Function shapeWithTrace

shapeWithTrace(
    font: Font,
    buffer: Buffer,
    features: string,
    stop_at: number,
    stop_phase: TracePhase,
): TraceEntry[]
Shape a buffer with a given font, returning a JSON trace of the shaping process.

This function supports "partial shaping", where the shaping process is terminated after a given lookup ID is reached.
Parameters
- font: Font
  The Font to shape with.
- buffer: Buffer
  The Buffer containing text to shape, suitably prepared.
- features: string
  A string of comma-separated OpenType features to apply.
- stop_at: number
  A lookup ID at which to terminate shaping.
- stop_phase: TracePhase
  The TracePhase at which to stop shaping.
Returns TraceEntry[]
An array of trace entries, each with a message, serialized glyphs, and phase info.
- Defined in src/shape.ts:73