Function from_reader

pub fn from_reader<T, R>(reader: R) -> Result<T>
where
    T: DeserializeOwned,
    R: Read,

Deserialize an instance of type T from an IO stream of HCL.

See the documentation of from_str for more information.

Example

use hcl::Value;

let input = r#"
    some_attr = {
      foo = [1, 2]
      bar = true
    }

    some_block "some_block_label" {
      attr = "value"
    }
"#;

let expected = hcl::value!({
    some_attr = {
        foo = [1, 2]
        bar = true
    }
    some_block = {
        some_block_label = {
            attr = "value"
        }
    }
});

let value: Value = hcl::from_reader(input.as_bytes())?;

assert_eq!(value, expected);

Errors

This functions fails with an error if reading from the reader fails or if the data does not match the structure of T.