455 lines
13 KiB
Python
455 lines
13 KiB
Python
import ctypes
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import gc
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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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def test_get_children():
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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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assert len(tu_nodes) == 3
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for cursor in tu_nodes:
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assert cursor.translation_unit is not None
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assert tu_nodes[0] != tu_nodes[1]
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assert tu_nodes[0].kind == CursorKind.STRUCT_DECL
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assert tu_nodes[0].spelling == 's0'
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assert tu_nodes[0].is_definition() == True
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assert tu_nodes[0].location.file.name == 't.c'
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assert tu_nodes[0].location.line == 1
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assert tu_nodes[0].location.column == 8
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assert tu_nodes[0].hash > 0
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assert tu_nodes[0].translation_unit is not None
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s0_nodes = list(tu_nodes[0].get_children())
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assert len(s0_nodes) == 2
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assert s0_nodes[0].kind == CursorKind.FIELD_DECL
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assert s0_nodes[0].spelling == 'a'
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assert s0_nodes[0].type.kind == TypeKind.INT
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assert s0_nodes[1].kind == CursorKind.FIELD_DECL
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assert s0_nodes[1].spelling == 'b'
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assert s0_nodes[1].type.kind == TypeKind.INT
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assert tu_nodes[1].kind == CursorKind.STRUCT_DECL
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assert tu_nodes[1].spelling == 's1'
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assert tu_nodes[1].displayname == 's1'
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assert tu_nodes[1].is_definition() == False
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assert tu_nodes[2].kind == CursorKind.FUNCTION_DECL
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assert tu_nodes[2].spelling == 'f0'
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assert tu_nodes[2].displayname == 'f0(int, int)'
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assert tu_nodes[2].is_definition() == True
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def test_references():
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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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assert len(cursors) > 0
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cursor = cursors[0]
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assert isinstance(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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assert isinstance(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():
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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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assert len(cursors) == 3
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assert cursors[1].canonical == cursors[2].canonical
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def test_is_const_method():
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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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assert cls is not None
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assert foo is not None
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assert bar is not None
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assert foo.is_const_method()
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assert not bar.is_const_method()
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def test_is_converting_constructor():
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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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assert len(xs) == 4
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assert xs[0].kind == CursorKind.CLASS_DECL
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cs = xs[1:]
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assert cs[0].kind == CursorKind.CONSTRUCTOR
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assert cs[1].kind == CursorKind.CONSTRUCTOR
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assert cs[2].kind == CursorKind.CONSTRUCTOR
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assert not cs[0].is_converting_constructor()
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assert cs[1].is_converting_constructor()
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assert not cs[2].is_converting_constructor()
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def test_is_copy_constructor():
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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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assert xs[0].kind == CursorKind.CLASS_DECL
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cs = xs[1:]
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assert cs[0].kind == CursorKind.CONSTRUCTOR
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assert cs[1].kind == CursorKind.CONSTRUCTOR
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assert cs[2].kind == CursorKind.CONSTRUCTOR
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assert not cs[0].is_copy_constructor()
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assert cs[1].is_copy_constructor()
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assert not cs[2].is_copy_constructor()
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def test_is_default_constructor():
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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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assert xs[0].kind == CursorKind.CLASS_DECL
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cs = xs[1:]
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assert cs[0].kind == CursorKind.CONSTRUCTOR
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assert cs[1].kind == CursorKind.CONSTRUCTOR
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assert cs[0].is_default_constructor()
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assert not cs[1].is_default_constructor()
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def test_is_move_constructor():
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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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assert xs[0].kind == CursorKind.CLASS_DECL
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cs = xs[1:]
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assert cs[0].kind == CursorKind.CONSTRUCTOR
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assert cs[1].kind == CursorKind.CONSTRUCTOR
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assert cs[2].kind == CursorKind.CONSTRUCTOR
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assert not cs[0].is_move_constructor()
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assert not cs[1].is_move_constructor()
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assert cs[2].is_move_constructor()
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def test_is_default_method():
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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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assert len(xs) == 2
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assert len(ys) == 2
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xc = xs[1]
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yc = ys[1]
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assert xc.is_default_method()
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assert not yc.is_default_method()
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def test_is_mutable_field():
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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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assert cls is not None
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assert x_ is not None
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assert y_ is not None
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assert not x_.is_mutable_field()
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assert y_.is_mutable_field()
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def test_is_static_method():
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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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assert cls is not None
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assert foo is not None
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assert bar is not None
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assert foo.is_static_method()
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assert not bar.is_static_method()
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def test_is_pure_virtual_method():
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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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assert cls is not None
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assert foo is not None
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assert bar is not None
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assert foo.is_pure_virtual_method()
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assert not bar.is_pure_virtual_method()
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def test_is_virtual_method():
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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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assert cls is not None
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assert foo is not None
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assert bar is not None
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assert foo.is_virtual_method()
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assert not bar.is_virtual_method()
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def test_underlying_type():
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tu = get_tu('typedef int foo;')
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typedef = get_cursor(tu, 'foo')
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assert typedef is not None
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assert typedef.kind.is_declaration()
