# Program
Status: 🟢
Assertions: 1
```rustleaf
var name = "World";
var result = "Hello ${name}!
This is a multiline string with interpolation.";
print(result);
assert(result == "Hello World!
This is a multiline string with interpolation.");
```
# 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 (String(World))
consume_token: position 3 consumed String
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 (StringPart(Hello ))
parse_primary: success - parsing interpolated string
consume_token: position 8 consumed StringPart
consume_token: position 9 consumed InterpolationStart
parse_expression: starting at position 10 (Ident(name))
consume_token: position 10 consumed Ident
parse_primary: success - parsed identifier (name)
parse_expression: success - parsed precedence expression
consume_token: position 11 consumed InterpolationEnd
consume_token: position 12 consumed StringPart
parse_expression: success - parsed precedence expression
consume_token: position 13 consumed Semicolon
parse_statement: success - parsed var declaration
parse_program: parsing statement at position 14 (Ident(print))
parse_statement: starting at position 14 (Ident(print))
consume_token: position 14 consumed Ident
parse_statement: falling back to expression statement
parse_expression: starting at position 14 (Ident(print))
consume_token: position 14 consumed Ident
parse_primary: success - parsed identifier (print)
consume_token: position 15 consumed LeftParen
parse_expression: starting at position 16 (Ident(result))
consume_token: position 16 consumed Ident
parse_primary: success - parsed identifier (result)
parse_expression: success - parsed precedence expression
consume_token: position 17 consumed RightParen
parse_expression: success - parsed precedence expression
consume_token: position 18 consumed Semicolon
parse_program: parsing statement at position 19 (Ident(assert))
parse_statement: starting at position 19 (Ident(assert))
consume_token: position 19 consumed Ident
parse_statement: falling back to expression statement
parse_expression: starting at position 19 (Ident(assert))
consume_token: position 19 consumed Ident
parse_primary: success - parsed identifier (assert)
consume_token: position 20 consumed LeftParen
parse_expression: starting at position 21 (Ident(result))
consume_token: position 21 consumed Ident
parse_primary: success - parsed identifier (result)
consume_token: position 22 consumed EqualEqual
consume_token: position 23 consumed String
parse_primary: success - parsed numeric/string literal
parse_expression: success - parsed precedence expression
consume_token: position 24 consumed RightParen
parse_expression: success - parsed precedence expression
consume_token: position 25 consumed Semicolon
parse_program: parsed 4 statements
Hello World!
This is a multiline string with interpolation.
```
# Result
```rust
Ok(
Unit,
)
```
# Lex
```rust
Ok(
[
0: Token(Var),
1: Token(Ident, "name"),
2: Token(Equal),
3: Token(String, "World"),
4: Token(Semicolon),
5: Token(Var),
6: Token(Ident, "result"),
7: Token(Equal),
8: Token(StringPart, "Hello "),
9: Token(InterpolationStart),
10: Token(Ident, "name"),
11: Token(InterpolationEnd),
12: Token(StringPart, "!\nThis is a multiline string with interpolation."),
13: Token(Semicolon),
14: Token(Ident, "print"),
15: Token(LeftParen),
16: Token(Ident, "result"),
17: Token(RightParen),
18: Token(Semicolon),
19: Token(Ident, "assert"),
20: Token(LeftParen),
21: Token(Ident, "result"),
22: Token(EqualEqual),
23: Token(String, "Hello World!\nThis is a multiline string with interpolation."),
24: Token(RightParen),
25: Token(Semicolon),
26: Token(Eof)
],
)
```
# Parse
```rust
Ok(
Program(
[
VarDecl {
pattern: Variable(
"name",
),
value: Some(
Literal(
String(
"World",
),
),
),
},
VarDecl {
pattern: Variable(
"result",
),
value: Some(
InterpolatedString(
[
Text(
"Hello ",
),
Expression(
Identifier(
"name",
),
),
Text(
"!\nThis is a multiline string with interpolation.",
),
],
),
),
},
Expression(
FunctionCall(
Identifier(
"print",
),
[
Identifier(
"result",
),
],
),
),
Expression(
FunctionCall(
Identifier(
"assert",
),
[
Eq(
Identifier(
"result",
),
Literal(
String(
"Hello World!\nThis is a multiline string with interpolation.",
),
),
),
],
),
),
],
),
)
```
# Eval
```rust
Ok(
RustValue(<unknown>),
)
```