.first; element != nil; element = element.next {
        values = append(values, fmt.Sprintf("%v", element.value))
    Severity: Minor
    Found in lists/singlylinkedlist/singlylinkedlist.go and 1 other location - About 45 mins to fix
    lists/doublylinkedlist/doublylinkedlist.go on lines 293..301

    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 114.

    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

    Similar blocks of code found in 2 locations. Consider refactoring.
    Open

    func (list *List) String() string {
    str := "DoublyLinkedList\n"
    values := []string{}
    for element := list.first; element != nil; element = element.next {
        values = append(values, fmt.Sprintf("%v", element.value))
    Severity: Minor
    Found in lists/doublylinkedlist/doublylinkedlist.go and 1 other location - About 45 mins to fix
    lists/singlylinkedlist/singlylinkedlist.go on lines 260..268

    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 114.

    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

    Identical blocks of code found in 2 locations. Consider refactoring.
    Open

    func (list *List) Values() []interface{} {
    values := make([]interface{}, list.size, list.size)
    for e, element := 0, list.first; element != nil; e, element = e+1, element.next {
        values[e] = element.value
    }
    Severity: Minor
    Found in lists/singlylinkedlist/singlylinkedlist.go and 1 other location - About 40 mins to fix
    lists/doublylinkedlist/doublylinkedlist.go on lines 165..171

    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 111.

    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

    Identical blocks of code found in 2 locations. Consider refactoring.
    Open

    func (list *List) Values() []interface{} {
    values := make([]interface{}, list.size, list.size)
    for e, element := 0, list.first; element != nil; e, element = e+1, element.next {
        values[e] = element.value
    }
    Severity: Minor
    Found in lists/doublylinkedlist/doublylinkedlist.go and 1 other location - About 40 mins to fix
    lists/singlylinkedlist/singlylinkedlist.go on lines 145..151

    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 111.

    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

    Method Tree.remove has 6 return statements (exceeds 4 allowed).
    Open

    func (t *Tree) remove(key interface{}, qp **Node) bool {
    q := *qp
    if q == nil {
        return false
    }
    Severity: Major
    Found in trees/avltree/avltree.go - About 40 mins to fix

      Similar blocks of code found in 2 locations. Consider refactoring.
      Open

      func (tree *Tree) rotateLeft(node *Node) {
    right := node.Right
    tree.replaceNode(node, right)
    node.Right = right.Left
    if right.Left != nil {
      Severity: Minor
      Found in trees/redblacktree/redblacktree.go and 1 other location - About 35 mins to fix
      trees/redblacktree/redblacktree.go on lines 404..413

      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 107.

      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

      Similar blocks of code found in 2 locations. Consider refactoring.
      Open

      func (tree *Tree) rotateRight(node *Node) {
    left := node.Left
    tree.replaceNode(node, left)
    node.Left = left.Right
    if left.Right != nil {
      Severity: Minor
      Found in trees/redblacktree/redblacktree.go and 1 other location - About 35 mins to fix
      trees/redblacktree/redblacktree.go on lines 393..402

      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 107.

      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

      Similar blocks of code found in 6 locations. Consider refactoring.
      Open

      func (tree *Tree) Keys() []interface{} {
    keys := make([]interface{}, tree.size)
    it := tree.Iterator()
    for i := 0; it.Next(); i++ {
        keys[i] = it.Key()
      Severity: Major
      Found in trees/redblacktree/redblacktree.go and 5 other locations - About 35 mins to fix
      trees/avltree/avltree.go on lines 93..100
      trees/avltree/avltree.go on lines 103..110
      trees/btree/btree.go on lines 120..127
      trees/btree/btree.go on lines 130..137
      trees/redblacktree/redblacktree.go on lines 166..173

      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 103.

      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

      Severity
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      Status
      Source
      Language