# Program
Status: 🟢
Assertions: 4
```rustleaf
var num = 123;
var zero = 0;
var negative = -42;
assert(num == 123);
assert(zero == 0);
assert(negative == -42);
assert(num + zero == 123);
```
# Output
```
parse_program: starting
parse_program: parsing statement at position 0 (Var)
parse_statement: starting at position 0 (Var)
consume_token: position 0 consumed Var
consume_token: position 1 consumed Ident
consume_token: position 2 consumed Equal
parse_expression: starting at position 3 (Int(123))
consume_token: position 3 consumed Int
parse_primary: success - parsed numeric/string literal
parse_expression: success - parsed precedence expression
consume_token: position 4 consumed Semicolon
parse_statement: success - parsed var declaration
parse_program: parsing statement at position 5 (Var)
parse_statement: starting at position 5 (Var)
consume_token: position 5 consumed Var
consume_token: position 6 consumed Ident
consume_token: position 7 consumed Equal
parse_expression: starting at position 8 (Int(0))
consume_token: position 8 consumed Int
parse_primary: success - parsed numeric/string literal
parse_expression: success - parsed precedence expression
consume_token: position 9 consumed Semicolon
parse_statement: success - parsed var declaration
parse_program: parsing statement at position 10 (Var)
parse_statement: starting at position 10 (Var)
consume_token: position 10 consumed Var
consume_token: position 11 consumed Ident
consume_token: position 12 consumed Equal
parse_expression: starting at position 13 (Minus)
consume_token: position 13 consumed Minus
consume_token: position 14 consumed Int
parse_primary: success - parsed numeric/string literal
parse_expression: success - parsed precedence expression
consume_token: position 15 consumed Semicolon
parse_statement: success - parsed var declaration
parse_program: parsing statement at position 16 (Ident(assert))
parse_statement: starting at position 16 (Ident(assert))
consume_token: position 16 consumed Ident
parse_statement: falling back to expression statement
parse_expression: starting at position 16 (Ident(assert))
consume_token: position 16 consumed Ident
parse_primary: success - parsed identifier (assert)
consume_token: position 17 consumed LeftParen
parse_expression: starting at position 18 (Ident(num))
consume_token: position 18 consumed Ident
parse_primary: success - parsed identifier (num)
consume_token: position 19 consumed EqualEqual
consume_token: position 20 consumed Int
parse_primary: success - parsed numeric/string literal
parse_expression: success - parsed precedence expression
consume_token: position 21 consumed RightParen
parse_expression: success - parsed precedence expression
consume_token: position 22 consumed Semicolon
parse_program: parsing statement at position 23 (Ident(assert))
parse_statement: starting at position 23 (Ident(assert))
consume_token: position 23 consumed Ident
parse_statement: falling back to expression statement
parse_expression: starting at position 23 (Ident(assert))
consume_token: position 23 consumed Ident
parse_primary: success - parsed identifier (assert)
consume_token: position 24 consumed LeftParen
parse_expression: starting at position 25 (Ident(zero))
consume_token: position 25 consumed Ident
parse_primary: success - parsed identifier (zero)
consume_token: position 26 consumed EqualEqual
consume_token: position 27 consumed Int
parse_primary: success - parsed numeric/string literal
parse_expression: success - parsed precedence expression
consume_token: position 28 consumed RightParen
parse_expression: success - parsed precedence expression
consume_token: position 29 consumed Semicolon
parse_program: parsing statement at position 30 (Ident(assert))
parse_statement: starting at position 30 (Ident(assert))
consume_token: position 30 consumed Ident
