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nop externals

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This commit is contained in:
Sergey Pepyakin 2018-01-09 18:18:16 +03:00
parent 0db8f109b3
commit f773c61cb1
2 changed files with 4 additions and 4 deletions
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6
src/interpreter/host.rs
View File

@ -44,15 +44,15 @@ pub trait Externals {
fn check_signature(&self, index: HostFuncIndex, signature: &FunctionType) -> bool; fn check_signature(&self, index: HostFuncIndex, signature: &FunctionType) -> bool;
} }
pub struct EmptyExternals; pub struct NopExternals;
impl Externals for EmptyExternals { impl Externals for NopExternals {
fn invoke_index( fn invoke_index(
&mut self, &mut self,
_index: HostFuncIndex, _index: HostFuncIndex,
_args: &[RuntimeValue], _args: &[RuntimeValue],
) -> Result<Option<RuntimeValue>, Error> { ) -> Result<Option<RuntimeValue>, Error> {
Err(Error::Trap("invoke index on empty externals".into())) Err(Error::Trap("invoke index on no-op externals".into()))
} }
fn check_signature(&self, _index: HostFuncIndex, _signature: &FunctionType) -> bool { fn check_signature(&self, _index: HostFuncIndex, _signature: &FunctionType) -> bool {

2
src/interpreter/mod.rs
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@ -123,7 +123,7 @@ pub use self::memory::{MemoryInstance, MemoryRef};
pub use self::table::{TableInstance, TableRef}; pub use self::table::{TableInstance, TableRef};
pub use self::program::ProgramInstance; pub use self::program::ProgramInstance;
pub use self::value::{RuntimeValue, TryInto}; pub use self::value::{RuntimeValue, TryInto};
pub use self::host::{Externals, HostFuncIndex, EmptyExternals, HostError}; pub use self::host::{Externals, HostFuncIndex, NopExternals, HostError};
pub use self::imports::{ImportResolver, Imports}; pub use self::imports::{ImportResolver, Imports};
pub use self::module::{ModuleInstance, ModuleRef, ExternVal}; pub use self::module::{ModuleInstance, ModuleRef, ExternVal};
pub use self::global::{GlobalInstance, GlobalRef}; pub use self::global::{GlobalInstance, GlobalRef};