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Merge pull request #3 from nyu-compiler-construction/sanjar/testing

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Sanjar/testing
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sunyinqi0508 3 years ago committed by GitHub
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5
WORKLOG.md
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<br>
## Passes:
-
- First Pass: Creates the symbol tables and adds all the elements of the program to the symbol table. The first step is creating the basic table symbol, which is the parent(root) of the symbol table structure(which forms a tree-like structure). Classes for Object, int, bool and str are added to this symbol table. This table contains the global declarations. At each level of scope, we create a symbol table which points to the parent symbol table. Variables, functions and classes are added to the appropriate symbol table according to the scope.
- Second Pass: At each node of the abstract syntax tree, the types are identified and populated.
## Recovery:
-
## Challenges:
-
- Nested structures were a challenge. A function inside a function needs to handle variable references as well as ensure function calls have appropriate scope.
## Improvements:
- Added more tests to rigorously check program flow and indentation.

3
build.sh
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#!/bin/bash
mvn clean package -e

4
full_test.sh
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#!/bin/bash
./build.sh
./test_sample.sh
./test_student_contributed.sh

24
pa1-tests/README.md
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# Tests for PA1: ChocoPy Parser
Clone a student repository:
```
TEAM="team"
git clone --branch=pa1final \
https://github.com/nyu-compiler-construction/pa1-chocopy-parser-${TEAM}
```
Build it:
```
cd pa1-chocopy-parser-${TEAM}
mvn clean package
```
Clone the tests _into_ the student repository:
```
git clone https://github.com/nyu-compiler-construction/pa1-tests
```
Run the tests:
```
./pa1-tests/run-tests.sh
```

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pa1-tests/chocopy-ref.jar
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1
pa1-tests/core/bad_assign_expr1.py
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x = (y = 2)

16
pa1-tests/core/bad_assign_expr1.py.ast
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{
"kind" : "Program",
"location" : [ 1, 6, 1, 6 ],
"declarations" : [ ],
"statements" : [ ],
"errors" : {
"errors" : [ {
"kind" : "CompilerError",
"location" : [ 1, 8, 1, 8 ],
"message" : "Parse error near token EQ: =",
"syntax" : true
} ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

1
pa1-tests/core/bad_assign_expr2.py
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print(x = 1)

16
pa1-tests/core/bad_assign_expr2.py.ast
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{
"kind" : "Program",
"location" : [ 1, 7, 1, 7 ],
"declarations" : [ ],
"statements" : [ ],
"errors" : {
"errors" : [ {
"kind" : "CompilerError",
"location" : [ 1, 9, 1, 9 ],
"message" : "Parse error near token EQ: =",
"syntax" : true
} ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

6
pa1-tests/core/bad_func_def.py
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def foo(a, b) -> 1:
x:int = a
return 1
print(1)
print(3**6)

64
pa1-tests/core/bad_func_def.py.ast
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{
"kind" : "Program",
"location" : [ 2, 13, 6, 8 ],
"declarations" : [ ],
"statements" : [ {
"kind" : "ExprStmt",
"location" : [ 2, 13, 2, 13 ],
"expr" : {
"kind" : "Identifier",
"location" : [ 2, 13, 2, 13 ],
"name" : "a"
}
}, {
"kind" : "ReturnStmt",
"location" : [ 3, 5, 3, 12 ],
"value" : {
"kind" : "IntegerLiteral",
"location" : [ 3, 12, 3, 12 ],
"value" : 1
}
}, {
"kind" : "ExprStmt",
"location" : [ 5, 1, 5, 8 ],
"expr" : {
"kind" : "CallExpr",
"location" : [ 5, 1, 5, 8 ],
"function" : {
"kind" : "Identifier",
"location" : [ 5, 1, 5, 5 ],
"name" : "print"
},
"args" : [ {
"kind" : "IntegerLiteral",
"location" : [ 5, 7, 5, 7 ],
"value" : 1
} ]
}
} ],
"errors" : {
"errors" : [ {
"kind" : "CompilerError",
"location" : [ 1, 10, 1, 10 ],
"message" : "Parse error near token COMMA: ,",
"syntax" : true
}, {
"kind" : "CompilerError",
"location" : [ 2, 13, 2, 13 ],
"message" : "Parse error near token IDENTIFIER: a",
"syntax" : true
}, {
"kind" : "CompilerError",
"location" : [ 5, 1, 5, 0 ],
"message" : "Parse error near token DEDENT: ",
"syntax" : true
}, {
"kind" : "CompilerError",
"location" : [ 6, 9, 6, 9 ],
"message" : "Parse error near token TIMES: *",
"syntax" : true
} ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

3
pa1-tests/core/bad_indentation.py
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x = 1
y = 2
z = 3

47
pa1-tests/core/bad_indentation.py.ast
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{
"kind" : "Program",
"location" : [ 2, 3, 3, 6 ],
"declarations" : [ ],
"statements" : [ {
"kind" : "AssignStmt",
"location" : [ 2, 3, 2, 7 ],
"targets" : [ {
"kind" : "Identifier",
"location" : [ 2, 3, 2, 3 ],
"name" : "y"
} ],
"value" : {
"kind" : "IntegerLiteral",
"location" : [ 2, 7, 2, 7 ],
"value" : 2
}
}, {
"kind" : "AssignStmt",
"location" : [ 3, 1, 3, 5 ],
"targets" : [ {
"kind" : "Identifier",
"location" : [ 3, 1, 3, 1 ],
"name" : "z"
} ],
"value" : {
"kind" : "IntegerLiteral",
"location" : [ 3, 5, 3, 5 ],
"value" : 3
}
} ],
"errors" : {
"errors" : [ {
"kind" : "CompilerError",
"location" : [ 2, 1, 2, 2 ],
"message" : "Parse error near token INDENT: ",
"syntax" : true
}, {
"kind" : "CompilerError",
"location" : [ 3, 1, 3, 0 ],
"message" : "Parse error near token DEDENT: ",
"syntax" : true
} ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

4
pa1-tests/core/bad_stmt.py
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1 + 2
3 == 4 or (not False && True)
5 + 6
7 << 8

65
pa1-tests/core/bad_stmt.py.ast
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{
"kind" : "Program",
"location" : [ 1, 1, 4, 7 ],
"declarations" : [ ],
"statements" : [ {
"kind" : "ExprStmt",
"location" : [ 1, 1, 1, 5 ],
"expr" : {
"kind" : "BinaryExpr",
"location" : [ 1, 1, 1, 5 ],
"left" : {
"kind" : "IntegerLiteral",
"location" : [ 1, 1, 1, 1 ],
"value" : 1
},
"operator" : "+",
"right" : {
"kind" : "IntegerLiteral",
"location" : [ 1, 5, 1, 5 ],
"value" : 2
}
}
}, {
"kind" : "ExprStmt",
"location" : [ 3, 1, 3, 5 ],
"expr" : {
"kind" : "BinaryExpr",
"location" : [ 3, 1, 3, 5 ],
"left" : {
"kind" : "IntegerLiteral",
"location" : [ 3, 1, 3, 1 ],
"value" : 5
},
"operator" : "+",
"right" : {
"kind" : "IntegerLiteral",
"location" : [ 3, 5, 3, 5 ],
"value" : 6
}
}
}, {
"kind" : "ExprStmt",
"location" : [ 4, 6, 4, 6 ],
"expr" : {
"kind" : "IntegerLiteral",
"location" : [ 4, 6, 4, 6 ],
"value" : 8
}
} ],
"errors" : {
"errors" : [ {
"kind" : "CompilerError",
"location" : [ 2, 22, 2, 22 ],
"message" : "Parse error near token UNRECOGNIZED: &",
"syntax" : true
}, {
"kind" : "CompilerError",
"location" : [ 4, 4, 4, 4 ],
"message" : "Parse error near token LT: <",
"syntax" : true
} ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

2
pa1-tests/core/chained_mixed_assignments.py
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x[0] = y = z.f = 1
z.g = y = x[0]

85
pa1-tests/core/chained_mixed_assignments.py.ast
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{
"kind" : "Program",
"location" : [ 1, 1, 2, 15 ],
"declarations" : [ ],
"statements" : [ {
"kind" : "AssignStmt",
"location" : [ 1, 1, 1, 18 ],
"targets" : [ {
"kind" : "IndexExpr",
"location" : [ 1, 1, 1, 4 ],
"list" : {
"kind" : "Identifier",
"location" : [ 1, 1, 1, 1 ],
"name" : "x"
},
"index" : {
"kind" : "IntegerLiteral",
"location" : [ 1, 3, 1, 3 ],
"value" : 0
}
}, {
"kind" : "Identifier",
"location" : [ 1, 8, 1, 8 ],
"name" : "y"
}, {
"kind" : "MemberExpr",
"location" : [ 1, 12, 1, 14 ],
"object" : {
"kind" : "Identifier",
"location" : [ 1, 12, 1, 12 ],
"name" : "z"
},
"member" : {
"kind" : "Identifier",
"location" : [ 1, 14, 1, 14 ],
"name" : "f"
}
} ],
"value" : {
"kind" : "IntegerLiteral",
"location" : [ 1, 18, 1, 18 ],
"value" : 1
}
}, {
"kind" : "AssignStmt",
"location" : [ 2, 1, 2, 14 ],
"targets" : [ {
"kind" : "MemberExpr",
"location" : [ 2, 1, 2, 3 ],
"object" : {
"kind" : "Identifier",
"location" : [ 2, 1, 2, 1 ],
"name" : "z"
},
"member" : {
"kind" : "Identifier",
"location" : [ 2, 3, 2, 3 ],
"name" : "g"
}
}, {
"kind" : "Identifier",
"location" : [ 2, 7, 2, 7 ],
"name" : "y"
} ],
"value" : {
"kind" : "IndexExpr",
"location" : [ 2, 11, 2, 14 ],
"list" : {
"kind" : "Identifier",
"location" : [ 2, 11, 2, 11 ],
"name" : "x"
},
"index" : {
"kind" : "IntegerLiteral",
"location" : [ 2, 13, 2, 13 ],
"value" : 0
}
}
} ],
"errors" : {
"errors" : [ ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

