mirror of
https://github.com/rustwasm/wasm-bindgen.git
synced 2024-11-28 05:52:21 +03:00
02b7021053
This commit leverages two new attributes in the Rust compiler, `#[wasm_custom_section]` and `#[wasm_import_module]`. These two attributes allow removing a lot of hacks found in wasm-bindgen and also allows removing the requirement of `wasm-opt` to remove the unused data sections. This does require two new nightly features but we already required the `proc_macro` nightly feature and these will hopefully be stabilized before that feature!
93 lines
2.5 KiB
Rust
93 lines
2.5 KiB
Rust
extern crate test_support;
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#[test]
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fn dependencies_work() {
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test_support::project()
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.file(
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"src/lib.rs",
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r#"
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#![feature(proc_macro, wasm_custom_section)]
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extern crate wasm_bindgen;
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extern crate dependency;
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use wasm_bindgen::prelude::*;
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#[wasm_bindgen]
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pub fn return_dep_ty(x: f64) -> dependency::Foo {
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dependency::Foo(x)
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}
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#[wasm_bindgen]
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pub fn takes_own_dep_ty(foo: dependency::Foo) -> f64 {
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foo.0
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}
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#[wasm_bindgen]
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pub fn takes_ref_dep_ty(foo: &dependency::Foo) -> f64 {
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foo.0
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}
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#[wasm_bindgen]
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pub fn takes_mut_dep_ty(foo: &mut dependency::Foo, x: f64) {
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foo.0 = x;
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}
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"#,
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)
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.add_local_dependency("dependency", "vendor/dependency")
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.file(
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"vendor/dependency/Cargo.toml",
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&format!(
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r#"
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[package]
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name = "dependency"
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version = "0.0.1"
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authors = []
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[dependencies]
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wasm-bindgen = {{ path = '{}' }}
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"#,
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env!("CARGO_MANIFEST_DIR")
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),
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)
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.file(
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"vendor/dependency/src/lib.rs",
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r#"
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#![feature(proc_macro, wasm_custom_section)]
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extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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#[wasm_bindgen]
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pub struct Foo(pub f64);
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#[wasm_bindgen]
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impl Foo {
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pub fn new(x: f64) -> Foo { Foo(x) }
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pub fn get(&self) -> f64 { self.0 }
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}
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"#,
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)
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.file(
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"test.ts",
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r#"
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import * as assert from "assert";
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import * as wasm from "./out";
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export function test() {
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const foo = wasm.return_dep_ty(42);
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assert.strictEqual(foo.get(), 42);
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const x = wasm.takes_ref_dep_ty(foo);
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assert.strictEqual(x, 42);
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const y = 1337;
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wasm.takes_mut_dep_ty(foo, y);
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assert.strictEqual(foo.get(), y);
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const z = wasm.takes_own_dep_ty(foo);
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assert.strictEqual(z, y);
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assert.strictEqual(foo.ptr, 0);
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}
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"#,
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)
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.test();
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}
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