This will allow us (later) to make nice descriptions of the state of
an isolate, e.g. "isolate 7112 is paused due to breakpoint 2" or
"isolate 7112 is paused due to interrupt" or "isolate 7112 is
running".
Use a new Pause() function to call the event handler during a pause.
It does some shared checking, setup, teardown.
Minor change in isolate interrupt handling - before we were not
setting 'in_event_handler_' in this case. Now we set 'pause_event_'
here, which will guard against recursive pauses in this case.
Reviewer: not sure what I think about all the names I used here.
"pause_event_" is very similar to PausedEvent but means something
different, as it includes pauses, interrupts, and (maybe) exceptions.
Dunno.
R=hausner@google.com
Review URL: https://codereview.chromium.org//118603002
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@31356 260f80e4-7a28-3924-810f-c04153c831b5
some breakpoints to be skipped when set in optimized closure
functions.
Update implicit_closure_function() to always return null for
factories. Factories use the shared data_ field for another purpose.
This fixes an assertion failure when HasImplicitClosureFunciton is
called for a factory.
Add a TODO for an assertion failure in Class::Name which is not in the
scope of this change.
(patched from an earlier review)
Review URL: https://codereview.chromium.org//64173005
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@30063 260f80e4-7a28-3924-810f-c04153c831b5
The AST for static getters differs between parsing the first time, and
subsequent parsings. This leads to a mismatch in deoptimization-ids
between the optimized and the unoptimized code.
This CL avoids creating different ASTs for the same static getters. To allow
better inlining of these getters, the initialization expression is wrapped in a
hidden static initializer-function. As a result the size of such getters is
constant and does not depend on the initializer expression.
R=srdjan@google.com
Review URL: https://codereview.chromium.org//51123003
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@29680 260f80e4-7a28-3924-810f-c04153c831b5
- Make sure to keep the main/control port opened until the
isolate is finished.
- Account for the number of opened control ports to be able
to determine whether there are live ports.
- Ensure that the spawned isolated is kept alive until the
initial startup message can be handled.
- Add more isolate tracing output.
- Use the control port for the debugger id.
Review URL: https://codereview.chromium.org//47573002
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@29323 260f80e4-7a28-3924-810f-c04153c831b5
inlined frames.
------------
Most remaining deoptimization code from the code generator moves to
DeoptContext. This allows the code to be reused by the debugger.
There is some rework of the code along the way. The remaining code in
the code generator is simpler.
Implement the ability to deopt a frame to an Array. Each inlined
frame accesses its locals from this array at some fixed offset.
Refactor the Debugger::CollectStackTrace code. New code is int
Debugger::CollectStackTraceNew. There is a flag --use_new_stacktrace
which can be used to revert back to the old version. I intend to
remove this flag shortly, after any dust clears.
Added a unit test which makes sure that we can inspect locals from
optimized and inlined frames. Tested this code in the dart editor
debugger as well.
R=iposva@google.com, srdjan@google.com
Review URL: https://codereview.chromium.org//26255004
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@28468 260f80e4-7a28-3924-810f-c04153c831b5
By inserting the necessary checks for null inside the callee
at the AST level, the code generation of == operations can be
greatly simplified.
This is a performance-neutral change and a step for allowing
generic inlining of arbitrary == methods. So far we could only
inline them for a common set of types in the flow graph
optimizer.
R=srdjan@google.com
Review URL: https://codereview.chromium.org//24203004
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@28084 260f80e4-7a28-3924-810f-c04153c831b5
Update VM to latest spec. Referencing a name that is imported
from more than one library is no longer a compile-time error.
If one of the sources of an ambiguous reference is a dart library,
the dart library declaration is automatically hidden.
Also fixes a bug where looking up a getter name in a library
found the getter even though the name is filtered out in the
'hide' combinator.
Long-term we should fix the need for repeatedly convert between
the mangled getter and setter names and the untangled name.
Fixes 12915, 12913, 12724.
R=regis@google.com
Review URL: https://codereview.chromium.org//23484020
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@27312 260f80e4-7a28-3924-810f-c04153c831b5
Until now there was a large discrepancy between
x.f() and
(x.f)()
This CL makes x.f() as fast as (x.f)() by automatically
generating a intermediate dispatcher function that loads
the field and invokes the result as a closure.
The approach resembles the one taken for fast noSuchMethod
invocation and reuses the same per-class cache
of dispatcher functions.
It also fixes a bug in the debugger so that VM-generated
implicit dispatcher functions (like for noSuchMethod, or
field-as-method invocation) don't show up the debuggers
stack trace.
BUG=https://code.google.com/p/dart/issues/detail?id=11041R=srdjan@google.com
Review URL: https://codereview.chromium.org//18750004
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@25001 260f80e4-7a28-3924-810f-c04153c831b5
On each call that triggers a noSuchMethod invocation we
attach a custom dispatch function that allocates the
invocation object and invokes noSuchMethod. This dispatcher
is compiled and optimized like a normal Dart function.
Similar to method-extractors, these implicit dispatchers
do not show up as normal functions.
As a first step this CL only handles invocations of getters
and methods with no like o.foo or o.foo(). This CL gives
a >25x speedup of such noSuchMethod invocations. Calls with
multiple arguments still go through the slow path.
R=srdjan@google.com
Review URL: https://codereview.chromium.org//17315008
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@24266 260f80e4-7a28-3924-810f-c04153c831b5
Introduce a new PcDescriptor kind to distinguish closure calls from other runtime calls. The debugger can patch these calls to set a breakpoint. When stepping into a closure call, the debugger must fish out the closure object from the stack, find the function and set breakpoints in it.
Arm and Mips breakpoint stubs are not implemented yet. ia32 and x64 stubs tested by hand. Automated test to follow.
R=srdjan@google.com
Review URL: https://codereview.chromium.org//14858033
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@22596 260f80e4-7a28-3924-810f-c04153c831b5
turnidge@google.com