fluencelabs/wasm-bindgen
1
0
Fork 0
mirror of https://github.com/fluencelabs/wasm-bindgen synced 2025-03-23 21:50:51 +00:00
Code Issues Projects Releases Wiki Activity

Merge pull request #272 from ohanar/webidl_static

Browse Source 
webidl: add support for static methods and attributes
This commit is contained in:
Nick Fitzgerald 2018-06-18 13:44:24 -07:00 committed by GitHub
commit 7d1f26d7b0
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 441 additions and 257 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
crates/backend/src/ast.rs
View File

@ -49,11 +49,21 @@ pub struct ImportFunction {
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
pub enum ImportFunctionKind {
Method { class: String, ty: syn::Type },
JsConstructor { class: String, ty: syn::Type },
Method {
class: String,
ty: syn::Type,
kind: MethodKind,
},
Normal,
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
pub enum MethodKind {
Normal,
Constructor,
Static,
}
#[cfg_attr(feature = "extra-traits", derive(Debug, PartialEq, Eq))]
pub struct ImportStatic {
pub vis: syn::Visibility,
@ -398,6 +408,7 @@ impl Program {
ImportFunctionKind::Method {
class: class_name.to_string(),
ty: class.clone(),
kind: MethodKind::Normal,
}
} else if wasm.opts.constructor() {
let class = match wasm.ret {
@ -414,9 +425,10 @@ impl Program {
let class_name = extract_path_ident(class_name)
.expect("first argument of method must be a bare type");
ImportFunctionKind::JsConstructor {
ImportFunctionKind::Method {
class: class_name.to_string(),
ty: class.clone(),
kind: MethodKind::Constructor,
}
} else {
ImportFunctionKind::Normal
@ -426,7 +438,6 @@ impl Program {
let ns = match kind {
ImportFunctionKind::Normal => "n",
ImportFunctionKind::Method { ref class, .. } => class,
ImportFunctionKind::JsConstructor { ref class, .. } => class,
};
format!("__wbg_f_{}_{}_{}", js_name, f.ident, ns)
};
@ -690,20 +701,6 @@ impl ImportFunction {
}
fn shared(&self) -> shared::ImportFunction {
let mut method = false;
let mut js_new = false;
let mut class_name = None;
match self.kind {
ImportFunctionKind::Method { ref class, .. } => {
method = true;
class_name = Some(class);
}
ImportFunctionKind::JsConstructor { ref class, .. } => {
js_new = true;
class_name = Some(class);
}
ImportFunctionKind::Normal => {}
}
let mut getter = None;
let mut setter = None;
@ -715,15 +712,34 @@ impl ImportFunction {
let s = s.map(|s| s.to_string());
setter = Some(s.unwrap_or_else(|| self.infer_setter_property()));
}
let mut method = None;
match self.kind {
ImportFunctionKind::Method {
ref class,
ref kind,
..
} => {
let kind = match kind {
MethodKind::Normal => shared::MethodKind::Normal,
MethodKind::Constructor => shared::MethodKind::Constructor,
MethodKind::Static => shared::MethodKind::Static,
};
method = Some(shared::MethodData {
class: class.clone(),
kind,
getter,
setter,
});
}
ImportFunctionKind::Normal => {}
}
shared::ImportFunction {
shim: self.shim.to_string(),
catch: self.function.opts.catch(),
method,
js_new,
structural: self.function.opts.structural(),
getter,
setter,
class: class_name.cloned(),
function: self.function.shared(),
}
}

11
crates/backend/src/codegen.rs
View File

@ -552,11 +552,12 @@ impl ToTokens for ast::ImportFunction {
let mut class_ty = None;
let mut is_method = false;
match self.kind {
ast::ImportFunctionKind::Method { ref ty, .. } => {
is_method = true;
class_ty = Some(ty);
}
ast::ImportFunctionKind::JsConstructor { ref ty, .. } => {
ast::ImportFunctionKind::Method {
ref ty, ref kind, ..
} => {
if let ast::MethodKind::Normal = kind {
is_method = true;
}
class_ty = Some(ty);
}
ast::ImportFunctionKind::Normal => {}

