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Interface: QueryContext ​

Context of a query evaluation.

Properties ​

argument ​

ts
readonly argument: JSONValue;

Query argument.

filterExpressionInstrumentationCallback? ​

ts
readonly optional filterExpressionInstrumentationCallback?: (filterExpression, output) => void;

Callback called every time a FilterExpression is evaluated.

Parameters ​

filterExpression ​

FilterExpression

Filter expression.

output ​

FilterValue

Output value.

Returns ​

void

options ​

ts
readonly options: QueryOptions;

Query options.

queryInstrumentationCallback? ​

ts
readonly optional queryInstrumentationCallback?: (query, input, outputArray, outputStartIndex, outputLength) => void;

Callback called every time a SubQuery is evaluated.

Parameters ​

query ​

SubQuery

Query.

input ​

Node

Input node.

outputArray ​

IndexOnlyArray<Node>

Output nodes array. It can also contain unrelated nodes, refer to outputStartIndex and outputLength.

outputStartIndex ​

number

Start index of the relevant part in outputArray.

outputLength ​

number

Length of the relevant part in outputArray.

Returns ​

void

reportDiagnosticsCallback? ​

ts
readonly optional reportDiagnosticsCallback?: (diagnostics) => void;

Callback called every time a runtime diagnostics is reported.

Parameters ​

diagnostics ​

Diagnostics

Diagnostics.

Returns ​

void

segmentInstrumentationCallback? ​

ts
readonly optional segmentInstrumentationCallback?: (segment, input, outputArray, outputStartIndex, outputLength) => void;

Callback called every time a Segment is evaluated.

Parameters ​

segment ​

Segment

Segment.

input ​

Node

Input node.

outputArray ​

IndexOnlyArray<Node>

Output nodes array. It can also contain unrelated nodes, refer to outputStartIndex and outputLength.

outputStartIndex ​

number

Start index of the relevant part in outputArray.

outputLength ​

number

Length of the relevant part in outputArray.

Returns ​

void

selectorInstrumentationCallback? ​

ts
readonly optional selectorInstrumentationCallback?: (selector, input, outputArray, outputStartIndex, outputLength) => void;

Callback called every time a Selector is evaluated.

Parameters ​

selector ​

Selector

Selector.

input ​

Node

Input node.

outputArray ​

IndexOnlyArray<Node>

Output nodes array. It can also contain unrelated nodes, refer to outputStartIndex and outputLength.

outputStartIndex ​

number

Start index of the relevant part in outputArray.

outputLength ​

number

Length of the relevant part in outputArray.

Returns ​

void