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jsinteractive.c
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jsinteractive.c
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/*
* This file is part of Espruino, a JavaScript interpreter for Microcontrollers
*
* Copyright (C) 2013 Gordon Williams <gw@pur3.co.uk>
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* ----------------------------------------------------------------------------
* Interactive Shell implementation
* ----------------------------------------------------------------------------
*/
#include "jsutils.h"
#include "jsinteractive.h"
#include "jshardware.h"
#include "jstimer.h"
#include "jspin.h"
#include "jsflags.h"
#include "jswrapper.h"
#include "jswrap_json.h"
#include "jswrap_io.h"
#include "jswrap_stream.h"
#include "jswrap_espruino.h" // jswrap_espruino_getErrorFlagArray
#include "jsflash.h" // load and save to flash
#include "jswrap_interactive.h" // jswrap_interactive_setTimeout
#include "jswrap_object.h" // jswrap_object_keys_or_property_names
#include "jsnative.h" // jsnSanityTest
#ifdef BLUETOOTH
#include "bluetooth.h"
#include "jswrap_bluetooth.h"
#endif
#ifdef ARM
#define CHAR_DELETE_SEND 0x08
#else
#define CHAR_DELETE_SEND '\b'
#endif
#ifdef ESP8266
extern void jshPrintBanner(void); // prints a debugging banner while we're in beta
extern void jshSoftInit(void); // re-inits wifi after a soft-reset
#endif
#ifdef ESP32
extern void jshSoftInit(void);
#endif
// ----------------------------------------------------------------------------
typedef enum {
IS_NONE,
IS_HAD_R,
IS_HAD_27,
IS_HAD_27_79,
IS_HAD_27_91,
IS_HAD_27_91_NUMBER, ///< Esc [ then 0-9
} PACKED_FLAGS InputState;
JsVar *events = 0; // Array of events to execute
JsVarRef timerArray = 0; // Linked List of timers to check and run
JsVarRef watchArray = 0; // Linked List of input watches to check and run
// ----------------------------------------------------------------------------
IOEventFlags consoleDevice = DEFAULT_CONSOLE_DEVICE; ///< The console device for user interaction
#ifndef SAVE_ON_FLASH
Pin pinBusyIndicator = DEFAULT_BUSY_PIN_INDICATOR;
Pin pinSleepIndicator = DEFAULT_SLEEP_PIN_INDICATOR;
#endif
JsiStatus jsiStatus = 0;
JsSysTime jsiLastIdleTime; ///< The last time we went around the idle loop - use this for timers
#ifndef EMBEDDED
uint32_t jsiTimeSinceCtrlC; ///< When was Ctrl-C last pressed. We use this so we quit on desktop when we do Ctrl-C + Ctrl-C
#endif
// ----------------------------------------------------------------------------
JsVar *inputLine = 0; ///< The current input line
JsvStringIterator inputLineIterator; ///< Iterator that points to the end of the input line
int inputLineLength = -1;
bool inputLineRemoved = false;
size_t inputCursorPos = 0; ///< The position of the cursor in the input line
InputState inputState = 0; ///< state for dealing with cursor keys
uint16_t inputStateNumber; ///< Number from when `Esc [ 1234` is sent - for storing line number
uint16_t jsiLineNumberOffset; ///< When we execute code, this is the 'offset' we apply to line numbers in error/debug
bool hasUsedHistory = false; ///< Used to speed up - if we were cycling through history and then edit, we need to copy the string
unsigned char loopsIdling = 0; ///< How many times around the loop have we been entirely idle?
JsErrorFlags lastJsErrorFlags = 0; ///< Compare with jsErrorFlags in order to report errors
// ----------------------------------------------------------------------------
#ifdef USE_DEBUGGER
void jsiDebuggerLine(JsVar *line);
#endif
void jsiCheckErrors();
// ----------------------------------------------------------------------------
/**
* Get the device from the class variable.
*/
IOEventFlags jsiGetDeviceFromClass(JsVar *class) {
// Devices have their Object data set up to something special
// See jspNewObject
if (class &&
class->varData.str[0]=='D' &&
class->varData.str[1]=='E' &&
class->varData.str[2]=='V')
return (IOEventFlags)class->varData.str[3];
return EV_NONE;
}
JsVar *jsiGetClassNameFromDevice(IOEventFlags device) {
const char *deviceName = jshGetDeviceString(device);
if (!deviceName[0]) return 0; // could be empty string
return jsvFindChildFromString(execInfo.root, deviceName, false);
}
NO_INLINE bool jsiEcho() {
return ((jsiStatus&JSIS_ECHO_OFF_MASK)==0);
}
NO_INLINE bool jsiPasswordProtected() {
return ((jsiStatus&JSIS_PASSWORD_PROTECTED)!=0);
}
static bool jsiShowInputLine() {
return jsiEcho() && !inputLineRemoved && !jsiPasswordProtected();
}
/** Called when the input line/cursor is modified *and its iterator should be reset
* Because JsvStringIterator doesn't lock the string, it's REALLY IMPORTANT
* that we call this BEFORE we do jsvUnLock(inputLine) */
static NO_INLINE void jsiInputLineCursorMoved() {
// free string iterator
if (inputLineIterator.var) {
jsvStringIteratorFree(&inputLineIterator);
inputLineIterator.var = 0;
}
inputLineLength = -1;
}
/// Called to append to the input line
static NO_INLINE void jsiAppendToInputLine(const char *str) {
// recreate string iterator if needed
if (!inputLineIterator.var) {
jsvStringIteratorNew(&inputLineIterator, inputLine, 0);
jsvStringIteratorGotoEnd(&inputLineIterator);
}
while (*str) {
jsvStringIteratorAppend(&inputLineIterator, *(str++));
inputLineLength++;
}
}
/// If Espruino could choose right now, what would be the best console device to use?
IOEventFlags jsiGetPreferredConsoleDevice() {
IOEventFlags dev = DEFAULT_CONSOLE_DEVICE;
#ifdef USE_TERMINAL
if (!jshIsDeviceInitialised(dev))
dev = EV_TERMINAL;
#endif
#ifdef USB
if (jshIsUSBSERIALConnected())
dev = EV_USBSERIAL;
#endif
#ifdef BLUETOOTH
if (jsble_has_peripheral_connection(dev))
dev = EV_BLUETOOTH;
#endif
return dev;
}
void jsiSetConsoleDevice(IOEventFlags device, bool force) {
if (force)
jsiStatus |= JSIS_CONSOLE_FORCED;
else
jsiStatus &= ~JSIS_CONSOLE_FORCED;
if (device == consoleDevice) return;
if (DEVICE_IS_USART(device) && !jshIsDeviceInitialised(device)) {
JshUSARTInfo inf;
jshUSARTInitInfo(&inf);
jshUSARTSetup(device, &inf);
}
bool echo = jsiEcho();
// If we're still in 'limbo', move any contents over
if (consoleDevice == EV_LIMBO) {
echo = false;
jshTransmitMove(EV_LIMBO, device);
jshUSARTKick(device);
}
// Log to the old console that we are moving consoles and then, once we have moved
// the console, log to the new console that we have moved consoles.
if (echo) { // intentionally not using jsiShowInputLine()
jsiConsoleRemoveInputLine();
jsiConsolePrintf("-> %s\n", jshGetDeviceString(device));
}
IOEventFlags oldDevice = consoleDevice;
consoleDevice = device;
if (echo) { // intentionally not using jsiShowInputLine()
jsiConsolePrintf("<- %s\n", jshGetDeviceString(oldDevice));
}
}
IOEventFlags jsiGetConsoleDevice() {
// The `consoleDevice` is the global used to hold the current console. This function
// encapsulates access.
return consoleDevice;
}
bool jsiIsConsoleDeviceForced() {
return (jsiStatus & JSIS_CONSOLE_FORCED)!=0;
}
/**
* Send a character to the console.
*/
NO_INLINE void jsiConsolePrintChar(char data) {
jshTransmit(consoleDevice, (unsigned char)data);
}
/**
* \breif Send a NULL terminated string to the console.
*/
NO_INLINE void jsiConsolePrintString(const char *str) {
while (*str) {
if (*str == '\n') jsiConsolePrintChar('\r');
jsiConsolePrintChar(*(str++));
}
}
void vcbprintf_callback_jsiConsolePrintString(const char *str, void* user_data) {
NOT_USED(user_data);
jsiConsolePrintString(str);
}
#ifdef USE_FLASH_MEMORY
// internal version that copies str from flash to an internal buffer
NO_INLINE void jsiConsolePrintString_int(const char *str) {
size_t len = flash_strlen(str);
char buff[len+1];
flash_strncpy(buff, str, len+1);
jsiConsolePrintString(buff);
}
#endif
/**
* Perform a printf to the console.
* Execute a printf command to the current JS console.
*/
#ifndef USE_FLASH_MEMORY
void jsiConsolePrintf(const char *fmt, ...) {
va_list argp;
va_start(argp, fmt);
vcbprintf((vcbprintf_callback)jsiConsolePrint,0, fmt, argp);
va_end(argp);
}
#else
void jsiConsolePrintf_int(const char *fmt, ...) {
// fmt is in flash and requires special aligned accesses
size_t len = flash_strlen(fmt);
char buff[len+1];
flash_strncpy(buff, fmt, len+1);
va_list argp;
va_start(argp, fmt);
vcbprintf(vcbprintf_callback_jsiConsolePrintString, 0, buff, argp);
va_end(argp);
}
#endif
/// Print the contents of a string var from a character position until end of line (adding an extra ' ' to delete a character if there was one)
void jsiConsolePrintStringVarUntilEOL(JsVar *v, size_t fromCharacter, size_t maxChars, bool andBackup) {
size_t chars = 0;
JsvStringIterator it;
jsvStringIteratorNew(&it, v, fromCharacter);
while (jsvStringIteratorHasChar(&it) && chars<maxChars) {
char ch = jsvStringIteratorGetCharAndNext(&it);
if (ch == '\n') break;
jsiConsolePrintChar(ch);
chars++;
}
jsvStringIteratorFree(&it);
if (andBackup) {
jsiConsolePrintChar(' ');chars++;
while (chars--) jsiConsolePrintChar(0x08); //delete
}
}
/** Print the contents of a string var - directly - starting from the given character, and
* using newLineCh to prefix new lines (if it is not 0). */
void jsiConsolePrintStringVarWithNewLineChar(JsVar *v, size_t fromCharacter, char newLineCh) {
JsvStringIterator it;
jsvStringIteratorNew(&it, v, fromCharacter);
while (jsvStringIteratorHasChar(&it)) {
char ch = jsvStringIteratorGetCharAndNext(&it);
if (ch == '\n') jsiConsolePrintChar('\r');
jsiConsolePrintChar(ch);
if (ch == '\n' && newLineCh) jsiConsolePrintChar(newLineCh);
}
jsvStringIteratorFree(&it);
}
/**
* Print the contents of a string var - directly.
*/
void jsiConsolePrintStringVar(JsVar *v) {
jsiConsolePrintStringVarWithNewLineChar(v,0,0);
}
/** Erase everything from the cursor position onwards */
void jsiConsoleEraseAfterCursor() {
jsiConsolePrint("\x1B[J"); // 27,91,74 - delete all to right and down
}
void jsiMoveCursor(size_t oldX, size_t oldY, size_t newX, size_t newY) {
// see http://www.termsys.demon.co.uk/vtansi.htm - we could do this better
// move cursor
while (oldX < newX) {
jsiConsolePrint("\x1B[C"); // 27,91,67 - right
oldX++;
}
while (oldX > newX) {
jsiConsolePrint("\x1B[D"); // 27,91,68 - left
oldX--;
}
while (oldY < newY) {
jsiConsolePrint("\x1B[B"); // 27,91,66 - down
oldY++;
}
while (oldY > newY) {
jsiConsolePrint("\x1B[A"); // 27,91,65 - up
oldY--;
}
}
void jsiMoveCursorChar(JsVar *v, size_t fromCharacter, size_t toCharacter) {
if (fromCharacter==toCharacter) return;
size_t oldX, oldY;
jsvGetLineAndCol(v, fromCharacter, &oldY, &oldX);
size_t newX, newY;
jsvGetLineAndCol(v, toCharacter, &newY, &newX);
jsiMoveCursor(oldX, oldY, newX, newY);
}
/// If the input line was shown in the console, remove it
void jsiConsoleRemoveInputLine() {
if (!inputLineRemoved) {
inputLineRemoved = true;
if (jsiEcho() && inputLine) { // intentionally not using jsiShowInputLine()
jsiMoveCursorChar(inputLine, inputCursorPos, 0); // move cursor to start of line
jsiConsolePrintChar('\r'); // go propery to start of line - past '>'
jsiConsoleEraseAfterCursor(); // delete all to right and down
#ifdef USE_DEBUGGER
if (jsiStatus & JSIS_IN_DEBUGGER) {
jsiConsolePrintChar(0x08); // d
jsiConsolePrintChar(0x08); // e
jsiConsolePrintChar(0x08); // b
jsiConsolePrintChar(0x08); // u
jsiConsolePrintChar(0x08); // g
}
#endif
}
}
}
/// If the input line has been removed, return it
void jsiConsoleReturnInputLine() {
if (inputLineRemoved) {
inputLineRemoved = false;
if (jsiEcho()) { // intentionally not using jsiShowInputLine()
#ifdef USE_DEBUGGER
if (jsiStatus & JSIS_IN_DEBUGGER)
jsiConsolePrint("debug");
#endif
if (jsiPasswordProtected())
jsiConsolePrint("password");
jsiConsolePrintChar('>'); // show the prompt
jsiConsolePrintStringVarWithNewLineChar(inputLine, 0, ':');
jsiMoveCursorChar(inputLine, jsvGetStringLength(inputLine), inputCursorPos);
}
}
}
/**
* Clear the input line of data. If updateConsole is set, it
* sends VT100 characters to physically remove the line from
* the user's terminal.
*/
void jsiClearInputLine(bool updateConsole) {
// input line already empty - don't do anything
if (jsvIsEmptyString(inputLine))
return;
// otherwise...
if (updateConsole)
jsiConsoleRemoveInputLine();
// clear input line
jsiInputLineCursorMoved();
jsvUnLock(inputLine);
inputLine = jsvNewFromEmptyString();
inputCursorPos = 0;
}
/* Sets 'busy state' - this is used for lighting up a busy indicator LED, which can be used for debugging power usage */
void jsiSetBusy(
JsiBusyDevice device, //!< ???
bool isBusy //!< ???
) {
#ifndef SAVE_ON_FLASH
static JsiBusyDevice business = 0;
if (isBusy)
business |= device;
else
business &= (JsiBusyDevice)~device;
if (pinBusyIndicator != PIN_UNDEFINED)
jshPinOutput(pinBusyIndicator, business!=0);
#endif
}
/**
* Set the status of a pin as a function of whether we are asleep.
