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b9c1b51e45
*** to conform to clang-format’s LLVM style. This kind of mass change has
*** two obvious implications:
Firstly, merging this particular commit into a downstream fork may be a huge
effort. Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit. The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):
find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;
The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.
Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit. There are alternatives available that will attempt
to look through this change and find the appropriate prior commit. YMMV.
llvm-svn: 280751
240 lines
8.2 KiB
Python
240 lines
8.2 KiB
Python
##===-- sourcewin.py -----------------------------------------*- Python -*-===##
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##
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# The LLVM Compiler Infrastructure
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##
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# This file is distributed under the University of Illinois Open Source
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# License. See LICENSE.TXT for details.
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##
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##===----------------------------------------------------------------------===##
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import cui
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import curses
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import lldb
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import lldbutil
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import re
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import os
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class SourceWin(cui.TitledWin):
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def __init__(self, driver, x, y, w, h):
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super(SourceWin, self).__init__(x, y, w, h, "Source")
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self.sourceman = driver.getSourceManager()
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self.sources = {}
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self.filename = None
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self.pc_line = None
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self.viewline = 0
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self.breakpoints = {}
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self.win.scrollok(1)
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self.markerPC = ":) "
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self.markerBP = "B> "
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self.markerNone = " "
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try:
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from pygments.formatters import TerminalFormatter
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self.formatter = TerminalFormatter()
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except ImportError:
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#self.win.addstr("\nWarning: no 'pygments' library found. Syntax highlighting is disabled.")
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self.lexer = None
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self.formatter = None
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pass
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# FIXME: syntax highlight broken
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self.formatter = None
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self.lexer = None
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def handleEvent(self, event):
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if isinstance(event, int):
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self.handleKey(event)
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return
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if isinstance(event, lldb.SBEvent):
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if lldb.SBBreakpoint.EventIsBreakpointEvent(event):
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self.handleBPEvent(event)
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if lldb.SBProcess.EventIsProcessEvent(event) and \
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not lldb.SBProcess.GetRestartedFromEvent(event):
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process = lldb.SBProcess.GetProcessFromEvent(event)
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if not process.IsValid():
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return
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if process.GetState() == lldb.eStateStopped:
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self.refreshSource(process)
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elif process.GetState() == lldb.eStateExited:
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self.notifyExited(process)
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def notifyExited(self, process):
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self.win.erase()
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target = lldbutil.get_description(process.GetTarget())
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pid = process.GetProcessID()
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ec = process.GetExitStatus()
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self.win.addstr(
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"\nProcess %s [%d] has exited with exit-code %d" %
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(target, pid, ec))
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def pageUp(self):
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if self.viewline > 0:
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self.viewline = self.viewline - 1
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self.refreshSource()
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def pageDown(self):
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if self.viewline < len(self.content) - self.height + 1:
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self.viewline = self.viewline + 1
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self.refreshSource()
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pass
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def handleKey(self, key):
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if key == curses.KEY_DOWN:
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self.pageDown()
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elif key == curses.KEY_UP:
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self.pageUp()
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def updateViewline(self):
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half = self.height / 2
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if self.pc_line < half:
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self.viewline = 0
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else:
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self.viewline = self.pc_line - half + 1
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if self.viewline < 0:
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raise Exception(
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"negative viewline: pc=%d viewline=%d" %
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(self.pc_line, self.viewline))
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def refreshSource(self, process=None):
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(self.height, self.width) = self.win.getmaxyx()
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if process is not None:
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loc = process.GetSelectedThread().GetSelectedFrame().GetLineEntry()
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f = loc.GetFileSpec()
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self.pc_line = loc.GetLine()
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if not f.IsValid():
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self.win.addstr(0, 0, "Invalid source file")
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return
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self.filename = f.GetFilename()
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path = os.path.join(f.GetDirectory(), self.filename)
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self.setTitle(path)
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self.content = self.getContent(path)
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self.updateViewline()
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if self.filename is None:
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return
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if self.formatter is not None:
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from pygments.lexers import get_lexer_for_filename
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self.lexer = get_lexer_for_filename(self.filename)
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bps = [] if not self.filename in self.breakpoints else self.breakpoints[self.filename]
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self.win.erase()
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if self.content:
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self.formatContent(self.content, self.pc_line, bps)
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def getContent(self, path):
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content = []
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if path in self.sources:
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content = self.sources[path]
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else:
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if os.path.exists(path):
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with open(path) as x:
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content = x.readlines()
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self.sources[path] = content
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return content
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def formatContent(self, content, pc_line, breakpoints):
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source = ""
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count = 1
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self.win.erase()
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end = min(len(content), self.viewline + self.height)
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for i in range(self.viewline, end):
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line_num = i + 1
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marker = self.markerNone
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attr = curses.A_NORMAL
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if line_num == pc_line:
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attr = curses.A_REVERSE
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if line_num in breakpoints:
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marker = self.markerBP
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line = "%s%3d %s" % (marker, line_num, self.highlight(content[i]))
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if len(line) >= self.width:
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line = line[0:self.width - 1] + "\n"
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self.win.addstr(line, attr)
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source += line
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count = count + 1
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return source
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def highlight(self, source):
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if self.lexer and self.formatter:
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from pygments import highlight
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return highlight(source, self.lexer, self.formatter)
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else:
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return source
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def addBPLocations(self, locations):
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for path in locations:
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lines = locations[path]
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if path in self.breakpoints:
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self.breakpoints[path].update(lines)
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else:
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self.breakpoints[path] = lines
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def removeBPLocations(self, locations):
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for path in locations:
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lines = locations[path]
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if path in self.breakpoints:
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self.breakpoints[path].difference_update(lines)
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else:
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raise "Removing locations that were never added...no good"
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def handleBPEvent(self, event):
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def getLocations(event):
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locs = {}
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bp = lldb.SBBreakpoint.GetBreakpointFromEvent(event)
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if bp.IsInternal():
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# don't show anything for internal breakpoints
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return
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for location in bp:
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# hack! getting the LineEntry via SBBreakpointLocation.GetAddress.GetLineEntry does not work good for
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# inlined frames, so we get the description (which does take
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# into account inlined functions) and parse it.
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desc = lldbutil.get_description(
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location, lldb.eDescriptionLevelFull)
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match = re.search('at\ ([^:]+):([\d]+)', desc)
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try:
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path = match.group(1)
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line = int(match.group(2).strip())
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except ValueError as e:
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# bp loc unparsable
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continue
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if path in locs:
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locs[path].add(line)
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else:
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locs[path] = set([line])
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return locs
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event_type = lldb.SBBreakpoint.GetBreakpointEventTypeFromEvent(event)
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if event_type == lldb.eBreakpointEventTypeEnabled \
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or event_type == lldb.eBreakpointEventTypeAdded \
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or event_type == lldb.eBreakpointEventTypeLocationsResolved \
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or event_type == lldb.eBreakpointEventTypeLocationsAdded:
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self.addBPLocations(getLocations(event))
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elif event_type == lldb.eBreakpointEventTypeRemoved \
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or event_type == lldb.eBreakpointEventTypeLocationsRemoved \
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or event_type == lldb.eBreakpointEventTypeDisabled:
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self.removeBPLocations(getLocations(event))
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elif event_type == lldb.eBreakpointEventTypeCommandChanged \
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or event_type == lldb.eBreakpointEventTypeConditionChanged \
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or event_type == lldb.eBreakpointEventTypeIgnoreChanged \
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or event_type == lldb.eBreakpointEventTypeThreadChanged \
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or event_type == lldb.eBreakpointEventTypeInvalidType:
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# no-op
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pass
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self.refreshSource()
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