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Diffstat (limited to 'utils/check-ppr/README')
| -rw-r--r-- | utils/check-ppr/README | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/utils/check-ppr/README b/utils/check-ppr/README deleted file mode 100644 index f9b502e4a7..0000000000 --- a/utils/check-ppr/README +++ /dev/null @@ -1,26 +0,0 @@ - -This programme is intended to be used by any GHC developers working on the AST -and/or pretty printer by providing a way to check that the same AST is generated -from the pretty printed AST as from the original source. - -i.e., it checks whether - - parse (ppr (parse s)) === parse s - - -This utility is also intended to be used in tests, so that when new features are -added the ability to round-trip the AST via ppr is tested. - -Usage - -In a test Makefile - - $(CHECK_PPR) "`'$(TEST_HC)' $(TEST_HC_OPTS) --print-libdir | tr -d '\r'`" FileToParse.hs - -See examples in (REPO_HOME)/testsuite/tests/printer/Makefile - -The utility generates the following files for ToBeTested.hs - - - ToBeTested.ppr.hs : the ppr result - - ToBeTested.hs.ast : the AST of the original source - - ToBeTested.hs.ast.new : the AST of the re-parsed ppr source |