* When called, if a pin is set for a sleep indicator, we set the pin to be true
* if the sleep type is awake and false otherwise.
*/
void jsiSetSleep(JsiSleepType isSleep) {
#ifndef SAVE_ON_FLASH
if (pinSleepIndicator != PIN_UNDEFINED)
jshPinOutput(pinSleepIndicator, isSleep == JSI_SLEEP_AWAKE);
#endif
}
static JsVarRef _jsiInitNamedArray(const char *name) {
JsVar *array = jsvObjectGetChild(execInfo.hiddenRoot, name, JSV_ARRAY);
JsVarRef arrayRef = 0;
if (array) arrayRef = jsvGetRef(jsvRef(array));
jsvUnLock(array);
return arrayRef;
}
// Used when recovering after being flashed
// 'claim' anything we are using
void jsiSoftInit(bool hasBeenReset) {
jsErrorFlags = 0;
lastJsErrorFlags = 0;
events = jsvNewEmptyArray();
inputLine = jsvNewFromEmptyString();
inputCursorPos = 0;
jsiLineNumberOffset = 0;
jsiInputLineCursorMoved();
inputLineIterator.var = 0;
jsfSetFlag(JSF_DEEP_SLEEP, 0);
#ifndef SAVE_ON_FLASH
pinBusyIndicator = DEFAULT_BUSY_PIN_INDICATOR;
pinSleepIndicator = DEFAULT_SLEEP_PIN_INDICATOR;
#endif
// Load timer/watch arrays
timerArray = _jsiInitNamedArray(JSI_TIMERS_NAME);
watchArray = _jsiInitNamedArray(JSI_WATCHES_NAME);
// Make sure we set up lastIdleTime, as this could be used
// when adding an interval from onInit (called below)
jsiLastIdleTime = jshGetSystemTime();
#ifndef EMBEDDED
jsiTimeSinceCtrlC = 0xFFFFFFFF;
#endif
// Set up interpreter flags and remove
JsVar *flags = jsvObjectGetChildIfExists(execInfo.hiddenRoot, JSI_JSFLAGS_NAME);
if (flags) {
jsFlags = jsvGetIntegerAndUnLock(flags);
jsvObjectRemoveChild(execInfo.hiddenRoot, JSI_JSFLAGS_NAME);
}
// Run wrapper initialisation stuff
jswInit();
// Run 'boot code' - textual JS in flash
jsfLoadBootCodeFromFlash(hasBeenReset);
// Now run initialisation code
JsVar *initCode = jsvObjectGetChildIfExists(execInfo.hiddenRoot, JSI_INIT_CODE_NAME);
if (initCode) {
jsvUnLock2(jspEvaluateVar(initCode, 0, 0), initCode);
jsvObjectRemoveChild(execInfo.hiddenRoot, JSI_INIT_CODE_NAME);
}
// Check any existing watches and set up interrupts for them
if (watchArray) {
JsVar *watchArrayPtr = jsvLock(watchArray);
JsvObjectIterator it;
jsvObjectIteratorNew(&it, watchArrayPtr);
while (jsvObjectIteratorHasValue(&it)) {
JsVar *watch = jsvObjectIteratorGetValue(&it);
JsVar *watchPin = jsvObjectGetChildIfExists(watch, "pin");
bool highAcc = jsvGetBoolAndUnLock(jsvObjectGetChildIfExists(watch, "hispeed"));
jshPinWatch(jshGetPinFromVar(watchPin), true, highAcc?JSPW_HIGH_SPEED:JSPW_NONE);
jsvUnLock2(watchPin, watch);
jsvObjectIteratorNext(&it);
}
jsvObjectIteratorFree(&it);
jsvUnLock(watchArrayPtr);
}
// Timers are stored by time in the future now, so no need
// to fiddle with them.
