terraform/config/interpolate_funcs.go

55 lines
1.5 KiB
Go

package config
import (
"fmt"
"github.com/hashicorp/hil/ast"
)
// stringSliceToVariableValue converts a string slice into the value
// required to be returned from interpolation functions which return
// TypeList.
func stringSliceToVariableValue(values []string) []ast.Variable {
output := make([]ast.Variable, len(values))
for index, value := range values {
output[index] = ast.Variable{
Type: ast.TypeString,
Value: value,
}
}
return output
}
// listVariableSliceToVariableValue converts a list of lists into the value
// required to be returned from interpolation functions which return TypeList.
func listVariableSliceToVariableValue(values [][]ast.Variable) []ast.Variable {
output := make([]ast.Variable, len(values))
for index, value := range values {
output[index] = ast.Variable{
Type: ast.TypeList,
Value: value,
}
}
return output
}
func listVariableValueToStringSlice(values []ast.Variable) ([]string, error) {
output := make([]string, len(values))
for index, value := range values {
if value.Type != ast.TypeString {
return []string{}, fmt.Errorf("list has non-string element (%T)", value.Type.String())
}
output[index] = value.Value.(string)
}
return output, nil
}
// Funcs used to return a mapping of built-in functions for configuration.
//
// However, these function implementations are no longer used. To find the
// current function implementations, refer to ../lang/functions.go instead.
func Funcs() map[string]ast.Function {
return nil
}