45 lines
1.4 KiB
Go
45 lines
1.4 KiB
Go
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package dynblock
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import (
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"github.com/hashicorp/hcl2/hcl"
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)
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// Expand "dynamic" blocks in the given body, returning a new body that
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// has those blocks expanded.
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//
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// The given EvalContext is used when evaluating "for_each" and "labels"
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// attributes within dynamic blocks, allowing those expressions access to
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// variables and functions beyond the iterator variable created by the
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// iteration.
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//
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// Expand returns no diagnostics because no blocks are actually expanded
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// until a call to Content or PartialContent on the returned body, which
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// will then expand only the blocks selected by the schema.
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//
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// "dynamic" blocks are also expanded automatically within nested blocks
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// in the given body, including within other dynamic blocks, thus allowing
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// multi-dimensional iteration. However, it is not possible to
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// dynamically-generate the "dynamic" blocks themselves except through nesting.
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//
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// parent {
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// dynamic "child" {
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// for_each = child_objs
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// content {
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// dynamic "grandchild" {
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// for_each = child.value.children
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// labels = [grandchild.key]
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// content {
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// parent_key = child.key
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// value = grandchild.value
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// }
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// }
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// }
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// }
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// }
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func Expand(body hcl.Body, ctx *hcl.EvalContext) hcl.Body {
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return &expandBody{
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original: body,
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forEachCtx: ctx,
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}
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}
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