Optional<Version> Version::parseVersionString(StringRef VersionString,
SourceLoc Loc,
DiagnosticEngine *Diags) {
Version TheVersion;
SmallString<16> digits;
llvm::raw_svector_ostream OS(digits);
SmallVector<std::pair<StringRef, SourceRange>, 5> SplitComponents;
// Skip over quote character in string literal.
if (VersionString.empty()) {
if (Diags)
Diags->diagnose(Loc, diag::empty_version_string);
return None;
}
splitVersionComponents(SplitComponents, VersionString, Loc, Diags);
uint64_t ComponentNumber;
bool isValidVersion = true;
for (size_t i = 0; i < SplitComponents.size(); ++i) {
StringRef SplitComponent;
SourceRange Range;
std::tie(SplitComponent, Range) = SplitComponents[i];
// Version components can't be empty.
if (SplitComponent.empty()) {
if (Diags)
Diags->diagnose(Range.Start, diag::empty_version_component);
isValidVersion = false;
continue;
}
// All other version components must be numbers.
if (!SplitComponent.getAsInteger(10, ComponentNumber)) {
TheVersion.Components.push_back(ComponentNumber);
continue;
} else {
if (Diags)
Diags->diagnose(Range.Start,
diag::version_component_not_number);
isValidVersion = false;
}
}
return isValidVersion ? Optional<Version>(TheVersion) : None;
}
Version Version::parseCompilerVersionString(
StringRef VersionString, SourceLoc Loc, DiagnosticEngine *Diags) {
Version CV;
SmallString<16> digits;
llvm::raw_svector_ostream OS(digits);
SmallVector<std::pair<StringRef, SourceRange>, 5> SplitComponents;
auto checkVersionComponent = [&](unsigned Component, SourceRange Range) {
unsigned limit = CV.Components.size() == 0 ? 9223371 : 999;
if (Component > limit) {
if (Diags)
Diags->diagnose(Range.Start,
diag::compiler_version_component_out_of_range, limit);
else
llvm_unreachable("Compiler version component out of range");
}
};
splitVersionComponents(SplitComponents, VersionString, Loc, Diags,
/*skipQuote=*/true);
uint64_t ComponentNumber;
for (size_t i = 0; i < SplitComponents.size(); ++i) {
StringRef SplitComponent;
SourceRange Range;
std::tie(SplitComponent, Range) = SplitComponents[i];
// Version components can't be empty.
if (SplitComponent.empty()) {
if (Diags)
Diags->diagnose(Range.Start, diag::empty_version_component);
else
llvm_unreachable("Found empty compiler version component");
continue;
}
// The second version component isn't used for comparison.
if (i == 1) {
if (!SplitComponent.equals("*")) {
if (Diags) {
Diags->diagnose(Range.Start, diag::unused_compiler_version_component)
.fixItReplaceChars(Range.Start, Range.End, "*");
} else {
llvm_unreachable("Expected * for second compiler version component");
}
}
CV.Components.push_back(0);
continue;
}
// All other version components must be numbers.
if (!SplitComponent.getAsInteger(10, ComponentNumber)) {
checkVersionComponent(ComponentNumber, Range);
CV.Components.push_back(ComponentNumber);
continue;
} else if (Diags) {
Diags->diagnose(Range.Start,
diag::version_component_not_number);
} else {
llvm_unreachable("Invalid character in _compiler_version condition");
}
}
if (CV.Components.size() > 5) {
if (Diags) {
Diags->diagnose(Loc, diag::compiler_version_too_many_components);
} else {
llvm_unreachable("Compiler version must not have more than 5 components");
}
}
return CV;
}
Optional<Version> Version::parseCompilerVersionString(
StringRef VersionString, SourceLoc Loc, DiagnosticEngine *Diags) {
Version CV;
SmallString<16> digits;
llvm::raw_svector_ostream OS(digits);
SmallVector<std::pair<StringRef, SourceRange>, 5> SplitComponents;
splitVersionComponents(SplitComponents, VersionString, Loc,
/*skipQuote=*/true);
uint64_t ComponentNumber;
bool isValidVersion = true;
auto checkVersionComponent = [&](unsigned Component, SourceRange Range) {
unsigned limit = CV.Components.size() == 0 ? 9223371 : 999;
if (Component > limit) {
if (Diags)
Diags->diagnose(Range.Start,
diag::compiler_version_component_out_of_range, limit);
isValidVersion = false;
}
};
for (size_t i = 0; i < SplitComponents.size(); ++i) {
StringRef SplitComponent;
SourceRange Range;
std::tie(SplitComponent, Range) = SplitComponents[i];
// Version components can't be empty.
if (SplitComponent.empty()) {
if (Diags)
Diags->diagnose(Range.Start, diag::empty_version_component);
isValidVersion = false;
continue;
}
// The second version component isn't used for comparison.
if (i == 1) {
if (!SplitComponent.equals("*")) {
if (Diags)
Diags->diagnose(Range.Start, diag::unused_compiler_version_component)
.fixItReplaceChars(Range.Start, Range.End, "*");
}
CV.Components.push_back(0);
continue;
}
// All other version components must be numbers.
if (!SplitComponent.getAsInteger(10, ComponentNumber)) {
checkVersionComponent(ComponentNumber, Range);
CV.Components.push_back(ComponentNumber);
continue;
} else {
if (Diags)
Diags->diagnose(Range.Start, diag::version_component_not_number);
isValidVersion = false;
}
}
if (CV.Components.size() > 5) {
if (Diags)
Diags->diagnose(Loc, diag::compiler_version_too_many_components);
isValidVersion = false;
}
return isValidVersion ? Optional<Version>(CV) : None;
}
