feat(interface-types) Continue.

This commit is contained in:
Ivan Enderlin 2019-09-12 22:33:44 +02:00
parent c2f30ace6c
commit 8822d34146

View File

@ -30,7 +30,7 @@ macro_rules! consume {
}
#[derive(PartialEq, Debug)]
enum InterfaceType {
pub enum InterfaceType {
Int,
Float,
Any,
@ -65,7 +65,7 @@ impl TryFrom<u64> for InterfaceType {
}
#[derive(PartialEq, Debug)]
enum AdapterKind {
pub enum AdapterKind {
Import,
Export,
HelperFunction,
@ -76,36 +76,91 @@ impl TryFrom<u8> for AdapterKind {
fn try_from(code: u8) -> Result<Self, Self::Error> {
Ok(match code {
0 => Self::Import,
1 => Self::Export,
2 => Self::HelperFunction,
0x0 => Self::Import,
0x1 => Self::Export,
0x2 => Self::HelperFunction,
_ => return Err("Unknown adapter kind code."),
})
}
}
#[derive(Debug)]
struct Export<'input> {
#[derive(PartialEq, Debug)]
pub enum Instruction<'input> {
ArgumentGet(u64),
Call(u64),
CallExport(&'input str),
ReadUtf8,
WriteUtf8(&'input str),
AsWasm(InterfaceType),
AsInterface(InterfaceType),
TableRefAdd,
TableRefGet,
CallMethod(u64),
MakeRecord(InterfaceType),
GetField(u64, u64),
Const(InterfaceType, u64),
FoldSeq(u64),
}
#[derive(PartialEq, Debug)]
pub struct Export<'input> {
name: &'input str,
input_types: Vec<InterfaceType>,
output_types: Vec<InterfaceType>,
}
#[derive(Debug)]
struct Type<'input> {
#[derive(PartialEq, Debug)]
pub struct Type<'input> {
name: &'input str,
fields: Vec<&'input str>,
types: Vec<InterfaceType>,
}
#[derive(Debug)]
struct ImportedFunction<'input> {
#[derive(PartialEq, Debug)]
pub struct ImportedFunction<'input> {
namespace: &'input str,
name: &'input str,
input_types: Vec<InterfaceType>,
output_types: Vec<InterfaceType>,
}
#[derive(PartialEq, Debug)]
pub enum Adapter<'input> {
Import {
namespace: &'input str,
name: &'input str,
input_types: Vec<InterfaceType>,
output_types: Vec<InterfaceType>,
instructions: Vec<Instruction<'input>>,
},
Export {
name: &'input str,
input_types: Vec<InterfaceType>,
output_types: Vec<InterfaceType>,
instructions: Vec<Instruction<'input>>,
},
HelperFunction {
name: &'input str,
input_types: Vec<InterfaceType>,
output_types: Vec<InterfaceType>,
instructions: Vec<Instruction<'input>>,
},
}
#[derive(PartialEq, Debug)]
pub struct Forward<'input> {
name: &'input str,
}
#[derive(PartialEq, Debug)]
pub struct Interfaces<'input> {
exports: Vec<Export<'input>>,
types: Vec<Type<'input>>,
imported_functions: Vec<ImportedFunction<'input>>,
adapters: Vec<Adapter<'input>>,
forwards: Vec<Forward<'input>>,
}
fn byte<'input, E: ParseError<&'input [u8]>>(input: &'input [u8]) -> IResult<&'input [u8], u8, E> {
if input.is_empty() {
return Err(Err::Error(make_error(input, ErrorKind::Eof)));
@ -184,116 +239,264 @@ fn ty<'input, E: ParseError<&'input [u8]>>(
return Err(Err::Error(make_error(input, ErrorKind::Eof)));
}
let (input, ty) = leb(input)?;
let (output, ty) = leb(input)?;
match InterfaceType::try_from(ty) {
Ok(ty) => Ok((input, ty)),
Ok(ty) => Ok((output, ty)),
Err(_) => Err(Err::Error(make_error(input, ErrorKind::ParseTo))),
}
}
pub fn parse<'input, E: ParseError<&'input [u8]>>(
bytes: &'input [u8],
) -> IResult<&'input [u8], bool, E> {
let mut input = bytes;
fn instructions<'input, E: ParseError<&'input [u8]>>(
input: &'input [u8],
) -> IResult<&'input [u8], Instruction, E> {
let (mut input, opcode) = byte(input)?;
Ok(match opcode {
0x00 => {
consume!((input, argument_0) = leb(input)?);
(input, Instruction::ArgumentGet(argument_0))
}
0x01 => {
consume!((input, argument_0) = leb(input)?);
(input, Instruction::Call(argument_0))
}
0x02 => {
consume!((input, argument_0) = string(input)?);
(input, Instruction::CallExport(argument_0))
}
0x03 => (input, Instruction::ReadUtf8),
0x04 => {
consume!((input, argument_0) = string(input)?);
(input, Instruction::WriteUtf8(argument_0))
}
0x05 => {
consume!((input, argument_0) = ty(input)?);
(input, Instruction::AsWasm(argument_0))
}
0x06 => {
consume!((input, argument_0) = ty(input)?);
(input, Instruction::AsInterface(argument_0))
}
0x07 => (input, Instruction::TableRefAdd),
0x08 => (input, Instruction::TableRefGet),
0x09 => {
consume!((input, argument_0) = leb(input)?);
(input, Instruction::CallMethod(argument_0))
}
0x0a => {
consume!((input, argument_0) = ty(input)?);
(input, Instruction::MakeRecord(argument_0))
}
0x0c => {
consume!((input, argument_0) = leb(input)?);
consume!((input, argument_1) = leb(input)?);
