horiuchi / dtsgenerator / 595

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Build # 595

Build Type

Pull #436

travis-ci

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web-flow

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Pull Request Pull Request #436: feat: add support for patternProperties

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91.97

/src/core/dtsGenerator.ts

import Debug from 'debug';
import ts from 'typescript';
import { get, set, tilde } from '../jsonPointer';
import {
    Plugin,
    Schema,
    JsonSchema,
    JsonSchemaObject,
    PreProcessHandler,
    loadPlugin,
} from './type';
import * as ast from './astBuilder';
import config from './config';
import { getSubSchema, NormalizedSchema } from './jsonSchema';
import ReferenceResolver from './referenceResolver';
import * as utils from './utils';

const debug = Debug('dtsgen');
const typeMarker = Symbol();

interface PluginConfig {
    plugin: Plugin;
    option: boolean | Record<string, unknown>;
}

export default class DtsGenerator {
    private resolver = new ReferenceResolver();
    private currentSchema!: NormalizedSchema;

    constructor(private contents: Schema[]) {}

    public async generate(): Promise<string> {
        const plugins = await this.getPlugins();
        const preProcess = await this.getPreProcess(plugins.pre);
        for (const p of preProcess) {
            this.contents = p(this.contents);
        }

        debug('generate type definition files.');
        this.contents.forEach((schema) => this.resolver.registerSchema(schema));
        await this.resolver.resolve();

        const map = this.buildSchemaMergedMap(
            this.resolver.getAllRegisteredSchema()
        );
        const root = this.walk(map, true);
        const file = ts.createSourceFile(
            '_.d.ts',
            '',
            config.target,
            false,
            ts.ScriptKind.TS
        );
        file.statements = ts.createNodeArray(root);

        const postProcess = await this.getPostProcess(plugins.post);
        const result = ts.transform(file, postProcess);
        result.dispose();

        if (config.outputAST) {
            return JSON.stringify(file, null, 2);
        } else {
            const printer = ts.createPrinter();
            return printer.printFile(file);
        }
    }

    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    private buildSchemaMergedMap(schemas: IterableIterator<Schema>): any {
        // eslint-disable-next-line @typescript-eslint/no-explicit-any
        const map: any = {};
        const paths: { path: string[]; type: Schema }[] = [];
        for (const type of schemas) {
            const path = type.id.toNames();
            paths.push({ path, type });
        }

        for (const item of paths) {
            const path = item.path;
            const parent = get(map, path, true);
            if (parent == null) {
                set(map, path, { [typeMarker]: item.type });
            } else {
                parent[typeMarker] = item.type;
            }
        }
        if (Object.keys(map).length === 0) {
            throw new Error('There is no schema in the input contents.');
        }
        return map;
    }

    private async getPlugins(): Promise<{
        pre: PluginConfig[];
        post: PluginConfig[];
    }> {
        const pre: PluginConfig[] = [];
        const post: PluginConfig[] = [];
        for (const [name, option] of Object.entries(config.plugins)) {
            const plugin = await loadPlugin(name, option);
            if (plugin == null) {
                continue;
            }
            if (plugin.preProcess != null) {
                pre.push({ plugin, option });
            }
            if (plugin.postProcess != null) {
                post.push({ plugin, option });
            }
        }
        return { pre, post };
    }
    private async getPreProcess(
        pre: PluginConfig[]
    ): Promise<PreProcessHandler[]> {
        debug('load pre process plugin.');
        const result: PreProcessHandler[] = [];
        const inputSchemas = this.resolver.getAllRegisteredIdAndSchema();
        for (const pc of pre) {
            const p = pc.plugin.preProcess;
            if (p == null) {
                continue;
            }
            const handler = await p({ inputSchemas, option: pc.option });
            if (handler != null) {
                result.push(handler);
                debug(
                    '  pre process plugin:',
                    pc.plugin.meta.name,
                    pc.plugin.meta.description
                );
            }
        }
        return result;
    }
    private async getPostProcess(
        post: PluginConfig[]
    ): Promise<ts.TransformerFactory<ts.SourceFile>[]> {
        debug('load post process plugin.');
        const result: ts.TransformerFactory<ts.SourceFile>[] = [];
        const inputSchemas = this.resolver.getAllRegisteredIdAndSchema();
        for (const pc of post) {
            const p = pc.plugin.postProcess;
            if (p == null) {
                continue;
            }
            const factory = await p({ inputSchemas, option: pc.option });
            if (factory != null) {
                result.push(factory);
                debug(
                    '  pre process plugin:',
                    pc.plugin.meta.name,
                    pc.plugin.meta.description
                );
            }
        }
        return result;
    }

