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Diffstat (limited to 'runtime/lambda/art_lambda_method.h')
-rw-r--r-- | runtime/lambda/art_lambda_method.h | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/runtime/lambda/art_lambda_method.h b/runtime/lambda/art_lambda_method.h deleted file mode 100644 index ea13eb7af6..0000000000 --- a/runtime/lambda/art_lambda_method.h +++ /dev/null @@ -1,116 +0,0 @@ -/* - * Copyright (C) 2015 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -#ifndef ART_RUNTIME_LAMBDA_ART_LAMBDA_METHOD_H_ -#define ART_RUNTIME_LAMBDA_ART_LAMBDA_METHOD_H_ - -#include "base/macros.h" -#include "art_method.h" - -#include <stdint.h> - -namespace art { -namespace lambda { - -class ArtLambdaMethod { - public: - // Construct an art lambda method. - // The target method is the one invoked by invoke-lambda. - // The type descriptor describes the types of variables captured, e.g. "ZFLObject;\FI;[Z" - // The shorty drops the object name and treats arrays as objects, e.g. "ZFL\L" - // Innate lambda means that the lambda was originally created via invoke-lambda. - // -- Non-innate lambdas (learned lambdas) come from a regular class that was boxed to lambda. - // (Ownership of strings is retained by the caller and the lifetime should exceed this class). - ArtLambdaMethod(ArtMethod* target_method, - const char* captured_variables_type_descriptor, - const char* captured_variables_shorty, - bool innate_lambda = true); - - // Get the target method for this lambda that would be used by the invoke-lambda dex instruction. - ArtMethod* GetArtMethod() const { - return method_; - } - - // Get the compile-time size of lambda closures for this method in bytes. - // This is circular (that is, it includes the size of the ArtLambdaMethod pointer). - // One should also check if the size is dynamic since nested lambdas have a runtime size. - size_t GetStaticClosureSize() const { - return closure_size_; - } - - // Get the type descriptor for the list of captured variables. - // e.g. "ZFLObject;\FI;[Z" means a captured int, float, class Object, lambda FI, array of ints - const char* GetCapturedVariablesTypeDescriptor() const { - return captured_variables_type_descriptor_; - } - - // Get the shorty 'field' type descriptor list of captured variables. - // This follows the same rules as a string of ShortyFieldType in the dex specification. - // Every captured variable is represented by exactly one character. - // - Objects become 'L'. - // - Arrays become 'L'. - // - Lambdas become '\'. - const char* GetCapturedVariablesShortyTypeDescriptor() const { - return captured_variables_shorty_; - } - - // Will the size of this lambda change at runtime? - // Only returns true if there is a nested lambda that we can't determine statically the size of. - bool IsDynamicSize() const { - return dynamic_size_; - } - - // Will the size of this lambda always be constant at runtime? - // This generally means there's no nested lambdas, or we were able to successfully determine - // their size statically at compile time. - bool IsStaticSize() const { - return !IsDynamicSize(); - } - // Is this a lambda that was originally created via invoke-lambda? - // -- Non-innate lambdas (learned lambdas) come from a regular class that was boxed to lambda. - bool IsInnateLambda() const { - return innate_lambda_; - } - - // How many variables were captured? - // (Each nested lambda counts as 1 captured var regardless of how many captures it itself has). - size_t GetNumberOfCapturedVariables() const { - return strlen(captured_variables_shorty_); - } - - private: - // TODO: ArtMethod, or at least the entry points should be inlined into this struct - // to avoid an extra indirect load when doing invokes. - // Target method that invoke-lambda will jump to. - ArtMethod* method_; - // How big the closure is (in bytes). Only includes the constant size. - size_t closure_size_; - // The type descriptor for the captured variables, e.g. "IS" for [int, short] - const char* captured_variables_type_descriptor_; - // The shorty type descriptor for captured vars, (e.g. using 'L' instead of 'LObject;') - const char* captured_variables_shorty_; - // Whether or not the size is dynamic. If it is, copiers need to read the Closure size at runtime. - bool dynamic_size_; - // True if this lambda was originally made with create-lambda, - // false if it came from a class instance (through new-instance and then unbox-lambda). - bool innate_lambda_; - - DISALLOW_COPY_AND_ASSIGN(ArtLambdaMethod); -}; - -} // namespace lambda -} // namespace art - -#endif // ART_RUNTIME_LAMBDA_ART_LAMBDA_METHOD_H_ |