thalir-core 0.1.0

Core IR types and builders for ThalIR smart contract analysis
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144

#![allow(unused_imports)]
#![allow(unused_variables)]

use num_bigint::BigUint;
use thalir_core::{
    block::BlockId,
    builder::{IRBuilder, InstBuilder, InstBuilderExt},
    types::Type,
};

fn main() {
    println!("Building Simple Storage contract IR...\n");

    let mut builder = IRBuilder::new();
    let mut contract = builder.contract("SimpleStorage");

    contract.state_variable("storedValue", Type::Uint(256), 0);

    build_setter(&mut contract);

    build_getter(&mut contract);

    build_complex_function(&mut contract);

    contract.build().unwrap();

    let stats = builder.stats();
    println!("\n=== IR Construction Complete ===");
    println!("Contracts: {}", stats.contracts);
    println!("Functions: {}", stats.functions);
    println!("Blocks: {}", stats.blocks);
    println!("Instructions: {}", stats.instructions);

    let registry = builder.registry();
    let simple_storage = registry.get_contract("SimpleStorage").unwrap();

    println!("\n=== Contract Details ===");
    println!("Contract: {}", simple_storage.name);
    println!(
        "Storage slots: {}",
        simple_storage.storage_layout.slots.len()
    );
    println!("Functions:");
    for (name, func) in &simple_storage.functions {
        println!(
            "  - {} ({} params, {} returns)",
            name,
            func.signature.params.len(),
            func.signature.returns.len()
        );
    }
}

fn build_setter(contract: &mut thalir_core::builder::ContractBuilder) {
    println!("Building setter function...");

    let mut func = contract.function("setValue");
    func.param("newValue", Type::Uint(256));

    let new_value = func.get_param(0);
    let mut entry = func.entry_block();

    entry.storage_store(BigUint::from(0u32), new_value);

    entry.return_void().unwrap();

    func.build().unwrap();
    println!("   setValue function built");
}

fn build_getter(contract: &mut thalir_core::builder::ContractBuilder) {
    println!("Building getter function...");

    let mut func = contract.function("getValue");
    func.returns(Type::Uint(256));

    let mut entry = func.entry_block();

    let value = entry.storage_load(BigUint::from(0u32));

    entry.return_value(value);

    func.build().unwrap();
    println!("   getValue function built");
}

fn build_complex_function(contract: &mut thalir_core::builder::ContractBuilder) {
    println!("Building complex function with control flow...");

    let mut func = contract.function("processValue");
    func.param("input", Type::Uint(256))
        .returns(Type::Uint(256));

    let input = func.get_param(0);

    let check_block_id = func.create_block_id();
    let increment_block_id = func.create_block_id();
    let decrement_block_id = func.create_block_id();
    let final_block_id = func.create_block_id();

    let stored_value = {
        let mut entry = func.entry_block();
        let value = entry.storage_load(BigUint::from(0u32));
        entry.jump(check_block_id);
        value
    };

    {
        let mut check_block = func.block("check");
        let condition = check_block.gt(input.clone(), stored_value.clone());
        check_block.branch(condition, increment_block_id, decrement_block_id);
    }

    let inc_result = {
        let mut inc_block = func.block("increment");
        let one = inc_block.constant_uint(1, 256);
        let result = inc_block.add(input.clone(), one, Type::Uint(256));
        inc_block.jump(final_block_id);
        result
    };

    let dec_result = {
        let mut dec_block = func.block("decrement");
        let one = dec_block.constant_uint(1, 256);
        let result = dec_block.sub(input.clone(), one, Type::Uint(256));
        dec_block.jump(final_block_id);
        result
    };

    {
        let mut final_block = func.block("final");
        let result = final_block.phi(vec![
            (increment_block_id, inc_result),
            (decrement_block_id, dec_result),
        ]);

        final_block.storage_store(BigUint::from(0u32), result.clone());

        final_block.return_value(result);
    }

    func.build().unwrap();
    println!("   processValue function built with {} blocks", 5);
}