Lib.rs

Cargo Features

[dependencies]
casper-wasmi = { version = "1.0.0", default-features = false, features = ["std", "virtual_memory", "reduced-stack-buffer", "sign_ext", "call_indirect_overlong"] }

default = std

The std feature is set by default whenever casper-wasmi is added without default-features = false somewhere in the dependency tree.

std default virtual_memory?

Use no-default-features for a no_std build.

Enables std of casper-wasm, casper-wasmi-core, and casper-wasmi-validation

virtual_memory = std

Enables OS supported virtual memory.

Note

• This feature is only supported on 64-bit platforms. For 32-bit platforms the linear memory will fallback to using the Vec based implementation.
• The default is to fall back is an inefficient vector based implementation.
• By nature this feature requires region and the Rust standard library.

Enables virtual_memory of casper-wasmi-core

reduced-stack-buffer

Enables reduced-stack-buffer of casper-wasm

casper-wasm:

Reduce stack usage for buffered read operations.
This feature is useful when integrating on resource constrained devices such as microcontroler where the stack size is fixed (stacks do not grow) and limited to a few (k)bytes.

sign_ext

Enables sign_ext of casper-wasm and casper-wasmi-validation

casper-wasm:

Sign-extension operators https://github.com/WebAssembly/sign-extension-ops/

call_indirect_overlong

Enables call_indirect_overlong of casper-wasm

casper-wasm:

Call-indirect-overlong A subset of the reference-types feature that contains just the change to the call_indirect instruction encoding to change the zero byte to an LEB encoding which may have an overlong encoding. https://github.com/WebAssembly/reference-types/ https://github.com/WebAssembly/tool-conventions/blob/main/Lime.md