Mercurial > python-compiler.rs
annotate src/ast_convert.rs @ 5:ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
| author | Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> |
|---|---|
| date | Tue, 31 May 2016 04:15:00 +0100 |
| parents | f27a4aee9dfa |
| children | 6f2bf13f4cb5 |
| rev | line source |
|---|---|
|
5
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
1 use python_ast::{Module, Statement, Expr, BinOp, UnaryOp}; |
| 0 | 2 |
| 3 use cpython::{Python, PyObject}; | |
| 4 use cpython::ObjectProtocol; //for call method | |
| 5 | |
|
1
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
6 fn get_str(py: Python, object: PyObject) -> String { |
|
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
7 let pystring = object.str(py).unwrap(); |
|
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
8 let mut string = pystring.to_string(py).unwrap(); |
|
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
9 string.to_mut().to_string() |
|
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
10 } |
|
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
11 |
| 0 | 12 fn parse_expr_vec(py: Python, ast: PyObject) -> Vec<Expr> { |
| 13 let builtins_module = py.import("builtins").unwrap(); | |
| 14 let isinstance = builtins_module.get(py, "isinstance").unwrap(); | |
| 15 | |
| 16 let is_instance = |object: &PyObject, type_: &PyObject| { | |
| 17 return isinstance.call(py, (object, type_), None).unwrap().is_true(py).unwrap(); | |
| 18 }; | |
| 19 | |
| 20 let ast_module = py.import("ast").unwrap(); | |
| 21 let ast_type = ast_module.get(py, "AST").unwrap(); | |
| 22 let arguments_type = ast_module.get(py, "arguments").unwrap(); | |
| 23 | |
| 24 assert!(is_instance(&ast, &ast_type)); | |
| 25 | |
| 26 if is_instance(&ast, &arguments_type) { | |
| 27 let args = ast.getattr(py, "args").unwrap(); | |
| 28 let mut arguments = vec!(); | |
| 29 for arg in args.iter(py).unwrap() { | |
| 30 let arg = parse_expr(py, arg.unwrap()); | |
| 31 arguments.push(arg); | |
| 32 } | |
| 33 arguments | |
| 34 } else { | |
| 35 vec!(Expr::Error) | |
| 36 } | |
| 37 } | |
| 38 | |
|
5
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
39 fn parse_unaryop(py: Python, ast: PyObject) -> UnaryOp { |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
40 let builtins_module = py.import("builtins").unwrap(); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
41 let isinstance = builtins_module.get(py, "isinstance").unwrap(); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
42 |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
43 let is_instance = |object: &PyObject, type_: &PyObject| { |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
44 return isinstance.call(py, (object, type_), None).unwrap().is_true(py).unwrap(); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
45 }; |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
46 |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
47 let ast_module = py.import("ast").unwrap(); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
48 let ast_type = ast_module.get(py, "AST").unwrap(); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
49 let uadd_type = ast_module.get(py, "UAdd").unwrap(); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
50 let usub_type = ast_module.get(py, "USub").unwrap(); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
51 |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
52 assert!(is_instance(&ast, &ast_type)); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
53 |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
54 if is_instance(&ast, &uadd_type) { |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
55 UnaryOp::UAdd |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
56 } else if is_instance(&ast, &usub_type) { |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
57 UnaryOp::USub |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
58 } else { |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
59 println!("UnaryOp {}", ast); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
60 UnaryOp::Error |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
61 } |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
