[parser] Move evaluating into the ast class...

1 files changed, 191 insertions, 0 deletions

diff --git a/lib/bb/parse/ast.py b/lib/bb/parse/ast.py
new file mode 100644
index 000000000..032b4961b
--- /dev/null
+++ b/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)
+