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Generate Gleam code from OpenAPI 3.x specifications

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oaspec src oaspec internal openapi parser_yay_error.gleam
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src/oaspec/internal/openapi/parser_yay_error.gleam 

//// `yay` → diagnostic bridge. Turns extractor and selector failures

//// from the `yay` YAML library into the project's `Diagnostic` type

//// via the pure `parser_error.missing_field_with_hint` helper.

////

//// Split out of `parser_error` so the diagnostic-assembly logic itself

//// stays target-neutral and only the yay-specific detail extraction

//// carries the BEAM coupling.



import gleam/int

import oaspec/internal/openapi/parser_error

import oaspec/openapi/diagnostic.{type Diagnostic, type SourceLoc}

import yay



/// Build a `missing_field` diagnostic from a `yay.ExtractionError`,

/// folding the extractor-internal detail into the diagnostic's hint so

/// nothing is silently dropped.

pub fn missing_field_from_extraction(

  err: yay.ExtractionError,

  path path: String,

  field field: String,

  loc loc: SourceLoc,

) -> Diagnostic {

  parser_error.missing_field_with_hint(

    detail: yay.extraction_error_to_string(err),

    path:,

    field:,

    loc:,

  )

}



/// Build a `missing_field` diagnostic from a `yay.SelectorError`. The

/// selector error is collapsed to its constructor name since the

/// detail isn't meaningful to users, but we still thread it through

/// rather than discarding it outright.

pub fn missing_field_from_selector(

  err: yay.SelectorError,

  path path: String,

  field field: String,

  loc loc: SourceLoc,

) -> Diagnostic {

  let detail = case err {

    yay.NodeNotFound(at:) ->

      "selector resolved up to segment " <> int.to_string(at)

    yay.SelectorParseError -> "selector parse error"

  }

  parser_error.missing_field_with_hint(detail:, path:, field:, loc:)

}