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GHC 9.10.3 · lts/ghc-9.10.x · c74966e · 2026-09-27

Moduleghc-9.10.3GHC2021

GHC.HsToCore.Ticks

3 types
3 values

Packageghc-9.10.3
Exports6
LanguageGHC2021
LicenceBSD-3-Clause
SourceTicks.hs

datadata TicksConfig

Configuration for compilation pass to add tick for instrumentation to binding sites.

Constructors

TicksConfig
- ticks_passes :: ![TickishType]
  What purposes do we need ticks for
- ticks_profAuto :: !ProfAuto
  What kind of {-# SCC #-} to add automatically
- ticks_countEntries :: !Bool
  Whether to count the entries to functions
  Requires extra synchronization which can vastly degrade performance.

datadata Tick

Constructors

Tick
- tick_loc :: SrcSpan
  Tick source span
- tick_path :: [String]
  Path to the declaration
- tick_ids :: [OccName]
  Identifiers being bound
- tick_label :: BoxLabel
  Label for the tick counter

datadata TickishType

Reasons why we need ticks,

Constructors

ProfNotes
For profiling
HpcTicks
For Haskell Program Coverage
Breakpoints
For ByteCode interpreter break points
SourceNotes
For source notes

Instances1Eq

Eq TickishTypeDefined in ghc-9.10.3 · GHC.HsToCore.Ticks

valueaddTicksToBinds

:: Logger
-> TicksConfig
-> Module
-> ModLocation
location of the current module
-> NameSet
Exported Ids. When we call addTicksToBinds, isExportedId doesn't work yet (the desugarer hasn't set it), so we have to work from this set.
-> [TyCon]
Type constructors in this module
-> LHsBinds GhcTc
-> IO (LHsBinds GhcTc, Maybe (FilePath, SizedSeq Tick))

valueisGoodSrcSpan' :: SrcSpan -> Bool

valuestripTicksTopHsExpr :: HsExpr GhcTc -> ([CoreTickish], HsExpr GhcTc)

Strip CoreTicks from an HsExpr