// Execute `init` events on `E`
jsiExecuteEventCallbackOn("E", INIT_CALLBACK_NAME, 0, 0);
// Execute the `onInit` function
JsVar *onInit = jsvObjectGetChildIfExists(execInfo.root, JSI_ONINIT_NAME);
if (onInit) {
if (jsiEcho()) jsiConsolePrint("Running onInit()...\n");
jsiExecuteEventCallback(0, onInit, 0, 0);
jsvUnLock(onInit);
}
}
/** Output the given variable as JSON, or if it exists
* in the root scope (and it's not 'existing') then just
* the name is dumped. */
void jsiDumpJSON(vcbprintf_callback user_callback, void *user_data, JsVar *data, JsVar *existing) {
// Check if it exists in the root scope
JsVar *name = jsvGetIndexOf(execInfo.root, data, true);
if (name && jsvIsString(name) && name!=existing) {
// if it does, print the name
cbprintf(user_callback, user_data, "%v", name);
} else {
// if it doesn't, print JSON
jsfGetJSONWithCallback(data, NULL, JSON_SOME_NEWLINES | JSON_PRETTY | JSON_SHOW_DEVICES, 0, user_callback, user_data);
}
}
NO_INLINE static void jsiDumpEvent(vcbprintf_callback user_callback, void *user_data, JsVar *parentName, JsVar *eventKeyName, JsVar *eventFn) {
JsVar *eventName = jsvNewFromStringVar(eventKeyName, strlen(JS_EVENT_PREFIX), JSVAPPENDSTRINGVAR_MAXLENGTH);
cbprintf(user_callback, user_data, "%v.on(%q, ", parentName, eventName);
jsvUnLock(eventName);
jsiDumpJSON(user_callback, user_data, eventFn, 0);
user_callback(");\n", user_data);
}
/** Output extra functions defined in an object such that they can be copied to a new device */
NO_INLINE void jsiDumpObjectState(vcbprintf_callback user_callback, void *user_data, JsVar *parentName, JsVar *parent) {
JsvIsInternalChecker checker = jsvGetInternalFunctionCheckerFor(parent);
JsvObjectIterator it;
jsvObjectIteratorNew(&it, parent);
while (jsvObjectIteratorHasValue(&it)) {
JsVar *child = jsvObjectIteratorGetKey(&it);
JsVar *data = jsvObjectIteratorGetValue(&it);
if (!checker || !checker(child)) {
if (jsvIsStringEqual(child, JSPARSE_PROTOTYPE_VAR)) {
// recurse to print prototypes
JsVar *name = jsvNewFromStringVar(parentName,0,JSVAPPENDSTRINGVAR_MAXLENGTH);
if (name) {
jsvAppendString(name, ".prototype");
jsiDumpObjectState(user_callback, user_data, name, data);
jsvUnLock(name);
}
} else if (jsvIsStringEqualOrStartsWith(child, JS_EVENT_PREFIX, true)) {
// Handle the case that this is an event
if (jsvIsArray(data)) {
JsvObjectIterator ait;
jsvObjectIteratorNew(&ait, data);
while (jsvObjectIteratorHasValue(&ait)) {
JsVar *v = jsvObjectIteratorGetValue(&ait);
jsiDumpEvent(user_callback, user_data, parentName, child, v);
jsvUnLock(v);
jsvObjectIteratorNext(&ait);
}
jsvObjectIteratorFree(&ait);
} else {
jsiDumpEvent(user_callback, user_data, parentName, child, data);
}
} else {
// It's a normal function
if (!jsvIsNativeFunction(data)) {
cbprintf(user_callback, user_data, "%v.%v = ", parentName, child);
jsiDumpJSON(user_callback, user_data, data, 0);
user_callback(";\n", user_data);
}
}
}
jsvUnLock2(data, child);
jsvObjectIteratorNext(&it);
}
jsvObjectIteratorFree(&it);
}
/** Dump the code required to initialise a serial port to this string */
void jsiDumpSerialInitialisation(vcbprintf_callback user_callback, void *user_data, const char *serialName, bool humanReadableDump) {
JsVar *serialVarName = jsvFindChildFromString(execInfo.root, serialName, false);
JsVar *serialVar = jsvSkipName(serialVarName);
if (serialVar) {
if (humanReadableDump)
jsiDumpObjectState(user_callback, user_data, serialVarName, serialVar);
JsVar *baud = jsvObjectGetChildIfExists(serialVar, USART_BAUDRATE_NAME);
JsVar *options = jsvObjectGetChildIfExists(serialVar, DEVICE_OPTIONS_NAME);
if (baud || options) {
int baudrate = (int)jsvGetInteger(baud);
if (baudrate <= 0) baudrate = DEFAULT_BAUD_RATE;
cbprintf(user_callback, user_data, "%s.setup(%d", serialName, baudrate);
if (jsvIsObject(options)) {
user_callback(", ", user_data);
jsfGetJSONWithCallback(options, NULL, JSON_SHOW_DEVICES, 0, user_callback, user_data);
}
user_callback(");\n", user_data);
}
jsvUnLock3(baud, options, serialVar);
}
