Expression

An expression is a combination of one or more constants, variables, operators and function calls.

RIDE interprets the expression and calculates its result.

Expression result

An expression result is a value, which is obtained by the fold of the syntactic tree of the expression.

Expression type

An expression type is a data type of the expression result.

Examples

The expression that consists of a single constant.

7

The expression that consists of a single variable.

x

The expression that consists of the constant 7, operators + and *, variable x and the size function call.

7 + x * size("apple")

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