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Initial implementation of introduce refactoring for substrings (PY-3654)

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This commit is contained in:
Andrey Vlasovskikh
2012-12-19 20:07:38 +04:00
parent c9e423dcac
commit 9d80d6f98c
22 changed files with 191 additions and 42 deletions
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python/psi-api/src/com/jetbrains/python/psi/impl/PyPsiUtils.java
+33 -5
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@@ -15,6 +15,7 @@ import com.intellij.psi.util.PsiTreeUtil;
import com.intellij.util.ArrayUtil;
import com.intellij.util.containers.ContainerUtil;
import com.jetbrains.python.PyTokenTypes;
import com.jetbrains.python.PythonStringUtil;
import com.jetbrains.python.psi.*;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
@@ -71,15 +72,42 @@ public class PyPsiUtils {
@NotNull final PsiElement newExpression) {
final Pair<PsiElement, TextRange> data = oldExpression.getUserData(SELECTION_BREAKS_AST_NODE);
if (data != null) {
final PsiElement parent = data.first;
final PsiElement element = data.first;
final TextRange textRange = data.second;
final String parentText = parent.getText();
final String parentText = element.getText();
final String prefix = parentText.substring(0, textRange.getStartOffset());
final String suffix = parentText.substring(textRange.getEndOffset(), parent.getTextLength());
final String suffix = parentText.substring(textRange.getEndOffset(), element.getTextLength());
final PyElementGenerator generator = PyElementGenerator.getInstance(oldExpression.getProject());
final LanguageLevel languageLevel = LanguageLevel.forElement(oldExpression);
final PsiElement expression = generator.createFromText(languageLevel, parent.getClass(), prefix + newExpression.getText() + suffix);
return parent.replace(expression);
if (element instanceof PyStringLiteralExpression) {
final Pair<String, String> quotes = PythonStringUtil.getQuotes(parentText);
final PsiElement parent = element.getParent();
final boolean parensNeeded = parent instanceof PyExpression && !(parent instanceof PyParenthesizedExpression);
if (quotes != null) {
final String leftQuote = quotes.getFirst();
final String rightQuote = quotes.getSecond();
final StringBuilder builder = new StringBuilder();
if (parensNeeded) {
builder.append("(");
}
if (!leftQuote.endsWith(prefix)) {
builder.append(prefix + rightQuote + " + ");
}
final int pos = builder.toString().length();
builder.append(newExpression.getText());
if (!rightQuote.startsWith(suffix)) {
builder.append(" + " + leftQuote + suffix);
}
if (parensNeeded) {
builder.append(")");
}
final PsiElement expression = generator.createExpressionFromText(languageLevel, builder.toString());
final PsiElement newElement = element.replace(expression);
return newElement.findElementAt(pos);
}
}
final PsiElement expression = generator.createFromText(languageLevel, element.getClass(), prefix + newExpression.getText() + suffix);
return element.replace(expression);
}
else {
return oldExpression.replace(newExpression);