(input, Instruction::GetField(argument_0, argument_1))
}
0x0d => {
consume!((input, argument_0) = ty(input)?);
consume!((input, argument_1) = leb(input)?);
(input, Instruction::Const(argument_0, argument_1))
}
0x0e => {
consume!((input, argument_0) = leb(input)?);
(input, Instruction::FoldSeq(argument_0))
}
_ => return Err(Err::Error(make_error(input, ErrorKind::ParseTo))),
})
}
pub fn exports<'input, E: ParseError<&'input [u8]>>(
input: &'input [u8],
) -> IResult<&'input [u8], Vec<Export>, E> {
let mut input = input;
let mut exports = vec![];
consume!((input, number_of_exports) = leb(input)?);
for _ in 0..number_of_exports {
consume!((input, export_name) = string(input)?);
consume!((input, export_input_types) = list(input, ty)?);
consume!((input, export_output_types) = list(input, ty)?);
exports.push(Export {
name: export_name,
input_types: export_input_types,
output_types: export_output_types,
});
}
Ok((input, exports))
}
pub fn types<'input, E: ParseError<&'input [u8]>>(
input: &'input [u8],
) -> IResult<&'input [u8], Vec<Type>, E> {
let mut input = input;
let mut types = vec![];
consume!((input, number_of_types) = leb(input)?);
for _ in 0..number_of_types {
consume!((input, type_name) = string(input)?);
consume!((input, type_fields) = list(input, string)?);
consume!((input, type_types) = list(input, ty)?);
types.push(Type {
name: type_name,
fields: type_fields,
types: type_types,
});
}
Ok((input, types))
}
pub fn imported_functions<'input, E: ParseError<&'input [u8]>>(
input: &'input [u8],
) -> IResult<&'input [u8], Vec<ImportedFunction>, E> {
let mut input = input;
let mut imported_functions = vec![];
{
consume!((input, number_of_exports) = leb(input)?);
d!(number_of_exports);
consume!((input, number_of_imported_functions) = leb(input)?);
for _ in 0..number_of_exports {
consume!((input, export_name) = string(input)?);
consume!((input, export_input_types) = list(input, ty)?);
consume!((input, export_output_types) = list(input, ty)?);
for _ in 0..number_of_imported_functions {
consume!((input, imported_function_namespace) = string(input)?);
consume!((input, imported_function_name) = string(input)?);
consume!((input, imported_function_input_types) = list(input, ty)?);
consume!((input, imported_function_output_types) = list(input, ty)?);
exports.push(Export {
name: export_name,
input_types: export_input_types,
output_types: export_output_types,
});
}
imported_functions.push(ImportedFunction {
namespace: imported_function_namespace,
name: imported_function_name,
input_types: imported_function_input_types,
output_types: imported_function_output_types,
});
}
{
consume!((input, number_of_types) = leb(input)?);
d!(number_of_types);
Ok((input, imported_functions))
}
for _ in 0..number_of_types {
consume!((input, type_name) = string(input)?);
consume!((input, type_fields) = list(input, string)?);
consume!((input, type_types) = list(input, ty)?);
pub fn adapters<'input, E: ParseError<&'input [u8]>>(
input: &'input [u8],
) -> IResult<&'input [u8], Vec<Adapter>, E> {
let mut input = input;
let mut adapters = vec![];
types.push(Type {
name: type_name,
fields: type_fields,
types: type_types,
});
}
}
consume!((input, number_of_adapters) = leb(input)?);
{
consume!((input, number_of_imported_functions) = leb(input)?);
d!(number_of_imported_functions);
for _ in 0..number_of_adapters {
consume!((input, adapter_kind) = byte(input)?);
let adapter_kind = AdapterKind::try_from(adapter_kind)
.map_err(|_| Err::Error(make_error(input, ErrorKind::ParseTo)))?;
for _ in 0..number_of_imported_functions {
consume!((input, imported_function_namespace) = string(input)?);
consume!((input, imported_function_name) = string(input)?);
consume!((input, imported_function_input_types) = list(input, ty)?);
consume!((input, imported_function_output_types) = list(input, ty)?);
match adapter_kind {
AdapterKind::Import => {
consume!((input, adapter_namespace) = string(input)?);
consume!((input, adapter_name) = string(input)?);
consume!((input, adapter_input_types) = list(input, ty)?);
consume!((input, adapter_output_types) = list(input, ty)?);
consume!((input, adapter_instructions) = list(input, instructions)?);
imported_functions.push(ImportedFunction {
namespace: imported_function_namespace,
name: imported_function_name,
input_types: imported_function_input_types,
