/* @internal */

namespace ts.formatting {

export interface Rule {

// Used for debugging to identify each rule based on the property name it's assigned to.

readonly debugName: string;

readonly context: readonly ContextPredicate[];

readonly action: RuleAction;

readonly flags: RuleFlags;

}

export type ContextPredicate = (context: FormattingContext) => boolean;

export const anyContext: readonly ContextPredicate[] = emptyArray;

export const enum RuleAction {

StopProcessingSpaceActions = 1 << 0,

StopProcessingTokenActions = 1 << 1,

InsertSpace = 1 << 2,

InsertNewLine = 1 << 3,

DeleteSpace = 1 << 4,

DeleteToken = 1 << 5,

InsertTrailingSemicolon = 1 << 6,

StopAction = StopProcessingSpaceActions | StopProcessingTokenActions,

ModifySpaceAction = InsertSpace | InsertNewLine | DeleteSpace,

ModifyTokenAction = DeleteToken | InsertTrailingSemicolon,

}

export const enum RuleFlags {

None,

CanDeleteNewLines,

}

export interface TokenRange {

readonly tokens: readonly SyntaxKind[];

readonly isSpecific: boolean;

}

}