136
crates/cli-support/src/js/mod.rs
View File

@ -1605,76 +1605,78 @@ impl<'a, 'b> SubContext<'a, 'b> {
{
let descriptor = self.cx.describe(&import.shim);
let target = match import.class {
Some(ref class) if import.js_new => {
format!("new {}", self.import_name(info, class)?)
}
Some(ref class) if import.method => {
let target = match &import.method {
Some(shared::MethodData { class, kind, getter, setter }) => {
let class = self.import_name(info, class)?;
let target = if let Some(ref g) = import.getter {
if import.structural {
format!("function() {{
return this.{};
}}", g)
} else {
self.cx.expose_get_inherited_descriptor();
format!(
"GetOwnOrInheritedPropertyDescriptor\
({}.prototype, '{}').get",
class,
g,
)
}
} else if let Some(ref s) = import.setter {
if import.structural {
format!("function(y) {{
this.{} = y;
}}", s)
} else {
self.cx.expose_get_inherited_descriptor();
format!(
"GetOwnOrInheritedPropertyDescriptor\
({}.prototype, '{}').set",
class,
s,
)
}
if let shared::MethodKind::Constructor = kind {
format!("new {}", class)
} else {
if import.structural {
let nargs = descriptor.unwrap_function().arguments.len();
let mut s = format!("function(");
for i in 0..nargs - 1 {
if i > 0 {
drop(write!(s, ", "));
}
drop(write!(s, "x{}", i));
}
s.push_str(") { \nreturn this.");
s.push_str(&import.function.name);
s.push_str("(");
for i in 0..nargs - 1 {
if i > 0 {
drop(write!(s, ", "));
}
drop(write!(s, "x{}", i));
}
s.push_str(");\n}");
s
let is_static = if let shared::MethodKind::Static = kind {
true
} else {
format!("{}.prototype.{}", class, import.function.name)
}
};
self.cx.global(&format!("
const {}_target = {};
", import.shim, target));
format!("{}_target.call", import.shim)
}
Some(ref class) => {
let class = self.import_name(info, class)?;
self.cx.global(&format!("
const {}_target = {}.{};
", import.shim, class, import.function.name));
format!("{}_target", import.shim)
false
};
let target = if let Some(g) = getter {
if import.structural {
format!("function(y) {{
return this.{};
}}", g)
} else {
self.cx.expose_get_inherited_descriptor();
format!(
"GetOwnOrInheritedPropertyDescriptor\
({}{}, '{}').get",
class,
if is_static { "" } else { ".prototype "},
g,
)
}
} else if let Some(s) = setter {
if import.structural {
format!("function(y) {{
this.{} = y;
}}", s)
} else {
self.cx.expose_get_inherited_descriptor();
format!(
"GetOwnOrInheritedPropertyDescriptor\
({}{}, '{}').set",
class,
if is_static { "" } else { ".prototype "},
s,
)
}
} else {
if import.structural {
let nargs = descriptor.unwrap_function().arguments.len();
let mut s = format!("function(");
for i in 0..nargs - 1 {
if i > 0 {
drop(write!(s, ", "));
}
drop(write!(s, "x{}", i));
}
s.push_str(") { \nreturn this.");
s.push_str(&import.function.name);
s.push_str("(");
for i in 0..nargs - 1 {
if i > 0 {
drop(write!(s, ", "));
}
drop(write!(s, "x{}", i));
}
s.push_str(");\n}");
s
} else {
format!("{}{}.{}", class, if is_static { "" } else { ".prototype" }, import.function.name)
}
};
self.cx.global(&format!("
const {}_target = {};
", import.shim, target));
format!("{}_target{}", import.shim, if is_static { "" } else { ".call" })
}
}
None => {
let name = self.import_name(info, &import.function.name)?;

