/
WEmitter.java
6652 lines (6343 loc) · 129 KB
/
WEmitter.java
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// $ANTLR 2.7.2: "expandedWEmitter.g" -> "WEmitter.java"$
package processing.app.preproc;
import processing.app.*;
import processing.app.debug.*;
import java.io.*;
import java.util.*;
import antlr.CommonAST;
import antlr.DumpASTVisitor;
import antlr.TreeParser;
import antlr.Token;
import antlr.collections.AST;
import antlr.RecognitionException;
import antlr.ANTLRException;
import antlr.NoViableAltException;
import antlr.MismatchedTokenException;
import antlr.SemanticException;
import antlr.collections.impl.BitSet;
import antlr.ASTPair;
import antlr.collections.impl.ASTArray;
public class WEmitter extends antlr.TreeParser implements WEmitterTokenTypes
{
int tabs = 0;
PrintStream currentOutput = System.out;
int lineNum = 1;
String currentSource = "";
LineObject trueSourceFile;
final int lineDirectiveThreshold = Integer.MAX_VALUE;
PreprocessorInfoChannel preprocessorInfoChannel = null;
Stack sourceFiles = new Stack();
WEmitter( PreprocessorInfoChannel preprocChannel )
{
preprocessorInfoChannel = preprocChannel;
}
public void setOut(PrintStream out) {
this.currentOutput = out;
}
boolean childContains(AST ast, String childName) {
AST child = ast.getFirstChild();
AST childchild;
while (child != null) {
//System.out.println(child.getText());
if (child.getText().equals(childName)) {
// debug.println("getChild: found:" + name(ast));
return true;
}
if(child.getFirstChild() != null) {
if(childContains(child, childName)) {
return true;
}
}
child = child.getNextSibling();
}
return false;
}
public void printDeclarations(AST ast) throws RunnerException {
if (ast == null) {
return;
}
/*if(!childContains(ast, "serialEvent")) {
currentOutput.print("void serialEvent() {}");
}*/
if(!childContains(ast, "setup")) {
currentOutput.print("void setup() {}");
}
if(!childContains(ast, "loop")) {
currentOutput.print("void loop() {}");
}
}
void initializePrinting()
{
Vector preprocs = preprocessorInfoChannel.extractLinesPrecedingTokenNumber( new Integer(1) );
printPreprocs(preprocs);
/* if ( currentSource.equals("") ) {
trueSourceFile = new LineObject(currentSource);
currentOutput.println("# 1 \"" + currentSource + "\"\n");
sourceFiles.push(trueSourceFile);
}
*/
}
void finalizePrinting() {
// flush any leftover preprocessing instructions to the stream
printPreprocs(
preprocessorInfoChannel.extractLinesPrecedingTokenNumber(
new Integer( preprocessorInfoChannel.getMaxTokenNumber() + 1 ) ));
//print a newline so file ends at a new line
currentOutput.println();
}
void printPreprocs( Vector preprocs )
{
// if there was a preprocessingDirective previous to this token then
// print a newline and the directive, line numbers handled later
if ( preprocs.size() > 0 ) {
if ( trueSourceFile != null ) {
currentOutput.println(); //make sure we're starting a new line unless this is the first line directive
}
lineNum++;
Enumeration e = preprocs.elements();
while (e.hasMoreElements())
{
Object o = e.nextElement();
if ( o.getClass().getName().equals("LineObject") ) {
LineObject l = (LineObject) o;
// we always return to the trueSourceFile, we never enter it from another file
// force it to be returning if in fact we aren't currently in trueSourceFile
