com.sun.tools.javac.tree.JCTree.JCCase Java Examples

The following examples show how to use com.sun.tools.javac.tree.JCTree.JCCase. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: Flow.java    From lua-for-android with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up 
public void visitSwitch(JCSwitch tree) {
    ListBuffer<PendingExit> prevPendingExits = pendingExits;
    pendingExits = new ListBuffer<>();
    scan(tree.selector);
    boolean hasDefault = false;
    for (List<JCCase> l = tree.cases; l.nonEmpty(); l = l.tail) {
        alive = true;
        JCCase c = l.head;
        if (c.pat == null)
            hasDefault = true;
        else
            scan(c.pat);
        scanStats(c.stats);
        // Warn about fall-through if lint switch fallthrough enabled.
        if (alive &&
            lint.isEnabled(Lint.LintCategory.FALLTHROUGH) &&
            c.stats.nonEmpty() && l.tail.nonEmpty())
            log.warning(Lint.LintCategory.FALLTHROUGH,
                        l.tail.head.pos(),
                        Warnings.PossibleFallThroughIntoCase);
    }
    if (!hasDefault) {
        alive = true;
    }
    alive |= resolveBreaks(tree, prevPendingExits);
}
Example #2
Source File: PrettyCommentsPrinter.java    From EasyMPermission with MIT License 6 votes vote down vote up 
public void visitCase(JCCase tree) {
	try {
		if (tree.pat == null) {
			print("default");
		} else {
			print("case ");
			printExpr(tree.pat);
		}
		print(": ");
		println();
		indent();
		printStats(tree.stats);
		undent();
		align();
	} catch (IOException e) {
		throw new UncheckedIOException(e);
	}
}
Example #3
Source File: CRTable.java    From lua-for-android with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
/**  Visitor method: compute source positions for
 *    a list of case blocks of switch statements.
 */
public SourceRange cspCases(List<JCCase> trees) {
    if ((trees == null) || !(trees.nonEmpty())) return null;
    SourceRange list_sr = new SourceRange();
    for (List<JCCase> l = trees; l.nonEmpty(); l = l.tail) {
        list_sr.mergeWith(csp(l.head));
    }
    positions.put(trees, list_sr);
    return list_sr;
}
Example #4
Source File: Flow.java    From lua-for-android with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
public void visitSwitch(JCSwitch tree) {
    ListBuffer<FlowPendingExit> prevPendingExits = pendingExits;
    pendingExits = new ListBuffer<>();
    scan(tree.selector);
    for (List<JCCase> l = tree.cases; l.nonEmpty(); l = l.tail) {
        JCCase c = l.head;
        if (c.pat != null) {
            scan(c.pat);
        }
        scan(c.stats);
    }
    resolveBreaks(tree, prevPendingExits);
}
Example #5
Source File: Flow.java    From lua-for-android with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
public void visitSwitch(JCSwitch tree) {
    ListBuffer<AssignPendingExit> prevPendingExits = pendingExits;
    pendingExits = new ListBuffer<>();
    int nextadrPrev = nextadr;
    scanExpr(tree.selector);
    final Bits initsSwitch = new Bits(inits);
    final Bits uninitsSwitch = new Bits(uninits);
    boolean hasDefault = false;
    for (List<JCCase> l = tree.cases; l.nonEmpty(); l = l.tail) {
        inits.assign(initsSwitch);
        uninits.assign(uninits.andSet(uninitsSwitch));
        JCCase c = l.head;
        if (c.pat == null) {
            hasDefault = true;
        } else {
            scanExpr(c.pat);
        }
        if (hasDefault) {
            inits.assign(initsSwitch);
            uninits.assign(uninits.andSet(uninitsSwitch));
        }
        scan(c.stats);
        addVars(c.stats, initsSwitch, uninitsSwitch);
        if (!hasDefault) {
            inits.assign(initsSwitch);
            uninits.assign(uninits.andSet(uninitsSwitch));
        }
        // Warn about fall-through if lint switch fallthrough enabled.
    }
    if (!hasDefault) {
        inits.andSet(initsSwitch);
    }
    resolveBreaks(tree, prevPendingExits);
    nextadr = nextadrPrev;
}
Example #6
Source File: CRTable.java    From lua-for-android with BSD 3-Clause "New" or "Revised" License 4 votes vote down vote up 
public void visitCase(JCCase tree) {
    SourceRange sr = new SourceRange(startPos(tree), endPos(tree));
    sr.mergeWith(csp(tree.pat));
    sr.mergeWith(csp(tree.stats));
    result = sr;
}
Example #7
Source File: TransTypes.java    From lua-for-android with BSD 3-Clause "New" or "Revised" License 4 votes vote down vote up 
public void visitCase(JCCase tree) {
    tree.pat = translate(tree.pat, null);
    tree.stats = translate(tree.stats);
    result = tree;
}
Example #8
Source File: JavacTreeMaker.java    From EasyMPermission with MIT License 4 votes vote down vote up 
public JCSwitch Switch(JCExpression selector, List<JCCase> cases) {
	return invoke(Switch, selector, cases);
}
Example #9
Source File: JavacTreeMaker.java    From EasyMPermission with MIT License 4 votes vote down vote up 
public JCCase Case(JCExpression pat, List<JCStatement> stats) {
	return invoke(Case, pat, stats);
}
Example #10
Source File: HandleCleanup.java    From EasyMPermission with MIT License 4 votes vote down vote up 
@Override public void handle(AnnotationValues<Cleanup> annotation, JCAnnotation ast, JavacNode annotationNode) {
	handleFlagUsage(annotationNode, ConfigurationKeys.CLEANUP_FLAG_USAGE, "@Cleanup");
	
