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ast.cpp
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358 lines (341 loc) · 8.94 KB
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#include "ast.h"
#include <iostream>
#include <iomanip>
#include <sstream>
using namespace febcode;
ExprPtr febcode::clone(const Expression* expr)
{
ExprPtr cpy;
if (auto literal = dynamic_cast<const LiteralExpr*>(expr)) {
cpy = std::make_unique<LiteralExpr>(literal->value);
}
else if (auto variable = dynamic_cast<const VariableExpr*>(expr)) {
cpy = std::make_unique<VariableExpr>(variable->name);
}
else if (auto unary = dynamic_cast<const UnaryExpr*>(expr)) {
cpy = std::make_unique<UnaryExpr>(unary->op, clone(unary->right.get()));
}
else if (auto binary = dynamic_cast<const BinaryExpr*>(expr)) {
cpy = std::make_unique<BinaryExpr>(clone(binary->left.get()), binary->op, clone(binary->right.get()));
}
else if (auto call = dynamic_cast<const CallExpr*>(expr))
{
std::vector<ExprPtr> copyArgs;
for (auto& arg : call->arguments)
{
copyArgs.emplace_back(clone(arg.get()));
}
cpy = std::make_unique<CallExpr>(call->name, std::move(copyArgs));
}
else if (auto call = dynamic_cast<const InitExpr*>(expr))
{
std::vector<ExprPtr> copyArgs;
for (auto& arg : call->elements)
{
copyArgs.emplace_back(clone(arg.get()));
}
cpy = std::make_unique<InitExpr>(std::move(copyArgs));
}
else if (auto constructor = dynamic_cast<const ConstructorExpr*>(expr))
{
std::vector<ExprPtr> copyArgs;
for (auto& arg : constructor->args)
{
copyArgs.emplace_back(clone(arg.get()));
}
cpy = std::make_unique<ConstructorExpr>(constructor->valType, std::move(copyArgs));
}
else if (auto assign = dynamic_cast<const AssignExpr*>(expr))
{
cpy = std::make_unique<AssignExpr>(clone(assign->target.get()), clone(assign->value.get()));
}
else if (auto member = dynamic_cast<const MemberExpr*>(expr))
{
cpy = std::make_unique<MemberExpr>(clone(member->object.get()), member->property);
}
else if (auto index = dynamic_cast<const IndexExpr*>(expr))
{
cpy = std::make_unique<IndexExpr>(clone(index->object.get()), clone(index->index.get()));
}
else
{
throw std::runtime_error("Unsupported expression type for copying");
}
if (cpy)
cpy->valType = expr->valType; // Copy the value type as well
return cpy;
}
bool febcode::isEqual(const ExprPtr& l, const ExprPtr& r)
{
return isEqual(l.get(), r.get());
}
bool febcode::isEqual(const Expression* l, const Expression* r)
{
if (!l && !r) return true;
if (!l || !r) return false;
if (auto litL = dynamic_cast<const LiteralExpr*>(l))
{
if (auto litR = dynamic_cast<const LiteralExpr*>(r))
{
return litL->value == litR->value;
}
}
else if (auto varL = dynamic_cast<const VariableExpr*>(l))
{
if (auto varR = dynamic_cast<const VariableExpr*>(r))
{
return varL->name == varR->name;
}
}
else if (auto binL = dynamic_cast<const BinaryExpr*>(l))
{
if (auto binR = dynamic_cast<const BinaryExpr*>(r))
{
return binL->op == binR->op &&
isEqual(binL->left, binR->left) &&
isEqual(binL->right, binR->right);
}
}
else if (auto unL = dynamic_cast<const UnaryExpr*>(l))
{
if (auto unR = dynamic_cast<const UnaryExpr*>(r))
{
return unL->op == unR->op &&
isEqual(unL->right, unR->right);
}
}
else if (auto memberL = dynamic_cast<const MemberExpr*>(l))
{
if (auto memberR = dynamic_cast<const MemberExpr*>(r))
{
return isEqual(memberL->object, memberR->object) &&
memberL->property == memberR->property;
}
}
else if (auto indexL = dynamic_cast<const IndexExpr*>(l))
{
if (auto indexR = dynamic_cast<const IndexExpr*>(r))
{
return isEqual(indexL->object, indexR->object) &&
isEqual(indexL->index, indexR->index);
}
}
else if (auto callL = dynamic_cast<const CallExpr*>(l))
{
if (auto callR = dynamic_cast<const CallExpr*>(r))
{
return (callL->name == callR->name) && isEqual(callL->arguments, callR->arguments);
}
}
else if (auto ctorL = dynamic_cast<const ConstructorExpr*>(l))
{
if (auto ctorR = dynamic_cast<const ConstructorExpr*>(r))
{
if (ctorL->valType != ctorR->valType) return false;
assert(ctorL->args.size() == ctorR->args.size());
if (ctorL->args.size() != ctorR->args.size()) return false;
for (int i = 0; i < ctorL->args.size(); ++i)
{
if (!isEqual(ctorL->args[i], ctorR->args[i]))
return false;
}
return true;
}
}
return false;
}
bool febcode::isEqual(const std::vector<ExprPtr>& l, const std::vector<ExprPtr>& r)
{
if (l.size() != r.size()) return false;