if (( trueSourceFile != null ) //trueSource exists
&& ( !currentSource.equals(trueSourceFile.getSource()) ) //currently not in trueSource
&& ( trueSourceFile.getSource().equals(l.getSource()) ) ) { //returning to trueSource
l.setEnteringFile( false );
l.setReturningToFile( true );
}
// print the line directive
currentOutput.println(l);
lineNum = l.getLine();
currentSource = l.getSource();
// the very first line directive always represents the true sourcefile
if ( trueSourceFile == null ) {
trueSourceFile = new LineObject(currentSource);
sourceFiles.push(trueSourceFile);
}
// keep our own stack of files entered
if ( l.getEnteringFile() ) {
sourceFiles.push(l);
}
// if returning to a file, pop the exited files off the stack
if ( l.getReturningToFile() ) {
LineObject top = (LineObject) sourceFiles.peek();
while (( top != trueSourceFile ) && (! l.getSource().equals(top.getSource()) )) {
sourceFiles.pop();
top = (LineObject) sourceFiles.peek();
}
}
}
else { // it was a #pragma or such
currentOutput.println(o);
lineNum++;
}
}
}
}
void print( TNode t ) {
int tLineNum = t.getLocalLineNum();
if ( tLineNum == 0 ) tLineNum = lineNum;
Vector preprocs = preprocessorInfoChannel.extractLinesPrecedingTokenNumber((Integer)t.getAttribute("tokenNumber"));
printPreprocs(preprocs);
if ( (lineNum != tLineNum) ) {
// we know we'll be newlines or a line directive or it probably
// is just the case that this token is on the next line
// either way start a new line and indent it
currentOutput.println();
lineNum++;
printTabs();
}
if ( lineNum == tLineNum ){
// do nothing special, we're at the right place
}
else {
int diff = tLineNum - lineNum;
if ( lineNum < tLineNum ) {
// print out the blank lines to bring us up to right line number
for ( ; lineNum < tLineNum ; lineNum++ ) {
currentOutput.println();
}
printTabs();
}
else { // just reset lineNum
lineNum = tLineNum;
}
}
currentOutput.print( t.getText() + " " );
}
/* This was my attempt at being smart about line numbers
It didn't work quite right but I don't know why, I didn't
have enough test cases. Worked ok compiling rcs and ghostscript
*/
void printAddingLineDirectives( TNode t ) {
int tLineNum = t.getLocalLineNum();
String tSource = (String) t.getAttribute("source");
if ( tSource == null ) tSource = currentSource;
if ( tLineNum == 0 ) tLineNum = lineNum;
Vector preprocs = preprocessorInfoChannel.extractLinesPrecedingTokenNumber((Integer)t.getAttribute("tokenNumber"));
printPreprocs(preprocs);
if ( (lineNum != tLineNum) || !currentSource.equals(tSource) ) {
// we know we'll be newlines or a line directive or it probably
// is just the case that this token is on the next line
// either way start a new line and indent it
currentOutput.println();
lineNum++;
printTabs();
}
if ( ( lineNum == tLineNum ) && ( currentSource.equals(tSource) ) ){
// do nothing special, we're at the right place
}
else if ( currentSource.equals(tSource) ) {
int diff = tLineNum - lineNum;
if (diff > 0 && diff < lineDirectiveThreshold) {
// print out the blank lines to bring us up to right line number
for ( ; lineNum < tLineNum ; lineNum++ ) {
currentOutput.println();
}
}
else { // print line directive to get us to right line number
