Rava/parser/parser_expressions.c

#define _POSIX_C_SOURCE 200809L
#include "parser.h"
#include <stdlib.h>
#include <string.h>

extern void _rava_parser_advance(RavaParser_t *parser);
extern bool _rava_parser_check(RavaParser_t *parser, RavaTokenType_e type);
extern bool _rava_parser_match(RavaParser_t *parser, RavaTokenType_e type);
extern bool _rava_parser_expect(RavaParser_t *parser, RavaTokenType_e type, const char *message);
extern RavaASTNode_t* _rava_parser_parse_type(RavaParser_t *parser);

RavaASTNode_t* _rava_parser_parse_expression(RavaParser_t *parser);
RavaASTNode_t* _rava_parser_parse_array_initializer(RavaParser_t *parser);
static RavaASTNode_t* _rava_parser_parse_unary(RavaParser_t *parser);

static bool _is_primitive_type_token(RavaTokenType_e type) {
    return type == RAVA_TOKEN_KEYWORD_INT ||
           type == RAVA_TOKEN_KEYWORD_LONG ||
           type == RAVA_TOKEN_KEYWORD_DOUBLE ||
           type == RAVA_TOKEN_KEYWORD_FLOAT ||
           type == RAVA_TOKEN_KEYWORD_BOOLEAN ||
           type == RAVA_TOKEN_KEYWORD_CHAR ||
           type == RAVA_TOKEN_KEYWORD_BYTE ||
           type == RAVA_TOKEN_KEYWORD_SHORT;
}

static RavaASTNode_t* _rava_parser_parse_primary(RavaParser_t *parser) {
    RavaASTNode_t *node = NULL;

    if (_rava_parser_check(parser, RAVA_TOKEN_LITERAL_INTEGER) ||
        _rava_parser_check(parser, RAVA_TOKEN_LITERAL_LONG) ||
        _rava_parser_check(parser, RAVA_TOKEN_LITERAL_FLOAT) ||
        _rava_parser_check(parser, RAVA_TOKEN_LITERAL_DOUBLE) ||
        _rava_parser_check(parser, RAVA_TOKEN_LITERAL_STRING) ||
        _rava_parser_check(parser, RAVA_TOKEN_LITERAL_CHARACTER) ||
        _rava_parser_check(parser, RAVA_TOKEN_LITERAL_TRUE) ||
        _rava_parser_check(parser, RAVA_TOKEN_LITERAL_FALSE) ||
        _rava_parser_check(parser, RAVA_TOKEN_LITERAL_NULL)) {

        node = rava_ast_node_create(RAVA_AST_LITERAL_EXPR,
                                    parser->current_token->line,
                                    parser->current_token->column);
        node->data.literal.literal_type = parser->current_token->type;
        node->data.literal.value = parser->current_token->value;

        if (parser->current_token->type == RAVA_TOKEN_LITERAL_STRING) {
            node->data.literal.value.string_value = strdup(parser->current_token->value.string_value);
        }

        _rava_parser_advance(parser);
        return node;
    }

    if (_rava_parser_check(parser, RAVA_TOKEN_IDENTIFIER)) {
        node = rava_ast_node_create(RAVA_AST_IDENTIFIER_EXPR,
                                    parser->current_token->line,
                                    parser->current_token->column);
        node->data.identifier.name = strdup(parser->current_token->lexeme);
        _rava_parser_advance(parser);
        return node;
    }

    if (_rava_parser_match(parser, RAVA_TOKEN_KEYWORD_THIS)) {
        return rava_ast_node_create(RAVA_AST_THIS_EXPR,
                                    parser->current_token->line,
                                    parser->current_token->column);
    }

    if (_rava_parser_match(parser, RAVA_TOKEN_KEYWORD_SUPER)) {
        return rava_ast_node_create(RAVA_AST_SUPER_EXPR,
                                    parser->current_token->line,
                                    parser->current_token->column);
    }

    if (_rava_parser_match(parser, RAVA_TOKEN_LPAREN)) {
        if (_is_primitive_type_token(parser->current_token->type) &&
            parser->peek_token && parser->peek_token->type == RAVA_TOKEN_RPAREN) {
            RavaASTNode_t *cast_node = rava_ast_node_create(RAVA_AST_CAST_EXPR,
                                                           parser->current_token->line,
                                                           parser->current_token->column);
            cast_node->data.cast.type = _rava_parser_parse_type(parser);
            _rava_parser_expect(parser, RAVA_TOKEN_RPAREN, "Expected ')' after type in cast");
            cast_node->data.cast.expression = _rava_parser_parse_unary(parser);
            return cast_node;
        }
        RavaASTNode_t *expr = _rava_parser_parse_expression(parser);
        _rava_parser_expect(parser, RAVA_TOKEN_RPAREN, "Expected ')' after expression");
        return expr;
    }

