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Diffstat (limited to 'antlr/libantlr3c-3.4/src/antlr3debughandlers.c')
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1 files changed, 1047 insertions, 0 deletions
diff --git a/antlr/libantlr3c-3.4/src/antlr3debughandlers.c b/antlr/libantlr3c-3.4/src/antlr3debughandlers.c new file mode 100644 index 0000000..d5f177a --- /dev/null +++ b/antlr/libantlr3c-3.4/src/antlr3debughandlers.c @@ -0,0 +1,1047 @@ +/// \file +/// Provides the debugging functions invoked by a recognizer +/// built using the debug generator mode of the antlr tool. +/// See antlr3debugeventlistener.h for documentation. +/// + +// [The "BSD licence"] +// Copyright (c) 2005-2009 Jim Idle, Temporal Wave LLC +// http://www.temporal-wave.com +// http://www.linkedin.com/in/jimidle +// +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions +// are met: +// 1. Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// 2. Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in the +// documentation and/or other materials provided with the distribution. +// 3. The name of the author may not be used to endorse or promote products +// derived from this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, +// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include <antlr3.h> + +// Not everyone wishes to include the debugger stuff in their final deployment because +// it will then rely on being linked with the socket libraries. Hence if the programmer turns +// off the debugging, we do some dummy stuff that satifies compilers etc but means there is +// no debugger and no reliance on the socket librarires. If you set this flag, then using the -debug +// option to generate your code will produce code that just crashes, but then I presme you are smart +// enough to realize that building the libraries without debugger support means you can't call the +// debugger ;-) +// +#ifdef ANTLR3_NODEBUGGER +ANTLR3_API pANTLR3_DEBUG_EVENT_LISTENER +antlr3DebugListenerNew() +{ + ANTLR3_PRINTF("C runtime was compiled without debugger support. This program will crash!!"); + return NULL; +} +#else + +static ANTLR3_BOOLEAN handshake (pANTLR3_DEBUG_EVENT_LISTENER delboy); +static void enterRule (pANTLR3_DEBUG_EVENT_LISTENER delboy, const char * grammarFileName, const char * ruleName); +static void enterAlt (pANTLR3_DEBUG_EVENT_LISTENER delboy, int alt); +static void exitRule (pANTLR3_DEBUG_EVENT_LISTENER delboy, const char * grammarFileName, const char * ruleName); +static void enterSubRule (pANTLR3_DEBUG_EVENT_LISTENER delboy, int decisionNumber); +static void exitSubRule (pANTLR3_DEBUG_EVENT_LISTENER delboy, int decisionNumber); +static void enterDecision (pANTLR3_DEBUG_EVENT_LISTENER delboy, int decisionNumber); +static void exitDecision (pANTLR3_DEBUG_EVENT_LISTENER delboy, int decisionNumber); +static void consumeToken (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_COMMON_TOKEN t); +static void consumeHiddenToken (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_COMMON_TOKEN t); +static void LT (pANTLR3_DEBUG_EVENT_LISTENER delboy, int i, pANTLR3_COMMON_TOKEN t); +static void mark (pANTLR3_DEBUG_EVENT_LISTENER delboy, ANTLR3_MARKER marker); +static void rewindMark (pANTLR3_DEBUG_EVENT_LISTENER delboy, ANTLR3_MARKER marker); +static void rewindLast (pANTLR3_DEBUG_EVENT_LISTENER delboy); +static void beginBacktrack (pANTLR3_DEBUG_EVENT_LISTENER delboy, int level); +static void endBacktrack (pANTLR3_DEBUG_EVENT_LISTENER delboy, int level, ANTLR3_BOOLEAN successful); +static void location (pANTLR3_DEBUG_EVENT_LISTENER delboy, int line, int pos); +static void recognitionException (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_EXCEPTION e); +static void beginResync (pANTLR3_DEBUG_EVENT_LISTENER delboy); +static void