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import { WorkItem } from './models/WorkItem';
export class TeaQLNotLoadedError extends Error {
readonly details: Record<string, unknown>;
constructor(
readonly root: string,
readonly accessPath: string,
readonly breakPoint: string,
) {
const suggestedFix = `select${breakPoint.charAt(0).toUpperCase()}${breakPoint.slice(1)}(...)`;
const details = {
error: 'TeaQLNotLoadedError',
root,
accessPath: accessPath.split('.'),
breakPoint,
missingPreload: [breakPoint],
suggestedFix,
severity: 'error',
humanMessage: `访问 ${root}.${accessPath} 时缺少预加载。请在查询中加入 ${suggestedFix}`,
};
super(JSON.stringify(details));
this.name = 'TeaQLNotLoadedError';
this.details = details;
}
}
function expressionPath(prefix: string, field: string): string {
return prefix ? `${prefix}.${field}` : field;
}
export class ValueExpression<T> {
constructor(
private readonly value: T | null | undefined,
private readonly present = true,
private readonly notLoaded?: TeaQLNotLoadedError,
) {}
static missing<T>(): ValueExpression<T> {
return new ValueExpression<T>(undefined, false);
}
static notLoaded<T>(error: TeaQLNotLoadedError): ValueExpression<T> {
return new ValueExpression<T>(undefined, false, error);
}
eval(): T | null | undefined {
if (this.notLoaded) throw this.notLoaded;
return this.present ? this.value : undefined;
}
isPresent(): boolean {
if (this.notLoaded) throw this.notLoaded;
return this.present;
}
orElse(fallback: T): T {
const value = this.eval();
return this.present && value != null ? value : fallback;
}
}
export class PlatformExpression {
constructor(
private readonly value: Platform | null | undefined,
private readonly root = 'Platform(null)',
private readonly path = '',
private readonly notLoaded?: TeaQLNotLoadedError,
) {}
eval(): Platform | null | undefined {
if (this.notLoaded) throw this.notLoaded;
return this.value;
}
id(): ValueExpression<string> {
if (this.notLoaded) return ValueExpression.notLoaded<string>(this.notLoaded);
if (!this.value) return ValueExpression.missing<string>();
const path = expressionPath(this.path, 'id');
if (!this.value.isLoaded('id')) {
return ValueExpression.notLoaded<string>(
new TeaQLNotLoadedError(this.root, path, 'id'),
);
}
return new ValueExpression<string>(this.value.id);
}
name(): ValueExpression<string> {
if (this.notLoaded) return ValueExpression.notLoaded<string>(this.notLoaded);
if (!this.value) return ValueExpression.missing<string>();
const path = expressionPath(this.path, 'name');
if (!this.value.isLoaded('name')) {
return ValueExpression.notLoaded<string>(
new TeaQLNotLoadedError(this.root, path, 'name'),
);
}
return new ValueExpression<string>(this.value.name);
}
version(): ValueExpression<number> {
if (this.notLoaded) return ValueExpression.notLoaded<number>(this.notLoaded);
if (!this.value) return ValueExpression.missing<number>();
const path = expressionPath(this.path, 'version');
if (!this.value.isLoaded('version')) {
return ValueExpression.notLoaded<number>(
new TeaQLNotLoadedError(this.root, path, 'version'),
);
}
return new ValueExpression<number>(this.value.version);
}
workItemList(): WorkItemListExpression {
const path = expressionPath(this.path, 'workItemList');
if (this.notLoaded) {
return new WorkItemListExpression([], this.root, path, false, this.notLoaded);
}
if (!this.value) return WorkItemListExpression.missing(this.root, path);
if (!this.value.isLoaded('workItemList')) {
return new WorkItemListExpression([], this.root, path, false,
new TeaQLNotLoadedError(this.root, path, 'workItemList'));
}
return new WorkItemListExpression(
this.value.workItemList(), this.root, path,
);
}
}
export class WorkItemExpression {
constructor(
private readonly value: WorkItem | null | undefined,
private readonly root = 'WorkItem(null)',
private readonly path = '',
private readonly notLoaded?: TeaQLNotLoadedError,
) {}
eval(): WorkItem | null | undefined {
if (this.notLoaded) throw this.notLoaded;
return this.value;
}
id(): ValueExpression<string> {
if (this.notLoaded) return ValueExpression.notLoaded<string>(this.notLoaded);
if (!this.value) return ValueExpression.missing<string>();
const path = expressionPath(this.path, 'id');
if (!this.value.isLoaded('id')) {
return ValueExpression.notLoaded<string>(
new TeaQLNotLoadedError(this.root, path, 'id'),
);
}
return new ValueExpression<string>(this.value.id);
}
title(): ValueExpression<string> {
if (this.notLoaded) return ValueExpression.notLoaded<string>(this.notLoaded);
if (!this.value) return ValueExpression.missing<string>();
const path = expressionPath(this.path, 'title');
if (!this.value.isLoaded('title')) {
return ValueExpression.notLoaded<string>(
