forked from OSchip/llvm-project
570 lines
20 KiB
Python
570 lines
20 KiB
Python
import os
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from clang.cindex import Config
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if 'CLANG_LIBRARY_PATH' in os.environ:
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Config.set_library_path(os.environ['CLANG_LIBRARY_PATH'])
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import ctypes
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import gc
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import unittest
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from clang.cindex import AvailabilityKind
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from clang.cindex import CursorKind
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from clang.cindex import TemplateArgumentKind
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from clang.cindex import TranslationUnit
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from clang.cindex import TypeKind
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from .util import get_cursor
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from .util import get_cursors
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from .util import get_tu
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kInput = """\
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struct s0 {
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int a;
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int b;
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};
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struct s1;
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void f0(int a0, int a1) {
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int l0, l1;
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if (a0)
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return;
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for (;;) {
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break;
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}
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}
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"""
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kParentTest = """\
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class C {
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void f();
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}
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void C::f() { }
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"""
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kTemplateArgTest = """\
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template <int kInt, typename T, bool kBool>
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void foo();
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template<>
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void foo<-7, float, true>();
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"""
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class TestCursor(unittest.TestCase):
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def test_get_children(self):
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tu = get_tu(kInput)
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it = tu.cursor.get_children()
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tu_nodes = list(it)
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self.assertEqual(len(tu_nodes), 3)
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for cursor in tu_nodes:
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self.assertIsNotNone(cursor.translation_unit)
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self.assertNotEqual(tu_nodes[0], tu_nodes[1])
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self.assertEqual(tu_nodes[0].kind, CursorKind.STRUCT_DECL)
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self.assertEqual(tu_nodes[0].spelling, 's0')
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self.assertEqual(tu_nodes[0].is_definition(), True)
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self.assertEqual(tu_nodes[0].location.file.name, 't.c')
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self.assertEqual(tu_nodes[0].location.line, 1)
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self.assertEqual(tu_nodes[0].location.column, 8)
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self.assertGreater(tu_nodes[0].hash, 0)
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self.assertIsNotNone(tu_nodes[0].translation_unit)
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s0_nodes = list(tu_nodes[0].get_children())
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self.assertEqual(len(s0_nodes), 2)
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self.assertEqual(s0_nodes[0].kind, CursorKind.FIELD_DECL)
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self.assertEqual(s0_nodes[0].spelling, 'a')
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self.assertEqual(s0_nodes[0].type.kind, TypeKind.INT)
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self.assertEqual(s0_nodes[1].kind, CursorKind.FIELD_DECL)
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self.assertEqual(s0_nodes[1].spelling, 'b')
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self.assertEqual(s0_nodes[1].type.kind, TypeKind.INT)
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self.assertEqual(tu_nodes[1].kind, CursorKind.STRUCT_DECL)
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self.assertEqual(tu_nodes[1].spelling, 's1')
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self.assertEqual(tu_nodes[1].displayname, 's1')
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self.assertEqual(tu_nodes[1].is_definition(), False)
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self.assertEqual(tu_nodes[2].kind, CursorKind.FUNCTION_DECL)
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self.assertEqual(tu_nodes[2].spelling, 'f0')
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self.assertEqual(tu_nodes[2].displayname, 'f0(int, int)')
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self.assertEqual(tu_nodes[2].is_definition(), True)
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def test_references(self):
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"""Ensure that references to TranslationUnit are kept."""
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tu = get_tu('int x;')
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cursors = list(tu.cursor.get_children())
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self.assertGreater(len(cursors), 0)
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cursor = cursors[0]
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self.assertIsInstance(cursor.translation_unit, TranslationUnit)
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# Delete reference to TU and perform a full GC.
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del tu
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gc.collect()
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self.assertIsInstance(cursor.translation_unit, TranslationUnit)
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# If the TU was destroyed, this should cause a segfault.
