diff options
Diffstat (limited to 'node_modules/@webassemblyjs/helper-module-context')
6 files changed, 1235 insertions, 0 deletions
diff --git a/node_modules/@webassemblyjs/helper-module-context/LICENSE b/node_modules/@webassemblyjs/helper-module-context/LICENSE new file mode 100644 index 0000000..87e7e1f --- /dev/null +++ b/node_modules/@webassemblyjs/helper-module-context/LICENSE @@ -0,0 +1,21 @@ +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. diff --git a/node_modules/@webassemblyjs/helper-module-context/esm/index.js b/node_modules/@webassemblyjs/helper-module-context/esm/index.js new file mode 100644 index 0000000..0f730e6 --- /dev/null +++ b/node_modules/@webassemblyjs/helper-module-context/esm/index.js @@ -0,0 +1,378 @@ +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + +// TODO(sven): add flow in here +import { isSignature, isNumberLiteral } from "@webassemblyjs/ast"; +export function moduleContextFromModuleAST(m) { + var moduleContext = new ModuleContext(); + + if (!(m.type === "Module")) { + throw new Error('m.type === "Module"' + " error: " + (undefined || "unknown")); + } + + m.fields.forEach(function (field) { + switch (field.type) { + case "Start": + { + moduleContext.setStart(field.index); + break; + } + + case "TypeInstruction": + { + moduleContext.addType(field); + break; + } + + case "Func": + { + moduleContext.addFunction(field); + break; + } + + case "Global": + { + moduleContext.defineGlobal(field); + break; + } + + case "ModuleImport": + { + switch (field.descr.type) { + case "GlobalType": + { + moduleContext.importGlobal(field.descr.valtype, field.descr.mutability); + break; + } + + case "Memory": + { + moduleContext.addMemory(field.descr.limits.min, field.descr.limits.max); + break; + } + + case "FuncImportDescr": + { + moduleContext.importFunction(field.descr); + break; + } + + case "Table": + { + // FIXME(sven): not implemented yet + break; + } + + default: + throw new Error("Unsupported ModuleImport of type " + JSON.stringify(field.descr.type)); + } + + break; + } + + case "Memory": + { + moduleContext.addMemory(field.limits.min, field.limits.max); + break; + } + } + }); + return moduleContext; +} +/** + * Module context for type checking + */ + +export var ModuleContext = +/*#__PURE__*/ +function () { + function ModuleContext() { + _classCallCheck(this, ModuleContext); + + this.funcs = []; + this.funcsOffsetByIdentifier = []; + this.types = []; + this.globals = []; + this.globalsOffsetByIdentifier = []; + this.mems = []; // Current stack frame + + this.locals = []; + this.labels = []; + this.return = []; + this.debugName = "unknown"; + this.start = null; + } + /** + * Set start segment + */ + + + _createClass(ModuleContext, [{ + key: "setStart", + value: function setStart(index) { + this.start = index.value; + } + /** + * Get start function + */ + + }, { + key: "getStart", + value: function getStart() { + return this.start; + } + /** + * Reset the active stack frame + */ + + }, { + key: "newContext", + value: function newContext(debugName, expectedResult) { + this.locals = []; + this.labels = [expectedResult]; + this.return = expectedResult; + this.debugName = debugName; + } + /** + * Functions + */ + + }, { + key: "addFunction", + value: function addFunction(func + /*: Func*/ + ) { + // eslint-disable-next-line prefer-const + var _ref = func.signature || {}, + _ref$params = _ref.params, + args = _ref$params === void 0 ? [] : _ref$params, + _ref$results = _ref.results, + result = _ref$results === void 0 ? [] : _ref$results; + + args = args.map(function (arg) { + return arg.valtype; + }); + this.funcs.push({ + args: args, + result: result + }); + + if (typeof func.name !