// preserve flags 3 and 4 if present in current file
if ( ! sourceFiles.empty() ) {
LineObject l = (LineObject) sourceFiles.peek();
StringBuffer tFlags = new StringBuffer("");
if (l.getSystemHeader()) {
tFlags.append(" 3");
}
if (l.getTreatAsC()) {
tFlags.append(" 4");
}
currentOutput.println("# " + tLineNum + " \"" + tSource + "\"" + tFlags.toString());
lineNum = tLineNum;
}
}
printTabs();
}
else { // different source
Enumeration sources = sourceFiles.elements();
// see if we're returning to a file we entered earlier
boolean returningToEarlierFile = false;
while (sources.hasMoreElements()) {
LineObject l = (LineObject) sources.nextElement();
if (l.getSource().equals(tSource)) {
returningToEarlierFile = true;
break;
}
}
if (returningToEarlierFile) {
// pop off the files we're exiting, but never pop the trueSourceFile
LineObject l = (LineObject) sourceFiles.peek();
while ( ( l != trueSourceFile ) &&(! l.getSource().equals(tSource) ) ) {
sourceFiles.pop();
l = (LineObject) sourceFiles.peek();
}
// put in the return flag, plus others as needed
StringBuffer tFlags = new StringBuffer(" 2");
if (l.getSystemHeader()) {
tFlags.append(" 3");
}
if (l.getTreatAsC()) {
tFlags.append(" 4");
}
currentOutput.println("# " + tLineNum + " \"" + tSource + "\"" + tFlags);
lineNum = tLineNum;
currentSource = tSource;
printTabs();
}
else { // entering a file that wasn't in the original source
// pretend we're entering it from top of stack
currentOutput.println("# " + tLineNum + " \"" + tSource + "\"" + " 1");
lineNum = tLineNum;
currentSource = tSource;
printTabs();
}
}
currentOutput.print( t.getText() + " " );
}
/** It is not ok to print newlines from the String passed in as
it will screw up the line number handling **/
void print( String s ) {
currentOutput.print( s + " " );
}
void printTabs() {
for ( int i = 0; i< tabs; i++ ) {
currentOutput.print( "\t" );
}
}
void commaSep( TNode t ) {
print( t );
if ( t.getNextSibling() != null ) {
print( "," );
}
}
int traceDepth = 0;
public void reportError(RecognitionException ex) {
if ( ex != null) {
System.err.println("ANTLR Tree Parsing RecognitionException Error: " + ex.getClass().getName() + " " + ex );
ex.printStackTrace(System.err);
}
}
public void reportError(NoViableAltException ex) {
System.err.println("ANTLR Tree Parsing NoViableAltException Error: " + ex.toString());
TNode.printTree( ex.node );
ex.printStackTrace(System.err);
}
public void reportError(MismatchedTokenException ex) {
if ( ex != null) {
TNode.printTree( ex.node );
System.err.println("ANTLR Tree Parsing MismatchedTokenException Error: " + ex );
ex.printStackTrace(System.err);
}
}
public void reportError(String s) {
System.err.println("ANTLR Error from String: " + s);
}
public void reportWarning(String s) {
System.err.println("ANTLR Warning from String: " + s);
}
protected void match(AST t, int ttype) throws MismatchedTokenException {
//System.out.println("match("+ttype+"); cursor is "+t);
super.match(t, ttype);
}
public void match(AST t, BitSet b) throws MismatchedTokenException {
//System.out.println("match("+b+"); cursor is "+t);
super.match(t, b);
}
protected void matchNot(AST t, int ttype) throws MismatchedTokenException {
//System.out.println("matchNot("+ttype+"); cursor is "+t);
super.matchNot(t, ttype);
}
public void traceIn(String rname, AST t) {
traceDepth += 1;
for (int x=0; x<traceDepth; x++) System.out.print(" ");
super.traceIn(rname, t);
}
public void traceOut(String rname, AST t) {
for (int x=0; x<traceDepth; x++) System.out.print(" ");
super.traceOut(rname, t);
traceDepth -= 1;
}
public WEmitter() {
tokenNames = _tokenNames;
}
public final void translationUnit(AST _t) throws RecognitionException {
TNode translationUnit_AST_in = (TNode)_t;
if ( inputState.guessing==0 ) {
initializePrinting();
}
{
if (_t==null) _t=ASTNULL;
switch ( _t.getType()) {
case LITERAL_asm:
case SEMI:
case NDeclaration:
case NFunctionDef:
case NTypeMissing:
{
externalList(_t);
_t = _retTree;
break;
}
case 3:
{
break;
}
default:
{
throw new NoViableAltException(_t);
}
}
}
if ( inputState.guessing==0 ) {
finalizePrinting();
}
_retTree = _t;
}
public final void externalList(AST _t) throws RecognitionException {
TNode externalList_AST_in = (TNode)_t;
try { // for error handling
{
int _cnt5=0;
_loop5:
do {
if (_t==null) _t=ASTNULL;
if ((_tokenSet_0.member(_t.getType()))) {
externalDef(_t);
_t = _retTree;
}
else {
if ( _cnt5>=1 ) { break _loop5; } else {throw new NoViableAltException(_t);}
}
_cnt5++;
} while (true);
}
}
catch (RecognitionException ex) {
if (inputState.guessing==0) {
reportError(ex);
if (_t!=null) {_t = _t.getNextSibling();}
} else {
throw ex;
}
}
_retTree = _t;
}
public final void externalDef(AST _t) throws RecognitionException {
TNode externalDef_AST_in = (TNode)_t;
TNode s = null;
try { // for error handling
if (_t==null) _t=ASTNULL;
switch ( _t.getType()) {
case NDeclaration:
{
declaration(_t);
_t = _retTree;
break;
}
case NFunctionDef:
{
functionDef(_t);
_t = _retTree;
break;
}
case LITERAL_asm:
{
asm_expr(_t);
_t = _retTree;
break;
}
case NTypeMissing:
{
typelessDeclaration(_t);
_t = _retTree;
break;
}
case SEMI:
{
s = (TNode)_t;
match(_t,SEMI);
_t = _t.getNextSibling();
if ( inputState.guessing==0 ) {
print( s );
}
break;
}
default:
{
throw new NoViableAltException(_t);
}
}
}
catch (RecognitionException ex) {
if (inputState.guessing==0) {
reportError(ex);
if (_t!=null) {_t = _t.getNextSibling();}
} else {
throw ex;
}
}
_retTree = _t;
}
public final void declaration(AST _t) throws RecognitionException {
TNode declaration_AST_in = (TNode)_t;
TNode s = null;
try { // for error handling
AST __t13 = _t;
TNode tmp1_AST_in = (TNode)_t;
match(_t,NDeclaration);
_t = _t.getFirstChild();
declSpecifiers(_t);
_t = _retTree;
{
if (_t==null) _t=ASTNULL;
switch ( _t.getType()) {
case NInitDecl:
{
initDeclList(_t);
_t = _retTree;
break;
}
case SEMI:
{
break;
}
default:
{
throw new NoViableAltException(_t);
}
}
}
{
int _cnt16=0;
_loop16:
do {
if (_t==null) _t=ASTNULL;
if ((_t.getType()==SEMI)) {
s = (TNode)_t;
match(_t,SEMI);
_t = _t.getNextSibling();
if ( inputState.guessing==0 ) {
print( s );
}
}
else {
if ( _cnt16>=1 ) { break _loop16; } else {throw new NoViableAltException(_t);}
}
_cnt16++;
} while (true);
}
_t = __t13;
_t = _t.getNextSibling();
}
catch (RecognitionException ex) {
if (inputState.guessing==0) {
reportError(ex);
if (_t!=null) {_t = _t.getNextSibling();}
} else {
throw ex;
}
}
_retTree = _t;
}
public final void functionDef(AST _t) throws RecognitionException {