1
pa1-tests/core/chained_var_assignments.py
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x = y = z = 1

32
pa1-tests/core/chained_var_assignments.py.ast
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{
"kind" : "Program",
"location" : [ 1, 1, 1, 14 ],
"declarations" : [ ],
"statements" : [ {
"kind" : "AssignStmt",
"location" : [ 1, 1, 1, 13 ],
"targets" : [ {
"kind" : "Identifier",
"location" : [ 1, 1, 1, 1 ],
"name" : "x"
}, {
"kind" : "Identifier",
"location" : [ 1, 5, 1, 5 ],
"name" : "y"
}, {
"kind" : "Identifier",
"location" : [ 1, 9, 1, 9 ],
"name" : "z"
} ],
"value" : {
"kind" : "IntegerLiteral",
"location" : [ 1, 13, 1, 13 ],
"value" : 1
}
} ],
"errors" : {
"errors" : [ ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

4
pa1-tests/core/class_attr.py
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class Foo(object):
x:int = 1
f = Foo()

65
pa1-tests/core/class_attr.py.ast
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{
"kind" : "Program",
"location" : [ 1, 1, 4, 10 ],
"declarations" : [ {
"kind" : "ClassDef",
"location" : [ 1, 1, 2, 14 ],
"name" : {
"kind" : "Identifier",
"location" : [ 1, 7, 1, 9 ],
"name" : "Foo"
},
"superClass" : {
"kind" : "Identifier",
"location" : [ 1, 11, 1, 16 ],
"name" : "object"
},
"declarations" : [ {
"kind" : "VarDef",
"location" : [ 2, 5, 2, 13 ],
"var" : {
"kind" : "TypedVar",
"location" : [ 2, 5, 2, 9 ],
"identifier" : {
"kind" : "Identifier",
"location" : [ 2, 5, 2, 5 ],
"name" : "x"
},
"type" : {
"kind" : "ClassType",
"location" : [ 2, 7, 2, 9 ],
"className" : "int"
}
},
"value" : {
"kind" : "IntegerLiteral",
"location" : [ 2, 13, 2, 13 ],
"value" : 1
}
} ]
} ],
"statements" : [ {
"kind" : "AssignStmt",
"location" : [ 4, 1, 4, 9 ],
"targets" : [ {
"kind" : "Identifier",
"location" : [ 4, 1, 4, 1 ],
"name" : "f"
} ],
"value" : {
"kind" : "CallExpr",
"location" : [ 4, 5, 4, 9 ],
"function" : {
"kind" : "Identifier",
"location" : [ 4, 5, 4, 7 ],
"name" : "Foo"
},
"args" : [ ]
}
} ],
"errors" : {
"errors" : [ ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

5
pa1-tests/core/class_attr_get.py
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class Foo(object):
x:int = 1
f = Foo()
print(f.x)

91
pa1-tests/core/class_attr_get.py.ast
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{
"kind" : "Program",
"location" : [ 1, 1, 5, 11 ],
"declarations" : [ {
"kind" : "ClassDef",
"location" : [ 1, 1, 2, 14 ],
"name" : {
"kind" : "Identifier",
"location" : [ 1, 7, 1, 9 ],
"name" : "Foo"
},
"superClass" : {
"kind" : "Identifier",
"location" : [ 1, 11, 1, 16 ],
"name" : "object"
},
"declarations" : [ {
"kind" : "VarDef",
"location" : [ 2, 5, 2, 13 ],
"var" : {
"kind" : "TypedVar",
"location" : [ 2, 5, 2, 9 ],
"identifier" : {
"kind" : "Identifier",
"location" : [ 2, 5, 2, 5 ],
"name" : "x"
},
"type" : {
"kind" : "ClassType",
"location" : [ 2, 7, 2, 9 ],
"className" : "int"
}
},
"value" : {
"kind" : "IntegerLiteral",
"location" : [ 2, 13, 2, 13 ],
"value" : 1
}
} ]
} ],
"statements" : [ {
"kind" : "AssignStmt",
"location" : [ 4, 1, 4, 9 ],
"targets" : [ {
"kind" : "Identifier",
"location" : [ 4, 1, 4, 1 ],
"name" : "f"
} ],
"value" : {
"kind" : "CallExpr",
"location" : [ 4, 5, 4, 9 ],
"function" : {
"kind" : "Identifier",
"location" : [ 4, 5, 4, 7 ],
"name" : "Foo"
},
"args" : [ ]
}
}, {
"kind" : "ExprStmt",
"location" : [ 5, 1, 5, 10 ],
"expr" : {
"kind" : "CallExpr",
"location" : [ 5, 1, 5, 10 ],
"function" : {
"kind" : "Identifier",
"location" : [ 5, 1, 5, 5 ],
"name" : "print"
},
"args" : [ {
"kind" : "MemberExpr",
"location" : [ 5, 7, 5, 9 ],
"object" : {
"kind" : "Identifier",
"location" : [ 5, 7, 5, 7 ],
"name" : "f"
},
"member" : {
"kind" : "Identifier",
"location" : [ 5, 9, 5, 9 ],
"name" : "x"
}
} ]
}
} ],
"errors" : {
"errors" : [ ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

5
pa1-tests/core/class_attr_set.py
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class Foo(object):
x:int = 1
f = Foo()
f.x = 2

87
pa1-tests/core/class_attr_set.py.ast
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{
"kind" : "Program",
"location" : [ 1, 1, 5, 8 ],
"declarations" : [ {
"kind" : "ClassDef",
"location" : [ 1, 1, 2, 14 ],
"name" : {
"kind" : "Identifier",
"location" : [ 1, 7, 1, 9 ],
"name" : "Foo"
},
"superClass" : {
"kind" : "Identifier",
"location" : [ 1, 11, 1, 16 ],
"name" : "object"
},
"declarations" : [ {
"kind" : "VarDef",
"location" : [ 2, 5, 2, 13 ],
"var" : {
"kind" : "TypedVar",
"location" : [ 2, 5, 2, 9 ],
"identifier" : {
"kind" : "Identifier",
"location" : [ 2, 5, 2, 5 ],
"name" : "x"
},
"type" : {
"kind" : "ClassType",
"location" : [ 2, 7, 2, 9 ],
"className" : "int"
}
},
"value" : {
"kind" : "IntegerLiteral",
"location" : [ 2, 13, 2, 13 ],
"value" : 1
}
} ]
} ],
"statements" : [ {
"kind" : "AssignStmt",
"location" : [ 4, 1, 4, 9 ],
"targets" : [ {
"kind" : "Identifier",
"location" : [ 4, 1, 4, 1 ],
"name" : "f"
} ],
"value" : {
"kind" : "CallExpr",
"location" : [ 4, 5, 4, 9 ],
"function" : {
"kind" : "Identifier",
"location" : [ 4, 5, 4, 7 ],
"name" : "Foo"
},
"args" : [ ]
}
}, {
"kind" : "AssignStmt",
"location" : [ 5, 1, 5, 7 ],
"targets" : [ {
"kind" : "MemberExpr",
"location" : [ 5, 1, 5, 3 ],
"object" : {
"kind" : "Identifier",
"location" : [ 5, 1, 5, 1 ],
"name" : "f"
},
"member" : {
"kind" : "Identifier",
"location" : [ 5, 3, 5, 3 ],
"name" : "x"
}
} ],
"value" : {
"kind" : "IntegerLiteral",
"location" : [ 5, 7, 5, 7 ],
"value" : 2
}
} ],
"errors" : {
"errors" : [ ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

8
pa1-tests/core/class_constructor.py
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class Foo(object):
x:int = 0
def __init__(self:"Foo", x:int):
self.x = x
f = Foo(1)
print(f.x)

