Crate swc_coverage_instrument

Macros

create_instrumentation_visitor

Expand given struct to contain necessary common filed for the coverage visitor with common utility functions.

instrumentation_branch_wrap_counter_helper

instrumentation_counter_helper

Interfaces to mark counters. Parent node visitor should pick up and insert marked counter accordingly. Unlike istanbul we can’t have single insert logic to be called in any arbitary child node.

instrumentation_stmt_counter_helper

Create a fn inserts stmt counter for each stmt

instrumentation_visitor

Generate common visitors to visit stmt.

visit_mut_for_like

A macro creates body for the for-variant visitors (for, for-of, for-in) which shares same logic. This also works for other loops like while, do-while.

Structs

Branch

FileCoverage

provides a read-only view of coverage for a single file. It has the following properties: path - the file path for which coverage is being tracked statementMap - map of statement locations keyed by statement index fnMap - map of function metadata keyed by function index branchMap - map of branch metadata keyed by branch index s - hit counts for statements f - hit count for functions b - hit count for branches

Function

InstrumentLogOptions

InstrumentOptions

Range

SourceMap

Enums

BranchType

Node

Statics

COVERAGE_MAGIC_KEY

COVERAGE_MAGIC_VALUE

Functions

create_coverage_instrumentation_visitor

Public interface to create a visitor performs transform to inject coverage instrumentation counter.

Type Definitions

BranchCoverageMap

BranchHitMap

BranchMap

FunctionMap

LineHitMap

Map to line number to hit count.

StatementMap