    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    private walk(map: any, root: boolean): ts.Statement[] {
        const result: ts.Statement[] = [];
        const keys = Object.keys(map).sort();
        for (const key of keys) {
            const value = map[key];
            if (Object.prototype.hasOwnProperty.call(value, typeMarker)) {
                const schema = value[typeMarker] as Schema;
                debug(
                    `  walk doProcess: key=${key} schemaId=${schema.id.getAbsoluteId()}`
                );
                result.push(this.walkSchema(schema, root));
            }
            if (typeof value === 'object' && Object.keys(value).length > 0) {
                result.push(
                    ast.buildNamespaceNode(key, this.walk(value, false), root)
                );
            }
        }
        return result;
    }

    private walkSchema(schema: Schema, root: boolean): ts.DeclarationStatement {
        const normalized = this.normalizeContent(schema);
        this.currentSchema = normalized;

        const getNode = () => {
            const type = normalized.content.type;
            switch (type) {
                case 'any':
                    return this.generateAnyTypeModel(normalized, root);
                case 'array':
                    return this.generateTypeCollection(normalized, root);
                case 'object':
                default:
                    return this.generateDeclareType(normalized, root);
            }
        };
        return ast.addOptionalInformation(
            ast.addComment(getNode(), normalized, true),
            normalized,
            true
        );
    }

    private normalizeContent(
        schema: Schema,
        pointer?: string
    ): NormalizedSchema {
        if (pointer != null) {
            schema = getSubSchema(schema, pointer);
        }
        const content = this.normalizeSchemaContent(schema.content);
        return Object.assign({}, schema, { content });
    }

    private normalizeSchemaContent(content: JsonSchema): JsonSchemaObject {
        if (typeof content === 'boolean') {
            content = content ? {} : { not: {} };
        } else {
            if (content.allOf) {
                const work = content;
                for (const sub of content.allOf) {
                    if (typeof sub === 'object' && sub.$ref) {
                        const ref = this.resolver.dereference(sub.$ref);
                        const normalized = this.normalizeContent(ref).content;
                        utils.mergeSchema(work, normalized);
                    } else if (typeof sub === 'object') {
                        const normalized = this.normalizeSchemaContent(sub);
                        utils.mergeSchema(work, normalized);
                    } else {
                        utils.mergeSchema(work, sub);
                    }
                }
                delete content.allOf;
                content = work;
            }
            if (
                content.type === undefined &&
                (content.properties || content.additionalProperties)
            ) {
                content.type = 'object';
            }
            if (content.nullable) {
                const type = content.type;
                const anyOf = content.anyOf;
                if (Array.isArray(anyOf)) {
                    anyOf.push({ type: 'null' });
                } else if (type == null) {
                    content.type = 'null';
                } else if (!Array.isArray(type)) {
                    content.type = [type, 'null'];
                } else {
                    type.push('null');
                }
            }
            const types = content.type;
            if (Array.isArray(types)) {
                const reduced = utils.reduceTypes(types);
                content.type = reduced.length === 1 ? reduced[0] : reduced;
            }
        }
        return content;
    }
    private generateDeclareType(
        schema: NormalizedSchema,
        root: boolean
    ): ts.DeclarationStatement {
        const content = schema.content;
        if (
            content.$ref ||
            content.oneOf ||
            content.anyOf ||
            content.enum ||
            'const' in content ||
            content.type !== 'object'
        ) {
            const type = this.generateTypeProperty(schema);
            return ast.buildTypeAliasNode(schema.id, type, root);
        } else {
            const members = this.generateProperties(schema);
            return ast.buildInterfaceNode(schema.id, members, root);
        }
    }

    private generateAnyTypeModel(
        schema: NormalizedSchema,
        root: boolean
    ): ts.DeclarationStatement {
        const member = ast.buildIndexSignatureNode(
            'name',
            ast.buildStringKeyword(),
            ast.buildAnyKeyword()
        );
        return ast.buildInterfaceNode(schema.id, [member], root);
    }

    private generateTypeCollection(
        schema: NormalizedSchema,
        root: boolean
    ): ts.DeclarationStatement {
        const type = this.generateArrayTypeProperty(schema);
        return ast.buildTypeAliasNode(schema.id, type, root);
    }

    private generateProperties(baseSchema: NormalizedSchema): ts.TypeElement[] {
        const result: ts.TypeElement[] = [];
        const content = baseSchema.content;
        if (content.additionalProperties) {
            const schema = this.normalizeContent(
                baseSchema,
                '/additionalProperties'
            );
            const valueType =
                content.additionalProperties === true
                    ? ast.buildAnyKeyword()
                    : this.generateTypeProperty(schema);
            const node = ast.buildIndexSignatureNode(
                'name',
                ast.buildStringKeyword(),
                valueType
            );
            result.push(ast.addOptionalInformation(node, schema, true));
        }
        if (content.properties) {
            for (const propertyName of Object.keys(content.properties)) {
                const schema = this.normalizeContent(
                    baseSchema,
                    '/properties/' + tilde(propertyName)
                );
                const node = ast.buildPropertySignature(
                    schema,
                    propertyName,
                    this.generateTypeProperty(schema),
                    baseSchema.content.required,
                    false
                );
                result.push(
                    ast.addOptionalInformation(
                        ast.addComment(node, schema, true),
                        schema,
                        true
                    )
                );
            }
        }
        if (content.patternProperties) {
            const schemasTypes = [];
            for (const propertyName of Object.keys(content.patternProperties)) {
                const schema = this.normalizeContent(
                    baseSchema,
                    '/patternProperties/' + tilde(propertyName)
                );
                schemasTypes.push(this.generateTypeProperty(schema));
            }
            const node = ast.buildPropertySignature(
                { content: { readOnly: false } } as NormalizedSchema,
                'pattern',
                ts.createUnionTypeNode(schemasTypes),
                baseSchema.content.required,
                true
            );
            result.push(
                ts.addSyntheticTrailingComment(
                    node,
                    ts.SyntaxKind.MultiLineCommentTrivia,
                    ` Patterns: ${Object.keys(content.patternProperties).join(
                        ' | '
                    )} `
                )
            );
        }
        return result;
    }
    private generateTypeProperty(
        schema: NormalizedSchema,
        terminate = true
    ): ts.TypeNode {
        const content = schema.content;
        if (content.$ref) {
            const ref = this.resolver.dereference(content.$ref);
            if (ref.id == null) {
                throw new Error(
                    'target referenced id is nothing: ' + content.$ref
                );
            }
            const refSchema = this.normalizeContent(ref);
            const node = ast.buildTypeReferenceNode(
                refSchema,
                this.currentSchema
            );
            return ast.addOptionalInformation(
                ast.addComment(node, refSchema, false),
                refSchema,
                false
            );
        }
        if (content.anyOf) {
            return this.generateArrayedType(
                schema,
                content.anyOf,
                '/anyOf/',
                terminate
            );
        }
        if (content.oneOf) {
            return this.generateArrayedType(
                schema,
                content.oneOf,
                '/oneOf/',
                terminate
            );
        }
        if (content.enum) {
            return ast.buildUnionTypeNode(
                content.enum,
                (value) => {
                    return this.generateLiteralTypeNode(content, value);
                },
                terminate
            );
        } else if ('const' in content) {
            return this.generateLiteralTypeNode(content, content.const);
        } else {
            return this.generateType(schema, terminate);
        }
    }
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    private generateLiteralTypeNode(
        content: JsonSchemaObject,
        value: any
    ): ts.LiteralTypeNode {
        switch (content.type) {
            case 'integer':
            case 'number':
                return ast.buildNumericLiteralTypeNode('' + value);
            case 'boolean':
                return ast.buildBooleanLiteralTypeNode(value);
            default:
                return ast.buildStringLiteralTypeNode(value);
        }
    }

    private generateArrayedType(
        baseSchema: NormalizedSchema,
        contents: JsonSchema[],
        path: string,
        terminate: boolean
    ): ts.TypeNode {
        return ast.addOptionalInformation(
            ast.addComment(
                ast.buildUnionTypeNode(
                    contents,
                    (_, index) => {
                        const schema = this.normalizeContent(
                            baseSchema,
                            path + index
                        );
                        if (schema.id.isEmpty()) {
                            return ast.addOptionalInformation(
                                this.generateTypeProperty(schema, false),
                                schema,
                                false
                            );
                        } else {
                            return ast.addOptionalInformation(
                                ast.buildTypeReferenceNode(
                                    schema,
                                    this.currentSchema
                                ),
                                schema,
                                false
                            );
                        }
                    },
                    terminate
                ),
                baseSchema,
                false
            ),
            baseSchema,
            terminate
        );
    }

    private generateArrayTypeProperty(
        schema: NormalizedSchema,
        terminate = true
    ): ts.TypeNode {
        const items = schema.content.items;
        const minItems = schema.content.minItems;
        const maxItems = schema.content.maxItems;
        if (items == null) {
            return ast.buildSimpleArrayNode(ast.buildAnyKeyword());
        } else if (!Array.isArray(items)) {
            const subSchema = this.normalizeContent(schema, '/items');
            const node = this.generateTypeProperty(subSchema, false);
            return ast.buildSimpleArrayNode(
                ast.addOptionalInformation(node, subSchema, false)
            );
        } else if (
            items.length === 0 &&
            minItems === undefined &&
            maxItems === undefined
        ) {
            return ast.buildSimpleArrayNode(ast.buildAnyKeyword());
        } else if (
            minItems != null &&
            maxItems != null &&
            maxItems < minItems
        ) {
            return ast.buildNeverKeyword();
        } else {
            const types: ts.TypeNode[] = [];
            for (let i = 0; i < items.length; i++) {
                const type = this.normalizeContent(schema, '/items/' + i);
                if (type.id.isEmpty()) {
                    types.push(this.generateTypeProperty(type, false));
                } else {
                    types.push(
                        ast.addOptionalInformation(
                            ast.buildTypeReferenceNode(
                                type,
                                this.currentSchema
                            ),
                            type,
                            false
                        )
                    );
                }
            }
            return ast.addOptionalInformation(
                ast.buildTupleTypeNode(types, minItems, maxItems),
                schema,
                terminate
            );
        }
    }

    private generateType(
        schema: NormalizedSchema,
        terminate: boolean
    ): ts.TypeNode {
        const type = schema.content.type;
        if (type == null) {
            return ast.buildAnyKeyword();
        } else if (typeof type === 'string') {
            return this.generateTypeName(schema, type, terminate);
        } else {
            const types = utils.reduceTypes(type);
            if (types.length <= 1) {
                schema.content.type = types[0];
                return this.generateType(schema, terminate);
            } else {
                return ast.buildUnionTypeNode(
                    types,
                    (t) => {
                        return this.generateTypeName(schema, t, false);
                    },
                    terminate
                );
            }
        }
    }
    private generateTypeName(
        schema: NormalizedSchema,
        type: string,
        terminate: boolean
    ): ts.TypeNode {
        const tsType = utils.toTSType(type, schema.content);
        // TODO: if文の順番がおかしい？
        if (tsType) {
            return ast.buildKeyword(tsType);
        } else if (type === 'object') {
            return ast.buildTypeLiteralNode(this.generateProperties(schema));
        } else if (type === 'array') {
            return this.generateArrayTypeProperty(schema, terminate);
        } else {
            throw new Error('unknown type: ' + type);
        }
    }
}

1	import Debug from 'debug';	3✔
2	import ts from 'typescript';	3✔
3	import { get, set, tilde } from '../jsonPointer';	3✔
4	import {	3✔
5	Plugin,
6	Schema,
7	JsonSchema,
8	JsonSchemaObject,
9	PreProcessHandler,
10	loadPlugin,
11	} from './type';
12	import * as ast from './astBuilder';	3✔
13	import config from './config';	3✔
14	import { getSubSchema, NormalizedSchema } from './jsonSchema';	3✔
15	import ReferenceResolver from './referenceResolver';	3✔
16	import * as utils from './utils';	3✔
17
18	const debug = Debug('dtsgen');	3✔
19	const typeMarker = Symbol();	3✔
20
21	interface PluginConfig {
22	plugin: Plugin;
23	option: boolean \| Record<string, unknown>;
24	}
25
26	export default class DtsGenerator {	3✔
27	private resolver = new ReferenceResolver();	210✔
28	private currentSchema!: NormalizedSchema;
29
30	constructor(private contents: Schema[]) {}	210✔
31
32	public async generate(): Promise<string> {	3✔
33	const plugins = await this.getPlugins();	210✔
34	const preProcess = await this.getPreProcess(plugins.pre);	207✔
35	for (const p of preProcess) {	207✔
36	this.contents = p(this.contents);	3✔
37	}
38
39	debug('generate type definition files.');	207✔
40	this.contents.forEach((schema) => this.resolver.registerSchema(schema));	225✔
41	await this.resolver.resolve();	414✔
42
43	const map = this.buildSchemaMergedMap(	201✔
44	this.resolver.getAllRegisteredSchema()
45	);
46	const root = this.walk(map, true);	195✔
47	const file = ts.createSourceFile(	189✔
48	'_.d.ts',
49	'',
50	config.target,
51	false,
52	ts.ScriptKind.TS
53	);
54	file.statements = ts.createNodeArray(root);	189✔
55
56	const postProcess = await this.getPostProcess(plugins.post);	189✔
57	const result = ts.transform(file, postProcess);	189✔
58	result.dispose();	189✔
59
60	if (config.outputAST) {	189!
61	return JSON.stringify(file, null, 2);	×
62	} else {
63	const printer = ts.createPrinter();	189✔
64	return printer.printFile(file);	189✔
65	}
66	}
67
68	// eslint-disable-next-line @typescript-eslint/no-explicit-any
69	private buildSchemaMergedMap(schemas: IterableIterator<Schema>): any {	3✔
70	// eslint-disable-next-line @typescript-eslint/no-explicit-any
71	const map: any = {};	201✔
72	const paths: { path: string[]; type: Schema }[] = [];	201✔
73	for (const type of schemas) {	1,461✔
74	const path = type.id.toNames();	1,461✔
75	paths.push({ path, type });	1,461✔
76	}
77
78	for (const item of paths) {	1,461✔
79	const path = item.path;	1,461✔
80	const parent = get(map, path, true);	1,461✔
81	if (parent == null) {	1,461✔
82	set(map, path, { [typeMarker]: item.type });	1,458✔
83	} else {
84	parent[typeMarker] = item.type;	3✔
85	}
86	}
87	if (Object.keys(map).length === 0) {	201✔
88	throw new Error('There is no schema in the input contents.');	6✔
89	}
90	return map;	195✔
91	}
92
93	private async getPlugins(): Promise<{	3✔
94	pre: PluginConfig[];
95	post: PluginConfig[];
96	}> {
97	const pre: PluginConfig[] = [];	210✔
98	const post: PluginConfig[] = [];	210✔
99	for (const [name, option] of Object.entries(config.plugins)) {	210✔
100	const plugin = await loadPlugin(name, option);	15✔
101	if (plugin == null) {	12!
102	continue;	×
103	}
104	if (plugin.preProcess != null) {	12✔
105	pre.push({ plugin, option });	3✔
106	}
107	if (plugin.postProcess != null) {	12!
108	post.push({ plugin, option });	12✔
109	}
110	}
111	return { pre, post };	207✔
112	}
113	private async getPreProcess(	3✔
114	pre: PluginConfig[]
115	): Promise<PreProcessHandler[]> {
116	debug('load pre process plugin.');	207✔
117	const result: PreProcessHandler[] = [];	207✔
118	const inputSchemas = this.resolver.getAllRegisteredIdAndSchema();	207✔
119	for (const pc of pre) {	207✔
120	const p = pc.plugin.preProcess;	3✔
121	if (p == null) {	3!
122	continue;	×
123	}
124	const handler = await p({ inputSchemas, option: pc.option });	3✔
125	if (handler != null) {	3!
126	result.push(handler);	3✔
127	debug(	3✔
128	' pre process plugin:',
129	pc.plugin.meta.name,
130	pc.plugin.meta.description
131	);
132	}
133	}
134	return result;	207✔
135	}
136	private async getPostProcess(	3✔
137	post: PluginConfig[]
138	): Promise<ts.TransformerFactory<ts.SourceFile>[]> {
139	debug('load post process plugin.');	189✔
140	const result: ts.TransformerFactory<ts.SourceFile>[] = [];	189✔
