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RBS runtime type checker is one of the Ruby Google Summer of Code projects, which uses RBS type signatures to implement runtime type checking. type-profiler is an exploratory project to generate RBS files from Ruby source code based on a program analysis technique called Abstract Interpretation.
The proper way to determine the "type" of an object, which is a wobbly term in the Ruby world, is to call object. class . Since classes can inherit from other classes, if you want to determine if an object is "of a particular type" you might call object.
Ruby is not only a dynamically but also strongly typed language, which means that it allows for a variable to change its type during runtime.
Ruby is a dynamically typed language, which means the interpreter tries to infer the data type of variables and object properties at runtime.
Since there is no type in ruby, how do Ruby programmers make sure a function receives correct arguments? Right now, I am repeating if object.kind_of/instance_of statements to check and raise runtime errors everywhere, which is ugly. There must be a better way of doing this.
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