fluencelabs/wasm-bindgen
1
0
Fork 0
mirror of https://github.com/fluencelabs/wasm-bindgen synced 2025-06-20 08:16:31 +00:00
Code Issues Projects Releases Wiki Activity

Ensure class arguments have the expected type

Browse Source
This commit is contained in:
Alex Crichton
2017-12-18 19:01:37 -08:00
parent 9ec77e2b44
commit 1ffcb90d2d
3 changed files with 52 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
crates/wasm-bindgen-cli-support/src/js.rs
View File

@ -7,6 +7,7 @@ pub struct Js {
pub expose_get_string_from_wasm: bool,
pub expose_pass_string_to_wasm: bool,
pub expose_assert_num: bool,
pub expose_assert_class: bool,
pub expose_token: bool,
pub exports: Vec<(String, String)>,
pub classes: Vec<String>,
@ -128,18 +129,20 @@ impl Js {
", i = i));
}
}
shared::Type::ByRef(_) |
shared::Type::ByMutRef(_) => {
shared::Type::ByRef(ref s) |
shared::Type::ByMutRef(ref s) => {
self.expose_assert_class = true;
arg_conversions.push_str(&format!("\
const ptr{i} = {arg}.__wasmPtr;
", i = i, arg = name));
const ptr{i} = _assertClass({arg}, {struct_});
", i = i, arg = name, struct_ = s));
pass(&format!("ptr{}", i));
}
shared::Type::ByValue(_) => {
shared::Type::ByValue(ref s) => {
self.expose_assert_class = true;
arg_conversions.push_str(&format!("\
const ptr{i} = {arg}.__wasmPtr;
const ptr{i} = _assertClass({arg}, {struct_});
{arg}.__wasmPtr = 0;
", i = i, arg = name));
", i = i, arg = name, struct_ = s));
pass(&format!("ptr{}", i));
}
}
@ -270,6 +273,15 @@ impl Js {
");
}
}
if self.expose_assert_class {
globals.push_str("
function _assertClass(instance, klass) {
if (!(instance instanceof klass))
throw new Error(`expected instance of ${klass.name}`);
return instance.__wasmPtr;
}
");
}
let mut exports = String::new();
for class in self.classes.iter() {