159
pa1-tests/core/class_constructor.py.ast
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{
"kind" : "Program",
"location" : [ 1, 1, 8, 11 ],
"declarations" : [ {
"kind" : "ClassDef",
"location" : [ 1, 1, 7, 0 ],
"name" : {
"kind" : "Identifier",
"location" : [ 1, 7, 1, 9 ],
"name" : "Foo"
},
"superClass" : {
"kind" : "Identifier",
"location" : [ 1, 11, 1, 16 ],
"name" : "object"
},
"declarations" : [ {
"kind" : "VarDef",
"location" : [ 2, 5, 2, 13 ],
"var" : {
"kind" : "TypedVar",
"location" : [ 2, 5, 2, 9 ],
"identifier" : {
"kind" : "Identifier",
"location" : [ 2, 5, 2, 5 ],
"name" : "x"
},
"type" : {
"kind" : "ClassType",
"location" : [ 2, 7, 2, 9 ],
"className" : "int"
}
},
"value" : {
"kind" : "IntegerLiteral",
"location" : [ 2, 13, 2, 13 ],
"value" : 0
}
}, {
"kind" : "FuncDef",
"location" : [ 4, 5, 5, 19 ],
"name" : {
"kind" : "Identifier",
"location" : [ 4, 9, 4, 16 ],
"name" : "__init__"
},
"params" : [ {
"kind" : "TypedVar",
"location" : [ 4, 18, 4, 27 ],
"identifier" : {
"kind" : "Identifier",
"location" : [ 4, 18, 4, 21 ],
"name" : "self"
},
"type" : {
"kind" : "ClassType",
"location" : [ 4, 23, 4, 27 ],
"className" : "Foo"
}
}, {
"kind" : "TypedVar",
"location" : [ 4, 30, 4, 34 ],
"identifier" : {
"kind" : "Identifier",
"location" : [ 4, 30, 4, 30 ],
"name" : "x"
},
"type" : {
"kind" : "ClassType",
"location" : [ 4, 32, 4, 34 ],
"className" : "int"
}
} ],
"returnType" : {
"kind" : "ClassType",
"location" : [ 4, 36, 4, 36 ],
"className" : "<None>"
},
"declarations" : [ ],
"statements" : [ {
"kind" : "AssignStmt",
"location" : [ 5, 9, 5, 18 ],
"targets" : [ {
"kind" : "MemberExpr",
"location" : [ 5, 9, 5, 14 ],
"object" : {
"kind" : "Identifier",
"location" : [ 5, 9, 5, 12 ],
"name" : "self"
},
"member" : {
"kind" : "Identifier",
"location" : [ 5, 14, 5, 14 ],
"name" : "x"
}
} ],
"value" : {
"kind" : "Identifier",
"location" : [ 5, 18, 5, 18 ],
"name" : "x"
}
} ]
} ]
} ],
"statements" : [ {
"kind" : "AssignStmt",
"location" : [ 7, 1, 7, 10 ],
"targets" : [ {
"kind" : "Identifier",
"location" : [ 7, 1, 7, 1 ],
"name" : "f"
} ],
"value" : {
"kind" : "CallExpr",
"location" : [ 7, 5, 7, 10 ],
"function" : {
"kind" : "Identifier",
"location" : [ 7, 5, 7, 7 ],
"name" : "Foo"
},
"args" : [ {
"kind" : "IntegerLiteral",
"location" : [ 7, 9, 7, 9 ],
"value" : 1
} ]
}
}, {
"kind" : "ExprStmt",
"location" : [ 8, 1, 8, 10 ],
"expr" : {
"kind" : "CallExpr",
"location" : [ 8, 1, 8, 10 ],
"function" : {
"kind" : "Identifier",
"location" : [ 8, 1, 8, 5 ],
"name" : "print"
},
"args" : [ {
"kind" : "MemberExpr",
"location" : [ 8, 7, 8, 9 ],
"object" : {
"kind" : "Identifier",
"location" : [ 8, 7, 8, 7 ],
"name" : "f"
},
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}
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}
} ],
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}
}

9
pa1-tests/core/class_method.py
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@ -0,0 +1,9 @@
class Foo(object):
x:int = 0
def set(self:"Foo", x:int) -> object:
self.x = x
f = Foo()
f.set(1)
print(f.x)

181
pa1-tests/core/class_method.py.ast
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@ -0,0 +1,181 @@
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38
pa1-tests/core/coverage.py
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@ -0,0 +1,38 @@
count:int = 0
def foo(s: str) -> int:
return len(s)
class bar(object):
p: bool = True
def baz(self:"bar", xx: [int]) -> str:
global count
x:int = 0
y:int = 1
def qux(y: int) -> object:
nonlocal x
if x > y:
x = -1
for x in xx:
self.p = x == 2
qux(0) # Yay! ChocoPy
count = count + 1
while x <= 0:
if self.p:
xx[0] = xx[1]
self.p = not self.p
x = x + 1
elif foo("Long"[0]) == 1:
return self is None
return "Nope"
print(bar().baz([1,2]))

613
pa1-tests/core/coverage.py.ast
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@ -0,0 +1,613 @@
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}

4
pa1-tests/core/def_func.py
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@ -0,0 +1,4 @@
def foo() -> int:
return 1
foo()

48
pa1-tests/core/def_func.py.ast
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@ -0,0 +1,48 @@
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}

4
pa1-tests/core/def_func_args.py
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@ -0,0 +1,4 @@
def foo(x:int, y:int) -> bool:
return x > y
foo(1,2)

92
pa1-tests/core/def_func_args.py.ast
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7
pa1-tests/core/def_func_global.py
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z:int = 0
def foo(x:int) -> bool:
global z
return x > z
foo(1)

105
pa1-tests/core/def_func_global.py.ast
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10
pa1-tests/core/def_func_nested.py
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def foo(x:int) -> bool:
a:int = 0
b:int = 1
def bar(y: int) -> int:
a:int = 2
return y
return bar(x) > a
foo(1)

187
pa1-tests/core/def_func_nested.py.ast
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11
pa1-tests/core/def_func_nonlocal.py
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def foo(x:int) -> bool:
a:int = 0
b:int = 1
def bar(y: int) -> int:
nonlocal a
a = 2
return y
return bar(x) > a
foo(1)

186
pa1-tests/core/def_func_nonlocal.py.ast
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1
pa1-tests/core/expr_if.py
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3 if 1 > 2 else 4

43
pa1-tests/core/expr_if.py.ast
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@ -0,0 +1,43 @@
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1
pa1-tests/core/expr_if_chained.py
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3 if 1 > 2 else 4 if 1 < 0 else 5

67
pa1-tests/core/expr_if_chained.py.ast
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1
pa1-tests/core/expr_index.py
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@ -0,0 +1 @@
a + b[i][j]

47
pa1-tests/core/expr_index.py.ast
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@ -0,0 +1,47 @@
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1
pa1-tests/core/expr_plus.py
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@ -0,0 +1 @@
1 + 2 + 3

39
pa1-tests/core/expr_plus.py.ast
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@ -0,0 +1,39 @@
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1
pa1-tests/core/expr_unary.py
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@ -0,0 +1 @@
-1

24
pa1-tests/core/expr_unary.py.ast
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5
pa1-tests/core/global.py
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x:int = 1
x = 2
print(x)

63
pa1-tests/core/global.py.ast
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@ -0,0 +1,63 @@
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"value" : {
"kind" : "IntegerLiteral",
"location" : [ 3, 5, 3, 5 ],
"value" : 2
}
}, {
"kind" : "ExprStmt",
"location" : [ 5, 1, 5, 8 ],
"expr" : {
"kind" : "CallExpr",
"location" : [ 5, 1, 5, 8 ],
"function" : {
"kind" : "Identifier",
"location" : [ 5, 1, 5, 5 ],
"name" : "print"
},
"args" : [ {
"kind" : "Identifier",
"location" : [ 5, 7, 5, 7 ],
"name" : "x"
} ]
}
} ],
"errors" : {
"errors" : [ ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

7
pa1-tests/core/literals.py
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True
False
1
None
"This is a string"
[1, 2, 3]

70
pa1-tests/core/literals.py.ast
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{
"kind" : "Program",
"location" : [ 1, 1, 6, 10 ],
"declarations" : [ ],
"statements" : [ {
"kind" : "ExprStmt",
"location" : [ 1, 1, 1, 4 ],
"expr" : {
"kind" : "BooleanLiteral",
"location" : [ 1, 1, 1, 4 ],
"value" : true
}
}, {
"kind" : "ExprStmt",
"location" : [ 2, 1, 2, 5 ],
"expr" : {
"kind" : "BooleanLiteral",
"location" : [ 2, 1, 2, 5 ],
"value" : false
}
}, {
"kind" : "ExprStmt",
"location" : [ 3, 1, 3, 1 ],
"expr" : {
"kind" : "IntegerLiteral",
"location" : [ 3, 1, 3, 1 ],
"value" : 1
}
}, {
"kind" : "ExprStmt",
"location" : [ 4, 1, 4, 4 ],
"expr" : {
"kind" : "NoneLiteral",
"location" : [ 4, 1, 4, 4 ]
}
}, {
"kind" : "ExprStmt",
"location" : [ 5, 1, 5, 18 ],
"expr" : {
"kind" : "StringLiteral",
"location" : [ 5, 1, 5, 18 ],
"value" : "This is a string"
}
}, {
"kind" : "ExprStmt",
"location" : [ 6, 1, 6, 9 ],
"expr" : {
"kind" : "ListExpr",
"location" : [ 6, 1, 6, 9 ],
"elements" : [ {
"kind" : "IntegerLiteral",
"location" : [ 6, 2, 6, 2 ],
"value" : 1
}, {
"kind" : "IntegerLiteral",
"location" : [ 6, 5, 6, 5 ],
"value" : 2
}, {
"kind" : "IntegerLiteral",
"location" : [ 6, 8, 6, 8 ],
"value" : 3
} ]
}
} ],
"errors" : {
"errors" : [ ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

1
pa1-tests/core/stmt_call.py
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@ -0,0 +1 @@
print(1)

28
pa1-tests/core/stmt_call.py.ast
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@ -0,0 +1,28 @@
{
"kind" : "Program",
"location" : [ 1, 1, 1, 9 ],
"declarations" : [ ],
"statements" : [ {
"kind" : "ExprStmt",
"location" : [ 1, 1, 1, 8 ],
"expr" : {
"kind" : "CallExpr",
"location" : [ 1, 1, 1, 8 ],
"function" : {
"kind" : "Identifier",
"location" : [ 1, 1, 1, 5 ],
"name" : "print"
},
"args" : [ {
"kind" : "IntegerLiteral",
"location" : [ 1, 7, 1, 7 ],
"value" : 1
} ]
}
} ],
"errors" : {
"errors" : [ ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

4
pa1-tests/core/stmt_for.py
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@ -0,0 +1,4 @@
x:int = 0
for x in [1, 2, 3]:
print(x)

