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JSSpecCompiler: Parse arbitrarily large rational numbers in xspec mode

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Dan Klishch 2024-01-20 21:18:05 -05:00 • committed by Andrew Kaster
parent 2a2e31f2ed
commit 86d54a8684
9 changed files with 64 additions and 8 deletions
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9
Meta/Lagom/Tools/CodeGenerators/JSSpecCompiler/AST/AST.h
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@ -10,6 +10,7 @@
#include <AK/RefCounted.h>
#include <AK/RefPtr.h>
#include <AK/Vector.h>
#include <LibCrypto/BigFraction/BigFraction.h>
#include "Forward.h"
@ -208,16 +209,16 @@ protected:
class MathematicalConstant : public Expression {
public:
MathematicalConstant(i64 number)
MathematicalConstant(Crypto::BigFraction number)
: m_number(number)
{
}
// TODO: This should be able to hold arbitrary number
i64 m_number;
protected:
void dump_tree(StringBuilder& builder) override;
private:
Crypto::BigFraction m_number;
};
class StringLiteral : public Expression {

7
Meta/Lagom/Tools/CodeGenerators/JSSpecCompiler/AST/ASTPrinting.cpp
View file

@ -62,7 +62,12 @@ void ControlFlowBranch::dump_tree(StringBuilder& builder)
void MathematicalConstant::dump_tree(StringBuilder& builder)
{
dump_node(builder, "MathematicalConstant {}", m_number);
String representation;
if (Crypto::UnsignedBigInteger { 1000 }.divided_by(m_number.denominator()).remainder == 0)
representation = MUST(String::from_byte_string(m_number.to_byte_string(3)));
else
representation = MUST(String::formatted("{}/{}", MUST(m_number.numerator().to_base(10)), MUST(m_number.denominator().to_base(10))));
dump_node(builder, "MathematicalConstant {}", representation);
}
void StringLiteral::dump_tree(StringBuilder& builder)