jetcrab\vm/
frame.rs

1use crate::vm::handle::FunctionHandle;
2use crate::vm::types::{ArgIndex, CodeAddress, ConstantIndex, FramePointer};
3use crate::vm::value::Value;
4use std::collections::HashMap;
5
6#[derive(Debug, Clone)]
7pub struct Frame {
8    pub return_address: CodeAddress,
9    pub arg_count: ArgIndex,
10    pub base_pointer: FramePointer,
11    pub arguments: Vec<Value>,
12    pub closure_vars: HashMap<String, Value>,
13    pub function_handle: Option<FunctionHandle>,
14    pub this_value: Option<Value>,
15    pub constants: Vec<Value>,
16}
17
18impl Frame {
19    pub fn new() -> Self {
20        Self {
21            return_address: CodeAddress::new(0),
22            arg_count: ArgIndex::new(0),
23            base_pointer: FramePointer::new(0),
24            arguments: Vec::new(),
25            closure_vars: HashMap::new(),
26            function_handle: None,
27            this_value: None,
28            constants: Vec::new(),
29        }
30    }
31
32    pub fn with_return_address(return_address: CodeAddress) -> Self {
33        Self {
34            return_address,
35            arg_count: ArgIndex::new(0),
36            base_pointer: FramePointer::new(0),
37            arguments: Vec::new(),
38            closure_vars: HashMap::new(),
39            function_handle: None,
40            this_value: None,
41            constants: Vec::new(),
42        }
43    }
44
45    pub fn with_constants(constants: Vec<Value>) -> Self {
46        Self {
47            return_address: CodeAddress::new(0),
48            arg_count: ArgIndex::new(0),
49            base_pointer: FramePointer::new(0),
50            arguments: Vec::new(),
51            closure_vars: HashMap::new(),
52            function_handle: None,
53            this_value: None,
54            constants,
55        }
56    }
57
58    pub fn get_constant(&self, index: ConstantIndex) -> Option<Value> {
59        let idx = usize::from(index);
60        self.constants.get(idx).cloned()
61    }
62
63    pub fn set_constants(&mut self, constants: Vec<Value>) {
64        self.constants = constants;
65    }
66}
67
68impl Default for Frame {
69    fn default() -> Self {
70        Self {
71            return_address: CodeAddress::new(0),
72            arg_count: ArgIndex::new(0),
73            base_pointer: FramePointer::new(0),
74            arguments: Vec::new(),
75            closure_vars: HashMap::new(),
76            function_handle: None,
77            this_value: None,
78            constants: Vec::new(),
79        }
80    }
81}
jetcrab\vm/frame.rs

jetcrab\vm/
frame.rs