52
crates/shared/src/lib.rs
View File

@ -39,13 +39,24 @@ pub enum ImportKind {
pub struct ImportFunction {
pub shim: String,
pub catch: bool,
pub method: bool,
pub js_new: bool,
pub method: Option<MethodData>,
pub structural: bool,
pub function: Function,
}
#[derive(Deserialize, Serialize)]
pub struct MethodData {
pub class: String,
pub kind: MethodKind,
pub getter: Option<String>,
pub setter: Option<String>,
pub class: Option<String>,
pub function: Function,
}
#[derive(Deserialize, Serialize)]
pub enum MethodKind {
Normal,
Constructor,
Static,
}
#[derive(Deserialize, Serialize)]
@ -55,8 +66,7 @@ pub struct ImportStatic {
}
#[derive(Deserialize, Serialize)]
pub struct ImportType {
}
pub struct ImportType {}
#[derive(Deserialize, Serialize)]
pub struct Export {
@ -77,7 +87,7 @@ pub struct Enum {
#[derive(Deserialize, Serialize)]
pub struct EnumVariant {
pub name: String,
pub value: u32
pub value: u32,
}
#[derive(Deserialize, Serialize)]
@ -101,20 +111,16 @@ pub struct StructField {
pub fn new_function(struct_name: &str) -> String {
let mut name = format!("__wbg_");
name.extend(struct_name
.chars()
.flat_map(|s| s.to_lowercase()));
name.extend(struct_name.chars().flat_map(|s| s.to_lowercase()));
name.push_str("_new");
return name
return name;
}
pub fn free_function(struct_name: &str) -> String {
let mut name = format!("__wbg_");
name.extend(struct_name
.chars()
.flat_map(|s| s.to_lowercase()));
name.extend(struct_name.chars().flat_map(|s| s.to_lowercase()));
name.push_str("_free");
return name
return name;
}
pub fn free_function_export_name(function_name: &str) -> String {
@ -128,27 +134,23 @@ pub fn struct_function_export_name(struct_: &str, f: &str) -> String {
.collect::<String>();
name.push_str("_");
name.push_str(f);
return name
return name;
}
pub fn struct_field_get(struct_: &str, f: &str) -> String {
let mut name = String::from("__wbg_get_");
name.extend(struct_
.chars()
.flat_map(|s| s.to_lowercase()));
name.extend(struct_.chars().flat_map(|s| s.to_lowercase()));
name.push_str("_");
name.push_str(f);
return name
return name;
}
pub fn struct_field_set(struct_: &str, f: &str) -> String {
let mut name = String::from("__wbg_set_");
name.extend(struct_
.chars()
.flat_map(|s| s.to_lowercase()));
name.extend(struct_.chars().flat_map(|s| s.to_lowercase()));
name.push_str("_");
name.push_str(f);
return name
return name;
}
pub fn version() -> String {
@ -158,5 +160,5 @@ pub fn version() -> String {
v.push_str(s);
v.push_str(")");
}
return v
return v;
}

197
crates/webidl/src/lib.rs
View File

@ -24,12 +24,14 @@ use std::iter;
use std::path::Path;
use failure::ResultExt;
use heck::CamelCase;
use quote::ToTokens;
mod util;
use util::{create_function, ident_ty, raw_ident, rust_ident, webidl_ty_to_syn_ty, TypePosition};
use util::{
create_basic_method, create_function, create_getter, create_setter, ident_ty, rust_ident,
webidl_ty_to_syn_ty, wrap_import_function, TypePosition,
};
/// Either `Ok(t)` or `Err(failure::Error)`.
pub type Result<T> = ::std::result::Result<T, failure::Error>;
@ -184,9 +186,10 @@ impl<'a> WebidlParse<&'a webidl::ast::NonPartialInterface> for webidl::ast::Exte
) -> Result<()> {
let mut add_constructor = |arguments: &[webidl::ast::Argument], class: &str| {
let self_ty = ident_ty(rust_ident(&interface.name));
let kind = backend::ast::ImportFunctionKind::JsConstructor {
let kind = backend::ast::ImportFunctionKind::Method {
class: class.to_string(),
ty: self_ty.clone(),
kind: backend::ast::MethodKind::Constructor,
};
create_function(
"new",
@ -216,7 +219,7 @@ impl<'a> WebidlParse<&'a webidl::ast::NonPartialInterface> for webidl::ast::Exte
webidl::ast::ExtendedAttribute::NoArguments(webidl::ast::Other::Identifier(name))
if name == "Constructor" =>
{
add_constructor(&[] as &[_], &interface.name);
add_constructor(&[], &interface.name);
}
webidl::ast::ExtendedAttribute::NamedArgumentList(
webidl::ast::NamedArgumentListExtendedAttribute {
@ -262,10 +265,11 @@ impl<'a> WebidlParse<&'a str> for webidl::ast::InterfaceMember {
impl<'a> WebidlParse<&'a str> for webidl::ast::Attribute {
fn webidl_parse(&self, program: &mut backend::ast::Program, self_name: &'a str) -> Result<()> {
match *self {
webidl::ast::Attribute::Regular(ref attr) => attr.webidl_parse(program, self_name),
match self {
webidl::ast::Attribute::Regular(attr) => attr.webidl_parse(program, self_name),
webidl::ast::Attribute::Static(attr) => attr.webidl_parse(program, self_name),
// TODO
webidl::ast::Attribute::Static(_) | webidl::ast::Attribute::Stringifier(_) => {
webidl::ast::Attribute::Stringifier(_) => {
warn!("Unsupported WebIDL attribute: {:?}", self);
Ok(())
}
@ -275,12 +279,11 @@ impl<'a> WebidlParse<&'a str> for webidl::ast::Attribute {
impl<'a> WebidlParse<&'a str> for webidl::ast::Operation {
fn webidl_parse(&self, program: &mut backend::ast::Program, self_name: &'a str) -> Result<()> {
match *self {
webidl::ast::Operation::Regular(ref op) => op.webidl_parse(program, self_name),
match self {
webidl::ast::Operation::Regular(op) => op.webidl_parse(program, self_name),
webidl::ast::Operation::Static(op) => op.webidl_parse(program, self_name),
// TODO
webidl::ast::Operation::Special(_)
| webidl::ast::Operation::Static(_)
| webidl::ast::Operation::Stringifier(_) => {
webidl::ast::Operation::Special(_) | webidl::ast::Operation::Stringifier(_) => {
warn!("Unsupported WebIDL operation: {:?}", self);
Ok(())
}
@ -290,69 +293,46 @@ impl<'a> WebidlParse<&'a str> for webidl::ast::Operation {
impl<'a> WebidlParse<&'a str> for webidl::ast::RegularAttribute {
fn webidl_parse(&self, program: &mut backend::ast::Program, self_name: &'a str) -> Result<()> {
fn create_getter(
this: &webidl::ast::RegularAttribute,
self_name: &str,
) -> Option<backend::ast::Import> {
let ret = match webidl_ty_to_syn_ty(&this.type_, TypePosition::Return) {
None => {
warn!("Attribute's type does not yet support reading: {:?}. Skipping getter binding for {:?}",
this.type_, this);
return None;
}
Some(ty) => Some(ty),
};
let kind = backend::ast::ImportFunctionKind::Method {
class: self_name.to_string(),
ty: ident_ty(rust_ident(self_name)),
