hclsyntax: address multiple issues with sequences (...) #386
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Previously functions such as concat() would result in a panic if there was a null element and a sequence, as in the included test. This PR adds a check if the error index is outside of the range of arguments and crafts an error that references the entire function instead of the null argument.
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hashicorp/terraform#24910 is the reference for the second commit, which addresses the following error with Previous error (as shown by the test added in this comment): New result: no errors, returns |
jbardin
reviewed
Jun 3, 2020
| @@ -260,6 +260,8 @@ func (e *FunctionCallExpr) Value(ctx *hcl.EvalContext) (cty.Value, hcl.Diagnosti | |||
| } | |||
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| switch { | |||
| case expandVal.Type().Equals(cty.DynamicPseudoType): | |||
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If passing null as the first argument isn't valid, we should have the same null check here as below. Otherwise we have a known value turning into an unknown value.
mildwonkey
changed the title
jbardin
approved these changes
Jun 3, 2020
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Update: I ended up tackling two adjacent bugs at once.
Previously functions such as
concat()would result in a panic if therewas a null element and a sequence, as in the included test. This PR adds
a check if the error index is outside of the range of arguments and
crafts an error that references the entire function instead of the null
argument.
Tested locally to confirm that this fixes a reported terraform panic:
