2 Object.defineProperty(exports, "__esModule", { value: true });
3 const types_1 = require("./types");
4 const __1 = require("..");
5 const codegen_1 = require("../codegen");
6 const ref_error_1 = require("../ref_error");
7 const names_1 = require("../names");
8 const code_1 = require("../../vocabularies/code");
9 const ref_1 = require("../../vocabularies/jtd/ref");
10 const type_1 = require("../../vocabularies/jtd/type");
11 const parseJson_1 = require("../../runtime/parseJson");
12 const util_1 = require("../util");
13 const timestamp_1 = require("../../runtime/timestamp");
15 elements: parseElements,
17 discriminator: parseDiscriminator,
18 properties: parseProperties,
19 optionalProperties: parseProperties,
24 function compileParser(sch, definitions) {
25 const _sch = __1.getCompilingSchema.call(this, sch);
28 const { es5, lines } = this.opts.code;
29 const { ownProperties } = this.opts;
30 const gen = new codegen_1.CodeGen(this.scope, { es5, lines, ownProperties });
31 const parseName = gen.scopeName("parse");
38 data: names_1.default.data,
44 this._compilations.add(sch);
45 sch.parseName = parseName;
47 gen.optimize(this.opts.code.optimize);
48 const parseFuncCode = gen.toString();
49 sourceCode = `${gen.scopeRefs(names_1.default.scope)}return ${parseFuncCode}`;
50 const makeParse = new Function(`${names_1.default.scope}`, sourceCode);
51 const parse = makeParse(this.scope.get());
52 this.scope.value(parseName, { ref: parse });
57 this.logger.error("Error compiling parser, function code:", sourceCode);
63 this._compilations.delete(sch);
67 exports.default = compileParser;
68 const undef = codegen_1._ `undefined`;
69 function parserFunction(cxt) {
70 const { gen, parseName, char } = cxt;
71 gen.func(parseName, codegen_1._ `${names_1.default.json}, ${names_1.default.jsonPos}, ${names_1.default.jsonPart}`, false, () => {
72 gen.let(names_1.default.data);
74 gen.assign(codegen_1._ `${parseName}.message`, undef);
75 gen.assign(codegen_1._ `${parseName}.position`, undef);
76 gen.assign(names_1.default.jsonPos, codegen_1._ `${names_1.default.jsonPos} || 0`);
77 gen.const(names_1.default.jsonLen, codegen_1._ `${names_1.default.json}.length`);
80 gen.if(names_1.default.jsonPart, () => {
81 gen.assign(codegen_1._ `${parseName}.position`, names_1.default.jsonPos);
82 gen.return(names_1.default.data);
84 gen.if(codegen_1._ `${names_1.default.jsonPos} === ${names_1.default.jsonLen}`, () => gen.return(names_1.default.data));
88 function parseCode(cxt) {
90 for (const key of types_1.jtdForms) {
91 if (key in cxt.schema) {
97 parseNullable(cxt, genParse[form]);
101 const parseBoolean = parseBooleanToken(true, parseBooleanToken(false, jsonSyntaxError));
102 function parseNullable(cxt, parseForm) {
103 const { gen, schema, data } = cxt;
104 if (!schema.nullable)
105 return parseForm(cxt);
106 tryParseToken(cxt, "null", parseForm, () => gen.assign(data, null));
108 function parseElements(cxt) {
109 const { gen, schema, data } = cxt;
110 parseToken(cxt, "[");
111 const ix = gen.let("i", 0);
112 gen.assign(data, codegen_1._ `[]`);
113 parseItems(cxt, "]", () => {
114 const el = gen.let("el");
115 parseCode({ ...cxt, schema: schema.elements, data: el });
116 gen.assign(codegen_1._ `${data}[${ix}++]`, el);
119 function parseValues(cxt) {
120 const { gen, schema, data } = cxt;
121 parseToken(cxt, "{");
122 gen.assign(data, codegen_1._ `{}`);
123 parseItems(cxt, "}", () => parseKeyValue(cxt, schema.values));
125 function parseItems(cxt, endToken, block) {
126 tryParseItems(cxt, endToken, block);
127 parseToken(cxt, endToken);
129 function tryParseItems(cxt, endToken, block) {
131 gen.for(codegen_1._ `;${names_1.default.jsonPos}<${names_1.default.jsonLen} && ${jsonSlice(1)}!==${endToken};`, () => {
133 tryParseToken(cxt, ",", () => gen.break(), hasItem);
136 tryParseToken(cxt, endToken, () => { }, jsonSyntaxError);
139 function parseKeyValue(cxt, schema) {
141 const key = gen.let("key");
142 parseString({ ...cxt, data: key });
143 parseToken(cxt, ":");
144 parsePropertyValue(cxt, key, schema);
146 function parseDiscriminator(cxt) {
147 const { gen, data, schema } = cxt;
148 const { discriminator, mapping } = schema;
149 parseToken(cxt, "{");
150 gen.assign(data, codegen_1._ `{}`);
151 const startPos = gen.const("pos", names_1.default.jsonPos);
152 const value = gen.let("value");
153 const tag = gen.let("tag");
154 tryParseItems(cxt, "}", () => {
155 const key = gen.let("key");
156 parseString({ ...cxt, data: key });
157 parseToken(cxt, ":");
158 gen.if(codegen_1._ `${key} === ${discriminator}`, () => {
159 parseString({ ...cxt, data: tag });
160 gen.assign(codegen_1._ `${data}[${key}]`, tag);
162 }, () => parseEmpty({ ...cxt, data: value }) // can be discarded/skipped
165 gen.assign(names_1.default.jsonPos, startPos);
166 gen.if(codegen_1._ `${tag} === undefined`);
167 parsingError(cxt, codegen_1.str `discriminator tag not found`);
168 for (const tagValue in mapping) {
169 gen.elseIf(codegen_1._ `${tag} === ${tagValue}`);
170 parseSchemaProperties({ ...cxt, schema: mapping[tagValue] }, discriminator);
173 parsingError(cxt, codegen_1.str `discriminator value not in schema`);
176 function parseProperties(cxt) {
177 const { gen, data } = cxt;
178 parseToken(cxt, "{");
179 gen.assign(data, codegen_1._ `{}`);
180 parseSchemaProperties(cxt);
182 function parseSchemaProperties(cxt, discriminator) {
183 const { gen, schema, data } = cxt;
184 const { properties, optionalProperties, additionalProperties } = schema;
185 parseItems(cxt, "}", () => {
186 const key = gen.let("key");
187 parseString({ ...cxt, data: key });
188 parseToken(cxt, ":");
190 parseDefinedProperty(cxt, key, properties);
191 parseDefinedProperty(cxt, key, optionalProperties);
193 gen.elseIf(codegen_1._ `${key} === ${discriminator}`);
194 const tag = gen.let("tag");
195 parseString({ ...cxt, data: tag }); // can be discarded, it is already assigned
198 if (additionalProperties) {
199 parseEmpty({ ...cxt, data: codegen_1._ `${data}[${key}]` });
202 parsingError(cxt, codegen_1.str `property ${key} not allowed`);
207 const hasProp = code_1.hasPropFunc(gen);
208 const allProps = codegen_1.and(...Object.keys(properties).map((p) => codegen_1._ `${hasProp}.call(${data}, ${p})`));
209 gen.if(codegen_1.not(allProps), () => parsingError(cxt, codegen_1.str `missing required properties`));
212 function parseDefinedProperty(cxt, key, schemas = {}) {
214 for (const prop in schemas) {
215 gen.elseIf(codegen_1._ `${key} === ${prop}`);
216 parsePropertyValue(cxt, key, schemas[prop]);
219 function parsePropertyValue(cxt, key, schema) {
220 parseCode({ ...cxt, schema, data: codegen_1._ `${cxt.data}[${key}]` });
222 function parseType(cxt) {
223 const { gen, schema, data } = cxt;
224 switch (schema.type) {
232 // TODO parse timestamp?
