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Rework shader AST (WIP)

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This commit is contained in:
Jérôme Leclercq
2021-03-10 11:18:13 +01:00
parent b320b5b44e
commit fed7370e77
73 changed files with 2721 additions and 4312 deletions
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33
include/Nazara/Shader/ShaderLangParser.hpp
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@@ -10,7 +10,7 @@
#include <Nazara/Prerequisites.hpp>
#include <Nazara/Shader/Config.hpp>
#include <Nazara/Shader/ShaderLangLexer.hpp>
#include <Nazara/Shader/ShaderAst.hpp>
#include <Nazara/Shader/ShaderNodes.hpp>
namespace Nz::ShaderLang
{
@@ -44,7 +44,7 @@ namespace Nz::ShaderLang
inline Parser();
~Parser() = default;
ShaderAst Parse(const std::vector<Token>& tokens);
ShaderAst::StatementPtr Parse(const std::vector<Token>& tokens);
private:
// Flow control
@@ -54,29 +54,30 @@ namespace Nz::ShaderLang
const Token& PeekNext();
// Statements
ShaderNodes::StatementPtr ParseFunctionBody();
void ParseFunctionDeclaration();
ShaderAst::FunctionParameter ParseFunctionParameter();
ShaderNodes::StatementPtr ParseReturnStatement();
ShaderNodes::StatementPtr ParseStatement();
ShaderNodes::StatementPtr ParseStatementList();
std::vector<ShaderAst::StatementPtr> ParseFunctionBody();
ShaderAst::StatementPtr ParseFunctionDeclaration();
ShaderAst::DeclareFunctionStatement::Parameter ParseFunctionParameter();
ShaderAst::StatementPtr ParseReturnStatement();
ShaderAst::StatementPtr ParseStatement();
std::vector<ShaderAst::StatementPtr> ParseStatementList();
ShaderAst::StatementPtr ParseVariableDeclaration();
// Expressions
ShaderNodes::ExpressionPtr ParseBinOpRhs(int exprPrecedence, ShaderNodes::ExpressionPtr lhs);
ShaderNodes::ExpressionPtr ParseExpression();
ShaderNodes::ExpressionPtr ParseIdentifier();
ShaderNodes::ExpressionPtr ParseIntegerExpression();
ShaderNodes::ExpressionPtr ParseParenthesisExpression();
ShaderNodes::ExpressionPtr ParsePrimaryExpression();
ShaderAst::ExpressionPtr ParseBinOpRhs(int exprPrecedence, ShaderAst::ExpressionPtr lhs);
ShaderAst::ExpressionPtr ParseExpression();
ShaderAst::ExpressionPtr ParseIdentifier();
ShaderAst::ExpressionPtr ParseIntegerExpression();
ShaderAst::ExpressionPtr ParseParenthesisExpression();
ShaderAst::ExpressionPtr ParsePrimaryExpression();
std::string ParseIdentifierAsName();
ShaderExpressionType ParseIdentifierAsType();
ShaderAst::ShaderExpressionType ParseIdentifierAsType();
static int GetTokenPrecedence(TokenType token);
struct Context
{
ShaderAst result;
std::unique_ptr<ShaderAst::MultiStatement> root;
std::size_t tokenCount;
std::size_t tokenIndex = 0;
const Token* tokens;