Microsoft Technology Licensing, LLC

Akrosh Gandhi

Tae Hyung Kim

Michael C Fanning

Timothy Scott Rice

Gregory Bernard Miskelly

Andrew R Sterland

Mikhail Mikhailovich Koltachev

Nikhil Khandelwal

A dual-mode debugger can debug native code or interpreted code. Transitioning between modes can be triggered by defined bailout conditions. A program can be debugged by attaching a debugger and compiling the program into native code under the debugger. At defined points in the program, debugging can transition from native mode to interpreted mode. Debugging the native code can stop, current state can be captured, and an interpreter can be instantiated. An interpreter stack can be created and can be populated with the captured current state. Debugging operations which involve execution control: pausing execution, continuing execution, stepping into, out of or over a section of code and so on, can occur in interpreted mode, which is typically easier to implement. Debugging operations which involve inspection and modification of variables can occur in native mode.

Debugging native code by transitioning from execution in native mode to execution in interpreted mode

Aspects of the subject matter described herein relate to imperative attribution. In aspects, metadata of a managed runtime environment may be set by imperative statements included in code of a program executing in the managed runtime environment. The metadata may be associated with lookup data that identifies the metadata. The lookup data may be formed from an identifier supplied by an imperative statement and an identifier of a logical element which may be explicitly or implicitly supplied. The metadata may be computed at parse time, run time, or another time and may be computed based on state available to a managed runtime environment at the time the metadata is computed.

Imperative attribution for elements in managed runtimes

Aspects of the subject matter described herein relate to imperative attribution. In aspects, metadata of a managed runtime environment may be set by imperative statements included in code of a program executing in the managed runtime environment. A metadata consumer may request the metadata. A metadata identifier of the metadata requested may be provided implicitly or explicitly. A parameter that indicates how to obtain the metadata may also be provided. In response, the metadata may be obtained and provided. The metadata may be computed at parse time, run time, or another time and may be computed based on state available to a managed runtime environment at the time the metadata is computed.

Obtaining metadata set by imperative statement

Aspects of the subject matter described herein relate to assisting development tools. In aspects, statements that influence runtime behavior may be inserted into code of a program. For example, a statement inserted into a function may set a property of a runtime object to indicate that a debugger is to be notified for exceptions that are encountered within the scope of the function. When a runtime environment encounters an exception, the runtime environment may determine whether the property applies to the currently-executing scope. If so, the runtime environment may notify or not notify a development tool of the exception based on the value of the property.

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Akrosh Gandhi