141	const inputSchemas = this.resolver.getAllRegisteredIdAndSchema();	189✔
142	for (const pc of post) {	189✔
143	const p = pc.plugin.postProcess;	12✔
144	if (p == null) {	12!
145	continue;	×
146	}
147	const factory = await p({ inputSchemas, option: pc.option });	12✔
148	if (factory != null) {	12!
149	result.push(factory);	12✔
150	debug(	12✔
151	' pre process plugin:',
152	pc.plugin.meta.name,
153	pc.plugin.meta.description
154	);
155	}
156	}
157	return result;	189✔
158	}
159
160	// eslint-disable-next-line @typescript-eslint/no-explicit-any
161	private walk(map: any, root: boolean): ts.Statement[] {	3✔
162	const result: ts.Statement[] = [];	924✔
163	const keys = Object.keys(map).sort();	924✔
164	for (const key of keys) {	2,139✔
165	const value = map[key];	2,139✔
166	if (Object.prototype.hasOwnProperty.call(value, typeMarker)) {	2,139✔
167	const schema = value[typeMarker] as Schema;	1,461✔
168	debug(	1,461✔
169	` walk doProcess: key=${key} schemaId=${schema.id.getAbsoluteId()}`
170	);
171	result.push(this.walkSchema(schema, root));	1,461✔
172	}
173	if (typeof value === 'object' && Object.keys(value).length > 0) {	2,133✔
174	result.push(	729✔
175	ast.buildNamespaceNode(key, this.walk(value, false), root)
176	);
177	}
178	}
179	return result;	912✔
180	}
181
182	private walkSchema(schema: Schema, root: boolean): ts.DeclarationStatement {	1,461✔
183	const normalized = this.normalizeContent(schema);	1,461✔
184	this.currentSchema = normalized;	1,461✔
185
186	const getNode = () => {	1,461✔
187	const type = normalized.content.type;	1,461✔
188	switch (type) {	1,461✔
189	case 'any':	2,232!
190	return this.generateAnyTypeModel(normalized, root);	×
191	case 'array':
192	return this.generateTypeCollection(normalized, root);	111✔
193	case 'object':
194	default:
195	return this.generateDeclareType(normalized, root);	1,350✔
196	}
197	};
198	return ast.addOptionalInformation(	1,461✔
199	ast.addComment(getNode(), normalized, true),
200	normalized,
201	true
202	);
203	}
204
205	private normalizeContent(	3✔
206	schema: Schema,
207	pointer?: string
208	): NormalizedSchema {
209	if (pointer != null) {	9,285✔
210	schema = getSubSchema(schema, pointer);	5,076✔
211	}
212	const content = this.normalizeSchemaContent(schema.content);	9,285✔
213	return Object.assign({}, schema, { content });	9,285✔
214	}
215
216	private normalizeSchemaContent(content: JsonSchema): JsonSchemaObject {	3✔
217	if (typeof content === 'boolean') {	9,384✔
218	content = content ? {} : { not: {} };	33!
219	} else {
220	if (content.allOf) {	9,351✔
221	const work = content;	108✔
222	for (const sub of content.allOf) {	195✔
223	if (typeof sub === 'object' && sub.$ref) {	195✔
224	const ref = this.resolver.dereference(sub.$ref);	96✔
225	const normalized = this.normalizeContent(ref).content;	96✔
226	utils.mergeSchema(work, normalized);	96✔
227	} else if (typeof sub === 'object') {	99!
228	const normalized = this.normalizeSchemaContent(sub);	99✔
229	utils.mergeSchema(work, normalized);	99✔
230	} else {
231	utils.mergeSchema(work, sub);	×
232	}
233	}
234	delete content.allOf;	108✔
235	content = work;	108✔
236	}
237	if (	9,351✔
238	content.type === undefined &&	16,947✔
239	(content.properties \|\| content.additionalProperties)
240	) {
241	content.type = 'object';	174✔
242	}
243	if (content.nullable) {	9,351✔
244	const type = content.type;	12✔
245	const anyOf = content.anyOf;	12✔
246	if (Array.isArray(anyOf)) {	12✔
247	anyOf.push({ type: 'null' });	3✔
248	} else if (type == null) {	9!
249	content.type = 'null';	×
250	} else if (!Array.isArray(type)) {	9✔
251	content.type = [type, 'null'];	6✔
252	} else {
253	type.push('null');	3✔
254	}
255	}
256	const types = content.type;	9,351✔
257	if (Array.isArray(types)) {	9,351✔
258	const reduced = utils.reduceTypes(types);	93✔
259	content.type = reduced.length === 1 ? reduced[0] : reduced;	93✔
260	}
261	}
262	return content;	9,384✔
263	}
264	private generateDeclareType(	3✔
265	schema: NormalizedSchema,
266	root: boolean
267	): ts.DeclarationStatement {
268	const content = schema.content;	1,350✔
269	if (	1,350✔
270	content.$ref \|\|	6,423✔
271	content.oneOf \|\|
272	content.anyOf \|\|
273	content.enum \|\|
274	'const' in content \|\|
