rulemorph 0.3.1

YAML-based declarative data transformation engine for CSV/JSON to JSON
Documentation 
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use super::*;

#[allow(clippy::too_many_arguments)]
pub(super) fn eval_coalesce_traced(
    args: &[Expr],
    injected: Option<&EvalValue>,
    record: &JsonValue,
    context: Option<&JsonValue>,
    out: &JsonValue,
    base_path: &str,
    locals: Option<&EvalLocals<'_>>,
    collector: &mut TraceCollector,
) -> Result<EvalValue, TransformError> {
    let total_len = args_len(args, injected);
    if total_len == 0 {
        return Err(TransformError::new(
            TransformErrorKind::ExprError,
            "expr.args must be a non-empty array",
        )
        .with_path(format!("{}.args", base_path)));
    }

    for index in 0..total_len {
        let arg_path = format!("{}.args[{}]", base_path, index);
        let value = eval_expr_at_index_traced(
            index, args, injected, record, context, out, base_path, locals, collector,
        )?;
        emit_arg_eval(collector, &arg_path, index, &value);
        match value {
            EvalValue::Missing => continue,
            EvalValue::Value(value) => {
                if value.is_null() {
                    continue;
                }
                return Ok(EvalValue::Value(value));
            }
        }
    }
    Ok(EvalValue::Missing)
}

#[allow(clippy::too_many_arguments)]
pub(super) fn eval_bool_and_or_traced(
    args: &[Expr],
    injected: Option<&EvalValue>,
    record: &JsonValue,
    context: Option<&JsonValue>,
    out: &JsonValue,
    base_path: &str,
    is_and: bool,
    locals: Option<&EvalLocals<'_>>,
    collector: &mut TraceCollector,
) -> Result<EvalValue, TransformError> {
    let total_len = args_len(args, injected);
    if total_len < 2 {
        return Err(TransformError::new(
            TransformErrorKind::ExprError,
            "expr.args must contain at least two items",
        )
        .with_path(format!("{}.args", base_path)));
    }

    let mut saw_missing = false;
    for index in 0..total_len {
        let arg_path = format!("{}.args[{}]", base_path, index);
        let value = eval_expr_at_index_traced(
            index, args, injected, record, context, out, base_path, locals, collector,
        )?;
        emit_arg_eval(collector, &arg_path, index, &value);
        match value {
            EvalValue::Missing => {
                saw_missing = true;
                continue;
            }
            EvalValue::Value(value) => {
                let flag = value_as_bool(&value, &arg_path)?;
                if is_and {
                    if !flag {
                        return Ok(EvalValue::Value(JsonValue::Bool(false)));
                    }
                } else if flag {
                    return Ok(EvalValue::Value(JsonValue::Bool(true)));
                }
            }
        }
    }

    if saw_missing {
        Ok(EvalValue::Missing)
    } else {
        Ok(EvalValue::Value(JsonValue::Bool(is_and)))
    }
}