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report expression has no type other than has to be used (or discarded… (#20392)

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report expression has no type other than has to be used (or discarded) when typ is tyNone in discardCheck
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Bung 2022-09-20 20:50:48 +08:00 • committed by GitHub
commit 08c02f0236
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2 changed files with 9 additions and 0 deletions
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3
compiler/semstmts.nim
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@ -139,6 +139,9 @@ proc discardCheck(c: PContext, result: PNode, flags: TExprFlags) =
var n = newNodeI(nkDiscardStmt, result.info, 1) var n = newNodeI(nkDiscardStmt, result.info, 1)
n[0] = result n[0] = result
elif result.typ.kind != tyError and c.config.cmd != cmdInteractive: elif result.typ.kind != tyError and c.config.cmd != cmdInteractive:
if result.typ.kind == tyNone:
localError(c.config, result.info, "expression has no type: " &
renderTree(result, {renderNoComments}))
var n = result var n = result
while n.kind in skipForDiscardable: while n.kind in skipForDiscardable:
if n.kind == nkTryStmt: n = n[0] if n.kind == nkTryStmt: n = n[0]

6
tests/errmsgs/t8064.nim Normal file
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@ -0,0 +1,6 @@
discard """
errormsg: "expression has no type: values"
"""
import tables
values