};
create_function(
&this.name,
iter::empty(),
kind,
ret,
vec![backend::ast::BindgenAttr::Getter(Some(raw_ident(
&this.name,
)))],
).map(|function| backend::ast::Import {
module: None,
version: None,
js_namespace: None,
kind: backend::ast::ImportKind::Function(function),
})
}
fn create_setter(
this: &webidl::ast::RegularAttribute,
self_name: &str,
) -> Option<backend::ast::Import> {
let kind = backend::ast::ImportFunctionKind::Method {
class: self_name.to_string(),
ty: ident_ty(rust_ident(self_name)),
};
create_function(
&format!("set_{}", this.name.to_camel_case()),
iter::once((&*this.name, &*this.type_, false)),
kind,
None,
vec![backend::ast::BindgenAttr::Setter(Some(raw_ident(
&this.name,
)))],
).map(|function| backend::ast::Import {
module: None,
version: None,
js_namespace: None,
kind: backend::ast::ImportKind::Function(function),
})
}
create_getter(self, self_name).map(|import| program.imports.push(import));
create_getter(
&self.name,
&self.type_,
self_name,
backend::ast::MethodKind::Normal,
).map(wrap_import_function)
.map(|import| program.imports.push(import));
if !self.read_only {
create_setter(self, self_name).map(|import| program.imports.push(import));
create_setter(
&self.name,
&self.type_,
self_name,
backend::ast::MethodKind::Normal,
).map(wrap_import_function)
.map(|import| program.imports.push(import));
}
Ok(())
}
}
impl<'a> WebidlParse<&'a str> for webidl::ast::StaticAttribute {
fn webidl_parse(&self, program: &mut backend::ast::Program, self_name: &'a str) -> Result<()> {
create_getter(
&self.name,
&self.type_,
self_name,
backend::ast::MethodKind::Static,
).map(wrap_import_function)
.map(|import| program.imports.push(import));
if !self.read_only {
create_setter(
&self.name,
&self.type_,
self_name,
backend::ast::MethodKind::Static,
).map(wrap_import_function)
.map(|import| program.imports.push(import));
}
Ok(())
@ -361,54 +341,29 @@ impl<'a> WebidlParse<&'a str> for webidl::ast::RegularAttribute {
impl<'a> WebidlParse<&'a str> for webidl::ast::RegularOperation {
fn webidl_parse(&self, program: &mut backend::ast::Program, self_name: &'a str) -> Result<()> {
let name = match self.name {
None => {
warn!(
"Operations without a name are unsupported. Skipping {:?}",
self
);
return Ok(());
}
Some(ref name) => name,
};
let kind = backend::ast::ImportFunctionKind::Method {
class: self_name.to_string(),
ty: ident_ty(rust_ident(self_name)),
};
let ret = match self.return_type {
webidl::ast::ReturnType::Void => None,
webidl::ast::ReturnType::NonVoid(ref ty) => {
match webidl_ty_to_syn_ty(ty, TypePosition::Return) {
None => {
warn!(
"Operation's return type is not yet supported: {:?}. Skipping bindings for {:?}",
ty, self
);
return Ok(());
}
Some(ty) => Some(ty),
}
}
};
create_function(
&name,
self.arguments
.iter()
.map(|arg| (&*arg.name, &*arg.type_, arg.variadic)),
kind,
ret,
Vec::new(),
).map(|function| {
program.imports.push(backend::ast::Import {
module: None,
version: None,
js_namespace: None,
kind: backend::ast::ImportKind::Function(function),
})
});
create_basic_method(
&self.arguments,
self.name.as_ref(),
&self.return_type,
self_name,
backend::ast::MethodKind::Normal,
).map(wrap_import_function)
.map(|import| program.imports.push(import));
Ok(())
}
}
impl<'a> WebidlParse<&'a str> for webidl::ast::StaticOperation {
fn webidl_parse(&self, program: &mut backend::ast::Program, self_name: &'a str) -> Result<()> {
create_basic_method(
&self.arguments,
self.name.as_ref(),
&self.return_type,
self_name,
backend::ast::MethodKind::Static,
).map(wrap_import_function)
.map(|import| program.imports.push(import));
Ok(())
}

