mirror of
https://github.com/Relintai/broken_seals.git
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229 lines
8.1 KiB
Diff
229 lines
8.1 KiB
Diff
From e737ace8fb7c039f276180e1190ef332e4d66705 Mon Sep 17 00:00:00 2001
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From: RevoluPowered <gordon@gordonite.tech>
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Date: Sat, 2 Nov 2019 14:21:21 +0000
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Subject: [PATCH] Added compilation database support for clang and gcc
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This tool is originally from mongodb.
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- Updated CPPSUFFIXES to use scons suffixes
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- objective-c files will also be loaded into the compilation database where the compiler / tooling is available to compile the files.
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Known limitations:
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- this will not work with msvc as your compiler.
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---
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.appveyor.yml | 4 +-
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SConstruct | 4 +
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site_scons/site_tools/compilation_db.py | 173 ++++++++++++++++++++++++
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3 files changed, 180 insertions(+), 1 deletion(-)
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create mode 100644 site_scons/site_tools/compilation_db.py
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diff --git a/.appveyor.yml b/.appveyor.yml
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index 05e7094981d..81a6276d9cf 100644
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--- a/.appveyor.yml
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+++ b/.appveyor.yml
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@@ -20,7 +20,9 @@ cache:
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install:
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- SET "PATH=%PYTHON%;%PYTHON%\\Scripts;%PATH%"
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- - pip install scons==3.1.2
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+ - pip install -U wheel # needed for pip install scons to work, otherwise a flag is missing
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+ - pip install scons # use stable scons
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+ - if defined VS call "%VS%" %ARCH% # if defined - so we can also use mingw
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before_build:
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- echo %GD_PLATFORM%
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diff --git a/SConstruct b/SConstruct
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index a8a4acbcdbf..601c2b6b687 100644
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--- a/SConstruct
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+++ b/SConstruct
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@@ -255,6 +255,10 @@ if selected_platform in platform_list:
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else:
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env = env_base.Clone()
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+ env.Tool("compilation_db")
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+ env.Alias("compiledb", env.CompilationDatabase('compile_commands.json'))
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+
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+
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if env['dev']:
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env['verbose'] = True
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env['warnings'] = "extra"
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diff --git a/site_scons/site_tools/compilation_db.py b/site_scons/site_tools/compilation_db.py
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new file mode 100644
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index 00000000000..086484a153c
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--- /dev/null
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+++ b/site_scons/site_tools/compilation_db.py
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@@ -0,0 +1,173 @@
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+# Copyright 2015 MongoDB Inc.
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+#
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+# Licensed under the Apache License, Version 2.0 (the "License");
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+# you may not use this file except in compliance with the License.
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+# You may obtain a copy of the License at
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+#
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+# http://www.apache.org/licenses/LICENSE-2.0
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+#
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+# Unless required by applicable law or agreed to in writing, software
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+# distributed under the License is distributed on an "AS IS" BASIS,
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+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+# See the License for the specific language governing permissions and
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+# limitations under the License.
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+
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+import json
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+import SCons
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+import itertools
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+
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+# Implements the ability for SCons to emit a compilation database for the MongoDB project. See
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+# http://clang.llvm.org/docs/JSONCompilationDatabase.html for details on what a compilation
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+# database is, and why you might want one. The only user visible entry point here is
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+# 'env.CompilationDatabase'. This method takes an optional 'target' to name the file that
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+# should hold the compilation database, otherwise, the file defaults to compile_commands.json,
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+# which is the name that most clang tools search for by default.
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+
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+# TODO: Is there a better way to do this than this global? Right now this exists so that the
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+# emitter we add can record all of the things it emits, so that the scanner for the top level
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+# compilation database can access the complete list, and also so that the writer has easy
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+# access to write all of the files. But it seems clunky. How can the emitter and the scanner
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+# communicate more gracefully?
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+__COMPILATION_DB_ENTRIES = []
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+
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+# We make no effort to avoid rebuilding the entries. Someday, perhaps we could and even
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+# integrate with the cache, but there doesn't seem to be much call for it.
