wasmer/lib/runtime-core/examples/test.rs

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use wabt::wat2wasm;
use wasmer_clif_backend::CraneliftCompiler;
use wasmer_runtime_core::{import::ImportObject, Instance};
fn main() {
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let instance = create_module_1();
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let result = instance.call("call-overwritten-element", &[]);
println!("result: {:?}", result);
}
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fn create_module_1() -> Instance {
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let module_str = r#"(module
(type (;0;) (func (result i32)))
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(import "spectest" "table" (table (;0;) 10 anyfunc))
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(func (;0;) (type 0) (result i32)
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i32.const 65)
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(func (;1;) (type 0) (result i32)
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i32.const 66)
(func (;2;) (type 0) (result i32)
i32.const 9
call_indirect (type 0))
(export "call-overwritten-element" (func 2))
(elem (;0;) (i32.const 9) 0)
(elem (;1;) (i32.const 9) 1))
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"#;
let wasm_binary = wat2wasm(module_str.as_bytes()).expect("WAST not valid or malformed");
let module = wasmer_runtime_core::compile_with(&wasm_binary[..], &CraneliftCompiler::new())
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.expect("WASM can't be compiled");
module
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.instantiate(generate_imports())
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.expect("WASM can't be instantiated")
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}
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static IMPORT_MODULE: &str = r#"
(module
(type $t0 (func (param i32)))
(type $t1 (func))
(func $print_i32 (export "print_i32") (type $t0) (param $lhs i32))
(func $print (export "print") (type $t1))
(table $table (export "table") 10 20 anyfunc)
(memory $memory (export "memory") 1 2)
(global $global_i32 (export "global_i32") i32 (i32.const 666)))
"#;
pub fn generate_imports() -> ImportObject {
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let wasm_binary = wat2wasm(IMPORT_MODULE.as_bytes()).expect("WAST not valid or malformed");
let module = wasmer_runtime_core::compile_with(&wasm_binary[..], &CraneliftCompiler::new())
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.expect("WASM can't be compiled");
let instance = module
.instantiate(ImportObject::new())
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.expect("WASM can't be instantiated");
let mut imports = ImportObject::new();
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imports.register("spectest", instance);
imports
}