This affects -gmodules only.
Under normal operation pcm_type is a shallow forward declaration
that gets completed later. This is necessary to support cyclic
data structures. If, however, pcm_type is already complete (for
example, because it was loaded for a different target before),
the definition needs to be imported right away, too.
Type::ResolveClangType() effectively ignores the ResolveState
inside type_sp and only looks at IsDefined(), so it never calls
ClangASTImporter::ASTImporterDelegate::ImportDefinitionTo(),
which does extra work for Objective-C classes. This would result
in only the forward declaration to be visible.
An alternative implementation would be to sink this into Type::ResolveClangType ( 88235812a7/lldb/source/Symbol/Type.cpp (L5809)) though it isn't clear to me how to best do this from a layering perspective.
rdar://problem/52134074
Differential Revision: https://reviews.llvm.org/D70415
62 lines
2.0 KiB
Python
62 lines
2.0 KiB
Python
from __future__ import print_function
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import unittest2
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import os
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import shutil
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class TestClangModuleAppUpdate(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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def setUp(self):
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TestBase.setUp(self)
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@skipUnlessDarwin
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@skipIf(debug_info=no_match(["gmodules"]))
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def test_rebuild_app_modules_untouched(self):
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with open(self.getBuildArtifact("module.modulemap"), "w") as f:
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f.write("""
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module Foo { header "f.h" }
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""")
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with open(self.getBuildArtifact("f.h"), "w") as f:
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f.write("""
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@import Foundation;
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@interface Foo : NSObject {
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int i;
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}
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+(instancetype)init;
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@end
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""")
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mod_cache = self.getBuildArtifact("private-module-cache")
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import os
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if os.path.isdir(mod_cache):
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shutil.rmtree(mod_cache)
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self.build()
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self.assertTrue(os.path.isdir(mod_cache), "module cache exists")
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target, process, _, bkpt = lldbutil.run_to_source_breakpoint(
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self, "break here", lldb.SBFileSpec("main.m"))
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bar = target.FindTypes('Bar').GetTypeAtIndex(0)
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foo = bar.GetDirectBaseClassAtIndex(0).GetType()
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self.assertEqual(foo.GetNumberOfFields(), 1)
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self.assertEqual(foo.GetFieldAtIndex(0).GetName(), "i")
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# Rebuild.
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process.Kill()
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os.remove(self.getBuildArtifact('main.o'))
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os.remove(self.getBuildArtifact('a.out'))
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self.build()
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# Reattach.
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target, process, _, _ = lldbutil.run_to_breakpoint_do_run(self, target, bkpt)
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bar = target.FindTypes('Bar').GetTypeAtIndex(0)
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foo = bar.GetDirectBaseClassAtIndex(0).GetType()
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self.assertEqual(foo.GetNumberOfFields(), 1)
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self.assertEqual(foo.GetFieldAtIndex(0).GetName(), "i")
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