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+class __CompilationDbNode(SCons.Node.Python.Value):
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+ def __init__(self, value):
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+ SCons.Node.Python.Value.__init__(self, value)
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+ self.Decider(changed_since_last_build_node)
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+
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+
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+def changed_since_last_build_node(child, target, prev_ni, node):
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+ """ Dummy decider to force always building"""
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+ return True
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+
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+
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+def makeEmitCompilationDbEntry(comstr):
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+ """
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+ Effectively this creates a lambda function to capture:
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+ * command line
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+ * source
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+ * target
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+ :param comstr: unevaluated command line
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+ :return: an emitter which has captured the above
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+ """
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+ user_action = SCons.Action.Action(comstr)
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+
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+ def EmitCompilationDbEntry(target, source, env):
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+ """
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+ This emitter will be added to each c/c++ object build to capture the info needed
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+ for clang tools
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+ :param target: target node(s)
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+ :param source: source node(s)
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+ :param env: Environment for use building this node
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+ :return: target(s), source(s)
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+ """
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+
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+ dbtarget = __CompilationDbNode(source)
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+
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+ entry = env.__COMPILATIONDB_Entry(
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+ target=dbtarget, source=[], __COMPILATIONDB_UTARGET=target,
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+ __COMPILATIONDB_USOURCE=source, __COMPILATIONDB_UACTION=user_action,
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+ __COMPILATIONDB_ENV=env)
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+
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+ # TODO: Technically, these next two lines should not be required: it should be fine to
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+ # cache the entries. However, they don't seem to update properly. Since they are quick
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+ # to re-generate disable caching and sidestep this problem.
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+ env.AlwaysBuild(entry)
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+ env.NoCache(entry)
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+
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+ __COMPILATION_DB_ENTRIES.append(dbtarget)
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+
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+ return target, source
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+
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+ return EmitCompilationDbEntry
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+
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+
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+def CompilationDbEntryAction(target, source, env, **kw):
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+ """
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+ Create a dictionary with evaluated command line, target, source
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+ and store that info as an attribute on the target
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+ (Which has been stored in __COMPILATION_DB_ENTRIES array
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+ :param target: target node(s)
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+ :param source: source node(s)
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+ :param env: Environment for use building this node
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+ :param kw:
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+ :return: None
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+ """
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+
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+ command = env['__COMPILATIONDB_UACTION'].strfunction(
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+ target=env['__COMPILATIONDB_UTARGET'],
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+ source=env['__COMPILATIONDB_USOURCE'],
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+ env=env['__COMPILATIONDB_ENV'],
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+ )
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+
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+ entry = {
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+ "directory": env.Dir('#').abspath, "command": command,
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+ "file": str(env['__COMPILATIONDB_USOURCE'][0])
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+ }
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+
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+ target[0].write(entry)
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+
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+
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+def WriteCompilationDb(target, source, env):
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+ entries = []
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+
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+ for s in __COMPILATION_DB_ENTRIES:
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+ entries.append(s.read())
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+
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+ with open(str(target[0]), 'w') as target_file:
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+ json.dump(entries, target_file, sort_keys=True, indent=4, separators=(',', ': '))
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+
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+
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+def ScanCompilationDb(node, env, path):
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+ return __COMPILATION_DB_ENTRIES
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+
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+
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+def generate(env, **kwargs):
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+
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+ static_obj, shared_obj = SCons.Tool.createObjBuilders(env)
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+
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+ env['COMPILATIONDB_COMSTR'] = kwargs.get('COMPILATIONDB_COMSTR',
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+ 'Building compilation database $TARGET')
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+
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+ components_by_suffix = itertools.chain(
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+ itertools.product(env['CPPSUFFIXES'], [
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+ (static_obj, SCons.Defaults.StaticObjectEmitter, '$CXXCOM'),
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+ (shared_obj, SCons.Defaults.SharedObjectEmitter, '$SHCXXCOM'),
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+ ]),
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+ )
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+
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+ for entry in components_by_suffix:
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+ suffix = entry[0]
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+ builder, base_emitter, command = entry[1]
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+
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+ # Ensure we have a valid entry
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+ # used to auto ignore header files
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+ if suffix in builder.emitter:
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+ emitter = builder.emitter[suffix]
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+ builder.emitter[suffix] = SCons.Builder.ListEmitter([
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+ emitter,
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+ makeEmitCompilationDbEntry(command),
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+ ])
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+
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+ env['BUILDERS']['__COMPILATIONDB_Entry'] = SCons.Builder.Builder(
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+ action=SCons.Action.Action(CompilationDbEntryAction, None), )
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+
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+ env['BUILDERS']['__COMPILATIONDB_Database'] = SCons.Builder.Builder(
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+ action=SCons.Action.Action(WriteCompilationDb, "$COMPILATIONDB_COMSTR"),
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+ target_scanner=SCons.Scanner.Scanner(function=ScanCompilationDb, node_class=None))
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+
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+ def CompilationDatabase(env, target):
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+ result = env.__COMPILATIONDB_Database(target=target, source=[])
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+
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+ env.AlwaysBuild(result)
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+ env.NoCache(result)
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+
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+ return result
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+
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+ env.AddMethod(CompilationDatabase, 'CompilationDatabase')
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+
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+
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+def exists(env):
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+ return True
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