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ParameterNullityInference: strip parentheses & casts

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GitOrigin-RevId: 9ef33b55c4fc088c214d279f198b48695a4a2fb2
This commit is contained in:
Tagir Valeev
2020-01-29 12:38:53 +07:00
committed by intellij-monorepo-bot
parent fabef32ef5
commit 40e73aab84
1 changed files with 5 additions and 4 deletions
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9
java/java-analysis-impl/src/com/intellij/codeInspection/dataFlow/inference/ParameterNullityInference.kt
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@@ -162,12 +162,13 @@ private fun dereference(tree: LighterAST,
canBeNulls: HashSet<String>,
notNulls: HashSet<String>,
queue: ArrayDeque<LighterASTNode>) {
if (expression == null) return
if (expression.tokenType == REFERENCE_EXPRESSION && JavaLightTreeUtil.findExpressionChild(tree, expression) == null) {
JavaLightTreeUtil.getNameIdentifierText(tree, expression)?.takeIf(canBeNulls::remove)?.let(notNulls::add)
val stripped = JavaLightTreeUtil.skipParenthesesDown(tree, expression)
if (stripped == null) return
if (stripped.tokenType == REFERENCE_EXPRESSION && JavaLightTreeUtil.findExpressionChild(tree, stripped) == null) {
JavaLightTreeUtil.getNameIdentifierText(tree, stripped)?.takeIf(canBeNulls::remove)?.let(notNulls::add)
}
else {
queue.addFirst(expression)
queue.addFirst(stripped)
}
}