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This book constitutes the proceedings of the 18th Asian Symposium on Programming Languages and Systems, APLAS 2020, held in Fukuoka, Japan, in December 2020.*The 19 papers presented in this volume were carefully reviewed and selected from 46 submissions. They were organized in topical sections named: Invited Papers, Types, Program Analysis, Semantics, Language Design and Implementation, Concurrency, Verification, and Logic and Automata.
* The conference was held virtually due to the COVID-19 pandemic.
List of contents
Program Analysis and Verification.- A Set-Based Context Model for Program Analysis.- Declarative Stream Runtime Verification (hLola).- Formal Verification of Atomicity Requirements for Smart Contracts.- Types.- Neural Networks, Secure by Construction: An Exploration of Refinement Types.- A New Refinement Type System for Automated nu-HFLZ Validity Checking.- Behavioural Types for Memory and Method Safety in a Core Object-Oriented Language.- Syntactically Restricting Bounded Polymorphism for Decidable Subtyping.- Semantics.- An Abstract Machine for Strong Call by Value.- Certified Semantics for Relational Programming.- Algebraic and Coalgebraic Perspectives on Interaction Laws.- Program Generation, Transactions and Automation.- Stack-Driven Program Generation of WebAssembly.- Banyan: Coordination-free Transactions over Mergeable Replicated Data Types.- Automatically Generating Descriptive Texts in Logging Statements: How Far Are We?.- Synthesis and ProgramTransformation.- Synthesis and Program Transformation.- Relational Synthesis for Pattern Matching.- REFINITY to Model and Prove Program Transformation Rules.- Debugging, Profiling and Constraint Solving.- A Counterexample-Guided Debugger for Non-Recursive Datalog.- A Symbolic Algorithm for the Case-Split Rule in String Constraint Solving.- P3: A Profiler Suite for Parallel Applications on the Java Virtual Machine.
