--- /dev/null
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const types_1 = require("./types");
+const __1 = require("..");
+const codegen_1 = require("../codegen");
+const ref_error_1 = require("../ref_error");
+const names_1 = require("../names");
+const code_1 = require("../../vocabularies/code");
+const ref_1 = require("../../vocabularies/jtd/ref");
+const type_1 = require("../../vocabularies/jtd/type");
+const parseJson_1 = require("../../runtime/parseJson");
+const util_1 = require("../util");
+const timestamp_1 = require("../../runtime/timestamp");
+const genParse = {
+ elements: parseElements,
+ values: parseValues,
+ discriminator: parseDiscriminator,
+ properties: parseProperties,
+ optionalProperties: parseProperties,
+ enum: parseEnum,
+ type: parseType,
+ ref: parseRef,
+};
+function compileParser(sch, definitions) {
+ const _sch = __1.getCompilingSchema.call(this, sch);
+ if (_sch)
+ return _sch;
+ const { es5, lines } = this.opts.code;
+ const { ownProperties } = this.opts;
+ const gen = new codegen_1.CodeGen(this.scope, { es5, lines, ownProperties });
+ const parseName = gen.scopeName("parse");
+ const cxt = {
+ self: this,
+ gen,
+ schema: sch.schema,
+ schemaEnv: sch,
+ definitions,
+ data: names_1.default.data,
+ parseName,
+ char: gen.name("c"),
+ };
+ let sourceCode;
+ try {
+ this._compilations.add(sch);
+ sch.parseName = parseName;
+ parserFunction(cxt);
+ gen.optimize(this.opts.code.optimize);
+ const parseFuncCode = gen.toString();
+ sourceCode = `${gen.scopeRefs(names_1.default.scope)}return ${parseFuncCode}`;
+ const makeParse = new Function(`${names_1.default.scope}`, sourceCode);
+ const parse = makeParse(this.scope.get());
+ this.scope.value(parseName, { ref: parse });
+ sch.parse = parse;
+ }
+ catch (e) {
+ if (sourceCode)
+ this.logger.error("Error compiling parser, function code:", sourceCode);
+ delete sch.parse;
+ delete sch.parseName;
+ throw e;
+ }
+ finally {
+ this._compilations.delete(sch);
+ }
+ return sch;
+}
+exports.default = compileParser;
+const undef = codegen_1._ `undefined`;
+function parserFunction(cxt) {
+ const { gen, parseName, char } = cxt;
+ gen.func(parseName, codegen_1._ `${names_1.default.json}, ${names_1.default.jsonPos}, ${names_1.default.jsonPart}`, false, () => {
+ gen.let(names_1.default.data);
+ gen.let(char);
+ gen.assign(codegen_1._ `${parseName}.message`, undef);
+ gen.assign(codegen_1._ `${parseName}.position`, undef);
+ gen.assign(names_1.default.jsonPos, codegen_1._ `${names_1.default.jsonPos} || 0`);
+ gen.const(names_1.default.jsonLen, codegen_1._ `${names_1.default.json}.length`);
+ parseCode(cxt);
+ skipWhitespace(cxt);
+ gen.if(names_1.default.jsonPart, () => {
+ gen.assign(codegen_1._ `${parseName}.position`, names_1.default.jsonPos);
+ gen.return(names_1.default.data);
+ });
+ gen.if(codegen_1._ `${names_1.default.jsonPos} === ${names_1.default.jsonLen}`, () => gen.return(names_1.default.data));
+ jsonSyntaxError(cxt);
+ });
+}
+function parseCode(cxt) {
+ let form;
+ for (const key of types_1.jtdForms) {
+ if (key in cxt.schema) {
+ form = key;
+ break;
+ }
+ }
+ if (form)
+ parseNullable(cxt, genParse[form]);
+ else
+ parseEmpty(cxt);
+}
+const parseBoolean = parseBooleanToken(true, parseBooleanToken(false, jsonSyntaxError));
+function parseNullable(cxt, parseForm) {
+ const { gen, schema, data } = cxt;
+ if (!schema.nullable)
+ return parseForm(cxt);
+ tryParseToken(cxt, "null", parseForm, () => gen.assign(data, null));
+}
+function parseElements(cxt) {
+ const { gen, schema, data } = cxt;
+ parseToken(cxt, "[");
+ const ix = gen.let("i", 0);
+ gen.assign(data, codegen_1._ `[]`);
+ parseItems(cxt, "]", () => {
+ const el = gen.let("el");
+ parseCode({ ...cxt, schema: schema.elements, data: el });
+ gen.assign(codegen_1._ `${data}[${ix}++]`, el);
+ });
+}
