Java Code Examples for jdk.nashorn.internal.ir.CatchNode#getExceptionCondition()
The following examples show how to use
jdk.nashorn.internal.ir.CatchNode#getExceptionCondition() .
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Example 1
| Source File: JSONWriter.java From TencentKona-8 with GNU General Public License v2.0 | 6 votes |
|
@Override
public boolean enterCatchNode(final CatchNode catchNode) {
enterDefault(catchNode);
type("CatchClause");
comma();
property("param");
catchNode.getException().accept(this);
comma();
final Node guard = catchNode.getExceptionCondition();
if (guard != null) {
property("guard");
guard.accept(this);
comma();
}
property("body");
catchNode.getBody().accept(this);
return leave();
}
Example 2
| Source File: JSONWriter.java From jdk8u60 with GNU General Public License v2.0 | 6 votes |
|
@Override
public boolean enterCatchNode(final CatchNode catchNode) {
enterDefault(catchNode);
type("CatchClause");
comma();
property("param");
catchNode.getException().accept(this);
comma();
final Node guard = catchNode.getExceptionCondition();
if (guard != null) {
property("guard");
guard.accept(this);
comma();
}
property("body");
catchNode.getBody().accept(this);
return leave();
}
Example 3
| Source File: JSONWriter.java From openjdk-jdk8u with GNU General Public License v2.0 | 6 votes |
|
@Override
public boolean enterCatchNode(final CatchNode catchNode) {
enterDefault(catchNode);
type("CatchClause");
comma();
property("param");
catchNode.getException().accept(this);
comma();
final Node guard = catchNode.getExceptionCondition();
if (guard != null) {
property("guard");
guard.accept(this);
comma();
}
property("body");
catchNode.getBody().accept(this);
return leave();
}
Example 4
| Source File: JSONWriter.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 6 votes |
|
@Override
public boolean enterCatchNode(final CatchNode catchNode) {
enterDefault(catchNode);
type("CatchClause");
comma();
property("param");
catchNode.getException().accept(this);
comma();
final Node guard = catchNode.getExceptionCondition();
if (guard != null) {
property("guard");
guard.accept(this);
comma();
}
property("body");
catchNode.getBody().accept(this);
return leave();
}
Example 5
| Source File: JSONWriter.java From openjdk-jdk9 with GNU General Public License v2.0 | 6 votes |
|
@Override
public boolean enterCatchNode(final CatchNode catchNode) {
enterDefault(catchNode);
type("CatchClause");
comma();
property("param");
catchNode.getException().accept(this);
comma();
final Node guard = catchNode.getExceptionCondition();
if (guard != null) {
property("guard");
guard.accept(this);
comma();
}
property("body");
catchNode.getBody().accept(this);
return leave();
}
Example 6
| Source File: JSONWriter.java From hottub with GNU General Public License v2.0 | 6 votes |
|
@Override
public boolean enterCatchNode(final CatchNode catchNode) {
enterDefault(catchNode);
type("CatchClause");
comma();
property("param");
catchNode.getException().accept(this);
comma();
final Node guard = catchNode.getExceptionCondition();
if (guard != null) {
property("guard");
guard.accept(this);
comma();
}
property("body");
catchNode.getBody().accept(this);
return leave();
}
Example 7
| Source File: JSONWriter.java From openjdk-8-source with GNU General Public License v2.0 | 6 votes |
|
@Override
public boolean enterCatchNode(final CatchNode catchNode) {
enterDefault(catchNode);
type("CatchClause");
comma();
property("param");
catchNode.getException().accept(this);
comma();
final Node guard = catchNode.getExceptionCondition();
if (guard != null) {
property("guard");
guard.accept(this);
comma();
}
property("body");
catchNode.getBody().accept(this);
return leave();
}
Example 8
| Source File: JSONWriter.java From openjdk-8 with GNU General Public License v2.0 | 6 votes |
|
@Override
public boolean enterCatchNode(final CatchNode catchNode) {
enterDefault(catchNode);
type("CatchClause");
comma();
property("param");
catchNode.getException().accept(this);
comma();
final Node guard = catchNode.getExceptionCondition();
if (guard != null) {
property("guard");
guard.accept(this);
comma();
}
property("body");
catchNode.getBody().accept(this);
return leave();
}
Example 9
| Source File: JSONWriter.java From jdk8u_nashorn with GNU General Public License v2.0 | 6 votes |
|
@Override
public boolean enterCatchNode(final CatchNode catchNode) {
enterDefault(catchNode);
type("CatchClause");
comma();
property("param");
catchNode.getException().accept(this);
comma();
final Node guard = catchNode.getExceptionCondition();
