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#ifndef AMALGAM_COMPILER_H
#define AMALGAM_COMPILER_H

#include "std/misc.h"
#include "std/buffer.h"
#include "std/buffer_view.h"
#include "std/arena_allocator.h"
#include "std/thread.h"
#include "compiler_options.h"
#include "ast.h"
#include "program.h"

#define AMAL_COMPILER_OK 0
/* General error */
#define AMAL_COMPILER_ERR -1
#define AMAL_COMPILER_WORK_FAIL_ABORT -2

#define NUM_ARITHMETIC_TYPES 10

typedef struct {
    LhsExpr lhs_expr;
    bool is_signed;
} amal_default_type;

typedef struct {
    amal_default_type *i8;
    amal_default_type *i16;
    amal_default_type *i32;
    amal_default_type *i64;
    amal_default_type *u8;
    amal_default_type *u16;
    amal_default_type *u32;
    amal_default_type *u64;
    amal_default_type *isize;
    amal_default_type *usize;
    amal_default_type *f32;
    amal_default_type *f64;
    amal_default_type *str;

    amal_default_type *arithmetic_types[NUM_ARITHMETIC_TYPES];
} amal_default_types;

bool is_arithmetic_type(LhsExpr *expr, amal_compiler *compiler);

struct amal_compiler {
    amal_default_types default_types;
    amal_compiler_options options;
    amal_program *program;
    ArenaAllocator allocator;
    Scope root_scope;
    Buffer/*<Parser*>*/ parsers;
    Buffer/*<FileScopeReference*>*/ queued_files;
    HashMapType(BufferView, FileScopeReference*) file_scopes;
    ParserThreadData *threads;
    int usable_thread_count;
    bool started;
    bool work_failed;
    amal_mutex mutex;
    int generic_work_object_index;
};

void amal_compiler_options_init(amal_compiler_options *self);

/*
    If @options is NULL, then default values are used.
    You should run @amal_program_deinit even @amal_compiler_load_file fails, to cleanup memory.
    This function creates a copy of @filepath so it doesn't have to survive longer than this function call.
    The file has to be in utf-8 format and it can optionally have utf-8 BOM.
*/
CHECK_RESULT int amal_compiler_load_file(amal_compiler_options *options, amal_program *program, const char *filepath);
CHECK_RESULT int amal_compiler_internal_load_file(amal_compiler *self, const char *filepath, FileScopeReference **file_scope);

#endif