Metastatic.Analysis.Complexity.FunctionMetrics (Metastatic v0.10.4)

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Function-level complexity metrics.

Note: MetaAST currently doesn't have a function_definition construct. For Phase 4, we analyze the entire document as a single "function".

Future enhancement: Add function_definition to MetaAST M2.2 Extended layer for per-function analysis.

Metrics

  • Statement count: Number of executable statements
  • Return points: Number of early_return nodes
  • Variable count: Number of distinct variables used
  • Parameter count: 0 (not applicable without function_definition)

Examples

iex> ast = {:assignment, [], [{:variable, [], "x"}, {:literal, [subtype: :integer], 5}]}
iex> metrics = Metastatic.Analysis.Complexity.FunctionMetrics.calculate(ast)
iex> metrics.statement_count
1
iex> metrics.variable_count
1

Summary

Types

t()

Functions

calculate(ast)

Calculates function-level metrics for a MetaAST node.

Types

t()

@type t() :: %{
  statement_count: non_neg_integer(),
  return_points: non_neg_integer(),
  variable_count: non_neg_integer(),
  parameter_count: non_neg_integer()
}

Functions

calculate(ast)

@spec calculate(Metastatic.AST.meta_ast()) :: t()

Calculates function-level metrics for a MetaAST node.

Examples

iex> ast = {:early_return, [], [{:variable, [], "x"}]}
iex> metrics = Metastatic.Analysis.Complexity.FunctionMetrics.calculate(ast)
iex> metrics.return_points
1