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node_root_variable.go
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/
node_root_variable.go
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package terraform
import (
"github.com/hashicorp/terraform/addrs"
"github.com/hashicorp/terraform/configs"
"github.com/hashicorp/terraform/dag"
"github.com/hashicorp/terraform/tfdiags"
)
// NodeRootVariable represents a root variable input.
type NodeRootVariable struct {
Addr addrs.InputVariable
Config *configs.Variable
}
var (
_ GraphNodeModuleInstance = (*NodeRootVariable)(nil)
_ GraphNodeReferenceable = (*NodeRootVariable)(nil)
)
func (n *NodeRootVariable) Name() string {
return n.Addr.String()
}
// GraphNodeModuleInstance
func (n *NodeRootVariable) Path() addrs.ModuleInstance {
return addrs.RootModuleInstance
}
func (n *NodeRootVariable) ModulePath() addrs.Module {
return addrs.RootModule
}
// GraphNodeReferenceable
func (n *NodeRootVariable) ReferenceableAddrs() []addrs.Referenceable {
return []addrs.Referenceable{n.Addr}
}
// GraphNodeExecutable
func (n *NodeRootVariable) Execute(ctx EvalContext, op walkOperation) tfdiags.Diagnostics {
// We don't actually need to _evaluate_ a root module variable, because
// its value is always constant and already stashed away in our EvalContext.
// However, we might need to run some user-defined validation rules against
// the value.
if n.Config == nil || len(n.Config.Validations) == 0 {
return nil // nothing to do
}
return evalVariableValidations(
addrs.RootModuleInstance.InputVariable(n.Addr.Name),
n.Config,
nil, // not set for root module variables
ctx,
)
}
// dag.GraphNodeDotter impl.
func (n *NodeRootVariable) DotNode(name string, opts *dag.DotOpts) *dag.DotNode {
return &dag.DotNode{
Name: name,
Attrs: map[string]string{
"label": n.Name(),
"shape": "note",
},
}
}