refactor(oas3): internally store the OpenAPI version

Author: kylef

packages/openapi3-parser/lib/context.js

@@ -3,6 +3,11 @@ const State = require('./state.js');
 class Context {
   constructor(namespace, options) {
     this.namespace = namespace;
+    this.openapiVersion = {
+      major: 3,
+      minor: 0,
+      patch: 0,
+    };
     this.options = options || {};
 
     if (this.options.generateSourceMap === undefined) {

packages/openapi3-parser/lib/parser/oas/parseOpenAPIObject.js

@@ -56,7 +56,7 @@ function parseOASObject(context, object) {
   ]);
 
   const parseOASObject = pipeParseResult(namespace,
-    parseObject(context, name, parseMember, requiredKeys, ['components']),
+    parseObject(context, name, parseMember, requiredKeys, ['openapi', 'components']),
     (object) => {
       const api = object.get('info');
       const hosts = object.get('servers');

packages/openapi3-parser/lib/parser/openapi.js

@@ -21,6 +21,11 @@ function parseOpenAPI(context, openapi) {
     return new namespace.elements.ParseResult([createError(namespace, `OpenAPI version does not contain valid semantic version string '${openapi.value.toValue()}'`, openapi.value)]);
   }
 
+  /* eslint-disable no-param-reassign */
+  context.openapiVersion.major = Number(versionInfo[1]);
+  context.openapiVersion.minor = Number(versionInfo[2]);
+  context.openapiVersion.patch = Number(versionInfo[3]);
+
   if (parseInt(versionInfo[1], 10) !== supportedMajorVersion) {
     return new namespace.elements.ParseResult([createError(namespace, `Unsupported OpenAPI version '${openapi.value.toValue()}'`, openapi.value)]);
   }
@@ -29,7 +34,6 @@ function parseOpenAPI(context, openapi) {
     return new namespace.elements.ParseResult([openapi, createWarning(namespace, `Version '${openapi.value.toValue()}' is not fully supported`, openapi.value)]);
   }
 
-
   return new namespace.elements.ParseResult([openapi]);
 }
 

packages/openapi3-parser/test/unit/parser/openapi-test.js

@@ -63,4 +63,14 @@ describe('#parseOpenAPI', () => {
     expect(parseResult).to.contain.warning("Version '3.1.0' is not fully supported");
     expect(parseResult.get(0).value.toValue()).to.equal('3.1.0');
   });
+
+  it('adds the version to context', () => {
+    const openapi = new namespace.elements.Member('openapi', '3.1.2');
+
+    parseOpenAPI(context, openapi);
+
+    expect(context.openapiVersion.major).to.equal(3);
+    expect(context.openapiVersion.minor).to.equal(1);
+    expect(context.openapiVersion.patch).to.equal(2);
+  });
 });