'Typing rules' diaporamas de présentation

Type Safety

Type Safety. David Walker Princeton University. MinML. Syntax & Static Semantics. Abstract Syntax of MinML. The types of MinML are inductively defined by these rules: t ::= int | bool | t ? t. Abstract Syntax of MinML. The expressions of MinML are inductively defined by these rules:

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Types and Programming Languages

Types and Programming Languages. Lecture 5. Simon Gay Department of Computing Science University of Glasgow. 2006/07. A Practical Interlude. We want to understand how to convert the formal specification of a type system into an implemented typechecker.

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CSE-321 Programming Languages Extensions to the Simply Typed ? -Calculus

CSE-321 Programming Languages Extensions to the Simply Typed ? -Calculus. ???. POSTECH April 4, 2007. Abstract Syntax. Operational Semantics. Type System. Outline. Product types pairs generalized product types unit type Sum types Fixed point construct. Pairs in SML.

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CSE-321 Programming Languages Simply Typed ? -Calculus

CSE-321 Programming Languages Simply Typed ? -Calculus. ???. POSTECH March 28, 2007. ? -Calculus. Abstract syntax Operational semantics (call-by-value). Simulating Base Types. Booleans Natural numbers Fixed point combinator. Motivation. The ? -calculus is expressive.

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CSE341: Programming Languages Lecture 24 Subtyping

CSE341: Programming Languages Lecture 24 Subtyping. Dan Grossman Spring 2019. Last major topic: Subtyping. Build up key ideas from first principles In pseudocode because: No time for another language Simpler to first show subtyping without objects Then:

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CSE341: Programming Languages Lecture 25 Subtyping for Records and Functions

CSE341: Programming Languages Lecture 25 Subtyping for Records and Functions. Dan Grossman Fall 2011. Last major course topic: more types. SML and Java have static type systems to prevent some errors ML: No such thing as a "treated number as function" error

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Weak Normalization

Weak Normalization. July 05, 2013. Definition. A term M is weakly normalizing if there exists a finite reduction sequence . Syntax. Typing Rules. Proof Idea. Term Abstraction. Reducibility Candidates. Reducibility Candidates. Forward and Backward Closed. Fundamental Lemma.

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Survey: Type Systems for Race Detection and Atomicity

Survey: Type Systems for Race Detection and Atomicity. Feng Zhou, zf@cs 12/3/2003. The Problem and Approaches. Interleaved execution in multi-threaded applications may lead to wrong results Reasons: Race condition: concurrent accesses to a shared variable with at least one write

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Rules for Writing Final Drafts

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