#ifndef __SCC_AST_H__
#define __SCC_AST_H__

#include "ast_builtin.h"
#include "ast_def.h"
#include "ast_dump.h"

// decls can be null but maybe warning
static inline void
scc_ast_translation_unit_init(scc_ast_translation_unit_t *translation_unit,
                              scc_ast_decl_vec_t *decls) {
    Assert(translation_unit != null);
    translation_unit->base.type = SCC_AST_TRANSLATION_UNIT;
    translation_unit->base.loc = scc_pos_create();
    if (decls == null) {
        scc_vec_init(translation_unit->declarations);
    } else {
        translation_unit->declarations = *decls;
        scc_vec_init(*decls);
    }
}

// var_init can be null
static inline void scc_ast_decl_val_init(scc_ast_decl_t *decl,
                                         scc_ast_type_t *type, const char *name,
                                         scc_ast_expr_t *var_init) {
    Assert(decl != null && name != null && type != null);
    decl->base.loc = scc_pos_create();
    decl->base.type = SCC_AST_DECL_VAR;
    decl->name = name;
    decl->var.type = type;
    decl->var.init = var_init;
}

// body can be null
static inline void scc_ast_decl_func_init(scc_ast_decl_t *decl,
                                          scc_ast_type_t *type,
                                          const char *name,
                                          scc_ast_stmt_t *body) {
    Assert(decl != null && name != null && type != null);
    decl->base.loc = scc_pos_create();
    decl->base.type = SCC_AST_DECL_FUNC;
    decl->name = name;
    decl->func.type = type;
    Assert(type->base.type == SCC_AST_TYPE_FUNCTION);
    decl->func.body = body;
}

// body can be null
static inline void scc_ast_decl_param_init(scc_ast_decl_t *decl,
                                           scc_ast_type_t *type,
                                           const char *name,
                                           scc_ast_stmt_t *body) {
    Assert(decl != null && name != null && type != null);
    decl->base.loc = scc_pos_create();
    decl->base.type = SCC_AST_DECL_PARAM;
    decl->name = name;
    decl->param.type = type;
}

// fields can be null
static inline void scc_ast_decl_struct_init(scc_ast_decl_t *decl,
                                            const char *name,
                                            scc_ast_decl_vec_t *fields_move) {
    Assert(decl != null && name != null);
    decl->base.loc = scc_pos_create();
    decl->base.type = SCC_AST_DECL_STRUCT;
    decl->name = name;
    if (fields_move == null) {
        scc_vec_init(decl->record.fields);
    } else {
        decl->record.fields = *fields_move;
        scc_vec_init(*fields_move);
    }
}

// fields can be null
static inline void scc_ast_decl_union_init(scc_ast_decl_t *decl,
                                           const char *name,
                                           scc_ast_decl_vec_t *fields_move) {
    Assert(decl != null && name != null);
    decl->base.loc = scc_pos_create();
    decl->base.type = SCC_AST_DECL_UNION;
    decl->name = name;
    if (fields_move == null) {
        scc_vec_init(decl->record.fields);
    } else {
        decl->record.fields = *fields_move;
        scc_vec_init(*fields_move);
    }
}

// fields can be null
static inline void scc_ast_decl_enum_init(scc_ast_decl_t *decl,
                                          const char *name,
                                          scc_ast_expr_vec_t *fields_move) {
    Assert(decl != null && name != null);
    decl->base.loc = scc_pos_create();
    decl->base.type = SCC_AST_DECL_ENUM;
    decl->name = name;
    if (fields_move == null) {
        scc_vec_init(decl->enumeration.enumerators);
    } else {
        decl->enumeration.enumerators = *fields_move;
        scc_vec_init(*fields_move);
    }
}

static inline void scc_ast_decl_typedef_init(scc_ast_decl_t *decl,
                                             const char *name,
                                             scc_ast_type_t *type) {
    Assert(decl != null && name != null && type != null);
    decl->base.loc = scc_pos_create();
    decl->base.type = SCC_AST_DECL_TYPEDEF;
    decl->name = name;
    decl->typedef_decl.type = type;
}

