0.2.0 - Mid migration

This commit is contained in:
Daniel Mason 2022-04-25 14:47:15 +12:00
parent 139e6a915e
commit 7e38fdbd7d
42393 changed files with 5358157 additions and 62 deletions

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MIT License
Copyright (c) 2018 Sven Sauleau <sven@sauleau.com>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
import { encodeNode } from "@webassemblyjs/wasm-gen";
import { overrideBytesInBuffer } from "@webassemblyjs/helper-buffer";
import constants from "@webassemblyjs/helper-wasm-bytecode";
import * as t from "@webassemblyjs/ast";
function findLastSection(ast, forSection) {
var targetSectionId = constants.sections[forSection]; // $FlowIgnore: metadata can not be empty
var moduleSections = ast.body[0].metadata.sections;
var lastSection;
var lastId = 0;
for (var i = 0, len = moduleSections.length; i < len; i++) {
var section = moduleSections[i]; // Ignore custom section since they can actually occur everywhere
if (section.section === "custom") {
continue;
}
var sectionId = constants.sections[section.section];
if (targetSectionId > lastId && targetSectionId < sectionId) {
return lastSection;
}
lastId = sectionId;
lastSection = section;
}
return lastSection;
}
export function createEmptySection(ast, uint8Buffer, section) {
// previous section after which we are going to insert our section
var lastSection = findLastSection(ast, section);
var start, end;
/**
* It's the first section
*/
if (lastSection == null || lastSection.section === "custom") {
start = 8
/* wasm header size */
;
end = start;
} else {
start = lastSection.startOffset + lastSection.size.value + 1;
end = start;
} // section id
start += 1;
var sizeStartLoc = {
line: -1,
column: start
};
var sizeEndLoc = {
line: -1,
column: start + 1
}; // 1 byte for the empty vector
var size = t.withLoc(t.numberLiteralFromRaw(1), sizeEndLoc, sizeStartLoc);
var vectorOfSizeStartLoc = {
line: -1,
column: sizeEndLoc.column
};
var vectorOfSizeEndLoc = {
line: -1,
column: sizeEndLoc.column + 1
};
var vectorOfSize = t.withLoc(t.numberLiteralFromRaw(0), vectorOfSizeEndLoc, vectorOfSizeStartLoc);
var sectionMetadata = t.sectionMetadata(section, start, size, vectorOfSize);
var sectionBytes = encodeNode(sectionMetadata);
uint8Buffer = overrideBytesInBuffer(uint8Buffer, start - 1, end, sectionBytes); // Add section into the AST for later lookups
if (_typeof(ast.body[0].metadata) === "object") {
// $FlowIgnore: metadata can not be empty
ast.body[0].metadata.sections.push(sectionMetadata);
t.sortSectionMetadata(ast.body[0]);
}
/**
* Update AST
*/
// Once we hit our section every that is after needs to be shifted by the delta
var deltaBytes = +sectionBytes.length;
var encounteredSection = false;
t.traverse(ast, {
SectionMetadata: function SectionMetadata(path) {
if (path.node.section === section) {
encounteredSection = true;
return;
}
if (encounteredSection === true) {
t.shiftSection(ast, path.node, deltaBytes);
}
}
});
return {
uint8Buffer: uint8Buffer,
sectionMetadata: sectionMetadata
};
}

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export { resizeSectionByteSize, resizeSectionVecSize } from "./resize";
export { createEmptySection } from "./create";
export { removeSections } from "./remove";

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import { traverse, getSectionMetadatas, shiftSection } from "@webassemblyjs/ast";
import { overrideBytesInBuffer } from "@webassemblyjs/helper-buffer";
export function removeSections(ast, uint8Buffer, section) {
var sectionMetadatas = getSectionMetadatas(ast, section);
if (sectionMetadatas.length === 0) {
throw new Error("Section metadata not found");
}
return sectionMetadatas.reverse().reduce(function (uint8Buffer, sectionMetadata) {
var startsIncludingId = sectionMetadata.startOffset - 1;
var ends = section === "start" ? sectionMetadata.size.loc.end.column + 1 : sectionMetadata.startOffset + sectionMetadata.size.value + 1;
var delta = -(ends - startsIncludingId);
/**
* update AST
*/
// 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 path.remove();
}
if (encounteredSection === true) {
shiftSection(ast, path.node, delta);
}
}
}); // replacement is nothing
var replacement = [];
return overrideBytesInBuffer(uint8Buffer, startsIncludingId, ends, replacement);
}, uint8Buffer);
}

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import { encodeU32 } from "@webassemblyjs/wasm-gen";
import { getSectionMetadata, traverse, shiftSection } from "@webassemblyjs/ast";
import { overrideBytesInBuffer } from "@webassemblyjs/helper-buffer";
export function resizeSectionByteSize(ast, uint8Buffer, section, deltaBytes) {
var sectionMetadata = 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 = 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;
traverse(ast, {
SectionMetadata: function SectionMetadata(path) {
if (path.node.section === section) {
encounteredSection = true;
return;
}
if (encounteredSection === true) {
shiftSection(ast, path.node, deltaBytes);
}
}
});
return overrideBytesInBuffer(uint8Buffer, start, end, newBytes);
}
export function resizeSectionVecSize(ast, uint8Buffer, section, deltaElements) {
var sectionMetadata = 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 = encodeU32(newValue); // Update AST
sectionMetadata.vectorOfSize.value = newValue;
sectionMetadata.vectorOfSize.loc.end.column = start + newBytes.length;
return overrideBytesInBuffer(uint8Buffer, start, end, newBytes);
}

