1""" 2Test importing the 'std' C++ module and evaluate expressions with it. 3""" 4 5from lldbsuite.test.decorators import * 6from lldbsuite.test.lldbtest import * 7from lldbsuite.test import lldbutil 8 9 10class ImportStdModule(TestBase): 11 @add_test_categories(["libc++"]) 12 @skipIf(compiler=no_match("clang")) 13 def test(self): 14 self.build() 15 16 lldbutil.run_to_source_breakpoint( 17 self, "// Set break point at this line.", lldb.SBFileSpec("main.cpp") 18 ) 19 20 # Activate importing of std module. 21 self.runCmd("settings set target.import-std-module true") 22 # Calling some normal std functions that return non-template types. 23 self.expect_expr("std::abs(-42)", result_type="int", result_value="42") 24 self.expect_expr( 25 "std::minmax<int>(1, 2).first", result_type="const int", result_value="1" 26 ) 27 self.expect_expr("std::div(2, 1).quot", result_type="int", result_value="2") 28 # Using types from std. 29 self.expect_expr( 30 "(std::size_t)33U", result_type="std::size_t", result_value="33" 31 ) 32 # Calling templated functions that return non-template types. 33 self.expect_expr( 34 "char char_a = 'b'; char char_b = 'a'; std::swap(char_a, char_b); char_a", 35 result_type="char", 36 result_value="'a'", 37 ) 38 39 @add_test_categories(["libc++"]) 40 @skipIf(compiler=no_match("clang")) 41 def test_non_cpp_language(self): 42 self.build() 43 44 lldbutil.run_to_source_breakpoint( 45 self, "// Set break point at this line.", lldb.SBFileSpec("main.cpp") 46 ) 47 48 # Activate importing of std module. 49 self.runCmd("settings set target.import-std-module true") 50 # These languages don't support C++ modules, so they shouldn't 51 # be able to evaluate the expression. 52 self.expect("expr -l C -- std::minmax<int>(1, 2).first", error=True) 53 self.expect("expr -l C99 -- std::minmax<int>(1, 2).first", error=True) 54 self.expect("expr -l C11 -- std::minmax<int>(1, 2).first", error=True) 55 self.expect("expr -l ObjC -- std::minmax<int>(1, 2).first", error=True) 56