ladybird/Userland/Libraries/LibCpp/AST.cpp
2021-02-21 21:32:16 +01:00

408 lines
9.7 KiB
C++

/*
* Copyright (c) 2021, Itamar S. <itamar8910@gmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "AST.h"
#include "AK/LogStream.h"
namespace Cpp {
static void print_indent(int indent)
{
for (int i = 0; i < indent * 2; ++i)
out(" ");
}
void ASTNode::dump(size_t indent) const
{
print_indent(indent);
outln("{}[{}:{}->{}:{}]", class_name(), start().line, start().column, end().line, end().column);
}
void TranslationUnit::dump(size_t indent) const
{
ASTNode::dump(indent);
for (const auto& child : m_children) {
child.dump(indent + 1);
}
}
void FunctionDeclaration::dump(size_t indent) const
{
ASTNode::dump(indent);
m_return_type->dump(indent + 1);
if (!m_name.is_null()) {
print_indent(indent + 1);
outln("{}", m_name);
}
print_indent(indent + 1);
outln("(");
for (const auto& arg : m_parameters) {
arg.dump(indent + 1);
}
print_indent(indent + 1);
outln(")");
if (!m_definition.is_null()) {
m_definition->dump(indent + 1);
}
}
NonnullRefPtrVector<Declaration> FunctionDeclaration::declarations() const
{
NonnullRefPtrVector<Declaration> declarations;
for (auto& arg : m_parameters) {
declarations.append(arg);
}
return declarations;
}
void Type::dump(size_t indent) const
{
ASTNode::dump(indent);
print_indent(indent + 1);
outln("{}", m_name);
}
void Parameter::dump(size_t indent) const
{
ASTNode::dump(indent);
if (!m_name.is_null()) {
print_indent(indent);
outln("{}", m_name);
}
m_type->dump(indent + 1);
}
void FunctionDefinition::dump(size_t indent) const
{
ASTNode::dump(indent);
print_indent(indent);
outln("{{");
for (const auto& statement : m_statements) {
statement.dump(indent + 1);
}
print_indent(indent);
outln("}}");
}
NonnullRefPtrVector<Declaration> FunctionDefinition::declarations() const
{
NonnullRefPtrVector<Declaration> declarations;
for (auto& statement : m_statements) {
declarations.append(statement.declarations());
}
return declarations;
}
void VariableDeclaration::dump(size_t indent) const
{
ASTNode::dump(indent);
m_type->dump(indent + 1);
print_indent(indent + 1);
outln("{}", m_name);
if (m_initial_value)
m_initial_value->dump(indent + 1);
}
void Identifier::dump(size_t indent) const
{
ASTNode::dump(indent);
print_indent(indent);
outln("{}", m_name);
}
void NumericLiteral::dump(size_t indent) const
{
ASTNode::dump(indent);
print_indent(indent);
outln("{}", m_value);
}
void BinaryExpression::dump(size_t indent) const
{
ASTNode::dump(indent);
const char* op_string = nullptr;
switch (m_op) {
case BinaryOp::Addition:
op_string = "+";
break;
case BinaryOp::Subtraction:
op_string = "-";
break;
case BinaryOp::Multiplication:
op_string = "*";
break;
case BinaryOp::Division:
op_string = "/";
break;
case BinaryOp::Modulo:
op_string = "%";
break;
case BinaryOp::GreaterThan:
op_string = ">";
break;
case BinaryOp::GreaterThanEquals:
op_string = ">=";
break;
case BinaryOp::LessThan:
op_string = "<";
break;
case BinaryOp::LessThanEquals:
op_string = "<=";
break;
case BinaryOp::BitwiseAnd:
op_string = "&";
break;
case BinaryOp::BitwiseOr:
op_string = "|";
break;
case BinaryOp::BitwiseXor:
op_string = "^";
break;
case BinaryOp::LeftShift:
op_string = "<<";
break;
case BinaryOp::RightShift:
op_string = ">>";
break;
}
m_lhs->dump(indent + 1);
print_indent(indent + 1);
ASSERT(op_string);
outln("{}", op_string);
m_rhs->dump(indent + 1);
}
void AssignmentExpression::dump(size_t indent) const
{
ASTNode::dump(indent);
const char* op_string = nullptr;
switch (m_op) {
case AssignmentOp::Assignment:
op_string = "=";
break;
case AssignmentOp::AdditionAssignment:
op_string = "+=";
break;
case AssignmentOp::SubtractionAssignment:
op_string = "-=";
break;
}
m_lhs->dump(indent + 1);
print_indent(indent + 1);
ASSERT(op_string);
outln("{}");
m_rhs->dump(indent + 1);
}
void FunctionCall::dump(size_t indent) const
{
ASTNode::dump(indent);
print_indent(indent);
outln("{}", m_name);
for (const auto& arg : m_arguments) {
arg.dump(indent + 1);
}
}
void StringLiteral::dump(size_t indent) const
{
ASTNode::dump(indent);
print_indent(indent + 1);
outln("{}", m_value);
}
void ReturnStatement::dump(size_t indent) const
{
ASTNode::dump(indent);
m_value->dump(indent + 1);
}
void EnumDeclaration::dump(size_t indent) const
{
ASTNode::dump(indent);
print_indent(indent);
outln("{}", m_name);
for (auto& entry : m_entries) {
print_indent(indent + 1);
outln("{}", entry);
}
}
void StructOrClassDeclaration::dump(size_t indent) const
{
ASTNode::dump(indent);
print_indent(indent);
outln("{}", m_name);
for (auto& member : m_members) {
member.dump(indent + 1);
}
}
void MemberDeclaration::dump(size_t indent) const
{
ASTNode::dump(indent);
m_type->dump(indent + 1);
print_indent(indent + 1);
outln("{}", m_name);
if (m_initial_value) {
m_initial_value->dump(indent + 2);
}
}
void UnaryExpression::dump(size_t indent) const
{
ASTNode::dump(indent);
const char* op_string = nullptr;
switch (m_op) {
case UnaryOp::BitwiseNot:
op_string = "~";
break;
case UnaryOp::Not:
op_string = "!";
break;
case UnaryOp::Plus:
op_string = "+";
break;
case UnaryOp::Minus:
op_string = "-";
break;
case UnaryOp::PlusPlus:
op_string = "++";
break;
default:
op_string = "<invalid>";
}
ASSERT(op_string);
print_indent(indent + 1);
outln("{}", op_string);
m_lhs->dump(indent + 1);
}
void BooleanLiteral::dump(size_t indent) const
{
ASTNode::dump(indent);
print_indent(indent + 1);
outln("{}", m_value ? "true" : "false");
}
void Pointer::dump(size_t indent) const
{
ASTNode::dump(indent);
if (!m_pointee.is_null()) {
m_pointee->dump(indent + 1);
}
}
void MemberExpression::dump(size_t indent) const
{
ASTNode::dump(indent);
m_object->dump(indent + 1);
m_property->dump(indent + 1);
}
void BlockStatement::dump(size_t indent) const
{
ASTNode::dump(indent);
for (auto& statement : m_statements) {
statement.dump(indent + 1);
}
}
void ForStatement::dump(size_t indent) const
{
ASTNode::dump(indent);
if (m_init)
m_init->dump(indent + 1);
if (m_test)
m_test->dump(indent + 1);
if (m_update)
m_update->dump(indent + 1);
if (m_body)
m_body->dump(indent + 1);
}
NonnullRefPtrVector<Declaration> Statement::declarations() const
{
if (is_declaration()) {
NonnullRefPtrVector<Declaration> vec;
const auto& decl = static_cast<const Declaration&>(*this);
vec.empend(const_cast<Declaration&>(decl));
return vec;
}
return {};
}
NonnullRefPtrVector<Declaration> ForStatement::declarations() const
{
auto declarations = m_init->declarations();
declarations.append(m_body->declarations());
return declarations;
}
NonnullRefPtrVector<Declaration> BlockStatement::declarations() const
{
NonnullRefPtrVector<Declaration> declarations;
for (auto& statement : m_statements) {
declarations.append(statement.declarations());
}
return declarations;
}
void IfStatement::dump(size_t indent) const
{
ASTNode::dump(indent);
if (m_predicate) {
print_indent(indent + 1);
outln("Predicate:");
m_predicate->dump(indent + 1);
}
if (m_then) {
print_indent(indent + 1);
outln("Then:");
m_then->dump(indent + 1);
}
if (m_else) {
print_indent(indent + 1);
outln("Else:");
m_else->dump(indent + 1);
}
}
NonnullRefPtrVector<Declaration> IfStatement::declarations() const
{
NonnullRefPtrVector<Declaration> declarations;
declarations.append(m_predicate->declarations());
declarations.append(m_then->declarations());
declarations.append(m_else->declarations());
return declarations;
}
}