    if (_rava_parser_match(parser, RAVA_TOKEN_KEYWORD_NEW)) {
        node = rava_ast_node_create(RAVA_AST_NEW_EXPR,
                                    parser->current_token->line,
                                    parser->current_token->column);
        node->data.new_expr.type = _rava_parser_parse_type(parser);

        if (_rava_parser_match(parser, RAVA_TOKEN_LBRACKET)) {
            size_t args_capacity = 4;
            node->data.new_expr.arguments = malloc(sizeof(RavaASTNode_t*) * args_capacity);
            node->data.new_expr.arguments_count = 0;

            if (!_rava_parser_check(parser, RAVA_TOKEN_RBRACKET)) {
                node->data.new_expr.arguments[node->data.new_expr.arguments_count++] =
                    _rava_parser_parse_expression(parser);
            }
            _rava_parser_expect(parser, RAVA_TOKEN_RBRACKET, "Expected ']' after array size");

            while (_rava_parser_match(parser, RAVA_TOKEN_LBRACKET)) {
                if (node->data.new_expr.arguments_count >= args_capacity) {
                    args_capacity *= 2;
                    node->data.new_expr.arguments = realloc(node->data.new_expr.arguments,
                                                           sizeof(RavaASTNode_t*) * args_capacity);
                }
                if (!_rava_parser_check(parser, RAVA_TOKEN_RBRACKET)) {
                    node->data.new_expr.arguments[node->data.new_expr.arguments_count++] =
                        _rava_parser_parse_expression(parser);
                }
                _rava_parser_expect(parser, RAVA_TOKEN_RBRACKET, "Expected ']'");
            }

            if (node->data.new_expr.type) {
                node->data.new_expr.type->data.type.is_array = true;
                node->data.new_expr.type->data.type.array_dimensions = (int)node->data.new_expr.arguments_count;
            }
            return node;
        }

        _rava_parser_expect(parser, RAVA_TOKEN_LPAREN, "Expected '(' or '[' after type in new expression");

        size_t args_capacity = 4;
        node->data.new_expr.arguments = malloc(sizeof(RavaASTNode_t*) * args_capacity);
        node->data.new_expr.arguments_count = 0;

        if (!_rava_parser_check(parser, RAVA_TOKEN_RPAREN)) {
            do {
                if (node->data.new_expr.arguments_count >= args_capacity) {
                    args_capacity *= 2;
                    node->data.new_expr.arguments = realloc(node->data.new_expr.arguments,
                                                           sizeof(RavaASTNode_t*) * args_capacity);
                }
                node->data.new_expr.arguments[node->data.new_expr.arguments_count++] =
                    _rava_parser_parse_expression(parser);
            } while (_rava_parser_match(parser, RAVA_TOKEN_COMMA));
        }

        _rava_parser_expect(parser, RAVA_TOKEN_RPAREN, "Expected ')' after arguments");
        return node;
    }

    parser->had_error = true;
    return NULL;
}

static RavaASTNode_t* _rava_parser_parse_postfix(RavaParser_t *parser) {
    RavaASTNode_t *expr = _rava_parser_parse_primary(parser);

    while (true) {
        if (_rava_parser_match(parser, RAVA_TOKEN_DOT)) {
            if (_rava_parser_check(parser, RAVA_TOKEN_IDENTIFIER)) {
                RavaASTNode_t *member_access = rava_ast_node_create(RAVA_AST_MEMBER_ACCESS_EXPR,
                                                                    parser->current_token->line,
                                                                    parser->current_token->column);
                member_access->data.member_access.object = expr;
                member_access->data.member_access.member = strdup(parser->current_token->lexeme);
                _rava_parser_advance(parser);
                expr = member_access;
            }
        } else if (_rava_parser_match(parser, RAVA_TOKEN_LPAREN)) {
            RavaASTNode_t *call = rava_ast_node_create(RAVA_AST_CALL_EXPR,
                                                       parser->current_token->line,
                                                       parser->current_token->column);
            call->data.call.callee = expr;

