com.oracle.truffle.api.instrumentation

Class StandardTags.CallTag

java.lang.Object

com.oracle.truffle.api.instrumentation.Tag

com.oracle.truffle.api.instrumentation.StandardTags.CallTag

Enclosing class:

StandardTags

public static final class StandardTags.CallTag
extends Tag

Marks program locations that represent a call to other guest language functions, methods or closures.

Use case descriptions:

• Debugger: Marks program locations where returning or stepping out from a method/procedure/closure call should halt. The debugger will halt at the code location that has just executed the call that returned.

The CallTag uses the identifier "CALL". A node tagged with StandardTags.CallTag must provide a source section, if its root node provides a source section.

If the a node tagged with call returns a non null value then it must be an interop value. There are assertions in place verifying this when Java assertions are enabled (-ea).

Since:

0.12

Nested Class Summary

Nested classes/interfaces inherited from class com.oracle.truffle.api.instrumentation.Tag

Tag.Identifier

Method Summary

Methods inherited from class com.oracle.truffle.api.instrumentation.Tag

findProvidedTag, getIdentifier

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait