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Support by-value self methods (#348)

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Refactor slightly to use the same internal support that the other reference
conversions are using.

Closes #329
This commit is contained in:
Alex Crichton
2018-06-28 20:09:11 -05:00
committed by GitHub
parent 9a3ff77ea9
commit e55af85edc
6 changed files with 143 additions and 43 deletions
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16
crates/cli-support/src/js/js2rust.rs
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@ -66,14 +66,22 @@ impl<'a, 'b> Js2Rust<'a, 'b> {
/// Flag this shim as a method call into Rust, so the first Rust argument
/// passed should be `this.ptr`.
pub fn method(&mut self, method: bool) -> &mut Self {
pub fn method(&mut self, method: bool, consumed: bool) -> &mut Self {
if method {
self.prelude(
"if (this.ptr === 0) {
throw new Error('Attempt to use a moved value');
}",
throw new Error('Attempt to use a moved value');
}"
);
self.rust_arguments.insert(0, "this.ptr".to_string());
if consumed {
self.prelude("\
const ptr = this.ptr;\n\
this.ptr = 0;\n\
");
self.rust_arguments.insert(0, "ptr".to_string());
} else {
self.rust_arguments.insert(0, "this.ptr".to_string());
}
}
self
}