jsvUnLock(serialVarName);
}
/** Dump the code required to initialise a SPI port to this string */
void jsiDumpDeviceInitialisation(vcbprintf_callback user_callback, void *user_data, const char *deviceName) {
JsVar *deviceVar = jsvObjectGetChildIfExists(execInfo.root, deviceName);
if (deviceVar) {
JsVar *options = jsvObjectGetChildIfExists(deviceVar, DEVICE_OPTIONS_NAME);
if (options) {
cbprintf(user_callback, user_data, "%s.setup(", deviceName);
if (jsvIsObject(options))
jsfGetJSONWithCallback(options, NULL, JSON_SHOW_DEVICES, 0, user_callback, user_data);
user_callback(");\n", user_data);
}
jsvUnLock2(options, deviceVar);
}
}
/** Dump all the code required to initialise hardware to this string */
void jsiDumpHardwareInitialisation(vcbprintf_callback user_callback, void *user_data, bool humanReadableDump) {
#ifndef NO_DUMP_HARDWARE_INITIALISATION // eg. Banglejs doesn't need to dump hardware initialisation
if (jsiStatus&JSIS_ECHO_OFF) user_callback("echo(0);", user_data);
#ifndef SAVE_ON_FLASH
if (pinBusyIndicator != DEFAULT_BUSY_PIN_INDICATOR) {
cbprintf(user_callback, user_data, "setBusyIndicator(%p);\n", pinBusyIndicator);
}
if (pinSleepIndicator != DEFAULT_SLEEP_PIN_INDICATOR) {
cbprintf(user_callback, user_data, "setSleepIndicator(%p);\n", pinSleepIndicator);
}
#endif
if (humanReadableDump && jsFlags/* non-standard flags */) {
JsVar *v = jsfGetFlags();
cbprintf(user_callback, user_data, "E.setFlags(%j);\n", v);
jsvUnLock(v);
}
#ifdef USB
jsiDumpSerialInitialisation(user_callback, user_data, "USB", humanReadableDump);
#endif
int i;
for (i=0;i<USART_COUNT;i++)
jsiDumpSerialInitialisation(user_callback, user_data, jshGetDeviceString(EV_SERIAL1+i), humanReadableDump);
for (i=0;i<SPI_COUNT;i++)
jsiDumpDeviceInitialisation(user_callback, user_data, jshGetDeviceString(EV_SPI1+i));
for (i=0;i<I2C_COUNT;i++)
jsiDumpDeviceInitialisation(user_callback, user_data, jshGetDeviceString(EV_I2C1+i));
// pins
Pin pin;
for (pin=0;jshIsPinValid(pin) && pin<JSH_PIN_COUNT;pin++) {
if (IS_PIN_USED_INTERNALLY(pin)) continue;
JshPinState state = jshPinGetState(pin);
JshPinState statem = state&JSHPINSTATE_MASK;
if (statem == JSHPINSTATE_GPIO_OUT && !jshGetPinStateIsManual(pin)) {
bool isOn = (state&JSHPINSTATE_PIN_IS_ON)!=0;
if (!isOn && IS_PIN_A_LED(pin)) continue;
cbprintf(user_callback, user_data, "digitalWrite(%p, %d);\n",pin,isOn?1:0);
} else {
#ifdef DEFAULT_CONSOLE_RX_PIN
// the console input pin is always a pullup now - which is expected
if (pin == DEFAULT_CONSOLE_RX_PIN &&
(statem == JSHPINSTATE_GPIO_IN_PULLUP ||
statem == JSHPINSTATE_AF_OUT)) continue;
#endif
#ifdef DEFAULT_CONSOLE_TX_PIN
// the console input pin is always a pullup now - which is expected
if (pin == DEFAULT_CONSOLE_TX_PIN &&
(statem == JSHPINSTATE_AF_OUT)) continue;
#endif
#if defined(BTN1_PININDEX) && defined(BTN1_PINSTATE)
if (pin == BTN1_PININDEX &&
statem == BTN1_PINSTATE) continue;
#endif
#if defined(BTN2_PININDEX) && defined(BTN2_PINSTATE)
if (pin == BTN2_PININDEX &&
statem == BTN2_PINSTATE) continue;
#endif
#if defined(BTN3_PININDEX) && defined(BTN3_PINSTATE)
if (pin == BTN3_PININDEX &&
statem == BTN3_PINSTATE) continue;
#endif
#if defined(BTN4_PININDEX) && defined(BTN4_PINSTATE)
if (pin == BTN4_PININDEX &&
statem == BTN4_PINSTATE) continue;
#endif
// don't bother with normal inputs, as they come up in this state (ish) anyway
if (!jshIsPinStateDefault(pin, statem)) {
// use getPinMode to get the correct string (remove some duplication)
JsVar *s = jswrap_io_getPinMode(pin);
if (s) cbprintf(user_callback, user_data, "pinMode(%p, %q%s);\n",pin,s,jshGetPinStateIsManual(pin)?"":", true");
jsvUnLock(s);
}
}
}
#ifdef BLUETOOTH
if (humanReadableDump)
jswrap_ble_dumpBluetoothInitialisation(user_callback, user_data);
#endif
#endif
}
// Used when shutting down before flashing
// 'release' anything we are using, but ensure that it doesn't get freed
void jsiSoftKill() {
// Execute `kill` events on `E`
jsiExecuteEventCallbackOn("E", KILL_CALLBACK_NAME, 0, 0);
jsiCheckErrors();
// Clear input line...