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parent = cursor.semantic_parent
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def test_canonical(self):
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source = 'struct X; struct X; struct X { int member; };'
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tu = get_tu(source)
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cursors = []
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for cursor in tu.cursor.get_children():
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if cursor.spelling == 'X':
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cursors.append(cursor)
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self.assertEqual(len(cursors), 3)
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self.assertEqual(cursors[1].canonical, cursors[2].canonical)
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def test_is_const_method(self):
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"""Ensure Cursor.is_const_method works."""
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source = 'class X { void foo() const; void bar(); };'
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tu = get_tu(source, lang='cpp')
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cls = get_cursor(tu, 'X')
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foo = get_cursor(tu, 'foo')
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bar = get_cursor(tu, 'bar')
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self.assertIsNotNone(cls)
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self.assertIsNotNone(foo)
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self.assertIsNotNone(bar)
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self.assertTrue(foo.is_const_method())
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self.assertFalse(bar.is_const_method())
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def test_is_converting_constructor(self):
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"""Ensure Cursor.is_converting_constructor works."""
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source = 'class X { explicit X(int); X(double); X(); };'
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tu = get_tu(source, lang='cpp')
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xs = get_cursors(tu, 'X')
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self.assertEqual(len(xs), 4)
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self.assertEqual(xs[0].kind, CursorKind.CLASS_DECL)
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cs = xs[1:]
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self.assertEqual(cs[0].kind, CursorKind.CONSTRUCTOR)
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self.assertEqual(cs[1].kind, CursorKind.CONSTRUCTOR)
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self.assertEqual(cs[2].kind, CursorKind.CONSTRUCTOR)
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self.assertFalse(cs[0].is_converting_constructor())
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self.assertTrue(cs[1].is_converting_constructor())
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self.assertFalse(cs[2].is_converting_constructor())
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def test_is_copy_constructor(self):
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"""Ensure Cursor.is_copy_constructor works."""
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source = 'class X { X(); X(const X&); X(X&&); };'
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tu = get_tu(source, lang='cpp')
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xs = get_cursors(tu, 'X')
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self.assertEqual(xs[0].kind, CursorKind.CLASS_DECL)
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cs = xs[1:]
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self.assertEqual(cs[0].kind, CursorKind.CONSTRUCTOR)
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self.assertEqual(cs[1].kind, CursorKind.CONSTRUCTOR)
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self.assertEqual(cs[2].kind, CursorKind.CONSTRUCTOR)
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self.assertFalse(cs[0].is_copy_constructor())
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self.assertTrue(cs[1].is_copy_constructor())
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self.assertFalse(cs[2].is_copy_constructor())
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def test_is_default_constructor(self):
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"""Ensure Cursor.is_default_constructor works."""
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source = 'class X { X(); X(int); };'
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tu = get_tu(source, lang='cpp')
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xs = get_cursors(tu, 'X')
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self.assertEqual(xs[0].kind, CursorKind.CLASS_DECL)
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cs = xs[1:]
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self.assertEqual(cs[0].kind, CursorKind.CONSTRUCTOR)
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self.assertEqual(cs[1].kind, CursorKind.CONSTRUCTOR)
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self.assertTrue(cs[0].is_default_constructor())
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self.assertFalse(cs[1].is_default_constructor())
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def test_is_move_constructor(self):
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"""Ensure Cursor.is_move_constructor works."""
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source = 'class X { X(); X(const X&); X(X&&); };'
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tu = get_tu(source, lang='cpp')
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xs = get_cursors(tu, 'X')
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self.assertEqual(xs[0].kind, CursorKind.CLASS_DECL)
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cs = xs[1:]
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self.assertEqual(cs[0].kind, CursorKind.CONSTRUCTOR)
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self.assertEqual(cs[1].kind, CursorKind.CONSTRUCTOR)
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self.assertEqual(cs[2].kind, CursorKind.CONSTRUCTOR)
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self.assertFalse(cs[0].is_move_constructor())
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self.assertFalse(cs[1].is_move_constructor())
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self.assertTrue(cs[2].is_move_constructor())
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def test_is_default_method(self):
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"""Ensure Cursor.is_default_method works."""
