generateNeverTypeCheck()

generateNeverTypeCheck(_varName, ctx, customMessage?): CodeGenResult

Experimental

Generates the type check code for a never type. Never type rejects all values - nothing can satisfy it.

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Parameters

_varName: string

The variable name (unused, never always fails)

ctx: GeneratorContext

The generator context

customMessage?: string

Optional custom error message

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Returns: CodeGenResult

Generated code and updated context

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Since

2.0.0

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Example

const result = generateNeverTypeCheck("value", ctx);
// result.code = 'return "No value can satisfy never type";'