RuntimeFlags (MPS.Core (JetBrains MPS 2019.1.0))

java.lang.Object
- jetbrains.mps.RuntimeFlags

```
public final class RuntimeFlags
extends Object
```
Replacement for MPSCore#isMergeDriverMode and MPSCore#isTestMode as these flags has nothing to do with component initialization that occurs in MPSCore class, nor with dependencies of mps core component. In fact, I'm not even sure they has to be part of kernel module, rather some workbench or platform?

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static TestMode`	`getTestMode()`
`static boolean`	`isExceptionOnBadCast()`	Default value: system property `"mps.disableNodeCastExceptions"`
`static boolean`	`isInternalMode()`
`static boolean`	`isMergeDriverMode()`	FIXME bad name, it's not necessarily merge we run at, e.g.
`static boolean`	`isTestMode()`
`static boolean`	`isUseInterpretedLanguages()`
`static void`	`setInternalMode(boolean internalMode)`
`static void`	`setMergeDriverMode(boolean mergeDriverMode)`
`static void`	`setTestMode(TestMode testMode)`
`static void`	`setUseInterpretedLanguages(boolean useInterpretedLanguages)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - getTestMode
```
public static TestMode getTestMode()
```
  - isTestMode
```
public static boolean isTestMode()
```
  - setTestMode
```
public static void setTestMode(TestMode testMode)
```
  - isInternalMode
```
public static boolean isInternalMode()
```
  - setInternalMode
```
public static void setInternalMode(boolean internalMode)
```
  - isMergeDriverMode
```
public static boolean isMergeDriverMode()
```
    FIXME bad name, it's not necessarily merge we run at, e.g. ConvertToBinary task uses it as well (set to true), it's rather 'No MPS runtime' mode
    
    Returns:
    
    true if no regular MPS facilities shall be expected (e.g. LanguageRegistry, ConceptRegistry and alike).
  - setMergeDriverMode
```
public static void setMergeDriverMode(boolean mergeDriverMode)
```
  - isUseInterpretedLanguages
```
public static boolean isUseInterpretedLanguages()
```
  - setUseInterpretedLanguages
```
public static void setUseInterpretedLanguages(boolean useInterpretedLanguages)
```
  - isExceptionOnBadCast
```
public static boolean isExceptionOnBadCast()
```
    Default value: system property "mps.disableNodeCastExceptions"
    
    Returns:
    
    true if node cast shall throw an exception. if false, bad cast results in a log warning only.