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LibJS: Add BigInt

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This commit is contained in:
Linus Groh 2020-06-06 01:14:10 +01:00 • committed by Andreas Kling
parent 40829b849a
commit 0ff9d7e189
32 changed files with 1910 additions and 636 deletions
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30
Libraries/LibJS/AST.cpp
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@ -29,10 +29,12 @@
#include <AK/HashMap.h>
#include <AK/ScopeGuard.h>
#include <AK/StringBuilder.h>
#include <LibCrypto/BigInt/SignedBigInteger.h>
#include <LibJS/AST.h>
#include <LibJS/Interpreter.h>
#include <LibJS/Runtime/Accessor.h>
#include <LibJS/Runtime/Array.h>
#include <LibJS/Runtime/BigInt.h>
#include <LibJS/Runtime/Error.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/MarkedValueList.h>
@ -635,6 +637,8 @@ Value UnaryExpression::execute(Interpreter& interpreter) const
return js_string(interpreter, "boolean");
case Value::Type::Symbol:
return js_string(interpreter, "symbol");
case Value::Type::BigInt:
return js_string(interpreter, "bigint");
default:
ASSERT_NOT_REACHED();
}
@ -834,6 +838,12 @@ void NumericLiteral::dump(int indent) const
printf("NumericLiteral %g\n", m_value);
}
void BigIntLiteral::dump(int indent) const
{
print_indent(indent);
printf("BigIntLiteral %s\n", m_value.characters());
}
void BooleanLiteral::dump(int indent) const
{
print_indent(indent);
@ -1108,23 +1118,28 @@ Value UpdateExpression::execute(Interpreter& interpreter) const
auto old_value = reference.get(interpreter);
if (interpreter.exception())
return {};
old_value = old_value.to_number(interpreter);
old_value = old_value.to_numeric(interpreter);
if (interpreter.exception())
return {};
int op_result = 0;
Value new_value;
switch (m_op) {
case UpdateOp::Increment:
op_result = 1;
if (old_value.is_number())
new_value = Value(old_value.as_double() + 1);
else
new_value = js_bigint(interpreter, old_value.as_bigint().big_integer().plus(Crypto::SignedBigInteger { 1 }));
break;
case UpdateOp::Decrement:
op_result = -1;
if (old_value.is_number())
new_value = Value(old_value.as_double() - 1);
else
new_value = js_bigint(interpreter, old_value.as_bigint().big_integer().minus(Crypto::SignedBigInteger { 1 }));
break;
default:
ASSERT_NOT_REACHED();
}
auto new_value = Value(old_value.as_double() + op_result);
reference.put(interpreter, new_value);
if (interpreter.exception())
return {};
@ -1420,6 +1435,11 @@ Value NumericLiteral::execute(Interpreter&) const
return Value(m_value);
}
Value BigIntLiteral::execute(Interpreter& interpreter) const
{
return js_bigint(interpreter, Crypto::SignedBigInteger::from_base10(m_value.substring(0, m_value.length() - 1)));
}
Value BooleanLiteral::execute(Interpreter&) const
{
return Value(m_value);