            size_t args_capacity = 4;
            call->data.call.arguments = malloc(sizeof(RavaASTNode_t*) * args_capacity);
            call->data.call.arguments_count = 0;

            if (!_rava_parser_check(parser, RAVA_TOKEN_RPAREN)) {
                do {
                    if (call->data.call.arguments_count >= args_capacity) {
                        args_capacity *= 2;
                        call->data.call.arguments = realloc(call->data.call.arguments,
                                                           sizeof(RavaASTNode_t*) * args_capacity);
                    }
                    call->data.call.arguments[call->data.call.arguments_count++] =
                        _rava_parser_parse_expression(parser);
                } while (_rava_parser_match(parser, RAVA_TOKEN_COMMA));
            }

            _rava_parser_expect(parser, RAVA_TOKEN_RPAREN, "Expected ')' after arguments");
            expr = call;
        } else if (_rava_parser_match(parser, RAVA_TOKEN_LBRACKET)) {
            RavaASTNode_t *array_access = rava_ast_node_create(RAVA_AST_ARRAY_ACCESS_EXPR,
                                                               parser->current_token->line,
                                                               parser->current_token->column);
            array_access->data.array_access.array = expr;
            array_access->data.array_access.index = _rava_parser_parse_expression(parser);
            _rava_parser_expect(parser, RAVA_TOKEN_RBRACKET, "Expected ']' after array index");
            expr = array_access;
        } else if (_rava_parser_match(parser, RAVA_TOKEN_INC)) {
            RavaASTNode_t *unary = rava_ast_node_create(RAVA_AST_UNARY_EXPR,
                                                        parser->current_token->line,
                                                        parser->current_token->column);
            unary->data.unary.op = RAVA_UNOP_POSTINC;
            unary->data.unary.operand = expr;
            expr = unary;
        } else if (_rava_parser_match(parser, RAVA_TOKEN_DEC)) {
            RavaASTNode_t *unary = rava_ast_node_create(RAVA_AST_UNARY_EXPR,
                                                        parser->current_token->line,
                                                        parser->current_token->column);
            unary->data.unary.op = RAVA_UNOP_POSTDEC;
            unary->data.unary.operand = expr;
            expr = unary;
        } else {
            break;
        }
    }

    return expr;
}

static RavaASTNode_t* _rava_parser_parse_unary(RavaParser_t *parser) {
    if (_rava_parser_match(parser, RAVA_TOKEN_PLUS)) {
        RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_UNARY_EXPR,
                                                   parser->current_token->line,
                                                   parser->current_token->column);
        node->data.unary.op = RAVA_UNOP_PLUS;
        node->data.unary.operand = _rava_parser_parse_unary(parser);
        return node;
    }

    if (_rava_parser_match(parser, RAVA_TOKEN_MINUS)) {
        RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_UNARY_EXPR,
                                                   parser->current_token->line,
                                                   parser->current_token->column);
        node->data.unary.op = RAVA_UNOP_MINUS;
        node->data.unary.operand = _rava_parser_parse_unary(parser);
        return node;
    }

    if (_rava_parser_match(parser, RAVA_TOKEN_BANG)) {
        RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_UNARY_EXPR,
                                                   parser->current_token->line,
                                                   parser->current_token->column);
        node->data.unary.op = RAVA_UNOP_NOT;
        node->data.unary.operand = _rava_parser_parse_unary(parser);
        return node;
    }

    if (_rava_parser_match(parser, RAVA_TOKEN_TILDE)) {
        RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_UNARY_EXPR,
                                                   parser->current_token->line,
                                                   parser->current_token->column);
        node->data.unary.op = RAVA_UNOP_BITNOT;
        node->data.unary.operand = _rava_parser_parse_unary(parser);
        return node;
    }

    if (_rava_parser_match(parser, RAVA_TOKEN_INC)) {
        RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_UNARY_EXPR,
                                                   parser->current_token->line,
                                                   parser->current_token->column);
        node->data.unary.op = RAVA_UNOP_PREINC;
        node->data.unary.operand = _rava_parser_parse_unary(parser);
        return node;
    }

    if (_rava_parser_match(parser, RAVA_TOKEN_DEC)) {
        RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_UNARY_EXPR,
                                                   parser->current_token->line,
                                                   parser->current_token->column);
        node->data.unary.op = RAVA_UNOP_PREDEC;
        node->data.unary.operand = _rava_parser_parse_unary(parser);
        return node;
    }

    return _rava_parser_parse_postfix(parser);
}

static RavaASTNode_t* _rava_parser_parse_multiplicative(RavaParser_t *parser) {
    RavaASTNode_t *left = _rava_parser_parse_unary(parser);

    while (_rava_parser_check(parser, RAVA_TOKEN_STAR) ||
           _rava_parser_check(parser, RAVA_TOKEN_SLASH) ||
           _rava_parser_check(parser, RAVA_TOKEN_PERCENT)) {

