ripr 0.8.0

Find static mutation-exposure gaps before expensive mutation testing
Documentation 
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use serde_json::Value;

pub(super) fn string_field(value: &Value, key: &str) -> Option<String> {
    value
        .get(key)
        .and_then(Value::as_str)
        .filter(|value| !value.trim().is_empty())
        .map(str::to_string)
}

pub(super) fn array_len(value: &Value, key: &str) -> Option<usize> {
    value.get(key).and_then(Value::as_array).map(Vec::len)
}