76
pa1-tests/core/stmt_for.py.ast
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@ -0,0 +1,76 @@
{
"kind" : "Program",
"location" : [ 1, 1, 5, 1 ],
"declarations" : [ {
"kind" : "VarDef",
"location" : [ 1, 1, 1, 9 ],
"var" : {
"kind" : "TypedVar",
"location" : [ 1, 1, 1, 5 ],
"identifier" : {
"kind" : "Identifier",
"location" : [ 1, 1, 1, 1 ],
"name" : "x"
},
"type" : {
"kind" : "ClassType",
"location" : [ 1, 3, 1, 5 ],
"className" : "int"
}
},
"value" : {
"kind" : "IntegerLiteral",
"location" : [ 1, 9, 1, 9 ],
"value" : 0
}
} ],
"statements" : [ {
"kind" : "ForStmt",
"location" : [ 2, 1, 5, 1 ],
"identifier" : {
"kind" : "Identifier",
"location" : [ 2, 5, 2, 5 ],
"name" : "x"
},
"iterable" : {
"kind" : "ListExpr",
"location" : [ 2, 10, 2, 18 ],
"elements" : [ {
"kind" : "IntegerLiteral",
"location" : [ 2, 11, 2, 11 ],
"value" : 1
}, {
"kind" : "IntegerLiteral",
"location" : [ 2, 14, 2, 14 ],
"value" : 2
}, {
"kind" : "IntegerLiteral",
"location" : [ 2, 17, 2, 17 ],
"value" : 3
} ]
},
"body" : [ {
"kind" : "ExprStmt",
"location" : [ 3, 5, 3, 12 ],
"expr" : {
"kind" : "CallExpr",
"location" : [ 3, 5, 3, 12 ],
"function" : {
"kind" : "Identifier",
"location" : [ 3, 5, 3, 9 ],
"name" : "print"
},
"args" : [ {
"kind" : "Identifier",
"location" : [ 3, 11, 3, 11 ],
"name" : "x"
} ]
}
} ]
} ],
"errors" : {
"errors" : [ ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

3
pa1-tests/core/stmt_if.py
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@ -0,0 +1,3 @@
if True:
False

29
pa1-tests/core/stmt_if.py.ast
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@ -0,0 +1,29 @@
{
"kind" : "Program",
"location" : [ 1, 1, 4, 1 ],
"declarations" : [ ],
"statements" : [ {
"kind" : "IfStmt",
"location" : [ 1, 1, 4, 1 ],
"condition" : {
"kind" : "BooleanLiteral",
"location" : [ 1, 4, 1, 7 ],
"value" : true
},
"thenBody" : [ {
"kind" : "ExprStmt",
"location" : [ 2, 5, 2, 9 ],
"expr" : {
"kind" : "BooleanLiteral",
"location" : [ 2, 5, 2, 9 ],
"value" : false
}
} ],
"elseBody" : [ ]
} ],
"errors" : {
"errors" : [ ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

6
pa1-tests/core/stmt_if_elif.py
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@ -0,0 +1,6 @@
if 1 > 2:
print(1)
elif 3 == 4:
print(2)
elif True:
print(3)

112
pa1-tests/core/stmt_if_elif.py.ast
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@ -0,0 +1,112 @@
{
"kind" : "Program",
"location" : [ 1, 1, 7, 1 ],
"declarations" : [ ],
"statements" : [ {
"kind" : "IfStmt",
"location" : [ 1, 1, 7, 1 ],
"condition" : {
"kind" : "BinaryExpr",
"location" : [ 1, 4, 1, 8 ],
"left" : {
"kind" : "IntegerLiteral",
"location" : [ 1, 4, 1, 4 ],
"value" : 1
},
"operator" : ">",
"right" : {
"kind" : "IntegerLiteral",
"location" : [ 1, 8, 1, 8 ],
"value" : 2
}
},
"thenBody" : [ {
"kind" : "ExprStmt",
"location" : [ 2, 5, 2, 12 ],
"expr" : {
"kind" : "CallExpr",
"location" : [ 2, 5, 2, 12 ],
"function" : {
"kind" : "Identifier",
"location" : [ 2, 5, 2, 9 ],
"name" : "print"
},
"args" : [ {
"kind" : "IntegerLiteral",
"location" : [ 2, 11, 2, 11 ],
"value" : 1
} ]
}
} ],
"elseBody" : [ {
"kind" : "IfStmt",
"location" : [ 3, 1, 7, 1 ],
"condition" : {
"kind" : "BinaryExpr",
"location" : [ 3, 6, 3, 11 ],
"left" : {
"kind" : "IntegerLiteral",
"location" : [ 3, 6, 3, 6 ],
"value" : 3
},
"operator" : "==",
"right" : {
"kind" : "IntegerLiteral",
"location" : [ 3, 11, 3, 11 ],
"value" : 4
}
},
"thenBody" : [ {
"kind" : "ExprStmt",
"location" : [ 4, 5, 4, 12 ],
"expr" : {
"kind" : "CallExpr",
"location" : [ 4, 5, 4, 12 ],
"function" : {
"kind" : "Identifier",
"location" : [ 4, 5, 4, 9 ],
"name" : "print"
},
"args" : [ {
"kind" : "IntegerLiteral",
"location" : [ 4, 11, 4, 11 ],
"value" : 2
} ]
}
} ],
"elseBody" : [ {
"kind" : "IfStmt",
"location" : [ 5, 1, 7, 1 ],
"condition" : {
"kind" : "BooleanLiteral",
"location" : [ 5, 6, 5, 9 ],
"value" : true
},
"thenBody" : [ {
"kind" : "ExprStmt",
"location" : [ 6, 5, 6, 12 ],
"expr" : {
"kind" : "CallExpr",
"location" : [ 6, 5, 6, 12 ],
"function" : {
"kind" : "Identifier",
"location" : [ 6, 5, 6, 9 ],
"name" : "print"
},
"args" : [ {
"kind" : "IntegerLiteral",
"location" : [ 6, 11, 6, 11 ],
"value" : 3
} ]
}
} ],
"elseBody" : [ ]
} ]
} ]
} ],
"errors" : {
"errors" : [ ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

8
pa1-tests/core/stmt_if_elif_else.py
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if 1 > 2:
print(1)
elif 3 == 4:
print(2)
elif True:
print(3)
else:
print(4)

129
pa1-tests/core/stmt_if_elif_else.py.ast
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@ -0,0 +1,129 @@
{
"kind" : "Program",
"location" : [ 1, 1, 9, 1 ],
"declarations" : [ ],
"statements" : [ {
"kind" : "IfStmt",
"location" : [ 1, 1, 9, 1 ],
"condition" : {
"kind" : "BinaryExpr",
"location" : [ 1, 4, 1, 8 ],
"left" : {
"kind" : "IntegerLiteral",
"location" : [ 1, 4, 1, 4 ],
"value" : 1
},
"operator" : ">",
"right" : {
"kind" : "IntegerLiteral",
"location" : [ 1, 8, 1, 8 ],
"value" : 2
}
},
"thenBody" : [ {
"kind" : "ExprStmt",
"location" : [ 2, 5, 2, 12 ],
"expr" : {
"kind" : "CallExpr",
"location" : [ 2, 5, 2, 12 ],
"function" : {
"kind" : "Identifier",
"location" : [ 2, 5, 2, 9 ],
"name" : "print"
},
"args" : [ {
"kind" : "IntegerLiteral",
"location" : [ 2, 11, 2, 11 ],
"value" : 1
} ]
}
} ],
"elseBody" : [ {
"kind" : "IfStmt",
"location" : [ 3, 1, 9, 1 ],
"condition" : {
"kind" : "BinaryExpr",
"location" : [ 3, 6, 3, 11 ],
"left" : {
"kind" : "IntegerLiteral",
"location" : [ 3, 6, 3, 6 ],
"value" : 3
},
"operator" : "==",
"right" : {
"kind" : "IntegerLiteral",
"location" : [ 3, 11, 3, 11 ],
"value" : 4
}
},
"thenBody" : [ {
"kind" : "ExprStmt",
"location" : [ 4, 5, 4, 12 ],
"expr" : {
"kind" : "CallExpr",
"location" : [ 4, 5, 4, 12 ],
"function" : {
"kind" : "Identifier",
"location" : [ 4, 5, 4, 9 ],
"name" : "print"
},
"args" : [ {
"kind" : "IntegerLiteral",
"location" : [ 4, 11, 4, 11 ],
"value" : 2
} ]
}
} ],
"elseBody" : [ {
"kind" : "IfStmt",
"location" : [ 5, 1, 9, 1 ],
"condition" : {
"kind" : "BooleanLiteral",
"location" : [ 5, 6, 5, 9 ],
"value" : true
},
"thenBody" : [ {
"kind" : "ExprStmt",
"location" : [ 6, 5, 6, 12 ],
"expr" : {
"kind" : "CallExpr",
"location" : [ 6, 5, 6, 12 ],
"function" : {
"kind" : "Identifier",
"location" : [ 6, 5, 6, 9 ],
"name" : "print"
},
"args" : [ {
"kind" : "IntegerLiteral",
"location" : [ 6, 11, 6, 11 ],
"value" : 3
} ]
}
} ],
"elseBody" : [ {
"kind" : "ExprStmt",
"location" : [ 8, 5, 8, 12 ],
"expr" : {
"kind" : "CallExpr",
"location" : [ 8, 5, 8, 12 ],
"function" : {
"kind" : "Identifier",
"location" : [ 8, 5, 8, 9 ],
"name" : "print"
},
"args" : [ {
"kind" : "IntegerLiteral",
"location" : [ 8, 11, 8, 11 ],
"value" : 4
} ]
}
} ]
} ]
} ]
} ],
"errors" : {
"errors" : [ ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