62 } |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
63 |
| 0 | 64 fn parse_binop(py: Python, ast: PyObject) -> BinOp { |
| 65 let builtins_module = py.import("builtins").unwrap(); | |
| 66 let isinstance = builtins_module.get(py, "isinstance").unwrap(); | |
| 67 | |
| 68 let is_instance = |object: &PyObject, type_: &PyObject| { | |
| 69 return isinstance.call(py, (object, type_), None).unwrap().is_true(py).unwrap(); | |
| 70 }; | |
| 71 | |
| 72 let ast_module = py.import("ast").unwrap(); | |
| 73 let ast_type = ast_module.get(py, "AST").unwrap(); | |
| 74 let add_type = ast_module.get(py, "Add").unwrap(); | |
| 75 let mult_type = ast_module.get(py, "Mult").unwrap(); | |
| 76 let eq_type = ast_module.get(py, "Eq").unwrap(); | |
| 77 let lt_type = ast_module.get(py, "Lt").unwrap(); | |
|
5
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
78 let sub_type = ast_module.get(py, "Sub").unwrap(); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
79 let div_type = ast_module.get(py, "Div").unwrap(); |
| 0 | 80 |
| 81 assert!(is_instance(&ast, &ast_type)); | |
| 82 | |
| 83 if is_instance(&ast, &add_type) { | |
| 84 BinOp::BinAdd | |
| 85 } else if is_instance(&ast, &mult_type) { | |
| 86 BinOp::BinMult | |
| 87 } else if is_instance(&ast, &eq_type) { | |
| 88 BinOp::BinEq | |
| 89 } else if is_instance(&ast, <_type) { | |
| 90 BinOp::BinLt | |
|
5
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
91 } else if is_instance(&ast, &sub_type) { |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
92 BinOp::Sub |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
93 } else if is_instance(&ast, &div_type) { |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
94 BinOp::Div |
| 0 | 95 } else { |
| 96 println!("BinOp {}", ast); | |
| 97 BinOp::Error | |
| 98 } | |
| 99 } | |
| 100 | |
| 101 fn parse_expr(py: Python, ast: PyObject) -> Expr { | |
| 102 let builtins_module = py.import("builtins").unwrap(); | |
| 103 let isinstance = builtins_module.get(py, "isinstance").unwrap(); | |
| 104 | |
| 105 let is_instance = |object: &PyObject, type_: &PyObject| { | |
| 106 return isinstance.call(py, (object, type_), None).unwrap().is_true(py).unwrap(); | |
| 107 }; | |
| 108 | |
| 109 let ast_module = py.import("ast").unwrap(); | |
| 110 let ast_type = ast_module.get(py, "AST").unwrap(); | |
| 111 let arg_type = ast_module.get(py, "arg").unwrap(); | |
|
5
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
112 let unary_op_type = ast_module.get(py, "UnaryOp").unwrap(); |
| 0 | 113 let bin_op_type = ast_module.get(py, "BinOp").unwrap(); |
| 114 let name_constant_type = ast_module.get(py, "NameConstant").unwrap(); | |
|
4
f27a4aee9dfa
Add ast.Attribute.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
3
diff
changeset
|
115 let attribute_type = ast_module.get(py, "Attribute").unwrap(); |
| 0 | 116 let name_type = ast_module.get(py, "Name").unwrap(); |
| 117 let num_type = ast_module.get(py, "Num").unwrap(); | |
| 118 let str_type = ast_module.get(py, "Str").unwrap(); | |
| 119 let compare_type = ast_module.get(py, "Compare").unwrap(); | |
| 120 let call_type = ast_module.get(py, "Call").unwrap(); | |
| 121 let alias_type = ast_module.get(py, "alias").unwrap(); | |
| 122 | |
| 123 assert!(is_instance(&ast, &ast_type)); | |
| 124 | |
| 125 if is_instance(&ast, &arg_type) { | |
|
1
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
126 let arg = ast.getattr(py, "arg").unwrap(); |
|
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
127 let arg = get_str(py, arg); |
| 0 | 128 Expr::Name(arg) |
|
4
f27a4aee9dfa
Add ast.Attribute.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
3
diff
changeset
|
129 } else if is_instance(&ast, &attribute_type) { |
|
f27a4aee9dfa
Add ast.Attribute.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
3
diff
changeset
|
130 let value = ast.getattr(py, "value").unwrap(); |
|
f27a4aee9dfa
Add ast.Attribute.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
3
diff
changeset
|
131 let attr = ast.getattr(py, "attr").unwrap(); |
|
f27a4aee9dfa
Add ast.Attribute.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
3
diff
changeset
|
132 |
|
f27a4aee9dfa
Add ast.Attribute.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
