How to make Rust-analyzer lint in webassembly mode

[temeddix]

There might be various Rust codes with these attribute above:

#[cfg(target_family = "wasm")]
...
#[cfg(not(target_family = "wasm"))]
...

Since the environments of the web and native platforms are so different, there are times when you need to use these attributes to include and exclude parts of the code depending on whether it's targeting web or not.

By default, Rust-analyzer runs in native mode. To make it run in webassembly mode, add .cargo/config.toml file with this content:

[build]
# Uncomment the line below to switch Rust-analyzer to perform
# type checking and linting in webassembly mode, for the web target.
# You might have to restart Rust-analyzer for this change to take effect.
target = "wasm32-unknown-unknown"
rustflags = ["-C", "target-feature=+atomics,+bulk-memory,+mutable-globals"]

[unstable]
build-std = ['std', 'panic_abort']