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bytecode2 (#2)

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Reviewed-on: #2
This commit was merged in pull request #2.
This commit is contained in:
Andre Wagner
2026-04-28 19:50:48 -05:00
parent 3f097b0ba8
commit d8130272a0
11 changed files with 529 additions and 68 deletions
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144
src/bytecode/tests.cc
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@@ -1,9 +1,12 @@
#include "gtest/gtest.h"
#include "gmock/gmock.h"
#include <cstring>
#include <functional>
#include "bytearray.hh"
#include "bytecodeprototype.hh"
#include "bytecode.hh"
using namespace tyche;
@@ -18,26 +21,145 @@ TEST(ByteArray, ByteArray)
#define TESTX(a, ...) test([](ByteArray& ba) { a; }, std::vector<uint8_t>({ __VA_ARGS__ }));
TESTX(ba.add_byte(1, 0xab), 0x00, 0xab)
TESTX(ba.set_byte(1, 0xab), 0x00, 0xab)
ByteArray ba;
ba.add_byte(1, 0xab); ASSERT_EQ(ba.get_byte(1), 0xab);
ba.set_byte(1, 0xab); ASSERT_EQ(ba.get_byte(1), 0xab);
ba.add_int(1, 12); ASSERT_EQ(ba.get_int(1), std::make_pair(12, 1));
ba.add_int(1, -12); ASSERT_EQ(ba.get_int(1), std::make_pair(-12, 1));
ba.add_int(1, 5000); ASSERT_EQ(ba.get_int(1), std::make_pair(5000, 2));
ba.add_int(1, 5000300); ASSERT_EQ(ba.get_int(1), std::make_pair(5000300, 4));
ba.add_int(1, -5000300); ASSERT_EQ(ba.get_int(1), std::make_pair(-5000300, 4));
ba.set_int(1, 12); ASSERT_EQ(ba.get_int(1), std::make_pair(12, 1));
ba.set_int(1, -12); ASSERT_EQ(ba.get_int(1), std::make_pair(-12, 1));
ba.set_int(1, 5000); ASSERT_EQ(ba.get_int(1), std::make_pair(5000, 2));
ba.set_int(1, 5000300); ASSERT_EQ(ba.get_int(1), std::make_pair(5000300, 4));
ba.set_int(1, -5000300); ASSERT_EQ(ba.get_int(1), std::make_pair(-5000300, 4));
ba.add_float(1, 3.14); ASSERT_FLOAT_EQ(ba.get_float(1).first, 3.14);
ba.add_float(1, -3.14); ASSERT_FLOAT_EQ(ba.get_float(1).first, -3.14);
ba.add_float(1, -5000300.1324); ASSERT_FLOAT_EQ(ba.get_float(1).first, -5000300.1324);
ba.set_float(1, 3.14); ASSERT_FLOAT_EQ(ba.get_float(1), 3.14);
ba.set_float(1, -3.14); ASSERT_FLOAT_EQ(ba.get_float(1), -3.14);
ba.set_float(1, -5000300.1324); ASSERT_FLOAT_EQ(ba.get_float(1), -5000300.1324);
ba.add_string(1, "Hello world!"); ASSERT_EQ(ba.get_string(1), std::make_pair("Hello world!", 13));
ba.set_string(1, "Hello world!"); ASSERT_EQ(ba.get_string(1), std::make_pair("Hello world!", 13));
#undef TESTX
}
TEST(Bytecode, Constants)
{
BytecodePrototype bp;
bp.constants.emplace_back(42);
bp.constants.emplace_back("HELLO");
std::vector<uint8_t> expected = {
// header
0x38, 0xc1, 0xb3, 0x74, // magic
0x01, 0x00, 0x00, 0x00, // version
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
// index
0x50, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, // constant index
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // function undex
0x58, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, // raw constants
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // raw code
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
// constant indexes
0x00, 0x00, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00,
// constant values
0x54, 'H', 'E', 'L', 'L', 'O', 0x00
};
ByteArray ba = Bytecode::generate(bp);
// print(ba.data()); print(expected);
ASSERT_EQ(ba.data(), expected);
}
TEST(Bytecode, Code)
{
BytecodePrototype bp;
auto& f = bp.functions.emplace_back(0, 0);
f.code.append_byte(0x68);
f.code.append_int(42);
auto& f2 = bp.functions.emplace_back(2, 1);
f2.code.append_byte(0x42);
std::vector<uint8_t> expected = {
// header
0x38, 0xc1, 0xb3, 0x74, // magic
0x01, 0x00, 0x00, 0x00, // version
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
// index
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // constant index
0x50, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, // variable index
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // raw constants
0x68, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, // raw code
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
// function definitions
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00,
0x02, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00,
// code
0x68, 0x54, 0x42,
};
ByteArray ba = Bytecode::generate(bp);
ASSERT_EQ(ba.data(), expected);
}
TEST(Bytecode, Parsing)
{
// write bytecode
BytecodePrototype bp;
bp.constants.emplace_back(42);
bp.constants.emplace_back(3.14f);
bp.constants.emplace_back("HELLO");
auto& f = bp.functions.emplace_back(0, 0);
f.code.append_byte(0x68);
f.code.append_int(42);
auto& ff = bp.functions.emplace_back(2, 1);
ff.code.append_byte(0x42);
ByteArray ba = Bytecode::generate(bp);
// print(ba.data());
// read bytecode
Bytecode bc(std::move(ba));
ASSERT_EQ(bc.n_constants(), 3);
ASSERT_EQ(bc.n_functions(), 2);
ASSERT_EQ(bc.get_constant_int(0), 42);
ASSERT_FLOAT_EQ(bc.get_constant_float(1), 3.14f);
ASSERT_EQ(bc.get_constant_string(2), "HELLO");
Bytecode::FunctionDef f1 = bc.get_function_def(0);
ASSERT_EQ(f1.n_params, 0);
ASSERT_EQ(f1.locals, 0);
Bytecode::FunctionDef f2 = bc.get_function_def(1);
ASSERT_EQ(f2.n_params, 2);
ASSERT_EQ(f2.locals, 1);
ASSERT_EQ(bc.get_code_byte(0, 0), 0x68);
ASSERT_EQ(bc.get_code_int(0, 1), std::make_pair(42, 1));
ASSERT_EQ(bc.get_code_byte(1, 0), 0x42);
}
int main(int argc, char** argv)
{
testing::InitGoogleTest(&argc, argv);