	if (inNetbeansEditor(annotationNode)) return;
	
	deleteAnnotationIfNeccessary(annotationNode, Cleanup.class);
	String cleanupName = annotation.getInstance().value();
	if (cleanupName.length() == 0) {
		annotationNode.addError("cleanupName cannot be the empty string.");
		return;
	}
	
	if (annotationNode.up().getKind() != Kind.LOCAL) {
		annotationNode.addError("@Cleanup is legal only on local variable declarations.");
		return;
	}
	
	JCVariableDecl decl = (JCVariableDecl)annotationNode.up().get();
	
	if (decl.init == null) {
		annotationNode.addError("@Cleanup variable declarations need to be initialized.");
		return;
	}
	
	JavacNode ancestor = annotationNode.up().directUp();
	JCTree blockNode = ancestor.get();
	
	final List<JCStatement> statements;
	if (blockNode instanceof JCBlock) {
		statements = ((JCBlock)blockNode).stats;
	} else if (blockNode instanceof JCCase) {
		statements = ((JCCase)blockNode).stats;
	} else if (blockNode instanceof JCMethodDecl) {
		statements = ((JCMethodDecl)blockNode).body.stats;
	} else {
		annotationNode.addError("@Cleanup is legal only on a local variable declaration inside a block.");
		return;
	}
	
	boolean seenDeclaration = false;
	ListBuffer<JCStatement> newStatements = new ListBuffer<JCStatement>();
	ListBuffer<JCStatement> tryBlock = new ListBuffer<JCStatement>();
	for (JCStatement statement : statements) {
		if (!seenDeclaration) {
			if (statement == decl) seenDeclaration = true;
			newStatements.append(statement);
		} else {
			tryBlock.append(statement);
		}
	}
	
	if (!seenDeclaration) {
		annotationNode.addError("LOMBOK BUG: Can't find this local variable declaration inside its parent.");
		return;
	}
	doAssignmentCheck(annotationNode, tryBlock.toList(), decl.name);
	
	JavacTreeMaker maker = annotationNode.getTreeMaker();
	JCFieldAccess cleanupMethod = maker.Select(maker.Ident(decl.name), annotationNode.toName(cleanupName));
	List<JCStatement> cleanupCall = List.<JCStatement>of(maker.Exec(
			maker.Apply(List.<JCExpression>nil(), cleanupMethod, List.<JCExpression>nil())));
	
	JCExpression preventNullAnalysis = preventNullAnalysis(maker, annotationNode, maker.Ident(decl.name));
	JCBinary isNull = maker.Binary(CTC_NOT_EQUAL, preventNullAnalysis, maker.Literal(CTC_BOT, null));
	
	JCIf ifNotNullCleanup = maker.If(isNull, maker.Block(0, cleanupCall), null);
	
	Context context = annotationNode.getContext();
	JCBlock finalizer = recursiveSetGeneratedBy(maker.Block(0, List.<JCStatement>of(ifNotNullCleanup)), ast, context);
	
	newStatements.append(setGeneratedBy(maker.Try(setGeneratedBy(maker.Block(0, tryBlock.toList()), ast, context), List.<JCCatch>nil(), finalizer), ast, context));
	
	if (blockNode instanceof JCBlock) {
		((JCBlock)blockNode).stats = newStatements.toList();
	} else if (blockNode instanceof JCCase) {
		((JCCase)blockNode).stats = newStatements.toList();
	} else if (blockNode instanceof JCMethodDecl) {
		((JCMethodDecl)blockNode).body.stats = newStatements.toList();
	} else throw new AssertionError("Should not get here");
	
	ancestor.rebuild();
}