275	content.type !== 'object'
276	) {
277	const type = this.generateTypeProperty(schema);	585✔
278	return ast.buildTypeAliasNode(schema.id, type, root);	582✔
279	} else {
280	const members = this.generateProperties(schema);	765✔
281	return ast.buildInterfaceNode(schema.id, members, root);	762✔
282	}
283	}
284
285	private generateAnyTypeModel(	3✔
286	schema: NormalizedSchema,
287	root: boolean
288	): ts.DeclarationStatement {
289	const member = ast.buildIndexSignatureNode(	×
290	'name',
291	ast.buildStringKeyword(),
292	ast.buildAnyKeyword()
293	);
294	return ast.buildInterfaceNode(schema.id, [member], root);	×
295	}
296
297	private generateTypeCollection(	3✔
298	schema: NormalizedSchema,
299	root: boolean
300	): ts.DeclarationStatement {
301	const type = this.generateArrayTypeProperty(schema);	111✔
302	return ast.buildTypeAliasNode(schema.id, type, root);	111✔
303	}
304
305	private generateProperties(baseSchema: NormalizedSchema): ts.TypeElement[] {	3✔
306	const result: ts.TypeElement[] = [];	1,026✔
307	const content = baseSchema.content;	1,026✔
308	if (content.additionalProperties) {	1,026✔
309	const schema = this.normalizeContent(	174✔
310	baseSchema,
311	'/additionalProperties'
312	);
313	const valueType =
314	content.additionalProperties === true	174✔
315	? ast.buildAnyKeyword()	174✔
316	: this.generateTypeProperty(schema);
317	const node = ast.buildIndexSignatureNode(	174✔
318	'name',
319	ast.buildStringKeyword(),
320	valueType
321	);
322	result.push(ast.addOptionalInformation(node, schema, true));	174✔
323	}
324	if (content.properties) {	1,026✔
325	for (const propertyName of Object.keys(content.properties)) {	3,651✔
326	const schema = this.normalizeContent(	3,651✔
327	baseSchema,
328	'/properties/' + tilde(propertyName)
329	);
330	const node = ast.buildPropertySignature(	3,651✔
331	schema,
332	propertyName,
333	this.generateTypeProperty(schema),
334	baseSchema.content.required,
335	false
336	);
337	result.push(	3,648✔
338	ast.addOptionalInformation(
339	ast.addComment(node, schema, true),
340	schema,
341	true
342	)
343	);
344	}
345	}
346	if (content.patternProperties) {	1,023✔
347	const schemasTypes = [];	249✔
348	for (const propertyName of Object.keys(content.patternProperties)) {	273✔
349	const schema = this.normalizeContent(	273✔
350	baseSchema,
351	'/patternProperties/' + tilde(propertyName)
352	);
353	schemasTypes.push(this.generateTypeProperty(schema));	273✔
354	}
355	const node = ast.buildPropertySignature(	249✔
356	{ content: { readOnly: false } } as NormalizedSchema,
357	'pattern',
358	ts.createUnionTypeNode(schemasTypes),
359	baseSchema.content.required,
360	true
361	);
362	result.push(	249✔
363	ts.addSyntheticTrailingComment(
364	node,
365	ts.SyntaxKind.MultiLineCommentTrivia,
366	` Patterns: ${Object.keys(content.patternProperties).join(
367	' \| '
368	)} `
369	)
370	);
371	}
372	return result;	1,023✔
373	}
374	private generateTypeProperty(	5,640✔
375	schema: NormalizedSchema,
376	terminate = true	10,302✔
377	): ts.TypeNode {
378	const content = schema.content;	5,640✔
379	if (content.$ref) {	5,640✔
380	const ref = this.resolver.dereference(content.$ref);	2,652✔
381	if (ref.id == null) {	2,652!
382	throw new Error(	×
383	'target referenced id is nothing: ' + content.$ref
384	);
385	}
386	const refSchema = this.normalizeContent(ref);	2,652✔
387	const node = ast.buildTypeReferenceNode(	2,652✔
388	refSchema,
389	this.currentSchema
390	);
391	return ast.addOptionalInformation(	2,652✔
392	ast.addComment(node, refSchema, false),
393	refSchema,
394	false
395	);
396	}
397	if (content.anyOf) {	2,988✔
398	return this.generateArrayedType(	102✔
399	schema,
400	content.anyOf,
401	'/anyOf/',
402	terminate
403	);
404	}
405	if (content.oneOf) {	2,886✔
406	return this.generateArrayedType(	108✔
407	schema,
408	content.oneOf,
409	'/oneOf/',
410	terminate
411	);
412	}
413	if (content.enum) {	2,778✔
414	return ast.buildUnionTypeNode(	282✔
415	content.enum,
416	(value) => {
417	return this.generateLiteralTypeNode(content, value);	759✔
418	},
419	terminate
420	);
421	} else if ('const' in content) {	2,496✔
422	return this.generateLiteralTypeNode(content, content.const);	18✔
423	} else {
424	return this.generateType(schema, terminate);	2,478✔
