130 lines
3.3 KiB
C++
130 lines
3.3 KiB
C++
// Copyright 2004-present Facebook. All Rights Reserved.
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#pragma once
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#include <algorithm>
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#include <functional>
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#include <stdexcept>
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#include <jschelpers/JavaScriptCore.h>
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#include <jschelpers/Value.h>
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#ifndef RN_EXPORT
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#define RN_EXPORT __attribute__((visibility("default")))
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#endif
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namespace facebook {
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namespace react {
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class JSException : public std::exception {
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public:
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explicit JSException(const char* msg)
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: msg_(msg) {}
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explicit JSException(JSContextRef ctx, JSValueRef exn, const char* msg) {
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buildMessage(ctx, exn, nullptr, msg);
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}
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explicit JSException(JSContextRef ctx, JSValueRef exn, JSStringRef sourceURL) {
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buildMessage(ctx, exn, sourceURL, nullptr);
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}
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const std::string& getStack() const {
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return stack_;
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}
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virtual const char* what() const noexcept override {
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return msg_.c_str();
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}
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private:
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std::string msg_;
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std::string stack_;
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void buildMessage(JSContextRef ctx, JSValueRef exn, JSStringRef sourceURL, const char* errorMsg);
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};
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namespace ExceptionHandling {
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struct ExtractedEror {
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std::string message;
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// Stacktrace formatted like JS stack
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// method@filename[:line[:column]]
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std::string stack;
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};
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using PlatformErrorExtractor = std::function<ExtractedEror(const std::exception &ex, const char *context)>;
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extern PlatformErrorExtractor platformErrorExtractor;
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}
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using JSFunction = std::function<JSValueRef(JSContextRef, JSObjectRef, size_t, const JSValueRef[])>;
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JSObjectRef makeFunction(
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JSContextRef ctx,
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const char* name,
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JSFunction function);
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RN_EXPORT void installGlobalFunction(
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JSGlobalContextRef ctx,
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const char* name,
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JSFunction function);
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JSObjectRef makeFunction(
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JSGlobalContextRef ctx,
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const char* name,
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JSObjectCallAsFunctionCallback callback);
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void installGlobalFunction(
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JSGlobalContextRef ctx,
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const char* name,
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JSObjectCallAsFunctionCallback callback);
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void installGlobalProxy(
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JSGlobalContextRef ctx,
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const char* name,
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JSObjectGetPropertyCallback callback);
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void removeGlobal(JSGlobalContextRef ctx, const char* name);
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JSValueRef evaluateScript(
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JSContextRef ctx,
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JSStringRef script,
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JSStringRef sourceURL);
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#if WITH_FBJSCEXTENSIONS
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JSValueRef evaluateSourceCode(
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JSContextRef ctx,
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JSSourceCodeRef source,
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JSStringRef sourceURL);
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#endif
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JSValueRef translatePendingCppExceptionToJSError(JSContextRef ctx, const char *exceptionLocation);
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JSValueRef translatePendingCppExceptionToJSError(JSContextRef ctx, JSObjectRef jsFunctionCause);
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template<JSValueRef (method)(JSContextRef ctx,
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JSObjectRef function,
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JSObjectRef thisObject,
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size_t argumentCount,
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const JSValueRef arguments[],
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JSValueRef *exception)>
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inline JSObjectCallAsFunctionCallback exceptionWrapMethod() {
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struct funcWrapper {
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static JSValueRef call(
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JSContextRef ctx,
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JSObjectRef function,
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JSObjectRef thisObject,
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size_t argumentCount,
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const JSValueRef arguments[],
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JSValueRef *exception) {
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try {
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return (*method)(ctx, function, thisObject, argumentCount, arguments, exception);
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} catch (...) {
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*exception = translatePendingCppExceptionToJSError(ctx, function);
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return JSC_JSValueMakeUndefined(ctx);
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}
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}
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};
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return &funcWrapper::call;
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}
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} }
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