tml::StateStack Class Reference

Abstract interface representing the parsing state at the end of a line. More...

#include </home/runner/work/TextMateLib/TextMateLib/packages/tml-cpp/src/types.h>

Inherited by tml::StateStackImpl.

Public Member Functions
virtual int	getDepth () const =0
	Get the nesting depth (number of active rules)
virtual StateStack *	clone ()=0
	Create an independent copy of this state.
virtual bool	equals (StateStack *other)=0
	Check if this state equals another (for incremental tokenization)

Detailed Description

Abstract interface representing the parsing state at the end of a line.

StateStack is immutable and encodes the hierarchy of active grammar rules after parsing a line. Two StateStacks are equal() if and only if parsing can resume from the exact same position (all scopes and nesting are identical). This enables incremental tokenization optimization: if prevState equals previousLine's ruleStack, the line's tokens may not have changed (early stopping).

Definition at line 55 of file types.h.

Member Function Documentation

clone()

virtual StateStack * tml::StateStack::clone ( )

pure virtual

Create an independent copy of this state.

Returns

Dynamically allocated copy (caller must delete)

equals()

virtual bool tml::StateStack::equals ( StateStack *  other )

pure virtual

Check if this state equals another (for incremental tokenization)

Parameters

other

StateStack to compare with

Returns

True if states represent identical parsing positions

Note

Critical for incremental tokenization performance

getDepth()

virtual int tml::StateStack::getDepth ( ) const

pure virtual

Get the nesting depth (number of active rules)

Returns

Stack depth (0 for initial state)

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The documentation for this class was generated from the following file:

• /home/runner/work/TextMateLib/TextMateLib/packages/tml-cpp/src/types.h