+function parseValues(cxt) {
+ const { gen, schema, data } = cxt;
+ parseToken(cxt, "{");
+ gen.assign(data, codegen_1._ `{}`);
+ parseItems(cxt, "}", () => parseKeyValue(cxt, schema.values));
+}
+function parseItems(cxt, endToken, block) {
+ tryParseItems(cxt, endToken, block);
+ parseToken(cxt, endToken);
+}
+function tryParseItems(cxt, endToken, block) {
+ const { gen } = cxt;
+ gen.for(codegen_1._ `;${names_1.default.jsonPos}<${names_1.default.jsonLen} && ${jsonSlice(1)}!==${endToken};`, () => {
+ block();
+ tryParseToken(cxt, ",", () => gen.break(), hasItem);
+ });
+ function hasItem() {
+ tryParseToken(cxt, endToken, () => { }, jsonSyntaxError);
+ }
+}
+function parseKeyValue(cxt, schema) {
+ const { gen } = cxt;
+ const key = gen.let("key");
+ parseString({ ...cxt, data: key });
+ parseToken(cxt, ":");
+ parsePropertyValue(cxt, key, schema);
+}
+function parseDiscriminator(cxt) {
+ const { gen, data, schema } = cxt;
+ const { discriminator, mapping } = schema;
+ parseToken(cxt, "{");
+ gen.assign(data, codegen_1._ `{}`);
+ const startPos = gen.const("pos", names_1.default.jsonPos);
+ const value = gen.let("value");
+ const tag = gen.let("tag");
+ tryParseItems(cxt, "}", () => {
+ const key = gen.let("key");
+ parseString({ ...cxt, data: key });
+ parseToken(cxt, ":");
+ gen.if(codegen_1._ `${key} === ${discriminator}`, () => {
+ parseString({ ...cxt, data: tag });
+ gen.assign(codegen_1._ `${data}[${key}]`, tag);
+ gen.break();
+ }, () => parseEmpty({ ...cxt, data: value }) // can be discarded/skipped
+ );
+ });
+ gen.assign(names_1.default.jsonPos, startPos);
+ gen.if(codegen_1._ `${tag} === undefined`);
+ parsingError(cxt, codegen_1.str `discriminator tag not found`);
+ for (const tagValue in mapping) {
+ gen.elseIf(codegen_1._ `${tag} === ${tagValue}`);
+ parseSchemaProperties({ ...cxt, schema: mapping[tagValue] }, discriminator);
+ }
+ gen.else();
+ parsingError(cxt, codegen_1.str `discriminator value not in schema`);
+ gen.endIf();
+}
+function parseProperties(cxt) {
+ const { gen, data } = cxt;
+ parseToken(cxt, "{");
+ gen.assign(data, codegen_1._ `{}`);
+ parseSchemaProperties(cxt);
+}
+function parseSchemaProperties(cxt, discriminator) {
+ const { gen, schema, data } = cxt;
+ const { properties, optionalProperties, additionalProperties } = schema;
+ parseItems(cxt, "}", () => {
+ const key = gen.let("key");
+ parseString({ ...cxt, data: key });
+ parseToken(cxt, ":");
+ gen.if(false);
+ parseDefinedProperty(cxt, key, properties);
+ parseDefinedProperty(cxt, key, optionalProperties);
+ if (discriminator) {
+ gen.elseIf(codegen_1._ `${key} === ${discriminator}`);
+ const tag = gen.let("tag");
+ parseString({ ...cxt, data: tag }); // can be discarded, it is already assigned
+ }
+ gen.else();
+ if (additionalProperties) {
+ parseEmpty({ ...cxt, data: codegen_1._ `${data}[${key}]` });
+ }
+ else {
+ parsingError(cxt, codegen_1.str `property ${key} not allowed`);
+ }
+ gen.endIf();
+ });
+ if (properties) {
+ const hasProp = code_1.hasPropFunc(gen);
+ const allProps = codegen_1.and(...Object.keys(properties).map((p) => codegen_1._ `${hasProp}.call(${data}, ${p})`));
+ gen.if(codegen_1.not(allProps), () => parsingError(cxt, codegen_1.str `missing required properties`));
+ }
+}
+function parseDefinedProperty(cxt, key, schemas = {}) {
+ const { gen } = cxt;
+ for (const prop in schemas) {
+ gen.elseIf(codegen_1._ `${key} === ${prop}`);
+ parsePropertyValue(cxt, key, schemas[prop]);
+ }
+}
+function parsePropertyValue(cxt, key, schema) {
+ parseCode({ ...cxt, schema, data: codegen_1._ `${cxt.data}[${key}]` });
+}
+function parseType(cxt) {
+ const { gen, schema, data } = cxt;
+ switch (schema.type) {
+ case "boolean":
+ parseBoolean(cxt);
+ break;
+ case "string":
+ parseString(cxt);
+ break;
+ case "timestamp": {
+ // TODO parse timestamp?
