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fixes #20715; range[a..b] inside object variant fails (#20716)

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* fixes #20715; range[a..b] inside object variant fails

* step one fix

* better fix

* fixes private fields

* mistake
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ringabout 2022-11-01 01:42:45 +08:00 • committed by GitHub
commit 39f925b95d
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2 changed files with 36 additions and 5 deletions
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compiler/sem.nim
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@ -599,15 +599,16 @@ proc defaultFieldsForTheUninitialized(c: PContext, recNode: PNode): seq[PNode] =
of nkRecCase:
let discriminator = recNode[0]
var selectedBranch: int
let defaultValue = discriminator.sym.ast
var defaultValue = discriminator.sym.ast
if defaultValue == nil:
# None of the branches were explicitly selected by the user and no value
# was given to the discrimator. We can assume that it will be initialized
# to zero and this will select a particular branch as a result:
selectedBranch = recNode.pickCaseBranchIndex newIntNode(nkIntLit#[c.graph]#, 0)
else: # Try to use default value
selectedBranch = recNode.pickCaseBranchIndex defaultValue
result.add newTree(nkExprColonExpr, discriminator, defaultValue)
defaultValue = newIntNode(nkIntLit#[c.graph]#, 0)
defaultValue.typ = discriminator.typ
selectedBranch = recNode.pickCaseBranchIndex defaultValue
defaultValue.flags.incl nfUseDefaultField
result.add newTree(nkExprColonExpr, discriminator, defaultValue)
result.add defaultFieldsForTheUninitialized(c, recNode[selectedBranch][^1])
of nkSym:
let field = recNode.sym