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| author | Jason Zaugg <jzaugg@gmail.com> | 2014-12-15 16:21:26 +1000 |
|---|---|---|
| committer | Adriaan Moors <adriaan.moors@typesafe.com> | 2015-02-02 15:25:41 -0800 |
| commit | 1970a8315ed3b2ff8877dfef2afcee936d59871b (patch) | |
| tree | 0519d7b80607af264c1f3afda59b2e1c4d772219 /test/files/neg/t9041.check | |
| parent | 5d7098c629bbb7cc0ab7e74c235bd4afca3de24e (diff) | |
| download | scala-1970a8315ed3b2ff8877dfef2afcee936d59871b.tar.gz scala-1970a8315ed3b2ff8877dfef2afcee936d59871b.tar.bz2 scala-1970a8315ed3b2ff8877dfef2afcee936d59871b.zip | |
SI-9041 Avoid unreported type error with overloading, implicits
If `qual.foo(args)` fails to typecheck, we fall back to
`ImplicitView(qual).foo(args)`. However, if the original type error
stemmed from an overload ambiguity, the tree `Select(qual, 'foo')`
holds onto an error symbol. The fall back attempt just returns an
`Apply` tree containing the erroneous qualifier, as it does not
want to issue cascading type errors.
This commit replaces the error symbol with a `NoSymbol`, which
triggers the second try typechecking to perform overload resolution
again.
A more principled fix might be to more pervasively duplicate trees
before mutating their types and symbols, that this is beyond the
scope of this bug fix.
Diffstat (limited to 'test/files/neg/t9041.check')
| -rw-r--r-- | test/files/neg/t9041.check | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/test/files/neg/t9041.check b/test/files/neg/t9041.check new file mode 100644 index 0000000000..669e9434e0 --- /dev/null +++ b/test/files/neg/t9041.check @@ -0,0 +1,4 @@ +t9041.scala:11: error: could not find implicit value for parameter cellSetter: CellSetter[scala.math.BigDecimal] + def setCell(cell: Cell, data: math.BigDecimal) { cell.setCellValue(data) } + ^ +one error found |