        RavaBinaryOp_e op;
        if (_rava_parser_match(parser, RAVA_TOKEN_STAR)) {
            op = RAVA_BINOP_MUL;
        } else if (_rava_parser_match(parser, RAVA_TOKEN_SLASH)) {
            op = RAVA_BINOP_DIV;
        } else {
            _rava_parser_advance(parser);
            op = RAVA_BINOP_MOD;
        }

        RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_BINARY_EXPR,
                                                   parser->current_token->line,
                                                   parser->current_token->column);
        node->data.binary.op = op;
        node->data.binary.left = left;
        node->data.binary.right = _rava_parser_parse_unary(parser);
        left = node;
    }

    return left;
}

static RavaASTNode_t* _rava_parser_parse_additive(RavaParser_t *parser) {
    RavaASTNode_t *left = _rava_parser_parse_multiplicative(parser);

    while (_rava_parser_check(parser, RAVA_TOKEN_PLUS) ||
           _rava_parser_check(parser, RAVA_TOKEN_MINUS)) {

        RavaBinaryOp_e op = _rava_parser_match(parser, RAVA_TOKEN_PLUS) ?
                           RAVA_BINOP_ADD : RAVA_BINOP_SUB;
        if (op == RAVA_BINOP_SUB) _rava_parser_advance(parser);

        RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_BINARY_EXPR,
                                                   parser->current_token->line,
                                                   parser->current_token->column);
        node->data.binary.op = op;
        node->data.binary.left = left;
        node->data.binary.right = _rava_parser_parse_multiplicative(parser);
        left = node;
    }

    return left;
}

static RavaASTNode_t* _rava_parser_parse_shift(RavaParser_t *parser) {
    RavaASTNode_t *left = _rava_parser_parse_additive(parser);

    while (_rava_parser_check(parser, RAVA_TOKEN_LSHIFT) ||
           _rava_parser_check(parser, RAVA_TOKEN_RSHIFT) ||
           _rava_parser_check(parser, RAVA_TOKEN_URSHIFT)) {

        RavaBinaryOp_e op;
        if (_rava_parser_match(parser, RAVA_TOKEN_LSHIFT)) op = RAVA_BINOP_LSHIFT;
        else if (_rava_parser_match(parser, RAVA_TOKEN_RSHIFT)) op = RAVA_BINOP_RSHIFT;
        else { _rava_parser_advance(parser); op = RAVA_BINOP_URSHIFT; }

        RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_BINARY_EXPR,
                                                   parser->current_token->line,
                                                   parser->current_token->column);
        node->data.binary.op = op;
        node->data.binary.left = left;
        node->data.binary.right = _rava_parser_parse_additive(parser);
        left = node;
    }

    return left;
}

static RavaASTNode_t* _rava_parser_parse_relational(RavaParser_t *parser) {
    RavaASTNode_t *left = _rava_parser_parse_shift(parser);

    while (_rava_parser_check(parser, RAVA_TOKEN_LT) ||
           _rava_parser_check(parser, RAVA_TOKEN_GT) ||
           _rava_parser_check(parser, RAVA_TOKEN_LE) ||
           _rava_parser_check(parser, RAVA_TOKEN_GE) ||
           _rava_parser_check(parser, RAVA_TOKEN_KEYWORD_INSTANCEOF)) {

        if (_rava_parser_match(parser, RAVA_TOKEN_KEYWORD_INSTANCEOF)) {
            RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_INSTANCEOF_EXPR,
                                                       parser->current_token->line,
                                                       parser->current_token->column);
            node->data.instanceof_expr.expression = left;
            if (_rava_parser_check(parser, RAVA_TOKEN_IDENTIFIER)) {
                node->data.instanceof_expr.type_name = strdup(parser->current_token->lexeme);
                _rava_parser_advance(parser);
            }
            left = node;
            continue;
        }