117
crates/webidl/src/util.rs
View File

@ -1,4 +1,4 @@
use std::iter::FromIterator;
use std::iter::{self, FromIterator};
use backend;
use heck::SnakeCase;
@ -30,7 +30,7 @@ pub fn rust_ident(name: &str) -> Ident {
// Create an `Ident` without checking to see if it conflicts with a Rust
// keyword.
pub fn raw_ident(name: &str) -> Ident {
fn raw_ident(name: &str) -> Ident {
Ident::new(name, proc_macro2::Span::call_site())
}
@ -163,7 +163,12 @@ where
{
let estimate = arguments.size_hint();
let len = estimate.1.unwrap_or(estimate.0);
let mut res = if let backend::ast::ImportFunctionKind::Method { ty, .. } = kind {
let mut res = if let backend::ast::ImportFunctionKind::Method {
ty,
kind: backend::ast::MethodKind::Normal,
..
} = kind
{
let mut res = Vec::with_capacity(len + 1);
res.push(simple_fn_arg(raw_ident("self_"), shared_ref(ty.clone())));
res
@ -189,7 +194,7 @@ where
Some(res)
}
pub fn create_function<'a, 'b, I>(
pub fn create_function<'a, I>(
name: &str,
arguments: I,
kind: backend::ast::ImportFunctionKind,
@ -216,7 +221,6 @@ where
let ns = match kind {
backend::ast::ImportFunctionKind::Normal => "",
backend::ast::ImportFunctionKind::Method { ref class, .. } => class,
backend::ast::ImportFunctionKind::JsConstructor { ref class, .. } => class,
};
raw_ident(&format!("__widl_f_{}_{}", rust_name, ns))
@ -239,3 +243,106 @@ where
shim,
})
}
pub fn create_basic_method(
arguments: &[webidl::ast::Argument],
name: Option<&String>,
return_type: &webidl::ast::ReturnType,
self_name: &str,
kind: backend::ast::MethodKind,
) -> Option<backend::ast::ImportFunction> {
let name = match name {
None => {
warn!("Operations without a name are unsupported");
return None;
}
Some(ref name) => name,
};
let kind = backend::ast::ImportFunctionKind::Method {
class: self_name.to_string(),
ty: ident_ty(rust_ident(self_name)),
kind,
};
let ret = match return_type {
webidl::ast::ReturnType::Void => None,
webidl::ast::ReturnType::NonVoid(ty) => match webidl_ty_to_syn_ty(ty, TypePosition::Return)
{
None => {
warn!("Operation's return type is not yet supported: {:?}", ty);
return None;
}
Some(ty) => Some(ty),
},
};
create_function(
&name,
arguments
.iter()
.map(|arg| (&*arg.name, &*arg.type_, arg.variadic)),
kind,
ret,
Vec::new(),
)
}
pub fn create_getter(
name: &str,
ty: &webidl::ast::Type,
self_name: &str,
kind: backend::ast::MethodKind,
) -> Option<backend::ast::ImportFunction> {
let ret = match webidl_ty_to_syn_ty(ty, TypePosition::Return) {
None => {
warn!("Attribute's type does not yet support reading: {:?}", ty);
return None;
}
Some(ty) => Some(ty),
};
let kind = backend::ast::ImportFunctionKind::Method {
class: self_name.to_string(),
ty: ident_ty(rust_ident(self_name)),
kind,
};
create_function(
name,
iter::empty(),
kind,
ret,
vec![backend::ast::BindgenAttr::Getter(Some(raw_ident(name)))],
)
}
pub fn create_setter(
name: &str,
ty: &webidl::ast::Type,
self_name: &str,
kind: backend::ast::MethodKind,
) -> Option<backend::ast::ImportFunction> {
let kind = backend::ast::ImportFunctionKind::Method {
class: self_name.to_string(),
ty: ident_ty(rust_ident(self_name)),
kind,
};
create_function(
&format!("set_{}", name),
iter::once((name, ty, false)),
kind,
None,
vec![backend::ast::BindgenAttr::Setter(Some(raw_ident(name)))],
)
}
pub fn wrap_import_function(function: backend::ast::ImportFunction) -> backend::ast::Import {
backend::ast::Import {
module: None,
version: None,
js_namespace: None,
kind: backend::ast::ImportKind::Function(function),
}
}

