[antlr-interest] Help!A source-to-source compiler and debugger:how to use SourceDebugExtension?
lzy7886 <lzy7886 at yahoo.com>
lzy7886 at yahoo.com
Wed Feb 19 03:31:16 PST 2003
I wanna develop one dedicated language using java as the Intermediate
Code, that is a source-to-source compiler converting the new language
to java and a debugger to transform the debugging information from VM
to the vocabulary of my languge.
In jdk1.4.x documentation,I found the following words:
**********************************************
Support For Debugging Other Languages
The Java Platform Debugger Architecture has been extended so that non-
Java programming language source, which is translated to Java
programming language source, can be debugged in the future. The table
below describes the new APIs and APIs with comments that have
changed. This information is based on the SourceDebugExtension.
-----------------------------------------
New APIs APIs with Changed Comments
JVMDI
GetSourceDebugExtension
JDWP - ReferenceType (2) Command Set
SourceDebugExtension Command (12)
JDWP - VirtualMachine (1) Command Set
SetDefaultStratum Command (19)
JDI - VirtualMachine interface
void setDefaultStratum(String stratum)
String getDefaultStratum()
JDI - ReferenceType interface
String sourceNames(String stratum) String sourceName()
String sourcePaths(String stratum)
List allLineLocations(String stratum, String sourceName) List
allLineLocations()
List locationsOfLine(String stratum, String sourceName, int
lineNumber) List
locationsOfLine(int lineNumber)
List availableStrata()
String defaultStratum()
String sourceDebugExtension()
JDI - Method interface
List allLineLocations(String stratum, String sourceName) List
allLineLocations()
List locationsOfLine(String stratum, String sourceName, int
lineNumber) List
locationsOfLine(int lineNumber)
JDI - Location interface
class comment (strata defined)
int lineNumber(String stratum) int lineNumber()
String sourceName(String stratum) String sourceName()
String sourcePath(String stratum)
String sourcePath()
--------------------------------------------------------------
but since there is only one person:me who knows the new language,so I
assume this new information of SourceDebugExtension in class file
should be generated by the new compiler and then I can use jpda to
get this information from the debug target, which gets the
information from the class file in question. But the same question
arises again,how does jpda know how to interprete the
SourceDebugExtension information?Do I need override all these
class related myself or is there any solution availabe somewhere?
Can you tell me?
Thanks a lot in advance!
lzy
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