{

Ref<NameSection> nameSection = NameSection::create();

WASM_ALLOCATOR_FAIL_IF(!nameSection->functionNames.tryReserveCapacity(m_info.functionIndexSpaceSize()), "can't allocate enough memory for function names"_s);

nameSection->functionNames.resize(m_info.functionIndexSpaceSize());

for (size_t payloadNumber = 0; m_offset < source().size(); ++payloadNumber) {

uint8_t nameType;

uint32_t payloadLength;

WASM_PARSER_FAIL_IF(!parseUInt7(nameType), "can't get name type for payload "_s, payloadNumber);

WASM_PARSER_FAIL_IF(!parseVarUInt32(payloadLength), "can't get payload length for payload "_s, payloadNumber);

WASM_PARSER_FAIL_IF(payloadLength > source().size() - m_offset, "payload length is too big for payload "_s, payloadNumber);

const auto payloadStart = m_offset;

if (!isValidNameType(nameType)) {

// Unknown name section entries are simply ignored. This allows us to support newer toolchains without breaking older features.

m_offset += payloadLength;

continue;

}

switch (static_cast<NameType>(nameType)) {

case NameType::Module: {

uint32_t nameLen;

Name nameString;

WASM_PARSER_FAIL_IF(!parseVarUInt32(nameLen), "can't get module's name length for payload "_s, payloadNumber);

WASM_ALLOCATOR_FAIL_IF(!consumeUTF8String(nameString, nameLen), "can't get module's name of length "_s, nameLen, " for payload "_s, payloadNumber);

nameSection->moduleName = WTF::move(nameString);

break;

}

case NameType::Function: {

uint32_t count;

WASM_PARSER_FAIL_IF(!parseVarUInt32(count), "can't get function count for payload "_s, payloadNumber);

for (uint32_t function = 0; function < count; ++function) {

uint32_t index;

uint32_t nameLen;

Name nameString;

WASM_PARSER_FAIL_IF(!parseVarUInt32(index), "can't get function "_s, function, " index for payload "_s, payloadNumber);

WASM_PARSER_FAIL_IF(m_info.functionIndexSpaceSize() <= index, "function "_s, function, " index "_s, index, " is larger than function index space "_s, m_info.functionIndexSpaceSize(), " for payload "_s, payloadNumber);

WASM_PARSER_FAIL_IF(!parseVarUInt32(nameLen), "can't get functions "_s, function, "'s name length for payload "_s, payloadNumber);

WASM_ALLOCATOR_FAIL_IF(!consumeUTF8String(nameString, nameLen), "can't get function "_s, function, "'s name of length "_s, nameLen, " for payload "_s, payloadNumber);

nameSection->functionNames[index] = WTF::move(nameString);

}

break;

}

case NameType::Local: {

// Ignore local names for now, we don't do anything with them but we still need to parse them in order to properly ignore them.

uint32_t functionCount;

WASM_PARSER_FAIL_IF(!parseVarUInt32(functionCount), "can't get function count for local name payload "_s, payloadNumber);

for (uint32_t function = 0; function < functionCount; ++function) {

uint32_t functionIndex;

uint32_t count;

WASM_PARSER_FAIL_IF(!parseVarUInt32(functionIndex), "can't get local's function index for payload "_s, payloadNumber);

WASM_PARSER_FAIL_IF(!parseVarUInt32(count), "can't get local count for payload "_s, payloadNumber);

for (uint32_t local = 0; local < count; ++local) {

uint32_t index;

uint32_t nameLen;

Name nameString;

WASM_PARSER_FAIL_IF(!parseVarUInt32(index), "can't get local "_s, local, " index for payload "_s, payloadNumber);

WASM_PARSER_FAIL_IF(!parseVarUInt32(nameLen), "can't get local "_s, local, "'s name length for payload "_s, payloadNumber);

WASM_ALLOCATOR_FAIL_IF(!consumeUTF8String(nameString, nameLen), "can't get local "_s, local, "'s name of length "_s, nameLen, " for payload "_s, payloadNumber);

}

}

break;

}

}

WASM_PARSER_FAIL_IF(payloadStart + payloadLength != m_offset, "payload for name section is not correct size, expected "_s, payloadLength, " got "_s, m_offset - payloadStart);

}

return nameSection;