== "undefined") { + this.funcsOffsetByIdentifier[func.name.value] = this.funcs.length - 1; + } + } + }, { + key: "importFunction", + value: function importFunction(funcimport) { + if (isSignature(funcimport.signature)) { + // eslint-disable-next-line prefer-const + var _funcimport$signature = funcimport.signature, + args = _funcimport$signature.params, + result = _funcimport$signature.results; + args = args.map(function (arg) { + return arg.valtype; + }); + this.funcs.push({ + args: args, + result: result + }); + } else { + if (!isNumberLiteral(funcimport.signature)) { + throw new Error('isNumberLiteral(funcimport.signature)' + " error: " + (undefined || "unknown")); + } + + var typeId = funcimport.signature.value; + + if (!this.hasType(typeId)) { + throw new Error('this.hasType(typeId)' + " error: " + (undefined || "unknown")); + } + + var signature = this.getType(typeId); + this.funcs.push({ + args: signature.params.map(function (arg) { + return arg.valtype; + }), + result: signature.results + }); + } + + if (typeof funcimport.id !== "undefined") { + // imports are first, we can assume their index in the array + this.funcsOffsetByIdentifier[funcimport.id.value] = this.funcs.length - 1; + } + } + }, { + key: "hasFunction", + value: function hasFunction(index) { + return typeof this.getFunction(index) !== "undefined"; + } + }, { + key: "getFunction", + value: function getFunction(index) { + if (typeof index !== "number") { + throw new Error("getFunction only supported for number index"); + } + + return this.funcs[index]; + } + }, { + key: "getFunctionOffsetByIdentifier", + value: function getFunctionOffsetByIdentifier(name) { + if (!(typeof name === "string")) { + throw new Error('typeof name === "string"' + " error: " + (undefined || "unknown")); + } + + return this.funcsOffsetByIdentifier[name]; + } + /** + * Labels + */ + + }, { + key: "addLabel", + value: function addLabel(result) { + this.labels.unshift(result); + } + }, { + key: "hasLabel", + value: function hasLabel(index) { + return this.labels.length > index && index >= 0; + } + }, { + key: "getLabel", + value: function getLabel(index) { + return this.labels[index]; + } + }, { + key: "popLabel", + value: function popLabel() { + this.labels.shift(); + } + /** + * Locals + */ + + }, { + key: "hasLocal", + value: function hasLocal(index) { + return typeof this.getLocal(index) !== "undefined"; + } + }, { + key: "getLocal", + value: function getLocal(index) { + return this.locals[index]; + } + }, { + key: "addLocal", + value: function addLocal(type) { + this.locals.push(type); + } + /** + * Types + */ + + }, { + key: "addType", + value: function addType(type) { + if (!(type.functype.type === "Signature")) { + throw new Error('type.functype.type === "Signature"' + " error: " + (undefined || "unknown")); + } + + this.types.push(type.functype); + } + }, { + key: "hasType", + value: function hasType(index) { + return this.types[index] !== undefined; + } + }, { + key: "getType", + value: function getType(index) { + return this.types[index]; + } + /** + * Globals + */ + + }, { + key: "hasGlobal", + value: function hasGlobal(index) { + return this.globals.length > index && index >= 0; + } + }, { + key: "getGlobal", + value: function getGlobal(index) { + return this.globals[index].type; + } + }, { + key: "getGlobalOffsetByIdentifier", + value: function getGlobalOffsetByIdentifier(name) { + if (!(typeof name === "string")) { + throw new Error('typeof name === "string"' + " error: " + (undefined || "unknown")); + } + + return this.globalsOffsetByIdentifier[name]; + } + }, { + key: "defineGlobal", + value: function defineGlobal(global + /*: Global*/ + ) { + var type = global.globalType.valtype; + var mutability = global.globalType.mutability; + this.globals.push({ + type: type, + mutability: mutability + }); + + if (typeof global.name !