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use std::collections::BTreeSet;
use std::iter::FromIterator;
use serde::ser::Serializer;
use serde::Serialize;
use serde_starlark::LineComment;
#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Clone)]
pub struct WithOriginalConfigurations<T> {
pub value: T,
pub original_configurations: BTreeSet<String>,
}
#[derive(Serialize)]
#[serde(rename = "selects.NO_MATCHING_PLATFORM_TRIPLES")]
pub struct NoMatchingPlatformTriples;
impl<T> Serialize for WithOriginalConfigurations<T>
where
T: Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
let comment =
Vec::from_iter(self.original_configurations.iter().map(String::as_str)).join(", ");
LineComment::new(&self.value, &comment).serialize(serializer)
}
}
// We allow users to specify labels as keys to selects, but we need to identify when this is happening
// because we also allow things like "x86_64-unknown-linux-gnu" as keys, and these technically parse as labels
// (that parses as "//x86_64-unknown-linux-gnu:x86_64-unknown-linux-gnu").
//
// We don't expect any cfg-expressions or target triples to contain //,
// and all labels _can_ be written in a way that they contain //,
// so we use the presence of // as an indication something is a label.
pub fn looks_like_bazel_configuration_label(configuration: &str) -> bool {
configuration.contains("//")
}
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