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fix for bad error message with const in case statement (#21182)

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* preliminary fix for bad error message with const

* add test case

* fix tmatrixconcept and tmatrixlib
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metagn 2022-12-27 23:24:00 +03:00 • committed by GitHub
commit 5684093135
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2 changed files with 11 additions and 0 deletions
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4
compiler/semfold.nim
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@ -569,6 +569,8 @@ proc foldDefine(m, s: PSym, n: PNode; idgen: IdGenerator; g: ModuleGraph): PNode
else: result = copyTree(s.astdef) # unreachable
else:
result = copyTree(s.astdef)
if result != nil:
result.info = n.info
proc getConstExpr(m: PSym, n: PNode; idgen: IdGenerator; g: ModuleGraph): PNode =
result = nil
@ -593,6 +595,8 @@ proc getConstExpr(m: PSym, n: PNode; idgen: IdGenerator; g: ModuleGraph): PNode
result = foldDefine(m, s, n, idgen, g)
else:
result = copyTree(s.astdef)
if result != nil:
result.info = n.info
of skProc, skFunc, skMethod:
result = n
of skParam:

7
tests/errmsgs/tconstinfo.nim Normal file
View file

@ -0,0 +1,7 @@
# https://forum.nim-lang.org/t/9762
const foo = "abc"
case 'a'
of foo: echo "should error" #[tt.Error
^ type mismatch: got <string> but expected 'char']#
else: discard