Function genMap

packages/compiler-sfc/src/parse.ts:266–277

(block: SFCBlock | null, columnOffset = 0)

  if (sourceMap) {
    const genMap = (block: SFCBlock | null, columnOffset = 0) => {
      if (block && !block.src) {
        block.map = generateSourceMap(
          filename,
          source,
          block.content,
          sourceRoot,
          !pad || block.type === 'template' ? block.loc.start.line - 1 : 0,
          columnOffset,
        )
      }
    }
    genMap(descriptor.template, templateColumnOffset)
    genMap(descriptor.script)
    descriptor.styles.forEach(s => genMap(s))