// Generated from makefn_gen.go.tmpl
package gojqex

import (
	"github.com/wader/fq/internal/mapstruct"
	"github.com/wader/gojq"
)
{{- $counts := map 0 "first" 1 "second" 2 "third"}}
{{- range $fn := slice (map "name" "Func" "type" "any" "field" "FuncFn") (map "name" "Iter" "type" "gojq.Iter" "field" "IterFn") }}
{{- range $args := xrange 0 4}}

	func {{$fn.name}}{{$args}}[Tenv any, Tc any{{range $i := xrange 0 $args}}, Ta{{$i}} any{{end}}](name string, fn func(e Tenv, c Tc{{range $i := xrange 0 $args}}, a{{$i}} Ta{{$i}}{{end}}) {{$fn.type}}) func(env Tenv) Function {
		return func(env Tenv) Function {
			f := Function{Name: name, MinArity: {{$args}}, MaxArity: {{$args}}}
			f.{{$fn.field}} = func(c any, a []any) {{$fn.type}} {
				cv, ok := CastFn[Tc](c, mapstruct.ToStruct)
				if !ok {
					{{- if eq $fn.name "Func"}}
						return FuncTypeError{Name: name, V: c}
					{{- else}}
						return gojq.NewIter(FuncTypeError{Name: name, V: c})
					{{- end}}
				}
				{{- range $i := xrange 0 $args}}
					a{{$i}}, ok := CastFn[Ta{{$i}}](a[{{$i}}], mapstruct.ToStruct)
					if !ok {
						{{- if eq $fn.name "Func"}}
							return FuncArgTypeError{Name: name, ArgName: "{{index $counts $i}}", V: a[{{$i}}]}
						{{- else}}
							return gojq.NewIter(FuncArgTypeError{Name: name, ArgName: "{{index $counts $i}}", V: a[{{$i}}]})
						{{- end}}
					}
				{{- end}}

				return fn(env, cv{{range $i := xrange 0 $args}}, a{{$i}}{{end}})
			}
			return f
		}
	}
{{- end}}
{{- end}}