mirror of
https://github.com/luxfi/util.git
synced 2026-10-30 15:13:56 +00:00
zeekay
659563d801
Moves the JSON-RPC numeric wrappers (Uint8/16/32/64, Float32/64) and the gorilla/rpc lowercase Codec helper into the canonical luxfi/utils module. Replaces github.com/luxfi/codec/jsonrpc which has been retained only as a historical artefact of the codec module rip. All Lux modules that need JSON-RPC numeric quoting now have one canonical import: import "github.com/luxfi/utils/json" Identical API to codec/jsonrpc: Uint64.MarshalJSON quotes as decimal string, NewCodec returns a gorilla/rpc Codec that uppercases the first method letter.
30 lines
706 B
Go
30 lines
706 B
Go
// Copyright (C) 2019-2025, Lux Industries, Inc. All rights reserved.
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// See the file LICENSE for licensing terms.
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package json
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import "strconv"
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// Float32 is a float32 that marshals/unmarshals as a JSON string with 4 digit
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// fixed-point precision.
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type Float32 float32
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func (f Float32) MarshalJSON() ([]byte, error) {
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return []byte(`"` + strconv.FormatFloat(float64(f), 'f', 4, 32) + `"`), nil
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}
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func (f *Float32) UnmarshalJSON(b []byte) error {
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str := string(b)
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if str == Null {
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return nil
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}
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if len(str) >= 2 {
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if lastIndex := len(str) - 1; str[0] == '"' && str[lastIndex] == '"' {
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str = str[1:lastIndex]
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}
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}
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val, err := strconv.ParseFloat(str, 32)
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*f = Float32(val)
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return err
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}
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