mochi/json

JSON serialization for Dynamic values.

The encoder converts Dynamic into the typed value tree in mochi/output once, then walks the tree. Errors propagate instead of getting silently swallowed as null.

Types

EncodeError

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pub type EncodeError =
  output.EncodeError

Values

describe_error

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pub fn describe_error(err: output.EncodeError) -> String

Human-readable description of an encode failure.

encode

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pub fn encode(
  value: dynamic.Dynamic,
) -> Result(String, output.EncodeError)

Encode a Dynamic value to a compact JSON string.

Returns an error when the value contains a runtime shape that can’t be represented in JSON (functions, tuples, pids, references, …) — instead of silently emitting null for it.

encode_pretty

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pub fn encode_pretty(
  value: dynamic.Dynamic,
  indent: Int,
) -> Result(String, output.EncodeError)

Encode a Dynamic value to a pretty-printed JSON string with the given indent width. Walks the value tree directly — does not re-parse JSON.