assert

Import from @varavel/vdl-plugin-sdk.

function assert(
   condition, 
   message, 
   position?
): asserts condition;

Ensures condition is truthy, otherwise throws a PluginError.

The asserts condition return type enables TypeScript narrowing in plugin code after this function returns.

Parameters

Parameter	Type	Description
`condition`	`unknown`	Condition that must hold.
`message`	`string`	Diagnostic message when the condition fails.
`position?`	`Position`	Optional source location for precise diagnostics.

asserts condition