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buffer: add type check in bidirectionalIndexOf #32770

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Flarna wants to merge 3 commits into from
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buffer: add type check in bidirectionalIndexOf #32770

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b7f65ac
buffer: add type check in bidirectionalIndexOf
Flarna Apr 10, 2020
ef52a76
allow ArrayBufferView
Flarna Apr 10, 2020
0a7ff50
use validateBuffer
Flarna Apr 11, 2020
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use validateBuffer
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@Flarna
Flarna committed Apr 11, 2020
commit 0a7ff5051abd81834d45e7ebf29cd2b40bf35099
5 changes: 2 additions & 3 deletions lib/buffer.js
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Original file line number Diff line number Diff line change
Expand Up @@ -95,6 +95,7 @@ const {
hideStackFrames
} = require('internal/errors');
const {
validateBuffer,
validateInt32,
validateString
} = require('internal/validators');
Expand Down Expand Up @@ -899,9 +900,7 @@ Buffer.prototype.compare = function compare(target,
// - encoding - an optional encoding, relevant if val is a string
// - dir - true for indexOf, false for lastIndexOf
function bidirectionalIndexOf(buffer, val, byteOffset, encoding, dir) {
if (!isArrayBufferView(buffer)) {
throw new ERR_INVALID_ARG_TYPE('buffer', 'Buffer', buffer);
}
validateBuffer(buffer);

if (typeof byteOffset === 'string') {
encoding = byteOffset;
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3 changes: 2 additions & 1 deletion test/parallel/test-buffer-indexof.js
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Expand Up @@ -616,7 +616,8 @@ assert.strictEqual(reallyLong.lastIndexOf(pattern), 0);
}, {
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError',
message: 'The "buffer" argument must be an instance of Buffer. ' +
message: 'The "buffer" argument must be an instance of Buffer, ' +
'TypedArray, or DataView. ' +
'Received an instance of lastIndexOf'
});
}