Function oncomment

packages/compiler-core/src/parser.ts:412–420

(start, end)

  },

  oncomment(start, end) {
    if (currentOptions.comments) {
      addNode({
        type: NodeTypes.COMMENT,
        content: getSlice(start, end),
        loc: getLoc(start - 4, end + 3),
      })
    }
  },

  onend() {
    const end = currentInput.length