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| author | Profpatsch <mail@profpatsch.de> | 2018-04-02 17:21:35 +0200 |
|---|---|---|
| committer | Profpatsch <mail@profpatsch.de> | 2018-04-27 18:59:39 +0200 |
| commit | a5f6cdfd7ef36c0ee3c8bda8b487d1292838862f (patch) | |
| tree | d760d406be34e555ad39fce953a5822c27e44ad0 /lib | |
| parent | f13873f35aaff640e8cf16f3dd9dce01f6661687 (diff) | |
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lib/debug: add traceValFn, traceValSeqFn, traceValSeqNFn
Being able to modify the value on-the-fly before printing is very useful in practice.
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/debug.nix | 9 | ||||
| -rw-r--r-- | lib/default.nix | 9 |
2 files changed, 11 insertions, 7 deletions
diff --git a/lib/debug.nix b/lib/debug.nix index d163e60b695..d5e9473ff77 100644 --- a/lib/debug.nix +++ b/lib/debug.nix @@ -17,7 +17,8 @@ rec { traceIf = p: msg: x: if p then trace msg x else x; - traceVal = x: trace x x; + traceValFn = f: x: trace (f x) x; + traceVal = traceValFn id; traceXMLVal = x: trace (builtins.toXML x) x; traceXMLValMarked = str: x: trace (str + builtins.toXML x) x; @@ -44,9 +45,11 @@ rec { (modify depth snip x)) y; /* `traceSeq`, but the same value is traced and returned */ - traceValSeq = v: traceVal (builtins.deepSeq v v); + traceValSeqFn = f: v: traceVal f (builtins.deepSeq v v); + traceValSeq = traceValSeqFn id; /* `traceValSeq` but with fixed depth */ - traceValSeqN = depth: v: traceSeqN depth v v; + traceValSeqNFn = f: depth: v: traceSeqN depth (f v) v; + traceValSeqN = traceValSeqNFn id; # this can help debug your code as well - designed to not produce thousands of lines diff --git a/lib/default.nix b/lib/default.nix index c292ed33e1d..23e276732db 100644 --- a/lib/default.nix +++ b/lib/default.nix @@ -115,11 +115,12 @@ let unknownModule mkOption; inherit (types) isType setType defaultTypeMerge defaultFunctor isOptionType mkOptionType; - inherit (debug) addErrorContextToAttrs traceIf traceVal + inherit (debug) addErrorContextToAttrs traceIf traceVal traceValFn traceXMLVal traceXMLValMarked traceSeq traceSeqN traceValSeq - traceValSeqN traceShowVal traceShowValMarked - showVal traceCall traceCall2 traceCall3 traceValIfNot runTests - testAllTrue strict traceCallXml attrNamesToStr; + traceValSeqFn traceValSeqN traceValSeqNFn traceShowVal + traceShowValMarked showVal traceCall traceCall2 traceCall3 + traceValIfNot runTests testAllTrue strict traceCallXml + attrNamesToStr; inherit (misc) maybeEnv defaultMergeArg defaultMerge foldArgs defaultOverridableDelayableArgs composedArgsAndFun maybeAttrNullable maybeAttr ifEnable checkFlag getValue |