3
diff
changeset
|
133 let value = parse_expr(py, value); |
|
f27a4aee9dfa
Add ast.Attribute.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
3
diff
changeset
|
134 let attr = get_str(py, attr); |
|
f27a4aee9dfa
Add ast.Attribute.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
3
diff
changeset
|
135 |
|
f27a4aee9dfa
Add ast.Attribute.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
3
diff
changeset
|
136 Expr::Attribute(Box::new(value), attr) |
| 0 | 137 } else if is_instance(&ast, &name_type) { |
|
1
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
138 let id = ast.getattr(py, "id").unwrap(); |
|
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
139 let id = get_str(py, id); |
| 0 | 140 Expr::Name(id) |
| 141 } else if is_instance(&ast, &name_constant_type) { | |
|
1
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
142 let value = ast.getattr(py, "value").unwrap(); |
|
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
143 let value = get_str(py, value); |
| 0 | 144 Expr::NameConstant(value) |
| 145 } else if is_instance(&ast, &num_type) { | |
|
1
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
146 let n = ast.getattr(py, "n").unwrap(); |
|
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
147 let n = get_str(py, n); |
| 0 | 148 Expr::Num(n) |
| 149 } else if is_instance(&ast, &str_type) { | |
|
1
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
150 let s = ast.getattr(py, "s").unwrap(); |
|
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
151 let s = get_str(py, s); |
| 0 | 152 Expr::Str(s) |
|
5
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
153 } else if is_instance(&ast, &unary_op_type) { |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
154 let op = ast.getattr(py, "op").unwrap(); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
155 let operand = ast.getattr(py, "operand").unwrap(); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
156 |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
157 let op = parse_unaryop(py, op); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
158 let operand = parse_expr(py, operand); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
159 |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
160 Expr::UnaryOp(op, Box::new(operand)) |
| 0 | 161 } else if is_instance(&ast, &bin_op_type) { |
| 162 let left = ast.getattr(py, "left").unwrap(); | |
| 163 let op = ast.getattr(py, "op").unwrap(); | |
| 164 let right = ast.getattr(py, "right").unwrap(); | |
| 165 | |
| 166 let left = parse_expr(py, left); | |
| 167 let op = parse_binop(py, op); | |
| 168 let right = parse_expr(py, right); | |
| 169 | |
| 170 Expr::BinOp(Box::new(left), op, Box::new(right)) | |
| 171 } else if is_instance(&ast, &call_type) { | |
| 172 let func = ast.getattr(py, "func").unwrap(); | |
| 173 let args = ast.getattr(py, "args").unwrap(); | |
| 174 //let keywords = ast.getattr(py, "keywords").unwrap(); | |
| 175 | |
| 176 let func = parse_expr(py, func); | |
| 177 | |
| 178 let mut arguments = vec!(); | |
| 179 for arg in args.iter(py).unwrap() { | |
| 180 let arg = arg.unwrap(); | |
| 181 arguments.push(parse_expr(py, arg)); | |
| 182 } | |
| 183 | |
| 184 Expr::Call(Box::new(func), arguments) | |
| 185 } else if is_instance(&ast, &alias_type) { | |
| 186 let name = ast.getattr(py, "name").unwrap(); | |
| 187 let asname = ast.getattr(py, "asname").unwrap(); | |
| 188 | |
|
1
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
189 let name = get_str(py, name); |
|
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
190 let asname = if asname == py.None() { |
|
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
191 None |
|
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
192 } else { |
|
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
193 Some(get_str(py, asname)) |
| 0 | 194 }; |
| 195 | |
| 196 Expr::Alias(name, asname) | |
| 197 } else if is_instance(&ast, &compare_type) { | |
| 198 let left = ast.getattr(py, "left").unwrap(); | |
| 199 let ops = ast.getattr(py, "ops").unwrap(); | |
| 200 let comparators = ast.getattr(py, "comparators").unwrap(); | |
| 201 | |
| 202 let left = parse_expr(py, left); | |
