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Replace WebAssembly feature CLI options with --wasm-features.

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This commit hides the existing WebAssembly feature CLI options (e.g.
`--enable-simd`) and adds a `--wasm-features` flag that enables multiple
(or all) WebAssembly features.

Features can be disabled by prefixing the value with `-`, e.g.
`--wasm-features=-simd`.
This commit is contained in:
Peter Huene
2021-03-30 23:56:56 -07:00
parent 1ce2a87149
commit 0000aa0646
9 changed files with 356 additions and 58 deletions
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43
src/commands/compile.rs
View File

@@ -12,6 +12,31 @@ use structopt::{
use target_lexicon::Triple;
use wasmtime::{Config, Engine, Module};
lazy_static::lazy_static! {
static ref AFTER_HELP: String = {
format!(
"By default, no CPU features or presets will be enabled for the compilation.\n\
\n\
{}\
\n\
Usage examples:\n\
\n\
Compiling a WebAssembly module for the current platform:\n\
\n \
wasmtime compile example.wasm
\n\
Specifying the output file:\n\
\n \
wasmtime compile -o output.cwasm input.wasm\n\
\n\
Compiling for a specific platform (Linux) and CPU preset (Skylake):\n\
\n \
wasmtime compile --target x86_64-unknown-linux --skylake foo.wasm\n",
crate::WASM_FEATURES.as_str()
)
};
}
/// Compiles a WebAssembly module.
#[derive(StructOpt)]
#[structopt(
@@ -22,23 +47,7 @@ use wasmtime::{Config, Engine, Module};
group = ArgGroup::with_name("preset-x64"),
group = ArgGroup::with_name("aarch64").multiple(true).conflicts_with_all(&["x64", "preset-x64"]),
group = ArgGroup::with_name("preset-aarch64").conflicts_with_all(&["x64", "preset-x64"]),
after_help = "By default, no CPU flags will be enabled for the compilation.\n\
\n\
Use the various preset and CPU flag options for the environment being targeted.\n\
\n\
Usage examples:\n\
\n\
Compiling a WebAssembly module for the current platform:\n\
\n \
wasmtime compile example.wasm
\n\
Specifying the output file:\n\
\n \
wasmtime compile -o output.cwasm input.wasm\n\
\n\
Compiling for a specific platform (Linux) and CPU preset (Skylake):\n\
\n \
wasmtime compile --target x86_64-unknown-linux --skylake foo.wasm\n"
after_help = AFTER_HELP.as_str()
)]
pub struct CompileCommand {
#[structopt(flatten)]