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Tweak query interface

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* Rename TSQueryContext -> TSQueryCursor
* Remove the permanent association between the cursor and its query. The 
cursor can now be used again for a different query.
This commit is contained in:
Max Brunsfeld 2019-09-11 14:44:49 -07:00
parent c8c75782e3
commit c71de5bd81
9 changed files with 142 additions and 147 deletions
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9
lib/binding_web/binding.js
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@ -677,7 +677,6 @@ class Language {
TRANSFER_BUFFER + SIZE_OF_INT
);
if (address) {
const contextAddress = C._ts_query_context_new(address);
const captureCount = C._ts_query_capture_count(address);
const captureNames = new Array(captureCount);
for (let i = 0; i < captureCount; i++) {
@ -689,7 +688,7 @@ class Language {
const nameLength = getValue(TRANSFER_BUFFER, 'i32');
captureNames[i] = UTF8ToString(nameAddress, nameLength);
}
return new Query(INTERNAL, address, contextAddress, captureNames);
return new Query(INTERNAL, address, captureNames);
} else {
const errorId = getValue(TRANSFER_BUFFER + SIZE_OF_INT, 'i32');
const utf8ErrorOffset = getValue(TRANSFER_BUFFER, 'i32');
@ -743,22 +742,20 @@ class Language {
}
class Query {
constructor(internal, address, contextAddress, captureNames) {
constructor(internal, address, captureNames) {
assertInternal(internal);
this[0] = address;
this[1] = contextAddress;
this.captureNames = captureNames;
}
delete() {
C._ts_query_delete(this[0]);
C._ts_query_context_delete(this[0]);
}
exec(queryNode) {
marshalNode(queryNode);
C._ts_query_exec_wasm(this[0], this[1], queryNode.tree[0]);
C._ts_query_exec_wasm(this[0], queryNode.tree[0]);
const matchCount = getValue(TRANSFER_BUFFER, 'i32');
const nodesAddress = getValue(TRANSFER_BUFFER + SIZE_OF_INT, 'i32');