parse_statement: falling back to expression statement
parse_expression: starting at position 30 (Ident(assert))
consume_token: position 30 consumed Ident
parse_primary: success - parsed identifier (assert)
consume_token: position 31 consumed LeftParen
parse_expression: starting at position 32 (Ident(negative))
consume_token: position 32 consumed Ident
parse_primary: success - parsed identifier (negative)
consume_token: position 33 consumed EqualEqual
consume_token: position 34 consumed Minus
consume_token: position 35 consumed Int
parse_primary: success - parsed numeric/string literal
parse_expression: success - parsed precedence expression
consume_token: position 36 consumed RightParen
parse_expression: success - parsed precedence expression
consume_token: position 37 consumed Semicolon
parse_program: parsing statement at position 38 (Ident(assert))
parse_statement: starting at position 38 (Ident(assert))
consume_token: position 38 consumed Ident
parse_statement: falling back to expression statement
parse_expression: starting at position 38 (Ident(assert))
consume_token: position 38 consumed Ident
parse_primary: success - parsed identifier (assert)
consume_token: position 39 consumed LeftParen
parse_expression: starting at position 40 (Ident(num))
consume_token: position 40 consumed Ident
parse_primary: success - parsed identifier (num)
consume_token: position 41 consumed Plus
consume_token: position 42 consumed Ident
parse_primary: success - parsed identifier (zero)
consume_token: position 43 consumed EqualEqual
consume_token: position 44 consumed Int
parse_primary: success - parsed numeric/string literal
parse_expression: success - parsed precedence expression
consume_token: position 45 consumed RightParen
parse_expression: success - parsed precedence expression
consume_token: position 46 consumed Semicolon
parse_program: parsed 7 statements
```
# Result
```rust
Ok(
Unit,
)
```
# Lex
```rust
Ok(
[
0: Token(Var),
1: Token(Ident, "num"),
2: Token(Equal),
3: Token(Int, "123"),
4: Token(Semicolon),
5: Token(Var),
6: Token(Ident, "zero"),
7: Token(Equal),
8: Token(Int, "0"),
9: Token(Semicolon),
10: Token(Var),
11: Token(Ident, "negative"),
12: Token(Equal),
13: Token(Minus),
14: Token(Int, "42"),
15: Token(Semicolon),
16: Token(Ident, "assert"),
17: Token(LeftParen),
18: Token(Ident, "num"),
19: Token(EqualEqual),
20: Token(Int, "123"),
21: Token(RightParen),
22: Token(Semicolon),
23: Token(Ident, "assert"),
24: Token(LeftParen),
25: Token(Ident, "zero"),
26: Token(EqualEqual),
27: Token(Int, "0"),
28: Token(RightParen),
29: Token(Semicolon),
30: Token(Ident, "assert"),
31: Token(LeftParen),
32: Token(Ident, "negative"),
33: Token(EqualEqual),
34: Token(Minus),
35: Token(Int, "42"),
36: Token(RightParen),
37: Token(Semicolon),
38: Token(Ident, "assert"),
39: Token(LeftParen),
40: Token(Ident, "num"),
41: Token(Plus),
42: Token(Ident, "zero"),
43: Token(EqualEqual),
44: Token(Int, "123"),
45: Token(RightParen),
46: Token(Semicolon),
47: Token(Eof)
],
)
```
# Parse
```rust
Ok(
Program(
[
VarDecl {
pattern: Variable(
"num",
),
value: Some(
Literal(
Int(
123,
),
),
),
},
VarDecl {
pattern: Variable(
"zero",
),
value: Some(
Literal(
Int(
0,
),
),
),
},
VarDecl {
pattern: Variable(
"negative",
),
value: Some(
Neg(
Literal(
Int(
42,
),
),
),
),
},
Expression(
FunctionCall(
Identifier(
"assert",
),
[
Eq(
Identifier(
"num",
),
Literal(
Int(
123,
),
),
),
],
),
),
Expression(
FunctionCall(
Identifier(
"assert",
),
[
Eq(
Identifier(
"zero",
),
Literal(
Int(
0,
),
),
),
],
),
),
Expression(
FunctionCall(
Identifier(
"assert",
),
[
Eq(
Identifier(
"negative",
),
Neg(
Literal(
Int(
42,
),
),
),
),
],
),
),
Expression(
FunctionCall(
Identifier(
"assert",
),
[
Eq(
Add(
Identifier(
"num",
),
Identifier(
"zero",
),
),
Literal(
Int(
123,
),
),
),
],
),
),
],
),
)
```
# Eval
```rust
Ok(
RustValue(<unknown>),
)
```