if (guard != null) {
property("guard");
guard.accept(this);
comma();
}
property("body");
catchNode.getBody().accept(this);
return leave();
}
Example 10
| Source File: JSONWriter.java From nashorn with GNU General Public License v2.0 | 6 votes |
|
@Override
public boolean enterCatchNode(final CatchNode catchNode) {
enterDefault(catchNode);
type("CatchClause");
comma();
property("param");
catchNode.getException().accept(this);
comma();
final Node guard = catchNode.getExceptionCondition();
if (guard != null) {
property("guard");
guard.accept(this);
comma();
}
property("body");
catchNode.getBody().accept(this);
return leave();
}
Example 11
| Source File: FinalizeTypes.java From nashorn with GNU General Public License v2.0 | 5 votes |
|
@Override
public Node leaveCatchNode(final CatchNode catchNode) {
final Expression exceptionCondition = catchNode.getExceptionCondition();
if (exceptionCondition != null) {
return catchNode.setExceptionCondition(convert(exceptionCondition, Type.BOOLEAN));
}
return catchNode;
}
Example 12
| Source File: CodeGenerator.java From openjdk-8-source with GNU General Public License v2.0 | 4 votes |
|
@Override
public boolean enterTryNode(final TryNode tryNode) {
lineNumber(tryNode);
final Block body = tryNode.getBody();
final List<Block> catchBlocks = tryNode.getCatchBlocks();
final Symbol symbol = tryNode.getException();
final Label entry = new Label("try");
final Label recovery = new Label("catch");
final Label exit = tryNode.getExit();
final Label skip = new Label("skip");
method.label(entry);
body.accept(this);
if (!body.hasTerminalFlags()) {
method._goto(skip);
}
method.label(exit);
method._catch(recovery);
method.store(symbol);
for (int i = 0; i < catchBlocks.size(); i++) {
final Block catchBlock = catchBlocks.get(i);
//TODO this is very ugly - try not to call enter/leave methods directly
//better to use the implicit lexical context scoping given by the visitor's
//accept method.
lc.push(catchBlock);
enterBlock(catchBlock);
final CatchNode catchNode = (CatchNode)catchBlocks.get(i).getStatements().get(0);
final IdentNode exception = catchNode.getException();
final Expression exceptionCondition = catchNode.getExceptionCondition();
final Block catchBody = catchNode.getBody();
new Store<IdentNode>(exception) {
@Override
protected void storeNonDiscard() {
return;
}
@Override
protected void evaluate() {
if (catchNode.isSyntheticRethrow()) {
method.load(symbol);
return;
}
/*
* If caught object is an instance of ECMAException, then
* bind obj.thrown to the script catch var. Or else bind the
* caught object itself to the script catch var.
*/
final Label notEcmaException = new Label("no_ecma_exception");
method.load(symbol).dup()._instanceof(ECMAException.class).ifeq(notEcmaException);
method.checkcast(ECMAException.class); //TODO is this necessary?
method.getField(ECMAException.THROWN);
method.label(notEcmaException);
}
}.store();
final Label next;
if (exceptionCondition != null) {
next = new Label("next");
load(exceptionCondition, Type.BOOLEAN).ifeq(next);
} else {
next = null;
}
catchBody.accept(this);
if (i + 1 != catchBlocks.size() && !catchBody.hasTerminalFlags()) {
method._goto(skip);
}
if (next != null) {
if (i + 1 == catchBlocks.size()) {
// no next catch block - rethrow if condition failed
method._goto(skip);
method.label(next);
method.load(symbol).athrow();
} else {
method.label(next);
}
}
leaveBlock(catchBlock);
lc.pop(catchBlock);
}
method.label(skip);
method._try(entry, exit, recovery, Throwable.class);
// Finally body is always inlined elsewhere so it doesn't need to be emitted
return false;
}
Example 13
| Source File: CodeGenerator.java From openjdk-8 with GNU General Public License v2.0 | 4 votes |
|
@Override
public boolean enterTryNode(final TryNode tryNode) {
lineNumber(tryNode);
final Block body = tryNode.getBody();
final List<Block> catchBlocks = tryNode.getCatchBlocks();
final Symbol symbol = tryNode.getException();
final Label entry = new Label("try");
final Label recovery = new Label("catch");
final Label exit = tryNode.getExit();
final Label skip = new Label("skip");
method.label(entry);
body.accept(this);
if (!body.hasTerminalFlags()) {
method._goto(skip);
}
method.label(exit);
method._catch(recovery);
method.store(symbol);
for (int i = 0; i < catchBlocks.size(); i++) {
final Block catchBlock = catchBlocks.get(i);
//TODO this is very ugly - try not to call enter/leave methods directly
//better to use the implicit lexical context scoping given by the visitor's
//accept method.
