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Diffstat (limited to 'src/compiler/scala/tools/nsc/typechecker/Infer.scala')
| -rw-r--r-- | src/compiler/scala/tools/nsc/typechecker/Infer.scala | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/compiler/scala/tools/nsc/typechecker/Infer.scala b/src/compiler/scala/tools/nsc/typechecker/Infer.scala index 1397aa06eb..621b6dce11 100644 --- a/src/compiler/scala/tools/nsc/typechecker/Infer.scala +++ b/src/compiler/scala/tools/nsc/typechecker/Infer.scala @@ -159,6 +159,9 @@ trait Infer { if (!solve(tvars, tparams, variances, upper, depth)) { // no panic, it's good enough to just guess a solution, we'll find out // later whether it works. +// @M danger, Will Robinson! this means that you should never trust inferred type arguments! +// need to call checkBounds on the args/typars or type1 on the tree for the expression that results from type inference +// see e.g., #2421: implicit search had been ignoring this caveat // throw new DeferredNoInstance(() => // "no solution exists for constraints"+(tvars map boundsString)) } |