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Add minicore smoke test

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This commit is contained in:
hkalbasi 2023-04-18 17:38:38 +03:30
parent 9b835f334f
commit f05f7ab082
4 changed files with 97 additions and 24 deletions
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21
crates/test-utils/src/fixture.rs
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@ -254,10 +254,19 @@ impl FixtureWithProjectMeta {
}
impl MiniCore {
const RAW_SOURCE: &str = include_str!("./minicore.rs");
fn has_flag(&self, flag: &str) -> bool {
self.activated_flags.iter().any(|it| it == flag)
}
pub fn from_flags<'a>(flags: impl IntoIterator<Item = &'a str>) -> Self {
MiniCore {
activated_flags: flags.into_iter().map(|x| x.to_owned()).collect(),
valid_flags: Vec::new(),
}
}
#[track_caller]
fn assert_valid_flag(&self, flag: &str) {
if !self.valid_flags.iter().any(|it| it == flag) {
@ -278,13 +287,21 @@ impl MiniCore {
res
}
pub fn available_flags() -> impl Iterator<Item = &'static str> {
let lines = MiniCore::RAW_SOURCE.split_inclusive('\n');
lines
.map_while(|x| x.strip_prefix("//!"))
.skip_while(|line| !line.contains("Available flags:"))
.skip(1)
.map(|x| x.split_once(':').unwrap().0.trim())
}
/// Strips parts of minicore.rs which are flagged by inactive flags.
///
/// This is probably over-engineered to support flags dependencies.
pub fn source_code(mut self) -> String {
let mut buf = String::new();
let raw_mini_core = include_str!("./minicore.rs");
let mut lines = raw_mini_core.split_inclusive('\n');
let mut lines = MiniCore::RAW_SOURCE.split_inclusive('\n');
let mut implications = Vec::new();