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Avoid unnecessary assembly/type lookups when retrieving cached method handles

This commit is contained in:
Steve Sanderson 2018-04-02 13:11:04 +01:00
parent 590a47f6c7
commit 1fe90e2c0f
1 changed files with 42 additions and 31 deletions
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73
src/Microsoft.AspNetCore.Blazor.Browser.JS/src/Platform/Mono/MonoPlatform.ts
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@ -2,9 +2,9 @@
import { getAssemblyNameFromUrl } from '../DotNet'; import { getAssemblyNameFromUrl } from '../DotNet';
import { getRegisteredFunction } from '../../Interop/RegisteredFunction'; import { getRegisteredFunction } from '../../Interop/RegisteredFunction';
const registeredAssemblies: { [identifier: string]: number } = {}; const assemblyHandleCache: { [assemblyName: string]: number } = {};
const registeredClasses: { [identifier: string]: number } = {}; const typeHandleCache: { [fullyQualifiedTypeName: string]: number } = {};
const registeredMethods: { [identifier: string]: MethodHandle } = {}; const methodHandleCache: { [fullyQualifiedMethodName: string]: MethodHandle } = {};
let assembly_load: (assemblyName: string) => number; let assembly_load: (assemblyName: string) => number;
let find_class: (assemblyHandle: number, namespace: string, className: string) => number; let find_class: (assemblyHandle: number, namespace: string, className: string) => number;
@ -28,34 +28,7 @@ export const monoPlatform: Platform = {
}); });
}, },
findMethod: function findMethod(assemblyName: string, namespace: string, className: string, methodName: string): MethodHandle { findMethod: findMethod,
let assemblyHandle: number | undefined = registeredAssemblies[`[${assemblyName}]`];
if (!assemblyHandle) {
assemblyHandle = assembly_load(assemblyName);
if (!assemblyHandle) {
throw new Error(`Could not find assembly "${assemblyName}"`);
}
registeredAssemblies[`[${assemblyName}]`] = assemblyHandle;
}
let typeHandle: number | undefined = registeredClasses[`[${assemblyName}]${namespace}.${className}`];
if (!typeHandle) {
typeHandle = find_class(assemblyHandle as number, namespace, className);
if (!typeHandle) {
throw new Error(`Could not find type "${className}" in namespace "${namespace}" in assembly "${assemblyName}"`);
}
registeredClasses[`[${assemblyName}]${namespace}.${className}`] = typeHandle;
}
let methodHandle = registeredMethods[`[${assemblyName}]${namespace}.${className}.${methodName}`]
if (!methodHandle) {
methodHandle = find_method(typeHandle as number, methodName, -1);
if (!methodHandle) {
throw new Error(`Could not find method "${methodName}" on type "${namespace}.${className}"`);
}
registeredMethods[`[${assemblyName}]${namespace}.${className}.${methodName}`] = methodHandle;
}
return methodHandle;
},
callEntryPoint: function callEntryPoint(assemblyName: string, entrypointMethod: string, args: System_Object[]): void { callEntryPoint: function callEntryPoint(assemblyName: string, entrypointMethod: string, args: System_Object[]): void {
// Parse the entrypointMethod, which is of the form MyApp.MyNamespace.MyTypeName::MyMethodName // Parse the entrypointMethod, which is of the form MyApp.MyNamespace.MyTypeName::MyMethodName
@ -155,6 +128,44 @@ export const monoPlatform: Platform = {
// the JS code in Mono's driver.c. It's never intended to be called from TypeScript. // the JS code in Mono's driver.c. It's never intended to be called from TypeScript.
(monoPlatform as any).monoGetRegisteredFunction = getRegisteredFunction; (monoPlatform as any).monoGetRegisteredFunction = getRegisteredFunction;
function findAssembly(assemblyName: string): number {
let assemblyHandle = assemblyHandleCache[assemblyName];
if (!assemblyHandle) {
assemblyHandle = assembly_load(assemblyName);
if (!assemblyHandle) {
throw new Error(`Could not find assembly "${assemblyName}"`);
}
assemblyHandleCache[assemblyName] = assemblyHandle;
}
return assemblyHandle;
}
function findType(assemblyName: string, namespace: string, className: string): number {
const fullyQualifiedTypeName = `[${assemblyName}]${namespace}.${className}`;
let typeHandle = typeHandleCache[fullyQualifiedTypeName];
if (!typeHandle) {
typeHandle = find_class(findAssembly(assemblyName), namespace, className);
if (!typeHandle) {
throw new Error(`Could not find type "${className}" in namespace "${namespace}" in assembly "${assemblyName}"`);
}
typeHandleCache[fullyQualifiedTypeName] = typeHandle;
}
return typeHandle;
}
function findMethod(assemblyName: string, namespace: string, className: string, methodName: string): MethodHandle {
const fullyQualifiedMethodName = `[${assemblyName}]${namespace}.${className}::${methodName}`;
let methodHandle = methodHandleCache[fullyQualifiedMethodName];
if (!methodHandle) {
methodHandle = find_method(findType(assemblyName, namespace, className), methodName, -1);
if (!methodHandle) {
throw new Error(`Could not find method "${methodName}" on type "${namespace}.${className}"`);
}
methodHandleCache[fullyQualifiedMethodName] = methodHandle;
}
return methodHandle;
}
function addScriptTagsToDocument() { function addScriptTagsToDocument() {
// Load either the wasm or asm.js version of the Mono runtime // Load either the wasm or asm.js version of the Mono runtime
const browserSupportsNativeWebAssembly = typeof WebAssembly !== 'undefined' && WebAssembly.validate; const browserSupportsNativeWebAssembly = typeof WebAssembly !== 'undefined' && WebAssembly.validate;