angular/packages/compiler/src/output/class_builder.ts

66 lines
1.9 KiB
TypeScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {ParseSourceSpan} from '../parse_util';
import * as o from './output_ast';
/**
* Create a new class stmts based on the given data.
*/
export function createClassStmt(config: {
name: string,
parent?: o.Expression,
parentArgs?: o.Expression[],
ctorParams?: o.FnParam[],
builders: ClassBuilderPart | ClassBuilderPart[],
modifiers?: o.StmtModifier[],
sourceSpan?: ParseSourceSpan
}): o.ClassStmt {
const parentArgs = config.parentArgs || [];
const superCtorStmts = config.parent ? [o.SUPER_EXPR.callFn(parentArgs).toStmt()] : [];
const builder =
concatClassBuilderParts(Array.isArray(config.builders) ? config.builders : [config.builders]);
const ctor =
new o.ClassMethod(null, config.ctorParams || [], superCtorStmts.concat(builder.ctorStmts));
return new o.ClassStmt(
config.name, config.parent || null, builder.fields, builder.getters, ctor, builder.methods,
config.modifiers || [], config.sourceSpan);
}
function concatClassBuilderParts(builders: ClassBuilderPart[]) {
return {
fields: [].concat(...(builders.map((builder => builder.fields || [])) as any)),
methods: [].concat(...(builders.map(builder => builder.methods || []) as any)),
getters: [].concat(...(builders.map(builder => builder.getters || []) as any)),
ctorStmts: [].concat(...(builders.map(builder => builder.ctorStmts || []) as any)),
};
}
/**
* Collects data for a generated class.
*/
export interface ClassBuilderPart {
fields?: o.ClassField[];
methods?: o.ClassMethod[];
getters?: o.ClassGetter[];
ctorStmts?: o.Statement[];
}
/**
* Collects data for a generated class.
*/
export interface ClassBuilder {
fields: o.ClassField[];
methods: o.ClassMethod[];
getters: o.ClassGetter[];
ctorStmts: o.Statement[];
}