ComposeWarningsGuard

java.lang.Object
- com.google.javascript.jscomp.WarningsGuard
- - com.google.javascript.jscomp.ComposeWarningsGuard

All Implemented Interfaces:

java.io.Serializable
```
public final class ComposeWarningsGuard
extends WarningsGuard
```
WarningsGuard that represents just a chain of other guards. For example we could have following chain 1) all warnings outside of /foo/ should be suppressed 2) errors with key JSC_BAR should be marked as warning 3) the rest should be reported as error
This class is designed for such behavior.

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from class com.google.javascript.jscomp.WarningsGuard
  WarningsGuard.Priority

Constructor Summary

Constructors
Constructor Description

ComposeWarningsGuard(WarningsGuard... guards)

ComposeWarningsGuard(java.util.List<WarningsGuard> guards)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`CheckLevel`	`level(JSError error)`	Returns a new check level for a given error.
`Tri`	`mustRunChecks(DiagnosticGroup group)`	Do checks for `group` still need to be run if this guard is installed? TRUE: Enables one or more types in the group, so it must be checked.
`java.lang.String`	`toString()`

Methods inherited from class com.google.javascript.jscomp.WarningsGuard
getPriority

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

- Constructor Detail
  - ComposeWarningsGuard
```
public ComposeWarningsGuard(java.util.List<WarningsGuard> guards)
```
  - ComposeWarningsGuard
```
public ComposeWarningsGuard(WarningsGuard... guards)
```
- Method Detail
  - level
```
@Nullable
public CheckLevel level(JSError error)
```
    Description copied from class: WarningsGuard
    
    Returns a new check level for a given error.
    `null` means that this guard does not know what to do with the error. `null` can be used it chain multiple guards; if current guard returns null, then the next in the chain should process it.
    
    Specified by:
    
    level in class WarningsGuard
    
    Parameters:
    
    error - a reported error.
    
    Returns:
    
    what level given error should have.
  - mustRunChecks
```
public Tri mustRunChecks(DiagnosticGroup group)
```
    Description copied from class: WarningsGuard
    Do checks for `group` still need to be run if this guard is installed?
    
    TRUE: Enables one or more types in the group, so it must be checked.
    FALSE: Disables all types in the group, so it need not be checked.
    UNKNOWN: Does not affect or only partially disables the group, so checking is undecided.
    Overrides:
    
    mustRunChecks in class WarningsGuard
    
    Parameters:
    
    group - a group to check.
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object