Function emitGoUnionWrapperStruct

scripts/codegen/go.ts:2838–2947

(typeName: string, schema: JSONSchema7, ctx: GoCodegenCtx)

}

function emitGoUnionWrapperStruct(typeName: string, schema: JSONSchema7, ctx: GoCodegenCtx): void {
    if (ctx.generatedNames.has(typeName)) return;
    ctx.generatedNames.add(typeName);

    const members = goNonNullUnionMembers(schema);
    const lines: string[] = [];
    if (schema.description) {
        pushGoCommentForContext(lines, schema.description, ctx);
    }
    if (isSchemaExperimental(schema)) {
        pushGoExperimentalTypeComment(lines, typeName, ctx);
    }
    if (isSchemaDeprecated(schema)) {
        pushGoCommentForContext(lines, `Deprecated: ${typeName} is deprecated and will be removed in a future version.`, ctx);
    }
    lines.push(`type ${typeName} struct {`);

    const emittedFields = new Set<string>();
    const fields: { name: string; type: string; member: JSONSchema7 }[] = [];
    for (const member of members) {
        const fieldNameBase = goUnionFieldName(member, ctx);
        let fieldName = fieldNameBase;
        let suffix = 2;
        while (emittedFields.has(fieldName)) {
            fieldName = `${fieldNameBase}${suffix++}`;
        }
        emittedFields.add(fieldName);
        const fieldType = goUnionFieldType(member, fieldName, typeName, ctx);
        fields.push({ name: fieldName, type: fieldType, member });
    }

    fields.sort((left, right) => compareGoFieldNames(left.name, right.name));
    for (const field of fields) {
        lines.push(`\t${field.name} ${field.type}`);
    }

    lines.push(`}`);
    const encodingLines: string[] = [];
    const matchFunctionsByField = new Map<string, string>();
    const objectVariantSchemas = fields.map((field) => ({
        field,
        schema: goObjectUnionMemberSchema(field.member, ctx),
    }));
    if (objectVariantSchemas.length > 1 && objectVariantSchemas.every((variant) => variant.schema !== undefined)) {
        const matchVariants: GoDiscriminatedUnionVariant[] = objectVariantSchemas.map(({ field, schema }) => ({
            schema: schema!,
            typeName: `${typeName}${field.name}`,
            discriminatorValues: [],
        }));
        for (const variant of matchVariants) {
            pushGoEncodingBlock(goVariantMatchFunctionLines(variant, matchVariants, "", ctx), ctx);
        }
        for (const [index, variant] of matchVariants.entries()) {
            matchFunctionsByField.set(objectVariantSchemas[index].field.name, goVariantMatchFuncName(variant.typeName));
        }
    }
    encodingLines.push(`func (r ${typeName}) MarshalJSON() ([]byte, error) {`);
    for (const field of fields) {