beenull/ladybird
1
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2024-11-22 15:40:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 6

LibJS: Implement bytecode generation for BigInts

Browse source
This commit is contained in:
Gunnar Beutner 2021-06-08 07:59:25 +02:00 committed by Linus Groh
parent 0975e08285
commit 50ece3dd1b
Notes: sideshowbarker 2024-07-18 12:38:29 +09:00 
Author: https://github.com/gunnarbeutner
Commit: https://github.com/SerenityOS/serenity/commit/50ece3dd1bd
Pull-request: https://github.com/SerenityOS/serenity/pull/7909
Reviewed-by: https://github.com/linusg
5 changed files with 38 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
Userland/Libraries/LibJS/AST.h
View file

@ -660,6 +660,7 @@ public:
virtual Value execute(Interpreter&, GlobalObject&) const override;
virtual void dump(int indent) const override;
virtual Optional<Bytecode::Register> generate_bytecode(Bytecode::Generator&) const override;
private:
String m_value;

7
Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp
View file

@ -208,6 +208,13 @@ Optional<Bytecode::Register> NullLiteral::generate_bytecode(Bytecode::Generator&
return dst;
}
Optional<Bytecode::Register> BigIntLiteral::generate_bytecode(Bytecode::Generator& generator) const
{
auto dst = generator.allocate_register();
generator.emit<Bytecode::Op::NewBigInt>(dst, Crypto::SignedBigInteger::from_base10(m_value.substring(0, m_value.length() - 1)));
return dst;
}
Optional<Bytecode::Register> StringLiteral::generate_bytecode(Bytecode::Generator& generator) const
{
auto dst = generator.allocate_register();

1
Userland/Libraries/LibJS/Bytecode/Instruction.h
View file

@ -26,6 +26,7 @@
O(AbstractEquals) \
O(TypedInequals) \
O(TypedEquals) \
O(NewBigInt) \
O(NewString) \
O(NewObject) \
O(GetVariable) \

11
Userland/Libraries/LibJS/Bytecode/Op.cpp
View file

@ -8,6 +8,7 @@
#include <LibJS/AST.h>
#include <LibJS/Bytecode/Interpreter.h>
#include <LibJS/Bytecode/Op.h>
#include <LibJS/Runtime/BigInt.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/ScriptFunction.h>
#include <LibJS/Runtime/Value.h>
@ -112,6 +113,11 @@ static Value typeof_(GlobalObject& global_object, Value value)
JS_ENUMERATE_COMMON_UNARY_OPS(JS_DEFINE_COMMON_UNARY_OP)
void NewBigInt::execute(Bytecode::Interpreter& interpreter) const
{
interpreter.reg(m_dst) = js_bigint(interpreter.vm().heap(), m_bigint);
}
void NewString::execute(Bytecode::Interpreter& interpreter) const
{
interpreter.reg(m_dst) = js_string(interpreter.vm(), m_string);
@ -231,6 +237,11 @@ String LoadRegister::to_string() const
return String::formatted("LoadRegister dst:{}, src:{}", m_dst, m_src);
}
String NewBigInt::to_string() const
{
return String::formatted("NewBigInt dst:{}, bigint:\"{}\"", m_dst, m_bigint.to_base10());
}
String NewString::to_string() const
{
return String::formatted("NewString dst:{}, string:\"{}\"", m_dst, m_string);

18
Userland/Libraries/LibJS/Bytecode/Op.h
View file

@ -8,6 +8,7 @@
#pragma once
#include <AK/FlyString.h>
#include <LibCrypto/BigInt/SignedBigInteger.h>
#include <LibJS/Bytecode/Instruction.h>
#include <LibJS/Bytecode/Label.h>
#include <LibJS/Bytecode/Register.h>
@ -157,6 +158,23 @@ private:
Register m_dst;
};
class NewBigInt final : public Instruction {
public:
explicit NewBigInt(Register dst, Crypto::SignedBigInteger bigint)
: Instruction(Type::NewBigInt)
, m_dst(dst)
, m_bigint(move(bigint))
{
}
void execute(Bytecode::Interpreter&) const;
String to_string() const;
private:
Register m_dst;
Crypto::SignedBigInteger m_bigint;
};
class SetVariable final : public Instruction {
public:
SetVariable(FlyString identifier, Register src)