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use crate::*;
pub fn gen_method_constraints(params: &[MethodParam], gen: &Gen) -> TokenStream {
let mut tokens = TokenStream::with_capacity();
for (position, param) in params.iter().enumerate() {
if param.is_convertible() {
let name = format_token!("Param{}", position);
let into = gen_name(¶m.signature.kind, gen);
tokens.combine("e! { #name: ::windows::core::IntoParam<'a, #into>, });
}
}
if !tokens.is_empty() {
quote! { 'a, #tokens }
} else {
TokenStream::new()
}
}
pub fn gen_win32_param(param: &MethodParam, gen: &Gen) -> TokenStream {
gen_sig_with_const(¶m.signature, gen, !param.param.flags().output())
}
pub fn gen_sig(sig: &Signature, gen: &Gen) -> TokenStream {
gen_sig_with_const(sig, gen, sig.is_const)
}
fn gen_sig_with_const(sig: &Signature, gen: &Gen, is_const: bool) -> TokenStream {
let mut tokens = TokenStream::with_capacity();
for _ in 0..sig.pointers {
if is_const {
tokens.combine("e! { *const });
} else {
tokens.combine("e! { *mut });
}
}
let kind = gen_name(&sig.kind, gen);
if sig.kind.is_nullable() {
tokens.combine("e! {
::core::option::Option<#kind>
});
} else {
tokens.combine(&kind)
}
tokens
}
pub fn gen_abi_sig(sig: &Signature, gen: &Gen) -> TokenStream {
let mut tokens = TokenStream::with_capacity();
for _ in 0..sig.pointers {
if sig.is_const {
tokens.combine("e! { *const });
} else {
tokens.combine("e! { *mut });
}
}
tokens.combine(&gen_abi_type_name(&sig.kind, gen));
tokens
}
pub fn interface_method_features(def: &TypeDef, sig: &MethodSignature, gen: &Gen) -> BTreeSet<&'static str> {
if gen.root.is_empty() {
return BTreeSet::new();
}
let mut features = sig.method_features();
features.insert(def.namespace());
features
}
pub fn method_features(sig: &MethodSignature, gen: &Gen) -> TokenStream {
if gen.root.is_empty() {
return TokenStream::new();
}
gen.gen_cfg(&sig.method_features())
}
pub fn not_method_features(sig: &MethodSignature, gen: &Gen) -> TokenStream {
if gen.root.is_empty() {
return TokenStream::new();
}
gen.gen_cfg_not(&sig.method_features())
}
pub fn signature_features(sig: &Signature, gen: &Gen) -> BTreeSet<&'static str> {
if gen.root.is_empty() {
return BTreeSet::new();
}
let mut features = BTreeSet::new();
let mut keys = std::collections::HashSet::new();
sig.kind.features(&mut features, &mut keys);
features
}
pub fn features(def: &TypeDef, gen: &Gen) -> BTreeSet<&'static str> {
if gen.root.is_empty() {
return BTreeSet::new();
}
let mut features = BTreeSet::new();
let mut keys = std::collections::HashSet::new();
def.features(&mut features, &mut keys);
features
}