Function accessKind

test/fixtures/snapshot/typescript.js:19581–19616

(node)

        AccessKind[AccessKind["ReadWrite"] = 2] = "ReadWrite";
    })(AccessKind || (AccessKind = {}));
    function accessKind(node) {
        var parent = node.parent;
        if (!parent)
            return 0 /* AccessKind.Read */;
        switch (parent.kind) {
            case 212 /* SyntaxKind.ParenthesizedExpression */:
                return accessKind(parent);
            case 220 /* SyntaxKind.PostfixUnaryExpression */:
            case 219 /* SyntaxKind.PrefixUnaryExpression */:
                var operator = parent.operator;
                return operator === 45 /* SyntaxKind.PlusPlusToken */ || operator === 46 /* SyntaxKind.MinusMinusToken */ ? writeOrReadWrite() : 0 /* AccessKind.Read */;
            case 221 /* SyntaxKind.BinaryExpression */:
                var _a = parent, left = _a.left, operatorToken = _a.operatorToken;
                return left === node && isAssignmentOperator(operatorToken.kind) ?
                    operatorToken.kind === 63 /* SyntaxKind.EqualsToken */ ? 1 /* AccessKind.Write */ : writeOrReadWrite()
                    : 0 /* AccessKind.Read */;
            case 206 /* SyntaxKind.PropertyAccessExpression */:
                return parent.name !== node ? 0 /* AccessKind.Read */ : accessKind(parent);
            case 296 /* SyntaxKind.PropertyAssignment */: {
                var parentAccess = accessKind(parent.parent);
                // In `({ x: varname }) = { x: 1 }`, the left `x` is a read, the right `x` is a write.
                return node === parent.name ? reverseAccessKind(parentAccess) : parentAccess;
            }
            case 297 /* SyntaxKind.ShorthandPropertyAssignment */:
                // Assume it's the local variable being accessed, since we don't check public properties for --noUnusedLocals.
                return node === parent.objectAssignmentInitializer ? 0 /* AccessKind.Read */ : accessKind(parent.parent);
            case 204 /* SyntaxKind.ArrayLiteralExpression */:
                return accessKind(parent);
            default:
                return 0 /* AccessKind.Read */;
        }
        function writeOrReadWrite() {
            // If grandparent is not an ExpressionStatement, this is used as an expression in addition to having a side effect.
            return parent.parent && walkUpParenthesizedExpressions(parent.parent).kind === 238 /* SyntaxKind.ExpressionStatement */ ? 1 /* AccessKind.Write */ : 2 /* AccessKind.ReadWrite */;
        }
    }
    function reverseAccessKind(a) {
        switch (a) {
            case 0 /* AccessKind.Read */: