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Add var assign expression

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Signed-off-by: CHatingPython <chatingpython@gmail.com>
This commit is contained in:
CHatingPython
2026-05-30 12:50:44 +02:00
committed by CHatingPython
parent 8d162f926a
commit f4efb53531
6 changed files with 162 additions and 28 deletions
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furc/test/parser.cpp
+58
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@@ -213,4 +213,62 @@ TEST(Parser, Paren) {
EXPECT_VARREAD(inc->get_node(), "x");
}
TEST(Parser, Assignment) {
parser parser("<TEMP>", "func main() { x = 10; }");
auto program = parser.parse();
EXPECT_TRUE(program.present());
EXPECT_EQ(program->declarations().size(), 1);
auto func = program->declarations()[0];
EXPECT_TRUE(func.present());
EXPECT_EQ(func->declaration_type(), declaration_node_t::FunctionDefinition);
function_definition_node_h funcDef = func;
EXPECT_EQ(funcDef->name()->string, "main");
EXPECT_EQ(funcDef->body()->statements.size(), 1);
EXPECT_EQ(funcDef->body()->statements[0]->statement_type(), statement_node_t::Expression);
expression_node_h expr = funcDef->body()->statements[0];
EXPECT_EQ(expr->expression_type(), expression_node_t::VarAssign);
var_assign_expression_node_h assign = expr;
EXPECT_EQ(assign->compound(), binop_expression_node_t::None);
expression_node_h lhs = assign->lhs();
EXPECT_EQ(lhs->expression_type(), expression_node_t::VarRead);
var_read_expression_node_h varRead = lhs;
EXPECT_EQ(varRead->get_name(), "x");
expression_node_h rhs = assign->rhs();
EXPECT_EQ(rhs->expression_type(), expression_node_t::Literal);
EXPECT_INTLIT(rhs, 10);
}
TEST(Parser, CompoundAssignment) {
parser parser("<TEMP>", "func main() { x += 10; }");
auto program = parser.parse();
EXPECT_TRUE(program.present());
EXPECT_EQ(program->declarations().size(), 1);
auto func = program->declarations()[0];
EXPECT_TRUE(func.present());
EXPECT_EQ(func->declaration_type(), declaration_node_t::FunctionDefinition);
function_definition_node_h funcDef = func;
EXPECT_EQ(funcDef->name()->string, "main");
EXPECT_EQ(funcDef->body()->statements.size(), 1);
EXPECT_EQ(funcDef->body()->statements[0]->statement_type(), statement_node_t::Expression);
expression_node_h expr = funcDef->body()->statements[0];
EXPECT_EQ(expr->expression_type(), expression_node_t::VarAssign);
var_assign_expression_node_h assign = expr;
EXPECT_EQ(assign->compound(), binop_expression_node_t::Add);
expression_node_h lhs = assign->lhs();
EXPECT_EQ(lhs->expression_type(), expression_node_t::VarRead);
var_read_expression_node_h varRead = lhs;
EXPECT_EQ(varRead->get_name(), "x");
expression_node_h rhs = assign->rhs();
EXPECT_EQ(rhs->expression_type(), expression_node_t::Literal);
EXPECT_INTLIT(rhs, 10);
}
} // namespace