use crate::{decoders::BoxDecoder, DecodeError, Decoder};
macro_rules! define_map_decoder {
($fn_name:ident, $struct_name:ident, $($i:ident),+) => {
#[allow(clippy::too_many_arguments)]
pub fn $fn_name<'a, F, $($i,)+ NewDecodesTo>(
func: F,
$($i: BoxDecoder<'a, $i>,)+
) -> BoxDecoder<'a, NewDecodesTo>
where F: Fn($($i, )+) -> NewDecodesTo + 'a + Send + Sync,
NewDecodesTo: 'a,
$($i: 'a,)+
{
Box::new($struct_name {
func: Box::new(func),
decoders: (($($i, )+))
})
}
struct $struct_name<'a, DecodesTo, $($i,)+> {
func: Box<dyn Fn($($i,)+) -> DecodesTo + 'a + Send + Sync>,
decoders: ($(BoxDecoder<'a, $i>,)+ )
}
impl<'a, DecodesTo, $($i,)+> Decoder<'a, DecodesTo>
for $struct_name<'a, DecodesTo, $($i,)+> {
fn decode(&self, value: &serde_json::Value) -> Result<DecodesTo, DecodeError> {
let ($($i, )+) = &self.decoders;
$(
let $i = (*$i).decode(value)?;
)+
let result = (*self.func)($($i, )+);
Ok(result)
}
}
}
}
define_map_decoder!(map2, Fn2Decoder, _1, _2);
define_map_decoder!(map3, Fn3Decoder, _1, _2, _3);
define_map_decoder!(map4, Fn4Decoder, _1, _2, _3, _4);
define_map_decoder!(map5, Fn5Decoder, _1, _2, _3, _4, _5);
define_map_decoder!(map6, Fn6Decoder, _1, _2, _3, _4, _5, _6);
define_map_decoder!(map7, Fn7Decoder, _1, _2, _3, _4, _5, _6, _7);
define_map_decoder!(map8, Fn8Decoder, _1, _2, _3, _4, _5, _6, _7, _8);
define_map_decoder!(map9, Fn9Decoder, _1, _2, _3, _4, _5, _6, _7, _8, _9);
define_map_decoder!(map10, Fn10Decoder, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10);
define_map_decoder!(
map11,
Fn11Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11
);
define_map_decoder!(
map12,
Fn12Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12
);
define_map_decoder!(
map13,
Fn13Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13
);
define_map_decoder!(
map14,
Fn14Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14
);
define_map_decoder!(
map15,
Fn15Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15
);
define_map_decoder!(
map16,
Fn16Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16
);
define_map_decoder!(
map17,
Fn17Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17
);
define_map_decoder!(
map18,
Fn18Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18
);
define_map_decoder!(
map19,
Fn19Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19
);
define_map_decoder!(
map20,
Fn20Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20
);
define_map_decoder!(
map21,
Fn21Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21
);
define_map_decoder!(
map22,
Fn22Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22
);
define_map_decoder!(
map23,
Fn23Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23
);
define_map_decoder!(
map24,
Fn24Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24
);
define_map_decoder!(
map25,
Fn25Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25
);
define_map_decoder!(
map26,
Fn26Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26
);
define_map_decoder!(
map27,
Fn27Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27
);
define_map_decoder!(
map28,
Fn28Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28
);
define_map_decoder!(
map29,
Fn29Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29
);
define_map_decoder!(
map30,
Fn30Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30
);
define_map_decoder!(
map31,
Fn31Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31
);
define_map_decoder!(
map32,
Fn32Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32
);
define_map_decoder!(
map33,
Fn33Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32,
_33
);
define_map_decoder!(
map34,
Fn34Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32,
_33,
_34
);
define_map_decoder!(
map35,
Fn35Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32,
_33,
_34,
_35
);
define_map_decoder!(
map36,
Fn36Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32,
_33,
_34,
_35,
_36
);
define_map_decoder!(
map37,
Fn37Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32,
_33,
_34,
_35,
_36,
_37
);
define_map_decoder!(
map38,
Fn38Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32,
_33,
_34,
_35,
_36,
_37,
_38
);
define_map_decoder!(
map39,
Fn39Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32,
_33,
_34,
_35,
_36,
_37,
_38,
_39
);
define_map_decoder!(
map40,
Fn40Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32,
_33,
_34,
_35,
_36,
_37,
_38,
_39,
_40
);
define_map_decoder!(
map41,
Fn41Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32,
_33,
_34,
_35,
_36,
_37,
_38,
_39,
_40,
_41
);
define_map_decoder!(
map42,
Fn42Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32,
_33,
_34,
_35,
_36,
_37,
_38,
_39,
_40,
_41,
_42
);
define_map_decoder!(
map43,
Fn43Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32,
_33,
_34,
_35,
_36,
_37,
_38,
_39,
_40,
_41,
_42,
_43
);
define_map_decoder!(
map44,
Fn44Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32,
_33,
_34,
_35,
_36,
_37,
_38,
_39,
_40,
_41,
_42,
_43,
_44
);
define_map_decoder!(
map45,
Fn45Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32,
_33,
_34,
_35,
_36,
_37,
_38,
_39,
_40,
_41,
_42,
_43,
_44,
_45
);
define_map_decoder!(
map46,
Fn46Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32,
_33,
_34,
_35,
_36,
_37,
_38,
_39,
_40,
_41,
_42,
_43,
_44,
_45,
_46
);
define_map_decoder!(
map47,
Fn47Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32,
_33,
_34,
_35,
_36,
_37,
_38,
_39,
_40,
_41,
_42,
_43,
_44,
_45,
_46,
_47
);
define_map_decoder!(
map48,
Fn48Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32,
_33,
_34,
_35,
_36,
_37,
_38,
_39,
_40,
_41,
_42,
_43,
_44,
_45,
_46,
_47,
_48
);
define_map_decoder!(
map49,
Fn49Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32,
_33,
_34,
_35,
_36,
_37,
_38,
_39,
_40,
_41,
_42,
_43,
_44,
_45,
_46,
_47,
_48,
_49
);
define_map_decoder!(
map50,
Fn50Decoder,
_1,
_2,
_3,
_4,
_5,
_6,
_7,
_8,
_9,
_10,
_11,
_12,
_13,
_14,
_15,
_16,
_17,
_18,
_19,
_20,
_21,
_22,
_23,
_24,
_25,
_26,
_27,
_28,
_29,
_30,
_31,
_32,
_33,
_34,
_35,
_36,
_37,
_38,
_39,
_40,
_41,
_42,
_43,
_44,
_45,
_46,
_47,
_48,
_49,
_50
);