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authorLuke Lau <luke_lau@icloud.com>2020-05-22 17:34:57 +0100
committerBen Gamari <ben@smart-cactus.org>2021-03-10 15:55:09 -0500
commit8a59f49ae2204dbf58ef50ea8c0a50ee2c7aa64a (patch)
treebe7327cba2bc8b2d3187baebb92986a20e61d7af /compiler/GHC/HsToCore.hs
parente687ba83b0506bc800ceb79e6ee8cb0f8ed31ed6 (diff)
downloadhaskell-8a59f49ae2204dbf58ef50ea8c0a50ee2c7aa64a.tar.gz
template-haskell: Add putDoc, getDoc, withDecDoc and friends
This adds two new methods to the Quasi class, putDoc and getDoc. They allow Haddock documentation to be added to declarations, module headers, function arguments and class/type family instances, as well as looked up. It works by building up a map of names to attach pieces of documentation to, which are then added in the extractDocs function in GHC.HsToCore.Docs. However because these template haskell names need to be resolved to GHC names at the time they are added, putDoc cannot directly add documentation to declarations that are currently being spliced. To remedy this, withDecDoc/withDecsDoc wraps the operation with addModFinalizer, and provides a more ergonomic interface for doing so. Similarly, the funD_doc, dataD_doc etc. combinators provide a more ergonomic interface for documenting functions and their arguments simultaneously. This also changes ArgDocMap to use an IntMap rather than an Map Int, for efficiency. Part of the work towards #5467
Diffstat (limited to 'compiler/GHC/HsToCore.hs')
-rw-r--r--compiler/GHC/HsToCore.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/GHC/HsToCore.hs b/compiler/GHC/HsToCore.hs
index bf15fd2e10..fafcdb6533 100644
--- a/compiler/GHC/HsToCore.hs
+++ b/compiler/GHC/HsToCore.hs
@@ -214,7 +214,7 @@ deSugar hsc_env
; foreign_files <- readIORef th_foreign_files_var
- ; let (doc_hdr, decl_docs, arg_docs) = extractDocs tcg_env
+ ; (doc_hdr, decl_docs, arg_docs) <- extractDocs tcg_env
; let mod_guts = ModGuts {
mg_module = mod,