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source = 'class X { X() = default; }; class Y { Y(); };'
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tu = get_tu(source, lang='cpp')
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xs = get_cursors(tu, 'X')
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ys = get_cursors(tu, 'Y')
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self.assertEqual(len(xs), 2)
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self.assertEqual(len(ys), 2)
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xc = xs[1]
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yc = ys[1]
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self.assertTrue(xc.is_default_method())
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self.assertFalse(yc.is_default_method())
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def test_is_mutable_field(self):
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"""Ensure Cursor.is_mutable_field works."""
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source = 'class X { int x_; mutable int y_; };'
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tu = get_tu(source, lang='cpp')
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cls = get_cursor(tu, 'X')
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x_ = get_cursor(tu, 'x_')
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y_ = get_cursor(tu, 'y_')
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self.assertIsNotNone(cls)
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self.assertIsNotNone(x_)
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self.assertIsNotNone(y_)
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self.assertFalse(x_.is_mutable_field())
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self.assertTrue(y_.is_mutable_field())
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def test_is_static_method(self):
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"""Ensure Cursor.is_static_method works."""
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source = 'class X { static void foo(); void bar(); };'
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tu = get_tu(source, lang='cpp')
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cls = get_cursor(tu, 'X')
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foo = get_cursor(tu, 'foo')
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bar = get_cursor(tu, 'bar')
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self.assertIsNotNone(cls)
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self.assertIsNotNone(foo)
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self.assertIsNotNone(bar)
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self.assertTrue(foo.is_static_method())
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self.assertFalse(bar.is_static_method())
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def test_is_pure_virtual_method(self):
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"""Ensure Cursor.is_pure_virtual_method works."""
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source = 'class X { virtual void foo() = 0; virtual void bar(); };'
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tu = get_tu(source, lang='cpp')
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cls = get_cursor(tu, 'X')
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foo = get_cursor(tu, 'foo')
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bar = get_cursor(tu, 'bar')
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self.assertIsNotNone(cls)
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self.assertIsNotNone(foo)
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self.assertIsNotNone(bar)
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self.assertTrue(foo.is_pure_virtual_method())
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self.assertFalse(bar.is_pure_virtual_method())
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def test_is_virtual_method(self):
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"""Ensure Cursor.is_virtual_method works."""
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source = 'class X { virtual void foo(); void bar(); };'
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tu = get_tu(source, lang='cpp')
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cls = get_cursor(tu, 'X')
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foo = get_cursor(tu, 'foo')
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bar = get_cursor(tu, 'bar')
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self.assertIsNotNone(cls)
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self.assertIsNotNone(foo)
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self.assertIsNotNone(bar)
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self.assertTrue(foo.is_virtual_method())
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self.assertFalse(bar.is_virtual_method())
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def test_is_abstract_record(self):
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"""Ensure Cursor.is_abstract_record works."""
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source = 'struct X { virtual void x() = 0; }; struct Y : X { void x(); };'
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tu = get_tu(source, lang='cpp')
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cls = get_cursor(tu, 'X')
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self.assertTrue(cls.is_abstract_record())
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cls = get_cursor(tu, 'Y')
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self.assertFalse(cls.is_abstract_record())
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def test_is_scoped_enum(self):
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"""Ensure Cursor.is_scoped_enum works."""