== "undefined") { + this.globalsOffsetByIdentifier[global.name.value] = this.globals.length - 1; + } + } + }, { + key: "importGlobal", + value: function importGlobal(type, mutability) { + this.globals.push({ + type: type, + mutability: mutability + }); + } + }, { + key: "isMutableGlobal", + value: function isMutableGlobal(index) { + return this.globals[index].mutability === "var"; + } + }, { + key: "isImmutableGlobal", + value: function isImmutableGlobal(index) { + return this.globals[index].mutability === "const"; + } + /** + * Memories + */ + + }, { + key: "hasMemory", + value: function hasMemory(index) { + return this.mems.length > index && index >= 0; + } + }, { + key: "addMemory", + value: function addMemory(min, max) { + this.mems.push({ + min: min, + max: max + }); + } + }, { + key: "getMemory", + value: function getMemory(index) { + return this.mems[index]; + } + }]); + + return ModuleContext; +}();
\ No newline at end of file diff --git a/node_modules/@webassemblyjs/helper-module-context/lib/index.js b/node_modules/@webassemblyjs/helper-module-context/lib/index.js new file mode 100644 index 0000000..189e719 --- /dev/null +++ b/node_modules/@webassemblyjs/helper-module-context/lib/index.js @@ -0,0 +1,389 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.moduleContextFromModuleAST = moduleContextFromModuleAST; +exports.ModuleContext = void 0; + +var _ast = require("@webassemblyjs/ast"); + +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + +function moduleContextFromModuleAST(m) { + var moduleContext = new ModuleContext(); + + if (!(m.type === "Module")) { + throw new Error('m.type === "Module"' + " error: " + (undefined || "unknown")); + } + + m.fields.forEach(function (field) { + switch (field.type) { + case "Start": + { + moduleContext.setStart(field.index); + break; + } + + case "TypeInstruction": + { + moduleContext.addType(field); + break; + } + + case "Func": + { + moduleContext.addFunction(field); + break; + } + + case "Global": + { + moduleContext.defineGlobal(field); + break; + } + + case "ModuleImport": + { + switch (field.descr.type) { + case "GlobalType": + { + moduleContext.importGlobal(field.descr.valtype, field.descr.mutability); + break; + } + + case "Memory": + { + moduleContext.addMemory(field.descr.limits.min, field.descr.limits.max); + break; + } + + case "FuncImportDescr": + { + moduleContext.importFunction(field.descr); + break; + } + + case "Table": + { + // FIXME(sven): not implemented yet + break; + } + + default: + throw new Error("Unsupported ModuleImport of type " + JSON.stringify(field.descr.type)); + } + + break; + } + + case "Memory": + { + moduleContext.addMemory(field.limits.min, field.limits.max); + break; + } + } + }); + return moduleContext; +} +/** + * Module context for type checking + */ + + +var ModuleContext = +/*#__PURE__*/ +function () { + function ModuleContext() { + _classCallCheck(this, ModuleContext); + + this.funcs = []; + this.funcsOffsetByIdentifier = []; + this.types = []; + this.globals = []; + this.globalsOffsetByIdentifier = []; + this.mems = []; // Current stack frame + + this.locals = []; + this.labels = []; + this.return = []; + this.debugName = "unknown"; + this.start = null; + } + /** + * Set start segment + */ + + + _createClass(ModuleContext, [{ + key: "setStart", + value: function setStart(index) { + this.start = index.value; + } + /** + * Get start function + */ + + }, { + key: "getStart", + value: function getStart() { + return this.start; + } + /** + * Reset the active stack frame + */ + + }, { + key: "newContext", + value: function newContext(debugName, expectedResult) { + this.locals = []; + this.labels = [expectedResult]; + this.return = expectedResult; + this.debugName = debugName; + } + /** + * Functions + */ + + }, { + key: "addFunction", + value: function addFunction(func + /*: Func*/ + ) { + // eslint-disable-next-line prefer-const + var _ref = func.signature || {}, + _ref$params = _ref.params, + args = _ref$params === void 0 ? [] : _ref$params, + _ref$results = _ref.results, + result = _ref$results === void 0 ? [] : _ref$results; + + args = args.map(function (arg) { + return arg.valtype; + }); + this.funcs.push({ + args: args, + result: result + }); + + if (typeof func.name !