        RavaBinaryOp_e op;
        if (_rava_parser_match(parser, RAVA_TOKEN_LT)) op = RAVA_BINOP_LT;
        else if (_rava_parser_match(parser, RAVA_TOKEN_GT)) op = RAVA_BINOP_GT;
        else if (_rava_parser_match(parser, RAVA_TOKEN_LE)) op = RAVA_BINOP_LE;
        else { _rava_parser_advance(parser); op = RAVA_BINOP_GE; }

        RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_BINARY_EXPR,
                                                   parser->current_token->line,
                                                   parser->current_token->column);
        node->data.binary.op = op;
        node->data.binary.left = left;
        node->data.binary.right = _rava_parser_parse_additive(parser);
        left = node;
    }

    return left;
}

static RavaASTNode_t* _rava_parser_parse_equality(RavaParser_t *parser) {
    RavaASTNode_t *left = _rava_parser_parse_relational(parser);

    while (_rava_parser_check(parser, RAVA_TOKEN_EQUAL) ||
           _rava_parser_check(parser, RAVA_TOKEN_NE)) {

        RavaBinaryOp_e op = _rava_parser_match(parser, RAVA_TOKEN_EQUAL) ?
                           RAVA_BINOP_EQ : RAVA_BINOP_NE;
        if (op == RAVA_BINOP_NE) _rava_parser_advance(parser);

        RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_BINARY_EXPR,
                                                   parser->current_token->line,
                                                   parser->current_token->column);
        node->data.binary.op = op;
        node->data.binary.left = left;
        node->data.binary.right = _rava_parser_parse_relational(parser);
        left = node;
    }

    return left;
}

static RavaASTNode_t* _rava_parser_parse_bitwise_and(RavaParser_t *parser) {
    RavaASTNode_t *left = _rava_parser_parse_equality(parser);

    while (_rava_parser_match(parser, RAVA_TOKEN_AMP)) {
        RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_BINARY_EXPR,
                                                   parser->current_token->line,
                                                   parser->current_token->column);
        node->data.binary.op = RAVA_BINOP_BITAND;
        node->data.binary.left = left;
        node->data.binary.right = _rava_parser_parse_equality(parser);
        left = node;
    }

    return left;
}

static RavaASTNode_t* _rava_parser_parse_bitwise_xor(RavaParser_t *parser) {
    RavaASTNode_t *left = _rava_parser_parse_bitwise_and(parser);

    while (_rava_parser_match(parser, RAVA_TOKEN_CARET)) {
        RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_BINARY_EXPR,
                                                   parser->current_token->line,
                                                   parser->current_token->column);
        node->data.binary.op = RAVA_BINOP_BITXOR;
        node->data.binary.left = left;
        node->data.binary.right = _rava_parser_parse_bitwise_and(parser);
        left = node;
    }

    return left;
}

static RavaASTNode_t* _rava_parser_parse_bitwise_or(RavaParser_t *parser) {
    RavaASTNode_t *left = _rava_parser_parse_bitwise_xor(parser);

    while (_rava_parser_match(parser, RAVA_TOKEN_PIPE)) {
        RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_BINARY_EXPR,
                                                   parser->current_token->line,
                                                   parser->current_token->column);
        node->data.binary.op = RAVA_BINOP_BITOR;
        node->data.binary.left = left;
        node->data.binary.right = _rava_parser_parse_bitwise_xor(parser);
        left = node;
    }

    return left;
}

static RavaASTNode_t* _rava_parser_parse_logical_and(RavaParser_t *parser) {
    RavaASTNode_t *left = _rava_parser_parse_bitwise_or(parser);

    while (_rava_parser_match(parser, RAVA_TOKEN_AND)) {
        RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_BINARY_EXPR,
                                                   parser->current_token->line,
                                                   parser->current_token->column);
        node->data.binary.op = RAVA_BINOP_AND;
        node->data.binary.left = left;
        node->data.binary.right = _rava_parser_parse_bitwise_or(parser);
        left = node;
    }

    return left;
}

static RavaASTNode_t* _rava_parser_parse_logical_or(RavaParser_t *parser) {
    RavaASTNode_t *left = _rava_parser_parse_logical_and(parser);

