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hcl.go
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hcl.go
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package parser
import (
"github.com/hashicorp/hcl/v2"
"github.com/hashicorp/hcl/v2/hclsyntax"
"github.com/zclconf/go-cty/cty"
)
func ToLiteral(expression hclsyntax.Expression) *string {
value, dialog := expression.Value(&hcl.EvalContext{})
if dialog != nil && dialog.HasErrors() {
return nil
}
if value.Type() == cty.String && !value.IsNull() && value.IsKnown() {
v := value.AsString()
return &v
}
return nil
}
func ToLiteralBoolean(expression hclsyntax.Expression) *bool {
value, dialog := expression.Value(&hcl.EvalContext{})
if dialog != nil && dialog.HasErrors() {
return nil
}
if value.Type() == cty.Bool && !value.IsNull() && value.IsKnown() {
v := value.True()
return &v
}
return nil
}
func BlockAtPos(body *hclsyntax.Body, pos hcl.Pos) *hclsyntax.Block {
for _, b := range body.Blocks {
if ContainsPos(b.Range(), pos) {
return b
}
}
return nil
}
func AttributeAtPos(block *hclsyntax.Block, pos hcl.Pos) *hclsyntax.Attribute {
if block == nil {
return nil
}
for _, attr := range block.Body.Attributes {
if ContainsPos(attr.SrcRange, pos) {
return attr
}
if ContainsPos(attr.Expr.Range(), pos) {
return attr
}
}
return nil
}
func AttributeWithName(block *hclsyntax.Block, name string) *hclsyntax.Attribute {
if block == nil {
return nil
}
for _, attr := range block.Body.Attributes {
if attr.Name == name {
return attr
}
}
return nil
}