pub struct ComplexityCalculator { /* private fields */ }Expand description
Calculates complexity metrics from AST nodes
Implementations§
Source§impl ComplexityCalculator
impl ComplexityCalculator
Sourcepub fn new(source: impl Into<String>) -> Self
pub fn new(source: impl Into<String>) -> Self
Create a new calculator with the given source code
Sourcepub fn calculate(
&self,
node: &Node<'_>,
language: Language,
) -> ComplexityMetrics
pub fn calculate( &self, node: &Node<'_>, language: Language, ) -> ComplexityMetrics
Calculate all complexity metrics for a function node
Sourcepub fn cyclomatic_complexity(&self, node: &Node<'_>, language: Language) -> u32
pub fn cyclomatic_complexity(&self, node: &Node<'_>, language: Language) -> u32
Calculate cyclomatic complexity (McCabe’s complexity)
CC = E - N + 2P (for a single function, P=1) Simplified: CC = 1 + number of decision points
Decision points: if, else if, while, for, case, catch, &&, ||, ?:
Sourcepub fn cognitive_complexity(&self, node: &Node<'_>, language: Language) -> u32
pub fn cognitive_complexity(&self, node: &Node<'_>, language: Language) -> u32
Calculate cognitive complexity
Cognitive complexity measures how hard code is to understand. It penalizes nesting, breaks in linear flow, and complex control structures.
Sourcepub fn halstead_metrics(
&self,
node: &Node<'_>,
language: Language,
) -> Option<HalsteadMetrics>
pub fn halstead_metrics( &self, node: &Node<'_>, language: Language, ) -> Option<HalsteadMetrics>
Calculate Halstead complexity metrics
Sourcepub fn loc_metrics(&self, node: &Node<'_>) -> LocMetrics
pub fn loc_metrics(&self, node: &Node<'_>) -> LocMetrics
Calculate lines of code metrics
Sourcepub fn max_nesting_depth(&self, node: &Node<'_>, language: Language) -> u32
pub fn max_nesting_depth(&self, node: &Node<'_>, language: Language) -> u32
Calculate maximum nesting depth
Sourcepub fn parameter_count(&self, node: &Node<'_>, _language: Language) -> u32
pub fn parameter_count(&self, node: &Node<'_>, _language: Language) -> u32
Count number of parameters
Sourcepub fn return_count(&self, node: &Node<'_>, _language: Language) -> u32
pub fn return_count(&self, node: &Node<'_>, _language: Language) -> u32
Count number of return statements
Auto Trait Implementations§
impl Freeze for ComplexityCalculator
impl RefUnwindSafe for ComplexityCalculator
impl Send for ComplexityCalculator
impl Sync for ComplexityCalculator
impl Unpin for ComplexityCalculator
impl UnwindSafe for ComplexityCalculator
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