TNode functionDef_AST_in = (TNode)_t;
TNode v = null;
try { // for error handling
AST __t123 = _t;
TNode tmp2_AST_in = (TNode)_t;
match(_t,NFunctionDef);
_t = _t.getFirstChild();
{
if (_t==null) _t=ASTNULL;
switch ( _t.getType()) {
case LITERAL_volatile:
case LITERAL_struct:
case LITERAL_union:
case LITERAL_enum:
case LITERAL_extern:
case LITERAL_static:
case LITERAL_const:
case LITERAL_void:
case LITERAL_char:
case LITERAL_short:
case LITERAL_int:
case LITERAL_long:
case LITERAL_float:
case LITERAL_double:
case LITERAL_signed:
case LITERAL_unsigned:
case NTypedefName:
case LITERAL_inline:
case LITERAL_byte:
case LITERAL_boolean:
case LITERAL_typeof:
case LITERAL___complex:
{
functionDeclSpecifiers(_t);
_t = _retTree;
break;
}
case NDeclarator:
{
break;
}
default:
{
throw new NoViableAltException(_t);
}
}
}
declarator(_t);
_t = _retTree;
{
_loop126:
do {
if (_t==null) _t=ASTNULL;
switch ( _t.getType()) {
case NDeclaration:
{
declaration(_t);
_t = _retTree;
break;
}
case VARARGS:
{
v = (TNode)_t;
match(_t,VARARGS);
_t = _t.getNextSibling();
if ( inputState.guessing==0 ) {
print( v );
}
break;
}
default:
{
break _loop126;
}
}
} while (true);
}
compoundStatement(_t);
_t = _retTree;
_t = __t123;
_t = _t.getNextSibling();
}
catch (RecognitionException ex) {
if (inputState.guessing==0) {
reportError(ex);
if (_t!=null) {_t = _t.getNextSibling();}
} else {
throw ex;
}
}
_retTree = _t;
}
public final void asm_expr(AST _t) throws RecognitionException {
TNode asm_expr_AST_in = (TNode)_t;
TNode a = null;
TNode v = null;
TNode lc = null;
TNode rc = null;
TNode s = null;
try { // for error handling
AST __t10 = _t;
a = _t==ASTNULL ? null :(TNode)_t;
match(_t,LITERAL_asm);
_t = _t.getFirstChild();
if ( inputState.guessing==0 ) {
print( a );
}
{
if (_t==null) _t=ASTNULL;
switch ( _t.getType()) {
case LITERAL_volatile:
{
v = (TNode)_t;
match(_t,LITERAL_volatile);
_t = _t.getNextSibling();
if ( inputState.guessing==0 ) {
print( v );
}
break;
}
case LCURLY:
{
break;
}
default:
{
throw new NoViableAltException(_t);
}
}
}
lc = (TNode)_t;
match(_t,LCURLY);
_t = _t.getNextSibling();
if ( inputState.guessing==0 ) {
print( lc ); tabs++;
}
expr(_t);
_t = _retTree;
rc = (TNode)_t;
match(_t,RCURLY);
_t = _t.getNextSibling();
if ( inputState.guessing==0 ) {
tabs--; print( rc );
}
s = (TNode)_t;
match(_t,SEMI);
_t = _t.getNextSibling();
if ( inputState.guessing==0 ) {
print( s );
}
_t = __t10;
_t = _t.getNextSibling();
}
catch (RecognitionException ex) {
if (inputState.guessing==0) {
reportError(ex);
if (_t!=null) {_t = _t.getNextSibling();}
} else {
throw ex;
}
}
_retTree = _t;
}
public final void typelessDeclaration(AST _t) throws RecognitionException {
TNode typelessDeclaration_AST_in = (TNode)_t;
TNode s = null;
try { // for error handling
AST __t8 = _t;
TNode tmp3_AST_in = (TNode)_t;
match(_t,NTypeMissing);
_t = _t.getFirstChild();
initDeclList(_t);
_t = _retTree;
s = (TNode)_t;
match(_t,SEMI);
_t = _t.getNextSibling();
_t = __t8;
_t = _t.getNextSibling();
if ( inputState.guessing==0 ) {
print( s );
}
}
catch (RecognitionException ex) {
if (inputState.guessing==0) {
reportError(ex);
if (_t!=null) {_t = _t.getNextSibling();}
} else {
throw ex;
}
}
_retTree = _t;
}
public final void initDeclList(AST _t) throws RecognitionException {
