[racerd] properly recognize all non-source variables

Reviewed By: jeremydubreil, mbouaziz

Differential Revision: D13505828

fbshipit-source-id: f5a0be17d

infer/src/IR/Pvar.ml

@@ -157,8 +157,7 @@ let is_frontend_tmp pvar =
   (* Check whether the program variable is a temporary one generated by Sawja, javac, or some other
      bytecode/name generation pass. valid java identifiers cannot contain `$` *)
   let is_bytecode_tmp name =
-    (String.contains name '$' && not (String.contains name '_'))
-    || String.is_prefix ~prefix:"CatchVar" name
+    String.contains name '$' || String.is_prefix ~prefix:"CatchVar" name
   in
   (* Check whether the program variable is generated by [mk_tmp] *)
   let is_sil_tmp name = String.is_prefix ~prefix:tmp_prefix name in

infer/tests/codetoanalyze/java/eradicate/issues.exp

@@ -63,13 +63,13 @@ codetoanalyze/java/eradicate/NullMethodCall.java, codetoanalyze.java.eradicate.N
 codetoanalyze/java/eradicate/NullMethodCall.java, codetoanalyze.java.eradicate.NullMethodCall.testMapRemoveBad(java.util.Map,java.util.HashMap,java.util.concurrent.ConcurrentHashMap):void, 4, ERADICATE_NULL_METHOD_CALL, no_bucket, WARNING, [origin,The value of `chm.remove(...)` in the call to `toString()` is nullable and is not locally checked for null. (Origin: call to remove(...) modelled in modelTables.ml at line 266)]
 codetoanalyze/java/eradicate/NullMethodCall.java, codetoanalyze.java.eradicate.NullMethodCall.testSystemGetPropertyReturn():void, 2, ERADICATE_NULL_METHOD_CALL, no_bucket, WARNING, [origin,The value of `s` in the call to `length()` is nullable and is not locally checked for null. (Origin: call to getProperty(...) modelled in modelTables.ml at line 232)]
 codetoanalyze/java/eradicate/NullMethodCall.java, codetoanalyze.java.eradicate.NullMethodCall.testSystemGetenvBad():int, 2, ERADICATE_NULL_METHOD_CALL, no_bucket, WARNING, [origin,The value of `envValue` in the call to `length()` is nullable and is not locally checked for null. (Origin: call to getenv(...) modelled in modelTables.ml at line 237)]
-codetoanalyze/java/eradicate/NullMethodCall.java, codetoanalyze.java.eradicate.NullMethodCall.withConditionalAssignemnt(codetoanalyze.java.eradicate.NullMethodCall$AnotherI,boolean,java.lang.Object,java.lang.Object):void, 2, ERADICATE_NULL_METHOD_CALL, no_bucket, WARNING, [The value of `$T1_11` in the call to `withObjectParameter(...)` is nullable and is not locally checked for null. (Origin: method parameter i)]
-codetoanalyze/java/eradicate/NullMethodCall.java, codetoanalyze.java.eradicate.NullMethodCall.withConjuction(codetoanalyze.java.eradicate.NullMethodCall$AnotherI,boolean,boolean):void, 1, ERADICATE_NULL_METHOD_CALL, no_bucket, WARNING, [The value of `$T1_14` in the call to `withBooleanParameter(...)` is nullable and is not locally checked for null. (Origin: method parameter i)]
+codetoanalyze/java/eradicate/NullMethodCall.java, codetoanalyze.java.eradicate.NullMethodCall.withConditionalAssignemnt(codetoanalyze.java.eradicate.NullMethodCall$AnotherI,boolean,java.lang.Object,java.lang.Object):void, 2, ERADICATE_NULL_METHOD_CALL, no_bucket, WARNING, [The value of `i` in the call to `withObjectParameter(...)` is nullable and is not locally checked for null. (Origin: method parameter i)]
+codetoanalyze/java/eradicate/NullMethodCall.java, codetoanalyze.java.eradicate.NullMethodCall.withConjuction(codetoanalyze.java.eradicate.NullMethodCall$AnotherI,boolean,boolean):void, 1, ERADICATE_NULL_METHOD_CALL, no_bucket, WARNING, [The value of `i` in the call to `withBooleanParameter(...)` is nullable and is not locally checked for null. (Origin: method parameter i)]
 codetoanalyze/java/eradicate/ParameterNotNullable.java, codetoanalyze.java.eradicate.ParameterNotNullable$ConstructorCall.<init>(codetoanalyze.java.eradicate.ParameterNotNullable,int), 1, ERADICATE_PARAMETER_NOT_NULLABLE, no_bucket, WARNING, [origin,`ParameterNotNullable$ConstructorCall(...)` needs a non-null value in parameter 2 but argument `null` can be null. (Origin: null constant at line 95)]