+ parseString(cxt);
+ const vts = util_1.useFunc(gen, timestamp_1.default);
+ gen.if(codegen_1._ `!${vts}(${data})`, () => parsingError(cxt, codegen_1.str `invalid timestamp`));
+ break;
+ }
+ case "float32":
+ case "float64":
+ parseNumber(cxt);
+ break;
+ default: {
+ const [min, max, maxDigits] = type_1.intRange[schema.type];
+ parseNumber(cxt, maxDigits);
+ gen.if(codegen_1._ `${data} < ${min} || ${data} > ${max}`, () => parsingError(cxt, codegen_1.str `integer out of range`));
+ }
+ }
+}
+function parseString(cxt) {
+ parseToken(cxt, '"');
+ parseWith(cxt, parseJson_1.parseJsonString);
+}
+function parseEnum(cxt) {
+ const { gen, data, schema } = cxt;
+ const enumSch = schema.enum;
+ parseToken(cxt, '"');
+ // TODO loopEnum
+ gen.if(false);
+ for (const value of enumSch) {
+ const valueStr = JSON.stringify(value).slice(1); // remove starting quote
+ gen.elseIf(codegen_1._ `${jsonSlice(valueStr.length)} === ${valueStr}`);
+ gen.assign(data, codegen_1.str `${value}`);
+ gen.add(names_1.default.jsonPos, valueStr.length);
+ }
+ gen.else();
+ jsonSyntaxError(cxt);
+ gen.endIf();
+}
+function parseNumber(cxt, maxDigits) {
+ const { gen } = cxt;
+ skipWhitespace(cxt);
+ gen.if(codegen_1._ `"-0123456789".indexOf(${jsonSlice(1)}) < 0`, () => jsonSyntaxError(cxt), () => parseWith(cxt, parseJson_1.parseJsonNumber, maxDigits));
+}
+function parseBooleanToken(bool, fail) {
+ return (cxt) => {
+ const { gen, data } = cxt;
+ tryParseToken(cxt, `${bool}`, () => fail(cxt), () => gen.assign(data, bool));
+ };
+}
+function parseRef(cxt) {
+ const { gen, self, definitions, schema, schemaEnv } = cxt;
+ const { ref } = schema;
+ const refSchema = definitions[ref];
+ if (!refSchema)
+ throw new ref_error_1.default("", ref, `No definition ${ref}`);
+ if (!ref_1.hasRef(refSchema))
+ return parseCode({ ...cxt, schema: refSchema });
+ const { root } = schemaEnv;
+ const sch = compileParser.call(self, new __1.SchemaEnv({ schema: refSchema, root }), definitions);
+ partialParse(cxt, getParser(gen, sch), true);
+}
+function getParser(gen, sch) {
+ return sch.parse
+ ? gen.scopeValue("parse", { ref: sch.parse })
+ : codegen_1._ `${gen.scopeValue("wrapper", { ref: sch })}.parse`;
+}
+function parseEmpty(cxt) {
+ parseWith(cxt, parseJson_1.parseJson);
+}
+function parseWith(cxt, parseFunc, args) {
+ partialParse(cxt, util_1.useFunc(cxt.gen, parseFunc), args);
+}
+function partialParse(cxt, parseFunc, args) {
+ const { gen, data } = cxt;
+ gen.assign(data, codegen_1._ `${parseFunc}(${names_1.default.json}, ${names_1.default.jsonPos}${args ? codegen_1._ `, ${args}` : codegen_1.nil})`);
+ gen.assign(names_1.default.jsonPos, codegen_1._ `${parseFunc}.position`);
+ gen.if(codegen_1._ `${data} === undefined`, () => parsingError(cxt, codegen_1._ `${parseFunc}.message`));
+}
+function parseToken(cxt, tok) {
+ tryParseToken(cxt, tok, jsonSyntaxError);
+}
+function tryParseToken(cxt, tok, fail, success) {
+ const { gen } = cxt;
+ const n = tok.length;
+ skipWhitespace(cxt);
+ gen.if(codegen_1._ `${jsonSlice(n)} === ${tok}`, () => {
+ gen.add(names_1.default.jsonPos, n);
+ success === null || success === void 0 ? void 0 : success(cxt);
+ }, () => fail(cxt));
+}
+function skipWhitespace({ gen, char: c }) {
+ gen.code(codegen_1._ `while((${c}=${names_1.default.json}[${names_1.default.jsonPos}],${c}===" "||${c}==="\\n"||${c}==="\\r"||${c}==="\\t"))${names_1.default.jsonPos}++;`);
+}
+function jsonSlice(len) {
+ return len === 1
+ ? codegen_1._ `${names_1.default.json}[${names_1.default.jsonPos}]`
+ : codegen_1._ `${names_1.default.json}.slice(${names_1.default.jsonPos}, ${names_1.default.jsonPos}+${len})`;
+}
+function jsonSyntaxError(cxt) {
+ parsingError(cxt, codegen_1._ `"unexpected token " + ${names_1.default.json}[${names_1.default.jsonPos}]`);
+}
+function parsingError({ gen, parseName }, msg) {
+ gen.assign(codegen_1._ `${parseName}.message`, msg);
+ gen.assign(codegen_1._ `${parseName}.position`, names_1.default.jsonPos);
+ gen.return(undef);
+}
+//# sourceMappingURL=parse.js.map
\ No newline at end of file
projects / dotfiles / .git / blobdiff