new TeaQLNotLoadedError(this.root, path, 'title'),
);
}
return new ValueExpression<string>(this.value.title);
}
description(): ValueExpression<string> {
if (this.notLoaded) return ValueExpression.notLoaded<string>(this.notLoaded);
if (!this.value) return ValueExpression.missing<string>();
const path = expressionPath(this.path, 'description');
if (!this.value.isLoaded('description')) {
return ValueExpression.notLoaded<string>(
new TeaQLNotLoadedError(this.root, path, 'description'),
);
}
return new ValueExpression<string>(this.value.description);
}
version(): ValueExpression<number> {
if (this.notLoaded) return ValueExpression.notLoaded<number>(this.notLoaded);
if (!this.value) return ValueExpression.missing<number>();
const path = expressionPath(this.path, 'version');
if (!this.value.isLoaded('version')) {
return ValueExpression.notLoaded<number>(
new TeaQLNotLoadedError(this.root, path, 'version'),
);
}
return new ValueExpression<number>(this.value.version);
}
platformId(): ValueExpression<string | number> {
if (this.notLoaded) return ValueExpression.notLoaded<string | number>(this.notLoaded);
if (!this.value) return ValueExpression.missing<string | number>();
const path = expressionPath(this.path, 'platform');
if (!this.value.isLoaded('platform')) {
return ValueExpression.notLoaded<string | number>(
new TeaQLNotLoadedError(this.root, path, 'platform'),
);
}
const reference = this.value.platform;
return new ValueExpression<string | number>(
reference instanceof Platform
? reference.id : reference as string | number | undefined,
);
}
platform(): PlatformExpression {
const path = expressionPath(this.path, 'platform');
if (this.notLoaded) {
return new PlatformExpression(undefined, this.root, path, this.notLoaded);
}
if (!this.value) return new PlatformExpression(undefined, this.root, path);
if (!this.value.isLoaded('platform')) {
return new PlatformExpression(undefined, this.root, path,
new TeaQLNotLoadedError(this.root, path, 'platform'));
}
const relation = this.value.platform;
const target = relation == null
? undefined
: relation instanceof Platform
? relation
: Platform.fromRecord({ id: relation });
return new PlatformExpression(target, this.root, path);
}
}
export class PlatformListExpression {
constructor(
private readonly items: readonly Platform[],
private readonly root = 'Platform(null)',
private readonly path = '',
private readonly present = true,
private readonly notLoaded?: TeaQLNotLoadedError,
) {}
static missing(root?: string, path = ''): PlatformListExpression {
return new PlatformListExpression([], root, path, false);
}
size(): ValueExpression<number> {
if (this.notLoaded) return ValueExpression.notLoaded<number>(this.notLoaded);
return this.present
? new ValueExpression<number>(this.items.length)
: ValueExpression.missing<number>();
}
first(): PlatformExpression {
return this.get(0);
}
get(index: number): PlatformExpression {
const itemPath = expressionPath(this.path, `get(${index})`);
if (this.notLoaded) {
return new PlatformExpression(undefined, this.root, itemPath, this.notLoaded);
}
return !this.present || index < 0 || index >= this.items.length
? new PlatformExpression(undefined, this.root, itemPath)
: new PlatformExpression(this.items[index], this.root, itemPath);
}
}
export class WorkItemListExpression {
constructor(
private readonly items: readonly WorkItem[],
private readonly root = 'WorkItem(null)',
private readonly path = '',
private readonly present = true,
private readonly notLoaded?: TeaQLNotLoadedError,
) {}
static missing(root?: string, path = ''): WorkItemListExpression {
return new WorkItemListExpression([], root, path, false);
}
size(): ValueExpression<number> {
if (this.notLoaded) return ValueExpression.notLoaded<number>(this.notLoaded);
return this.present
? new ValueExpression<number>(this.items.length)
: ValueExpression.missing<number>();
}
first(): WorkItemExpression {
return this.get(0);
}
get(index: number): WorkItemExpression {
const itemPath = expressionPath(this.path, `get(${index})`);
if (this.notLoaded) {
return new WorkItemExpression(undefined, this.root, itemPath, this.notLoaded);
}
return !this.present || index < 0 || index >= this.items.length
? new WorkItemExpression(undefined, this.root, itemPath)
: new WorkItemExpression(this.items[index], this.root, itemPath);
}
}
export class E {
static platform(
value: Platform | null | undefined,
): PlatformExpression {
return new PlatformExpression(
value, `Platform(id=${value?.id ?? 'null'})`,
);
}
static workItem(
value: WorkItem | null | undefined,
): WorkItemExpression {
return new WorkItemExpression(
value, `WorkItem(id=${value?.id ?? 'null'})`,
);
}
} |