def test_blocks(self):
g = Grammar("""\
// hello""")
result,error = g.apply("blocks")
assert result == [["comment", {}, " hello"]]
g = Grammar("""
// hello
// hello""")
result,error = g.apply("blocks")
assert result == ['\n',["comment", {}, " hello"],["comment", {}, " hello"]]
g = Grammar("""
/* hello */
// hello""")
result,error = g.apply("blocks")
assert result == ['\n',["mlcomment", {}, " hello "],'\n',["comment", {}, " hello"]]
g = Grammar("""
/* hello
* hello*/
// hello""")
result,error = g.apply("blocks")
assert result == ['\n',["mlcomment", {}, " hello\n * hello"],'\n',["comment", {}, " hello"]]
g = Grammar("""
/* hello */
// hello
@abc""")
result,error = g.apply("blocks")
assert result == ['\n',["mlcomment", {}, " hello "],'\n',["comment", {}, " hello"], ['annotation', {}, 'abc']]
def test_annotation(self):
g = Grammar("""\
@abc""")
result,error = g.apply("annotation")
assert result == ['annotation', {}, 'abc']
g = Grammar("""@abc()""")
result,error = g.apply("annotation")
assert result == ['annotation', {}, 'abc']
g = Grammar("""@abc("url",5)""")
result,error = g.apply("annotation")
assert result == ['annotation', {}, 'abc','"url",5']
def test_expression(self):
g = Grammar(""" ++ """)
result,error = g.apply("surrounded","++")
assert result == "++"
g = Grammar("""==""")
result,error = g.apply("surrounded","==")
assert result == "=="
g = Grammar("""a""")
result,error = g.apply("expression")
assert result == ['a']
g = Grammar("""a + b""")
result,error = g.apply("expression")
assert result == ['a','+','b']
"""
a[b][c][d]
a.b.c
a[b].c
(a[b])
c + 5
1 + 2
"abc" 'def'
0x123
012
12
/abc/
variable expressions
literal expressions
['expr',{},'a']
['()',{},['a','-','b']]
"""
pass
def test_comment(self):
g = Grammar("""\
// hello""")
result,error = g.apply("comment")
assert result == ["comment", {}, " hello"]
g = Grammar("""/*
*/""")
result,error = g.apply("mlcomment")
assert result == ['mlcomment', {}, "\n"]
g = Grammar("""/***
///
***/""")
result,error = g.apply("mlcomment")
assert result == ['mlcomment',{}, "**\n///\n**"]
g = Grammar("""/*
* hello ** ..
* abc
*/""")
result,error = g.apply("mlcomment")
assert result == ['mlcomment', {},"\n * hello ** ..\n * abc\n "]
def test_Statement(self):
g = Grammar(""";""")
result,error = g.apply("sourceElement")
assert result == g.ast("empty")
def test_something_star_no_slash(self):
g = Grammar("""\
hello *""")
result,error = g.apply("something_star_no_slash")
assert result == " hello *"
def test_block(self):
g = Grammar("""function abc() {;}""")
result,error = g.apply("sourceElements")
assert result == [g.ast("func","abc",[],[g.ast("empty")])]
g = Grammar("""function abc() {; }""")
result,error = g.apply("sourceElements")
assert result == [g.ast("func","abc",[],[g.ast("empty")])]
g = Grammar(""" {;}""")
result,error = g.apply("sourceElements")
assert result == [g.ast("block",[g.ast("empty")])]
g = Grammar(""" {; }""")
result,error = g.apply("sourceElements")
assert result == [g.ast("block",[g.ast("empty")])]
def test_simple_statements(self):
g = Grammar("""delete a; delete b
delete c""")
result,error = g.apply("sourceElements")
assert result == [g.ast("simple","delete", 'a'),g.ast("simple","delete", 'b'),g.ast("simple","delete", 'c')]
g = Grammar("""return a; return b
return c""")
result,error = g.apply("sourceElements")
