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Implemented union support into the pattern language

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WerWolv
2020-11-20 21:29:28 +01:00
parent e3cb078306
commit 48296775ae
8 changed files with 186 additions and 3 deletions
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33
source/lang/parser.cpp
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@@ -75,6 +75,30 @@ namespace hex::lang {
return new ASTNodeStruct(structName, nodes);
}
ASTNode* parseUnion(TokenIter &curr) {
const std::string &unionName = curr[-2].identifierToken.identifier;
std::vector<ASTNode*> nodes;
while (!tryConsume(curr, {Token::Type::ScopeClose})) {
if (tryConsume(curr, {Token::Type::Type, Token::Type::Identifier, Token::Type::EndOfExpression}))
nodes.push_back(parseBuiltinVariableDecl(curr));
else if (tryConsume(curr, {Token::Type::Identifier, Token::Type::Identifier, Token::Type::EndOfExpression}))
nodes.push_back(parseCustomTypeVariableDecl(curr));
else if (tryConsume(curr, {Token::Type::Type, Token::Type::Identifier, Token::Type::ArrayOpen, Token::Type::Integer, Token::Type::ArrayClose, Token::Type::EndOfExpression}))
nodes.push_back(parseBuiltinArrayDecl(curr));
else if (tryConsume(curr, {Token::Type::Identifier, Token::Type::Identifier, Token::Type::ArrayOpen, Token::Type::Integer, Token::Type::ArrayClose, Token::Type::EndOfExpression}))
nodes.push_back(parseCustomTypeArrayDecl(curr));
else break;
}
if (!tryConsume(curr, {Token::Type::EndOfExpression})) {
for(auto &node : nodes) delete node;
return nullptr;
}
return new ASTNodeUnion(unionName, nodes);
}
ASTNode* parseEnum(TokenIter &curr) {
const std::string &enumName = curr[-4].identifierToken.identifier;
const Token::TypeToken::Type underlyingType = curr[-2].typeToken.type;
@@ -183,6 +207,15 @@ namespace hex::lang {
}
program.push_back(structAst);
} else if (curr[-3].keywordToken.keyword == Token::KeywordToken::Keyword::Union) {
auto unionAst = parseUnion(curr);
if (unionAst == nullptr) {
for(auto &node : program) delete node;
return { };
}
program.push_back(unionAst);
} else if (curr[-3].keywordToken.keyword == Token::KeywordToken::Keyword::Bitfield) {
auto bitfieldAst = parseBitField(curr);