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patterns: Added function while loops

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WerWolv
2021-06-21 00:21:38 +02:00
parent c9fae32ddf
commit fde5b39495
4 changed files with 66 additions and 6 deletions
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32
plugins/libimhex/source/lang/parser.cpp
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@@ -410,8 +410,10 @@ namespace hex::lang {
else if (MATCHES(sequence(KEYWORD_IF, SEPARATOR_ROUNDBRACKETOPEN))) {
statement = parseFunctionConditional();
needsSemicolon = false;
}
else
} else if (MATCHES(sequence(KEYWORD_WHILE, SEPARATOR_ROUNDBRACKETOPEN))) {
statement = parseFunctionWhileLoop();
needsSemicolon = false;
} else
throwParseError("invalid sequence", 0);
if (needsSemicolon && !MATCHES(sequence(SEPARATOR_ENDOFEXPRESSION))) {
@@ -471,6 +473,30 @@ namespace hex::lang {
return new ASTNodeConditionalStatement(condition, trueBody, falseBody);
}
ASTNode* Parser::parseFunctionWhileLoop() {
auto condition = parseMathematicalExpression();
std::vector<ASTNode*> body;
auto cleanup = SCOPE_GUARD {
delete condition;
for (auto &statement : body)
delete statement;
};
if (MATCHES(sequence(SEPARATOR_ROUNDBRACKETCLOSE, SEPARATOR_CURLYBRACKETOPEN))) {
while (!MATCHES(sequence(SEPARATOR_CURLYBRACKETCLOSE))) {
body.push_back(parseFunctionStatement());
}
} else if (MATCHES(sequence(SEPARATOR_ROUNDBRACKETCLOSE))) {
body.push_back(parseFunctionStatement());
} else
throwParseError("expected body of conditional statement");
cleanup.release();
return new ASTNodeWhileStatement(condition, body);
}
/* Control flow */
// if ((parseMathematicalExpression)) { (parseMember) }
@@ -521,7 +547,7 @@ namespace hex::lang {
cleanup.release();
return new ASTNodeWhileStatement(condition);
return new ASTNodeWhileStatement(condition, { });
}
/* Type declarations */