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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef gdb_gdb_tests_h
#define gdb_gdb_tests_h
// Support for C++ fragments to be used by Python unit tests for SpiderMonkey's
// GDB support.
//
// That is:
// - js/src/gdb/mozilla holds the actual GDB SpiderMonkey support code.
// - Each '.py' file in js/src/gdb/tests is a unit test for the above.
// - Each '.cpp' file in js/src/gdb/tests is C++ code for one of the unit tests
// to run.
//
// (So the .cpp files are two steps removed from being anything one would
// actually run.)
#include "NamespaceImports.h"
#include "js/GCAnnotations.h"
void breakpoint();
extern void usePointer(const void* ptr);
template <typename T>
void use(const T& thing) {
usePointer(&thing);
}
struct AutoSuppressHazardsForTest {
int dummy;
AutoSuppressHazardsForTest() : dummy(3) {}
~AutoSuppressHazardsForTest() {
// Need nontrivial destructor.
usePointer(&dummy);
}
} JS_HAZ_GC_SUPPRESSED;
struct GDBFragment {
GDBFragment() {
next = allFragments;
allFragments = this;
}
// The name of this fragment. gdb-tests.cpp runs the fragments whose names
// are passed to it on the command line.
virtual const char* name() = 0;
// Run the fragment code. |argv| is a reference to the pointer into the
// command-line argument vector, referring to the argument immediately
// following this fragment's name. The fragment can consume arguments and
// advance argv if it wishes.
virtual void run(JSContext* cx, const char**& argv) = 0;
// We declare one instance of this type for each fragment to run. The
// constructor adds each instance to a linked list, of which this is
// the head.
static GDBFragment* allFragments;
// The link in the list of all instances.
GDBFragment* next;
};
// Macro for declaring a C++ fragment for some Python unit test to call. Usage:
//
// FRAGMENT(<category>, <name>) { <body of fragment function> }
//
// where <category> and <name> are identifiers. The gdb-tests executable
// takes a series of fragment names as command-line arguments and runs them in
// turn; each fragment is named <category>.<name> on the command line.
//
// The body runs in a scope where 'cx' is a usable JSContext*.
#define FRAGMENT(category, subname) \
class FRAGMENT_CLASS_NAME(category, subname) : public GDBFragment { \
void run(JSContext* cx, const char**& argv) override; \
const char* name() override { \
return FRAGMENT_STRING_NAME(category, subname); \
} \
static FRAGMENT_CLASS_NAME(category, subname) singleton; \
}; \
FRAGMENT_CLASS_NAME(category, subname) \
FRAGMENT_CLASS_NAME(category, subname)::singleton; \
void FRAGMENT_CLASS_NAME(category, subname)::run(JSContext* cx, \
const char**& argv)
#define FRAGMENT_STRING_NAME(category, subname) (#category "." #subname)
#define FRAGMENT_CLASS_NAME(category, subname) Fragment_##category##_##subname
#endif /* gdb_gdb_tests_h */
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