51 lines
1.1 KiB
Go
51 lines
1.1 KiB
Go
package terraform
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import (
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"fmt"
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"github.com/hashicorp/hcl2/hcl"
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"github.com/hashicorp/terraform/addrs"
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"github.com/zclconf/go-cty/cty"
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)
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// EvalLocal is an EvalNode implementation that evaluates the
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// expression for a local value and writes it into a transient part of
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// the state.
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type EvalLocal struct {
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Addr addrs.LocalValue
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Expr hcl.Expression
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}
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func (n *EvalLocal) Eval(ctx EvalContext) (interface{}, error) {
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val, diags := ctx.EvaluateExpr(n.Expr, cty.DynamicPseudoType, nil)
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if diags.HasErrors() {
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return nil, diags.Err()
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}
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state := ctx.State()
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if state == nil {
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return nil, fmt.Errorf("cannot write local value to nil state")
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}
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state.SetLocalValue(n.Addr.Absolute(ctx.Path()), val)
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return nil, nil
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}
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// EvalDeleteLocal is an EvalNode implementation that deletes a Local value
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// from the state. Locals aren't persisted, but we don't need to evaluate them
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// during destroy.
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type EvalDeleteLocal struct {
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Addr addrs.LocalValue
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}
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func (n *EvalDeleteLocal) Eval(ctx EvalContext) (interface{}, error) {
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state := ctx.State()
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if state == nil {
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return nil, nil
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}
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state.RemoveLocalValue(n.Addr.Absolute(ctx.Path()))
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return nil, nil
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}
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