// items can be null
static inline void
scc_ast_stmt_compound_init(scc_ast_stmt_t *stmt,
                           scc_ast_block_item_vec_t *items_move) {
    Assert(stmt != null);
    stmt->base.loc = scc_pos_create();
    stmt->base.type = SCC_AST_STMT_COMPOUND;
    if (items_move == null) {
        scc_vec_init(stmt->compound.block_items);
    } else {
        stmt->compound.block_items = *items_move;
        scc_vec_init(*items_move);
    }
}

// expr can be null
static inline void scc_ast_stmt_expr_init(scc_ast_stmt_t *stmt,
                                          scc_ast_expr_t *expr) {
    Assert(stmt != null);
    stmt->base.loc = scc_pos_create();
    stmt->base.type = SCC_AST_STMT_EXPR;
    stmt->expr.expr = expr;
}

// opt_else can be null
static inline void scc_ast_stmt_if_init(scc_ast_stmt_t *stmt,
                                        scc_ast_expr_t *cond,
                                        scc_ast_stmt_t *then,
                                        scc_ast_stmt_t *opt_else) {
    Assert(stmt != null && cond != null && then != null);
    stmt->base.loc = scc_pos_create();
    stmt->base.type = SCC_AST_STMT_IF;
    stmt->if_stmt.cond = cond;
    stmt->if_stmt.then_stmt = then;
    stmt->if_stmt.opt_else_stmt = opt_else;
}

static inline void scc_ast_stmt_while_init(scc_ast_stmt_t *stmt,
                                           scc_ast_expr_t *cond,
                                           scc_ast_stmt_t *body) {
    Assert(stmt != null && cond != null && body != null);
    stmt->base.loc = scc_pos_create();
    stmt->base.type = SCC_AST_STMT_WHILE;
    stmt->while_stmt.cond = cond;
    stmt->while_stmt.body = body;
}

static inline void scc_ast_stmt_do_while_init(scc_ast_stmt_t *stmt,
                                              scc_ast_expr_t *cond,
                                              scc_ast_stmt_t *body) {
    Assert(stmt != null && cond != null && body != null);
    stmt->base.loc = scc_pos_create();
    stmt->base.type = SCC_AST_STMT_DO_WHILE;
    stmt->while_stmt.cond = cond;
    stmt->while_stmt.body = body;
}

// FIXME
static inline void scc_ast_stmt_for_init(scc_ast_stmt_t *stmt,
                                         scc_ast_type_t *init,
                                         scc_ast_expr_t *cond,
                                         scc_ast_expr_t *incr,
                                         scc_ast_stmt_t *body) {
    Assert(stmt != null && body != null);
    stmt->base.loc = scc_pos_create();
    stmt->base.type = SCC_AST_STMT_FOR;
    stmt->for_stmt.init = init;
    stmt->for_stmt.cond = cond;
    stmt->for_stmt.incr = incr;
    stmt->for_stmt.body = body;
}

static inline void scc_ast_stmt_switch_init(scc_ast_stmt_t *stmt,
                                            scc_ast_expr_t *cond,
                                            scc_ast_stmt_t *body) {
    Assert(stmt != null && cond != null && body != null);
    stmt->base.loc = scc_pos_create();
    stmt->base.type = SCC_AST_STMT_SWITCH;
    stmt->switch_stmt.cond = cond;
    stmt->switch_stmt.body = body;
}

static inline void scc_ast_stmt_case_init(scc_ast_stmt_t *stmt,
                                          scc_ast_expr_t *cond,
                                          scc_ast_stmt_t *body) {
    Assert(stmt != null && cond != null && body != null);
    stmt->base.loc = scc_pos_create();
    stmt->base.type = SCC_AST_STMT_CASE;
    stmt->case_stmt.expr = cond;
    stmt->case_stmt.stmt = body;
}

static inline void scc_ast_stmt_default_init(scc_ast_stmt_t *stmt,
                                             scc_ast_stmt_t *body) {
    Assert(stmt != null && body != null);
    stmt->base.loc = scc_pos_create();
    stmt->base.type = SCC_AST_STMT_DEFAULT;
    stmt->case_stmt.stmt = body;
}

static inline void scc_ast_stmt_break_init(scc_ast_stmt_t *stmt) {
    Assert(stmt != null);
    stmt->base.loc = scc_pos_create();
    stmt->base.type = SCC_AST_STMT_BREAK;
}

static inline void scc_ast_stmt_continue_init(scc_ast_stmt_t *stmt) {
    Assert(stmt != null);
    stmt->base.loc = scc_pos_create();
    stmt->base.type = SCC_AST_STMT_CONTINUE;
}