lc.push(catchBlock);
enterBlock(catchBlock);
final CatchNode catchNode = (CatchNode)catchBlocks.get(i).getStatements().get(0);
final IdentNode exception = catchNode.getException();
final Expression exceptionCondition = catchNode.getExceptionCondition();
final Block catchBody = catchNode.getBody();
new Store<IdentNode>(exception) {
@Override
protected void storeNonDiscard() {
return;
}
@Override
protected void evaluate() {
if (catchNode.isSyntheticRethrow()) {
method.load(symbol);
return;
}
/*
* If caught object is an instance of ECMAException, then
* bind obj.thrown to the script catch var. Or else bind the
* caught object itself to the script catch var.
*/
final Label notEcmaException = new Label("no_ecma_exception");
method.load(symbol).dup()._instanceof(ECMAException.class).ifeq(notEcmaException);
method.checkcast(ECMAException.class); //TODO is this necessary?
method.getField(ECMAException.THROWN);
method.label(notEcmaException);
}
}.store();
final Label next;
if (exceptionCondition != null) {
next = new Label("next");
load(exceptionCondition, Type.BOOLEAN).ifeq(next);
} else {
next = null;
}
catchBody.accept(this);
if (i + 1 != catchBlocks.size() && !catchBody.hasTerminalFlags()) {
method._goto(skip);
}
if (next != null) {
if (i + 1 == catchBlocks.size()) {
// no next catch block - rethrow if condition failed
method._goto(skip);
method.label(next);
method.load(symbol).athrow();
} else {
method.label(next);
}
}
leaveBlock(catchBlock);
lc.pop(catchBlock);
}
method.label(skip);
method._try(entry, exit, recovery, Throwable.class);
// Finally body is always inlined elsewhere so it doesn't need to be emitted
return false;
}
Example 14
| Source File: CodeGenerator.java From nashorn with GNU General Public License v2.0 | 4 votes |
|
@Override
public boolean enterTryNode(final TryNode tryNode) {
lineNumber(tryNode);
final Block body = tryNode.getBody();
final List<Block> catchBlocks = tryNode.getCatchBlocks();
final Symbol symbol = tryNode.getException();
final Label entry = new Label("try");
final Label recovery = new Label("catch");
final Label exit = tryNode.getExit();
final Label skip = new Label("skip");
method.label(entry);
body.accept(this);
if (!body.hasTerminalFlags()) {
method._goto(skip);
}
method.label(exit);
method._catch(recovery);
method.store(symbol);
for (int i = 0; i < catchBlocks.size(); i++) {
final Block catchBlock = catchBlocks.get(i);
//TODO this is very ugly - try not to call enter/leave methods directly
//better to use the implicit lexical context scoping given by the visitor's
//accept method.
lc.push(catchBlock);
enterBlock(catchBlock);
final CatchNode catchNode = (CatchNode)catchBlocks.get(i).getStatements().get(0);
final IdentNode exception = catchNode.getException();
final Expression exceptionCondition = catchNode.getExceptionCondition();
final Block catchBody = catchNode.getBody();
new Store<IdentNode>(exception) {
@Override
protected void storeNonDiscard() {
return;
}
@Override
protected void evaluate() {
if (catchNode.isSyntheticRethrow()) {
method.load(symbol);
return;
}
/*
* If caught object is an instance of ECMAException, then
* bind obj.thrown to the script catch var. Or else bind the
* caught object itself to the script catch var.
*/
final Label notEcmaException = new Label("no_ecma_exception");
method.load(symbol).dup()._instanceof(ECMAException.class).ifeq(notEcmaException);
method.checkcast(ECMAException.class); //TODO is this necessary?
method.getField(ECMAException.THROWN);
method.label(notEcmaException);
}
}.store();
final Label next;
if (exceptionCondition != null) {
next = new Label("next");
load(exceptionCondition).convert(Type.BOOLEAN).ifeq(next);
} else {
next = null;
}
catchBody.accept(this);
if (i + 1 != catchBlocks.size() && !catchBody.hasTerminalFlags()) {
method._goto(skip);
}
if (next != null) {
if (i + 1 == catchBlocks.size()) {
// no next catch block - rethrow if condition failed
method._goto(skip);
method.label(next);
method.load(symbol).athrow();
} else {
method.label(next);
}
}
leaveBlock(catchBlock);
lc.pop(catchBlock);
}
method.label(skip);
method._try(entry, exit, recovery, Throwable.class);
// Finally body is always inlined elsewhere so it doesn't need to be emitted
return false;
}
