1/* Copyright (c) 2013-2016 Jeffrey Pfau
  2 *
  3 * This Source Code Form is subject to the terms of the Mozilla Public
  4 * License, v. 2.0. If a copy of the MPL was not distributed with this
  5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
  6#include "engine.h"
  7
  8#include <mgba/core/scripting.h>
  9#include <mgba-util/string.h>
 10#include <mgba-util/vfs.h>
 11
 12#ifdef USE_DEBUGGERS
 13#include <mgba/debugger/debugger.h>
 14#endif
 15
 16#include "lib.h"
 17
 18static const char* mPythonScriptEngineName(struct mScriptEngine*);
 19static bool mPythonScriptEngineInit(struct mScriptEngine*, struct mScriptBridge*);
 20static void mPythonScriptEngineDeinit(struct mScriptEngine*);
 21static bool mPythonScriptEngineIsScript(struct mScriptEngine*, const char* name, struct VFile* vf);
 22static bool mPythonScriptEngineLoadScript(struct mScriptEngine*, const char* name, struct VFile* vf);
 23static void mPythonScriptEngineRun(struct mScriptEngine*);
 24static bool mPythonScriptEngineLookupSymbol(struct mScriptEngine*, const char* name, int32_t* out);
 25
 26#ifdef USE_DEBUGGERS
 27static void mPythonScriptDebuggerEntered(struct mScriptEngine*, enum mDebuggerEntryReason, struct mDebuggerEntryInfo*);
 28#endif
 29
 30struct mPythonScriptEngine {
 31	struct mScriptEngine d;
 32	struct mScriptBridge* sb;
 33};
 34
 35struct mPythonScriptEngine* mPythonCreateScriptEngine(void) {
 36	struct mPythonScriptEngine* engine = malloc(sizeof(*engine));
 37	engine->d.name = mPythonScriptEngineName;
 38	engine->d.init = mPythonScriptEngineInit;
 39	engine->d.deinit = mPythonScriptEngineDeinit;
 40	engine->d.isScript = mPythonScriptEngineIsScript;
 41	engine->d.loadScript = mPythonScriptEngineLoadScript;
 42	engine->d.run = mPythonScriptEngineRun;
 43	engine->d.lookupSymbol = mPythonScriptEngineLookupSymbol;
 44#ifdef USE_DEBUGGERS
 45	engine->d.debuggerEntered = mPythonScriptDebuggerEntered;
 46#endif
 47	engine->sb = NULL;
 48	return engine;
 49}
 50
 51void mPythonSetup(struct mScriptBridge* sb) {
 52	struct mPythonScriptEngine* se = mPythonCreateScriptEngine();
 53	mScriptBridgeInstallEngine(sb, &se->d);
 54}
 55
 56const char* mPythonScriptEngineName(struct mScriptEngine* se) {
 57	UNUSED(se);
 58	return "python";
 59}
 60
 61bool mPythonScriptEngineInit(struct mScriptEngine* se, struct mScriptBridge* sb) {
 62	struct mPythonScriptEngine* engine = (struct mPythonScriptEngine*) se;
 63	engine->sb = sb;
 64	return true;
 65}
 66
 67void mPythonScriptEngineDeinit(struct mScriptEngine* se) {
 68	struct mPythonScriptEngine* engine = (struct mPythonScriptEngine*) se;
 69	free(se);
 70}
 71
 72bool mPythonScriptEngineIsScript(struct mScriptEngine* se, const char* name, struct VFile* vf) {
 73	UNUSED(se);
 74	UNUSED(vf);
 75	return endswith(name, ".py");
 76}
 77
 78bool mPythonScriptEngineLoadScript(struct mScriptEngine* se, const char* name, struct VFile* vf) {
 79	struct mPythonScriptEngine* engine = (struct mPythonScriptEngine*) se;
 80	return mPythonLoadScript(name, vf);
 81}
 82
 83void mPythonScriptEngineRun(struct mScriptEngine* se) {
 84	struct mPythonScriptEngine* engine = (struct mPythonScriptEngine*) se;
 85
 86	struct mDebugger* debugger = mScriptBridgeGetDebugger(engine->sb);
 87	if (debugger) {
 88		mPythonSetDebugger(debugger);
 89	}
 90
 91	mPythonRunPending();
 92}
 93
 94bool mPythonScriptEngineLookupSymbol(struct mScriptEngine* se, const char* name, int32_t* out) {
 95	struct mPythonScriptEngine* engine = (struct mPythonScriptEngine*) se;
 96	return mPythonLookupSymbol(name, out);
 97}
 98
 99#ifdef USE_DEBUGGERS
100void mPythonScriptDebuggerEntered(struct mScriptEngine* se, enum mDebuggerEntryReason reason, struct mDebuggerEntryInfo* info) {
101	struct mPythonScriptEngine* engine = (struct mPythonScriptEngine*) se;
102
103	struct mDebugger* debugger = mScriptBridgeGetDebugger(engine->sb);
104	if (!debugger) {
105		return;
106	}
107
108	mPythonSetDebugger(debugger);
109	mPythonDebuggerEntered(reason, info);
110}
111#endif