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Extract extract_version_range

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This commit is contained in:
Lzu Tao 2020-07-19 10:58:06 +00:00
parent 2bcefa8d81
commit 99e3a3cdea
1 changed files with 34 additions and 32 deletions
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66
src/tools/compiletest/src/header.rs
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@ -133,7 +133,7 @@ pub fn from_reader<R: Read>(config: &Config, testfile: &Path, rdr: R) -> Self {
fn ignore_gdb(config: &Config, line: &str) -> bool {
if let Some(actual_version) = config.gdb_version {
if let Some(rest) = line.strip_prefix("min-gdb-version:").map(str::trim) {
let (start_ver, end_ver) = extract_gdb_version_range(rest);
let (start_ver, end_ver) = extract_version_range(rest, extract_gdb_version);
if start_ver != end_ver {
panic!("Expected single GDB version")
@ -142,7 +142,8 @@ fn ignore_gdb(config: &Config, line: &str) -> bool {
// version
return actual_version < start_ver;
} else if let Some(rest) = line.strip_prefix("ignore-gdb-version:").map(str::trim) {
let (min_version, max_version) = extract_gdb_version_range(rest);
let (min_version, max_version) =
extract_version_range(rest, extract_gdb_version);
if max_version < min_version {
panic!("Malformed GDB version range: max < min")
@ -154,36 +155,6 @@ fn ignore_gdb(config: &Config, line: &str) -> bool {
false
}
// Takes a directive of the form "<version1> [- <version2>]",
// returns the numeric representation of <version1> and <version2> as
// tuple: (<version1> as u32, <version2> as u32)
// If the <version2> part is omitted, the second component of the tuple
// is the same as <version1>.
fn extract_gdb_version_range(line: &str) -> (u32, u32) {
const ERROR_MESSAGE: &'static str = "Malformed GDB version directive";
let range_components = line
.split(&[' ', '-'][..])
.filter(|word| !word.is_empty())
.map(extract_gdb_version)
.skip_while(Option::is_none)
.take(3) // 3 or more = invalid, so take at most 3.
.collect::<Vec<Option<u32>>>();
match *range_components {
[v] => {
let v = v.unwrap();
(v, v)
}
[min, max] => {
let v_min = min.unwrap();
let v_max = max.expect(ERROR_MESSAGE);
(v_min, v_max)
}
_ => panic!(ERROR_MESSAGE),
}
}
fn ignore_lldb(config: &Config, line: &str) -> bool {
if let Some(actual_version) = config.lldb_version {
if let Some(min_version) = line.strip_prefix("min-lldb-version:").map(str::trim) {
@ -982,3 +953,34 @@ fn parse_normalization_string(line: &mut &str) -> Option<String> {
*line = &line[end + 1..];
Some(result)
}
// Takes a directive of the form "<version1> [- <version2>]",
// returns the numeric representation of <version1> and <version2> as
// tuple: (<version1> as u32, <version2> as u32)
// If the <version2> part is omitted, the second component of the tuple
// is the same as <version1>.
fn extract_version_range<F>(line: &str, parse: F) -> (u32, u32)
where
F: Fn(&str) -> Option<u32>,
{
let range_components = line
.split(&[' ', '-'][..])
.filter(|word| !word.is_empty())
.map(parse)
.skip_while(Option::is_none)
.take(3) // 3 or more = invalid, so take at most 3.
.collect::<Vec<Option<u32>>>();
match *range_components {
[v] => {
let v = v.unwrap();
(v, v)
}
[min, max] => {
let v_min = min.unwrap();
let v_max = max.expect("Malformed version directive");
(v_min, v_max)
}
_ => panic!("Malformed version directive"),
}
}