Examples with ProgramPoint org.sonar.java.se.ProgramPoint used on opensource projects

Example 6 with ProgramPoint

use of org.sonar.java.se.ProgramPoint in project sonar-java by SonarSource.

the class BytecodeEGWalkerExecuteTest method test_enqueuing_exceptional_yields2.

@Test
public void test_enqueuing_exceptional_yields2() {
    BytecodeCFG cfg = SETestUtils.bytecodeCFG(TRY_WRONG_CATCH_SIGNATURE, squidClassLoader);
    BytecodeCFG.Block b2 = cfg.blocks().get(2);
    walker.programState = ProgramState.EMPTY_STATE.stackValue(new SymbolicValue()).stackValue(new SymbolicValue());
    walker.programPosition = new ProgramPoint(b2).next().next();
    walker.executeInstruction(b2.elements().get(3));
    assertThat(walker.workList).hasSize(3);
    assertThat(walker.workList.pop().programState.exitValue()).isNotNull().isInstanceOf(SymbolicValue.ExceptionalSymbolicValue.class).extracting(sv -> ((SymbolicValue.ExceptionalSymbolicValue) sv).exceptionType().fullyQualifiedName()).containsExactly("java.lang.IllegalStateException");
    assertThat(walker.workList.pop().programState.exitValue()).isNull();
}

Example 7 with ProgramPoint

use of org.sonar.java.se.ProgramPoint in project sonar-java by SonarSource.

the class BytecodeEGWalkerExecuteTest method behavior_with_no_yield_should_stack_value.

@Test
public void behavior_with_no_yield_should_stack_value() throws Exception {
    BehaviorCache behaviorCache = new BehaviorCache(squidClassLoader);
    MethodBehavior methodBehavior = behaviorCache.get("org.mypackage.MyClass#MyMethod()Ljava/lang/Exception;");
    methodBehavior.completed();
    BytecodeEGWalker walker = new BytecodeEGWalker(behaviorCache, semanticModel);
    walker.programState = ProgramState.EMPTY_STATE;
    CFG.IBlock block = mock(CFG.IBlock.class);
    when(block.successors()).thenReturn(Collections.emptySet());
    walker.programPosition = new ProgramPoint(block);
    walker.workList.clear();
    walker.executeInstruction(new Instruction(INVOKESTATIC, new Instruction.FieldOrMethod("org.mypackage.MyClass", "MyMethod", "()Ljava/lang/Exception;")));
    assertThat(walker.workList.getFirst().programState.peekValue()).isNotNull();
}

Example 8 with ProgramPoint

use of org.sonar.java.se.ProgramPoint in project sonar-java by SonarSource.

the class BytecodeEGWalkerExecuteTest method test_tableswitch.

@Test
public void test_tableswitch() throws Exception {
    Instructions instr = new Instructions();
    instr.visitVarInsn(ILOAD, 0);
    Label l0 = new Label();
    Label l1 = new Label();
    Label l2 = new Label();
    Label l3 = new Label();
    instr.visitTableSwitchInsn(0, 2, l3, new Label[] { l0, l1, l2 });
    instr.visitLabel(l0);
    instr.visitInsn(ICONST_0);
    instr.visitVarInsn(ISTORE, 1);
    instr.visitJumpInsn(GOTO, l3);
    instr.visitLabel(l1);
    instr.visitInsn(ICONST_0);
    instr.visitVarInsn(ISTORE, 2);
    instr.visitJumpInsn(GOTO, l3);
    instr.visitLabel(l2);
    instr.visitInsn(ICONST_0);
    instr.visitVarInsn(ISTORE, 3);
    instr.visitLabel(l3);
    instr.visitInsn(RETURN);
    BytecodeCFG cfg = instr.cfg();
    CFG.IBlock<Instruction> entry = cfg.entry();
    BytecodeEGWalker walker = new BytecodeEGWalker(null, null);
    walker.programState = ProgramState.EMPTY_STATE.stackValue(new SymbolicValue());
    walker.handleBlockExit(new ProgramPoint(entry));
    assertThat(walker.workList).hasSize(entry.successors().size());
    walker.workList.forEach(node -> {
        assertThat(node.programState.peekValue()).isNull();
        assertThat(entry.successors().contains(node.programPoint.block)).isTrue();
    });
}

Example 9 with ProgramPoint

use of org.sonar.java.se.ProgramPoint in project sonar-java by SonarSource.

the class BytecodeEGWalkerExecuteTest method test_enqueuing_exceptional_yields.

@Test
public void test_enqueuing_exceptional_yields() {
    BytecodeCFG cfg = SETestUtils.bytecodeCFG(TRY_CATCH_SIGNATURE, squidClassLoader);
    BytecodeCFG.Block b2 = cfg.blocks().get(2);
    walker.programState = ProgramState.EMPTY_STATE.stackValue(new SymbolicValue()).stackValue(new SymbolicValue());
    walker.programPosition = new ProgramPoint(b2).next().next();
    walker.executeInstruction(b2.elements().get(3));
    assertThat(walker.workList).hasSize(4);
}

Example 10 with ProgramPoint

use of org.sonar.java.se.ProgramPoint in project sonar-java by SonarSource.

the class BytecodeEGWalkerExecuteTest method execute.

private ProgramState execute(Instruction instruction, ProgramState startingState) {
    CFG.IBlock block = mock(CFG.IBlock.class);
    when(block.successors()).thenReturn(Collections.emptySet());
    walker.programPosition = new ProgramPoint(block);
    walker.programState = startingState;
    walker.workList.clear();
    walker.executeInstruction(instruction);
    ProgramState programState = walker.programState;
    // X-PROC will enqueue new nodes
    if (instruction.isInvoke() && !walker.workList.isEmpty()) {
        programState = walker.workList.getFirst().programState;
    }
    return programState;
}