    while (_rava_parser_match(parser, RAVA_TOKEN_OR)) {
        RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_BINARY_EXPR,
                                                   parser->current_token->line,
                                                   parser->current_token->column);
        node->data.binary.op = RAVA_BINOP_OR;
        node->data.binary.left = left;
        node->data.binary.right = _rava_parser_parse_logical_and(parser);
        left = node;
    }

    return left;
}

static RavaASTNode_t* _rava_parser_parse_ternary(RavaParser_t *parser) {
    RavaASTNode_t *condition = _rava_parser_parse_logical_or(parser);

    if (_rava_parser_match(parser, RAVA_TOKEN_QUESTION)) {
        RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_TERNARY_EXPR,
                                                   parser->current_token->line,
                                                   parser->current_token->column);
        node->data.ternary.condition = condition;
        node->data.ternary.true_expr = _rava_parser_parse_expression(parser);
        _rava_parser_expect(parser, RAVA_TOKEN_COLON, "Expected ':' in ternary expression");
        node->data.ternary.false_expr = _rava_parser_parse_ternary(parser);
        return node;
    }

    return condition;
}

static RavaASTNode_t* _rava_parser_parse_assignment(RavaParser_t *parser) {
    RavaASTNode_t *left = _rava_parser_parse_ternary(parser);

    if (_rava_parser_match(parser, RAVA_TOKEN_ASSIGN)) {
        RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_ASSIGN_EXPR,
                                                   parser->current_token->line,
                                                   parser->current_token->column);
        node->data.assign.target = left;
        node->data.assign.value = _rava_parser_parse_assignment(parser);
        return node;
    }

    RavaBinaryOp_e compound_op = -1;
    if (_rava_parser_match(parser, RAVA_TOKEN_PLUSASSIGN)) {
        compound_op = RAVA_BINOP_ADD;
    } else if (_rava_parser_match(parser, RAVA_TOKEN_MINUSASSIGN)) {
        compound_op = RAVA_BINOP_SUB;
    } else if (_rava_parser_match(parser, RAVA_TOKEN_STARASSIGN)) {
        compound_op = RAVA_BINOP_MUL;
    } else if (_rava_parser_match(parser, RAVA_TOKEN_SLASHASSIGN)) {
        compound_op = RAVA_BINOP_DIV;
    } else if (_rava_parser_match(parser, RAVA_TOKEN_PERCENTASSIGN)) {
        compound_op = RAVA_BINOP_MOD;
    }

    if (compound_op != (RavaBinaryOp_e)-1) {
        RavaASTNode_t *binary = rava_ast_node_create(RAVA_AST_BINARY_EXPR,
                                                      parser->current_token->line,
                                                      parser->current_token->column);
        binary->data.binary.op = compound_op;
        binary->data.binary.left = left;
        binary->data.binary.right = _rava_parser_parse_assignment(parser);

        RavaASTNode_t *assign = rava_ast_node_create(RAVA_AST_ASSIGN_EXPR,
                                                      parser->current_token->line,
                                                      parser->current_token->column);
        assign->data.assign.target = left;
        assign->data.assign.value = binary;
        return assign;
    }

    return left;
}

RavaASTNode_t* _rava_parser_parse_array_initializer(RavaParser_t *parser) {
    RavaASTNode_t *node = rava_ast_node_create(RAVA_AST_ARRAY_INIT_EXPR,
                                               parser->current_token->line,
                                               parser->current_token->column);

    _rava_parser_expect(parser, RAVA_TOKEN_LBRACE, "Expected '{' for array initializer");

    size_t capacity = 8;
    node->data.array_init.elements = malloc(sizeof(RavaASTNode_t*) * capacity);
    node->data.array_init.elements_count = 0;

    if (!_rava_parser_check(parser, RAVA_TOKEN_RBRACE)) {
        do {
            if (node->data.array_init.elements_count >= capacity) {
                capacity *= 2;
                node->data.array_init.elements = realloc(node->data.array_init.elements,
                                                         sizeof(RavaASTNode_t*) * capacity);
            }
            node->data.array_init.elements[node->data.array_init.elements_count++] =
                _rava_parser_parse_expression(parser);
        } while (_rava_parser_match(parser, RAVA_TOKEN_COMMA));
    }

    _rava_parser_expect(parser, RAVA_TOKEN_RBRACE, "Expected '}' after array initializer");

    return node;
}

RavaASTNode_t* _rava_parser_parse_expression(RavaParser_t *parser) {
    return _rava_parser_parse_assignment(parser);
}