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798adf3ce6
An earlier commit today reworked this to handle non-fatal errors, which are returned "smuggled" as a special type of error to avoid changing the EvalNode interface. Unfortunately, that change then broke the _other_ special thing we smuggle through the error return path: early exit. Now we'll handle them both. This is not perfect because the early-exit path causes us to discard any warnings we've already collected, but it's more important that we bail early than retain warnings.
43 lines
888 B
Go
43 lines
888 B
Go
package terraform
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import (
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"github.com/hashicorp/terraform/tfdiags"
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)
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// EvalSequence is an EvalNode that evaluates in sequence.
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type EvalSequence struct {
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Nodes []EvalNode
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}
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func (n *EvalSequence) Eval(ctx EvalContext) (interface{}, error) {
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var diags tfdiags.Diagnostics
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for _, n := range n.Nodes {
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if n == nil {
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continue
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}
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if _, err := EvalRaw(n, ctx); err != nil {
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if _, isEarlyExit := err.(EvalEarlyExitError); isEarlyExit {
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// In this path we abort early, losing any non-error
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// diagnostics we saw earlier.
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return nil, err
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}
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diags = diags.Append(err)
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if diags.HasErrors() {
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// Halt if we get some errors, but warnings are okay.
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break
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}
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}
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}
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return nil, diags.ErrWithWarnings()
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}
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// EvalNodeFilterable impl.
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func (n *EvalSequence) Filter(fn EvalNodeFilterFunc) {
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for i, node := range n.Nodes {
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n.Nodes[i] = fn(node)
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}
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}
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