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gw-basic-cpp
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v1.0.1
include/gwbasic/ast.hpp
146 строк
7 KB
Дмитрий Григорьев
Advance GW-BASIC compatibility and tooling
16 май 2026, 20:04
16 май 2026, 20:04
8e3f79b
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#pragma once #include <memory> #include <optional> #include <string> #include <variant> #include <vector> namespace gwbasic { struct Expr; struct Statement; using ExprPtr = std::unique_ptr<Expr>; using StmtPtr = std::unique_ptr<Statement>; struct VariableRef { std::string name; std::vector<ExprPtr> indices; }; struct BinaryExpr { ExprPtr left; std::string op; ExprPtr right; }; struct UnaryExpr { std::string op; ExprPtr operand; }; struct NumberExpr { double value{}; }; struct StringExpr { std::string value; }; struct VariableExpr { VariableRef ref; }; struct FunctionCallExpr { std::string name; std::vector<ExprPtr> arguments; }; struct Expr { using Variant = std::variant<BinaryExpr, UnaryExpr, NumberExpr, StringExpr, VariableExpr, FunctionCallExpr>; Variant node; }; enum class PrintSeparator { None, Comma, Semicolon }; struct PrintItem { ExprPtr expression; PrintSeparator separator{PrintSeparator::None}; }; enum class FileMode { Input, Output, Append, Random }; struct OpenStmt { ExprPtr path; FileMode mode{FileMode::Input}; int file_number{}; std::optional<int> record_len; }; struct FieldBinding { int width{}; std::string variable; }; struct FieldStmt { int file_number{}; std::vector<FieldBinding> bindings; }; struct PutStmt { int file_number{}; std::optional<ExprPtr> record_number; }; struct GetStmt { int file_number{}; std::optional<ExprPtr> record_number; }; struct GraphicsGetStmt { ExprPtr x1; ExprPtr y1; ExprPtr x2; ExprPtr y2; VariableRef target; }; struct GraphicsPutStmt { ExprPtr x; ExprPtr y; VariableRef source; std::optional<std::string> mode; }; struct CloseStmt { std::optional<int> file_number; }; struct PrintFileStmt { int file_number{}; std::vector<PrintItem> items; bool trailing_newline{true}; }; struct WriteFileStmt { int file_number{}; std::vector<ExprPtr> items; bool trailing_newline{true}; }; struct InputFileStmt { int file_number{}; std::vector<VariableRef> targets; }; struct LineInputFileStmt { int file_number{}; VariableRef target; }; struct PrintStmt { std::vector<PrintItem> items; bool trailing_newline{true}; }; struct WriteStmt { std::vector<ExprPtr> items; bool trailing_newline{true}; }; struct PrintUsingStmt { std::string format; std::vector<ExprPtr> arguments; bool trailing_newline{true}; }; struct LetStmt { VariableRef target; ExprPtr value; }; struct InputStmt { std::vector<VariableRef> targets; std::string prompt; bool suppress_question{false}; }; struct LineInputStmt { VariableRef target; std::string prompt; }; struct IfStmt { ExprPtr condition; int target_line{}; }; struct IfThenStmt { ExprPtr condition; std::vector<StmtPtr> then_statements; std::vector<StmtPtr> else_statements; }; struct GotoStmt { int target_line{}; }; struct GosubStmt { int target_line{}; }; struct ReturnStmt {}; struct ForStmt { std::string variable; ExprPtr start; ExprPtr finish; ExprPtr step; }; struct NextStmt { std::optional<std::string> variable; }; struct DataStmt { std::vector<ExprPtr> items; }; struct ReadStmt { std::vector<VariableRef> targets; }; struct RestoreStmt { std::optional<int> line; }; struct DimDecl { std::string name; std::vector<ExprPtr> dimensions; }; struct DimStmt { std::vector<DimDecl> declarations; }; struct EraseStmt { std::vector<std::string> names; }; struct OptionBaseStmt { int base{}; }; struct WhileStmt { ExprPtr condition; }; struct WendStmt {}; struct OnGotoStmt { ExprPtr selector; std::vector<int> targets; }; struct OnGosubStmt { ExprPtr selector; std::vector<int> targets; }; struct OnErrorGotoStmt { int target_line{}; }; struct ResumeStmt { bool