5
pa1-tests/core/stmt_ifelse.py
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if True:
False
else:
True

37
pa1-tests/core/stmt_ifelse.py.ast
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{
"kind" : "Program",
"location" : [ 1, 1, 6, 1 ],
"declarations" : [ ],
"statements" : [ {
"kind" : "IfStmt",
"location" : [ 1, 1, 6, 1 ],
"condition" : {
"kind" : "BooleanLiteral",
"location" : [ 1, 4, 1, 7 ],
"value" : true
},
"thenBody" : [ {
"kind" : "ExprStmt",
"location" : [ 2, 5, 2, 9 ],
"expr" : {
"kind" : "BooleanLiteral",
"location" : [ 2, 5, 2, 9 ],
"value" : false
}
} ],
"elseBody" : [ {
"kind" : "ExprStmt",
"location" : [ 4, 5, 4, 8 ],
"expr" : {
"kind" : "BooleanLiteral",
"location" : [ 4, 5, 4, 8 ],
"value" : true
}
} ]
} ],
"errors" : {
"errors" : [ ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

4
pa1-tests/core/stmt_list_assign.py
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@ -0,0 +1,4 @@
x:int = None
x = [1, 2, 3]
x[0] = x[1]

88
pa1-tests/core/stmt_list_assign.py.ast
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{
"kind" : "Program",
"location" : [ 1, 1, 4, 12 ],
"declarations" : [ {
"kind" : "VarDef",
"location" : [ 1, 1, 1, 12 ],
"var" : {
"kind" : "TypedVar",
"location" : [ 1, 1, 1, 5 ],
"identifier" : {
"kind" : "Identifier",
"location" : [ 1, 1, 1, 1 ],
"name" : "x"
},
"type" : {
"kind" : "ClassType",
"location" : [ 1, 3, 1, 5 ],
"className" : "int"
}
},
"value" : {
"kind" : "NoneLiteral",
"location" : [ 1, 9, 1, 12 ]
}
} ],
"statements" : [ {
"kind" : "AssignStmt",
"location" : [ 3, 1, 3, 13 ],
"targets" : [ {
"kind" : "Identifier",
"location" : [ 3, 1, 3, 1 ],
"name" : "x"
} ],
"value" : {
"kind" : "ListExpr",
"location" : [ 3, 5, 3, 13 ],
"elements" : [ {
"kind" : "IntegerLiteral",
"location" : [ 3, 6, 3, 6 ],
"value" : 1
}, {
"kind" : "IntegerLiteral",
"location" : [ 3, 9, 3, 9 ],
"value" : 2
}, {
"kind" : "IntegerLiteral",
"location" : [ 3, 12, 3, 12 ],
"value" : 3
} ]
}
}, {
"kind" : "AssignStmt",
"location" : [ 4, 1, 4, 11 ],
"targets" : [ {
"kind" : "IndexExpr",
"location" : [ 4, 1, 4, 4 ],
"list" : {
"kind" : "Identifier",
"location" : [ 4, 1, 4, 1 ],
"name" : "x"
},
"index" : {
"kind" : "IntegerLiteral",
"location" : [ 4, 3, 4, 3 ],
"value" : 0
}
} ],
"value" : {
"kind" : "IndexExpr",
"location" : [ 4, 8, 4, 11 ],
"list" : {
"kind" : "Identifier",
"location" : [ 4, 8, 4, 8 ],
"name" : "x"
},
"index" : {
"kind" : "IntegerLiteral",
"location" : [ 4, 10, 4, 10 ],
"value" : 1
}
}
} ],
"errors" : {
"errors" : [ ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

3
pa1-tests/core/stmt_while.py
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while True:
pass

20
pa1-tests/core/stmt_while.py.ast
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@ -0,0 +1,20 @@
{
"kind" : "Program",
"location" : [ 1, 1, 4, 1 ],
"declarations" : [ ],
"statements" : [ {
"kind" : "WhileStmt",
"location" : [ 1, 1, 4, 1 ],
"condition" : {
"kind" : "BooleanLiteral",
"location" : [ 1, 7, 1, 10 ],
"value" : true
},
"body" : [ ]
} ],
"errors" : {
"errors" : [ ],
"kind" : "Errors",
"location" : [ 0, 0, 0, 0 ]
}
}

52
pa1-tests/extra/graph.py
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class weight(object):
value: int = 0
def __init__(self: "weight", value: int):
self.value = value
def __repr__(self: "weight"):
return "weight(" + str(self.value) + ")"
class graph(object):
matrix: [[weight]] = None
def __init__(self: "graph", num_vertices: int):
i: int = 0
j: int = 0
row: [weight] = None
self.matrix = []
while i < num_vertices:
j = 0
row = []
while j < num_vertices:
row = row + [weight(0)]
j = j + 1
self.matrix = self.matrix + [row]
i = i + 1
def add_edge(self: "graph", from_vertex: int, to_vertex: int, edge_weight: int):
pass
def print(self: "graph"):
for row in self.matrix:
print(row)
class undirectedgraph(graph):
def add_edge(self: "undirectedgraph", from_vertex: int, to_vertex: int, edge_weight: int):
self.matrix[from_vertex][to_vertex] = weight(edge_weight)
self.matrix[to_vertex][from_vertex] = weight(edge_weight)
class directedgraph(graph):
def add_edge(self: "undirectedgraph", from_vertex: int, to_vertex: int, edge_weight: int):
self.matrix[from_vertex][to_vertex] = weight(edge_weight)
g = undirectedgraph(3)
g.add_edge(0, 2, 100)
g.print()
directedgraph(3).print()

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pa1-tests/extra/graph.py.ast
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62
pa1-tests/extra/mergesort.py
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def append(a: [int], k: int) -> [int]:
return a + [k]
def extend(a: [int], b: [int], b_start: int, b_end: int) -> [int]:
extended: [int] = None
i: int = 0
extended = a
i = b_start
while i < b_end:
extended = append(extended, b[i])
i = i + 1
return extended
def merge(left: [int], right: [int]) -> [int]:
merged: [int] = None
i: int = 0
j: int = 0
merged = []
while i < len(left) and j < len(right):
if left[i] < right[j]:
merged = append(merged, left[i])
i = i + 1
else:
merged = append(merged, right[j])
j = j + 1
if i < len(left):
merged = extend(merged, left, i, len(left))
if j < len(right):
merged = extend(merged, right, j, len(right))
return merged
def mergesort(a: [int]) -> [int]:
mid: int = 0
left: [int] = None
right: [int] = None
if len(a) < 2:
return a
mid = len(a) // 2
left = extend([], a, 0, mid)
right = extend([], a, mid, len(a))
left = mergesort(left)
right = mergesort(right)
return merge(left, right)
initial: [int] = None
ordered: [int] = None
initial = [2, 7, 3, 11, 5]
ordered = mergesort(initial)
print(ordered)

1262
pa1-tests/extra/mergesort.py.ast
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45
pa1-tests/extra/nesting.py
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class s(object):
t: object = None
class r(object):
sobj: s = None
class q(object):
robj: r = None
class p(q):
def f(self: "p") -> object:
return self.robj.sobj.t
def a() -> int:
def b() -> int:
def c() -> int:
def d() -> int:
def e() -> int:
return 1
return e()
return d()
return c()
return b()
def w():
def x():
def y():
def z():
4
3
2
1
xs: [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[int]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]] = None
xs = [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[1]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
if 1:
if 2:
if 3:
if 4:
True
elif -3:
False
else:
False

799
pa1-tests/extra/nesting.py.ast
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@ -0,0 +1,799 @@
{
"kind" : "Program",
"location" : [ 1, 1, 46, 1 ],
"declarations" : [ {
"kind" : "ClassDef",
"location" : [ 1, 1, 2, 21 ],
"name" : {
"kind" : "Identifier",
"location" : [ 1, 7, 1, 7 ],
"name" : "s"
},
"superClass" : {
"kind" : "Identifier",
"location" : [ 1, 9, 1, 14 ],
"name" : "object"
},
"declarations" : [ {
"kind" : "VarDef",
"location" : [ 2, 5, 2, 20 ],
"var" : {
"kind" : "TypedVar",
"location" : [ 2, 5, 2, 13 ],
"identifier" : {
"kind" : "Identifier",
"location" : [ 2, 5, 2, 5 ],
"name" : "t"
},
"type" : {
"kind" : "ClassType",
"location" : [ 2, 8, 2, 13 ],
"className" : "object"
}
},
"value" : {
"kind" : "NoneLiteral",
"location" : [ 2, 17, 2, 20 ]
}
} ]
}, {
"kind" : "ClassDef",
"location" : [ 4, 1, 5, 19 ],
"name" : {
"kind" : "Identifier",
"location" : [ 4, 7, 4, 7 ],
"name" : "r"
},
"superClass" : {
"kind" : "Identifier",
"location" : [ 4, 9, 4, 14 ],
"name" : "object"
},
"declarations" : [ {
"kind" : "VarDef",
"location" : [ 5, 5, 5, 18 ],
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"kind" : "Errors",
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}
}

23
pa1-tests/run-tests.sh
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@ -0,0 +1,23 @@
#!/usr/bin/env bash
set -o errexit
set -o nounset
set -o pipefail
JAVA="java -cp pa1-tests/chocopy-ref.jar:target/assignment.jar chocopy.ChocoPy"
echo "# CORE TESTS"
${JAVA} --pass=s --test --dir pa1-tests/core
echo
echo "# EXTRA TESTS"
${JAVA} --pass=s --test --dir pa1-tests/extra
echo
echo "# STUDENT TESTS"
function regen_ast_and_test {
${JAVA} --pass=r "${1}" --out "${1}.ast" 2>/dev/null 1>&2
${JAVA} --pass=s --test "${1}"
}
regen_ast_and_test src/test/data/pa1/student_contributed/good.py
regen_ast_and_test src/test/data/pa1/student_contributed/bad.py

516
src/main/cup/chocopy/pa1/ChocoPy.cup
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@ -0,0 +1,516 @@
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java_cup.runtime.*;
import chocopy.common.astnodes.*;
/* The following code section is copied verbatim to the generated
* parser class. */
parser code {:
/* The following fields and methods deal with error reporting
* Avoid changing these unless you know what you are doing. */
/** Node that accumulates error messages to be added to the Program
* node produced as a result. */
public final Errors errors = new Errors(new ArrayList<>());
/** Return the Program node that results from parsing the stream of
* tokens produced by lexical analysis. In the case of syntax errors,
* the program may be empty, but will have error messages. */
public Program parseProgram(boolean debug) {
try {
Symbol result = debug ? debug_parse() : parse();
if (result == null || !(result.value instanceof Program)) {
return new Program(new Location(0, 0), new Location(0, 0),
new ArrayList<Declaration>(),
new ArrayList<Stmt>(),
errors);
} else {
return (Program) result.value;
}
} catch (RuntimeException excp) {
throw excp;
} catch (Exception excp) {
String msg =
String.format("Internal parser error detected: %s%n", excp);
throw new AssertionError(msg);
}
}
@Override
public SymbolFactory getSymbolFactory() {
return ((ChocoPyLexer) getScanner()).symbolFactory;
}
@Override
public void syntax_error(Symbol cur_token) {
String token = symbl_name_from_id(cur_token.sym);
String text = ((ChocoPyLexer) getScanner()).yytext();
errors.syntaxError(
((ComplexSymbolFactory.ComplexSymbol) cur_token).xleft,
((ComplexSymbolFactory.ComplexSymbol) cur_token).xright,
"Parse error near token %s: %s", token, text);
}
@Override
public void unrecovered_syntax_error(Symbol cur_token) {
/* Do not die */
}
:}
/**************************************************************************
* FEEL FREE TO MODIFY ANYTHING BELOW THIS LINE
*
* The rules provided below parse expressions of the form <INT> + <INT> + ...
* You can re-use these rules or edit them as you wish. The start rule
* should return a node of type Program.
*
* Tips: Production rules are usually followed by action code that will be
* copied to the generated parser to be executed immediately after a reduce
* operation; that is, when a production rule has been matched. You can name
* a nonterminal or terminal symbol in a production rule using the colon
* notation, e.g. expr_stmt ::= expr:e, to get the AST node for the matched
* expression. In the action code, `e` will be a variable of whatever type
* has been declared for the corresponding nonterminal, such as `Expr`.
* Therefore, you can construct an AST Node of type `ExprStmt` with `e` in the
* constructor: `new ExprStmt(exleft, exright, e)`
*
* The variables `exleft` and `exright` are automatically generated by CUP
* and contain Location objects for the start and end of the expression `e`.
* You can collect start and line number info for AST nodes by taking the
* location of the left end of the leftmost symbol in a rule and the
* location of the right end of the rightmost symbol. The auto-generated
* variables have names `<sym>xleft` and `<sym>xright`, where <sym> is the
* name given to the symbol using the colon notation.
*
* When you have nonterminals that are lists of things, e.g. List<Stmt> or
* List<Declaration>, it is helpful to get the leftmost and rightmost
* source location from within this list; we have provided some utility
* functions below to do just that.
**************************************************************************/
/* The following code section is copied verbatim to the class that performs
* production-rule actions. */
action code {:
/** Return a mutable list initially containing the single value ITEM. */
<T> List<T> single(T item) {
List<T> list = new ArrayList<>();
if (item != null) {
list.add(item);
}
return list;
}
/** If ITEM is non-null, appends it to the end of LIST. Then returns
* LIST. */
<T> List<T> combine(List<T> list, T item) {
if (item != null) {
list.add(item);
}
return list;
}
<T> List<T> combine(List<T> list, List<T> item) {
if (item != null) {
Iterator<T> it = item.iterator();
while(it.hasNext())
list.add(it.next());
}
return list;
}
/** Return a mutable empty list. */
<T> List<T> empty() {
return new ArrayList<T>();
}
class FuncBody {
public List<Declaration> fbd;
public List<Stmt> sl;
public FuncBody(List<Declaration> fbd, List<Stmt> sl){
this.fbd = fbd;
this.sl = sl;
}
}
/** Return the leftmost non-whitespace location in NODES, or null if NODES
* is empty. Assumes that the nodes of NODES are ordered in increasing
* order of location, from left to right. */
ComplexSymbolFactory.Location getLeft(List<? extends Node> nodes) {
if (nodes.isEmpty()) {
return null;
}
Node first = nodes.get(0);
return new ComplexSymbolFactory.Location(first.getLocation()[0],
first.getLocation()[1]);
}
/** Return the rightmost non-whitespace location in NODES, or null if NODES
* is empty. Assumes that the nodes of NODES are ordered in increasing
* order of location, from left to right. */
ComplexSymbolFactory.Location getRight(List<? extends Node> nodes) {
if (nodes.isEmpty()) {
return null;
}
Node last = nodes.get(nodes.size()-1);
return new ComplexSymbolFactory.Location(last.getLocation()[2],
last.getLocation()[3]);
}
:}
/* Terminal symbols (tokens returned by the lexer). The declaration
* terminal <identifier1>, <identifier2>, ...;
* declares each <identifieri> as the denotation of a distinct type terminal
* symbol for use in the grammar. The declaration
* terminal <type> <identifier1>, ...;
* does the same, and in addition indicates that the lexer supplies a
* semantic value of type <type> for these symbols that may be referenced
* in actions ( {: ... :} ).
*/
terminal INDENT;
terminal DEDENT;
terminal String ID;
terminal String STRING;
/* Terminal Delimiters */
terminal NEWLINE;
terminal String COLON;
terminal String COMMA;
/* Terminal Literals */
terminal Integer NUMBER;
terminal Boolean BOOL;
terminal String NONE;
/* Terminal Keywords */
terminal String IF;
terminal String ELSE;
terminal String ELIF;
terminal String WHILE;
terminal String CLASS;
terminal String DEF;
terminal String LAMBDA;
terminal String AS;
terminal String FOR;
terminal String GLOBAL;
terminal String IN;
terminal String NONLOCAL;
terminal String PASS;
terminal String RETURN;
terminal String ASSERT;
terminal String AWAIT;
terminal String BREAK;
terminal String CONTINUE;
terminal String DEL;
terminal String EXCEPT;
terminal String FINALLY;
terminal String FROM;
terminal String IMPORT;
terminal String RAISE;
terminal String TRY;
terminal String WITH;
terminal String YIELD;
/* Terminal Operators */
terminal String PLUS;
terminal String MINUS;
terminal String MUL;
terminal String DIV;
terminal String MOD;
terminal String GT;
terminal String LT;
terminal String EQUAL;
terminal String NEQ;
terminal String GEQ;
terminal String LEQ;
terminal String ASSIGN;
terminal String AND;
terminal String OR;
terminal String NOT;
terminal String DOT;
terminal String LPAR;
terminal String RPAR;
terminal String LBR;
terminal String RBR;
terminal String ARROW;
terminal String IS;
terminal String UMINUS;
/* Returned by the lexer for erroneous tokens. Since it does not appear in
* the grammar, it indicates a syntax error. */
terminal String UNRECOGNIZED;
/* Nonterminal symbols (defined in production rules below).
* As for terminal symbols,
* non terminal <type> <identifier1>, ..., <identifiern>;
* defines the listed nonterminal identifier symbols to have semantic values
* of type <type>. */
non terminal Program program;
non terminal List<Declaration> defs, program_head, opt_program_head, class_body, class_body_defs, fun_body_decs;
non terminal List<Stmt> stmt_list, opt_stmt_list, block, else_body;
non terminal Stmt stmt, simple_stmt;
non terminal Expr expr, pexpr, cexpr;
non terminal VarDef var_def;
non terminal ClassDef class_def;
non terminal FuncDef fun_def;
non terminal Literal literal;
non terminal StringLiteral bin_op, comp_op;
non terminal TypedVar typed_var;
non terminal TypeAnnotation type, ret_type;
non terminal Identifier identifier;
non terminal List<TypedVar> typed_vars;
non terminal GlobalDecl global_decl;
non terminal NonLocalDecl nonlocal_decl;
non terminal List<Expr> opt_target, expr_list;
non terminal Expr target;
non terminal MemberExpr member_expr;
non terminal IndexExpr index_expr;
non terminal FuncBody fun_body;
/* Precedences (lowest to highest) for resolving what would otherwise be
* ambiguities in the form of shift/reduce conflicts.. */
precedence left OR;
precedence left AND;
precedence left NOT;
precedence nonassoc EQUAL, NEQ, LT, GT, LEQ, GEQ, IS;
precedence left PLUS, MINUS;
precedence left MUL, DIV, MOD;
precedence left UMINUS;
precedence left DOT, COMMA, LBR, RBR;
precedence right IF, ELSE;
/* The start symbol. */
start with program;
/***** GRAMMAR RULES *****/
/* Rules are defined in the order given by the language reference */
/* program */
program ::= program_head:d opt_stmt_list:s
{:
ComplexSymbolFactory.Location left = d.isEmpty() ? getLeft(s) : getLeft(d);
if(left == null)
left = new ComplexSymbolFactory.Location(1,1);
RESULT = new Program(left, sxright, d, s, errors);
:}
;
program_head ::= program_head:d var_def:vd {: RESULT = combine(d, vd); :}
| program_head:d class_def:cd {: RESULT = combine(d, cd); :}
| program_head:d fun_def:fd {: RESULT = combine(d, fd); :}
| program_head:d error:e {: RESULT = d; :}
| {: RESULT = empty(); :}
;
opt_stmt_list ::= {: RESULT = empty(); :}
| stmt_list:s {: RESULT = s; :}
;
/* class_def */
class_def ::= CLASS:c identifier:id LPAR identifier:parentId RPAR COLON NEWLINE INDENT class_body:cb DEDENT {: RESULT = new ClassDef(cxleft, getRight(cb), id, parentId, cb); :};
/* class_body */
class_body ::= PASS NEWLINE {: RESULT = empty(); :}
| class_body_defs:defs {: RESULT = defs; :}
;
class_body_defs ::= class_body_defs:defs var_def:vd {: RESULT = combine(defs, vd); :}
| class_body_defs:defs fun_def:fd {: RESULT = combine(defs, fd); :}
| class_body_defs:defs error {: RESULT = defs; :}
| var_def:vd {: RESULT = single(vd); :}
| fun_def:fd {: RESULT = single(fd); :}
;
/* fun_def */
fun_def ::= DEF:def identifier:id LPAR typed_vars:params RPAR ret_type:rt COLON:col NEWLINE INDENT fun_body_decs:fbd stmt_list:sl DEDENT
{: TypeAnnotation _rt = rt;if((rt instanceof ClassType) && ((ClassType)rt).className == "<None>") _rt = new ClassType( colxright, colxright, "<None>");RESULT = new FuncDef(defxleft, getRight(sl), id, params, _rt, fbd, sl); :}
;
ret_type ::= ARROW type:t {: RESULT= t; :}
| {: RESULT= new ClassType(null, null,"<None>"); :}
;
typed_vars ::= typed_var:tv {: RESULT= single(tv); :}
| typed_vars:tvs COMMA typed_var:tv {: RESULT= combine(tvs, tv); :}
| typed_vars:tvs COMMA error {: RESULT= tvs; :}
| {: RESULT= empty(); :}
;
/* fun_body */
fun_body ::= fun_body_decs:fbd stmt_list:sl {: RESULT = new FuncBody(fbd, sl);:}
| fun_body_decs:fbd {: RESULT = new FuncBody(fbd, new ArrayList<Stmt>());:}
;
fun_body_decs ::= fun_body_decs:fbd global_decl:gd {: RESULT= combine(fbd, gd); :}
| fun_body_decs:fbd nonlocal_decl:nd {: RESULT= combine(fbd, nd); :}
| fun_body_decs:fbd var_def:vd {: RESULT= combine(fbd, vd); :}
| fun_body_decs:fbd fun_def:fd {: RESULT= combine(fbd, fd); :}
| fun_body_decs:fbd error {: RESULT= fbd; :}
| {: RESULT= empty(); :}
;
/* typed_var */
typed_var ::= identifier:id COLON type:t {: RESULT = new TypedVar(idxleft, txright, id, t); :};
/* type */
type ::= identifier:id {: RESULT = new ClassType(idxleft, idxright, id.name); :}
| STRING:str {: RESULT = new ClassType(strxleft, strxright, str); :}
| LBR:lbr type:t RBR:rbr {: RESULT = new ListType(lbrxleft, rbrxright, t); :}
;
/* global_decl */
global_decl ::= GLOBAL:g identifier:id NEWLINE {: RESULT = new GlobalDecl(gxleft, idxright, id); :};
/* nonlocal_decl */
nonlocal_decl ::= NONLOCAL:n identifier:id NEWLINE {: RESULT = new NonLocalDecl(nxleft, idxright, id); :};
/* var_def */
var_def ::= typed_var:t ASSIGN literal:l NEWLINE {: RESULT = new VarDef(txleft, lxright, t, l); :};
/* stmt */
stmt ::= simple_stmt:s NEWLINE {: RESULT = s; :}
| IF:i expr:cond COLON block:b else_body:elb {: RESULT = new IfStmt(ixleft, getRight(elb), cond, b, elb); :}
| WHILE:wh expr:cond COLON block:b {: RESULT = new WhileStmt(whxleft, getRight(b), cond, b); :}
| FOR:f identifier:id IN expr:e COLON block:b {: RESULT = new ForStmt(fxleft, getRight(b), id, e, b); :}
;
else_body ::= ELSE:el COLON block:b {: RESULT = b; :}
| ELIF:el expr:cond COLON block:b else_body:elb {: RESULT = single(new IfStmt(elxleft, getRight(elb), cond, b, elb)); :}
| {: RESULT = empty(); :}
;
/* simple_stmt */
simple_stmt ::= PASS:p {: RESULT = null; :}
| expr:e {: RESULT = new ExprStmt(exleft, exright, e); :}
| RETURN:r expr:e {: RESULT = new ReturnStmt(rxleft, exright, e); :}
| RETURN:r {: RESULT = new ReturnStmt(rxleft, rxright, null); :}
| opt_target:ot expr:e {: RESULT = new AssignStmt(getLeft(ot), exright, ot, e); :}
;
opt_target ::= opt_target:ot target:t ASSIGN {: RESULT = combine(ot, t); :}
| target:t ASSIGN {: RESULT = single(t); :}
;
/* block */
block ::= NEWLINE INDENT stmt_list:sl DEDENT {: RESULT = sl; :};
/* literal */
literal ::= NONE:n {: RESULT = new NoneLiteral(nxleft, nxright); :}
| BOOL:b {: RESULT = new BooleanLiteral(bxleft, bxright, b); :}
| NUMBER:n {: RESULT = new IntegerLiteral(nxleft, nxright, n); :}
| STRING:s {: RESULT = new StringLiteral(sxleft, sxright, s); :}
;
/* expr */
expr ::= cexpr:ce {: RESULT = ce; :}
| NOT:n expr:exp {: RESULT = new UnaryExpr(nxleft, expxright, n, exp); :}
| expr:e1 AND:a expr:e2 {: RESULT = new BinaryExpr(e1xleft, e2xright, e1, a, e2); :}
| expr:e1 OR:o expr:e2 {: RESULT = new BinaryExpr(e1xleft, e2xright, e1, o, e2); :}
| expr:e1 IF expr:e2 ELSE expr:e3 {: RESULT = new IfExpr(e1xleft, e3xright, e2, e1, e3); :}
;
/* cexpr */
cexpr ::= pexpr:pe {: RESULT = pe; :}
| pexpr:p1 comp_op:co cexpr:p2 {: RESULT = new BinaryExpr(p1xleft, p2xright, p1, co.value, p2); :}
;
/* pexpr */
pexpr ::= identifier:id {: RESULT = id; :}
| literal:l {: RESULT = l; :}
| LBR:lbr expr_list:l RBR:rbr {: RESULT = new ListExpr(lbrxleft, rbrxright, l); :}
| LPAR:lpar expr:e RPAR:rpar {: RESULT = e; :}
| member_expr:m {: RESULT = m; :}
| index_expr:i {: RESULT = i; :}
| member_expr:m LPAR expr_list:l RPAR:rpar {: RESULT = new MethodCallExpr(mxleft, rparxright, m, l); :}
| identifier:id LPAR expr_list:l RPAR:rpar {: RESULT = new CallExpr(idxleft, rparxright, id, l); :}
| pexpr:p1 PLUS:bo pexpr:p2 {: RESULT = new BinaryExpr(p1xleft, p2xright, p1, bo, p2); :}
| pexpr:p1 MINUS:bo pexpr:p2 {: RESULT = new BinaryExpr(p1xleft, p2xright, p1, bo, p2); :}
| pexpr:p1 MUL:bo pexpr:p2 {: RESULT = new BinaryExpr(p1xleft, p2xright, p1, bo, p2); :}
| pexpr:p1 DIV:bo pexpr:p2 {: RESULT = new BinaryExpr(p1xleft, p2xright, p1, bo, p2); :}
| pexpr:p1 MOD:bo pexpr:p2 {: RESULT = new BinaryExpr(p1xleft, p2xright, p1, bo, p2); :}
| MINUS:m pexpr:p {: RESULT = new UnaryExpr(mxleft, pxright, m, p); :} %prec UMINUS
;
expr_list ::= expr:e {: RESULT = single(e); :}
| expr_list:el COMMA expr:e {: RESULT = combine(el, e); :}
| {: RESULT = new ArrayList<Expr>(); :}
;
/* bin_op */ //We may still be able to use bin_op, so I left it here.
bin_op ::= PLUS:a {: RESULT = new StringLiteral(axleft, axright, "+"); :}
| MINUS:a {: RESULT = new StringLiteral(axleft, axright, "-"); :}
| MUL:a {: RESULT = new StringLiteral(axleft, axright, "*"); :}
| DIV:a {: RESULT = new StringLiteral(axleft, axright, "//"); :} //Section 2.6.3 in chocopy language reference
| MOD:a {: RESULT = new StringLiteral(axleft, axright, "%"); :}
;
/* comp_op */ //this might also need some change in order not to break left associativity
comp_op ::= EQUAL:a {: RESULT = new StringLiteral(axleft, axright, "=="); :}
| NEQ:a {: RESULT = new StringLiteral(axleft, axright, "!="); :}
| LEQ:a {: RESULT = new StringLiteral(axleft, axright, "<="); :}
| GEQ:a {: RESULT = new StringLiteral(axleft, axright, ">="); :}
| LT:a {: RESULT = new StringLiteral(axleft, axright, "<"); :}
| GT:a {: RESULT = new StringLiteral(axleft, axright, ">"); :}
| IS:a {: RESULT = new StringLiteral(axleft, axright, "is"); :}
;
/* member_expr */
member_expr ::= pexpr:p DOT identifier:id {: RESULT = new MemberExpr(pxleft, idxright, p, id); :}
;
/* index_expr */
index_expr ::= pexpr:p LBR expr:e RBR:rbr {: RESULT = new IndexExpr(pxleft, rbrxright, p, e); :}
;
/* target */
target ::= identifier:id {: RESULT = id; :}
| member_expr:m {: RESULT = m; :}
| index_expr:i {: RESULT = i; :}
;
/* Extras - rules below have not been given in language reference, we have them to ease implementation */
identifier ::= ID:idStr {: RESULT = new Identifier(idStrxleft, idStrxright, idStr); :};
stmt_list ::= stmt:s {: RESULT = single(s); :}
| stmt_list:l stmt:s {: RESULT = combine(l, s); :}
| stmt_list:l error {: RESULT = l; :}
/* If there is a syntax error in the source, this says to discard
* symbols from the parsing stack and perform reductions until
* there is a stmt_list on top of the stack, and then to discard
* input symbols until it is possible to shift again, reporting
* a syntax error. */
;

