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use crate::*;
use squote::{quote, TokenStream};
use std::collections::*;
#[derive(Debug)]
pub struct RequiredInterface {
pub name: TypeName,
pub methods: Vec<Method>,
pub kind: InterfaceKind,
}
impl PartialEq for RequiredInterface {
fn eq(&self, other: &Self) -> bool {
self.name == other.name
}
}
impl Eq for RequiredInterface {}
impl PartialOrd for RequiredInterface {
fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
Some(self.cmp(other))
}
}
impl Ord for RequiredInterface {
fn cmp(&self, other: &Self) -> std::cmp::Ordering {
self.name.cmp(&other.name)
}
}
impl RequiredInterface {
fn from_type_def(
def: &winmd::TypeDef,
calling_namespace: &'static str,
kind: InterfaceKind,
) -> Self {
let name = TypeName::from_type_def(def, calling_namespace);
Self::from_type_name_and_kind(name, kind, calling_namespace)
}
fn from_type_name_and_kind(
name: TypeName,
kind: InterfaceKind,
calling_namespace: &'static str,
) -> Self {
let methods = name
.def
.methods()
.enumerate()
.map(|(count, method)| {
Method::from_method_def(
&method,
(count + 6) as u32,
&name.generics,
calling_namespace,
)
})
.collect();
Self {
name,
methods,
kind,
}
}
pub fn gen_conversions(&self, from: &TokenStream, constraints: &TokenStream) -> TokenStream {
match self.kind {
InterfaceKind::Default => {
let into = self.name.gen();
quote! {
impl<#constraints> ::std::convert::From<#from> for #into {
fn from(value: #from) -> Self {
unsafe { ::std::mem::transmute(value) }
}
}
impl<#constraints> ::std::convert::From<&#from> for #into {
fn from(value: &#from) -> Self {
::std::convert::From::from(::std::clone::Clone::clone(value))
}
}
impl<'a, #constraints> ::std::convert::Into<::windows::Param<'a, #into>> for #from {
fn into(self) -> ::windows::Param<'a, #into> {
::windows::Param::Owned(::std::convert::Into::<#into>::into(self))
}
}
impl<'a, #constraints> ::std::convert::Into<::windows::Param<'a, #into>> for &'a #from {
fn into(self) -> ::windows::Param<'a, #into> {
::windows::Param::Owned(::std::convert::Into::<#into>::into(::std::clone::Clone::clone(self)))
}
}
}
}
InterfaceKind::NonDefault => {
let into = self.name.gen();
quote! {
impl<#constraints> ::std::convert::From<#from> for #into {
fn from(value: #from) -> Self {
::std::convert::From::from(&value)
}
}
impl<#constraints> ::std::convert::From<&#from> for #into {
fn from(value: &#from) -> Self {
::windows::Interface::cast(value).unwrap()
}
}
impl<'a, #constraints> ::std::convert::Into<::windows::Param<'a, #into>> for #from {
fn into(self) -> ::windows::Param<'a, #into> {
::windows::Param::Owned(::std::convert::Into::<#into>::into(self))
}
}
impl<'a, #constraints> ::std::convert::Into<::windows::Param<'a, #into>> for &'a #from {
fn into(self) -> ::windows::Param<'a, #into> {
::windows::Param::Owned(::std::convert::Into::<#into>::into(::std::clone::Clone::clone(self)))
}
}
}
}
_ => TokenStream::new(),
}
}
}
pub fn add_type(
vec: &mut Vec<RequiredInterface>,
def: &winmd::TypeDef,
calling_namespace: &'static str,
kind: InterfaceKind,
) {
vec.push(RequiredInterface::from_type_def(
def,
calling_namespace,
kind,
));
}
pub fn add_dependencies(
vec: &mut Vec<RequiredInterface>,
name: &TypeName,
calling_namespace: &'static str,
strip_default: bool,
) {
for required in name.def.interfaces() {
let is_default = required.is_default();
let required = required.interface();
let required_name =
TypeName::from_type_def_or_ref(&required, &name.generics, calling_namespace);
if let Some(index) = vec.iter().position(|i| i.name == required_name) {
if !strip_default && vec[index].kind == InterfaceKind::NonDefault && is_default {
vec[index].kind = InterfaceKind::Default;
}
} else {
let kind = if !strip_default && is_default {
InterfaceKind::Default
} else {
InterfaceKind::NonDefault
};
add_dependencies(vec, &required_name, calling_namespace, strip_default);
vec.push(RequiredInterface::from_type_name_and_kind(
required_name,
kind,
calling_namespace,
));
}
}
}
pub fn gen_method(interfaces: &Vec<RequiredInterface>) -> TokenStream {
let mut tokens = TokenStream::new();
for interface in interfaces {
for method in &interface.methods {
tokens.combine(&method.gen_method(&interface.name, interface.kind));
}
}
tokens
}
pub fn rename_collisions(interfaces: &mut Vec<RequiredInterface>) {
interfaces.sort();
let mut count = BTreeMap::new();
for interface in interfaces {
for method in &mut interface.methods {
let count = count.entry(&method.name).or_insert(0);
*count += 1;
method.overload = *count;
}
}
}