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source = 'class X {}; enum RegularEnum {}; enum class ScopedEnum {};'
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tu = get_tu(source, lang='cpp')
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cls = get_cursor(tu, 'X')
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regular_enum = get_cursor(tu, 'RegularEnum')
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scoped_enum = get_cursor(tu, 'ScopedEnum')
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self.assertIsNotNone(cls)
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self.assertIsNotNone(regular_enum)
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self.assertIsNotNone(scoped_enum)
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self.assertFalse(cls.is_scoped_enum())
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self.assertFalse(regular_enum.is_scoped_enum())
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self.assertTrue(scoped_enum.is_scoped_enum())
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def test_underlying_type(self):
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tu = get_tu('typedef int foo;')
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typedef = get_cursor(tu, 'foo')
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self.assertIsNotNone(typedef)
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self.assertTrue(typedef.kind.is_declaration())
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underlying = typedef.underlying_typedef_type
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self.assertEqual(underlying.kind, TypeKind.INT)
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def test_semantic_parent(self):
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tu = get_tu(kParentTest, 'cpp')
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curs = get_cursors(tu, 'f')
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decl = get_cursor(tu, 'C')
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self.assertEqual(len(curs), 2)
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self.assertEqual(curs[0].semantic_parent, curs[1].semantic_parent)
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self.assertEqual(curs[0].semantic_parent, decl)
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def test_lexical_parent(self):
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tu = get_tu(kParentTest, 'cpp')
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curs = get_cursors(tu, 'f')
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decl = get_cursor(tu, 'C')
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self.assertEqual(len(curs), 2)
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self.assertNotEqual(curs[0].lexical_parent, curs[1].lexical_parent)
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self.assertEqual(curs[0].lexical_parent, decl)
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self.assertEqual(curs[1].lexical_parent, tu.cursor)
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def test_enum_type(self):
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tu = get_tu('enum TEST { FOO=1, BAR=2 };')
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enum = get_cursor(tu, 'TEST')
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self.assertIsNotNone(enum)
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self.assertEqual(enum.kind, CursorKind.ENUM_DECL)
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enum_type = enum.enum_type
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self.assertIn(enum_type.kind, (TypeKind.UINT, TypeKind.INT))
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def test_enum_type_cpp(self):
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tu = get_tu('enum TEST : long long { FOO=1, BAR=2 };', lang="cpp")
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enum = get_cursor(tu, 'TEST')
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self.assertIsNotNone(enum)
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self.assertEqual(enum.kind, CursorKind.ENUM_DECL)
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self.assertEqual(enum.enum_type.kind, TypeKind.LONGLONG)
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def test_objc_type_encoding(self):
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tu = get_tu('int i;', lang='objc')
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i = get_cursor(tu, 'i')
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self.assertIsNotNone(i)
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self.assertEqual(i.objc_type_encoding, 'i')
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def test_enum_values(self):
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tu = get_tu('enum TEST { SPAM=1, EGG, HAM = EGG * 20};')
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enum = get_cursor(tu, 'TEST')
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self.assertIsNotNone(enum)
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self.assertEqual(enum.kind, CursorKind.ENUM_DECL)
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enum_constants = list(enum.get_children())
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self.assertEqual(len(enum_constants), 3)
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spam, egg, ham = enum_constants
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self.assertEqual(spam.kind, CursorKind.ENUM_CONSTANT_DECL)
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self.assertEqual(spam.enum_value, 1)
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self.assertEqual(egg.kind, CursorKind.ENUM_CONSTANT_DECL)
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self.assertEqual(egg.enum_value, 2)
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self.assertEqual(ham.kind, CursorKind.ENUM_CONSTANT_DECL)
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self.assertEqual(ham.enum_value, 40)
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def test_enum_values_cpp(self):
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tu = get_tu('enum TEST : long long { SPAM = -1, HAM = 0x10000000000};', lang="cpp")
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enum = get_cursor(tu, 'TEST')
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self.assertIsNotNone(enum)
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self.assertEqual(enum.kind, CursorKind.ENUM_DECL)
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enum_constants = list(enum.get_children())
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self.assertEqual(len(enum_constants), 2)
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spam, ham = enum_constants
