paradiego

node_modules/jsx-ast-utils/lib/values/expressions/BinaryExpression.js

@@ -0,0 +1,78 @@
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = extractValueFromBinaryExpression;
+/**
+ * Extractor function for a BinaryExpression type value node.
+ * A binary expression has a left and right side separated by an operator
+ * such as `a + b`.
+ *
+ * @param - value - AST Value object with type `BinaryExpression`
+ * @returns - The extracted value converted to correct type.
+ */
+function extractValueFromBinaryExpression(value) {
+  // eslint-disable-next-line global-require
+  var getValue = require('.').default;
+  var operator = value.operator,
+      left = value.left,
+      right = value.right;
+
+  var leftVal = getValue(left);
+  var rightVal = getValue(right);
+
+  switch (operator) {
+    case '==':
+      return leftVal == rightVal; // eslint-disable-line
+    case '!=':
+      return leftVal != rightVal; // eslint-disable-line
+    case '===':
+      return leftVal === rightVal;
+    case '!==':
+      return leftVal !== rightVal;
+    case '<':
+      return leftVal < rightVal;
+    case '<=':
+      return leftVal <= rightVal;
+    case '>':
+      return leftVal > rightVal;
+    case '>=':
+      return leftVal >= rightVal;
+    case '<<':
+      return leftVal << rightVal; // eslint-disable-line no-bitwise
+    case '>>':
+      return leftVal >> rightVal; // eslint-disable-line no-bitwise
+    case '>>>':
+      return leftVal >>> rightVal; // eslint-disable-line no-bitwise
+    case '+':
+      return leftVal + rightVal;
+    case '-':
+      return leftVal - rightVal;
+    case '*':
+      return leftVal * rightVal;
+    case '/':
+      return leftVal / rightVal;
+    case '%':
+      return leftVal % rightVal;
+    case '|':
+      return leftVal | rightVal; // eslint-disable-line no-bitwise
+    case '^':
+      return leftVal ^ rightVal; // eslint-disable-line no-bitwise
+    case '&':
+      return leftVal & rightVal; // eslint-disable-line no-bitwise
+    case 'in':
+      try {
+        return leftVal in rightVal;
+      } catch (err) {
+        return false;
+      }
+    case 'instanceof':
+      if (typeof rightVal !== 'function') {
+        return false;
+      }
+      return leftVal instanceof rightVal;
+    default:
+      return undefined;
+  }
+}