Function createSuperAccessVariableStatement

test/fixtures/snapshot/typescript.js:96434–96476

Creates a variable named `_super` with accessor properties for the given property names.

(factory, resolver, node, names)

    ts.transformES2017 = transformES2017;
    /** Creates a variable named `_super` with accessor properties for the given property names. */
    function createSuperAccessVariableStatement(factory, resolver, node, names) {
        // Create a variable declaration with a getter/setter (if binding) definition for each name:
        //   const _super = Object.create(null, { x: { get: () => super.x, set: (v) => super.x = v }, ... });
        var hasBinding = (resolver.getNodeCheckFlags(node) & 4096 /* NodeCheckFlags.AsyncMethodWithSuperBinding */) !== 0;
        var accessors = [];
        names.forEach(function (_, key) {
            var name = ts.unescapeLeadingUnderscores(key);
            var getterAndSetter = [];
            getterAndSetter.push(factory.createPropertyAssignment("get", factory.createArrowFunction(
            /* modifiers */ undefined, 
            /* typeParameters */ undefined, 
            /* parameters */ [], 
            /* type */ undefined, 
            /* equalsGreaterThanToken */ undefined, ts.setEmitFlags(factory.createPropertyAccessExpression(ts.setEmitFlags(factory.createSuper(), 4 /* EmitFlags.NoSubstitution */), name), 4 /* EmitFlags.NoSubstitution */))));
            if (hasBinding) {
                getterAndSetter.push(factory.createPropertyAssignment("set", factory.createArrowFunction(
                /* modifiers */ undefined, 
                /* typeParameters */ undefined, 
                /* parameters */ [
                    factory.createParameterDeclaration(
                    /* decorators */ undefined, 
                    /* modifiers */ undefined, 
                    /* dotDotDotToken */ undefined, "v", 
                    /* questionToken */ undefined, 
                    /* type */ undefined, 
                    /* initializer */ undefined)
                ], 
                /* type */ undefined, 
                /* equalsGreaterThanToken */ undefined, factory.createAssignment(ts.setEmitFlags(factory.createPropertyAccessExpression(ts.setEmitFlags(factory.createSuper(), 4 /* EmitFlags.NoSubstitution */), name), 4 /* EmitFlags.NoSubstitution */), factory.createIdentifier("v")))));
            }
            accessors.push(factory.createPropertyAssignment(name, factory.createObjectLiteralExpression(getterAndSetter)));
        });
        return factory.createVariableStatement(
        /* modifiers */ undefined, factory.createVariableDeclarationList([
            factory.createVariableDeclaration(factory.createUniqueName("_super", 16 /* GeneratedIdentifierFlags.Optimistic */ | 32 /* GeneratedIdentifierFlags.FileLevel */), 
            /*exclamationToken*/ undefined, 
            /* type */ undefined, factory.createCallExpression(factory.createPropertyAccessExpression(factory.createIdentifier("Object"), "create"), 
            /* typeArguments */ undefined, [
                factory.createNull(),
                factory.createObjectLiteralExpression(accessors, /* multiline */ true)
            ]))
        ], 2 /* NodeFlags.Const */));
    }
    ts.createSuperAccessVariableStatement = createSuperAccessVariableStatement;
})(ts || (ts = {}));
/*@internal*/