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self.assertEqual(spam.kind, CursorKind.ENUM_CONSTANT_DECL)
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self.assertEqual(spam.enum_value, -1)
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self.assertEqual(ham.kind, CursorKind.ENUM_CONSTANT_DECL)
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self.assertEqual(ham.enum_value, 0x10000000000)
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def test_annotation_attribute(self):
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tu = get_tu('int foo (void) __attribute__ ((annotate("here be annotation attribute")));')
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foo = get_cursor(tu, 'foo')
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self.assertIsNotNone(foo)
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for c in foo.get_children():
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if c.kind == CursorKind.ANNOTATE_ATTR:
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self.assertEqual(c.displayname, "here be annotation attribute")
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break
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else:
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self.fail("Couldn't find annotation")
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def test_annotation_template(self):
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annotation = '__attribute__ ((annotate("annotation")))'
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for source, kind in [
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('int foo (T value) %s;', CursorKind.FUNCTION_TEMPLATE),
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('class %s foo {};', CursorKind.CLASS_TEMPLATE),
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]:
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source = 'template<typename T> ' + (source % annotation)
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tu = get_tu(source, lang="cpp")
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foo = get_cursor(tu, 'foo')
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self.assertIsNotNone(foo)
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self.assertEqual(foo.kind, kind)
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for c in foo.get_children():
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if c.kind == CursorKind.ANNOTATE_ATTR:
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self.assertEqual(c.displayname, "annotation")
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break
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else:
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self.fail("Couldn't find annotation for {}".format(kind))
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def test_result_type(self):
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tu = get_tu('int foo();')
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foo = get_cursor(tu, 'foo')
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self.assertIsNotNone(foo)
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t = foo.result_type
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self.assertEqual(t.kind, TypeKind.INT)
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def test_result_type_objc_method_decl(self):
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code = """\
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@interface Interface : NSObject
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-(void)voidMethod;
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@end
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"""
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tu = get_tu(code, lang='objc')
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cursor = get_cursor(tu, 'voidMethod')
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result_type = cursor.result_type
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self.assertEqual(cursor.kind, CursorKind.OBJC_INSTANCE_METHOD_DECL)
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self.assertEqual(result_type.kind, TypeKind.VOID)
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def test_availability(self):
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tu = get_tu('class A { A(A const&) = delete; };', lang='cpp')
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# AvailabilityKind.AVAILABLE
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cursor = get_cursor(tu, 'A')
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self.assertEqual(cursor.kind, CursorKind.CLASS_DECL)
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self.assertEqual(cursor.availability, AvailabilityKind.AVAILABLE)
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# AvailabilityKind.NOT_AVAILABLE
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cursors = get_cursors(tu, 'A')
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for c in cursors:
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if c.kind == CursorKind.CONSTRUCTOR:
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self.assertEqual(c.availability, AvailabilityKind.NOT_AVAILABLE)
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break
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else:
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self.fail("Could not find cursor for deleted constructor")
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# AvailabilityKind.DEPRECATED
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tu = get_tu('void test() __attribute__((deprecated));', lang='cpp')
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cursor = get_cursor(tu, 'test')
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self.assertEqual(cursor.availability, AvailabilityKind.DEPRECATED)
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# AvailabilityKind.NOT_ACCESSIBLE is only used in the code completion results
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def test_get_tokens(self):
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"""Ensure we can map cursors back to tokens."""
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tu = get_tu('int foo(int i);')
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foo = get_cursor(tu, 'foo')
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tokens = list(foo.get_tokens())
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self.assertEqual(len(tokens), 6)
|
|
self.assertEqual(tokens[0].spelling, 'int')
|
|
self.assertEqual(tokens[1].spelling, 'foo')
|
|
|
|
def test_get_token_cursor(self):
|
|
"""Ensure we can map tokens to cursors."""