| 203 let ops = ops.iter(py).unwrap(); | |
| 204 let comparators = comparators.iter(py).unwrap(); | |
| 205 | |
| 206 let mut new_ops = vec!(); | |
| 207 for op in ops { | |
| 208 let op = op.unwrap(); | |
| 209 let op = parse_binop(py, op); | |
| 210 new_ops.push(op); | |
| 211 } | |
| 212 | |
| 213 let mut new_comparators = vec!(); | |
| 214 for comparator in comparators { | |
| 215 let comparator = comparator.unwrap(); | |
| 216 let comparator = parse_expr(py, comparator); | |
| 217 new_comparators.push(comparator); | |
| 218 } | |
| 219 | |
| 220 Expr::Compare(Box::new(left), new_ops, new_comparators) | |
| 221 } else { | |
| 222 println!("Expr {}", ast); | |
| 223 Expr::Error | |
| 224 } | |
| 225 } | |
| 226 | |
| 227 fn parse_statement(py: Python, ast: PyObject) -> Statement { | |
| 228 //Statement::FunctionDef(Expr::Name("function".to_string()), vec!(Expr::Name("a".to_string()), Expr::Name("b".to_string())), vec!()) | |
| 229 //Statement::If(Expr::BinOp(BinOp::BinEq, Box::new(Expr::Name("__name__".to_string())), Box::new(Expr::Str("__main__".to_string()))), vec!(Statement::Expr(Expr::Call(Box::new(Expr::Name("function".to_string())), vec!(Expr::Num(1), Expr::Num(2)))))) | |
| 230 | |
| 231 let builtins_module = py.import("builtins").unwrap(); | |
| 232 let isinstance = builtins_module.get(py, "isinstance").unwrap(); | |
| 233 | |
| 234 let is_instance = |object: &PyObject, type_: &PyObject| { | |
| 235 return isinstance.call(py, (object, type_), None).unwrap().is_true(py).unwrap(); | |
| 236 }; | |
| 237 | |
| 238 let ast_module = py.import("ast").unwrap(); | |
| 239 let ast_type = ast_module.get(py, "AST").unwrap(); | |
|
2
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
240 let class_def_type = ast_module.get(py, "ClassDef").unwrap(); |
| 0 | 241 let function_def_type = ast_module.get(py, "FunctionDef").unwrap(); |
| 242 let global_type = ast_module.get(py, "Global").unwrap(); | |
| 243 let assign_type = ast_module.get(py, "Assign").unwrap(); | |
| 244 let return_type = ast_module.get(py, "Return").unwrap(); | |
| 245 let import_from_type = ast_module.get(py, "ImportFrom").unwrap(); | |
| 246 let if_type = ast_module.get(py, "If").unwrap(); | |
|
5
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
247 let for_type = ast_module.get(py, "For").unwrap(); |
| 0 | 248 let expr_type = ast_module.get(py, "Expr").unwrap(); |
| 249 | |
| 250 assert!(is_instance(&ast, &ast_type)); | |
| 251 | |
| 252 /* | |
| 253 // TODO: implement Hash for PyObject. (trivial) | |
| 254 let map = { | |
| 255 let fields = ast.getattr(py, "_fields").unwrap(); | |
| 256 let mut map = HashMap::new(); | |
| 257 for field in fields.iter(py).unwrap() { | |
| 258 let field = field.unwrap(); | |
| 259 let value = ast.getattr(py, field).unwrap(); | |
| 260 map.insert(field, value); | |
| 261 } | |
| 262 map | |
| 263 }; | |
| 264 */ | |
| 265 | |
|
2
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
266 if is_instance(&ast, &class_def_type) { |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
267 let name = ast.getattr(py, "name").unwrap(); |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
268 let bases = ast.getattr(py, "bases").unwrap(); |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
269 //let keywords = ast.getattr(py, "keywords").unwrap(); |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
270 let body = ast.getattr(py, "body").unwrap(); |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
271 //let decorator_list = ast.getattr(py, "decorator_list").unwrap(); |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
272 |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
273 let name = get_str(py, name); |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
274 |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
275 let mut nodes = vec!(); |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
276 for name_node in bases.iter(py).unwrap() { |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
277 let name_node = name_node.unwrap(); |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
278 let name_node = parse_expr(py, name_node); |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
