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common/collections: Allow a mix of slice types in append/Scratch.Add

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The type handling in these was improved in Hugo 0.49, but this also meant that it was no longer possible to start out with a string slice and later append `Page` etc. to it.

This commit makes sure that the old behaviour is now possible again by falling back to a `[]interface{}` as a last resort.

Fixes #5361
This commit is contained in:
Bjørn Erik Pedersen
2018-10-27 11:10:39 +02:00
parent b27ccf34bf
commit dac7092a9c
3 changed files with 51 additions and 4 deletions
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8
common/collections/append_test.go
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@@ -46,10 +46,12 @@ func TestAppend(t *testing.T) {
{testSlicerInterfaces{&tstSlicerIn1{"a"}, &tstSlicerIn1{"b"}},
[]interface{}{&tstSlicerIn1{"c"}},
testSlicerInterfaces{&tstSlicerIn1{"a"}, &tstSlicerIn1{"b"}, &tstSlicerIn1{"c"}}},
//https://github.com/gohugoio/hugo/issues/5361
{[]string{"a", "b"}, []interface{}{tstSlicers{&tstSlicer{"a"}, &tstSlicer{"b"}}},
[]interface{}{"a", "b", &tstSlicer{"a"}, &tstSlicer{"b"}}},
{[]string{"a", "b"}, []interface{}{&tstSlicer{"a"}},
[]interface{}{"a", "b", &tstSlicer{"a"}}},
// Errors
{testSlicerInterfaces{&tstSlicerIn1{"a"}, &tstSlicerIn1{"b"}},
[]interface{}{"c"},
false},
{"", []interface{}{[]string{"a", "b"}}, false},
// No string concatenation.
{"ab",