From 5bac3403d7e51f72ee16c8123c2c8607a1d93ca9 Mon Sep 17 00:00:00 2001 From: Holger Freyther Date: Fri, 12 Feb 2010 14:14:49 +0000 Subject: bitbake: [parser] Move evaluating into the ast class... Signed-off-by: Richard Purdie --- bitbake/lib/bb/parse/ast.py | 191 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 191 insertions(+) create mode 100644 bitbake/lib/bb/parse/ast.py (limited to 'bitbake/lib/bb/parse/ast.py') diff --git a/bitbake/lib/bb/parse/ast.py b/bitbake/lib/bb/parse/ast.py new file mode 100644 index 000000000..032b4961b --- /dev/null +++ b/bitbake/lib/bb/parse/ast.py @@ -0,0 +1,191 @@ +# ex:ts=4:sw=4:sts=4:et +# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- +""" + AbstractSyntaxTree classes for the Bitbake language +""" + +# Copyright (C) 2003, 2004 Chris Larson +# Copyright (C) 2003, 2004 Phil Blundell +# Copyright (C) 2009 Holger Hans Peter Freyther +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 2 as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program; if not, write to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +import bb, re + +__word__ = re.compile(r"\S+") +__parsed_methods__ = methodpool.get_parsed_dict() + +def handleInclude(m, fn, lineno, data, force): + s = bb.data.expand(m.group(1), data) + bb.msg.debug(3, bb.msg.domain.Parsing, "CONF %s:%d: including %s" % (fn, lineno, s)) + if force: + include(fn, s, data, "include required") + else: + include(fn, s, data, False) + +def handleExport(m, data): + bb.data.setVarFlag(m.group(1), "export", 1, data) + +def handleData(groupd, data): + key = groupd["var"] + if "exp" in groupd and groupd["exp"] != None: + bb.data.setVarFlag(key, "export", 1, data) + if "ques" in groupd and groupd["ques"] != None: + val = getFunc(groupd, key, data) + if val == None: + val = groupd["value"] + elif "colon" in groupd and groupd["colon"] != None: + e = data.createCopy() + bb.data.update_data(e) + val = bb.data.expand(groupd["value"], e) + elif "append" in groupd and groupd["append"] != None: + val = "%s %s" % ((getFunc(groupd, key, data) or ""), groupd["value"]) + elif "prepend" in groupd and groupd["prepend"] != None: + val = "%s %s" % (groupd["value"], (getFunc(groupd, key, data) or "")) + elif "postdot" in groupd and groupd["postdot"] != None: + val = "%s%s" % ((getFunc(groupd, key, data) or ""), groupd["value"]) + elif "predot" in groupd and groupd["predot"] != None: + val = "%s%s" % (groupd["value"], (getFunc(groupd, key, data) or "")) + else: + val = groupd["value"] + if 'flag' in groupd and groupd['flag'] != None: + bb.msg.debug(3, bb.msg.domain.Parsing, "setVarFlag(%s, %s, %s, data)" % (key, groupd['flag'], val)) + bb.data.setVarFlag(key, groupd['flag'], val, data) + else: + bb.data.setVar(key, val, data) + +def getFunc(groupd, key, data): + if 'flag' in groupd and groupd['flag'] != None: + return bb.data.getVarFlag(key, groupd['flag'], data) + else: + return bb.data.getVar(key, data) + +def handleMethod(func_name, lineno, fn, body, d): + if func_name == "__anonymous": + funcname = ("__anon_%s_%s" % (lineno, fn.translate(string.maketrans('/.+-', '____')))) + if not funcname in methodpool._parsed_fns: + text = "def %s(d):\n" % (funcname) + '\n'.join(body) + methodpool.insert_method(funcname, text, fn) + anonfuncs = data.getVar('__BBANONFUNCS', d) or [] + anonfuncs.append(funcname) + data.setVar('__BBANONFUNCS', anonfuncs, d) + else: + data.setVarFlag(func_name, "func", 1, d) + data.setVar(func_name, '\n'.join(body), d) + + + +def handlePythonMethod(root, body, fn): + # Note we will add root to parsedmethods after having parse + # 'this' file. This means we will not parse methods from + # bb classes twice + if not root in __parsed_methods__: + text = '\n'.join(body) + methodpool.insert_method(root, text, fn) + +def handleMethodFlags(key, m, d): + if data.getVar(key, d): + # Clean up old version of this piece of metadata, as its + # flags could cause problems + data.setVarFlag(key, 'python', None, d) + data.setVarFlag(key, 'fakeroot', None, d) + if m.group("py") is not None: + data.setVarFlag(key, "python", "1", d) + else: + data.delVarFlag(key, "python", d) + if m.group("fr") is not None: + data.setVarFlag(key, "fakeroot", "1", d) + else: + data.delVarFlag(key, "fakeroot", d) + +def handleExportFuncs(m, d): + fns = m.group(1) + n = __word__.findall(fns) + for f in n: + allvars = [] + allvars.append(f) + allvars.append(classes[-1] + "_" + f) + + vars = [[ allvars[0], allvars[1] ]] + if len(classes) > 1 and classes[-2] is not None: + allvars.append(classes[-2] + "_" + f) + vars = [] + vars.append([allvars[2], allvars[1]]) + vars.append([allvars[0], allvars[2]]) + + for (var, calledvar) in vars: + if data.getVar(var, d) and not data.getVarFlag(var, 'export_func', d): + continue + + if data.getVar(var, d): + data.setVarFlag(var, 'python', None, d) + data.setVarFlag(var, 'func', None, d) + + for flag in [ "func", "python" ]: + if data.getVarFlag(calledvar, flag, d): + data.setVarFlag(var, flag, data.getVarFlag(calledvar, flag, d), d) + for flag in [ "dirs" ]: + if data.getVarFlag(var, flag, d): + data.setVarFlag(calledvar, flag, data.getVarFlag(var, flag, d), d) + + if data.getVarFlag(calledvar, "python", d): + data.setVar(var, "\tbb.build.exec_func('" + calledvar + "', d)\n", d) + else: + data.setVar(var, "\t" + calledvar + "\n", d) + data.setVarFlag(var, 'export_func', '1', d) + +def handleAddTask(m, d): + func = m.group("func") + before = m.group("before") + after = m.group("after") + if func is None: + return + if func[:3] != "do_": + var = "do_" + func + + data.setVarFlag(var, "task", 1, d) + + bbtasks = data.getVar('__BBTASKS', d) or [] + if not var in bbtasks: + bbtasks.append(var) + data.setVar('__BBTASKS', bbtasks, d) + + existing = data.getVarFlag(var, "deps", d) or [] + if after is not None: + # set up deps for function + for entry in after.split(): + if entry not in existing: + existing.append(entry) + data.setVarFlag(var, "deps", existing, d) + if before is not None: + # set up things that depend on this func + for entry in before.split(): + existing = data.getVarFlag(entry, "deps", d) or [] + if var not in existing: + data.setVarFlag(entry, "deps", [var] + existing, d) + +def handleBBHandlers(m, d): + fns = m.group(1) + hs = __word__.findall(fns) + bbhands = data.getVar('__BBHANDLERS', d) or [] + for h in hs: + bbhands.append(h) + data.setVarFlag(h, "handler", 1, d) + data.setVar('__BBHANDLERS', bbhands, d) + +def handleInherit(m, d): + files = m.group(1) + n = __word__.findall(files) + inherit(n, d) + -- cgit v1.2.3