Examples with Instruction com.intellij.codeInsight.controlflow.Instruction used on opensource projects

Example 31 with Instruction

use of com.intellij.codeInsight.controlflow.Instruction in project intellij-community by JetBrains.

the class PyControlFlowBuilder method visitPyContinueStatement.

@Override
public void visitPyContinueStatement(final PyContinueStatement node) {
    myBuilder.startNode(node);
    final PyLoopStatement loop = node.getLoopStatement();
    if (loop != null) {
        final Instruction instruction = myBuilder.findInstructionByElement(loop);
        if (instruction != null) {
            myBuilder.addEdge(myBuilder.prevInstruction, instruction);
        } else {
            myBuilder.addPendingEdge(null, null);
        }
    }
    myBuilder.flowAbrupted();
}

Example 32 with Instruction

use of com.intellij.codeInsight.controlflow.Instruction in project intellij-community by JetBrains.

the class ScopeUtil method getReadWriteElements.

@NotNull
public static Collection<PsiElement> getReadWriteElements(@NotNull String name, @NotNull ScopeOwner scopeOwner, boolean isReadAccess, boolean isWriteAccess) {
    ControlFlow flow = ControlFlowCache.getControlFlow(scopeOwner);
    Collection<PsiElement> result = new ArrayList<>();
    for (Instruction instr : flow.getInstructions()) {
        if (instr instanceof ReadWriteInstruction) {
            ReadWriteInstruction rw = (ReadWriteInstruction) instr;
            if (name.equals(rw.getName())) {
                ReadWriteInstruction.ACCESS access = rw.getAccess();
                if ((isReadAccess && access.isReadAccess()) || (isWriteAccess && access.isWriteAccess())) {
                    result.add(rw.getElement());
                }
            }
        }
    }
    return result;
}

Example 33 with Instruction

use of com.intellij.codeInsight.controlflow.Instruction in project intellij-community by JetBrains.

the class PyInlineLocalHandler method invoke.

