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feat(interface-types) Re-implement Type.

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The semantics of “types” have changed since the previous draft. Now, a
type is like a regular WebAssembly type but with Interface Types.
This commit is contained in:
Ivan Enderlin
2020-02-24 16:23:31 +01:00
parent 165a8ca585
commit 410d8d4476
6 changed files with 137 additions and 130 deletions
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43
src/encoders/binary.rs
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@ -147,14 +147,13 @@ where
/// Encode a `Type` into bytes.
///
/// Decoder is in `decoders::binary::types`.
impl<W> ToBytes<W> for Type<'_>
impl<W> ToBytes<W> for Type
where
W: Write,
{
fn to_bytes(&self, writer: &mut W) -> io::Result<()> {
self.name.to_bytes(writer)?;
self.field_names().to_bytes(writer)?;
self.field_types().to_bytes(writer)?;
self.inputs.to_bytes(writer)?;
self.outputs.to_bytes(writer)?;
Ok(())
}
@ -468,22 +467,16 @@ mod tests {
#[test]
fn test_type() {
assert_to_bytes!(
Type::new(
"a",
vec!["b", "c"],
vec![InterfaceType::I32, InterfaceType::I64],
),
Type {
inputs: vec![InterfaceType::I32, InterfaceType::I64],
outputs: vec![InterfaceType::S32],
},
&[
0x01, // string of length 1
0x61, // "a"
0x02, // list of 2 items
0x01, // string of length 1
0x62, // "b"
0x01, // string of length 1
0x63, // "c"
0x02, // list of 2 items
0x0c, // I32
0x0d, // I64
0x01, // list of 1 items
0x02, // I64
]
);
}
@ -571,11 +564,10 @@ mod tests {
input_types: vec![InterfaceType::I32],
output_types: vec![InterfaceType::I32],
}],
types: vec![Type::new(
"ab",
vec!["cd", "e"],
vec![InterfaceType::I32, InterfaceType::I32],
)],
types: vec![Type {
inputs: vec![InterfaceType::I32, InterfaceType::I32],
outputs: vec![InterfaceType::S32],
}],
imports: vec![Import {
namespace: "a",
name: "b",
@ -599,16 +591,11 @@ mod tests {
0x01, // list of 1 item
0x0c, // I32
0x01, // 1 type
0x02, // string of 2 bytes
0x61, 0x62, // "a", "b"
0x02, // list of 2 items
0x02, // string of 2 bytes
0x63, 0x64, // "c", "d"
0x01, // string of 1 byte
0x65, // "e"
0x02, // list of 2 items
0x0c, // I32
0x0c, // I32
0x01, // list of 1 item
0x02, // S32
0x01, // 1 import
0x01, // string of 1 byte
0x61, // "a"