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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.createEmptySection = createEmptySection;
var _wasmGen = require("@webassemblyjs/wasm-gen");
var _helperBuffer = require("@webassemblyjs/helper-buffer");
var _helperWasmBytecode = _interopRequireDefault(require("@webassemblyjs/helper-wasm-bytecode"));
var t = _interopRequireWildcard(require("@webassemblyjs/ast"));
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
function findLastSection(ast, forSection) {
var targetSectionId = _helperWasmBytecode.default.sections[forSection]; // $FlowIgnore: metadata can not be empty
var moduleSections = ast.body[0].metadata.sections;
var lastSection;
var lastId = 0;
for (var i = 0, len = moduleSections.length; i < len; i++) {
var section = moduleSections[i]; // Ignore custom section since they can actually occur everywhere
if (section.section === "custom") {
continue;
}
var sectionId = _helperWasmBytecode.default.sections[section.section];
if (targetSectionId > lastId && targetSectionId < sectionId) {
return lastSection;
}
lastId = sectionId;
lastSection = section;
}
return lastSection;
}
function createEmptySection(ast, uint8Buffer, section) {
// previous section after which we are going to insert our section
var lastSection = findLastSection(ast, section);
var start, end;
/**
* It's the first section
*/
if (lastSection == null || lastSection.section === "custom") {
start = 8
/* wasm header size */
;
end = start;
} else {
start = lastSection.startOffset + lastSection.size.value + 1;
end = start;
} // section id
start += 1;
var sizeStartLoc = {
line: -1,
column: start
};
var sizeEndLoc = {
line: -1,
column: start + 1
}; // 1 byte for the empty vector
var size = t.withLoc(t.numberLiteralFromRaw(1), sizeEndLoc, sizeStartLoc);
var vectorOfSizeStartLoc = {
line: -1,
column: sizeEndLoc.column
};
var vectorOfSizeEndLoc = {
line: -1,
column: sizeEndLoc.column + 1
};
var vectorOfSize = t.withLoc(t.numberLiteralFromRaw(0), vectorOfSizeEndLoc, vectorOfSizeStartLoc);
var sectionMetadata = t.sectionMetadata(section, start, size, vectorOfSize);
var sectionBytes = (0, _wasmGen.encodeNode)(sectionMetadata);
uint8Buffer = (0, _helperBuffer.overrideBytesInBuffer)(uint8Buffer, start - 1, end, sectionBytes); // Add section into the AST for later lookups
if (_typeof(ast.body[0].metadata) === "object") {
// $FlowIgnore: metadata can not be empty
ast.body[0].metadata.sections.push(sectionMetadata);
t.sortSectionMetadata(ast.body[0]);
}
/**
* Update AST
*/
// Once we hit our section every that is after needs to be shifted by the delta
var deltaBytes = +sectionBytes.length;
var encounteredSection = false;
t.traverse(ast, {
SectionMetadata: function SectionMetadata(path) {
if (path.node.section === section) {
encounteredSection = true;
return;
}
if (encounteredSection === true) {
t.shiftSection(ast, path.node, deltaBytes);
}
}
});
return {
uint8Buffer: uint8Buffer,
sectionMetadata: sectionMetadata
};
}

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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
Object.defineProperty(exports, "resizeSectionByteSize", {
enumerable: true,
get: function get() {
return _resize.resizeSectionByteSize;
}
});
Object.defineProperty(exports, "resizeSectionVecSize", {
enumerable: true,
get: function get() {
return _resize.resizeSectionVecSize;
}
});
Object.defineProperty(exports, "createEmptySection", {
enumerable: true,
get: function get() {
return _create.createEmptySection;
}
});
Object.defineProperty(exports, "removeSections", {
enumerable: true,
get: function get() {
return _remove.removeSections;
}
});
var _resize = require("./resize");
var _create = require("./create");
var _remove = require("./remove");

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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.removeSections = removeSections;
var _ast = require("@webassemblyjs/ast");
var _helperBuffer = require("@webassemblyjs/helper-buffer");
function removeSections(ast, uint8Buffer, section) {
var sectionMetadatas = (0, _ast.getSectionMetadatas)(ast, section);
if (sectionMetadatas.length === 0) {
throw new Error("Section metadata not found");
}
return sectionMetadatas.reverse().reduce(function (uint8Buffer, sectionMetadata) {
var startsIncludingId = sectionMetadata.startOffset - 1;
var ends = section === "start" ? sectionMetadata.size.loc.end.column + 1 : sectionMetadata.startOffset + sectionMetadata.size.value + 1;
var delta = -(ends - startsIncludingId);
/**
* update AST
*/
// 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 path.remove();
}
if (encounteredSection === true) {
(0, _ast.shiftSection)(ast, path.node, delta);
}
}
}); // replacement is nothing
var replacement = [];
return (0, _helperBuffer.overrideBytesInBuffer)(uint8Buffer, startsIncludingId, ends, replacement);
}, uint8Buffer);
}

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"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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{
"name": "@webassemblyjs/helper-wasm-section",
"version": "1.9.0",
"description": "",
"main": "lib/index.js",
"module": "esm/index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"repository": {
"type": "git",
"url": "https://github.com/xtuc/webassemblyjs.git"
},
"publishConfig": {
"access": "public"
},
"author": "Sven Sauleau",
"license": "MIT",
"dependencies": {
"@webassemblyjs/ast": "1.9.0",
"@webassemblyjs/helper-buffer": "1.9.0",
"@webassemblyjs/helper-wasm-bytecode": "1.9.0",
"@webassemblyjs/wasm-gen": "1.9.0"
},
"devDependencies": {
"@webassemblyjs/wasm-parser": "1.9.0"
},
"gitHead": "0440b420888c1f7701eb9762ec657775506b87d8"
}