== "undefined") { + this.funcsOffsetByIdentifier[func.name.value] = this.funcs.length - 1; + } + } + }, { + key: "importFunction", + value: function importFunction(funcimport) { + if ((0, _ast.isSignature)(funcimport.signature)) { + // eslint-disable-next-line prefer-const + var _funcimport$signature = funcimport.signature, + args = _funcimport$signature.params, + result = _funcimport$signature.results; + args = args.map(function (arg) { + return arg.valtype; + }); + this.funcs.push({ + args: args, + result: result + }); + } else { + if (!(0, _ast.isNumberLiteral)(funcimport.signature)) { + throw new Error('isNumberLiteral(funcimport.signature)' + " error: " + (undefined || "unknown")); + } + + var typeId = funcimport.signature.value; + + if (!this.hasType(typeId)) { + throw new Error('this.hasType(typeId)' + " error: " + (undefined || "unknown")); + } + + var signature = this.getType(typeId); + this.funcs.push({ + args: signature.params.map(function (arg) { + return arg.valtype; + }), + result: signature.results + }); + } + + if (typeof funcimport.id !== "undefined") { + // imports are first, we can assume their index in the array + this.funcsOffsetByIdentifier[funcimport.id.value] = this.funcs.length - 1; + } + } + }, { + key: "hasFunction", + value: function hasFunction(index) { + return typeof this.getFunction(index) !== "undefined"; + } + }, { + key: "getFunction", + value: function getFunction(index) { + if (typeof index !== "number") { + throw new Error("getFunction only supported for number index"); + } + + return this.funcs[index]; + } + }, { + key: "getFunctionOffsetByIdentifier", + value: function getFunctionOffsetByIdentifier(name) { + if (!(typeof name === "string")) { + throw new Error('typeof name === "string"' + " error: " + (undefined || "unknown")); + } + + return this.funcsOffsetByIdentifier[name]; + } + /** + * Labels + */ + + }, { + key: "addLabel", + value: function addLabel(result) { + this.labels.unshift(result); + } + }, { + key: "hasLabel", + value: function hasLabel(index) { + return this.labels.length > index && index >= 0; + } + }, { + key: "getLabel", + value: function getLabel(index) { + return this.labels[index]; + } + }, { + key: "popLabel", + value: function popLabel() { + this.labels.shift(); + } + /** + * Locals + */ + + }, { + key: "hasLocal", + value: function hasLocal(index) { + return typeof this.getLocal(index) !== "undefined"; + } + }, { + key: "getLocal", + value: function getLocal(index) { + return this.locals[index]; + } + }, { + key: "addLocal", + value: function addLocal(type) { + this.locals.push(type); + } + /** + * Types + */ + + }, { + key: "addType", + value: function addType(type) { + if (!(type.functype.type === "Signature")) { + throw new Error('type.functype.type === "Signature"' + " error: " + (undefined || "unknown")); + } + + this.types.push(type.functype); + } + }, { + key: "hasType", + value: function hasType(index) { + return this.types[index] !== undefined; + } + }, { + key: "getType", + value: function getType(index) { + return this.types[index]; + } + /** + * Globals + */ + + }, { + key: "hasGlobal", + value: function hasGlobal(index) { + return this.globals.length > index && index >= 0; + } + }, { + key: "getGlobal", + value: function getGlobal(index) { + return this.globals[index].type; + } + }, { + key: "getGlobalOffsetByIdentifier", + value: function getGlobalOffsetByIdentifier(name) { + if (!(typeof name === "string")) { + throw new Error('typeof name === "string"' + " error: " + (undefined || "unknown")); + } + + return this.globalsOffsetByIdentifier[name]; + } + }, { + key: "defineGlobal", + value: function defineGlobal(global + /*: Global*/ + ) { + var type = global.globalType.valtype; + var mutability = global.globalType.mutability; + this.globals.push({ + type: type, + mutability: mutability + }); + + if (typeof global.name !