inputCursorPos = 0;
jsiInputLineCursorMoved();
jsvUnLock(inputLine);
inputLine=0;
// kill any wrapped stuff
jswKill();
// Stop all active timer tasks
jstReset();
// Unref Watches/etc
if (events) {
jsvUnLock(events);
events=0;
}
if (timerArray) {
jsvUnRefRef(timerArray);
timerArray=0;
}
if (watchArray) {
// Check any existing watches and disable interrupts for them
JsVar *watchArrayPtr = jsvLock(watchArray);
JsvObjectIterator it;
jsvObjectIteratorNew(&it, watchArrayPtr);
while (jsvObjectIteratorHasValue(&it)) {
JsVar *watchPtr = jsvObjectIteratorGetValue(&it);
JsVar *watchPin = jsvObjectGetChildIfExists(watchPtr, "pin");
jshPinWatch(jshGetPinFromVar(watchPin), false, JSPW_NONE);
jsvUnLock2(watchPin, watchPtr);
jsvObjectIteratorNext(&it);
}
jsvObjectIteratorFree(&it);
jsvUnRef(watchArrayPtr);
jsvUnLock(watchArrayPtr);
watchArray=0;
}
// Save flags if required
if (jsFlags)
jsvObjectSetChildAndUnLock(execInfo.hiddenRoot, JSI_JSFLAGS_NAME, jsvNewFromInteger(jsFlags));
// Save initialisation information
JsVar *initCode = jsvNewFromEmptyString();
if (initCode) { // out of memory
JsvStringIterator it;
jsvStringIteratorNew(&it, initCode, 0);
jsiDumpHardwareInitialisation((vcbprintf_callback)&jsvStringIteratorPrintfCallback, &it, false/*human readable*/);
jsvStringIteratorFree(&it);
jsvObjectSetChild(execInfo.hiddenRoot, JSI_INIT_CODE_NAME, initCode);
jsvUnLock(initCode);
}
// If we're here we're loading, saving or resetting - board is no longer at power-on state
jsiStatus &= ~JSIS_COMPLETELY_RESET; // loading code, remove this flag
jsiStatus &= ~JSIS_FIRST_BOOT; // this is no longer the first boot!
}
/** Called as part of initialisation - loads boot code.
*
* loadedFilename is set if we're loading a file, and we can use that for setting the __FILE__ variable
*/
void jsiSemiInit(bool autoLoad, JsfFileName *loadedFilename) {
// Set up execInfo.root/etc
jspInit();
// Set defaults
jsiStatus &= JSIS_SOFTINIT_MASK;
#ifndef SAVE_ON_FLASH
pinBusyIndicator = DEFAULT_BUSY_PIN_INDICATOR;
#endif
// Set __FILE__ if we have a filename available
if (loadedFilename)
jsvObjectSetChildAndUnLock(execInfo.root, "__FILE__", jsfVarFromName(*loadedFilename));
// Search for invalid storage and erase do this only on first boot.
// We need to do it before we check storage for any files!
#if !defined(EMSCRIPTEN) && !defined(SAVE_ON_FLASH)
bool fullTest = jsiStatus & JSIS_FIRST_BOOT;
if (fullTest) {
#ifdef BANGLEJS
jsiConsolePrintf("Checking storage...\n");
#endif
if (!jsfIsStorageValid(JSFSTT_NORMAL | JSFSTT_FIND_FILENAME_TABLE)) {
jsiConsolePrintf("Storage is corrupt.\n");
jsfResetStorage();
} else {
#ifdef BANGLEJS
jsiConsolePrintf("Storage Ok.\n");
#endif
}
}
#endif
/* If flash contains any code, then we should
Try and load from it... */
bool loadFlash = autoLoad && jsfFlashContainsCode();
if (loadFlash) {
jsiStatus &= ~JSIS_COMPLETELY_RESET; // loading code, remove this flag
jspSoftKill();
jsvSoftKill();
jsfLoadStateFromFlash();
jsvSoftInit();
jspSoftInit();
}
// If a password was set, apply the lock
JsVar *pwd = jsvObjectGetChildIfExists(execInfo.hiddenRoot, PASSWORD_VARIABLE_NAME);
if (pwd)
jsiStatus |= JSIS_PASSWORD_PROTECTED;
jsvUnLock(pwd);
// Softinit may run initialisation code that will overwrite defaults
jsiSoftInit(!autoLoad);
#ifdef ESP8266
jshSoftInit();
#endif
#ifdef ESP32
jshSoftInit();
#endif
if (jsiEcho()) { // intentionally not using jsiShowInputLine()
if (!loadFlash) {
#ifdef USE_TERMINAL
if (consoleDevice != EV_TERMINAL) // don't spam the terminal
#endif
jsiConsolePrint(
#ifndef LINUX
// set up terminal to avoid word wrap
"\e[?7l"
#endif
// rectangles @ http://www.network-science.de/ascii/
"\n"
" ____ _ \n"
"| __|___ ___ ___ _ _|_|___ ___ \n"
"| __|_ -| . | _| | | | | . |\n"
"|____|___| _|_| |___|_|_|_|___|\n"
" |_| espruino.com\n"
" "JS_VERSION" (c) 2021 G.Williams\n"
// Point out about donations - but don't bug people
// who bought boards that helped Espruino
#if !defined(PICO) && !defined(ESPRUINOBOARD) && !defined(ESPRUINOWIFI) && !defined(PUCKJS) && !defined(PIXLJS) && !defined(BANGLEJS) && !defined(EMSCRIPTEN)
"\n"
"Espruino is Open Source. Our work is supported\n"
"only by sales of official boards and donations:\n"
"http://espruino.com/Donate\n"
#endif
);
#ifdef ESP8266
jshPrintBanner();
#endif
}
#ifdef USE_TERMINAL
if (consoleDevice != EV_TERMINAL) // don't spam the terminal
#endif
jsiConsolePrint("\n"); // output new line
inputLineRemoved = true; // we need to put the input line back...
