valid-compile.ts

import { createRule } from "../utils"
import type { Warning } from "../shared/svelte-compile-warns"
import { getSvelteCompileWarnings } from "../shared/svelte-compile-warns"

export default createRule("valid-compile", {
  meta: {
    docs: {
      description: "disallow warnings when compiling.",
      category: "Possible Errors",
      recommended: true,
    },
    schema: [
      {
        type: "object",
        properties: {
          ignoreWarnings: { type: "boolean" },
        },
        additionalProperties: false,
      },
    ],
    messages: {},
    type: "problem",
  },
  create(context) {
    if (!context.parserServices.isSvelte) {
      return {}
    }
    const ignoreWarnings = Boolean(context.options[0]?.ignoreWarnings)

    const ignores = ["missing-declaration", "dynamic-slot-name"]

    /**
     * report
     */
    function report(warnings: Warning[]) {
      for (const warn of warnings) {
        if (warn.code && ignores.includes(warn.code)) {
          continue
        }
        context.report({
          loc: {
            start: warn.start || warn.end || { line: 1, column: 0 },
            end: warn.end || warn.start || { line: 1, column: 0 },
          },
          message: `${warn.message}${warn.code ? `(${warn.code})` : ""}`,
        })
      }
    }

    return {
      "Program:exit"() {
        const result = getSvelteCompileWarnings(context)
        if (ignoreWarnings && result.kind === "warn") {
          return
        }
        report(result.warnings)
      },
    }
  },
})