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/lib/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/lib/leb128.js')
-rw-r--r-- | node_modules/@webassemblyjs/wasm-opt/lib/leb128.js | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/node_modules/@webassemblyjs/wasm-opt/lib/leb128.js b/node_modules/@webassemblyjs/wasm-opt/lib/leb128.js new file mode 100644 index 0000000..e4a0e85 --- /dev/null +++ b/node_modules/@webassemblyjs/wasm-opt/lib/leb128.js @@ -0,0 +1,56 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.shrinkPaddedLEB128 = shrinkPaddedLEB128; + +var _ast = require("@webassemblyjs/ast"); + +var _encoder = require("@webassemblyjs/wasm-gen/lib/encoder"); + +var _helperBuffer = require("@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; + (0, _ast.traverse)(ast, { + SectionMetadata: function SectionMetadata(path) { + if (path.node.section === section) { + encounteredSection = true; + return; + } + + if (encounteredSection === true) { + (0, _ast.shiftSection)(ast, path.node, deltaInSizeEncoding); + } + } + }); +} + +function shrinkPaddedLEB128(ast, uint8Buffer) { + (0, _ast.traverse)(ast, { + SectionMetadata: function SectionMetadata(_ref2) { + var node = _ref2.node; + + /** + * Section size + */ + { + var newu32Encoded = (0, _encoder.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 = (0, _helperBuffer.overrideBytesInBuffer)(uint8Buffer, start, end, newu32Encoded); + shiftFollowingSections(ast, node, -deltaInSizeEncoding); + } + } + } + }); + return uint8Buffer; +}
\ No newline at end of file |