279 nodes.push(name_node); |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
280 } |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
281 |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
282 let mut statements = vec!(); |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
283 for statement in body.iter(py).unwrap() { |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
284 let statement = statement.unwrap(); |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
285 let statement = parse_statement(py, statement); |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
286 statements.push(statement); |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
287 } |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
288 |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
289 Statement::ClassDef(name, nodes, statements) |
|
5fc7c2790d8c
Add class support.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
1
diff
changeset
|
290 } else if is_instance(&ast, &function_def_type) { |
| 0 | 291 let name = ast.getattr(py, "name").unwrap(); |
| 292 let args = ast.getattr(py, "args").unwrap(); | |
| 293 let body = ast.getattr(py, "body").unwrap(); | |
| 294 | |
|
1
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
295 let name = get_str(py, name); |
| 0 | 296 let args = parse_expr_vec(py, args); |
| 297 /* | |
| 298 let mut arguments = vec!(); | |
| 299 for arg in args.iter(py).unwrap() { | |
| 300 let arg = parse_expr(py, arg.unwrap()); | |
| 301 arguments.push(arg); | |
| 302 } | |
| 303 */ | |
| 304 | |
| 305 let mut statements = vec!(); | |
| 306 for statement in body.iter(py).unwrap() { | |
| 307 let statement = parse_statement(py, statement.unwrap()); | |
| 308 statements.push(statement); | |
| 309 } | |
| 310 | |
|
3
326d7f2a94d4
Remove useless abstraction of function name as Expr.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
2
diff
changeset
|
311 Statement::FunctionDef(name, args, statements) |
| 0 | 312 } else if is_instance(&ast, &global_type) { |
| 313 let names = ast.getattr(py, "names").unwrap(); | |
| 314 | |
| 315 let mut globals = vec!(); | |
| 316 for name in names.iter(py).unwrap() { | |
|
1
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
317 let name = name.unwrap(); |
|
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
318 let name = get_str(py, name); |
| 0 | 319 globals.push(name); |
| 320 } | |
| 321 | |
| 322 Statement::Global(globals) | |
| 323 } else if is_instance(&ast, &if_type) { | |
| 324 let test = ast.getattr(py, "test").unwrap(); | |
| 325 let body = ast.getattr(py, "body").unwrap(); | |
| 326 let orelse = ast.getattr(py, "orelse").unwrap(); | |
| 327 | |
| 328 let test = parse_expr(py, test); | |
| 329 | |
| 330 let mut statements = vec!(); | |
| 331 for statement in body.iter(py).unwrap() { | |
|
1
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
332 let statement = statement.unwrap(); |
|
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
333 let statement = parse_statement(py, statement); |
| 0 | 334 statements.push(statement); |
| 335 } | |
| 336 | |
| 337 let mut orelse_ = vec!(); | |
| 338 for statement in orelse.iter(py).unwrap() { | |
|
1
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
339 let statement = statement.unwrap(); |
|
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
340 let statement = parse_statement(py, statement); |
| 0 | 341 orelse_.push(statement); |
| 342 } | |
| 343 | |
| 344 Statement::If(test, statements, orelse_) | |
|
5
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
345 } else if is_instance(&ast, &for_type) { |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
346 let target = ast.getattr(py, "target").unwrap(); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
347 let iter = ast.getattr(py, "iter").unwrap(); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
348 let body = ast.getattr(py, "body").unwrap(); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
349 let orelse = ast.getattr(py, "orelse").unwrap(); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
350 |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
351 let target = parse_expr(py, target); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
