KPGPMC/furlang
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Add unary expression parsing

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Signed-off-by: CHatingPython <chatingpython@gmail.com>
This commit is contained in:
CHatingPython
2026-05-29 20:09:09 +02:00
committed by CHatingPython
parent 86988ffea5
commit f178b09f89
8 changed files with 286 additions and 69 deletions
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furc/src/ast.cpp
+28 -4
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@@ -14,7 +14,7 @@ bool literal_node::equal(const node& rhs) const {
std::ostream& integer_literal_node::print(std::ostream& os) const {
if (m_value.has_error()) return os << m_value.error();
return os << "integer literal (" << *m_value << ")";
return os << *m_value;
}
bool integer_literal_node::equal(const node& rhs) const {
@@ -23,7 +23,7 @@ bool integer_literal_node::equal(const node& rhs) const {
std::ostream& string_literal_node::print(std::ostream& os) const {
if (m_value.has_error()) return os << m_value.error();
return os << "string literal (" << *m_value << ")";
return os << '"' << *m_value << '"';
}
bool string_literal_node::equal(const node& rhs) const {
@@ -34,6 +34,30 @@ bool expression_node::equal(const node& rhs) const {
return expression_type() == reinterpret_cast<const expression_node&>(rhs).expression_type();
}
std::ostream& operator<<(std::ostream& os, unaryop_expression_node_t type) {
switch (type) {
case unaryop_expression_node_t::Positive: return os << "+";
case unaryop_expression_node_t::Negative: return os << "-";
case unaryop_expression_node_t::PrefixIncrement:
case unaryop_expression_node_t::PostfixIncrement: return os << "++";
case unaryop_expression_node_t::PrefixDecrement:
case unaryop_expression_node_t::PostfixDecrement: return os << "--";
}
return os;
}
std::ostream& unaryop_expression_node::print(std::ostream& os) const {
switch (m_type) {
case unaryop_expression_node_t::Positive:
case unaryop_expression_node_t::Negative:
case unaryop_expression_node_t::PrefixIncrement:
case unaryop_expression_node_t::PrefixDecrement: return os << '(' << m_type << *m_node << ')';
case unaryop_expression_node_t::PostfixIncrement:
case unaryop_expression_node_t::PostfixDecrement: return os << '(' << *m_node << m_type << ')';
}
return os;
}
std::ostream& operator<<(std::ostream& os, binop_expression_node_t type) {
switch (type) {
case binop_expression_node_t::Add: return os << '+';
@@ -45,7 +69,7 @@ std::ostream& operator<<(std::ostream& os, binop_expression_node_t type) {
}
std::ostream& binop_expression_node::print(std::ostream& os) const {
return os << *m_lhs << ' ' << m_type << ' ' << *m_rhs;
return os << '(' << *m_lhs << ' ' << m_type << ' ' << *m_rhs << ')';
}
bool binop_expression_node::equal(const node& rhsNode) const {
@@ -87,7 +111,7 @@ bool statement_node::equal(const node& rhs) const {
std::ostream& return_statement_node::print(std::ostream& os) const {
os << "return statement";
if (m_value.present()) return os << " (" << *m_value << ')';
if (m_value.present()) return os << ' ' << *m_value;
return os;
}