def test_conditional(self): scope = model.Scope() scope["a"] = model.Number(10) cond = model.Conditional( model.BinaryOperation(model.Number(4), ">", model.Number(3)), [ model.Assign( "x", model.BinaryOperation(model.Number(3), "-", model.Number(5))), model.Assign( "y", model.BinaryOperation(model.Number(5), "*", model.Number(5))) ], [ model.Assign( "x", model.BinaryOperation(model.Reference("a"), "*", model.Number(0))) ]) folder = ConstantFolder() tree = folder.visit(cond) assert (isinstance(tree, model.Conditional) and tree.condition.value > 0 and isinstance(tree.if_true[0], model.Assign) and tree.if_true[0].value.value == -2 and isinstance(tree.if_true[1], model.Assign) and tree.if_true[1].value.value == 25 and len(tree.if_true) == 2 and len(tree.if_false) == 1 and isinstance(tree.if_false[0], model.Assign) and tree.if_false[0].value.value == 0)
def parse_if(self): self.ensure_token('if') self.ensure_token('(') condition = self.parse_expression() self.ensure_token(')') if_body = self.parse_block() else_body = None if self.peek_token().value == 'else': self.drop_tokens() else_body = self.parse_block() return model.Conditional(condition, if_body, else_body)
def mytest(): printer = PrettyPrinter() cond2 = model.Conditional(model.Number(30), [model.Number(10)], [model.Number(20)]) cond = model.Conditional( model.Number(42), [model.Number(1), cond2, model.Number(3)], [model.Number(4), model.Number(5)]) cond3 = model.Conditional(model.Number(228), [], []) func2 = model.Function(('p111', 'p222'), [ model.Reference("x"), model.Print(model.Reference("p111")), model.Read("myVar") ]) fd2 = model.FunctionDefinition("anotherPrettyFunc", func2) func = model.Function( (), [model.UnaryOperation("-", model.Number(100000000)), fd2, cond, cond3]) fd = model.FunctionDefinition("myPrettyFunc", func) printer.visit(fd) asd = model.BinaryOperation( model.BinaryOperation(model.Number(123), "+", model.Reference("xx")), "*", model.UnaryOperation( "-", model.BinaryOperation(model.Reference("xx"), "+", model.Reference("yy")))) printer.visit(asd) asd2 = model.BinaryOperation( model.BinaryOperation(model.Number(123), "/", model.Reference("xx")), "/", model.BinaryOperation( model.BinaryOperation(model.Reference("xx"), "/", model.Reference("yy")), "/", model.BinaryOperation(model.Number(123), "/", model.Reference("yy")))) printer.visit(asd2) printer.visit(model.FunctionCall(model.Reference("func"), [asd, asd2])) cond4 = model.Conditional(model.Number(228), []) printer.visit(cond4)
def test_mixed_conditional(self): scope = model.Scope() scope["a"] = model.Number(-10) scope["b"] = model.Number(5) scope["c"] = model.Number(10) """ if not (a == c) and b < c: print(a) """ conditional = model.Conditional( model.BinaryOperation( model.UnaryOperation( "!", model.BinaryOperation(model.Reference("a"), "==", model.Reference("c"))), "&&", model.BinaryOperation(model.Reference("b"), "<", model.Number(42))), [model.Assign("res", model.Reference("a"))]) printer = PrettyPrinter() result = printer.visit(conditional) assert (result == "if ((!((a) == (c))) && ((b) < (42))) {\n\tres =" + " a;\n};\n")
def test(): folder = ConstantFolder() prr = printer.PrettyPrinter() oper = model.BinaryOperation( model.BinaryOperation( model.BinaryOperation( model.BinaryOperation(model.Number(2), "+", model.Number(3)), "/", model.BinaryOperation(model.Number( 2), "+", model.Reference("x")) ), "/", model.BinaryOperation( model.BinaryOperation(model.Reference( "x"), "-", model.Reference("x")), "/", model.BinaryOperation(model.Reference( "x"), "-", model.Reference("y")) ) ), "/", model.BinaryOperation( model.BinaryOperation( model.BinaryOperation(model.Number( 0), "*", model.Reference("x")), "/", model.UnaryOperation("!", model.Reference("x")) ), "/", model.UnaryOperation("-", model.Number(30)) ), ) opr = model.Conditional(model.UnaryOperation("!", model.Number(2)), [model.Print(model.Number(2))]) prr.visit(oper) prr.visit(opr) noper = folder.visit(oper) nopr = folder.visit(opr) prr.visit(noper) prr.visit(nopr)
