diff options
author | 2020-11-16 00:10:28 +0100 | |
---|---|---|
committer | 2020-11-16 00:10:28 +0100 | |
commit | e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch) | |
tree | 55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/@webassemblyjs/wasm-opt/esm/leb128.js | |
download | website_creator-e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d.tar.gz website_creator-e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d.tar.bz2 website_creator-e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d.zip |
api, login, auth
Diffstat (limited to 'node_modules/@webassemblyjs/wasm-opt/esm/leb128.js')
-rw-r--r-- | node_modules/@webassemblyjs/wasm-opt/esm/leb128.js | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/node_modules/@webassemblyjs/wasm-opt/esm/leb128.js b/node_modules/@webassemblyjs/wasm-opt/esm/leb128.js new file mode 100644 index 0000000..3150c9e --- /dev/null +++ b/node_modules/@webassemblyjs/wasm-opt/esm/leb128.js @@ -0,0 +1,47 @@ +import { traverse, shiftSection } from "@webassemblyjs/ast"; +import { encodeU32 } from "@webassemblyjs/wasm-gen/lib/encoder"; +import { overrideBytesInBuffer } from "@webassemblyjs/helper-buffer"; + +function shiftFollowingSections(ast, _ref, deltaInSizeEncoding) { + var section = _ref.section; + // Once we hit our section every that is after needs to be shifted by the delta + var encounteredSection = false; + traverse(ast, { + SectionMetadata: function SectionMetadata(path) { + if (path.node.section === section) { + encounteredSection = true; + return; + } + + if (encounteredSection === true) { + shiftSection(ast, path.node, deltaInSizeEncoding); + } + } + }); +} + +export function shrinkPaddedLEB128(ast, uint8Buffer) { + traverse(ast, { + SectionMetadata: function SectionMetadata(_ref2) { + var node = _ref2.node; + + /** + * Section size + */ + { + var newu32Encoded = encodeU32(node.size.value); + var newu32EncodedLen = newu32Encoded.length; + var start = node.size.loc.start.column; + var end = node.size.loc.end.column; + var oldu32EncodedLen = end - start; + + if (newu32EncodedLen !== oldu32EncodedLen) { + var deltaInSizeEncoding = oldu32EncodedLen - newu32EncodedLen; + uint8Buffer = overrideBytesInBuffer(uint8Buffer, start, end, newu32Encoded); + shiftFollowingSections(ast, node, -deltaInSizeEncoding); + } + } + } + }); + return uint8Buffer; +}
\ No newline at end of file |