1
src/main/java/chocopy/common/Utils.java
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@ -6,6 +6,7 @@ import java.io.InputStreamReader;
import java.nio.charset.StandardCharsets;
import java.util.stream.Collectors;
/** Utility functions for general use. */
public class Utils {

23
src/main/java/chocopy/common/analysis/NodeAnalyzer.java
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@ -19,6 +19,29 @@ import chocopy.common.astnodes.*;
* <p>The class AbstractNodeAnalyzer provides empty default implementations for these methods.
*
* <p>The type T is the type of result returned by the encapsulated analysis.
=======
* This interface can be used to separate logic for various concrete
* classes in the AST class hierarchy.
* <p>
* The idea is that a phase of the analysis is encapsulated in a class
* that implements this interface, and contains an overriding of the
* analyze method for each concrete Node class that needs something
* other than default processing. Each concrete node class, C, implements
* a generic dispatch method that takes a NodeAnalyzer<T> argument and
* calls the overloading of analyze that takes an argument of type C.
* The effect is that anode.dispatch(anAnalyzer) executes the method
* anAnalyzer.analyze that is appropriate to aNode's dynamic type.
* As a result each NodeAnalyzer subtype encapsulates all
* implementations of a particular action on Nodes. Thus, it inverts
* the usual OO pattern in which the implementations of analysis A for
* each different class are scattered among the class bodies
* themselves as overridings of a method A on the Node class.
* <p>
* The class AbstractNodeAnalyzer provides empty default
* implementations for these methods.
* <p>
* The type T is the type of result returned by the encapsulated analysis.
>>>>>>> pa1/master
*/
public interface NodeAnalyzer<T> {

1
src/main/java/chocopy/common/astnodes/AssignStmt.java
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@ -5,6 +5,7 @@ import java_cup.runtime.ComplexSymbolFactory.Location;
import java.util.List;
/** Single and multiple assignments. */
public class AssignStmt extends Stmt {
/** List of left-hand sides. */

1
src/main/java/chocopy/common/astnodes/BinaryExpr.java
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@ -3,6 +3,7 @@ package chocopy.common.astnodes;
import chocopy.common.analysis.NodeAnalyzer;
import java_cup.runtime.ComplexSymbolFactory.Location;
/** <operand> <operator> <operand>. */
public class BinaryExpr extends Expr {

1
src/main/java/chocopy/common/astnodes/BooleanLiteral.java
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@ -3,6 +3,7 @@ package chocopy.common.astnodes;
import chocopy.common.analysis.NodeAnalyzer;
import java_cup.runtime.ComplexSymbolFactory.Location;
/** Literals True or False. */
public final class BooleanLiteral extends Literal {

1
src/main/java/chocopy/common/astnodes/CallExpr.java
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@ -5,6 +5,7 @@ import java_cup.runtime.ComplexSymbolFactory.Location;
import java.util.List;
/** A function call. */
public class CallExpr extends Expr {

1
src/main/java/chocopy/common/astnodes/ClassDef.java
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@ -5,6 +5,7 @@ import java_cup.runtime.ComplexSymbolFactory.Location;
import java.util.List;
/** A class definition. */
public class ClassDef extends Declaration {

1
src/main/java/chocopy/common/astnodes/ClassType.java
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@ -3,6 +3,7 @@ package chocopy.common.astnodes;
import chocopy.common.analysis.NodeAnalyzer;
import java_cup.runtime.ComplexSymbolFactory.Location;
/** A simple class type name. */
public final class ClassType extends TypeAnnotation {

2
src/main/java/chocopy/common/astnodes/CompilerError.java
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@ -7,6 +7,7 @@ import java_cup.runtime.ComplexSymbolFactory.Location;
import java.util.Arrays;
import java.util.Objects;
/** Represents a single error. Does not correspond to any Python source construct. */
public class CompilerError extends Node {
@ -49,6 +50,7 @@ public class CompilerError extends Node {
return analyzer.analyze(this);
}
/** The error message. */
public final String message;
/** True if this is a syntax error. */

2
src/main/java/chocopy/common/astnodes/Declaration.java
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@ -3,6 +3,7 @@ package chocopy.common.astnodes;
import com.fasterxml.jackson.annotation.JsonIgnore;
import java_cup.runtime.ComplexSymbolFactory.Location;
/** Base of all AST nodes representing definitions or declarations. */
public abstract class Declaration extends Node {
@ -11,6 +12,7 @@ public abstract class Declaration extends Node {
super(left, right);
}
/** Return the identifier defined by this Declaration. */
@JsonIgnore
public abstract Identifier getIdentifier();

3
src/main/java/chocopy/common/astnodes/Errors.java
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@ -7,6 +7,7 @@ import java_cup.runtime.ComplexSymbolFactory.Location;
import java.util.List;
/** Collects the error messages in a Program. There is exactly one per Program node. */
public class Errors extends Node {
@ -26,11 +27,13 @@ public class Errors extends Node {
allowMultipleErrors = true;
}
/** Return true iff there are any errors. */
public boolean hasErrors() {
return !this.errors.isEmpty();
}
/** Prevent multiple semantic errors on the same node. */
public void suppressMultipleErrors() {
allowMultipleErrors = false;

1
src/main/java/chocopy/common/astnodes/Expr.java
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@ -1,5 +1,6 @@
package chocopy.common.astnodes;
import chocopy.common.analysis.types.Type;
import com.fasterxml.jackson.annotation.JsonInclude;
import java_cup.runtime.ComplexSymbolFactory.Location;

1
src/main/java/chocopy/common/astnodes/ExprStmt.java
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@ -3,6 +3,7 @@ package chocopy.common.astnodes;
import chocopy.common.analysis.NodeAnalyzer;
import java_cup.runtime.ComplexSymbolFactory.Location;
/** Statements consisting of expressions. */
public final class ExprStmt extends Stmt {

1
src/main/java/chocopy/common/astnodes/ForStmt.java
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@ -5,6 +5,7 @@ import java_cup.runtime.ComplexSymbolFactory.Location;
import java.util.List;
/** For statements. */
public class ForStmt extends Stmt {
/** Control variable. */

1
src/main/java/chocopy/common/astnodes/FuncDef.java
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@ -5,6 +5,7 @@ import java_cup.runtime.ComplexSymbolFactory.Location;
import java.util.List;
/** Def statements. */
public class FuncDef extends Declaration {

1
src/main/java/chocopy/common/astnodes/GlobalDecl.java
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@ -3,6 +3,7 @@ package chocopy.common.astnodes;
import chocopy.common.analysis.NodeAnalyzer;
import java_cup.runtime.ComplexSymbolFactory.Location;
/** Declaration of global variable. */
public class GlobalDecl extends Declaration {

1
src/main/java/chocopy/common/astnodes/Identifier.java
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@ -3,6 +3,7 @@ package chocopy.common.astnodes;
import chocopy.common.analysis.NodeAnalyzer;
import java_cup.runtime.ComplexSymbolFactory.Location;
/** A simple identifier. */
public class Identifier extends Expr {

1
src/main/java/chocopy/common/astnodes/IfExpr.java
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@ -3,6 +3,7 @@ package chocopy.common.astnodes;
import chocopy.common.analysis.NodeAnalyzer;
import java_cup.runtime.ComplexSymbolFactory.Location;
/** Conditional expressions. */
public class IfExpr extends Expr {
/** Boolean condition. */

1
src/main/java/chocopy/common/astnodes/IfStmt.java
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@ -5,6 +5,7 @@ import java_cup.runtime.ComplexSymbolFactory.Location;
import java.util.List;
/** Conditional statement. */
public class IfStmt extends Stmt {
/** Test condition. */

1
src/main/java/chocopy/common/astnodes/IndexExpr.java
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@ -3,6 +3,7 @@ package chocopy.common.astnodes;
import chocopy.common.analysis.NodeAnalyzer;
import java_cup.runtime.ComplexSymbolFactory.Location;
/** List-indexing expression. */
public class IndexExpr extends Expr {

1
src/main/java/chocopy/common/astnodes/IntegerLiteral.java
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@ -3,6 +3,7 @@ package chocopy.common.astnodes;
import chocopy.common.analysis.NodeAnalyzer;
import java_cup.runtime.ComplexSymbolFactory.Location;
/** Integer numerals. */
public final class IntegerLiteral extends Literal {

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