mirror of
https://github.com/RGBCube/serenity
synced 2025-05-14 14:44:58 +00:00
c96b6987c4
This parser will be used by the C++ langauge server to provide better auto-complete (& maybe also other things in the future). It is designed to be error tolerant, and keeps track of the position spans of the AST nodes, which should be useful later for incremental parsing.
382 lines
9.5 KiB
C++
382 lines
9.5 KiB
C++
/*
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* Copyright (c) 2021, Itamar S. <itamar8910@gmail.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "AST.h"
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#include "AK/LogStream.h"
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namespace Cpp {
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static void print_indent(int indent)
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{
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for (int i = 0; i < indent * 2; ++i)
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dbgprintf(" ");
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}
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void ASTNode::dump(size_t indent) const
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{
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print_indent(indent);
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dbgprintf("%s[%lu:%lu->%lu:%lu]\n", class_name(), start().line, start().column, end().line, end().column);
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}
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void TranslationUnit::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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for (const auto& child : m_children) {
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child.dump(indent + 1);
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}
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}
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void FunctionDeclaration::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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m_return_type->dump(indent + 1);
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if (!m_name.is_null()) {
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print_indent(indent + 1);
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dbgprintf("%s\n", m_name.to_string().characters());
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}
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print_indent(indent + 1);
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dbgprintf("(\n");
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for (const auto& arg : m_parameters) {
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arg.dump(indent + 1);
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}
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print_indent(indent + 1);
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dbgprintf(")\n");
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if (!m_definition.is_null()) {
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m_definition->dump(indent + 1);
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}
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}
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NonnullRefPtrVector<Declaration> FunctionDeclaration::declarations() const
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{
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NonnullRefPtrVector<Declaration> declarations;
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for (auto& arg : m_parameters) {
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declarations.append(arg);
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}
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return declarations;
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}
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void Type::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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print_indent(indent + 1);
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dbgprintf("%s\n", m_name.to_string().characters());
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}
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void Parameter::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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if (!m_name.is_null()) {
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print_indent(indent);
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dbgprintf("%s\n", m_name.to_string().characters());
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}
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m_type->dump(indent + 1);
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// print_indent(indent);
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// dbgprintf("%s [%s]\n", m_name.is_null() ? "" : m_name.to_string().characters(), m_type->name().to_string().characters());
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}
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void FunctionDefinition::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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print_indent(indent);
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dbgprintf("{\n");
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for (const auto& statement : m_statements) {
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statement.dump(indent + 1);
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}
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print_indent(indent);
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dbgprintf("}\n");
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}
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NonnullRefPtrVector<Declaration> FunctionDefinition::declarations() const
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{
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NonnullRefPtrVector<Declaration> declarations;
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for (auto& statement : m_statements) {
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declarations.append(statement.declarations());
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}
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return declarations;
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}
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void VariableDeclaration::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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m_type->dump(indent + 1);
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print_indent(indent + 1);
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dbgprintf("%s\n", m_name.to_string().characters());
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if (m_initial_value)
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m_initial_value->dump(indent + 1);
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}
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void Identifier::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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print_indent(indent);
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dbgprintf("%s\n", m_name.to_string().characters());
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}
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void NumericLiteral::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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print_indent(indent);
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dbgprintf("%s\n", m_value.to_string().characters());
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}
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void BinaryExpression::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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const char* op_string = nullptr;
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switch (m_op) {
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case BinaryOp::Addition:
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op_string = "+";
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break;
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case BinaryOp::Subtraction:
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op_string = "-";
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break;
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case BinaryOp::Multiplication:
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op_string = "*";
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break;
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case BinaryOp::Division:
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op_string = "/";
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break;
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case BinaryOp::Modulo:
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op_string = "%";
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break;
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case BinaryOp::GreaterThan:
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op_string = ">";
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break;
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case BinaryOp::GreaterThanEquals:
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op_string = ">=";
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break;
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case BinaryOp::LessThan:
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op_string = "<";
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break;
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case BinaryOp::LessThanEquals:
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op_string = "<=";
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break;
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case BinaryOp::BitwiseAnd:
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op_string = "&";
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break;
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case BinaryOp::BitwiseOr:
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op_string = "|";
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break;
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case BinaryOp::BitwiseXor:
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op_string = "^";
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break;
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case BinaryOp::LeftShift:
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op_string = "<<";
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break;
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case BinaryOp::RightShift:
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op_string = ">>";
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break;
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}
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m_lhs->dump(indent + 1);
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print_indent(indent + 1);
