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#ifndef DUCC_AST_H
#define DUCC_AST_H
#include "std.h"
enum StorageClass {
StorageClass_unspecified,
StorageClass_auto,
StorageClass_constexpr,
StorageClass_extern,
StorageClass_register,
StorageClass_static,
StorageClass_thread_local,
StorageClass_typedef,
};
typedef enum StorageClass StorageClass;
enum TypeKind {
TypeKind_unknown,
TypeKind_void,
TypeKind_char,
TypeKind_schar,
TypeKind_uchar,
TypeKind_short,
TypeKind_ushort,
TypeKind_int,
TypeKind_uint,
TypeKind_long,
TypeKind_ulong,
TypeKind_llong,
TypeKind_ullong,
TypeKind_struct,
TypeKind_union,
TypeKind_enum,
TypeKind_ptr,
TypeKind_array,
};
typedef enum TypeKind TypeKind;
const char* type_kind_stringify(TypeKind k);
struct AstNode;
typedef struct AstNode AstNode;
struct TypeRef {
struct AstNode* defs;
size_t index;
};
typedef struct TypeRef TypeRef;
struct Type {
TypeKind kind;
StorageClass storage_class;
// Check `base` instead of `kind` to test if the type is an array or a pointer.
struct Type* base;
int array_size;
TypeRef ref;
};
typedef struct Type Type;
Type* type_new(TypeKind kind);
Type* type_new_ptr(Type* base);
Type* type_new_array(Type* elem, int size);
Type* type_new_static_string(int len);
Type* type_array_to_ptr(Type* ty);
BOOL type_is_unsized(Type* ty);
int type_sizeof_struct(Type* ty);
int type_sizeof_union(Type* ty);
int type_alignof_struct(Type* ty);
int type_alignof_union(Type* ty);
int type_offsetof(Type* ty, const char* name);
Type* type_member_typeof(Type* ty, const char* name);
int type_sizeof(Type* ty);
int type_alignof(Type* ty);
int to_aligned(int n, int a);
enum AstNodeKind {
AstNodeKind_unknown,
AstNodeKind_nop,
AstNodeKind_assign_expr,
AstNodeKind_binary_expr,
AstNodeKind_break_stmt,
AstNodeKind_cond_expr,
AstNodeKind_continue_stmt,
AstNodeKind_deref_expr,
AstNodeKind_do_while_stmt,
AstNodeKind_enum_def,
AstNodeKind_enum_member,
AstNodeKind_expr_stmt,
AstNodeKind_for_stmt,
AstNodeKind_func_call,
AstNodeKind_func_decl,
AstNodeKind_func_def,
AstNodeKind_gvar,
AstNodeKind_gvar_decl,
AstNodeKind_if_stmt,
AstNodeKind_int_expr,
AstNodeKind_list,
AstNodeKind_logical_expr,
AstNodeKind_lvar,
AstNodeKind_lvar_decl,
AstNodeKind_param,
AstNodeKind_ref_expr,
AstNodeKind_return_stmt,
AstNodeKind_str_expr,
AstNodeKind_struct_decl,
AstNodeKind_struct_def,
AstNodeKind_struct_member,
AstNodeKind_type,
AstNodeKind_typedef_decl,
AstNodeKind_unary_expr,
AstNodeKind_union_decl,
AstNodeKind_union_def,
AstNodeKind_union_member,
// Intermediate ASTs: they are used only in parsing, not for parse result.
AstNodeKind_declarator,
};
typedef enum AstNodeKind AstNodeKind;
#define node_items __n1
#define node_len __i1
#define node_cap __i2
#define node_expr __n1
#define node_lhs __n1
#define node_rhs __n2
#define node_operand __n1
#define node_cond __n1
#define node_init __n2
#define node_update __n3
#define node_then __n2
#define node_else __n3
#define node_body __n4
#define node_members __n1
#define node_params __n1
#define node_args __n1
#define node_int_value __i1
#define node_idx __i1
#define node_op __i1
#define node_stack_offset __i1
#define node_stack_size __i1
#define node_function_is_static __i2
struct AstNode {
AstNodeKind kind;
const char* name;
Type* ty;
struct AstNode* __n1;
struct AstNode* __n2;
struct AstNode* __n3;
struct AstNode* __n4;
int __i1;
int __i2;
};
struct Program {
AstNode* funcs;
AstNode* vars;
const char** str_literals;
};
typedef struct Program Program;
AstNode* ast_new(AstNodeKind kind);
AstNode* ast_new_list(int capacity);
void ast_append(AstNode* list, AstNode* item);
AstNode* ast_new_int(int v);
AstNode* ast_new_unary_expr(int op, AstNode* operand);
AstNode* ast_new_binary_expr(int op, AstNode* lhs, AstNode* rhs);
AstNode* ast_new_assign_expr(int op, AstNode* lhs, AstNode* rhs);
AstNode* ast_new_assign_add_expr(AstNode* lhs, AstNode* rhs);
AstNode* ast_new_assign_sub_expr(AstNode* lhs, AstNode* rhs);
AstNode* ast_new_ref_expr(AstNode* operand);
AstNode* ast_new_deref_expr(AstNode* operand);
AstNode* ast_new_member_access_expr(AstNode* obj, const char* name);
#endif
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