Bug 204054 – WebAssembly exception names

• Status: RESOLVED
• Resolution: DUPLICATE
• Component: WebAssembly

[Jan M]

The WebAssembly exceptions (also thrown by the Wasm engine) have name properties
deviating from the other 3 major JS/Wasm engines.

Ideally a WebAssembly.CompileError should have name "CompileError", etc.
Consider:

 let e1 = new WebAssembly.CompileError("a compile error")
 let e2 = new WebAssembly.LinkError("a link error")
 let e3 = new WebAssembly.RuntimeError("a runtime error")
 print(e1.name, e1);
 print(e2.name, e2);
 print(e3.name, e3);

and compare the output across v8, spidermonkey, chakra, and javascriptcore:

$ v8 exceptions.js 
CompileError CompileError: a compile error
LinkError LinkError: a link error
RuntimeError RuntimeError: a runtime error

$ sm exceptions.js 
CompileError CompileError: a compile error
LinkError LinkError: a link error
RuntimeError RuntimeError: a runtime error

$ ch exceptions.js 
CompileError CompileError: a compile error
LinkError LinkError: a link error
RuntimeError RuntimeError: a runtime error

$ jsc exceptions.js 
Error Error: a compile error (evaluating 'new WebAssembly.CompileError("a compile error")')
Error Error: a link error (evaluating 'new WebAssembly.LinkError("a link error")')
Error Error: a runtime error (evaluating 'new WebAssembly.RuntimeError("a runtime error")')

[Yusuke Suzuki]

*** This bug has been marked as a duplicate of bug 210980 ***