// expr can be null
static inline void scc_ast_stmt_return_init(scc_ast_stmt_t *stmt,
                                            scc_ast_expr_t *expr) {
    Assert(stmt != null);
    stmt->base.loc = scc_pos_create();
    stmt->base.type = SCC_AST_STMT_RETURN;
    stmt->return_stmt.expr = expr;
}

static inline void scc_ast_stmt_goto_init(scc_ast_stmt_t *stmt,
                                          const char *label) {
    Assert(stmt != null && label != null);
    stmt->base.loc = scc_pos_create();
    stmt->base.type = SCC_AST_STMT_GOTO;
    stmt->goto_stmt.label = label;
    stmt->goto_stmt._target = null;
}

static inline void scc_ast_stmt_label_init(scc_ast_stmt_t *stmt,
                                           const char *label,
                                           scc_ast_stmt_t *body) {
    Assert(stmt != null);
    stmt->base.loc = scc_pos_create();
    stmt->base.type = SCC_AST_STMT_LABEL;
    stmt->label_stmt.label = label;
    stmt->label_stmt.stmt = body;
}

static inline void scc_ast_expr_binary_init(scc_ast_expr_t *expr,
                                            scc_ast_expr_op_t op,
                                            scc_ast_expr_t *lhs,
                                            scc_ast_expr_t *rhs) {
    Assert(expr != null && lhs != null && rhs != null);
    expr->base.loc = scc_pos_create();
    expr->base.type = SCC_AST_EXPR_BINARY;
    expr->binary.op = op;
    expr->binary.lhs = lhs;
    expr->binary.rhs = rhs;
}

static inline void scc_ast_expr_unary_init(scc_ast_expr_t *expr,
                                           scc_ast_expr_op_t op,
                                           scc_ast_expr_t *operand) {
    Assert(expr != null && operand != null);
    expr->base.loc = scc_pos_create();
    expr->base.type = SCC_AST_EXPR_UNARY;
    expr->unary.op = op;
    expr->unary.operand = operand;
}

static inline void scc_ast_expr_cond_init(scc_ast_expr_t *expr,
                                          scc_ast_expr_t *cond,
                                          scc_ast_expr_t *then_expr,
                                          scc_ast_expr_t *else_expr) {
    Assert(expr != null && cond != null && then_expr != null &&
           else_expr != null);
    expr->base.loc = scc_pos_create();
    expr->base.type = SCC_AST_EXPR_COND;
    expr->cond.cond = cond;
    expr->cond.then_expr = then_expr;
    expr->cond.else_expr = else_expr;
}

// args can be null
static inline void scc_ast_expr_call_init(scc_ast_expr_t *expr,
                                          const char *name,
                                          scc_ast_expr_vec_t *args) {
    Assert(expr != null && name != null);
    expr->base.loc = scc_pos_create();
    expr->base.type = SCC_AST_EXPR_CALL;
    expr->call.name = name;
    expr->call._target = null;
    if (args == null) {
        scc_vec_init(expr->call.args);
    } else {
        expr->call.args = *args;
    }
}

