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LibWasm: Load and instantiate tables

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This commit is a fairly large refactor, mainly because it unified the
two different ways that existed to represent references.
Now Reference values are also a kind of value.
It also implements a printer for values/references instead of copying
the implementation everywhere.
This commit is contained in:
Ali Mohammad Pur 2021-06-04 03:30:09 +04:30 • committed by Ali Mohammad Pur
parent c392a0cf7f
commit be62e4d1d7
10 changed files with 350 additions and 192 deletions
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28
Userland/Libraries/LibWasm/Parser/Parser.cpp
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@ -948,7 +948,7 @@ ParseResult<ElementSection::SegmentType0> ElementSection::SegmentType0::parse(In
if (indices.is_error())
return indices.error();
return SegmentType0 { ValueType(ValueType::FunctionReference), indices.release_value(), Active { 0, expression.release_value() } };
return SegmentType0 { indices.release_value(), Active { 0, expression.release_value() } };
}
ParseResult<ElementSection::SegmentType1> ElementSection::SegmentType1::parse(InputStream& stream)
@ -963,7 +963,7 @@ ParseResult<ElementSection::SegmentType1> ElementSection::SegmentType1::parse(In
if (indices.is_error())
return indices.error();
return SegmentType1 { ValueType(ValueType::FunctionReference), indices.release_value() };
return SegmentType1 { indices.release_value() };
}
ParseResult<ElementSection::SegmentType2> ElementSection::SegmentType2::parse(InputStream& stream)
@ -1008,7 +1008,7 @@ ParseResult<ElementSection::SegmentType7> ElementSection::SegmentType7::parse(In
return ParseError::NotImplemented;
}
ParseResult<ElementSection::AnyElementType> ElementSection::Element::parse(InputStream& stream)
ParseResult<ElementSection::Element> ElementSection::Element::parse(InputStream& stream)
{
ScopeLogger<WASM_BINPARSER_DEBUG> logger("Element");
u8 tag;
@ -1021,49 +1021,55 @@ ParseResult<ElementSection::AnyElementType> ElementSection::Element::parse(Input
if (auto result = SegmentType0::parse(stream); result.is_error()) {
return result.error();
} else {
return AnyElementType { result.release_value() };
Vector<Instruction> instructions;
for (auto& index : result.value().function_indices)
instructions.empend(Instructions::ref_func, index);
return Element { ValueType(ValueType::FunctionReference), { Expression { move(instructions) } }, move(result.value().mode) };
}
case 0x01:
if (auto result = SegmentType1::parse(stream); result.is_error()) {
return result.error();
} else {
return AnyElementType { result.release_value() };
Vector<Instruction> instructions;
for (auto& index : result.value().function_indices)
instructions.empend(Instructions::ref_func, index);
return Element { ValueType(ValueType::FunctionReference), { Expression { move(instructions) } }, Passive {} };
}
case 0x02:
if (auto result = SegmentType2::parse(stream); result.is_error()) {
return result.error();
} else {
return AnyElementType { result.release_value() };
return ParseError::NotImplemented;
}
case 0x03:
if (auto result = SegmentType3::parse(stream); result.is_error()) {
return result.error();
} else {
return AnyElementType { result.release_value() };
return ParseError::NotImplemented;
}
case 0x04:
if (auto result = SegmentType4::parse(stream); result.is_error()) {
return result.error();
} else {
return AnyElementType { result.release_value() };
return ParseError::NotImplemented;
}
case 0x05:
if (auto result = SegmentType5::parse(stream); result.is_error()) {
return result.error();
} else {
return AnyElementType { result.release_value() };
return ParseError::NotImplemented;
}
case 0x06:
if (auto result = SegmentType6::parse(stream); result.is_error()) {
return result.error();
} else {
return AnyElementType { result.release_value() };
return ParseError::NotImplemented;
}
case 0x07:
if (auto result = SegmentType7::parse(stream); result.is_error()) {
return result.error();
} else {
return AnyElementType { result.release_value() };
return ParseError::NotImplemented;
}
default:
return ParseError::InvalidTag;