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underlying = typedef.underlying_typedef_type
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assert underlying.kind == TypeKind.INT
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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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def test_semantic_parent():
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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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assert(len(curs) == 2)
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assert(curs[0].semantic_parent == curs[1].semantic_parent)
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assert(curs[0].semantic_parent == decl)
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def test_lexical_parent():
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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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assert(len(curs) == 2)
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assert(curs[0].lexical_parent != curs[1].lexical_parent)
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assert(curs[0].lexical_parent == decl)
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assert(curs[1].lexical_parent == tu.cursor)
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def test_enum_type():
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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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assert enum is not None
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assert enum.kind == CursorKind.ENUM_DECL
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enum_type = enum.enum_type
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assert enum_type.kind == TypeKind.UINT
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def test_enum_type_cpp():
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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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assert enum is not None
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assert enum.kind == CursorKind.ENUM_DECL
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assert enum.enum_type.kind == TypeKind.LONGLONG
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def test_objc_type_encoding():
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tu = get_tu('int i;', lang='objc')
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i = get_cursor(tu, 'i')
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assert i is not None
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assert i.objc_type_encoding == 'i'
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def test_enum_values():
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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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assert enum is not None
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assert enum.kind == CursorKind.ENUM_DECL
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enum_constants = list(enum.get_children())
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assert len(enum_constants) == 3
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spam, egg, ham = enum_constants
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assert spam.kind == CursorKind.ENUM_CONSTANT_DECL
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assert spam.enum_value == 1
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assert egg.kind == CursorKind.ENUM_CONSTANT_DECL
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assert egg.enum_value == 2
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assert ham.kind == CursorKind.ENUM_CONSTANT_DECL
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assert ham.enum_value == 40
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def test_enum_values_cpp():
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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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assert enum is not None
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assert enum.kind == CursorKind.ENUM_DECL
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enum_constants = list(enum.get_children())
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assert len(enum_constants) == 2
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spam, ham = enum_constants
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assert spam.kind == CursorKind.ENUM_CONSTANT_DECL
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assert spam.enum_value == -1
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assert ham.kind == CursorKind.ENUM_CONSTANT_DECL
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assert ham.enum_value == 0x10000000000
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def test_annotation_attribute():
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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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assert foo is not None
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for c in foo.get_children():
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if c.kind == CursorKind.ANNOTATE_ATTR:
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assert c.displayname == "here be annotation attribute"
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break
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else:
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assert False, "Couldn't find annotation"
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def test_result_type():
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tu = get_tu('int foo();')
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foo = get_cursor(tu, 'foo')
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assert foo is not None
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t = foo.result_type
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assert t.kind == TypeKind.INT
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def test_get_tokens():
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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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assert len(tokens) == 6
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assert tokens[0].spelling == 'int'
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assert tokens[1].spelling == 'foo'
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def test_get_arguments():
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tu = get_tu('void foo(int i, int j);')
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foo = get_cursor(tu, 'foo')
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arguments = list(foo.get_arguments())
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assert len(arguments) == 2
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assert arguments[0].spelling == "i"
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assert arguments[1].spelling == "j"
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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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def test_get_num_template_arguments():
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tu = get_tu(kTemplateArgTest, lang='cpp')
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foos = get_cursors(tu, 'foo')
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assert foos[1].get_num_template_arguments() == 3
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def test_get_template_argument_kind():
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tu = get_tu(kTemplateArgTest, lang='cpp')
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foos = get_cursors(tu, 'foo')
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assert foos[1].get_template_argument_kind(0) == TemplateArgumentKind.INTEGRAL
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assert foos[1].get_template_argument_kind(1) == TemplateArgumentKind.TYPE
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assert foos[1].get_template_argument_kind(2) == TemplateArgumentKind.INTEGRAL
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def test_get_template_argument_type():
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tu = get_tu(kTemplateArgTest, lang='cpp')
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foos = get_cursors(tu, 'foo')
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assert foos[1].get_template_argument_type(1).kind == TypeKind.FLOAT
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def test_get_template_argument_value():
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tu = get_tu(kTemplateArgTest, lang='cpp')
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foos = get_cursors(tu, 'foo')
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assert foos[1].get_template_argument_value(0) == -7
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assert foos[1].get_template_argument_value(2) == True
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def test_get_template_argument_unsigned_value():
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tu = get_tu(kTemplateArgTest, lang='cpp')
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foos = get_cursors(tu, 'foo')
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assert foos[1].get_template_argument_unsigned_value(0) == 2 ** 32 - 7
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assert foos[1].get_template_argument_unsigned_value(2) == True
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def test_referenced():
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tu = get_tu('void foo(); void bar() { foo(); }')
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foo = get_cursor(tu, 'foo')
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bar = get_cursor(tu, 'bar')
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for c in bar.get_children():
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if c.kind == CursorKind.CALL_EXPR:
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assert c.referenced.spelling == foo.spelling
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break
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def test_mangled_name():
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kInputForMangling = """\
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int foo(int, int);
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"""
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tu = get_tu(kInputForMangling, lang='cpp')
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foo = get_cursor(tu, 'foo')
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# Since libclang does not link in targets, we cannot pass a triple to it
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# and force the target. To enable this test to pass on all platforms, accept
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# all valid manglings.
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# [c-index-test handles this by running the source through clang, emitting
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# an AST file and running libclang on that AST file]
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assert foo.mangled_name in ('_Z3fooii', '__Z3fooii', '?foo@@YAHHH')
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