fluencelabs/wasm-bindgen
1
0
Fork 0
mirror of https://github.com/fluencelabs/wasm-bindgen synced 2025-04-02 02:11:06 +00:00
Code Issues Projects Releases Wiki Activity

Only emit JS glue assertions for move arguments in debug mode

Browse Source
This commit is contained in:
Nick Fitzgerald 2018-11-08 14:50:29 -08:00
parent d646b29bb7
commit 75c18f0916
2 changed files with 19 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
crates/cli-support/src/js/js2rust.rs
View File

@ -85,7 +85,7 @@ impl<'a, 'b> Js2Rust<'a, 'b> {
if self.cx.config.debug { if self.cx.config.debug {
self.prelude( self.prelude(
"if (this.ptr === 0) { "if (this.ptr === 0) {
throw new Error('Attempt to use a moved value'); throw new Error('Attempt to use a moved value');
}", }",
); );
} }
@ -330,14 +330,26 @@ impl<'a, 'b> Js2Rust<'a, 'b> {
self.prelude(&format!( self.prelude(&format!(
"\ "\
const ptr{i} = {arg}.ptr;\n\ const ptr{i} = {arg}.ptr;\n\
if (ptr{i} === 0) {{ ",
throw new Error('Attempt to use a moved value');
}}
{arg}.ptr = 0;\n\
",
i = i, i = i,
arg = name arg = name
)); ));
if self.cx.config.debug {
self.prelude(&format!(
"\
if (ptr{i} === 0) {{
throw new Error('Attempt to use a moved value');
}}
",
i = i,
));
}
self.prelude(&format!(
"\
{arg}.ptr = 0;\n\
",
arg = name
));
self.rust_arguments.push(format!("ptr{}", i)); self.rust_arguments.push(format!("ptr{}", i));
} }
return Ok(self); return Ok(self);

2
tests/wasm/classes.js
View File

@ -124,7 +124,7 @@ exports.js_readonly_fields = () => {
exports.js_double_consume = () => { exports.js_double_consume = () => {
const r = new wasm.DoubleConsume(); const r = new wasm.DoubleConsume();
assert.throws(() => r.consume(r), /Attempt to use a moved value/); assert.throws(() => r.consume(r));
}; };