macro_rules! yaml_vec_or_str { ($v:ident, $a:ident, $c:ident) => {{ let maybe_vec = $v.as_vec(); if let Some(vec) = maybe_vec { for ys in vec { if let Some(s) = ys.as_str() { $a = $a.$c(s); } else { panic!("Failed to convert YAML value {:?} to a string", ys); } } } else { if let Some(s) = $v.as_str() { $a = $a.$c(s); } else { panic!("Failed to convert YAML value {:?} to either a vec or string", $v); } } $a } }; } macro_rules! yaml_to_str { ($a:ident, $v:ident, $c:ident) => {{ $a.$c($v.as_str().unwrap_or_else(|| panic!("failed to convert YAML {:?} value to a string", $v))) }}; } macro_rules! yaml_to_bool { ($a:ident, $v:ident, $c:ident) => {{ $a.$c($v.as_bool().unwrap_or_else(|| panic!("failed to convert YAML {:?} value to a string", $v))) }}; } macro_rules! yaml_to_u64 { ($a:ident, $v:ident, $c:ident) => {{ $a.$c($v.as_i64().unwrap_or_else(|| panic!("failed to convert YAML {:?} value to a string", $v)) as u64) }}; } macro_rules! yaml_to_usize { ($a:ident, $v:ident, $c:ident) => {{ $a.$c($v.as_i64().unwrap_or_else(|| panic!("failed to convert YAML {:?} value to a string", $v)) as usize) }}; }