@typespec/openapi3/dist/src/status-codes.js

TypeSpec library for emitting OpenAPI 3.0 and OpenAPI 3.1 from the TypeSpec REST protocol binding and converting OpenAPI3 to TypeSpec

import { isDefaultResponse } from "@typespec/openapi";
import { createDiagnostic } from "./lib.js";
export function getOpenAPI3StatusCodes(program, statusCodes, response) {
    if (isDefaultResponse(program, response) || statusCodes === "*") {
        return [["default"], []];
    }
    else if (typeof statusCodes === "number") {
        return [[String(statusCodes)], []];
    }
    else {
        return rangeToOpenAPI(statusCodes, response);
    }
}
function rangeToOpenAPI(range, diagnosticTarget) {
    const diagnostics = [];
    const reportInvalid = () => diagnostics.push(createDiagnostic({
        code: "unsupported-status-code-range",
        format: { start: String(range.start), end: String(range.end) },
        target: diagnosticTarget,
    }));
    const codes = [];
    let start = range.start;
    let end = range.end;
    if (range.start < 100) {
        reportInvalid();
        start = 100;
        codes.push("default");
    }
    else if (range.end > 599) {
        reportInvalid();
        codes.push("default");
        end = 599;
    }
    const groups = [1, 2, 3, 4, 5];
    for (const group of groups) {
        if (start > end) {
            break;
        }
        const groupStart = group * 100;
        const groupEnd = groupStart + 99;
        if (start >= groupStart && start <= groupEnd) {
            codes.push(`${group}XX`);
            if (start !== groupStart || end < groupEnd) {
                reportInvalid();
            }
            start = groupStart + 100;
        }
    }
    return [codes, diagnostics];
}
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