== "undefined") { + this.globalsOffsetByIdentifier[global.name.value] = this.globals.length - 1; + } + } + }, { + key: "importGlobal", + value: function importGlobal(type, mutability) { + this.globals.push({ + type: type, + mutability: mutability + }); + } + }, { + key: "isMutableGlobal", + value: function isMutableGlobal(index) { + return this.globals[index].mutability === "var"; + } + }, { + key: "isImmutableGlobal", + value: function isImmutableGlobal(index) { + return this.globals[index].mutability === "const"; + } + /** + * Memories + */ + + }, { + key: "hasMemory", + value: function hasMemory(index) { + return this.mems.length > index && index >= 0; + } + }, { + key: "addMemory", + value: function addMemory(min, max) { + this.mems.push({ + min: min, + max: max + }); + } + }, { + key: "getMemory", + value: function getMemory(index) { + return this.mems[index]; + } + }]); + + return ModuleContext; +}(); + +exports.ModuleContext = ModuleContext;
\ No newline at end of file diff --git a/node_modules/@webassemblyjs/helper-module-context/package.json b/node_modules/@webassemblyjs/helper-module-context/package.json new file mode 100644 index 0000000..ee1c610 --- /dev/null +++ b/node_modules/@webassemblyjs/helper-module-context/package.json @@ -0,0 +1,60 @@ +{ + "_from": "@webassemblyjs/helper-module-context@1.9.0", + "_id": "@webassemblyjs/helper-module-context@1.9.0", + "_inBundle": false, + "_integrity": "sha512-MJCW8iGC08tMk2enck1aPW+BE5Cw8/7ph/VGZxwyvGbJwjktKkDK7vy7gAmMDx88D7mhDTCNKAW5tED+gZ0W8g==", + "_location": "/@webassemblyjs/helper-module-context", + "_phantomChildren": {}, + "_requested": { + "type": "version", + "registry": true, + "raw": "@webassemblyjs/helper-module-context@1.9.0", + "name": "@webassemblyjs/helper-module-context", + "escapedName": "@webassemblyjs%2fhelper-module-context", + "scope": "@webassemblyjs", + "rawSpec": "1.9.0", + "saveSpec": null, + "fetchSpec": "1.9.0" + }, + "_requiredBy": [ + "/@webassemblyjs/ast", + "/webpack" + ], + "_resolved": "https://registry.npmjs.org/@webassemblyjs/helper-module-context/-/helper-module-context-1.9.0.tgz", + "_shasum": "25d8884b76839871a08a6c6f806c3979ef712f07", + "_spec": "@webassemblyjs/helper-module-context@1.9.0", + "_where": "/home/pruss/Dev/3-minute-website/node_modules/webpack", + "author": { + "name": "Sven Sauleau" + }, + "bugs": { + "url": "https://github.com/xtuc/webassemblyjs/issues" + }, + "bundleDependencies": false, + "dependencies": { + "@webassemblyjs/ast": "1.9.0" + }, + "deprecated": false, + "description": "", + "devDependencies": { + "@webassemblyjs/wast-parser": "1.9.0", + "mamacro": "^0.0.7" + }, + "gitHead": "0440b420888c1f7701eb9762ec657775506b87d8", + "homepage": "https://github.com/xtuc/webassemblyjs#readme", + "license": "MIT", + "main": "lib/index.js", + "module": "esm/index.js", + "name": "@webassemblyjs/helper-module-context", + "publishConfig": { + "access": "public" + }, + "repository": { + "type": "git", + "url": "git+https://github.com/xtuc/webassemblyjs.git" + }, + "scripts": { + "test": "echo \"Error: no test specified\" && exit 1" + }, + "version": "1.9.0" +} diff --git a/node_modules/@webassemblyjs/helper-module-context/src/index.js b/node_modules/@webassemblyjs/helper-module-context/src/index.js new file mode 100644 index 0000000..e3171de --- /dev/null +++ b/node_modules/@webassemblyjs/helper-module-context/src/index.js @@ -0,0 +1,287 @@ +// TODO(sven): add flow in here + +import { isSignature, isNumberLiteral } from "@webassemblyjs/ast"; +import { assert } from "mamacro"; + +export function moduleContextFromModuleAST(m) { + const moduleContext = new ModuleContext(); + + assert(m.type === "Module"); + + m.fields.forEach(field => { + switch (field.type) { + case "Start": { + moduleContext.setStart(field.index); + break; + } + case "TypeInstruction": { + moduleContext.addType(field); + break; + } + case "Func": { + moduleContext.addFunction(field); + break; + } + case "Global": { + moduleContext.defineGlobal(field); + break; + } + case "ModuleImport": { + switch (field.descr.type) { + case "GlobalType": { + moduleContext.importGlobal( + field.descr.valtype, + field.descr.mutability + ); + break; + } + case "Memory": { + moduleContext.addMemory( + field.descr.limits.min, + field.descr.limits.max + ); + break; + } + case "FuncImportDescr": { + moduleContext.importFunction(field.descr); + break; + } + + case "Table": { + // FIXME(sven): not implemented yet + break; + } + + default: + throw new Error( + "Unsupported ModuleImport of type " + + JSON.stringify(field.descr.type) + ); + } + break; + } + case "Memory": { + moduleContext.addMemory(field.limits.min, field.limits.max); + break; + } + } + }); + + return moduleContext; +} + +/** + * Module context for type checking + */ +export class ModuleContext { + constructor() { + this.funcs = []; + this.funcsOffsetByIdentifier = []; + + this.types = []; + + this.globals = []; + this.globalsOffsetByIdentifier = []; + + this.mems = []; + + // Current stack frame + this.locals = []; + this.labels = []; + this.return = []; + + this.debugName = "unknown"; + + this.start = null; + } + + /** + * Set start segment + */ + setStart(index) { + this.start = index.value; + } + + /** + * Get start function + */ + getStart() { + return this.start; + } + + /** + * Reset the active stack frame + */ + newContext(debugName, expectedResult) { + this.locals = []; + this.labels = [expectedResult]; + this.return = expectedResult; + this.debugName = debugName; + } + + /** + * Functions + */ + addFunction(func /*: Func*/) { + // eslint-disable-next-line prefer-const + let { params: args = [], results: result = [] } = func.signature || {}; + + args = args.map(arg => arg.valtype); + + this.funcs.push({ args, result }); + + if (typeof func.name !== "undefined") { + this.funcsOffsetByIdentifier[func.name.value] = this.funcs.length - 1; + } + } + + importFunction(funcimport) { + if (isSignature(funcimport.signature)) { + // eslint-disable-next-line prefer-const + let { params: args, results: result } = funcimport.signature; + args = args.map(arg => arg.valtype); + + this.funcs.push({ args, result }); + } else { + assert(isNumberLiteral(funcimport.signature)); + + const typeId = funcimport.signature.value; + assert(this.hasType(typeId)); + + const signature = this.getType(typeId); + this.funcs.push({ + args: signature.params.map(arg => arg.valtype), + result: signature.results + }); + } + + if (typeof funcimport.id !== "undefined") { + // imports are first, we can assume their index in the array + this.funcsOffsetByIdentifier[funcimport.id.value] = this.funcs.length - 1; + } + } + + hasFunction(index) { + return typeof this.getFunction(index) !== "undefined"; + } + + getFunction(index) { + if (typeof index !== "number") { + throw new Error("getFunction only supported for number index"); + } + + return this.funcs[index]; + } + + getFunctionOffsetByIdentifier(name) { + assert(typeof name === "string"); + + return this.funcsOffsetByIdentifier[name]; + } + + /** + * Labels + */ + addLabel(result) { + this.labels.unshift(result); + } + + hasLabel(index) { + return this.labels.length > index && index >= 0; + } + + getLabel(index) { + return this.labels[index]; + } + + popLabel() { + this.labels.shift(); + } + + /** + * Locals + */ + hasLocal(index) { + return typeof this.getLocal(index) !== "undefined"; + } + + getLocal(index) { + return this.locals[index]; + } + + addLocal(type) { + this.locals.push(type); + } + + /** + * Types + */ + addType(type) { + assert(type.functype.type === "Signature"); + this.types.push(type.functype); + } + + hasType(index) { + return this.types[index] !