endResync (pANTLR3_DEBUG_EVENT_LISTENER delboy); +static void semanticPredicate (pANTLR3_DEBUG_EVENT_LISTENER delboy, ANTLR3_BOOLEAN result, const char * predicate); +static void commence (pANTLR3_DEBUG_EVENT_LISTENER delboy); +static void terminate (pANTLR3_DEBUG_EVENT_LISTENER delboy); +static void consumeNode (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_BASE_TREE t); +static void LTT (pANTLR3_DEBUG_EVENT_LISTENER delboy, int i, pANTLR3_BASE_TREE t); +static void nilNode (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_BASE_TREE t); +static void errorNode (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_BASE_TREE t); +static void createNode (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_BASE_TREE t); +static void createNodeTok (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_BASE_TREE node, pANTLR3_COMMON_TOKEN token); +static void becomeRoot (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_BASE_TREE newRoot, pANTLR3_BASE_TREE oldRoot); +static void addChild (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_BASE_TREE root, pANTLR3_BASE_TREE child); +static void setTokenBoundaries (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_BASE_TREE t, ANTLR3_MARKER tokenStartIndex, ANTLR3_MARKER tokenStopIndex); +static void ack (pANTLR3_DEBUG_EVENT_LISTENER delboy); + +/// Create and initialize a new debug event listener that can be connected to +/// by ANTLRWorks and any other debugger via a socket. +/// +ANTLR3_API pANTLR3_DEBUG_EVENT_LISTENER +antlr3DebugListenerNew() +{ + pANTLR3_DEBUG_EVENT_LISTENER delboy; + + delboy = ANTLR3_CALLOC(1, sizeof(ANTLR3_DEBUG_EVENT_LISTENER)); + + if (delboy == NULL) + { + return NULL; + } + + // Initialize the API + // + delboy->addChild = addChild; + delboy->becomeRoot = becomeRoot; + delboy->beginBacktrack = beginBacktrack; + delboy->beginResync = beginResync; + delboy->commence = commence; + delboy->consumeHiddenToken = consumeHiddenToken; + delboy->consumeNode = consumeNode; + delboy->consumeToken = consumeToken; + delboy->createNode = createNode; + delboy->createNodeTok = createNodeTok; + delboy->endBacktrack = endBacktrack; + delboy->endResync = endResync; + delboy->enterAlt = enterAlt; + delboy->enterDecision = enterDecision; + delboy->enterRule = enterRule; + delboy->enterSubRule = enterSubRule; + delboy->exitDecision = exitDecision; + delboy->exitRule = exitRule; + delboy->exitSubRule = exitSubRule; + delboy->handshake = handshake; + delboy->location = location; + delboy->LT = LT; + delboy->LTT = LTT; + delboy->mark = mark; + delboy->nilNode = nilNode; + delboy->recognitionException = recognitionException; + delboy->rewind = rewindMark; + delboy->rewindLast = rewindLast; + delboy->semanticPredicate = semanticPredicate; + delboy->setTokenBoundaries = setTokenBoundaries; + delboy->terminate = terminate; + delboy->errorNode = errorNode; + + delboy->PROTOCOL_VERSION = 2; // ANTLR 3.1 is at protocol version 2 + + delboy->port = DEFAULT_DEBUGGER_PORT; + + return delboy; +} + +pANTLR3_DEBUG_EVENT_LISTENER +antlr3DebugListenerNewPort(ANTLR3_UINT32 port) +{ + pANTLR3_DEBUG_EVENT_LISTENER delboy; + + delboy = antlr3DebugListenerNew(); + + if (delboy != NULL) + { + delboy->port = port; + } + + return delboy; +} + +//-------------------------------------------------------------------------------- +// Support functions for sending stuff over the socket interface +// +static int +sockSend(SOCKET sock, const char * ptr, int len) +{ + int sent; + int thisSend; + + sent = 0; + + while (sent < len) + { + // Send as many bytes as we can + // + thisSend = send(sock, ptr, len - sent, 0); + + // Check for errors and tell the user if we got one + // + if (thisSend == -1) + { + return ANTLR3_FALSE; + } + + // Increment our offset by how many we were able to send + // + ptr += thisSend; + sent += thisSend; + } + return ANTLR3_TRUE; +} + +static ANTLR3_BOOLEAN +handshake (pANTLR3_DEBUG_EVENT_LISTENER delboy) +{ + /// Connection structure with which to wait and accept a connection from + /// a debugger. + /// + SOCKET serverSocket; + + // Connection structures to deal with the client after we accept the connection + // and the server while we accept a connection. + // + ANTLR3_SOCKADDRT client; + ANTLR3_SOCKADDRT server; + + // Buffer to construct our message in + // + char message[256]; + + // Specifies the length of the connection structure to accept() + // Windows use int, everyone else uses size_t + // + ANTLR3_SALENT sockaddr_len; + + // Option holder for setsockopt() + // + int optVal; + + if (delboy->initialized == ANTLR3_FALSE) + { + // Windows requires us to initialize WinSock. + // +#ifdef ANTLR3_WINDOWS + { + WORD wVersionRequested; + WSADATA wsaData; + int err; // Return code from WSAStartup + + // We must initialise the Windows socket system when the DLL is loaded. + // We are asking for Winsock 1.1 or better as we don't need anything + // too complicated for this. + // + wVersionRequested = MAKEWORD( 1, 1); + + err = WSAStartup( wVersionRequested, &wsaData ); + + if ( err != 0 ) + { + // Tell the user that we could not find a usable + // WinSock DLL + // + return FALSE; + } + } +#endif + + // Create the server socket, we are the server because we just wait until + // a debugger connects to the port we are listening on. + // + serverSocket = socket(AF_INET, SOCK_STREAM, 0); + + if (serverSocket == INVALID_SOCKET) + { + return ANTLR3_FALSE; + } + + // Set the listening port + // + server.sin_port = htons((unsigned short)delboy->port); + server.sin_family = AF_INET; + server.sin_addr.s_addr = htonl (INADDR_ANY); + + // We could allow a rebind on the same addr/port pair I suppose, but + // I imagine that most people will just want to start debugging one parser at once. + // Maybe change this at some point, but rejecting the bind at this point will ensure + // that people realize they have left something running in the background. + // + if (bind(serverSocket, (pANTLR3_SOCKADDRC)&server, sizeof(server)) == -1) + { + return ANTLR3_FALSE; + } + + // We have bound the socket to the port and address so we now ask the TCP subsystem + // to start listening on that address/port + // + if (listen(serverSocket, 1) == -1) + { + // Some error, just fail + // + return ANTLR3_FALSE; + } + + // Now we can try to accept a connection on the port + // + sockaddr_len = sizeof(client); + delboy->socket = accept(serverSocket, (pANTLR3_SOCKADDRC)&client, &sockaddr_len); + + // Having accepted a connection, we can stop listening and close down the socket + // + shutdown (serverSocket, 0x02); + ANTLR3_CLOSESOCKET (serverSocket); + + if (delboy->socket == -1) + { + return ANTLR3_FALSE; + } + + // Disable Nagle as this is essentially a chat exchange + // + optVal = 1; + setsockopt(delboy->socket, SOL_SOCKET, TCP_NODELAY, (const void *)&optVal, sizeof(optVal)); + + } + + // We now have a good socket connection with the debugging client, so we + // send it the protocol version we are using and what the name of the grammar + // is that we represent. + // + sprintf (message, "ANTLR %d\n", delboy->PROTOCOL_VERSION); + sockSend (delboy->socket, message, (int)strlen(message)); + sprintf (message, "grammar \"%s\n", delboy->grammarFileName->chars); + sockSend (delboy->socket, message, (int)strlen(message)); + ack (delboy); + + delboy->initialized = ANTLR3_TRUE; + + return ANTLR3_TRUE; +} + +// Send the supplied text and wait for an ack from the client +static void +transmit(pANTLR3_DEBUG_EVENT_LISTENER delboy, const char * ptr) +{ + sockSend(delboy->socket, ptr, (int)strlen(ptr)); + ack(delboy); +} + +static void +ack (pANTLR3_DEBUG_EVENT_LISTENER delboy) +{ + // Local buffer to read the next character in to + // + char buffer; + int rCount; + + // Ack terminates in a line feed, so we just wait for + // one of those. Speed is not of the essence so we don't need + // to buffer the input or anything. + // + do + { + rCount = recv(delboy->socket, &buffer, 1, 0); + } + while (rCount == 1 && buffer != '\n'); + + // If the socket ws closed on us, then we will get an error or + // (with a graceful close), 0. We can assume the the debugger stopped for some reason + // (such as Java crashing again). Therefore we just exit the program + // completely if we don't get the terminating '\n' for the ack. + // + if (rCount != 1) + { + ANTLR3_PRINTF("Exiting debugger as remote client closed the socket\n"); + ANTLR3_PRINTF("Received char count was %d, and last char received was %02X\n", rCount, buffer); + exit(0); + } +} + +// Given a buffer string and a source string, serialize the +// text, escaping any newlines and linefeeds. We have no need +// for speed here, this is the debugger. +// +void +serializeText(pANTLR3_STRING buffer, pANTLR3_STRING text) +{ + ANTLR3_UINT32 c; + ANTLR3_UCHAR character; + + // strings lead in with a " + // + buffer->append(buffer, "\t\""); + + if (text == NULL) + { + return; + } + + // Now we replace linefeeds, newlines and the escape + // leadin character '%' with their hex equivalents + // prefixed by '%' + // + for (c = 0; c < text->len; c++) + { + switch (character = text->charAt(text, c)) + { + case '\n': + + buffer->append(buffer, "%0A"); + break; + + case '\r': + + buffer->append(buffer, "%0D"); + break; + + case '\\': + + buffer->append(buffer, "%25"); + break; + + // Other characters: The Song Remains the Same. + // + default: + + buffer->addc(buffer, character); + break; + } + } +} + +// Given a token, create a stringified version of it, in the supplied +// buffer. We create a string for this in the debug 'object', if there +// is not one there already, and then reuse it here if asked to do this +// again. +// +pANTLR3_STRING +serializeToken(pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_COMMON_TOKEN t) +{ + // Do we already have a serialization buffer? + // + if (delboy->tokenString == NULL) + { + // No, so create one, using the string factory that + // the grammar name used, which is guaranteed to exist. + // 64 bytes will do us here for starters. + // + delboy->tokenString = delboy->grammarFileName->factory->newSize(delboy->grammarFileName->factory, 64); + } + + // Empty string + // + delboy->tokenString->set(delboy->tokenString, (const char *)""); + + // Now we serialize the elements of the token.Note that the debugger only + // uses 32 bits. + // + delboy->tokenString->addi(delboy->tokenString, (ANTLR3_INT32)(t->getTokenIndex(t))); + delboy->tokenString->addc(delboy->tokenString, '\t'); + delboy->tokenString->addi(delboy->tokenString, (ANTLR3_INT32)(t->getType(t))); + delboy->tokenString->addc(delboy->tokenString, '\t'); + delboy->tokenString->addi(delboy->tokenString, (ANTLR3_INT32)(t->getChannel(t))); + delboy->tokenString->addc(delboy->tokenString, '\t'); + delboy->tokenString->addi(delboy->tokenString, (ANTLR3_INT32)(t->getLine(t))); + delboy->tokenString->addc(delboy->tokenString, '\t'); + delboy->tokenString->addi(delboy->tokenString, (ANTLR3_INT32)(t->getCharPositionInLine(t))); + + // Now send the text that the token represents. + // + serializeText(delboy->tokenString, t->getText(t)); + + // Finally, as the debugger is a Java program it will expect to get UTF-8 + // encoded strings. We don't use UTF-8 internally to the C runtime, so we + // must force encode it. We have a method to do this in the string class, but + // it returns malloc space that we must free afterwards. + // + return delboy->tokenString->toUTF8(delboy->tokenString); +} + +// Given a tree node, create a stringified version of it in the supplied +// buffer. +// +pANTLR3_STRING +serializeNode(pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_BASE_TREE node) +{ + pANTLR3_COMMON_TOKEN token; + + + // Do we already have a serialization buffer? + // + if (delboy->tokenString == NULL) + { + // No, so create one, using the string factory that + // the grammar name used, which is guaranteed to exist. + // 64 bytes will do us here for starters. + // + delboy->tokenString = delboy->grammarFileName->factory->newSize(delboy->grammarFileName->factory, 64); + } + + // Empty string + // + delboy->tokenString->set(delboy->tokenString, (const char *)""); + + // Protect against bugs/errors etc + // + if (node == NULL) + { + return delboy->tokenString; + } + + // Now we serialize the elements of the node.Note that the debugger only + // uses 32 bits. + // + delboy->tokenString->addc(delboy->tokenString, '\t'); + + // Adaptor ID + // + delboy->tokenString->addi(delboy->tokenString, delboy->adaptor->getUniqueID(delboy->adaptor, node)); + delboy->tokenString->addc(delboy->tokenString, '\t'); + + // Type of the current token (which may be imaginary) + // + delboy->tokenString->addi(delboy->tokenString, delboy->adaptor->getType(delboy->adaptor, node)); + + // See if we have an actual token or just an imaginary + // + token = delboy->adaptor->getToken(delboy->adaptor, node); + + delboy->tokenString->addc(delboy->tokenString, '\t'); + if (token != NULL) + { + // Real token + // + delboy->tokenString->addi(delboy->tokenString, (ANTLR3_INT32)(token->getLine(token))); + delboy->tokenString->addc(delboy->tokenString, ' '); + delboy->tokenString->addi(delboy->tokenString, (ANTLR3_INT32)(token->getCharPositionInLine(token))); + } + else + { + // Imaginary tokens have no location + // + delboy->tokenString->addi(delboy->tokenString, -1); + delboy->tokenString->addc(delboy->tokenString, '\t'); + delboy->tokenString->addi(delboy->tokenString, -1); + } + + // Start Index of the node + // + delboy->tokenString->addc(delboy->tokenString, '\t'); + delboy->tokenString->addi(delboy->tokenString, (ANTLR3_UINT32)(delboy->adaptor->getTokenStartIndex(delboy->adaptor, node))); + + // Now send the text that the node represents. + // + serializeText(delboy->tokenString, delboy->adaptor->getText(delboy->adaptor, node)); + + // Finally, as the debugger is a Java program it will expect to get UTF-8 + // encoded strings. We don't use UTF-8 internally to the C runtime, so we + // must force encode it. We have a method to do this in the string class, but + // there is no utf8 string implementation as of yet + // + return delboy->tokenString->toUTF8(delboy->tokenString); +} + +//------------------------------------------------------------------------------------------------------------------ +// EVENTS +// +static void +enterRule (pANTLR3_DEBUG_EVENT_LISTENER delboy, const char * grammarFileName, const char * ruleName) +{ + char buffer[512]; + + // Create the message (speed is not of the essence) + // + sprintf(buffer, "enterRule\t%s\t%s\n", grammarFileName, ruleName); + transmit(delboy, buffer); +} + +static void +enterAlt (pANTLR3_DEBUG_EVENT_LISTENER delboy, int alt) +{ + char buffer[512]; + + // Create the message (speed is not of the essence) + // + sprintf(buffer, "enterAlt\t%d\n", alt); + transmit(delboy, buffer); +} + +static void +exitRule (pANTLR3_DEBUG_EVENT_LISTENER delboy, const char * grammarFileName, const char * ruleName) +{ + char buffer[512]; + + // Create the message (speed is not of the essence) + // + sprintf(buffer, "exitRule\t%s\t%s\n", grammarFileName, ruleName); + transmit(delboy, buffer); +} + +static void +enterSubRule (pANTLR3_DEBUG_EVENT_LISTENER delboy, int decisionNumber) +{ + char buffer[512]; + + // Create the message (speed is not of the essence) + // + sprintf(buffer, "enterSubRule\t%d\n", decisionNumber); + transmit(delboy, buffer); +} + +static void +exitSubRule (pANTLR3_DEBUG_EVENT_LISTENER delboy, int decisionNumber) +{ + char buffer[512]; + + // Create the message (speed is not of the essence) + // + sprintf(buffer, "exitSubRule\t%d\n", decisionNumber); + transmit(delboy, buffer); +} + +static void +enterDecision (pANTLR3_DEBUG_EVENT_LISTENER delboy, int decisionNumber) +{ + char buffer[512]; + + // Create the message (speed is not of the essence) + // + sprintf(buffer, "enterDecision\t%d\n", decisionNumber); + transmit(delboy, buffer); + +} + +static void +exitDecision (pANTLR3_DEBUG_EVENT_LISTENER delboy, int decisionNumber) +{ + char buffer[512]; + + // Create the message (speed is not of the essence) + // + sprintf(buffer, "exitDecision\t%d\n", decisionNumber); + transmit(delboy, buffer); +} + +static void +consumeToken (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_COMMON_TOKEN t) +{ + pANTLR3_STRING msg; + + // Create the serialized token + // + msg = serializeToken(delboy, t); + + // Insert the debug event indicator + // + msg->insert8(msg, 0, "consumeToken\t"); + + msg->addc(msg, '\n'); + + // Transmit the message and wait for ack + // + transmit(delboy, (const char *)(msg->chars)); +} + +static void +consumeHiddenToken (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_COMMON_TOKEN t) +{ + pANTLR3_STRING msg; + + // Create the serialized token + // + msg = serializeToken(delboy, t); + + // Insert the debug event indicator + // + msg->insert8(msg, 0, "consumeHiddenToken\t"); + + msg->addc(msg, '\n'); + + // Transmit the message and wait for ack + // + transmit(delboy, (const char *)(msg->chars)); +} + +// Looking at the next token event. +// +static void +LT (pANTLR3_DEBUG_EVENT_LISTENER delboy, int i, pANTLR3_COMMON_TOKEN t) +{ + pANTLR3_STRING msg; + + if (t != NULL) + { + // Create the serialized token + // + msg = serializeToken(delboy, t); + + // Insert the index parameter + // + msg->insert8(msg, 0, "\t"); + msg->inserti(msg, 0, i); + + // Insert the debug event indicator + // + msg->insert8(msg, 0, "LT\t"); + + msg->addc(msg, '\n'); + + // Transmit the message and wait for ack + // + transmit(delboy, (const char *)(msg->chars)); + } +} + +static void +mark (pANTLR3_DEBUG_EVENT_LISTENER delboy, ANTLR3_MARKER marker) +{ + char buffer[128]; + + sprintf(buffer, "mark\t%d\n", (ANTLR3_UINT32)(marker & 0xFFFFFFFF)); + + // Transmit the message and wait for ack + // + transmit(delboy, buffer); +} + +static void +rewindMark (pANTLR3_DEBUG_EVENT_LISTENER delboy, ANTLR3_MARKER marker) +{ + char buffer[128]; + + sprintf(buffer, "rewind\t%d\n", (ANTLR3_UINT32)(marker & 0xFFFFFFFF)); + + // Transmit the message and wait for ack + // + transmit(delboy, buffer); + +} + +static void +rewindLast (pANTLR3_DEBUG_EVENT_LISTENER delboy) +{ + transmit(delboy, (const char *)"rewind\n"); +} + +static void +beginBacktrack (pANTLR3_DEBUG_EVENT_LISTENER delboy, int level) +{ + char buffer[128]; + + sprintf(buffer, "beginBacktrack\t%d\n", (ANTLR3_UINT32)(level & 0xFFFFFFFF)); + + // Transmit the message and wait for ack + // + transmit(delboy, buffer); +} + +static void +endBacktrack (pANTLR3_DEBUG_EVENT_LISTENER delboy, int level, ANTLR3_BOOLEAN successful) +{ + char buffer[128]; + + sprintf(buffer, "endBacktrack\t%d\t%d\n", level, successful); + + // Transmit the message and wait for ack + // + transmit(delboy, buffer); +} + +static void +location (pANTLR3_DEBUG_EVENT_LISTENER delboy, int line, int pos) +{ + char buffer[128]; + + sprintf(buffer, "location\t%d\t%d\n", line, pos); + + // Transmit the message and wait for ack + // + transmit(delboy, buffer); +} + +static void +recognitionException (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_EXCEPTION e) +{ + char buffer[256]; + + sprintf(buffer, "exception\t%s\t%d\t%d\t%d\n", (char *)(e->name), (ANTLR3_INT32)(e->index), e->line, e->charPositionInLine); + + // Transmit the message and wait for ack + // + transmit(delboy, buffer); +} + +static void +beginResync (pANTLR3_DEBUG_EVENT_LISTENER delboy) +{ + transmit(delboy, (const char *)"beginResync\n"); +} + +static void +endResync (pANTLR3_DEBUG_EVENT_LISTENER delboy) +{ + transmit(delboy, (const char *)"endResync\n"); +} + +static void +semanticPredicate (pANTLR3_DEBUG_EVENT_LISTENER delboy, ANTLR3_BOOLEAN result, const char * predicate) +{ + unsigned char * buffer; + unsigned char * out; + + if (predicate != NULL) + { + buffer = (unsigned char *)ANTLR3_MALLOC(64 + 2*strlen(predicate)); + + if (buffer != NULL) + { + out = buffer + sprintf((char *)buffer, "semanticPredicate\t%s\t", result == ANTLR3_TRUE ? "true" : "false"); + + while (*predicate != '\0') + { + switch(*predicate) + { + case '\n': + + *out++ = '%'; + *out++ = '0'; + *out++ = 'A'; + break; + + case '\r': + + *out++ = '%'; + *out++ = '0'; + *out++ = 'D'; + break; + + case '%': + + *out++ = '%'; + *out++ = '0'; + *out++ = 'D'; + break; + + + default: + + *out++ = *predicate; + break; + } + + predicate++; + } + *out++ = '\n'; + *out++ = '\0'; + } + + // Send it and wait for the ack + // + transmit(delboy, (const char *)buffer); + } +} + +#ifdef ANTLR3_WINDOWS +#pragma warning (push) +#pragma warning (disable : 4100) +#endif + +static void +commence (pANTLR3_DEBUG_EVENT_LISTENER delboy) +{ + // Nothing to see here + // +} + +#ifdef ANTLR3_WINDOWS +#pragma warning (pop) +#endif + +static void +terminate (pANTLR3_DEBUG_EVENT_LISTENER delboy) +{ + // Terminate sequence + // + sockSend(delboy->socket, "terminate\n", 10); // Send out the command +} + +//---------------------------------------------------------------- +// Tree parsing events +// +static void +consumeNode (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_BASE_TREE t) +{ + pANTLR3_STRING buffer; + + buffer = serializeNode (delboy, t); + + // Now prepend the command + // + buffer->insert8 (buffer, 0, "consumeNode\t"); + buffer->addc (buffer, '\n'); + + // Send to the debugger and wait for the ack + // + transmit (delboy, (const char *)(delboy->tokenString->toUTF8(delboy->tokenString)->chars)); +} + +static void +LTT (pANTLR3_DEBUG_EVENT_LISTENER delboy, int i, pANTLR3_BASE_TREE t) +{ + pANTLR3_STRING buffer; + + buffer = serializeNode (delboy, t); + + // Now prepend the command + // + buffer->insert8 (buffer, 0, "\t"); + buffer->inserti (buffer, 0, i); + buffer->insert8 (buffer, 0, "LN\t"); + buffer->addc (buffer, '\n'); + + // Send to the debugger and wait for the ack + // + transmit (delboy, (const char *)(delboy->tokenString->toUTF8(delboy->tokenString)->chars)); +} + +static void +nilNode (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_BASE_TREE t) +{ + char buffer[128]; + sprintf(buffer, "nilNode\t%d\n", delboy->adaptor->getUniqueID(delboy->adaptor, t)); + transmit(delboy, buffer); +} + +static void +createNode (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_BASE_TREE t) +{ + // Do we already have a serialization buffer? + // + if (delboy->tokenString == NULL) + { + // No, so create one, using the string factory that + // the grammar name used, which is guaranteed to exist. + // 64 bytes will do us here for starters. + // + delboy->tokenString = delboy->grammarFileName->factory->newSize(delboy->grammarFileName->factory, 64); + } + + // Empty string + // + delboy->tokenString->set8(delboy->tokenString, (const char *)"createNodeFromTokenElements "); + + // Now we serialize the elements of the node.Note that the debugger only + // uses 32 bits. + // + // Adaptor ID + // + delboy->tokenString->addi(delboy->tokenString, delboy->adaptor->getUniqueID(delboy->adaptor, t)); + delboy->tokenString->addc(delboy->tokenString, '\t'); + + // Type of the current token (which may be imaginary) + // + delboy->tokenString->addi(delboy->tokenString, delboy->adaptor->getType(delboy->adaptor, t)); + + // The text that this node represents + // + serializeText(delboy->tokenString, delboy->adaptor->getText(delboy->adaptor, t)); + delboy->tokenString->addc(delboy->tokenString, '\n'); + + // Finally, as the debugger is a Java program it will expect to get UTF-8 + // encoded strings. We don't use UTF-8 internally to the C runtime, so we + // must force encode it. We have a method to do this in the string class, but + // there is no utf8 string implementation as of yet + // + transmit(delboy, (const char *)(delboy->tokenString->toUTF8(delboy->tokenString)->chars)); + +} +static void +errorNode (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_BASE_TREE t) +{ + // Do we already have a serialization buffer? + // + if (delboy->tokenString == NULL) + { + // No, so create one, using the string factory that + // the grammar name used, which is guaranteed to exist. + // 64 bytes will do us here for starters. + // + delboy->tokenString = delboy->grammarFileName->factory->newSize(delboy->grammarFileName->factory, 64); + } + + // Empty string + // + delboy->tokenString->set8(delboy->tokenString, (const char *)"errorNode\t"); + + // Now we serialize the elements of the node.Note that the debugger only + // uses 32 bits. + // + // Adaptor ID + // + delboy->tokenString->addi(delboy->tokenString, delboy->adaptor->getUniqueID(delboy->adaptor, t)); + delboy->tokenString->addc(delboy->tokenString, '\t'); + + // Type of the current token (which is an error) + // + delboy->tokenString->addi(delboy->tokenString, ANTLR3_TOKEN_INVALID); + + // The text that this node represents + // + serializeText(delboy->tokenString, delboy->adaptor->getText(delboy->adaptor, t)); + delboy->tokenString->addc(delboy->tokenString, '\n'); + + // Finally, as the debugger is a Java program it will expect to get UTF-8 + // encoded strings. We don't use UTF-8 internally to the C runtime, so we + // must force encode it. We have a method to do this in the string class, but + // there is no utf8 string implementation as of yet + // + transmit(delboy, (const char *)(delboy->tokenString->toUTF8(delboy->tokenString)->chars)); + +} + +static void +createNodeTok (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_BASE_TREE node, pANTLR3_COMMON_TOKEN token) +{ + char buffer[128]; + + sprintf(buffer, "createNode\t%d\t%d\n", delboy->adaptor->getUniqueID(delboy->adaptor, node), (ANTLR3_UINT32)token->getTokenIndex(token)); + + transmit(delboy, buffer); +} + +static void +becomeRoot (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_BASE_TREE newRoot, pANTLR3_BASE_TREE oldRoot) +{ + char buffer[128]; + + sprintf(buffer, "becomeRoot\t%d\t%d\n", delboy->adaptor->getUniqueID(delboy->adaptor, newRoot), + delboy->adaptor->getUniqueID(delboy->adaptor, oldRoot) + ); + transmit(delboy, buffer); +} + + +static void +addChild (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_BASE_TREE root, pANTLR3_BASE_TREE child) +{ + char buffer[128]; + + sprintf(buffer, "addChild\t%d\t%d\n", delboy->adaptor->getUniqueID(delboy->adaptor, root), + delboy->adaptor->getUniqueID(delboy->adaptor, child) + ); + transmit(delboy, buffer); +} + +static void +setTokenBoundaries (pANTLR3_DEBUG_EVENT_LISTENER delboy, pANTLR3_BASE_TREE t, ANTLR3_MARKER tokenStartIndex, ANTLR3_MARKER tokenStopIndex) +{ + char buffer[128]; + + sprintf(buffer, "becomeRoot\t%d\t%d\t%d\n", delboy->adaptor->getUniqueID(delboy->adaptor, t), + (ANTLR3_UINT32)tokenStartIndex, + (ANTLR3_UINT32)tokenStopIndex + ); + transmit(delboy, buffer); +} +#endif + |