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[python] PY-87389 [debugpy] Support "value tooltip"

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Merge-request: IJ-MR-191406
Merged-by: Egor Eliseev <Egor.Eliseev@jetbrains.com>

GitOrigin-RevId: f2fa583abddf285ccb92804f55b7286b70a4bdac
This commit is contained in:
Egor Eliseev
2026-02-12 19:07:06 +00:00
committed by intellij-monorepo-bot
parent 6566e2f22f
commit c3d9df11ef
1 changed files with 51 additions and 24 deletions
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python/src/com/jetbrains/python/debugger/PyDebuggerEvaluator.kt
+51 -24
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@@ -12,11 +12,13 @@ import com.intellij.psi.PsiDocumentManager
import com.intellij.psi.PsiReference
import com.intellij.xdebugger.XSourcePosition
import com.intellij.xdebugger.evaluation.XDebuggerEvaluator
import com.intellij.xdebugger.evaluation.XDebuggerEvaluator.XEvaluationCallback
import com.intellij.xdebugger.impl.evaluate.quick.XDebuggerDocumentOffsetEvaluator
import com.intellij.xdebugger.impl.evaluate.quick.common.ValueHintType
import com.jetbrains.python.console.PyConsoleIndentUtil
import com.jetbrains.python.psi.PyCallExpression
import com.jetbrains.python.psi.PyExpression
import org.jetbrains.annotations.ApiStatus
internal class PyDebuggerEvaluator(private val myProject: Project, private val myDebugProcess: PyFrameAccessor) : XDebuggerEvaluator(), XDebuggerDocumentOffsetEvaluator {
override fun evaluate(expression: String, callback: XEvaluationCallback, expressionPosition: XSourcePosition?): Unit =
@@ -51,35 +53,60 @@ internal class PyDebuggerEvaluator(private val myProject: Project, private val m
})
}
override fun getExpressionRangeAtOffset(project: Project?, document: Document?, offset: Int, sideEffectsAllowed: Boolean): TextRange? =
override fun getExpressionRangeAtOffset(project: Project?, document: Document?, offset: Int, sideEffectsAllowed: Boolean): TextRange? =
PyDebugSupportUtils.getExpressionRangeAtOffset(project, document, offset)
override fun formatTextForEvaluation(text: String): String = PyConsoleIndentUtil.normalize(text)
override fun evaluate(document: Document, offset: Int, hintType: ValueHintType, callback: XEvaluationCallback) {
if (!Registry.`is`("python.debugger.show.value.tooltip")) {
callback.errorOccurred("")
return
}
val ref = ReadAction.compute<PsiReference?, RuntimeException?>(ThrowableComputable {
PsiDocumentManager.getInstance(myProject).getPsiFile(document)?.findReferenceAt(offset)
})
if (ref == null) {
callback.errorOccurred("")
return
}
val element = ref.getElement()
when(element) {
is PyExpression -> {
if (element.getParent() is PyCallExpression) {
callback.errorOccurred("")
} else {
doEvaluate(element.getText(), callback, false)
}
}
else -> callback.errorOccurred("")
evaluateWithOffset(myProject, document, offset, hintType, callback) { expression ->
doEvaluate(expression, callback, false)
}
}
}
/**
* Common implementation for evaluating expressions at a given document offset (for value tooltips).
*
* @param project the project
* @param document the document
* @param offset the offset in the document
* @param hintType the hint type
* @param callback the evaluation callback
* @param evaluateExpression the function to evaluate the expression text
*/
@ApiStatus.Internal
fun evaluateWithOffset(
project: Project,
document: Document,
offset: Int,
hintType: ValueHintType,
callback: XEvaluationCallback,
evaluateExpression: (String) -> Unit,
) {
if (!Registry.`is`("python.debugger.show.value.tooltip")) {
callback.errorOccurred("")
return
}
val ref = ReadAction.compute<PsiReference?, RuntimeException?>(ThrowableComputable {
PsiDocumentManager.getInstance(project).getPsiFile(document)?.findReferenceAt(offset)
})
if (ref == null) {
callback.errorOccurred("")
return
}
val element = ref.element
when (element) {
is PyExpression -> {
if (element.parent is PyCallExpression) {
callback.errorOccurred("")
}
else {
evaluateExpression(element.text)
}
}
else -> callback.errorOccurred("")
}
}