ts-simple-ast

Namespaces

Namespaces (or modules) can be retrieved from source files or other namespaces:

const namespaces = sourceFile.getNamespaces();
const namespace1 = sourceFile.getNamespace("Namespace1");
const firstNamespaceWithClass = sourceFile.getNamespace(n => n.getClasses().length > 0);

Most of the information you can get about namespaces is covered in other sections.

Note: Although it’s a compile error, you can also retreive namespaces from function bodies.

Add/Insert

Add or insert namespaces to a source file, namespace, or function like declarations by calling addNamespace(), addNamespaces(), insertNamespace(), or insertNamespaces().

const namespaceDeclaration = sourceFile.addNamespace({
    name: "NamespaceName"
});

Remove

Call .remove():

namespaceDeclaration.remove();

Module or namespace?

Check for the keyword you want:

namespaceDeclaration.hasModuleKeyword(); // returns: boolean
namespaceDeclaration.hasNamespaceKeyword(); // returns: boolean

Or set one or the other:

namespaceDeclaration.setHasModuleKeyword(); // optionally pass in a boolean
namespaceDeclaration.setHasNamespaceKeyword();

Or get the keyword:

namespaceDeclaration.getDeclarationTypeKeyword(); // returns: the module or namespace keyword

Unwrap

A namespace declaration can be replaced with its body using the .unwrap() method.

Given the following code:

namespace MyNamespace {
    function someFunction() {
    }

    class SomeClass {
    }
}

Calling .unwrap() on the namespace will change the code to the following:

function someFunction() {
}

class SomeClass {
}