private static void invoke(@NotNull final Project project, @NotNull final Editor editor, @NotNull final PyTargetExpression local, @Nullable PyReferenceExpression refExpr) {
    if (!CommonRefactoringUtil.checkReadOnlyStatus(project, local))
        return;
    final HighlightManager highlightManager = HighlightManager.getInstance(project);
    final TextAttributes writeAttributes = EditorColorsManager.getInstance().getGlobalScheme().getAttributes(EditorColors.WRITE_SEARCH_RESULT_ATTRIBUTES);
    final String localName = local.getName();
    final ScopeOwner containerBlock = getContext(local);
    LOG.assertTrue(containerBlock != null);
    final Pair<PyStatement, Boolean> defPair = getAssignmentToInline(containerBlock, refExpr, local, project);
    final PyStatement def = defPair.first;
    if (def == null || getValue(def) == null) {
        final String key = defPair.second ? "variable.has.no.dominating.definition" : "variable.has.no.initializer";
        final String message = RefactoringBundle.getCannotRefactorMessage(RefactoringBundle.message(key, localName));
        CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HELP_ID);
        return;
    }
    if (def instanceof PyAssignmentStatement && ((PyAssignmentStatement) def).getTargets().length > 1) {
        highlightManager.addOccurrenceHighlights(editor, new PsiElement[] { def }, writeAttributes, true, null);
        final String message = RefactoringBundle.getCannotRefactorMessage(PyBundle.message("refactoring.inline.local.multiassignment", localName));
        CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HELP_ID);
        return;
    }
    final PsiElement[] refsToInline = PyDefUseUtil.getPostRefs(containerBlock, local, getObject(def));
    if (refsToInline.length == 0) {
        final String message = RefactoringBundle.message("variable.is.never.used", localName);
        CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HELP_ID);
        return;
    }
    final TextAttributes attributes = EditorColorsManager.getInstance().getGlobalScheme().getAttributes(EditorColors.SEARCH_RESULT_ATTRIBUTES);
    if (!ApplicationManager.getApplication().isUnitTestMode()) {
        highlightManager.addOccurrenceHighlights(editor, refsToInline, attributes, true, null);
        final int occurrencesCount = refsToInline.length;
        final String occurrencesString = RefactoringBundle.message("occurrences.string", occurrencesCount);
        final String question = RefactoringBundle.message("inline.local.variable.prompt", localName) + " " + occurrencesString;
        final RefactoringMessageDialog dialog = new RefactoringMessageDialog(REFACTORING_NAME, question, HELP_ID, "OptionPane.questionIcon", true, project);
        if (!dialog.showAndGet()) {
            WindowManager.getInstance().getStatusBar(project).setInfo(RefactoringBundle.message("press.escape.to.remove.the.highlighting"));
            return;
        }
    }
    final PsiFile workingFile = local.getContainingFile();
    for (PsiElement ref : refsToInline) {
        final PsiFile otherFile = ref.getContainingFile();
        if (!otherFile.equals(workingFile)) {
            final String message = RefactoringBundle.message("variable.is.referenced.in.multiple.files", localName);
            CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HELP_ID);
            return;
        }
    }
    for (final PsiElement ref : refsToInline) {
        final List<PsiElement> elems = new ArrayList<>();
        final List<Instruction> latestDefs = PyDefUseUtil.getLatestDefs(containerBlock, local.getName(), ref, false, false);
        for (Instruction i : latestDefs) {
            elems.add(i.getElement());
        }
        final PsiElement[] defs = elems.toArray(new PsiElement[elems.size()]);
        boolean isSameDefinition = true;
        for (PsiElement otherDef : defs) {
            isSameDefinition &= isSameDefinition(def, otherDef);
        }
        if (!isSameDefinition) {
            highlightManager.addOccurrenceHighlights(editor, defs, writeAttributes, true, null);
            highlightManager.addOccurrenceHighlights(editor, new PsiElement[] { ref }, attributes, true, null);
            final String message = RefactoringBundle.getCannotRefactorMessage(RefactoringBundle.message("variable.is.accessed.for.writing.and.used.with.inlined", localName));
            CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HELP_ID);
            WindowManager.getInstance().getStatusBar(project).setInfo(RefactoringBundle.message("press.escape.to.remove.the.highlighting"));
            return;
        }
    }
    CommandProcessor.getInstance().executeCommand(project, () -> ApplicationManager.getApplication().runWriteAction(() -> {
        try {
            final RefactoringEventData afterData = new RefactoringEventData();
            afterData.addElement(local);
            project.getMessageBus().syncPublisher(RefactoringEventListener.REFACTORING_EVENT_TOPIC).refactoringStarted(getRefactoringId(), afterData);
            final PsiElement[] exprs = new PsiElement[refsToInline.length];
            final PyExpression value = prepareValue(def, localName, project);
            final PyExpression withParenthesis = PyElementGenerator.getInstance(project).createExpressionFromText("(" + value.getText() + ")");
            final PsiElement lastChild = def.getLastChild();
            if (lastChild != null && lastChild.getNode().getElementType() == PyTokenTypes.END_OF_LINE_COMMENT) {
                final PsiElement parent = def.getParent();
                if (parent != null)
                    parent.addBefore(lastChild, def);
            }
            for (int i = 0, refsToInlineLength = refsToInline.length; i < refsToInlineLength; i++) {
                final PsiElement element = refsToInline[i];
                if (PyReplaceExpressionUtil.isNeedParenthesis((PyExpression) element, value)) {
                    exprs[i] = element.replace(withParenthesis);
                } else {
                    exprs[i] = element.replace(value);
                }
            }
            final PsiElement next = def.getNextSibling();
            if (next instanceof PsiWhiteSpace) {
                PyPsiUtils.removeElements(next);
            }
            PyPsiUtils.removeElements(def);
            final List<TextRange> ranges = ContainerUtil.mapNotNull(exprs, element -> {
                final PyStatement parentalStatement = PsiTreeUtil.getParentOfType(element, PyStatement.class, false);
                return parentalStatement != null ? parentalStatement.getTextRange() : null;
            });
            PsiDocumentManager.getInstance(project).commitDocument(editor.getDocument());
            CodeStyleManager.getInstance(project).reformatText(workingFile, ranges);
            if (!ApplicationManager.getApplication().isUnitTestMode()) {
                highlightManager.addOccurrenceHighlights(editor, exprs, attributes, true, null);
                WindowManager.getInstance().getStatusBar(project).setInfo(RefactoringBundle.message("press.escape.to.remove.the.highlighting"));
            }
        } finally {
            final RefactoringEventData afterData = new RefactoringEventData();
            afterData.addElement(local);
            project.getMessageBus().syncPublisher(RefactoringEventListener.REFACTORING_EVENT_TOPIC).refactoringDone(getRefactoringId(), afterData);
        }
    }), RefactoringBundle.message("inline.command", localName), null);
}