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Runtime for ANTLR Kotlin

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// Copyright 2017-present Strumenta and contributors, licensed under Apache 2.0.
// Copyright 2024-present Strumenta and contributors, licensed under BSD 3-Clause.
package com.strumenta.antlrkotlin.runtime

import kotlin.contracts.ExperimentalContracts
import kotlin.contracts.contract

/**
 * Throws an [AssertionError] if the [condition] is `false`.
 */
@OptIn(ExperimentalContracts::class)
@Suppress("NOTHING_TO_INLINE", "KotlinRedundantDiagnosticSuppress")
internal inline fun assert(condition: Boolean, message: String? = null) {
  contract {
    returns() implies condition
  }

  if (!condition) {
    throw AssertionError(message)
  }
}