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use super::*;
pub struct MethodSignature {
pub params: Vec<MethodParam>,
pub return_sig: Option<Signature>,
pub return_param: Option<Param>,
}
#[derive(Clone)]
pub struct MethodParam {
pub param: Param,
pub signature: Signature,
}
impl MethodSignature {
pub fn include_dependencies(&self, include: TypeInclude) {
if let Some(return_sig) = &self.return_sig {
return_sig.kind.include_definition(include);
}
for param in &self.params {
param.signature.kind.include_definition(include);
}
}
pub fn method_features(&self) -> BTreeSet<&'static str> {
let mut features = std::collections::BTreeSet::new();
let mut keys = std::collections::HashSet::new();
self.return_sig
.iter()
.for_each(|def| def.kind.method_features(&mut features, &mut keys));
self.params
.iter()
.for_each(|def| def.signature.kind.method_features(&mut features, &mut keys));
features
}
pub fn struct_features(
&self,
features: &mut BTreeSet<&'static str>,
keys: &mut std::collections::HashSet<Row>,
) {
self.return_sig
.iter()
.for_each(|def| def.kind.struct_features(features, keys));
self.params
.iter()
.for_each(|def| def.signature.kind.struct_features(features, keys));
}
pub fn kind(&self) -> SignatureKind {
if self
.return_param
.as_ref()
.map_or(false, |param| param.has_alternate_success_code())
{
return SignatureKind::PreserveSig;
}
if let Some(return_sig) = &self.return_sig {
match &return_sig.kind {
ElementType::HRESULT => {
if self.params.len() >= 2 {
let guid = &self.params[self.params.len() - 2];
let object = &self.params[self.params.len() - 1];
if guid.signature.kind == ElementType::GUID
&& !guid.param.flags().output()
&& object.signature.kind == ElementType::Void
&& object.param.is_com_out_ptr()
{
if object.param.is_optional() {
return SignatureKind::QueryOptional;
} else {
return SignatureKind::Query;
}
}
}
if self.params.last().map_or(false, |param| param.is_retval())
&& self.params[..self.params.len() - 1].iter().all(|param| {
let flags = param.param.flags();
flags.input() && !flags.output()
})
{
return SignatureKind::ResultValue;
}
return SignatureKind::ResultVoid;
}
ElementType::TypeDef(def) if def.type_name() == TypeName::NTSTATUS => {
return SignatureKind::ResultVoid;
}
_ if return_sig.is_udt() => {
return SignatureKind::ReturnStruct;
}
_ => return SignatureKind::PreserveSig,
}
}
SignatureKind::PreserveSig
}
pub fn size(&self) -> usize {
self.params
.iter()
.fold(0, |sum, param| sum + param.signature.size())
}
}
impl MethodParam {
fn is_retval(&self) -> bool {
if self.signature.pointers == 0 {
return false;
}
let flags = self.param.flags();
if flags.input() || !flags.output() || self.param.array_info() {
return false;
}
match &self.signature.kind {
ElementType::Void => false,
ElementType::TypeDef(def) => def.kind() != TypeKind::Delegate,
_ => true,
}
}
pub fn is_convertible(&self) -> bool {
self.param.is_input()
&& !self.signature.is_array
&& self.signature.pointers == 0
&& self.signature.kind.is_convertible()
}
}