| 1 | /** |
| 2 | * Shared utility helpers for the OpenAPI generator. |
| 3 | * |
| 4 | * This module centralizes the small transformations used while rendering |
| 5 | * generated TypeScript, including operation-name normalization, optional |
| 6 | * description handling, safe JSDoc comment emission, and direct array merging |
| 7 | * for code-generation accumulators. |
| 8 | * |
| 9 | * @since 4.0.0 |
| 10 | */ |
| 11 | import * as String from "effect/String" |
| 12 | import * as UndefinedOr from "effect/UndefinedOr" |
| 13 | |
| 14 | /** |
| 15 | * Converts an OpenAPI name into the generator's camel-case form. |
| 16 | * |
| 17 | * **Details** |
| 18 | * |
| 19 | * Separators are removed, leading digits are ignored, and letters following a |
| 20 | * separator or digit are upper-cased without otherwise changing letter casing. |
| 21 | * |
| 22 | * @category converting |
| 23 | * @since 4.0.0 |
| 24 | */ |
| 25 | export const camelize = (self: string): string => { |
| 26 | let str = "" |
| 27 | let hadSymbol = false |
| 28 | for (let i = 0; i < self.length; i++) { |
| 29 | const charCode = self.charCodeAt(i) |
| 30 | if ( |
| 31 | (charCode >= 65 && charCode <= 90) || |
| 32 | (charCode >= 97 && charCode <= 122) |
| 33 | ) { |
| 34 | str += hadSymbol ? self[i].toUpperCase() : self[i] |
| 35 | hadSymbol = false |
| 36 | } else if (charCode >= 48 && charCode <= 57) { |
| 37 | if (str.length > 0) { |
| 38 | str += self[i] |
| 39 | hadSymbol = true |
| 40 | } |
| 41 | } else if (str.length > 0) { |
| 42 | hadSymbol = true |
| 43 | } |
| 44 | } |
| 45 | return str |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * Converts an OpenAPI operation id into the exported operation identifier used |
| 50 | * by generated TypeScript modules. |
| 51 | * |
| 52 | * @category converting |
| 53 | * @since 4.0.0 |
| 54 | */ |
| 55 | export const identifier = (operationId: string) => String.capitalize(camelize(operationId)) |
| 56 | |
| 57 | /** |
| 58 | * Extracts a trimmed, non-empty string from an unknown value. |
| 59 | * |
| 60 | * **Details** |
| 61 | * |
| 62 | * Returns `undefined` for non-string values and for strings containing only |
| 63 | * whitespace. |
| 64 | * |
| 65 | * @category filtering |
| 66 | * @since 4.0.0 |
| 67 | */ |
| 68 | export const nonEmptyString = (a: unknown): string | undefined => { |
| 69 | if (typeof a === "string") { |
| 70 | const trimmed = String.trim(a) |
| 71 | if (String.isNonEmpty(trimmed)) { |
| 72 | return trimmed |
| 73 | } |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * Renders an optional description as a JSDoc block for generated TypeScript. |
| 79 | * |
| 80 | * **Details** |
| 81 | * |
| 82 | * Returns an empty string when the description is absent and escapes any |
| 83 | * closing comment marker so generated source remains syntactically valid. |
| 84 | * |
| 85 | * @category converting |
| 86 | * @since 4.0.0 |
| 87 | */ |
| 88 | export const toComment = UndefinedOr.match({ |
| 89 | onUndefined: () => "", |
| 90 | onDefined: (description: string) => |
| 91 | `/** |
| 92 | * ${description.replace(/\*\//g, " * /").split("\n").join("\n* ")} |
| 93 | */\n` |
| 94 | }) |
| 95 | |
| 96 | /** |
| 97 | * Appends every element from `source` into `destination` in order. |
| 98 | * |
| 99 | * **Details** |
| 100 | * |
| 101 | * This mutates `destination` directly, which avoids allocating an intermediate |
| 102 | * array when generator code needs to merge collections. |
| 103 | * |
| 104 | * @category mutations |
| 105 | * @since 4.0.0 |
| 106 | */ |
| 107 | export const spreadElementsInto = <A>(source: Array<A>, destination: Array<A>): void => { |
| 108 | for (let i = 0; i < source.length; i++) { |
| 109 | destination.push(source[i]) |
| 110 | } |
| 111 | } |