use of com.sun.tools.javac.tree.JCTree.JCBlock in project ceylon-compiler by ceylon.
the class StatementTransformer method transform.
public JCStatement transform(Tree.TryCatchStatement t) {
Tree.TryClause tryClause = t.getTryClause();
at(tryClause);
JCBlock tryBlock = transform(tryClause.getBlock());
Tree.ResourceList resList = tryClause.getResourceList();
if (resList != null) {
ArrayList<Tree.Resource> resources = new ArrayList<Tree.Resource>(resList.getResources());
Collections.reverse(resources);
for (Tree.Resource res : resources) {
List<JCStatement> stats = List.nil();
Tree.Expression resExpr;
String resVarName;
if (res.getExpression() != null) {
resExpr = res.getExpression();
resVarName = naming.newTemp("try");
} else if (res.getVariable() != null) {
Tree.Variable var = res.getVariable();
resExpr = var.getSpecifierExpression().getExpression();
resVarName = var.getIdentifier().getText();
} else {
throw new BugException(res, "missing resource expression");
}
boolean isDestroyable = typeFact().getDestroyableType().isSupertypeOf(resExpr.getTypeModel());
Type resVarType = resExpr.getTypeModel();
Type resVarExpectedType = isDestroyable ? typeFact().getDestroyableType() : typeFact().getObtainableType();
// CloseableType $var = resource-expression
JCExpression expr = expressionGen().transformExpression(resExpr);
JCExpression javaType = makeJavaType(resVarType);
JCVariableDecl var = makeVar(FINAL, resVarName, javaType, expr);
stats = stats.append(var);
if (!isDestroyable) {
JCExpression resVar0 = expressionGen().applyErasureAndBoxing(makeUnquotedIdent(resVarName), resVarType, true, BoxingStrategy.BOXED, resVarExpectedType);
JCMethodInvocation openCall = make().Apply(null, makeQualIdent(resVar0, "obtain"), List.<JCExpression>nil());
stats = stats.append(make().Exec(openCall));
}
// Exception $tpmex = null;
String innerExTmpVarName = naming.newTemp("ex");
JCExpression innerExType = makeJavaType(typeFact().getThrowableType(), JT_CATCH);
JCVariableDecl innerExTmpVar = makeVar(innerExTmpVarName, innerExType, makeNull());
stats = stats.append(innerExTmpVar);
// $tmpex = ex;
List<JCStatement> innerCatchStats = List.nil();
Name innerCatchVarName = naming.tempName("ex");
JCAssign exTmpAssign = make().Assign(makeUnquotedIdent(innerExTmpVarName), make().Ident(innerCatchVarName));
innerCatchStats = innerCatchStats.append(make().Exec(exTmpAssign));
// throw ex;
JCThrow innerCatchThrow = make().Throw(make().Ident(innerCatchVarName));
innerCatchStats = innerCatchStats.append(innerCatchThrow);
JCBlock innerCatchBlock = make().Block(0, innerCatchStats);
// $var.close() /// ((Closeable)$var).close()
JCExpression exarg = makeUnquotedIdent(innerExTmpVarName);
JCExpression resVar1 = expressionGen().applyErasureAndBoxing(makeUnquotedIdent(resVarName), resVarType, true, BoxingStrategy.BOXED, resVarExpectedType);
JCMethodInvocation closeCall = make().Apply(null, makeQualIdent(resVar1, isDestroyable ? "destroy" : "release"), List.<JCExpression>of(exarg));
JCBlock closeTryBlock = make().Block(0, List.<JCStatement>of(make().Exec(closeCall)));
// try { $var.close() } catch (Exception closex) { $tmpex.addSuppressed(closex); }
Name closeCatchVarName = naming.tempName("closex");
JCExpression closeCatchExType = makeJavaType(typeFact().getThrowableType(), JT_CATCH);
JCVariableDecl closeCatchVar = make().VarDef(make().Modifiers(Flags.FINAL), closeCatchVarName, closeCatchExType, null);
JCExpression addarg = make().Ident(closeCatchVarName);
JCMethodInvocation addSuppressedCall = make().Apply(null, makeQualIdent(makeUnquotedIdent(innerExTmpVarName), "addSuppressed"), List.<JCExpression>of(addarg));
JCCatch closeCatch = make().Catch(closeCatchVar, make().Block(0, List.<JCStatement>of(make().Exec(addSuppressedCall))));
JCTry closeTry = at(res).Try(closeTryBlock, List.<JCCatch>of(closeCatch), null);
// $var.close() /// ((Closeable)$var).close()
JCExpression exarg2 = makeUnquotedIdent(innerExTmpVarName);
JCExpression resVar2 = expressionGen().applyErasureAndBoxing(makeUnquotedIdent(resVarName), resVarType, true, BoxingStrategy.BOXED, resVarExpectedType);
JCMethodInvocation closeCall2 = make().Apply(null, makeQualIdent(resVar2, isDestroyable ? "destroy" : "release"), List.<JCExpression>of(exarg2));
// if ($tmpex != null) { ... } else { ... }
JCBinary closeCatchCond = make().Binary(JCTree.NE, makeUnquotedIdent(innerExTmpVarName), makeNull());
JCIf closeCatchIf = make().If(closeCatchCond, closeTry, make().Exec(closeCall2));
// try { .... } catch (Exception ex) { $tmpex=ex; throw ex; }
// finally { try { $var.close() } catch (Exception closex) { } }
JCExpression innerCatchExType = makeJavaType(typeFact().getThrowableType(), JT_CATCH);
JCVariableDecl innerCatchVar = make().VarDef(make().Modifiers(Flags.FINAL), innerCatchVarName, innerCatchExType, null);
JCCatch innerCatch = make().Catch(innerCatchVar, innerCatchBlock);
JCBlock innerFinallyBlock = make().Block(0, List.<JCStatement>of(closeCatchIf));
JCTry innerTry = at(res).Try(tryBlock, List.<JCCatch>of(innerCatch), innerFinallyBlock);
stats = stats.append(innerTry);
tryBlock = at(res).Block(0, stats);
}
}
final List<JCCatch> catches;
if (usePolymorphicCatches(t.getCatchClauses())) {
catches = transformCatchesPolymorphic(t.getCatchClauses());
} else {
catches = transformCatchesIfElseIf(t.getCatchClauses());
}
final JCBlock finallyBlock;
Tree.FinallyClause finallyClause = t.getFinallyClause();
if (finallyClause != null) {
at(finallyClause);
finallyBlock = transform(finallyClause.getBlock());
} else {
finallyBlock = null;
}
if (!catches.isEmpty() || finallyBlock != null) {
return at(t).Try(tryBlock, catches, finallyBlock);
} else {
return tryBlock;
}
}
use of com.sun.tools.javac.tree.JCTree.JCBlock in project ceylon-compiler by ceylon.
the class StatementTransformer method makeThenBlock.
private JCBlock makeThenBlock(Cond cond, Node thenPart, Substitution subs, String tmpVar, Tree.Term outerExpression, Type expectedType) {
List<JCStatement> blockStmts;
if (thenPart instanceof Tree.Block)
blockStmts = statementGen().transformBlock((Tree.Block) thenPart);
else if (thenPart instanceof Tree.Expression) {
blockStmts = evaluateAndAssign(tmpVar, (Tree.Expression) thenPart, outerExpression, expectedType);
} else if (thenPart == null) {
blockStmts = List.<JCStatement>nil();
} else {
blockStmts = List.<JCStatement>of(make().Exec(makeErroneous(thenPart, "Only block or expression allowed")));
}
if (subs != null) {
// The variable holding the result for the code inside the code block
blockStmts = blockStmts.prepend(at(cond.getCondition()).VarDef(make().Modifiers(FINAL), names().fromString(subs.substituted), cond.getVarTrans().makeTypeExpr(), cond.getVarTrans().makeResultExpr()));
}
JCBlock thenBlock = at(cond.getCondition()).Block(0, blockStmts);
return thenBlock;
}
use of com.sun.tools.javac.tree.JCTree.JCBlock in project ceylon-compiler by ceylon.
the class StatementTransformer method transformCaseMatch.
private JCStatement transformCaseMatch(Naming.SyntheticName selectorAlias, Tree.SwitchClause switchClause, Tree.CaseClause caseClause, String tmpVar, Tree.Term outerExpression, Type expectedType, Tree.MatchCase matchCase, JCStatement last, Type switchType, boolean primitiveSelector) {
at(matchCase);
JCExpression tests = null;
java.util.List<Tree.Expression> expressions = matchCase.getExpressionList().getExpressions();
for (Tree.Expression expr : expressions) {
Tree.Term term = ExpressionTransformer.eliminateParens(expr.getTerm());
boolean unboxedEquality = primitiveSelector || isCeylonBasicType(typeFact().getDefiniteType(switchType));
JCExpression transformedExpression = expressionGen().transformExpression(term, unboxedEquality ? BoxingStrategy.UNBOXED : BoxingStrategy.BOXED, term.getTypeModel());
JCExpression test;
if (term instanceof Tree.Literal || term instanceof Tree.NegativeOp) {
if (unboxedEquality) {
if (term instanceof Tree.StringLiteral) {
test = make().Apply(null, makeSelect(unboxType(selectorAlias.makeIdent(), term.getTypeModel()), "equals"), List.<JCExpression>of(transformedExpression));
} else {
test = make().Binary(JCTree.EQ, primitiveSelector ? selectorAlias.makeIdent() : unboxType(selectorAlias.makeIdent(), term.getTypeModel()), transformedExpression);
}
} else {
test = make().Apply(null, makeSelect(selectorAlias.makeIdent(), "equals"), List.<JCExpression>of(transformedExpression));
}
if (isOptional(switchType)) {
test = make().Binary(JCTree.AND, make().Binary(JCTree.NE, selectorAlias.makeIdent(), makeNull()), test);
}
} else {
JCExpression selectorExpr;
if (!primitiveSelector && isCeylonBasicType(typeFact().getDefiniteType(switchType))) {
selectorExpr = unboxType(selectorAlias.makeIdent(), term.getTypeModel());
} else {
selectorExpr = selectorAlias.makeIdent();
}
test = make().Binary(JCTree.EQ, selectorExpr, transformedExpression);
}
if (tests == null)
tests = test;
else if (isNull(term.getTypeModel())) {
// ensure we do any null check as the first operation in the ||-ed expression
tests = make().Binary(JCTree.OR, test, tests);
} else {
tests = make().Binary(JCTree.OR, tests, test);
}
}
Substitution prevSubst = null;
if (switchClause.getSwitched().getVariable() != null) {
// Prepare for variable substitution in the following code block
prevSubst = naming.addVariableSubst(switchClause.getSwitched().getVariable().getDeclarationModel(), selectorAlias.toString());
}
JCBlock block = transformCaseClauseBlock(caseClause, tmpVar, outerExpression, expectedType);
if (prevSubst != null) {
// Deactivate the above variable substitution
prevSubst.close();
}
return at(caseClause).If(tests, block, last);
}
use of com.sun.tools.javac.tree.JCTree.JCBlock in project lombok by rzwitserloot.
the class JavacJavaUtilMapSingularizer method generateSingularMethod.
private void generateSingularMethod(JavacTreeMaker maker, JCExpression returnType, JCStatement returnStatement, SingularData data, JavacNode builderType, JCTree source, boolean fluent) {
List<JCTypeParameter> typeParams = List.nil();
List<JCExpression> thrown = List.nil();
JCModifiers mods = maker.Modifiers(Flags.PUBLIC);
ListBuffer<JCStatement> statements = new ListBuffer<JCStatement>();
statements.append(createConstructBuilderVarIfNeeded(maker, data, builderType, true, source));
Name keyName = builderType.toName(data.getSingularName().toString() + "Key");
Name valueName = builderType.toName(data.getSingularName().toString() + "Value");
/* this.pluralname$key.add(singularnameKey); */
{
JCExpression thisDotKeyFieldDotAdd = chainDots(builderType, "this", data.getPluralName() + "$key", "add");
JCExpression invokeAdd = maker.Apply(List.<JCExpression>nil(), thisDotKeyFieldDotAdd, List.<JCExpression>of(maker.Ident(keyName)));
statements.append(maker.Exec(invokeAdd));
}
/* this.pluralname$value.add(singularnameValue); */
{
JCExpression thisDotValueFieldDotAdd = chainDots(builderType, "this", data.getPluralName() + "$value", "add");
JCExpression invokeAdd = maker.Apply(List.<JCExpression>nil(), thisDotValueFieldDotAdd, List.<JCExpression>of(maker.Ident(valueName)));
statements.append(maker.Exec(invokeAdd));
}
if (returnStatement != null)
statements.append(returnStatement);
JCBlock body = maker.Block(0, statements.toList());
long paramFlags = JavacHandlerUtil.addFinalIfNeeded(Flags.PARAMETER, builderType.getContext());
Name name = data.getSingularName();
if (!fluent)
name = builderType.toName(HandlerUtil.buildAccessorName("put", name.toString()));
JCExpression paramTypeKey = cloneParamType(0, maker, data.getTypeArgs(), builderType, source);
JCExpression paramTypeValue = cloneParamType(1, maker, data.getTypeArgs(), builderType, source);
JCVariableDecl paramKey = maker.VarDef(maker.Modifiers(paramFlags), keyName, paramTypeKey, null);
JCVariableDecl paramValue = maker.VarDef(maker.Modifiers(paramFlags), valueName, paramTypeValue, null);
JCMethodDecl method = maker.MethodDef(mods, name, returnType, typeParams, List.of(paramKey, paramValue), thrown, body, null);
injectMethod(builderType, method);
}
use of com.sun.tools.javac.tree.JCTree.JCBlock in project lombok by rzwitserloot.
the class PrettyPrinter method printLambda0.
private void printLambda0(JCTree tree) {
List<JCVariableDecl> params = readObject(tree, "params", List.<JCVariableDecl>nil());
boolean explicit = true;
int paramLength = params.size();
try {
explicit = readObject(tree, "paramKind", new Object()).toString().equals("EXPLICIT");
} catch (Exception e) {
}
boolean useParens = paramLength != 1 || explicit;
if (useParens)
print("(");
if (explicit) {
boolean first = true;
for (JCVariableDecl vd : params) {
if (!first)
print(", ");
first = false;
printVarDefInline(vd);
}
} else {
String sep = "";
for (JCVariableDecl param : params) {
print(sep);
print(param.name);
sep = ", ";
}
}
if (useParens)
print(")");
print(" -> ");
JCTree body = readObject(tree, "body", (JCTree) null);
if (body instanceof JCBlock) {
println("{");
indent++;
print(((JCBlock) body).stats, "");
indent--;
aPrint("}");
} else {
print(body);
}
}
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