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ASSERT(op_string);
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dbgprintf("%s\n", op_string);
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m_rhs->dump(indent + 1);
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}
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void AssignmentExpression::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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const char* op_string = nullptr;
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switch (m_op) {
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case AssignmentOp::Assignment:
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op_string = "=";
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break;
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case AssignmentOp::AdditionAssignment:
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op_string = "+=";
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break;
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case AssignmentOp::SubtractionAssignment:
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op_string = "-=";
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break;
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}
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m_lhs->dump(indent + 1);
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print_indent(indent + 1);
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ASSERT(op_string);
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dbgprintf("%s\n", op_string);
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m_rhs->dump(indent + 1);
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}
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void FunctionCall::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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print_indent(indent);
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dbgprintf("%s\n", m_name.to_string().characters());
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for (const auto& arg : m_arguments) {
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arg.dump(indent + 1);
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}
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}
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void StringLiteral::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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print_indent(indent + 1);
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dbgprintf("%s\n", m_value.to_string().characters());
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}
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void ReturnStatement::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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m_value->dump(indent + 1);
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}
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void EnumDeclaration::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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print_indent(indent);
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dbgprintf("%s\n", m_name.to_string().characters());
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for (auto& entry : m_entries) {
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print_indent(indent + 1);
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dbgprintf("%s\n", entry.to_string().characters());
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}
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}
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void StructOrClassDeclaration::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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print_indent(indent);
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dbgprintf("%s\n", m_name.to_string().characters());
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for (auto& member : m_members) {
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member.dump(indent + 1);
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}
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}
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void MemberDeclaration::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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m_type->dump(indent + 1);
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print_indent(indent + 1);
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dbgprintf("%s\n", m_name.to_string().characters());
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if (m_initial_value) {
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m_initial_value->dump(indent + 2);
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}
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}
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void UnaryExpression::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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const char* op_string = nullptr;
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switch (m_op) {
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case UnaryOp::BitwiseNot:
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op_string = "~";
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break;
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case UnaryOp::Not:
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op_string = "!";
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break;
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case UnaryOp::Plus:
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op_string = "+";
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break;
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case UnaryOp::Minus:
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op_string = "-";
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break;
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case UnaryOp::PlusPlus:
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op_string = "++";
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break;
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default:
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op_string = "<invalid>";
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}
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ASSERT(op_string);
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print_indent(indent + 1);
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dbgprintf("%s\n", op_string);
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m_lhs->dump(indent + 1);
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}
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void BooleanLiteral::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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print_indent(indent + 1);
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dbgprintf("%s\n", m_value ? "true" : "false");
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}
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void Pointer::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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if (!m_pointee.is_null()) {
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m_pointee->dump(indent + 1);
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}
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}
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void MemberExpression::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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m_object->dump(indent + 1);
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m_property->dump(indent + 1);
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}
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void BlockStatement::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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for (auto& statement : m_statements) {
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statement.dump(indent + 1);
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}
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}
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void ForStatement::dump(size_t indent) const
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{
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ASTNode::dump(indent);
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if (m_init)
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m_init->dump(indent + 1);
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if (m_test)
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m_test->dump(indent + 1);
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if (m_update)
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m_update->dump(indent + 1);
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if (m_body)
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m_body->dump(indent + 1);
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}
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NonnullRefPtrVector<Declaration> Statement::declarations() const
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{
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if (is_declaration()) {
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NonnullRefPtrVector<Declaration> vec;
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const auto& decl = static_cast<const Declaration&>(*this);
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vec.empend(const_cast<Declaration&>(decl));
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return vec;
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}
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return {};
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}
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NonnullRefPtrVector<Declaration> ForStatement::declarations() const
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{
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auto declarations = m_init->declarations();
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declarations.append(m_body->declarations());
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return declarations;
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}
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NonnullRefPtrVector<Declaration> BlockStatement::declarations() const
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{
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NonnullRefPtrVector<Declaration> declarations;
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for (auto& statement : m_statements) {
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declarations.append(statement.declarations());
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}
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return declarations;
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}
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}
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