125
tests/all/webidl/simple.rs
View File

@ -43,6 +43,8 @@ fn method() {
pub fn test() {
let pi = Foo::new(3.14159);
let e = Foo::new(2.71828);
// TODO: figure out why the following doesn't fail
// assert!(!pi.my_cmp(Foo::new(3.14159)));
let tmp = pi.my_cmp(Foo::new(3.14159));
assert!(tmp);
let tmp =!pi.my_cmp(Foo::new(2.71828));
@ -104,15 +106,11 @@ fn property() {
#[wasm_bindgen]
pub fn test() {
let x = Foo::new(3.14159);
let tmp = x.value() == 3.14159;
assert!(tmp);
let tmp = x.value() != 2.71828;
assert!(tmp);
assert_eq!(x.value(), 3.14159);
assert_ne!(x.value(), 2.71828);
x.set_value(2.71828);
let tmp = x.value() != 3.14159;
assert!(tmp);
let tmp = x.value() == 2.71828;
assert!(tmp);
assert_ne!(x.value(), 3.14159);
assert_eq!(x.value(), 2.71828);
}
"#,
)
@ -167,10 +165,113 @@ fn named_constructor() {
#[wasm_bindgen]
pub fn test() {
let x = Foo::new(3.14159);
let tmp = x.value() == 3.14159;
assert!(tmp);
let tmp = x.value() != 0.;
assert!(tmp);
assert_eq!(x.value(), 3.14159);
assert_ne!(x.value(), 0.);
}
"#,
)
.test();
}
#[test]
fn static_method() {
project()
.file(
"foo.webidl",
r#"
interface Foo {
static double swap(double value);
};
"#,
)
.file(
"foo.ts",
r#"
export class Foo {
private static value: number = 0;
static swap(value: number): number {
const res = Foo.value;
Foo.value = value;
return res;
}
}
"#,
)
.file(
"src/lib.rs",
r#"
#![feature(proc_macro, wasm_custom_section, wasm_import_module)]
extern crate wasm_bindgen;
use wasm_bindgen::prelude::*;
pub mod foo;
use foo::Foo;
#[wasm_bindgen]
pub fn test() {
assert_eq!(Foo::swap(3.14159), 0.);
assert_eq!(Foo::swap(2.71828), 3.14159);
assert_ne!(Foo::swap(2.71828), 3.14159);
assert_eq!(Foo::swap(3.14159), 2.71828);
assert_ne!(Foo::swap(3.14159), 2.71828);
}
"#,
)
.test();
}
#[test]
fn static_property() {
project()
.file(
"foo.webidl",
r#"
interface Foo {
static attribute double value;
};
"#,
)
.file(
"foo.ts",
r#"
export class Foo {
private static _value: number = 0;
static get value(): number {
return Foo._value;
}
static set value(_value: number) {
Foo._value = _value;
}
}
"#,
)
.file(
"src/lib.rs",
r#"
#![feature(proc_macro, wasm_custom_section, wasm_import_module)]
extern crate wasm_bindgen;
use wasm_bindgen::prelude::*;
pub mod foo;
use foo::Foo;
#[wasm_bindgen]
pub fn test() {
assert_eq!(Foo::value(), 0.);
Foo::set_value(3.14159);
assert_eq!(Foo::value(), 3.14159);
assert_ne!(Foo::value(), 2.71828);
Foo::set_value(2.71828);
assert_eq!(Foo::value(), 2.71828);
assert_ne!(Foo::value(), 3.14159);
}
"#,
)