// SCC_AST_EXPR_ARRAY_SUBSCRIPT,  // 数组下标
static inline void scc_ast_expr_array_subscript_init(scc_ast_expr_t *expr,
                                                     scc_ast_expr_t *array,
                                                     scc_ast_expr_t *index) {
    Assert(expr != null && array != null && index != null);
    expr->base.loc = scc_pos_create();
    expr->base.type = SCC_AST_EXPR_ARRAY_SUBSCRIPT;
    expr->subscript.array = array;
    expr->subscript.index = index;
}

static inline void _scc_ast_expr_member_init(scc_ast_expr_t *expr,
                                             scc_ast_node_type_t type,
                                             scc_ast_expr_t *object,
                                             const char *member) {
    Assert(expr != null && object != null && member != null);
    expr->base.loc = scc_pos_create();
    expr->base.type = type;
    expr->member.base = object;
    expr->member.name = member;
    expr->member._target_idx = 0;
}

static inline void scc_ast_expr_member_init(scc_ast_expr_t *expr,
                                            scc_ast_expr_t *object,
                                            const char *member) {
    _scc_ast_expr_member_init(expr, SCC_AST_EXPR_MEMBER, object, member);
}

static inline void scc_ast_expr_ptr_member_init(scc_ast_expr_t *expr,
                                                scc_ast_expr_t *object,
                                                const char *member) {
    _scc_ast_expr_member_init(expr, SCC_AST_EXPR_PTR_MEMBER, object, member);
}

// SCC_AST_EXPR_CAST,             // 类型转换
// SCC_AST_EXPR_SIZE_OF,          // sizeof
// SCC_AST_EXPR_ALIGN_OF,         // _Alignof
// SCC_AST_EXPR_COMPOUND_LITERAL, // 复合字面量

static inline void scc_ast_expr_literal_init(scc_ast_expr_t *expr,
                                             scc_ast_node_type_t type,
                                             const char *value, cbool owned) {
    Assert(expr != null && value != null);
    expr->base.loc = scc_pos_create();
    expr->base.type = type;
    expr->literal.lexme = value;
    expr->literal.owned = owned;
}

static inline void scc_ast_expr_literal_int_init(scc_ast_expr_t *expr,
                                                 const char *value,
                                                 cbool owned) {
    scc_ast_expr_literal_init(expr, SCC_AST_EXPR_INT_LITERAL, value, owned);
}

static inline void scc_ast_expr_literal_float_init(scc_ast_expr_t *expr,
                                                   const char *value,
                                                   cbool owned) {
    scc_ast_expr_literal_init(expr, SCC_AST_EXPR_FLOAT_LITERAL, value, owned);
}
static inline void scc_ast_expr_literal_char_init(scc_ast_expr_t *expr,
                                                  const char *value,
                                                  cbool owned) {
    scc_ast_expr_literal_init(expr, SCC_AST_EXPR_CHAR_LITERAL, value, owned);
}
static inline void scc_ast_expr_literal_string_init(scc_ast_expr_t *expr,
                                                    const char *value,
                                                    cbool owned) {
    scc_ast_expr_literal_init(expr, SCC_AST_EXPR_STRING_LITERAL, value, owned);
}

static inline void scc_ast_expr_identifier_init(scc_ast_expr_t *expr,
                                                const char *name) {
    Assert(expr != null && name != null);
    expr->base.loc = scc_pos_create();
    expr->base.type = SCC_AST_EXPR_IDENTIFIER;
    expr->identifier.name = name;
    expr->identifier._target = null;
}

// SCC_AST_TYPE_BUILTIN,  // 内置类型
// SCC_AST_TYPE_POINTER,  // 指针类型
// SCC_AST_TYPE_ARRAY,    // 数组类型

// return_type and params can be null
static inline void scc_ast_type_function_init(scc_ast_type_t *type,
                                              scc_ast_type_t *return_type,
                                              scc_ast_decl_vec_t *params) {
    Assert(type != null);
    type->base.loc = scc_pos_create();
    type->base.type = SCC_AST_TYPE_FUNCTION;
    type->function.return_type = return_type;
    if (params == null) {
        scc_vec_init(type->function.param_types);
    } else {
        type->function.param_types = *params;
        scc_vec_init(*params);
    }
}

// SCC_AST_TYPE_STRUCT,   // 结构体类型
// SCC_AST_TYPE_UNION,    // 联合类型
// SCC_AST_TYPE_ENUM,     // 枚举类型
// SCC_AST_TYPE_TYPEDEF,  // typedef 类型

#endif /* __SCC_AST_H__ */