|
|
tu = get_tu('class A {}; int foo(A var = A());', lang='cpp')
|
|
foo = get_cursor(tu, 'foo')
|
|
|
|
for cursor in foo.walk_preorder():
|
|
if cursor.kind.is_expression() and not cursor.kind.is_statement():
|
|
break
|
|
else:
|
|
self.fail("Could not find default value expression")
|
|
|
|
tokens = list(cursor.get_tokens())
|
|
self.assertEqual(len(tokens), 4, [t.spelling for t in tokens])
|
|
self.assertEqual(tokens[0].spelling, '=')
|
|
self.assertEqual(tokens[1].spelling, 'A')
|
|
self.assertEqual(tokens[2].spelling, '(')
|
|
self.assertEqual(tokens[3].spelling, ')')
|
|
t_cursor = tokens[1].cursor
|
|
self.assertEqual(t_cursor.kind, CursorKind.TYPE_REF)
|
|
r_cursor = t_cursor.referenced # should not raise an exception
|
|
self.assertEqual(r_cursor.kind, CursorKind.CLASS_DECL)
|
|
|
|
def test_get_arguments(self):
|
|
tu = get_tu('void foo(int i, int j);')
|
|
foo = get_cursor(tu, 'foo')
|
|
arguments = list(foo.get_arguments())
|
|
|
|
self.assertEqual(len(arguments), 2)
|
|
self.assertEqual(arguments[0].spelling, "i")
|
|
self.assertEqual(arguments[1].spelling, "j")
|
|
|
|
def test_get_num_template_arguments(self):
|
|
tu = get_tu(kTemplateArgTest, lang='cpp')
|
|
foos = get_cursors(tu, 'foo')
|
|
|
|
self.assertEqual(foos[1].get_num_template_arguments(), 3)
|
|
|
|
def test_get_template_argument_kind(self):
|
|
tu = get_tu(kTemplateArgTest, lang='cpp')
|
|
foos = get_cursors(tu, 'foo')
|
|
|
|
self.assertEqual(foos[1].get_template_argument_kind(0), TemplateArgumentKind.INTEGRAL)
|
|
self.assertEqual(foos[1].get_template_argument_kind(1), TemplateArgumentKind.TYPE)
|
|
self.assertEqual(foos[1].get_template_argument_kind(2), TemplateArgumentKind.INTEGRAL)
|
|
|
|
def test_get_template_argument_type(self):
|
|
tu = get_tu(kTemplateArgTest, lang='cpp')
|
|
foos = get_cursors(tu, 'foo')
|
|
|
|
self.assertEqual(foos[1].get_template_argument_type(1).kind, TypeKind.FLOAT)
|
|
|
|
def test_get_template_argument_value(self):
|
|
tu = get_tu(kTemplateArgTest, lang='cpp')
|
|
foos = get_cursors(tu, 'foo')
|
|
|
|
self.assertEqual(foos[1].get_template_argument_value(0), -7)
|
|
self.assertEqual(foos[1].get_template_argument_value(2), True)
|
|
|
|
def test_get_template_argument_unsigned_value(self):
|
|
tu = get_tu(kTemplateArgTest, lang='cpp')
|
|
foos = get_cursors(tu, 'foo')
|
|
|
|
self.assertEqual(foos[1].get_template_argument_unsigned_value(0), 2 ** 32 - 7)
|
|
self.assertEqual(foos[1].get_template_argument_unsigned_value(2), True)
|
|
|
|
def test_referenced(self):
|
|
tu = get_tu('void foo(); void bar() { foo(); }')
|
|
foo = get_cursor(tu, 'foo')
|
|
bar = get_cursor(tu, 'bar')
|
|
for c in bar.get_children():
|
|
if c.kind == CursorKind.CALL_EXPR:
|
|
self.assertEqual(c.referenced.spelling, foo.spelling)
|
|
break
|
|
|
|
def test_mangled_name(self):
|
|
kInputForMangling = """\
|
|
int foo(int, int);
|
|
"""
|
|
tu = get_tu(kInputForMangling, lang='cpp')
|
|
foo = get_cursor(tu, 'foo')
|
|
|
|
# Since libclang does not link in targets, we cannot pass a triple to it
|
|
# and force the target. To enable this test to pass on all platforms, accept
|
|
# all valid manglings.
|
|
# [c-index-test handles this by running the source through clang, emitting
|
|
# an AST file and running libclang on that AST file]
|
|
self.assertIn(foo.mangled_name, ('_Z3fooii', '__Z3fooii', '?foo@@YAHHH', '?foo@@YAHHH@Z'))
|