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fix(emscripten) Various warning fixes and cleanups (#266)

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* fix(emscripten) Remove unused imports.

This patch removes unused imports reported by `rustc` as warnings.

* fix(emscripten) Allow unreachable patterns in `_clock_gettime`.

The compiler thinks `CLOCK_MONOTONIC_COARSE` is unreachable, which is
not always the case. Add an attribute to allow unreachable patterns to
remove the warning.

* fix(emscripten) Rename unused variables.

This patch renames various unused variables by appending an underscore
to them.

* fix(emscripten) Declare `table` as immutable.

The `table` variable in `EmscriptenGlobals::new` was declared as
mutable, but it's never mutated.

* fix(emscripten) Remove an unnecessary `unsafe` block.

* fix(emscripten) Remove duplicate definition of `SO_NOSIGPIPE`.

The `SO_NOSIGPIPE` constant is defined in `syscalls/mod.rs` and
`syscalls/unix.rs`. It's never used in the first case. We can safely
remove it in this file, and keep it in `unix.rs`.

* fix(emscripten) `read_string_from_wasm` is used only on Windows.

Mark `read_string_from_wasm` as possible deadcode, since it's used
only on Windows.

* fix(emscripten) Remove `DYNAMICTOP_PTR_DIFF`, `stacktop`, `stack_max`,
`dynamic_base` and `dynamic_ptr`.

Four functions and one constant are used together but never used
inside or outside this file. They are deadcode.

* fix(emscripten) Remove `infinity` and `nan` fields of `EmscriptenGlobalsData`.

Those fields are never used.

* fix(emscripten) Allow non snake case in `emscripten_target.rs`.

Many functions in this file don't follow the snake case style for Rust
function names. The reason is that we want the names to match the
emscripten symbol names; even if a mapping is done in `lib.rs`, it's
easier to get the same names.

* fix(emscripten) Rename `STATIC_TOP` to `static_top`.

This variable is not a constant.
This commit is contained in:
Ivan Enderlin
2019-03-12 22:00:33 +01:00
committed by Mackenzie Clark
parent ef69f6151c
commit 20d1023abe
15 changed files with 177 additions and 210 deletions
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13
lib/emscripten/src/memory.rs
View File

@ -17,15 +17,15 @@ pub fn _emscripten_memcpy_big(ctx: &mut Ctx, dest: u32, src: u32, len: u32) -> u
}
/// emscripten: _emscripten_get_heap_size
pub fn _emscripten_get_heap_size(ctx: &mut Ctx) -> u32 {
pub fn _emscripten_get_heap_size(_ctx: &mut Ctx) -> u32 {
debug!("emscripten::_emscripten_get_heap_size",);
// TODO: Fix implementation
16_777_216
}
/// emscripten: _emscripten_resize_heap
pub fn _emscripten_resize_heap(ctx: &mut Ctx, requested_size: u32) -> u32 {
debug!("emscripten::_emscripten_resize_heap {}", requested_size);
pub fn _emscripten_resize_heap(_ctx: &mut Ctx, _requested_size: u32) -> u32 {
debug!("emscripten::_emscripten_resize_heap {}", _requested_size);
// TODO: Fix implementation
0
}
@ -47,8 +47,11 @@ pub fn enlarge_memory(_ctx: &mut Ctx) -> u32 {
}
/// emscripten: abortOnCannotGrowMemory
pub fn abort_on_cannot_grow_memory(ctx: &mut Ctx, requested_size: u32) -> u32 {
debug!("emscripten::abort_on_cannot_grow_memory {}", requested_size);
pub fn abort_on_cannot_grow_memory(ctx: &mut Ctx, _requested_size: u32) -> u32 {
debug!(
"emscripten::abort_on_cannot_grow_memory {}",
_requested_size
);
abort_with_message(ctx, "Cannot enlarge memory arrays!");
0
}