Java Code Examples for org.eclipse.xtext.xbase.compiler.output.ITreeAppendable#getName()

protected void doReassignThisInClosure(final ITreeAppendable b, JvmType prevType) {
	final String proposedName = prevType.getSimpleName()+".this";
	if (!b.hasObject(proposedName)) {
		b.declareSyntheticVariable(prevType, proposedName);
		if (b.hasObject("super")) {
			Object superElement = b.getObject("super");
			if (superElement instanceof JvmType) {
				// Don't reassign the super of the enclosing type if it has already been reassigned
				String superVariable = b.getName(superElement);
				if ("super".equals(superVariable)) {
					b.declareSyntheticVariable(superElement, prevType.getSimpleName()+".super");
				}
			}
		}
	}
}
 

protected String getSwitchLocalVariableName(XSwitchExpression expr, ITreeAppendable b) {
	JvmFormalParameter declaredParam = expr.getDeclaredParam();
	if (declaredParam != null) {
		if (b.hasName(declaredParam)) {
			return b.getName(declaredParam);
		}
		return null;
	}
	XExpression switchExpression = expr.getSwitch();
	if (b.hasName(switchExpression)) {
		return b.getName(switchExpression);
	} 
	if (switchExpression instanceof XFeatureCall) {
		XFeatureCall featureCall = (XFeatureCall) switchExpression;
		JvmIdentifiableElement feature = featureCall.getFeature();
		if (b.hasName(feature)) {
			return b.getName(feature);
		}
	}
	return null;
}
 

/**
 * Symmetric to {@link XtendGenerator#reassignThisType(ITreeAppendable, JvmDeclaredType)}
 */
@Override
protected void doReassignThisInClosure(ITreeAppendable b, JvmType prevType) {
	if (prevType instanceof JvmDeclaredType && ((JvmDeclaredType) prevType).isLocal()) {
		if (b.hasName(Pair.of("this", prevType))) {
			b.declareVariable(prevType, b.getName(Pair.of("this", prevType)));
		} else {
			b.declareSyntheticVariable(prevType, "");
		}
		if (b.hasObject("super")) {
			Object superElement = b.getObject("super");
			if (superElement instanceof JvmType) {
				// Don't reassign the super of the enclosing type if it has already been reassigned
				String superVariable = b.getName(superElement);
				if ("super".equals(superVariable)) {
					b.declareSyntheticVariable(superElement, prevType.getSimpleName()+".super");
				}
			}
		}
	} else {
		super.doReassignThisInClosure(b, prevType);
	}
}
 

/**
 * @since 2.18
 */
protected void appendFinallyWithResources(XTryCatchFinallyExpression expr, ITreeAppendable b) {
	final String throwablesStore = b.getName(Tuples.pair(expr, "_caughtThrowables"));
	List<XVariableDeclaration> resources = expr.getResources();
	if (!resources.isEmpty()) {
		for (int i = resources.size() - 1; i >= 0; i--) {
			b.openPseudoScope();
			XVariableDeclaration res = resources.get(i);
			String resName = getVarName(res, b);
			b.newLine().append("if (" + resName + " != null) {");
			b.increaseIndentation();
			b.newLine().append("try {");
			b.increaseIndentation();
			b.newLine().append(resName + ".close();");
			// close inner try
			closeBlock(b);
			String throwable = b.declareSyntheticVariable(Tuples.pair(res, "_caughtThrowable"), "_t");
			b.append(" catch (").append(Throwable.class).append(" " + throwable + ") {");
			b.increaseIndentation();
			b.newLine().append(throwablesStore);
			b.append(".add(" + throwable + ");");
			// close inner catch
			closeBlock(b);
			// close if != null check
			closeBlock(b);
			b.closeScope();
		}
		b.newLine().append("if(!");
		b.append(throwablesStore);
		b.append(".isEmpty()) ");
		appendSneakyThrow(expr, b, throwablesStore + ".get(0)");
	}
}
 

@Override
/* @Nullable */
protected String getReferenceName(XExpression expr, ITreeAppendable b) {
	if (expr instanceof XSwitchExpression) {
		Object key = getSwitchExpressionKey((XSwitchExpression) expr);
		if (b.hasName(key))
			return b.getName(key);
	}
	return super.getReferenceName(expr, b);
}
 

/**
 * @return the variable name under which the result of the expression is stored. Returns <code>null</code> if the
 *          expression hasn't been assigned to a local variable before.
 */
/* @Nullable */
protected String getReferenceName(XExpression expr, ITreeAppendable b) {
	if (b.hasName(expr))
		return b.getName(expr);
	if (expr instanceof XFeatureCall) {
		XFeatureCall featureCall = (XFeatureCall) expr;
		if (b.hasName(featureCall.getFeature()))
			return b.getName(featureCall.getFeature());
	}
	return null;
}
 

protected void appendFeatureCall(XAbstractFeatureCall call, ITreeAppendable b) {
	if (expressionHelper.isInlined(call)) {
		appendInlineFeatureCall(call, b);
		return;
	}
	JvmIdentifiableElement feature = call.getFeature();
	String name = null;
	if (feature instanceof JvmConstructor) {
		JvmDeclaredType constructorContainer = ((JvmConstructor) feature).getDeclaringType();
		JvmIdentifiableElement logicalContainer = contextProvider.getNearestLogicalContainer(call);
		JvmDeclaredType contextType = ((JvmMember) logicalContainer).getDeclaringType();
		if (contextType == constructorContainer)
			name = "this";
		else
			name = "super";
	} else if(feature != null) {
		if (b.hasName(feature)) {
			name = b.getName(feature);
		} else {
			name = featureNameProvider.getSimpleName(feature);
		}
	}
	if(name == null)
		name = "/* name is null */";
	b.trace(call, XbasePackage.Literals.XABSTRACT_FEATURE_CALL__FEATURE, 0).append(name);
	if (feature instanceof JvmExecutable) {
		b.append("(");
		List<XExpression> arguments = getActualArguments(call);
		if (!arguments.isEmpty()) {
			XExpression receiver = null;
			if (call instanceof XMemberFeatureCall) {
				receiver = ((XMemberFeatureCall) call).getMemberCallTarget();
			} else if (call instanceof XAssignment) {
				receiver = ((XAssignment) call).getAssignable();
			}
			boolean shouldBreakFirstArgument = receiver == null || arguments.get(0) != receiver;
			appendArguments(arguments, b, shouldBreakFirstArgument);
		}
		b.append(")");
	}
}
 

protected void appendCatchAndFinally(XTryCatchFinallyExpression expr, ITreeAppendable b, boolean isReferenced) {
	final EList<XCatchClause> catchClauses = expr.getCatchClauses();
	final XExpression finallyExp = expr.getFinallyExpression();
	boolean isTryWithResources = !expr.getResources().isEmpty();
	// If Java 7 or better: use Java's try-with-resources
	boolean nativeTryWithResources = isAtLeast(b, JAVA7);
	final String throwablesStore = b.getName(Tuples.pair(expr, "_caughtThrowables"));

	// Catch
	if (!catchClauses.isEmpty()) {
		String variable = b.declareSyntheticVariable(Tuples.pair(expr, "_caughtThrowable"), "_t");
		b.append(" catch (final Throwable ").append(variable).append(") ");
		b.append("{").increaseIndentation().newLine();
		Iterator<XCatchClause> iterator = catchClauses.iterator();
		while (iterator.hasNext()) {
			XCatchClause catchClause = iterator.next();
			ITreeAppendable catchClauseAppendable = b.trace(catchClause);
			appendCatchClause(catchClause, isReferenced, variable, catchClauseAppendable);
			if (iterator.hasNext()) {
				b.append(" else ");
			}
		}
		b.append(" else {");
		b.increaseIndentation().newLine();
		if (isTryWithResources && !nativeTryWithResources) {
			b.append(throwablesStore + ".add(" + variable + ");").newLine();
		}
		appendSneakyThrow(expr, b, variable);
		closeBlock(b);
		closeBlock(b);
	}

	// Finally
	if (finallyExp != null || (!nativeTryWithResources && isTryWithResources)) {
		b.append(" finally {").increaseIndentation();
		if (finallyExp != null)
			internalToJavaStatement(finallyExp, b, false);
		if (!nativeTryWithResources && isTryWithResources)
			appendFinallyWithResources(expr, b);
		b.decreaseIndentation().newLine().append("}");
	}
}
 

protected String getVarName(Object ex, ITreeAppendable appendable) {
	String name = appendable.getName(ex);
	return name;
}
 

private String reassignSuperType(final ITreeAppendable b, final JvmDeclaredType declaredType, final GeneratorConfig config) {
  String _xblockexpression = null;
  {
    JvmTypeReference _extendedClass = declaredType.getExtendedClass();
    JvmType _type = null;
    if (_extendedClass!=null) {
      _type=_extendedClass.getType();
    }
    final JvmType superType = _type;
    boolean _hasObject = b.hasObject("super");
    if (_hasObject) {
      final Object element = b.getObject("this");
      if ((element instanceof JvmDeclaredType)) {
        final Object superElement = b.getObject("super");
        final String superVariable = b.getName(superElement);
        boolean _equals = "super".equals(superVariable);
        if (_equals) {
          String _simpleName = ((JvmDeclaredType)element).getSimpleName();
          final String proposedName = (_simpleName + ".super");
          b.declareVariable(superElement, proposedName);
        }
      }
    }
    boolean _isAtLeast = config.getJavaSourceVersion().isAtLeast(JavaVersion.JAVA8);
    if (_isAtLeast) {
      Iterable<JvmTypeReference> _extendedInterfaces = declaredType.getExtendedInterfaces();
      for (final JvmTypeReference interfaceRef : _extendedInterfaces) {
        {
          final JvmType interfaze = interfaceRef.getType();
          String _simpleName_1 = interfaze.getSimpleName();
          final String simpleVarName = (_simpleName_1 + ".super");
          boolean _hasObject_1 = b.hasObject(simpleVarName);
          if (_hasObject_1) {
            final Object element_1 = b.getObject(simpleVarName);
            boolean _notEquals = (!Objects.equal(element_1, interfaceRef));
            if (_notEquals) {
              String _qualifiedName = interfaze.getQualifiedName();
              final String qualifiedVarName = (_qualifiedName + ".super");
              b.declareVariable(interfaze, qualifiedVarName);
            }
          } else {
            b.declareVariable(interfaze, simpleVarName);
          }
        }
      }
    }
    String _xifexpression = null;
    if ((superType != null)) {
      _xifexpression = b.declareVariable(superType, "super");
    }
    _xblockexpression = _xifexpression;
  }
  return _xblockexpression;
}