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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /third_party/rust/semver/src/eval.rs | |
parent | Initial commit. (diff) | |
download | firefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | third_party/rust/semver/src/eval.rs | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/third_party/rust/semver/src/eval.rs b/third_party/rust/semver/src/eval.rs new file mode 100644 index 0000000000..e6e38949a9 --- /dev/null +++ b/third_party/rust/semver/src/eval.rs @@ -0,0 +1,181 @@ +use crate::{Comparator, Op, Version, VersionReq}; + +pub(crate) fn matches_req(req: &VersionReq, ver: &Version) -> bool { + for cmp in &req.comparators { + if !matches_impl(cmp, ver) { + return false; + } + } + + if ver.pre.is_empty() { + return true; + } + + // If a version has a prerelease tag (for example, 1.2.3-alpha.3) then it + // will only be allowed to satisfy req if at least one comparator with the + // same major.minor.patch also has a prerelease tag. + for cmp in &req.comparators { + if pre_is_compatible(cmp, ver) { + return true; + } + } + + false +} + +pub(crate) fn matches_comparator(cmp: &Comparator, ver: &Version) -> bool { + matches_impl(cmp, ver) && (ver.pre.is_empty() || pre_is_compatible(cmp, ver)) +} + +fn matches_impl(cmp: &Comparator, ver: &Version) -> bool { + match cmp.op { + Op::Exact | Op::Wildcard => matches_exact(cmp, ver), + Op::Greater => matches_greater(cmp, ver), + Op::GreaterEq => matches_exact(cmp, ver) || matches_greater(cmp, ver), + Op::Less => matches_less(cmp, ver), + Op::LessEq => matches_exact(cmp, ver) || matches_less(cmp, ver), + Op::Tilde => matches_tilde(cmp, ver), + Op::Caret => matches_caret(cmp, ver), + #[cfg(no_non_exhaustive)] + Op::__NonExhaustive => unreachable!(), + } +} + +fn matches_exact(cmp: &Comparator, ver: &Version) -> bool { + if ver.major != cmp.major { + return false; + } + + if let Some(minor) = cmp.minor { + if ver.minor != minor { + return false; + } + } + + if let Some(patch) = cmp.patch { + if ver.patch != patch { + return false; + } + } + + ver.pre == cmp.pre +} + +fn matches_greater(cmp: &Comparator, ver: &Version) -> bool { + if ver.major != cmp.major { + return ver.major > cmp.major; + } + + match cmp.minor { + None => return false, + Some(minor) => { + if ver.minor != minor { + return ver.minor > minor; + } + } + } + + match cmp.patch { + None => return false, + Some(patch) => { + if ver.patch != patch { + return ver.patch > patch; + } + } + } + + ver.pre > cmp.pre +} + +fn matches_less(cmp: &Comparator, ver: &Version) -> bool { + if ver.major != cmp.major { + return ver.major < cmp.major; + } + + match cmp.minor { + None => return false, + Some(minor) => { + if ver.minor != minor { + return ver.minor < minor; + } + } + } + + match cmp.patch { + None => return false, + Some(patch) => { + if ver.patch != patch { + return ver.patch < patch; + } + } + } + + ver.pre < cmp.pre +} + +fn matches_tilde(cmp: &Comparator, ver: &Version) -> bool { + if ver.major != cmp.major { + return false; + } + + if let Some(minor) = cmp.minor { + if ver.minor != minor { + return false; + } + } + + if let Some(patch) = cmp.patch { + if ver.patch != patch { + return ver.patch > patch; + } + } + + ver.pre >= cmp.pre +} + +fn matches_caret(cmp: &Comparator, ver: &Version) -> bool { + if ver.major != cmp.major { + return false; + } + + let minor = match cmp.minor { + None => return true, + Some(minor) => minor, + }; + + let patch = match cmp.patch { + None => { + if cmp.major > 0 { + return ver.minor >= minor; + } else { + return ver.minor == minor; + } + } + Some(patch) => patch, + }; + + if cmp.major > 0 { + if ver.minor != minor { + return ver.minor > minor; + } else if ver.patch != patch { + return ver.patch > patch; + } + } else if minor > 0 { + if ver.minor != minor { + return false; + } else if ver.patch != patch { + return ver.patch > patch; + } + } else if ver.minor != minor || ver.patch != patch { + return false; + } + + ver.pre >= cmp.pre +} + +fn pre_is_compatible(cmp: &Comparator, ver: &Version) -> bool { + cmp.major == ver.major + && cmp.minor == Some(ver.minor) + && cmp.patch == Some(ver.patch) + && !cmp.pre.is_empty() +} |