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package hcl
import (
"github.com/zclconf/go-cty/cty"
"github.com/zclconf/go-cty/cty/function"
)
// An EvalContext provides the variables and functions that should be used
// to evaluate an expression.
type EvalContext struct {
Variables map[string]cty.Value
Functions map[string]function.Function
parent *EvalContext
}
// NewChild returns a new EvalContext that is a child of the receiver.
func (ctx *EvalContext) NewChild() *EvalContext {
return &EvalContext{parent: ctx}
}
// Parent returns the parent of the receiver, or nil if the receiver has
// no parent.
func (ctx *EvalContext) Parent() *EvalContext {
return ctx.parent
}
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