37 lines
920 B
Go
37 lines
920 B
Go
package hcldec
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import (
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"github.com/hashicorp/hcl/v2"
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)
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// ImpliedSchema returns the *hcl.BodySchema implied by the given specification.
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// This is the schema that the Decode function will use internally to
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// access the content of a given body.
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func ImpliedSchema(spec Spec) *hcl.BodySchema {
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var attrs []hcl.AttributeSchema
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var blocks []hcl.BlockHeaderSchema
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// visitSameBodyChildren walks through the spec structure, calling
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// the given callback for each descendent spec encountered. We are
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// interested in the specs that reference attributes and blocks.
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var visit visitFunc
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visit = func(s Spec) {
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if as, ok := s.(attrSpec); ok {
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attrs = append(attrs, as.attrSchemata()...)
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}
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if bs, ok := s.(blockSpec); ok {
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blocks = append(blocks, bs.blockHeaderSchemata()...)
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}
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s.visitSameBodyChildren(visit)
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}
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visit(spec)
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return &hcl.BodySchema{
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Attributes: attrs,
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Blocks: blocks,
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}
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}
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