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denoland-deno/cli/lib/util/v8.rs

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// Copyright 2018-2025 the Deno authors. MIT license.
#[inline(always)]
pub fn construct_v8_flags(
default_v8_flags: &[String],
v8_flags: &[String],
env_v8_flags: Vec<String>,
) -> Vec<String> {
std::iter::once("UNUSED_BUT_NECESSARY_ARG0".to_owned())
.chain(default_v8_flags.iter().cloned())
.chain(env_v8_flags)
.chain(v8_flags.iter().cloned())
.collect::<Vec<_>>()
}