engine/formula/formula_ast library

Classes

AssignmentNode

Represents a variable assignment in a script: basis = sma(close, 20).

BinaryOpNode

Represents binary operators (+, -, *, /, %, ^, >, <, >=, <=, ==, !=, and, or).

ColorLiteralNode

Represents a color literal (e.g. #00E676, #FF5252).

FormulaNode

Base abstract class for all nodes in the Formula Abstract Syntax Tree (AST).

FunctionCallNode

Represents a function invocation (e.g. sma(close, 20), rsi(close, 14)).

HistoryOffsetNode

Represents historical bar indexing (e.g. close[1], high[2]).

NumberLiteralNode

Represents a numeric literal (e.g. 20, 3.14, -1.5).

PlotNode

Represents a plot(series, title="...", color=...) statement.

ScriptNode

Represents a complete multi-statement script.

SeriesVarNode

Represents a reference to a candle series variable (e.g. close, open, high, low, volume, hl2, hlc3, ohlc4).

StringLiteralNode

Represents a string literal (e.g. "Upper Band").

TernaryNode

Represents ternary conditional expressions: condition ? ifTrue : ifFalse.

UnaryOpNode

Represents unary prefix operators (e.g. -x, +x, not x, !x).