mirror of
https://github.com/zekexiao/pocketlang.git
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5aee9616c1
now it's easier to re-use cli modules into another hosting application and a little python script have added to generate native api to support native extension library.
103 lines
3.5 KiB
C
103 lines
3.5 KiB
C
/*
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* Copyright (c) 2020-2022 Thakee Nathees
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* Copyright (c) 2021-2022 Pocketlang Contributors
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* Distributed Under The MIT License
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*/
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#ifndef MODULES_H
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#define MODULES_H
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#include <pocketlang.h>
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#include "common.h"
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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/*****************************************************************************/
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/* MODULE OBJECTS */
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/*****************************************************************************/
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// Str | If already exists | If does not exist |
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// -----+-------------------+-------------------|
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// 'r' | read from start | failure to open |
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// 'w' | destroy contents | create new |
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// 'a' | write to end | create new |
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// 'r+' | read from start | error |
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// 'w+' | destroy contents | create new |
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// 'a+' | write to end | create new |
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typedef enum {
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FMODE_READ = (1 << 0),
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FMODE_WRITE = (1 << 1),
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FMODE_APPEND = (1 << 2),
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_FMODE_EXT = (1 << 3),
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FMODE_READ_EXT = (_FMODE_EXT | FMODE_READ),
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FMODE_WRITE_EXT = (_FMODE_EXT | FMODE_WRITE),
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FMODE_APPEND_EXT = (_FMODE_EXT | FMODE_APPEND),
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} FileAccessMode;
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typedef enum {
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OBJ_FILE = 1,
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_OBJ_MAX_
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} ObjType;
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typedef struct {
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ObjType type;
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} Obj;
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typedef struct {
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Obj _super;
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FILE* fp; // C file poinnter.
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FileAccessMode mode; // Access mode of the file.
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bool closed; // True if the file isn't closed yet.
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} File;
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/*****************************************************************************/
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/* MODULE PUBLIC FUNCTIONS */
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/*****************************************************************************/
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// Initialize the native module object with it's default values.
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void initObj(Obj* obj, ObjType type);
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// A function callback called by pocket VM to get attribute of a native
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// instance. The value of the attributes will be returned with pkReturn...()
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// functions and if the attribute doesn't exists on the instance we're
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// shouldn't return anything, PKVM will know it and set error (or use some
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// common attributes like "as_string", "as_repr", etc).
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void objGetAttrib(PKVM* vm, void* instance, uint32_t id, PkStringPtr attrib);
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// A function callback called by pocket VM to set attribute of a native
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// instance.
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bool objSetAttrib(PKVM* vm, void* instance, uint32_t id, PkStringPtr attrib);
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// The free callback of the object, that'll called by pocketlang when a
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// pocketlang native instance garbage collected.
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void freeObj(PKVM* vm, void* instance, uint32_t id);
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// The native instance get_name callback used to get the name of a native
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// instance from pocketlang. Here the id we're using is the ObjType enum.
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const char* getObjName(uint32_t id);
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// Registers all the cli modules.
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void registerModules(PKVM* vm);
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/*****************************************************************************/
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/* SHARED FUNCTIONS */
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/*****************************************************************************/
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// These are "public" module functions that can be shared. Since some modules
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// can be used for cli's internals we're defining such functions here and they
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// will be imported in the cli.
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bool pathIsAbsolute(const char* path);
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void pathGetDirName(const char* path, size_t* length);
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size_t pathNormalize(const char* path, char* buff, size_t buff_size);
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size_t pathJoin(const char* from, const char* path, char* buffer,
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size_t buff_size);
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#endif // MODULES_H
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