}
}
// The 'proper' init function - this should be called only once at bootup
void jsiInit(bool autoLoad) {
jsiStatus = JSIS_COMPLETELY_RESET | JSIS_FIRST_BOOT;
#if defined(LINUX) || !defined(USB)
consoleDevice = jsiGetPreferredConsoleDevice();
#else
consoleDevice = EV_LIMBO;
#endif
#ifndef RELEASE
jsnSanityTest();
#endif
jsiSemiInit(autoLoad, NULL/* no filename */);
// just in case, update the busy indicator
jsiSetBusy(BUSY_INTERACTIVE, false);
}
#ifndef LINUX
// This should get jsiOneSecondAfterStartupcalled from jshardware.c one second after startup,
// it does initialisation tasks like setting the right console device
void jsiOneSecondAfterStartup() {
/* When we start up, we put all console output into 'Limbo' (EV_LIMBO),
because we want to get started immediately, but we don't know where
to send any console output (USB takes a while to initialise). Not only
that but if we start transmitting on Serial right away, the first
char or two can get corrupted.
*/
#ifdef USB
if (consoleDevice == EV_LIMBO) {
consoleDevice = jsiGetPreferredConsoleDevice();
// now move any output that was made to Limbo to the given device
jshTransmitMove(EV_LIMBO, consoleDevice);
// finally, kick output - just in case
jshUSARTKick(consoleDevice);
} else {
// the console has already been moved
jshTransmitClearDevice(EV_LIMBO);
}
#endif
}
#endif
void jsiKill() {
jsiSoftKill();
jspKill();
}
int jsiCountBracketsInInput() {
int brackets = 0;
JsLex lex;
JsLex *oldLex = jslSetLex(&lex);
jslInit(inputLine);
while (lex.tk!=LEX_EOF &&
lex.tk!=LEX_UNFINISHED_COMMENT &&
lex.tk!=LEX_UNFINISHED_STR &&
lex.tk!=LEX_UNFINISHED_TEMPLATE_LITERAL) {
if (lex.tk=='{' || lex.tk=='[' || lex.tk=='(') brackets++;
if (lex.tk=='}' || lex.tk==']' || lex.tk==')') brackets--;
if (brackets<0) break; // closing bracket before opening!
jslGetNextToken();
}
if (lex.tk==LEX_UNFINISHED_STR)
brackets=0; // execute immediately so it can error
if (lex.tk==LEX_UNFINISHED_COMMENT || lex.tk==LEX_UNFINISHED_TEMPLATE_LITERAL)
brackets=1000; // if there's an unfinished comment, we're in the middle of something
jslKill();
jslSetLex(oldLex);
return brackets;
}
/// Tries to get rid of some memory (by clearing command history). Returns true if it got rid of something, false if it didn't.
bool jsiFreeMoreMemory() {
#ifdef USE_DEBUGGER
// remove debug history first
jsvObjectRemoveChild(execInfo.hiddenRoot, JSI_DEBUG_HISTORY_NAME);
#endif
// delete history one item at a time
JsVar *history = jsvObjectGetChildIfExists(execInfo.hiddenRoot, JSI_HISTORY_NAME);
if (!history) return 0;
JsVar *item = jsvArrayPopFirst(history);
bool freed = item!=0;
jsvUnLock2(item, history);
// TODO: could also free the array structure?
// TODO: could look at all streams (Serial1/HTTP/etc) and see if their buffers contain data that could be removed
return freed;
}
// Return the history array
static JsVar *jsiGetHistory() {
return jsvObjectGetChild(
execInfo.hiddenRoot,
#ifdef USE_DEBUGGER
(jsiStatus & JSIS_IN_DEBUGGER) ? JSI_DEBUG_HISTORY_NAME : JSI_HISTORY_NAME,
#else
JSI_HISTORY_NAME,
#endif
JSV_ARRAY);
}
// Add a new line to the command history
void jsiHistoryAddLine(JsVar *newLine) {
if (!newLine) return;
size_t len = jsvGetStringLength(newLine);
if (len==0 || len>500) return; // don't store history for lines of text over 500 chars
JsVar *history = jsiGetHistory();
if (!history) return; // out of memory
// if it was already in history, remove it - we'll put it back in front
JsVar *alreadyInHistory = jsvGetIndexOf(history, newLine, false/*not exact*/);
if (alreadyInHistory) {
jsvRemoveChild(history, alreadyInHistory);
jsvUnLock(alreadyInHistory);
}
// put it back in front
jsvArrayPush(history, newLine);