def test_if_elif():
ast = ctrl([
_if(_is(v("a"), c(8)), blk([asg(v("b"), c(3))])),
_if(_is(v("a"), c(4)), blk([asg(v("b"), c(2))]))
], blk())
parser = Parser(Tokenizer("if a is 8 { b = 3 } elif a is 4 { b = 2 }"))
assert parser.statement() == ast
def test_simple():
ast = _def(v("t"), sig([]), blk([asg(v("a"), c(1))]))
parser = Parser(Tokenizer("func t() {a = 1}"))
assert parser.statement() == ast
def test_with_params():
ast = _def(v("t"), sig([v("b"), v("c")]), blk([asg(v("a"), c(1))]))
parser = Parser(Tokenizer("func t(b, c) {a = 1}"))
assert parser.statement() == ast
def test_simple_return_var():
ast = _def(v("t"), sig([]), blk([asg(v("a"), c(1)), ret(v("a"))]))
parser = Parser(Tokenizer("func t() {a = 1\nreturn a}"))
assert parser.statement() == ast
def test_simple_return():
ast = _def(v("t"), sig([]), blk([ret(c(1))]))
parser = Parser(Tokenizer("func t() {return 1}"))
assert parser.statement() == ast
def test_if():
ast = ctrl(
[_if(_is(getitem(v("a"), c(0)), c(8)), blk([asg(v("b"), c(3))]))],
blk())
parser = Parser(Tokenizer("if a[0] is 8 { b = 3 }"))
assert parser.statement() == ast
def test_func_str():
ast = _def(v("t"), sig([]), blk([asg(v("a"), c(1)), ret(v("a"))]))
assert str(ast) == "func t() {\n" + TAB + "a = 1\n" + TAB + "return a\n}"
def test_simple():
ast = _for(asg(v("i"), c(0)), lt(v("i"), c(10)),
asg(v("i"), add(v("i"), c(1))), blk([asg(v("a"), c(1))]))
parser = Parser(Tokenizer("for i = 0; i < 10; i = i + 1 {a = 1}"))
assert parser.statement() == ast
def test_array():
ast = _for(asg(v("i"), c(0)), lt(v("i"), c(10)),
asg(v("i"), add(v("i"), c(1))),
blk([asg(v("a"), getitem(v("b"), v("i")))]))
parser = Parser(Tokenizer("for i = 0; i < 10; i = i + 1 {a = b[i]}"))
assert parser.statement() == ast
def test_empty_if_with_new_line():
ast = ctrl([_if(_is(v("a"), c(8)), blk())], blk())
parser = Parser(Tokenizer("if a is 8 { \n }"))
assert parser.statement() == ast
def test_if_with_new_lines():
ast = ctrl([_if(_is(v("a"), c(8)), blk([asg(v("b"), c(3))]))], blk())
parser = Parser(Tokenizer("if a is 8 {\nb = 3\n}"))
assert parser.statement() == ast