diff options
| author | Robert Griesemer <gri@golang.org> | 2023-05-04 17:01:53 -0700 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2023-05-05 19:07:50 +0000 |
| commit | 26899ef3ee7cd3d9e663e6f792c93bb411c863db (patch) | |
| tree | 60df2b4777e48e32c4eb3bf78e8d85dd334d8f9c /src/cmd | |
| parent | a5350558e6e2db16bfe09f2ba8104549c6598c46 (diff) | |
| download | go-26899ef3ee7cd3d9e663e6f792c93bb411c863db.tar.xz | |
go/types, types2: better error message for bad assignment
If the LHS of an assignment is neither addressable nor a map expression
(and not the blank identifier), explicitly say so for a better error
message.
For #3117.
Change-Id: I4bffc35574fe390a0567e89182b23585eb5a90de
Reviewed-on: https://go-review.googlesource.com/c/go/+/492875
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Diffstat (limited to 'src/cmd')
| -rw-r--r-- | src/cmd/compile/internal/types2/assignments.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cmd/compile/internal/types2/assignments.go b/src/cmd/compile/internal/types2/assignments.go index 15d2a89934..cba102e4f4 100644 --- a/src/cmd/compile/internal/types2/assignments.go +++ b/src/cmd/compile/internal/types2/assignments.go @@ -222,7 +222,7 @@ func (check *Checker) lhsVar(lhs syntax.Expr) Type { return Typ[Invalid] } } - check.errorf(&x, UnassignableOperand, "cannot assign to %s", &x) + check.errorf(&x, UnassignableOperand, "cannot assign to %s (neither addressable nor a map index expression)", x.expr) return Typ[Invalid] } |