89 lines
1.9 KiB
Odin
89 lines
1.9 KiB
Odin
package mustache
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import "base:runtime"
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import "core:reflect"
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import "core:strconv"
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import "core:strings"
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import "core:log"
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decode :: proc( v: any, key: string ) -> string {
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if v == nil do return ""
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ti := runtime.type_info_base(type_info_of(v.id))
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a := any{v.data, ti.id}
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#partial switch info in ti.variant {
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case runtime.Type_Info_Struct:
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newkey, err := strings.split_after_n(key, ".", 2)
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if len(newkey) != 2 || err != nil {
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return decode( reflect.struct_field_value_by_name(v, key), "." )
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}
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return decode( reflect.struct_field_value_by_name(v, newkey[0][:len(newkey[0])-1]), newkey[1] )
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case runtime.Type_Info_String:
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if key != "." do return ""
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switch t in a {
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case string:
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return t
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case cstring:
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return string(t)
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}
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case runtime.Type_Info_Integer:
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if key != "." do return ""
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buf: [40]byte
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u := cast_any_int_to_u128(a)
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return strconv.append_bits_128(buf[:], u, 10, info.signed, 8*ti.size, "0123456789", nil)
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case runtime.Type_Info_Enum:
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return decode(any{v.data, info.base.id}, key)
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}
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return ""
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}
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// Stealed from core:endoding/json
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@(private)
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cast_any_int_to_u128 :: proc(any_int_value: any) -> u128 {
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u: u128 = 0
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switch i in any_int_value {
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case i8: u = u128(i)
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case i16: u = u128(i)
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case i32: u = u128(i)
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case i64: u = u128(i)
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case i128: u = u128(i)
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case int: u = u128(i)
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case u8: u = u128(i)
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case u16: u = u128(i)
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case u32: u = u128(i)
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case u64: u = u128(i)
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case u128: u = u128(i)
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case uint: u = u128(i)
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case uintptr: u = u128(i)
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case i16le: u = u128(i)
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case i32le: u = u128(i)
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case i64le: u = u128(i)
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case u16le: u = u128(i)
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case u32le: u = u128(i)
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case u64le: u = u128(i)
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case u128le: u = u128(i)
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case i16be: u = u128(i)
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case i32be: u = u128(i)
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case i64be: u = u128(i)
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case u16be: u = u128(i)
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case u32be: u = u128(i)
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case u64be: u = u128(i)
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case u128be: u = u128(i)
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}
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return u;
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}
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