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Array assignment

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This commit is contained in:
Rafał Grodziński
2025-07-10 14:28:13 +09:00
parent 5db6703d48
commit 8d50e28ac8
4 changed files with 45 additions and 8 deletions
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26
src/Parser/Parser.cpp
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@@ -250,17 +250,35 @@ shared_ptr<Statement> Parser::matchStatementBlock(vector<TokenKind> terminalToke
}
shared_ptr<Statement> Parser::matchStatementAssignment() {
if (!tryMatchingTokenKinds({TokenKind::IDENTIFIER, TokenKind::LEFT_ARROW}, true, false))
int startIndex = currentIndex;
if (!tryMatchingTokenKinds({TokenKind::IDENTIFIER}, true, false))
return nullptr;
shared_ptr<Token> identifierToken = tokens.at(currentIndex++);
currentIndex++; // arrow
shared_ptr<Expression> indexExpression;
if (tryMatchingTokenKinds({TokenKind::LEFT_SQUARE_BRACKET}, true, true)) {
indexExpression = nextExpression();
if (indexExpression == nullptr)
return nullptr;
if (!tryMatchingTokenKinds({TokenKind::RIGHT_SQUARE_BRACKET}, true, true)) {
markError(TokenKind::RIGHT_SQUARE_BRACKET, {});
return nullptr;
}
}
// assignment requires left arrow, otherwise abort
if (!tryMatchingTokenKinds({TokenKind::LEFT_ARROW}, true, true)) {
currentIndex = startIndex;
return nullptr;
}
shared_ptr<Expression> expression = nextExpression();
if (expression == nullptr)
return nullptr;
return make_shared<StatementAssignment>(identifierToken->getLexme(), expression);
return make_shared<StatementAssignment>(identifierToken->getLexme(), indexExpression, expression);
}
shared_ptr<Statement> Parser::matchStatementReturn() {