352 let iter = parse_expr(py, iter); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
353 |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
354 let mut statements = vec!(); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
355 for statement in body.iter(py).unwrap() { |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
356 let statement = statement.unwrap(); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
357 let statement = parse_statement(py, statement); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
358 statements.push(statement); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
359 } |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
360 |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
361 let mut orelse_ = vec!(); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
362 for statement in orelse.iter(py).unwrap() { |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
363 let statement = statement.unwrap(); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
364 let statement = parse_statement(py, statement); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
365 orelse_.push(statement); |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
366 } |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
367 |
|
ddf372373a77
Add ast.For, ast.UnaryOp, and Sub and Div to ast.BinOp.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
4
diff
changeset
|
368 Statement::For(target, iter, statements, orelse_) |
| 0 | 369 } else if is_instance(&ast, &assign_type) { |
| 370 let targets = ast.getattr(py, "targets").unwrap(); | |
| 371 let value = ast.getattr(py, "value").unwrap(); | |
| 372 | |
| 373 let mut arguments = vec!(); | |
| 374 for target in targets.iter(py).unwrap() { | |
|
1
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
375 let target = target.unwrap(); |
|
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
376 let target = parse_expr(py, target); |
| 0 | 377 arguments.push(target); |
| 378 } | |
| 379 | |
| 380 let value = parse_expr(py, value); | |
| 381 | |
| 382 Statement::Assign(arguments, value) | |
| 383 } else if is_instance(&ast, &import_from_type) { | |
| 384 let module = ast.getattr(py, "module").unwrap(); | |
| 385 let names = ast.getattr(py, "names").unwrap(); | |
| 386 //let level = ast.getattr(py, "level").unwrap(); | |
| 387 | |
|
1
b90e49ab734b
Factorise conversion of Python str into Rust String.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
0
diff
changeset
|
388 let module = get_str(py, module); |
| 0 | 389 |
| 390 let mut names_ = vec!(); | |
| 391 for alias in names.iter(py).unwrap() { | |
| 392 let alias = alias.unwrap(); | |
| 393 let alias = parse_expr(py, alias); | |
| 394 names_.push(alias); | |
| 395 } | |
| 396 | |
| 397 Statement::ImportFrom(module, names_) | |
| 398 } else if is_instance(&ast, &return_type) { | |
| 399 let value = ast.getattr(py, "value").unwrap(); | |
| 400 let value = parse_expr(py, value); | |
| 401 Statement::Return(value) | |
| 402 } else if is_instance(&ast, &expr_type) { | |
| 403 let value = ast.getattr(py, "value").unwrap(); | |
| 404 let value = parse_expr(py, value); | |
| 405 Statement::Expr(value) | |
| 406 } else { | |
| 407 println!("Statement {}", ast); | |
| 408 Statement::Error | |
| 409 } | |
| 410 } | |
| 411 | |
| 412 #[allow(dead_code)] | |
| 413 pub fn convert_ast(name: String, module: &PyObject) -> Module { | |
| 414 let gil = Python::acquire_gil(); | |
| 415 let py = gil.python(); | |
| 416 | |
| 417 let builtins_module = py.import("builtins").unwrap(); | |
| 418 let isinstance = builtins_module.get(py, "isinstance").unwrap(); | |
| 419 | |
| 420 let ast_module = py.import("ast").unwrap(); | |
| 421 let module_type = ast_module.get(py, "Module").unwrap(); | |
| 422 | |
| 423 assert!(isinstance.call(py, (module, module_type), None).unwrap().is_true(py).unwrap()); | |
| 424 | |
| 425 let body = module.getattr(py, "body").unwrap(); | |
| 426 let mut statements = vec!(); | |
| 427 for statement in body.iter(py).unwrap() { | |
| 428 let statement = parse_statement(py, statement.unwrap()); | |
| 429 statements.push(statement) | |
| 430 } | |
| 431 Module{name: name, statements: statements} | |
| 432 } |