TNode initDeclList_AST_in = (TNode)_t;
try { // for error handling
initDecl(_t);
_t = _retTree;
{
_loop76:
do {
if (_t==null) _t=ASTNULL;
if ((_t.getType()==NInitDecl)) {
if ( inputState.guessing==0 ) {
print( "," );
}
initDecl(_t);
_t = _retTree;
}
else {
break _loop76;
}
} while (true);
}
}
catch (RecognitionException ex) {
if (inputState.guessing==0) {
reportError(ex);
if (_t!=null) {_t = _t.getNextSibling();}
} else {
throw ex;
}
}
_retTree = _t;
}
public final void expr(AST _t) throws RecognitionException {
TNode expr_AST_in = (TNode)_t;
try { // for error handling
if (_t==null) _t=ASTNULL;
switch ( _t.getType()) {
case ASSIGN:
case STAR:
case DIV_ASSIGN:
case PLUS_ASSIGN:
case MINUS_ASSIGN:
case STAR_ASSIGN:
case MOD_ASSIGN:
case RSHIFT_ASSIGN:
case LSHIFT_ASSIGN:
case BAND_ASSIGN:
case BOR_ASSIGN:
case BXOR_ASSIGN:
case LOR:
case LAND:
case BOR:
case BXOR:
case BAND:
case EQUAL:
case NOT_EQUAL:
case LT:
case LTE:
case GT:
case GTE:
case LSHIFT:
case RSHIFT:
case PLUS:
case MINUS:
case DIV:
case MOD:
case NCommaExpr:
{
binaryExpr(_t);
_t = _retTree;
break;
}
case QUESTION:
{
conditionalExpr(_t);
_t = _retTree;
break;
}
case NCast:
{
castExpr(_t);
_t = _retTree;
break;
}
case INC:
case DEC:
case LITERAL_sizeof:
case NUnaryExpr:
case LITERAL___alignof:
{
unaryExpr(_t);
_t = _retTree;
break;
}
case NPostfixExpr:
{
postfixExpr(_t);
_t = _retTree;
break;
}
case ID:
case CharLiteral:
case NExpressionGroup:
case NStringSeq:
case Number:
{
primaryExpr(_t);
_t = _retTree;
break;
}
case NEmptyExpression:
{
emptyExpr(_t);
_t = _retTree;
break;
}
case LPAREN:
{
compoundStatementExpr(_t);
_t = _retTree;
break;
}
case NInitializer:
case NLcurlyInitializer:
{
initializer(_t);
_t = _retTree;
break;
}
case NRangeExpr:
{
rangeExpr(_t);
_t = _retTree;
break;
}
case NGnuAsmExpr:
{
gnuAsmExpr(_t);
_t = _retTree;
break;
}
default:
{
throw new NoViableAltException(_t);
}
}
}
catch (RecognitionException ex) {
if (inputState.guessing==0) {
reportError(ex);
if (_t!=null) {_t = _t.getNextSibling();}
} else {
throw ex;
}
}
_retTree = _t;
}
public final void declSpecifiers(AST _t) throws RecognitionException {
TNode declSpecifiers_AST_in = (TNode)_t;
try { // for error handling
{
int _cnt19=0;
_loop19:
do {
if (_t==null) _t=ASTNULL;
switch ( _t.getType()) {
case LITERAL_typedef:
case LITERAL_auto:
case LITERAL_register:
case LITERAL_extern:
case LITERAL_static:
case LITERAL_inline:
{
storageClassSpecifier(_t);
_t = _retTree;
break;
}
case LITERAL_volatile:
case LITERAL_const:
{
typeQualifier(_t);
_t = _retTree;
break;
}
case LITERAL_struct:
case LITERAL_union:
case LITERAL_enum:
case LITERAL_void:
case LITERAL_char:
case LITERAL_short:
case LITERAL_int:
case LITERAL_long:
case LITERAL_float:
case LITERAL_double:
case LITERAL_signed:
case LITERAL_unsigned:
case NTypedefName:
case LITERAL_byte:
case LITERAL_boolean:
case LITERAL_typeof:
case LITERAL___complex:
{
typeSpecifier(_t);
_t = _retTree;
break;
}
default:
{
if ( _cnt19>=1 ) { break _loop19; } else {throw new NoViableAltException(_t);}
}
}
_cnt19++;
} while (true);
}
}
catch (RecognitionException ex) {
if (inputState.guessing==0) {
reportError(ex);
if (_t!=null) {_t = _t.getNextSibling();}
} else {
throw ex;
}
}
_retTree = _t;