== undefined; + } + + getType(index) { + return this.types[index]; + } + + /** + * Globals + */ + hasGlobal(index) { + return this.globals.length > index && index >= 0; + } + + getGlobal(index) { + return this.globals[index].type; + } + + getGlobalOffsetByIdentifier(name) { + assert(typeof name === "string"); + + return this.globalsOffsetByIdentifier[name]; + } + + defineGlobal(global /*: Global*/) { + const type = global.globalType.valtype; + const mutability = global.globalType.mutability; + + this.globals.push({ type, mutability }); + + if (typeof global.name !== "undefined") { + this.globalsOffsetByIdentifier[global.name.value] = + this.globals.length - 1; + } + } + + importGlobal(type, mutability) { + this.globals.push({ type, mutability }); + } + + isMutableGlobal(index) { + return this.globals[index].mutability === "var"; + } + + isImmutableGlobal(index) { + return this.globals[index].mutability === "const"; + } + + /** + * Memories + */ + hasMemory(index) { + return this.mems.length > index && index >= 0; + } + + addMemory(min, max) { + this.mems.push({ min, max }); + } + + getMemory(index) { + return this.mems[index]; + } +} diff --git a/node_modules/@webassemblyjs/helper-module-context/test/index.js b/node_modules/@webassemblyjs/helper-module-context/test/index.js new file mode 100644 index 0000000..2fbf58c --- /dev/null +++ b/node_modules/@webassemblyjs/helper-module-context/test/index.js @@ -0,0 +1,100 @@ +const { assert } = require("chai"); +const { parse } = require("@webassemblyjs/wast-parser"); + +const { moduleContextFromModuleAST } = require("../lib"); + +const contextFromWast = wast => moduleContextFromModuleAST(parse(wast).body[0]); + +describe("module context", () => { + describe("start segment", () => { + it("should return the start function offset", () => { + const context = contextFromWast(` + (module + (func) + (func) + (start 1) + ) + `); + + assert.isOk(context.getStart()); + assert.typeOf(context.getStart(), "number"); + assert.equal(context.getStart(), 1); + }); + + it("should return null if no start function", () => { + const context = contextFromWast(` + (module (func)) + `); + + assert.isNull(context.getStart()); + }); + + it("should retrive the type of implemented functions", () => { + const context = contextFromWast(` + (module + (func (param i32) (result i64)) + (func (param i64) (result i32)) + (func (result i64)) + (func) + ) + `); + + assert.deepEqual(context.getFunction(0), { + args: ["i32"], + result: ["i64"] + }); + assert.deepEqual(context.getFunction(1), { + args: ["i64"], + result: ["i32"] + }); + assert.deepEqual(context.getFunction(2), { args: [], result: ["i64"] }); + assert.deepEqual(context.getFunction(3), { args: [], result: [] }); + }); + + it("should retrive the type of imported functions", () => { + const context = contextFromWast(` + (module + (import "a" "a" (func (param i32) (result i32))) + (import "a" "b" (func (result i64))) + (import "a" "c" (func)) + (func (result f32)) + ) + `); + + assert.deepEqual(context.getFunction(0), { + args: ["i32"], + result: ["i32"] + }); + assert.deepEqual(context.getFunction(1), { + args: [], + result: ["i64"] + }); + assert.deepEqual(context.getFunction(2), { args: [], result: [] }); + assert.deepEqual(context.getFunction(3), { args: [], result: ["f32"] }); + }); + + it("should retrive the type of functions with type ref", () => { + const context = contextFromWast(` + (module + (type (func (param i32) (result i32))) + (type (func (result i64))) + (type (func)) + + (import "a" "a" (func (type 0))) + (import "a" "b" (func (type 1))) + (func (type 2)) + ) + `); + + assert.deepEqual(context.getFunction(0), { + args: ["i32"], + result: ["i32"] + }); + assert.deepEqual(context.getFunction(1), { + args: [], + result: ["i64"] + }); + assert.deepEqual(context.getFunction(2), { args: [], result: [] }); + }); + }); +}); |