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node_modules/expect/build/jestMatchersObject.js

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+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+exports.setMatchers = exports.getMatchers = exports.setState = exports.getState = exports.INTERNAL_MATCHER_FLAG = void 0;
+
+var _asymmetricMatchers = require('./asymmetricMatchers');
+
+var Symbol = global['jest-symbol-do-not-touch'] || global.Symbol;
+// Global matchers object holds the list of available matchers and
+// the state, that can hold matcher specific values that change over time.
+const JEST_MATCHERS_OBJECT = Symbol.for('$$jest-matchers-object'); // Notes a built-in/internal Jest matcher.
+// Jest may override the stack trace of Errors thrown by internal matchers.
+
+const INTERNAL_MATCHER_FLAG = Symbol.for('$$jest-internal-matcher');
+exports.INTERNAL_MATCHER_FLAG = INTERNAL_MATCHER_FLAG;
+
+if (!global[JEST_MATCHERS_OBJECT]) {
+  Object.defineProperty(global, JEST_MATCHERS_OBJECT, {
+    value: {
+      matchers: Object.create(null),
+      state: {
+        assertionCalls: 0,
+        expectedAssertionsNumber: null,
+        isExpectingAssertions: false,
+        suppressedErrors: [] // errors that are not thrown immediately.
+      }
+    }
+  });
+}
+
+const getState = () => global[JEST_MATCHERS_OBJECT].state;
+
+exports.getState = getState;
+
+const setState = state => {
+  Object.assign(global[JEST_MATCHERS_OBJECT].state, state);
+};
+
+exports.setState = setState;
+
+const getMatchers = () => global[JEST_MATCHERS_OBJECT].matchers;
+
+exports.getMatchers = getMatchers;
+
+const setMatchers = (matchers, isInternal, expect) => {
+  Object.keys(matchers).forEach(key => {
+    const matcher = matchers[key];
+    Object.defineProperty(matcher, INTERNAL_MATCHER_FLAG, {
+      value: isInternal
+    });
+
+    if (!isInternal) {
+      // expect is defined
+      class CustomMatcher extends _asymmetricMatchers.AsymmetricMatcher {
+        constructor(inverse = false, ...sample) {
+          super(sample);
+          this.inverse = inverse;
+        }
+
+        asymmetricMatch(other) {
+          const _ref = matcher(other, ...this.sample),
+            pass = _ref.pass;
+
+          return this.inverse ? !pass : pass;
+        }
+
+        toString() {
+          return `${this.inverse ? 'not.' : ''}${key}`;
+        }
+
+        getExpectedType() {
+          return 'any';
+        }
+
+        toAsymmetricMatcher() {
+          return `${this.toString()}<${this.sample.join(', ')}>`;
+        }
+      }
+
+      expect[key] = (...sample) => new CustomMatcher(false, ...sample);
+
+      if (!expect.not) {
+        expect.not = {};
+      }
+
+      expect.not[key] = (...sample) => new CustomMatcher(true, ...sample);
+    }
+  });
+  Object.assign(global[JEST_MATCHERS_OBJECT].matchers, matchers);
+};
+
+exports.setMatchers = setMatchers;