From b5500b9ca0102f1ccaf32f0e77e96d0739aded9b Mon Sep 17 00:00:00 2001
From: pascal <pascal@openbsd.org>
Date: Sat, 3 Sep 2016 22:46:54 +0000
Subject: Use the space freed up by sparc and zaurus to import LLVM.

ok hackroom@
---
 gnu/llvm/utils/lldbDataFormatters.py | 98 ++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 gnu/llvm/utils/lldbDataFormatters.py

(limited to 'gnu/llvm/utils/lldbDataFormatters.py')

diff --git a/gnu/llvm/utils/lldbDataFormatters.py b/gnu/llvm/utils/lldbDataFormatters.py
new file mode 100644
index 00000000000..687729f61ed
--- /dev/null
+++ b/gnu/llvm/utils/lldbDataFormatters.py
@@ -0,0 +1,98 @@
+"""
+LLDB Formatters for LLVM data types.
+
+Load into LLDB with 'command script import /path/to/lldbDataFormatters.py'
+"""
+
+def __lldb_init_module(debugger, internal_dict):
+    debugger.HandleCommand('type category define -e llvm -l c++')
+    debugger.HandleCommand('type synthetic add -w llvm '
+                           '-l lldbDataFormatters.SmallVectorSynthProvider '
+                           '-x "^llvm::SmallVectorImpl<.+>$"')
+    debugger.HandleCommand('type synthetic add -w llvm '
+                           '-l lldbDataFormatters.SmallVectorSynthProvider '
+                           '-x "^llvm::SmallVector<.+,.+>$"')
+    debugger.HandleCommand('type synthetic add -w llvm '
+                           '-l lldbDataFormatters.ArrayRefSynthProvider '
+                           '-x "^llvm::ArrayRef<.+>$"')
+    debugger.HandleCommand('type summary add -w llvm '
+                           '-F lldbDataFormatters.OptionalSummaryProvider '
+                           '-x "^llvm::Optional<.+>$"')
+
+# Pretty printer for llvm::SmallVector/llvm::SmallVectorImpl
+class SmallVectorSynthProvider:
+    def __init__(self, valobj, dict):
+        self.valobj = valobj;
+        self.update() # initialize this provider
+
+    def num_children(self):
+        begin = self.begin.GetValueAsUnsigned(0)
+        end = self.end.GetValueAsUnsigned(0)
+        return (end - begin)/self.type_size
+
+    def get_child_index(self, name):
+        try:
+            return int(name.lstrip('[').rstrip(']'))
+        except:
+            return -1;
+
+    def get_child_at_index(self, index):
+        # Do bounds checking.
+        if index < 0:
+            return None
+        if index >= self.num_children():
+            return None;
+
+        offset = index * self.type_size
+        return self.begin.CreateChildAtOffset('['+str(index)+']',
+                                              offset, self.data_type)
+
+    def update(self):
+        self.begin = self.valobj.GetChildMemberWithName('BeginX')
+        self.end = self.valobj.GetChildMemberWithName('EndX')
+        the_type = self.valobj.GetType()
+        # If this is a reference type we have to dereference it to get to the
+        # template parameter.
+        if the_type.IsReferenceType():
+            the_type = the_type.GetDereferencedType()
+
+        self.data_type = the_type.GetTemplateArgumentType(0)
+        self.type_size = self.data_type.GetByteSize()
+        assert self.type_size != 0
+
+class ArrayRefSynthProvider:
+    """ Provider for llvm::ArrayRef """
+    def __init__(self, valobj, dict):
+        self.valobj = valobj;
+        self.update() # initialize this provider
+
+    def num_children(self):
+        return self.length
+
+    def get_child_index(self, name):
+        try:
+            return int(name.lstrip('[').rstrip(']'))
+        except:
+            return -1;
+
+    def get_child_at_index(self, index):
+        if index < 0 or index >= self.num_children():
+            return None;
+        offset = index * self.type_size
+        return self.data.CreateChildAtOffset('[' + str(index) + ']',
+                                             offset, self.data_type)
+
+    def update(self):
+        self.data = self.valobj.GetChildMemberWithName('Data')
+        length_obj = self.valobj.GetChildMemberWithName('Length')
+        self.length = length_obj.GetValueAsUnsigned(0)
+        self.data_type = self.data.GetType().GetPointeeType()
+        self.type_size = self.data_type.GetByteSize()
+        assert self.type_size != 0
+
+def OptionalSummaryProvider(valobj, internal_dict):
+    if not valobj.GetChildMemberWithName('hasVal').GetValueAsUnsigned(0):
+        return 'None'
+    underlying_type = valobj.GetType().GetTemplateArgumentType(0)
+    storage = valobj.GetChildMemberWithName('storage')
+    return str(storage.Cast(underlying_type))
-- 
cgit v1.2.3-59-g8ed1b