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authorEdward Z. Yang <ezyang@cs.stanford.edu>2015-10-01 15:24:41 -0700
committerEdward Z. Yang <ezyang@cs.stanford.edu>2015-10-08 15:55:08 -0700
commit931d0a7d1cd296f8c2a6190a06a2d3dcc8996ac3 (patch)
treeaae7530fdcdef2ae332a84d85ead11882941656d /testsuite/tests/warnings
parentf64f7c36ef9395da1cc7b686aaf1b019204cd0fc (diff)
downloadhaskell-931d0a7d1cd296f8c2a6190a06a2d3dcc8996ac3.tar.gz
Move orphan instance/rule warnings to typechecker/desugarer.
Summary: Instead of doing these warnings at MkIface time, we do them when we create the instances/rules in the typechecker/desugarer. Emitting warnings for auto-generated instances was a pain (since the specialization monad doesn't have the capacity to emit warnings) so instead I just deprecated -fwarn-auto-orphans. Auto rule orphans are pretty harmless anyway: they don't cause interface files to be eagerly loaded in. Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu> Test Plan: validate Reviewers: simonpj, austin, bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1297
Diffstat (limited to 'testsuite/tests/warnings')
-rw-r--r--testsuite/tests/warnings/should_compile/T9178.stderr4
1 files changed, 2 insertions, 2 deletions
diff --git a/testsuite/tests/warnings/should_compile/T9178.stderr b/testsuite/tests/warnings/should_compile/T9178.stderr
index c1e99bc516..d22f428763 100644
--- a/testsuite/tests/warnings/should_compile/T9178.stderr
+++ b/testsuite/tests/warnings/should_compile/T9178.stderr
@@ -1,8 +1,8 @@
[1 of 2] Compiling T9178DataType ( T9178DataType.hs, T9178DataType.o )
[2 of 2] Compiling T9178 ( T9178.hs, T9178.o )
-T9178.hs:8:10: warning:
- Orphan instance: instance [safe] Show T9178_Type
+T9178.hs:8:1: warning:
+ Orphan instance: instance Show T9178_Type
To avoid this
move the instance declaration to the module of the class or of the type, or
wrap the type with a newtype and declare the instance on the new type.