diff options
Diffstat (limited to 'node_modules/@webassemblyjs/helper-wasm-section/lib/resize.js')
| -rw-r--r-- | node_modules/@webassemblyjs/helper-wasm-section/lib/resize.js | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/node_modules/@webassemblyjs/helper-wasm-section/lib/resize.js b/node_modules/@webassemblyjs/helper-wasm-section/lib/resize.js deleted file mode 100644 index 524cacb9..00000000 --- a/node_modules/@webassemblyjs/helper-wasm-section/lib/resize.js +++ /dev/null @@ -1,90 +0,0 @@ -"use strict"; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.resizeSectionByteSize = resizeSectionByteSize; -exports.resizeSectionVecSize = resizeSectionVecSize; - -var _wasmGen = require("@webassemblyjs/wasm-gen"); - -var _ast = require("@webassemblyjs/ast"); - -var _helperBuffer = require("@webassemblyjs/helper-buffer"); - -function resizeSectionByteSize(ast, uint8Buffer, section, deltaBytes) { - var sectionMetadata = (0, _ast.getSectionMetadata)(ast, section); - - if (typeof sectionMetadata === "undefined") { - throw new Error("Section metadata not found"); - } - - if (typeof sectionMetadata.size.loc === "undefined") { - throw new Error("SectionMetadata " + section + " has no loc"); - } // keep old node location to be overriden - - - var start = sectionMetadata.size.loc.start.column; - var end = sectionMetadata.size.loc.end.column; - var newSectionSize = sectionMetadata.size.value + deltaBytes; - var newBytes = (0, _wasmGen.encodeU32)(newSectionSize); - /** - * update AST - */ - - sectionMetadata.size.value = newSectionSize; - var oldu32EncodedLen = end - start; - var newu32EncodedLen = newBytes.length; // the new u32 has a different encoded length - - if (newu32EncodedLen !== oldu32EncodedLen) { - var deltaInSizeEncoding = newu32EncodedLen - oldu32EncodedLen; - sectionMetadata.size.loc.end.column = start + newu32EncodedLen; - deltaBytes += deltaInSizeEncoding; // move the vec size pointer size the section size is now smaller - - sectionMetadata.vectorOfSize.loc.start.column += deltaInSizeEncoding; - sectionMetadata.vectorOfSize.loc.end.column += deltaInSizeEncoding; - } // 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, deltaBytes); - } - } - }); - return (0, _helperBuffer.overrideBytesInBuffer)(uint8Buffer, start, end, newBytes); -} - -function resizeSectionVecSize(ast, uint8Buffer, section, deltaElements) { - var sectionMetadata = (0, _ast.getSectionMetadata)(ast, section); - - if (typeof sectionMetadata === "undefined") { - throw new Error("Section metadata not found"); - } - - if (typeof sectionMetadata.vectorOfSize.loc === "undefined") { - throw new Error("SectionMetadata " + section + " has no loc"); - } // Section has no vector - - - if (sectionMetadata.vectorOfSize.value === -1) { - return uint8Buffer; - } // keep old node location to be overriden - - - var start = sectionMetadata.vectorOfSize.loc.start.column; - var end = sectionMetadata.vectorOfSize.loc.end.column; - var newValue = sectionMetadata.vectorOfSize.value + deltaElements; - var newBytes = (0, _wasmGen.encodeU32)(newValue); // Update AST - - sectionMetadata.vectorOfSize.value = newValue; - sectionMetadata.vectorOfSize.loc.end.column = start + newBytes.length; - return (0, _helperBuffer.overrideBytesInBuffer)(uint8Buffer, start, end, newBytes); -}
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