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https://github.com/opentofu/opentofu.git
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39e609d5fd
Previously we were using the experimental HCL 2 repository, but now we'll shift over to the v2 import path within the main HCL repository as part of actually releasing HCL 2.0 as stable. This is a mechanical search/replace to the new import paths. It also switches to the v2.0.0 release of HCL, which includes some new code that Terraform didn't previously have but should not change any behavior that matters for Terraform's purposes. For the moment the experimental HCL2 repository is still an indirect dependency via terraform-config-inspect, so it remains in our go.sum and vendor directories for the moment. Because terraform-config-inspect uses a much smaller subset of the HCL2 functionality, this does still manage to prune the vendor directory a little. A subsequent release of terraform-config-inspect should allow us to completely remove that old repository in a future commit.
75 lines
1.9 KiB
Go
75 lines
1.9 KiB
Go
package terraform
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import (
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"fmt"
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"github.com/hashicorp/hcl/v2"
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"github.com/zclconf/go-cty/cty"
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"github.com/hashicorp/terraform/addrs"
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"github.com/hashicorp/terraform/lang"
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"github.com/hashicorp/terraform/tfdiags"
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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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var diags tfdiags.Diagnostics
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// We ignore diags here because any problems we might find will be found
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// again in EvaluateExpr below.
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refs, _ := lang.ReferencesInExpr(n.Expr)
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for _, ref := range refs {
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if ref.Subject == n.Addr {
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diags = diags.Append(&hcl.Diagnostic{
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Severity: hcl.DiagError,
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Summary: "Self-referencing local value",
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Detail: fmt.Sprintf("Local value %s cannot use its own result as part of its expression.", n.Addr),
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Subject: ref.SourceRange.ToHCL().Ptr(),
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Context: n.Expr.Range().Ptr(),
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})
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}
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}
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if diags.HasErrors() {
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return nil, diags.Err()
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}
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val, moreDiags := ctx.EvaluateExpr(n.Expr, cty.DynamicPseudoType, nil)
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diags = diags.Append(moreDiags)
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if moreDiags.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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