47 lines
1.3 KiB
JavaScript
47 lines
1.3 KiB
JavaScript
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import { ClientError, ClosedError, MisuseError } from "./errors.js";
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/** Text of an SQL statement cached on the server. */
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export class Sql {
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#owner;
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#sqlId;
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#closed;
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/** @private */
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constructor(owner, sqlId) {
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this.#owner = owner;
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this.#sqlId = sqlId;
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this.#closed = undefined;
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}
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/** @private */
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_getSqlId(owner) {
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if (this.#owner !== owner) {
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throw new MisuseError("Attempted to use SQL text opened with other object");
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}
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else if (this.#closed !== undefined) {
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throw new ClosedError("SQL text is closed", this.#closed);
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}
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return this.#sqlId;
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}
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/** Remove the SQL text from the server, releasing resouces. */
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close() {
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this._setClosed(new ClientError("SQL text was manually closed"));
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}
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/** @private */
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_setClosed(error) {
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if (this.#closed === undefined) {
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this.#closed = error;
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this.#owner._closeSql(this.#sqlId);
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}
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}
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/** True if the SQL text is closed (removed from the server). */
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get closed() {
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return this.#closed !== undefined;
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}
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}
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export function sqlToProto(owner, sql) {
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if (sql instanceof Sql) {
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return { sqlId: sql._getSqlId(owner) };
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}
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else {
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return { sql: "" + sql };
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}
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}
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