 codetoanalyze/java/eradicate/ParameterNotNullable.java, codetoanalyze.java.eradicate.ParameterNotNullable.callNull():void, 2, ERADICATE_PARAMETER_NOT_NULLABLE, no_bucket, WARNING, [origin,`ParameterNotNullable.test(...)` needs a non-null value in parameter 1 but argument `s` can be null. (Origin: null constant at line 33)]
 codetoanalyze/java/eradicate/ParameterNotNullable.java, codetoanalyze.java.eradicate.ParameterNotNullable.callNullable(java.lang.String):void, 1, ERADICATE_PARAMETER_NOT_NULLABLE, no_bucket, WARNING, [`ParameterNotNullable.test(...)` needs a non-null value in parameter 1 but argument `s` can be null. (Origin: method parameter s)]
-codetoanalyze/java/eradicate/ParameterNotNullable.java, codetoanalyze.java.eradicate.ParameterNotNullable.callWithConditionalAssignment(java.lang.Object,boolean):void, 1, ERADICATE_PARAMETER_NOT_NULLABLE, no_bucket, WARNING, [origin,`ParameterNotNullable.doesNotAcceptNullableFirstParameter(...)` needs a non-null value in parameter 1 but argument `$T0_10` can be null. (Origin: null constant at line 110)]
-codetoanalyze/java/eradicate/ParameterNotNullable.java, codetoanalyze.java.eradicate.ParameterNotNullable.callWithNullableFirstParameter(boolean,boolean):void, 1, ERADICATE_PARAMETER_NOT_NULLABLE, no_bucket, WARNING, [origin,`ParameterNotNullable.doesNotAcceptNullableFirstParameter(...)` needs a non-null value in parameter 1 but argument `$T1_15` can be null. (Origin: null constant at line 106)]
+codetoanalyze/java/eradicate/ParameterNotNullable.java, codetoanalyze.java.eradicate.ParameterNotNullable.callWithConditionalAssignment(java.lang.Object,boolean):void, 1, ERADICATE_PARAMETER_NOT_NULLABLE, no_bucket, WARNING, [origin,`ParameterNotNullable.doesNotAcceptNullableFirstParameter(...)` needs a non-null value in parameter 1 but argument `object` can be null. (Origin: null constant at line 110)]
+codetoanalyze/java/eradicate/ParameterNotNullable.java, codetoanalyze.java.eradicate.ParameterNotNullable.callWithNullableFirstParameter(boolean,boolean):void, 1, ERADICATE_PARAMETER_NOT_NULLABLE, no_bucket, WARNING, [origin,`ParameterNotNullable.doesNotAcceptNullableFirstParameter(...)` needs a non-null value in parameter 1 but argument `formal parameter object` can be null. (Origin: null constant at line 106)]
 codetoanalyze/java/eradicate/ParameterNotNullable.java, codetoanalyze.java.eradicate.ParameterNotNullable.testClassGetResourceArgument(java.lang.Class):java.net.URL, 1, ERADICATE_PARAMETER_NOT_NULLABLE, no_bucket, WARNING, [origin,`Class.getResource(...)` needs a non-null value in parameter 1 but argument `null` can be null. (Origin: null constant at line 75)]
 codetoanalyze/java/eradicate/ParameterNotNullable.java, codetoanalyze.java.eradicate.ParameterNotNullable.testSystemGetPropertyArgument():java.lang.String, 1, ERADICATE_PARAMETER_NOT_NULLABLE, no_bucket, WARNING, [origin,`System.getProperty(...)` needs a non-null value in parameter 1 but argument `null` can be null. (Origin: null constant at line 65)]
 codetoanalyze/java/eradicate/ParameterNotNullable.java, codetoanalyze.java.eradicate.ParameterNotNullable.testSystemGetenvBad():java.lang.String, 1, ERADICATE_PARAMETER_NOT_NULLABLE, no_bucket, WARNING, [origin,`System.getenv(...)` needs a non-null value in parameter 1 but argument `null` can be null. (Origin: null constant at line 71)]

infer/tests/codetoanalyze/java/racerd/NonSourceVar.java

@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2018-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package codetoanalyze.java.checkers;
+
+import javax.annotation.concurrent.ThreadSafe;
+
+// TODO fix FN T38248006
+@ThreadSafe
+public class NonSourceVar {
+  private long field;
+
+  public void FN_conditionalOperatorBad(long v) {
+    field = field < v ? field : v;
+  }
+}