425	}
426	}
427	// eslint-disable-next-line @typescript-eslint/no-explicit-any
428	private generateLiteralTypeNode(	3✔
429	content: JsonSchemaObject,
430	value: any
431	): ts.LiteralTypeNode {
432	switch (content.type) {	777✔
433	case 'integer':	804✔
434	case 'number':
435	return ast.buildNumericLiteralTypeNode('' + value);	39✔
436	case 'boolean':
437	return ast.buildBooleanLiteralTypeNode(value);	12✔
438	default:
439	return ast.buildStringLiteralTypeNode(value);	726✔
440	}
441	}
442
443	private generateArrayedType(	210✔
444	baseSchema: NormalizedSchema,
445	contents: JsonSchema[],
446	path: string,
447	terminate: boolean
448	): ts.TypeNode {
449	return ast.addOptionalInformation(	210✔
450	ast.addComment(
451	ast.buildUnionTypeNode(
452	contents,
453	(_, index) => {
454	const schema = this.normalizeContent(	540✔
455	baseSchema,
456	path + index
457	);
458	if (schema.id.isEmpty()) {	540!
459	return ast.addOptionalInformation(	540✔
460	this.generateTypeProperty(schema, false),
461	schema,
462	false
463	);
464	} else {
465	return ast.addOptionalInformation(	×
466	ast.buildTypeReferenceNode(
467	schema,
468	this.currentSchema
469	),
470	schema,
471	false
472	);
473	}
474	},
475	terminate
476	),
477	baseSchema,
478	false
479	),
480	baseSchema,
481	terminate
482	);
483	}
484
485	private generateArrayTypeProperty(	3✔
486	schema: NormalizedSchema,
487	terminate = true	525✔
488	): ts.TypeNode {
489	const items = schema.content.items;	414✔
490	const minItems = schema.content.minItems;	414✔
491	const maxItems = schema.content.maxItems;	414✔
492	if (items == null) {	414✔
493	return ast.buildSimpleArrayNode(ast.buildAnyKeyword());	33✔
494	} else if (!Array.isArray(items)) {	381✔
495	const subSchema = this.normalizeContent(schema, '/items');	339✔
496	const node = this.generateTypeProperty(subSchema, false);	339✔
497	return ast.buildSimpleArrayNode(	339✔
498	ast.addOptionalInformation(node, subSchema, false)
499	);
500	} else if (	42✔
501	items.length === 0 &&	57✔
502	minItems === undefined &&
503	maxItems === undefined
504	) {
505	return ast.buildSimpleArrayNode(ast.buildAnyKeyword());	3✔
506	} else if (	39✔
507	minItems != null &&	78✔
508	maxItems != null &&
509	maxItems < minItems
510	) {
511	return ast.buildNeverKeyword();	3✔
512	} else {
513	const types: ts.TypeNode[] = [];	36✔
514	for (let i = 0; i < items.length; i++) {	36✔
515	const type = this.normalizeContent(schema, '/items/' + i);	99✔
516	if (type.id.isEmpty()) {	99!
517	types.push(this.generateTypeProperty(type, false));	99✔
518	} else {
519	types.push(	×
520	ast.addOptionalInformation(
521	ast.buildTypeReferenceNode(
522	type,
523	this.currentSchema
524	),
525	type,
526	false
527	)
528	);
529	}
530	}
531	return ast.addOptionalInformation(	36✔
532	ast.buildTupleTypeNode(types, minItems, maxItems),
533	schema,
534	terminate
535	);
536	}
537	}
538
539	private generateType(	2,478✔
540	schema: NormalizedSchema,
541	terminate: boolean
542	): ts.TypeNode {
543	const type = schema.content.type;	2,478✔
544	if (type == null) {	2,478✔
545	return ast.buildAnyKeyword();	63✔
546	} else if (typeof type === 'string') {	2,415✔
547	return this.generateTypeName(schema, type, terminate);	2,382✔
548	} else {
549	const types = utils.reduceTypes(type);	33✔
550	if (types.length <= 1) {	33!
551	schema.content.type = types[0];	×
552	return this.generateType(schema, terminate);	×
553	} else {
554	return ast.buildUnionTypeNode(	33✔
555	types,
556	(t) => {
557	return this.generateTypeName(schema, t, false);	78✔
558	},
559	terminate
560	);
561	}
562	}
563	}
564	private generateTypeName(	3✔
565	schema: NormalizedSchema,
566	type: string,
567	terminate: boolean
568	): ts.TypeNode {
569	const tsType = utils.toTSType(type, schema.content);	2,460✔
570	// TODO: if文の順番がおかしい？
571	if (tsType) {	2,454✔
572	return ast.buildKeyword(tsType);	1,890✔
573	} else if (type === 'object') {	564✔
574	return ast.buildTypeLiteralNode(this.generateProperties(schema));	261✔
575	} else if (type === 'array') {	303!
576	return this.generateArrayTypeProperty(schema, terminate);	303✔
577	} else {
578	throw new Error('unknown type: ' + type);	×
579	}
580	}
581	}	3✔

horiuchi / dtsgenerator / 595

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