def testValidDefaultValues(self):
"""Tests default values that are valid (to the parser)."""
source = """\
struct MyStruct {
int16 a0 = 0;
uint16 a1 = 0x0;
uint16 a2 = 0x00;
uint16 a3 = 0x01;
uint16 a4 = 0xcd;
int32 a5 = 12345;
int64 a6 = -12345;
int64 a7 = +12345;
uint32 a8 = 0x12cd3;
uint32 a9 = -0x12cD3;
uint32 a10 = +0x12CD3;
bool a11 = true;
bool a12 = false;
float a13 = 1.2345;
float a14 = -1.2345;
float a15 = +1.2345;
float a16 = 123.;
float a17 = .123;
double a18 = 1.23E10;
double a19 = 1.E-10;
double a20 = .5E+10;
double a21 = -1.23E10;
double a22 = +.123E10;
};
"""
expected = ast.Mojom(
None,
ast.ImportList(),
[ast.Struct(
'MyStruct',
None,
ast.StructBody(
[ast.StructField('a0', None, None, 'int16', '0'),
ast.StructField('a1', None, None, 'uint16', '0x0'),
ast.StructField('a2', None, None, 'uint16', '0x00'),
ast.StructField('a3', None, None, 'uint16', '0x01'),
ast.StructField('a4', None, None, 'uint16', '0xcd'),
ast.StructField('a5' , None, None, 'int32', '12345'),
ast.StructField('a6', None, None, 'int64', '-12345'),
ast.StructField('a7', None, None, 'int64', '+12345'),
ast.StructField('a8', None, None, 'uint32', '0x12cd3'),
ast.StructField('a9', None, None, 'uint32', '-0x12cD3'),
ast.StructField('a10', None, None, 'uint32', '+0x12CD3'),
ast.StructField('a11', None, None, 'bool', 'true'),
ast.StructField('a12', None, None, 'bool', 'false'),
ast.StructField('a13', None, None, 'float', '1.2345'),
ast.StructField('a14', None, None, 'float', '-1.2345'),
ast.StructField('a15', None, None, 'float', '+1.2345'),
ast.StructField('a16', None, None, 'float', '123.'),
ast.StructField('a17', None, None, 'float', '.123'),
ast.StructField('a18', None, None, 'double', '1.23E10'),
ast.StructField('a19', None, None, 'double', '1.E-10'),
ast.StructField('a20', None, None, 'double', '.5E+10'),
ast.StructField('a21', None, None, 'double', '-1.23E10'),
ast.StructField('a22', None, None, 'double', '+.123E10')]))])
self.assertEquals(parser.Parse(source, "my_file.mojom"), expected)
def p_struct_2(self, p): """struct : attribute_section STRUCT NAME SEMI""" p[0] = ast.Struct(p[3], p[1], None)
def testValidAttributes(self):
"""Tests parsing attributes (and attribute lists)."""
# Note: We use structs because they have (optional) attribute lists.
# Empty attribute list.
source1 = "[] struct MyStruct {};"
expected1 = ast.Mojom(
None,
ast.ImportList(),
[ast.Struct('MyStruct', ast.AttributeList(), ast.StructBody())])
self.assertEquals(parser.Parse(source1, "my_file.mojom"), expected1)
# One-element attribute list, with name value.
source2 = "[MyAttribute=MyName] struct MyStruct {};"
expected2 = ast.Mojom(
None,
ast.ImportList(),
[ast.Struct(
'MyStruct',
ast.AttributeList(ast.Attribute("MyAttribute", "MyName")),
ast.StructBody())])
self.assertEquals(parser.Parse(source2, "my_file.mojom"), expected2)
# Two-element attribute list, with one string value and one integer value.
source3 = "[MyAttribute1 = \"hello\", MyAttribute2 = 5] struct MyStruct {};"
expected3 = ast.Mojom(
None,
ast.ImportList(),
[ast.Struct(
'MyStruct',
ast.AttributeList([ast.Attribute("MyAttribute1", "hello"),
ast.Attribute("MyAttribute2", 5)]),
ast.StructBody())])
self.assertEquals(parser.Parse(source3, "my_file.mojom"), expected3)
# Various places that attribute list is allowed.
source4 = """\
[Attr0=0] module my_module;
[Attr1=1] import "my_import";
[Attr2=2] struct MyStruct {
[Attr3=3] int32 a;
};
[Attr4=4] union MyUnion {
[Attr5=5] int32 a;
};
[Attr6=6] enum MyEnum {
[Attr7=7] a
};
[Attr8=8] interface MyInterface {
[Attr9=9] MyMethod([Attr10=10] int32 a) => ([Attr11=11] bool b);
};
[Attr12=12] const double kMyConst = 1.23;
"""
expected4 = ast.Mojom(
ast.Module(('IDENTIFIER', 'my_module'),
ast.AttributeList([ast.Attribute("Attr0", 0)])),
ast.ImportList(ast.Import(
ast.AttributeList([ast.Attribute("Attr1", 1)]),
"my_import")),
[ast.Struct(
'MyStruct',
ast.AttributeList(ast.Attribute("Attr2", 2)),
ast.StructBody(
ast.StructField(
'a', ast.AttributeList([ast.Attribute("Attr3", 3)]),
None, 'int32', None))),
ast.Union(
'MyUnion',
ast.AttributeList(ast.Attribute("Attr4", 4)),
ast.UnionBody(
ast.UnionField(
'a', ast.AttributeList([ast.Attribute("Attr5", 5)]), None,
'int32'))),
ast.Enum(
'MyEnum',
ast.AttributeList(ast.Attribute("Attr6", 6)),
ast.EnumValueList(
ast.EnumValue(
'VALUE', ast.AttributeList([ast.Attribute("Attr7", 7)]),
None))),
ast.Interface(
'MyInterface',
ast.AttributeList(ast.Attribute("Attr8", 8)),
ast.InterfaceBody(
ast.Method(
'MyMethod',
ast.AttributeList(ast.Attribute("Attr9", 9)),
None,
ast.ParameterList(
ast.Parameter(
'a',
ast.AttributeList([ast.Attribute("Attr10", 10)]),
None, 'int32')),
ast.ParameterList(
ast.Parameter(
'b',
ast.AttributeList([ast.Attribute("Attr11", 11)]),
None, 'bool'))))),
ast.Const(
'kMyConst',
ast.AttributeList(ast.Attribute("Attr12", 12)),
'double', '1.23')])
self.assertEquals(parser.Parse(source4, "my_file.mojom"), expected4)
def p_struct_1(self, p): """struct : attribute_section STRUCT NAME LBRACE struct_body RBRACE SEMI""" p[0] = ast.Struct(p[3], p[1], p[5])