next{false}; std::optional<int> target_line; }; struct ErrorStmt { ExprPtr code; }; struct DefTypeRange { char start{}; char end{}; }; struct DefIntStmt { std::vector<DefTypeRange> ranges; }; struct DefStrStmt { std::vector<DefTypeRange> ranges; }; struct DefSngStmt { std::vector<DefTypeRange> ranges; }; struct DefDblStmt { std::vector<DefTypeRange> ranges; }; struct DefFnStmt { std::string name; std::vector<std::string> parameters; ExprPtr body; }; struct RandomizeStmt { std::optional<ExprPtr> seed; }; struct StopStmt {}; struct ContStmt {}; struct EndStmt {}; struct RemStmt { std::string comment; }; struct ListStmt {}; struct RunStmt {}; struct LoadStmt { ExprPtr path; }; struct SaveStmt { ExprPtr path; }; struct NewStmt {}; struct ClearStmt {}; struct FilesStmt { std::optional<ExprPtr> pattern; }; struct KillStmt { ExprPtr path; }; struct NameStmt { ExprPtr old_path; ExprPtr new_path; }; struct MkdirStmt { ExprPtr path; }; struct ChdirStmt { ExprPtr path; }; struct RmdirStmt { ExprPtr path; }; struct LsetStmt { VariableRef target; ExprPtr value; }; struct RsetStmt { VariableRef target; ExprPtr value; }; struct SwapStmt { VariableRef left; VariableRef right; }; struct ClsStmt {}; struct LocateStmt { std::optional<ExprPtr> row; std::optional<ExprPtr> column; std::optional<ExprPtr> cursor; std::optional<ExprPtr> start; std::optional<ExprPtr> stop; }; struct WidthStmt { ExprPtr columns; }; struct ColorStmt { std::optional<ExprPtr> foreground; std::optional<ExprPtr> background; std::optional<ExprPtr> border; }; struct BeepStmt {}; struct ScreenStmt { std::optional<ExprPtr> mode; std::optional<ExprPtr> color_switch; std::optional<ExprPtr> active_page; std::optional<ExprPtr> visual_page; }; struct KeyStmt { bool enabled{true}; }; struct PokeStmt { ExprPtr address; ExprPtr value; }; struct SoundStmt { ExprPtr frequency; ExprPtr duration; }; struct PlayStmt { ExprPtr sequence; }; struct PsetStmt { ExprPtr x; ExprPtr y; std::optional<ExprPtr> color; }; struct GraphicsLineStmt { ExprPtr x1; ExprPtr y1; ExprPtr x2; ExprPtr y2; std::optional<ExprPtr> color; bool box{false}; bool fill{false}; }; struct CircleStmt { ExprPtr x; ExprPtr y; ExprPtr radius; std::optional<ExprPtr> color; }; struct PaintStmt { ExprPtr x; ExprPtr y; std::optional<ExprPtr> color; std::optional<ExprPtr> border; }; struct DrawStmt { ExprPtr commands; }; struct ViewStmt { std::optional<ExprPtr> x1; std::optional<ExprPtr> y1; std::optional<ExprPtr> x2; std::optional<ExprPtr> y2; }; struct WindowStmt { bool screen_coordinates{false}; std::optional<ExprPtr> x1; std::optional<ExprPtr> y1; std::optional<ExprPtr> x2; std::optional<ExprPtr> y2; }; struct PaletteStmt { bool using_mode{false}; std::optional<VariableRef> using_source; std::optional<ExprPtr> attribute; std::optional<ExprPtr> color; }; struct Statement { using Variant = std::variant<PrintStmt, WriteStmt, PrintUsingStmt, OpenStmt, CloseStmt, PrintFileStmt, WriteFileStmt, InputFileStmt, LineInputFileStmt, FieldStmt, PutStmt, GetStmt, GraphicsGetStmt, GraphicsPutStmt, LetStmt, InputStmt, LineInputStmt, IfStmt, IfThenStmt, GotoStmt, GosubStmt, ReturnStmt, ForStmt, NextStmt, DataStmt, ReadStmt, RestoreStmt, DimStmt, EraseStmt, OptionBaseStmt, WhileStmt, WendStmt, OnGotoStmt, OnGosubStmt, OnErrorGotoStmt, ResumeStmt, ErrorStmt, DefFnStmt, DefIntStmt, DefStrStmt, DefSngStmt, DefDblStmt, StopStmt, ContStmt, EndStmt, RemStmt, ListStmt, RunStmt, LoadStmt, SaveStmt, NewStmt, ClearStmt, FilesStmt, KillStmt, NameStmt, MkdirStmt, ChdirStmt, RmdirStmt, LsetStmt, RsetStmt, SwapStmt, ClsStmt, LocateStmt, WidthStmt, ColorStmt, BeepStmt, ScreenStmt, KeyStmt, PokeStmt, SoundStmt, PlayStmt, RandomizeStmt, PsetStmt, GraphicsLineStmt, CircleStmt, PaintStmt, DrawStmt, ViewStmt, WindowStmt, PaletteStmt>; Variant node; }; struct ParsedLine { std::optional<int> line_number; std::vector<StmtPtr> statements; std::string original_text; }; } // namespace gwbasic