assert result == [g.ast("simple","return", 'a'),g.ast("simple","return", 'b'),g.ast("simple","return", 'c')]
g = Grammar("""throw a; throw b
throw c""")
result,error = g.apply("sourceElements")
assert result == [g.ast("simple","throw", 'a'),g.ast("simple","throw", 'b'),g.ast("simple","throw", 'c')]
def test_keyword_statements(self):
g = Grammar("""debugger; debugger
debugger""")
result,error = g.apply("sourceElements")
assert result == [g.ast("simple","debugger", []),g.ast("simple","debugger", []),g.ast("simple","debugger", [])]
g = Grammar("""continue; continue
continue""")
result,error = g.apply("sourceElements")
assert result == [g.ast("simple","continue", []),g.ast("simple","continue", []),g.ast("simple","continue", [])]
g = Grammar("""break; break
break""")
result,error = g.apply("sourceElements")
assert result == [g.ast("simple","break", []),g.ast("simple","break", []),g.ast("simple","break", [])]
def test_var(self):
g = Grammar("""a""")
result,error = g.apply("varDeclarations")
assert result == [g.ast("a",[])]
g = Grammar("""a,b,c,
d""")
result,error = g.apply("varDeclarations")
assert result == [g.ast("a",[]),g.ast("b",[]),g.ast("c",[]),g.ast("d",[])]
g = Grammar("""a = b""")
result,error = g.apply("varDeclarations")
assert result == [g.ast("a",["b"])]
g = Grammar("""var abc = def
var b = c; var d = e""")
result,error = g.apply("sourceElements")
assert result == [g.ast("var",[g.ast("abc",['def'])]),g.ast("var",[g.ast("b",['c'])]),g.ast("var",[g.ast("d",['e'])])]
g = Grammar("""var abc
var b; var d""")
result,error = g.apply("sourceElements")
assert result == [
g.ast("var",[g.ast("abc",[])]),
g.ast("var",[g.ast("b",[])]),
g.ast("var",[g.ast("d",[])])
]
g = Grammar("""var abc, def
var a,b,c; var d,e""")
result,error = g.apply("sourceElements")
assert result == [
g.ast("var",[
g.ast("abc",[]),g.ast("def",[])
]),
g.ast("var",[
g.ast("a",[]),g.ast("b",[]),g.ast("c",[])
]),
g.ast("var",[
g.ast("d",[]),g.ast("e",[])
])
]
g = Grammar("""var a,
b = 5; var d/* = undefined */,e
var
x = 10""")
result,error = g.apply("sourceElements")
expect = [
g.ast("var",[ g.ast("a",[]), g.ast("b",["5"]) ]),
g.ast("var",[ g.ast("d",[],postfix=g.ast("mlcomment"," = undefined ")), g.ast("e",[]) ]),
g.ast("var",[ g.ast("x",['10']) ])
]
def test_function(self):
g = Grammar("""function abc(){}""")
result,error = g.apply("sourceElement")
assert result == g.ast("func","abc",[],[])
g = Grammar("""function abc(){}""")
result,error = g.apply("sourceElements")
assert result == [g.ast("func","abc",[],[])]
g = Grammar("""/* lead comment */ function abc(){}""")
result,error = g.apply("sourceElements")
assert result == [g.ast("mlcomment"," lead comment "),g.ast("func","abc",[],[])]
g = Grammar("""function abc(/* in args */){}""")
result,error = g.apply("sourceElements")
assert result == [g.ast("func","abc",[g.ast("mlcomment"," in args ")],[])]
g = Grammar("""function abc(// in args
def,ghi){}""")
result,error = g.apply("sourceElements")
assert result == [g.ast("func","abc",[g.ast("comment"," in args"),"def,ghi"],[])]
g = Grammar("""function abc(){;;}""")
result,error = g.apply("sourceElements")
assert result == [g.ast("func","abc",[],[g.ast("empty"),g.ast("empty")])]
g = Grammar("""function abc(){/* in block */;;}""")
result,error = g.apply("sourceElements")
assert result == [g.ast("func","abc",[],[g.ast("mlcomment"," in block "),g.ast("empty"),g.ast("empty")])]