def main(): v = PrettyPrinter() v.visit(m.Print(m.Number(10))) v.visit(m.UnaryOperation('-', m.Number(10))) v.visit( m.BinaryOperation( m.BinaryOperation(m.Reference('foo'), '+', m.Number(7)), '*', m.Number(2))) v.visit(m.Read("read")) v.visit( m.Conditional( m.Number(5), [m.BinaryOperation(m.Reference('var'), '-', m.Number(-5))])) v.visit( m.FunctionDefinition( 'summer', m.Function(['a', 'b'], [ m.Print( m.BinaryOperation(m.Reference('a'), '+', m.Reference('b'))), m.BinaryOperation(m.Reference('a'), '+', m.Reference('b')) ]))) v.visit( m.FunctionCall( m.Reference('summer'), [m.Number(1), m.BinaryOperation(m.Number(2), '+', m.Number(3))])) v.visit( m.Print( m.Conditional(m.BinaryOperation(m.Number(4), '-', m.Number(4)), [], [ m.BinaryOperation(m.Number(9), '/', m.Number(3)), m.Reference('var') ]))) v.visit( m.FunctionDefinition( 'abs', m.Function(['a', 'b'], [ m.Conditional( m.BinaryOperation( m.BinaryOperation(m.Reference('a'), '-', m.Reference('b')), '>', m.Number(0)), [ m.Print( m.BinaryOperation(m.Reference('a'), '-', m.Reference('b'))) ], [ m.Print( m.BinaryOperation(m.Reference('b'), '-', m.Reference('a'))) ]) ]))) v.visit( m.FunctionCall( m.Reference('abs'), [m.Number(23), m.UnaryOperation('-', m.Number(-30))])) v.visit(m.FunctionDefinition('fu', m.Function([], []))) v.visit(m.FunctionCall(m.Reference('fu'), [])) v.visit(m.Print(m.BinaryOperation(m.Number(5), '&&', m.Number(6)))) v.visit(m.Print(m.BinaryOperation(m.Number(3), '<', m.Number(5)))) v.visit(m.Print(m.Conditional(m.Number(3), None, None))) v.visit(m.Print(m.BinaryOperation(m.Number(1), '||', m.Number(4))))
def test_empty_conditional(self): number = model.Number(42) conditional = model.Conditional(number, [], []) printer = PrettyPrinter() result = printer.visit(conditional) assert result == "if (42) {\n};\n"
def visit_conditional(self, conditional): return m.Conditional(conditional.condition.accept(self), self.optimize_list(conditional.if_true), self.optimize_list(conditional.if_false))
def test_conditional(): scope = model.Scope() true = model.Number(1) false = model.Number(0) f = model.FunctionCall(model.Function([], [true]), []) cond = model.Conditional(true, None, None) cond.evaluate(scope) cond = model.Conditional(false, None, None) cond.evaluate(scope) cond = model.Conditional(true, [], None) cond.evaluate(scope) cond = model.Conditional(true, None, []) cond.evaluate(scope) cond = model.Conditional(false, [], None) cond.evaluate(scope) cond = model.Conditional(false, None, []) cond.evaluate(scope) cond = model.Conditional(true, [], []) cond.evaluate(scope) cond = model.Conditional(true, [], []) cond.evaluate(scope) cond = model.Conditional(true, [true], None) assert cond.evaluate(scope) is true cond = model.Conditional(false, None, [false]) assert cond.evaluate(scope) is false cond = model.Conditional(true, [f], None) assert cond.evaluate(scope) is true cond = model.Conditional(false, None, [f]) assert cond.evaluate(scope) is true # If one of the following assertions fail, it means that Conditional has # evaluated wrong branch. cond = model.Conditional(false, [true], None) assert cond.evaluate(scope) is not true cond = model.Conditional(false, [true], []) assert cond.evaluate(scope) is not true cond = model.Conditional(true, None, [false]) assert cond.evaluate(scope) is not false cond = model.Conditional(true, [], [false]) assert cond.evaluate(scope) is not false
def visitConditional(self, extra): return model.Conditional( extra.condition.visit(self), self.listev(extra.if_true), self.listev(extra.if_false) if extra.if_false is not None else None)
def visit_conditional(self, cond): condition = cond.condition.visit(self) if_true = self.process_list(cond.if_true or []) if_false = self.process_list(cond.if_false or []) return model.Conditional(condition, if_true, if_false)