234 const vts = util_1.useFunc(gen, timestamp_1.default);
235 gen.if(codegen_1._ `!${vts}(${data})`, () => parsingError(cxt, codegen_1.str `invalid timestamp`));
243 const [min, max, maxDigits] = type_1.intRange[schema.type];
244 parseNumber(cxt, maxDigits);
245 gen.if(codegen_1._ `${data} < ${min} || ${data} > ${max}`, () => parsingError(cxt, codegen_1.str `integer out of range`));
249 function parseString(cxt) {
250 parseToken(cxt, '"');
251 parseWith(cxt, parseJson_1.parseJsonString);
253 function parseEnum(cxt) {
254 const { gen, data, schema } = cxt;
255 const enumSch = schema.enum;
256 parseToken(cxt, '"');
259 for (const value of enumSch) {
260 const valueStr = JSON.stringify(value).slice(1); // remove starting quote
261 gen.elseIf(codegen_1._ `${jsonSlice(valueStr.length)} === ${valueStr}`);
262 gen.assign(data, codegen_1.str `${value}`);
263 gen.add(names_1.default.jsonPos, valueStr.length);
266 jsonSyntaxError(cxt);
269 function parseNumber(cxt, maxDigits) {
272 gen.if(codegen_1._ `"-0123456789".indexOf(${jsonSlice(1)}) < 0`, () => jsonSyntaxError(cxt), () => parseWith(cxt, parseJson_1.parseJsonNumber, maxDigits));
274 function parseBooleanToken(bool, fail) {
276 const { gen, data } = cxt;
277 tryParseToken(cxt, `${bool}`, () => fail(cxt), () => gen.assign(data, bool));
280 function parseRef(cxt) {
281 const { gen, self, definitions, schema, schemaEnv } = cxt;
282 const { ref } = schema;
283 const refSchema = definitions[ref];
285 throw new ref_error_1.default("", ref, `No definition ${ref}`);
286 if (!ref_1.hasRef(refSchema))
287 return parseCode({ ...cxt, schema: refSchema });
288 const { root } = schemaEnv;
289 const sch = compileParser.call(self, new __1.SchemaEnv({ schema: refSchema, root }), definitions);
290 partialParse(cxt, getParser(gen, sch), true);
292 function getParser(gen, sch) {
294 ? gen.scopeValue("parse", { ref: sch.parse })
295 : codegen_1._ `${gen.scopeValue("wrapper", { ref: sch })}.parse`;
297 function parseEmpty(cxt) {
298 parseWith(cxt, parseJson_1.parseJson);
300 function parseWith(cxt, parseFunc, args) {
301 partialParse(cxt, util_1.useFunc(cxt.gen, parseFunc), args);
303 function partialParse(cxt, parseFunc, args) {
304 const { gen, data } = cxt;
305 gen.assign(data, codegen_1._ `${parseFunc}(${names_1.default.json}, ${names_1.default.jsonPos}${args ? codegen_1._ `, ${args}` : codegen_1.nil})`);
306 gen.assign(names_1.default.jsonPos, codegen_1._ `${parseFunc}.position`);
307 gen.if(codegen_1._ `${data} === undefined`, () => parsingError(cxt, codegen_1._ `${parseFunc}.message`));
309 function parseToken(cxt, tok) {
310 tryParseToken(cxt, tok, jsonSyntaxError);
312 function tryParseToken(cxt, tok, fail, success) {
314 const n = tok.length;
316 gen.if(codegen_1._ `${jsonSlice(n)} === ${tok}`, () => {
317 gen.add(names_1.default.jsonPos, n);
318 success === null || success === void 0 ? void 0 : success(cxt);
321 function skipWhitespace({ gen, char: c }) {
322 gen.code(codegen_1._ `while((${c}=${names_1.default.json}[${names_1.default.jsonPos}],${c}===" "||${c}==="\\n"||${c}==="\\r"||${c}==="\\t"))${names_1.default.jsonPos}++;`);
324 function jsonSlice(len) {
326 ? codegen_1._ `${names_1.default.json}[${names_1.default.jsonPos}]`
327 : codegen_1._ `${names_1.default.json}.slice(${names_1.default.jsonPos}, ${names_1.default.jsonPos}+${len})`;
329 function jsonSyntaxError(cxt) {
330 parsingError(cxt, codegen_1._ `"unexpected token " + ${names_1.default.json}[${names_1.default.jsonPos}]`);
332 function parsingError({ gen, parseName }, msg) {
333 gen.assign(codegen_1._ `${parseName}.message`, msg);
334 gen.assign(codegen_1._ `${parseName}.position`, names_1.default.jsonPos);
337 //# sourceMappingURL=parse.js.map