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Allow predicates in queries, to match on nodes' text

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This commit is contained in:
Max Brunsfeld 2019-09-15 22:06:51 -07:00
parent 307a1a6c11
commit 096126d039
8 changed files with 781 additions and 186 deletions
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24
lib/binding_web/binding.js
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@ -795,14 +795,34 @@ class Query {
const count = getValue(TRANSFER_BUFFER, 'i32');
const startAddress = getValue(TRANSFER_BUFFER + SIZE_OF_INT, 'i32');
const result = new Array(count);
unmarshalCaptures(this, node.tree, startAddress, result);
const result = [];
let address = startAddress;
for (let i = 0; i < count; i++) {
const pattern = getValue(address, 'i32');
address += SIZE_OF_INT;
const captureCount = getValue(address, 'i32');
address += SIZE_OF_INT;
const captureIndex = getValue(address, 'i32');
address += SIZE_OF_INT;
const captures = new Array(captureCount);
address = unmarshalCaptures(this, node.tree, address, captures);
if (capturesMatchConditions(this, node.tree, pattern, captures)) {
result.push(captures[captureIndex]);
}
}
C._free(startAddress);
return result;
}
}
function capturesMatchConditions(query, tree, pattern, captures) {
return true;
}
function unmarshalCaptures(query, tree, address, result) {
for (let i = 0, n = result.length; i < n; i++) {
const captureIndex = getValue(address, 'i32');