Font.ttf.location: def of gralha-truetype@0.1.0.1
Import: import gralha-truetype@0.1.0.1/font.bend as Font
Lines 145-152 of gralha-truetype@0.1.0.1/font.bend: https://jend.leeeet.dev/read.txt?path=gralha-truetype@0.1.0.1/font.bend&start_line=145&end_line=152

import Base
import gralha-text-scan@0.1.0.1/scan.bend as U
import gralha-bytes@0.1.0.1/bytes.bend as Bin

# Absolute offset of a glyph's data and its byte length (0 for empty or invalid glyphs).
def ttf.location(+b: Bin.Bytes, +f: TTFont, +gid: U32) -> U32 & U32:
  TTFont{glyf, loca, long, hmtx, metrics, glyphs, units} = f
  +lo = loca
  +lg = long
  +a = U.choose(U32, lg, ttf.u32(b, (lo + gid * 4 : U32)), (ttf.u16(b, (lo + gid * 2 : U32)) * 2 : U32))
  +c = U.choose(U32, lg, ttf.u32(b, (lo + gid * 4 + 4 : U32)), (ttf.u16(b, (lo + gid * 2 + 2 : U32)) * 2 : U32))
  ((glyf + a : U32), U.choose(U32, U32.is_lt(gid, glyphs) && U32.is_gt(c, a), (c - a : U32), 0))

Uses (14):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_gt
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_lt
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.mul
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.sub
  https://jend.leeeet.dev/definition.txt?path=gralha-bytes@0.1.0.1/bytes.bend&name=Bytes
  https://jend.leeeet.dev/definition.txt?path=gralha-text-scan@0.1.0.1/scan.bend&name=choose
  https://jend.leeeet.dev/definition.txt?path=gralha-truetype@0.1.0.1/font.bend&name=TTFont
  https://jend.leeeet.dev/definition.txt?path=gralha-truetype@0.1.0.1/font.bend&name=ttf.u16
  https://jend.leeeet.dev/definition.txt?path=gralha-truetype@0.1.0.1/font.bend&name=ttf.u32