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remove get_roc_panic_msg

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Folkert 2022-07-09 22:24:40 +02:00
parent cc4f88b0e4
commit 378990a003
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1 changed files with 1 additions and 27 deletions
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28
crates/compiler/test_gen/src/helpers/wasm.rs
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@ -11,7 +11,7 @@ use std::marker::PhantomData;
use std::path::{Path, PathBuf};
use std::rc::Rc;
use std::sync::Mutex;
use wasmer::{Memory, WasmPtr};
use wasmer::WasmPtr;
// Should manually match build.rs
const PLATFORM_FILENAME: &str = "wasm_test_platform";
@ -19,7 +19,6 @@ const OUT_DIR_VAR: &str = "TEST_GEN_OUT";
const TEST_WRAPPER_NAME: &str = "test_wrapper";
const INIT_REFCOUNT_NAME: &str = "init_refcount_test";
const PANIC_MSG_NAME: &str = "panic_msg";
fn promote_expr_to_module(src: &str) -> String {
let mut buffer = String::from("app \"test\" provides [main] to \"./platform\"\n\nmain =\n");
@ -275,31 +274,6 @@ where
}
}
/// Our test roc_panic stores a pointer to its message in a global variable so we can find it.
fn get_roc_panic_msg(instance: &wasmer::Instance, memory: &Memory) -> Option<String> {
let memory_bytes = unsafe { memory.data_unchecked() };
// We need to dereference twice!
// The Wasm Global only points at the memory location of the C global value
let panic_msg_global = instance.exports.get_global(PANIC_MSG_NAME).unwrap();
let global_addr = panic_msg_global.get().unwrap_i32() as usize;
let global_ptr = memory_bytes[global_addr..].as_ptr() as *const u32;
// Dereference again to find the bytes of the message string
let msg_addr = unsafe { *global_ptr };
if msg_addr == 0 {
return None;
}
let msg_index = msg_addr as usize;
let msg_len = memory_bytes[msg_index..]
.iter()
.position(|c| *c == 0)
.unwrap();
let msg_bytes = memory_bytes[msg_index..][..msg_len].to_vec();
let msg = unsafe { String::from_utf8_unchecked(msg_bytes) };
Some(msg)
}
#[allow(dead_code)]
pub fn assert_wasm_refcounts_help<T>(
src: &str,