output_types: imported_function_output_types,
});
}
}
adapters.push(Adapter::Import {
namespace: adapter_namespace,
name: adapter_name,
input_types: adapter_input_types,
output_types: adapter_output_types,
instructions: adapter_instructions,
});
}
{
consume!((input, number_of_adapters) = leb(input)?);
d!(number_of_adapters);
AdapterKind::Export => {
consume!((input, adapter_name) = string(input)?);
consume!((input, adapter_input_types) = list(input, ty)?);
consume!((input, adapter_output_types) = list(input, ty)?);
consume!((input, adapter_instructions) = list(input, instructions)?);
for _ in 0..number_of_adapters {
consume!((input, adapter_kind) = byte(input)?);
let adapter_kind = AdapterKind::try_from(adapter_kind)
.map_err(|_| Err::Error(make_error(input, ErrorKind::ParseTo)))?;
d!(&adapter_kind);
adapters.push(Adapter::Export {
name: adapter_name,
input_types: adapter_input_types,
output_types: adapter_output_types,
instructions: adapter_instructions,
});
}
match adapter_kind {
AdapterKind::Import => {
consume!((input, adapter_namespace) = string(input)?);
d!(adapter_namespace);
AdapterKind::HelperFunction => {
consume!((input, adapter_name) = string(input)?);
consume!((input, adapter_input_types) = list(input, ty)?);
consume!((input, adapter_output_types) = list(input, ty)?);
consume!((input, adapter_instructions) = list(input, instructions)?);
consume!((input, adapter_name) = string(input)?);
d!(adapter_name);
consume!((input, adapter_input_types) = list(input, ty)?);
d!(adapter_input_types);
consume!((input, adapter_output_types) = list(input, ty)?);
d!(adapter_output_types);
}
_ => println!("kind = {:?}", adapter_kind),
adapters.push(Adapter::HelperFunction {
name: adapter_name,
input_types: adapter_input_types,
output_types: adapter_output_types,
instructions: adapter_instructions,
});
}
}
}
d!(exports);
d!(types);
d!(imported_functions);
Ok((input, adapters))
}
Ok((&[] as &[u8], true))
pub fn forwards<'input, E: ParseError<&'input [u8]>>(
input: &'input [u8],
) -> IResult<&'input [u8], Vec<Forward>, E> {
let mut input = input;
let mut forwards = vec![];
consume!((input, number_of_forwards) = leb(input)?);
for _ in 0..number_of_forwards {
consume!((input, forward_name) = string(input)?);
forwards.push(Forward { name: forward_name });
}
Ok((input, forwards))
}
pub fn parse<'input, E: ParseError<&'input [u8]>>(
bytes: &'input [u8],
) -> IResult<&'input [u8], Interfaces, E> {
let mut input = bytes;
consume!((input, exports) = exports(input)?);
consume!((input, types) = types(input)?);
consume!((input, imported_functions) = imported_functions(input)?);
consume!((input, adapters) = adapters(input)?);
consume!((input, forwards) = forwards(input)?);
Ok((
input,
Interfaces {
exports,
types,
imported_functions,
adapters,
forwards,
},
))
}
#[cfg(test)]
mod tests {
use super::parse;
use super::*;
use std::fs;
use wasmer_clif_backend::CraneliftCompiler;
use wasmer_runtime_core as runtime;
@ -326,6 +529,71 @@ mod tests {
.unwrap()
.as_slice();
parse::<()>(custom_section_bytes);
match parse::<()>(custom_section_bytes) {
Ok((remainder, interfaces)) => {
assert!(remainder.is_empty());
assert_eq!(
interfaces,
Interfaces {
exports: vec![
Export {
name: "strlen",
input_types: vec![InterfaceType::I32],
output_types: vec![InterfaceType::I32]
},
Export {
name: "write_null_byte",
input_types: vec![InterfaceType::I32, InterfaceType::I32],
output_types: vec![InterfaceType::I32],
}
],
types: vec![],
imported_functions: vec![
ImportedFunction {
namespace: "host",
name: "console_log",
input_types: vec![InterfaceType::String],
output_types: vec![],
},
ImportedFunction {
namespace: "host",
name: "document_title",
input_types: vec![],
output_types: vec![InterfaceType::String],
}
],
adapters: vec![
Adapter::Import {
namespace: "host",
name: "console_log",
input_types: vec![InterfaceType::I32],
output_types: vec![],
instructions: vec![
Instruction::ArgumentGet(0),
Instruction::ArgumentGet(0),
Instruction::CallExport("strlen"),
Instruction::ReadUtf8,
Instruction::Call(0),
]
},
Adapter::Import {
namespace: "host",
name: "document_title",
input_types: vec![],
output_types: vec![InterfaceType::I32],
instructions: vec![
Instruction::Call(1),
Instruction::WriteUtf8("alloc"),
Instruction::CallExport("write_null_byte"),
]
}
],
forwards: vec![Forward { name: "main" }]
}
);
}
Err(_) => assert!(false),
}
}
}