Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty

1 files changed, 112 insertions, 0 deletions

diff --git a/gnu/llvm/lldb/examples/summaries/cocoa/metrics.py b/gnu/llvm/lldb/examples/summaries/cocoa/metrics.py
new file mode 100644
index 00000000000..e7fe88e6903
--- /dev/null
+++ b/gnu/llvm/lldb/examples/summaries/cocoa/metrics.py
@@ -0,0 +1,112 @@
+"""
+Objective-C runtime wrapper for use by LLDB Python formatters
+
+Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+See https://llvm.org/LICENSE.txt for license information.
+SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+"""
+import lldb
+import time
+import datetime
+import inspect
+
+
+class TimeMetrics:
+
+    @staticmethod
+    def generate(label=None):
+        return TimeMetrics(label)
+
+    def __init__(self, lbl=None):
+        self.label = "" if lbl is None else lbl
+        pass
+
+    def __enter__(self):
+        caller = inspect.stack()[1]
+        self.function = str(caller)
+        self.enter_time = time.clock()
+
+    def __exit__(self, a, b, c):
+        self.exit_time = time.clock()
+        print("It took " + str(self.exit_time - self.enter_time) +
+              " time units to run through " + self.function + self.label)
+        return False
+
+
+class Counter:
+
+    def __init__(self):
+        self.count = 0
+        self.list = []
+
+    def update(self, name):
+        self.count = self.count + 1
+        # avoid getting the full dump of this ValueObject just to save its
+        # metrics
+        if isinstance(name, lldb.SBValue):
+            self.list.append(name.GetName())
+        else:
+            self.list.append(str(name))
+
+    def __str__(self):
+        return str(self.count) + " times, for items [" + str(self.list) + "]"
+
+
+class MetricsPrinter_Verbose:
+
+    def __init__(self, metrics):
+        self.metrics = metrics
+
+    def __str__(self):
+        string = ""
+        for key, value in self.metrics.metrics.items():
+            string = string + "metric " + str(key) + ": " + str(value) + "\n"
+        return string
+
+
+class MetricsPrinter_Compact:
+
+    def __init__(self, metrics):
+        self.metrics = metrics
+
+    def __str__(self):
+        string = ""
+        for key, value in self.metrics.metrics.items():
+            string = string + "metric " + \
+                str(key) + " was hit " + str(value.count) + " times\n"
+        return string
+
+
+class Metrics:
+
+    def __init__(self):
+        self.metrics = {}
+
+    def add_metric(self, name):
+        self.metrics[name] = Counter()
+
+    def metric_hit(self, metric, trigger):
+        self.metrics[metric].update(trigger)
+
+    def __getitem__(self, key):
+        return self.metrics[key]
+
+    def __getattr__(self, name):
+        if name == 'compact':
+            return MetricsPrinter_Compact(self)
+        if name == 'verbose':
+            return MetricsPrinter_Verbose(self)
+        raise AttributeError("%r object has no attribute %r" %
+                             (type(self).__name__, name))
+
+    def __str__(self):
+        return str(self.verbose)
+
+    def metric_success(self, metric):
+        total_count = 0
+        metric_count = self[metric].count
+        for key, value in self.metrics.items():
+            total_count = total_count + value.count
+        if total_count > 0:
+            return metric_count / float(total_count)
+        return 0