for (int i = 0; i < l.size(); ++i)
{
if (!isEqual(l[i], r[i])) return false;
}
return true;
}
std::ostream& operator << (std::ostream& o, const febcode::Value& v)
{
if (isVoid (v)) return o << "null";
else if (isInt (v)) return o << getInt(v);
else if (isDouble(v)) return o << getDouble(v);
else if (isBool (v)) return o << (getBool(v) ? "true" : "false");
else if (isArray(v))
{
const febcode::ArrayValue& arr = getArray(v);
o << "[";
for (size_t i = 0; i < arr.size(); ++i)
{
o << arr.elements[i];
if (i != arr.size() - 1) o << ", ";
}
return o << "]";
}
else if (isStruct(v))
{
const febcode::StructValue& s = getStruct(v);
o << "{";
for (size_t i = 0; i < s.fields.size(); ++i)
{
o << s.fields[i];
if (i != s.fields.size() - 1) o << ", ";
}
return o << "}";
}
else if (isVec2(v))
{
const febcode::vec2& vec = getVec2(v);
return o << "vec2(" << vec.x << ", " << vec.y << ")";
}
else if (isVec3(v))
{
const febcode::vec3& vec = getVec3(v);
return o << "vec3(" << vec.x << ", " << vec.y << ", " << vec.z << ")";
}
else if (isMat2(v))
{
const febcode::mat2& mat = getMat2(v);
return o << "mat2(" << mat.m[0][0] << ", " << mat.m[0][1] << ", " << mat.m[1][0] << ", " << mat.m[1][1] << ")";
}
else if (isMat3(v))
{
const febcode::mat3& mat = getMat3(v);
return o << "mat3(" << mat.m[0][0] << ", " << mat.m[0][1] << ", " << mat.m[0][2] << ", " << mat.m[1][0] << ", " << mat.m[1][1] << ", " << mat.m[1][2] << ", " << mat.m[2][0] << ", " << mat.m[2][1] << ", " << mat.m[2][2] << ")";
}
else
return o << "<unknown value>";
}
std::string to_nice_string(double d)
{
std::ostringstream ss;
ss << d;
return ss.str();
}
std::string ValueToString(const febcode::Value& v)
{
std::string s;
if (isVoid (v)) s = "null";
else if (isBool (v)) s = getBool(v) ? "true" : "false";
else if (isInt (v)) s = std::to_string(getInt (v));
else if (isDouble(v)) s = to_nice_string(getDouble(v));
else if (isVec2(v))
{
s = "vec2(";
vec2 q = getVec2(v);
if (isZero(q))
s += to_nice_string(0.0);
else
s += to_nice_string(q.x) + ", " + to_nice_string(q.y);
s += ")";
}
else if (isVec3(v))
{
s = "vec3(";
vec3 q = getVec3(v);
if (isZero(q))
{
s += to_nice_string(0.0);
}
else
{
s += to_nice_string(q.x) + ", " + to_nice_string(q.y) + ", " + to_nice_string(q.z);
}
s += ")";
}
else if (isMat2(v))
{
s = "mat2(";
const mat2& m = v.mat2Value;
if (isZero(m))
{
s += to_nice_string(0.0);
}
else if (isIdentity(m))
{
s += to_nice_string(1.0);
}
else
{
for (int i = 0; i < 2; ++i)
for (int j = 0; j < 2; ++j)
{
s += to_nice_string(m.m[i][j]);
if ((i != 1) || (j != 1)) s += ",";
}
}
s += ")";
}
else if (isMat3(v))
{
s = "mat3(";
const mat3& m = v.mat3Value;
if (isZero(m))
{
s += to_nice_string(0.0);
}
else if (isIdentity(m))
{
s += to_nice_string(1.0);
}
else
{
for (int i = 0; i < 3; ++i)
for (int j = 0; j < 3; ++j)
{
s += to_nice_string(m.m[i][j]);
if ((i != 2) || (j != 2)) s += ",";
}
}
s += ")";
}
else if (isArray (v)) { auto& p = getArrayPtr (v); s = "[array:" + std::to_string(p.use_count()) + "]"; }
else if (isStruct(v)) {
const febcode::StructValue& o = febcode::getStruct(v);
const std::string& name = o.type->name;
auto& p = getStructPtr(v);
s = "[" + name;
s = "{";
for (size_t i = 0; i < o.fields.size(); ++i)
{
s += ValueToString(o.fields[i]);
if (i != o.fields.size() - 1) s += ", ";
}
s += "}";
s += ":" + std::to_string(p.use_count()) + "]";
}
else s = "unknown";
return s;
}
std::string ValueTypeToString(const febcode::Value& v)
{
if (isVoid (v)) return "void";
else if (isBool (v)) return "bool";
else if (isInt (v)) return "int";
else if (isDouble(v)) return "double";
else if (isArray (v)) return "array";
else if (isStruct(v)) return "struct";
else if (isVec2 (v)) return "vec2";
else if (isVec3 (v)) return "vec3";
else if (isRef (v)) return "ref";
else return "<unknown type>";
}
std::string opToString(BinaryOp op)
{
switch (op)
{
case BinaryOp::Plus: return "+";
case BinaryOp::Minus: return "-";
case BinaryOp::Multiply: return "*";
case BinaryOp::Divide: return "/";
case BinaryOp::Exponent: return "**";
case BinaryOp::Greater: return ">";
case BinaryOp::GreaterEqual: return ">=";
case BinaryOp::Less: return "<";
case BinaryOp::LessEqual: return "<=";
case BinaryOp::EqualEqual: return "==";
case BinaryOp::NotEqual: return "!=";
case BinaryOp::AndAnd: return "&&";
case BinaryOp::OrOr: return "||";
default:
return "unknown_op";
}
}