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lang: core: fmt: Allow type unification variables for format

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This allows some simple cases.
This commit is contained in:
James Shubin
2024-08-21 19:00:25 -04:00
parent da4f69cd87
commit 82cac572ca
1 changed files with 2 additions and 2 deletions
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4
lang/core/fmt/printf_func.go
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@@ -124,7 +124,7 @@ func (obj *PrintfFunc) FuncInfer(partialType *types.Type, partialValues []types.
// programming error?
return nil, nil, fmt.Errorf("must have at least one arg")
}
if typ := partialType.Map[partialType.Ord[0]]; typ != nil && typ.Cmp(types.TypeStr) != nil {
if typ := partialType.Map[partialType.Ord[0]]; typ != nil && typ.Cmp(types.TypeStr) != nil && !typ.HasUni() {
return nil, nil, fmt.Errorf("format string was a %s", typ)
}
@@ -193,7 +193,7 @@ func (obj *PrintfFunc) FuncInfer(partialType *types.Type, partialValues []types.
}
// Check the format string is consistent with what we've found earlier!
if i := 0; typList[i] != nil && typList[i].Cmp(types.TypeStr) != nil {
if i := 0; typList[i] != nil && typList[i].Cmp(types.TypeStr) != nil && !typList[i].HasUni() {
return nil, nil, fmt.Errorf("inconsistent type at arg index %d (format string)", i)
}
typList[0] = types.TypeStr // format string (zeroth arg)