class Crystal::Macros::HashLiteral

Overview

A hash literal.

Defined in:

compiler/crystal/macros.cr

Instance Method Summary

Instance Method Detail

def [](key : ASTNode) : ASTNode #

Similar to Hash#[]?


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def []=(key : ASTNode, value : ASTNode) : ASTNode #

Similar to Hash#[]=


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def clear : HashLiteral #

Similar to Hash#clear


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def double_splat(trailing_string : StringLiteral = nil) : MacroId #

Returns a MacroId with all of this hash elements joined by commas.

If trailing_string is given, it will be appended to the result unless this hash is empty. This lets you splat a hash and optionally write a trailing comma if needed.


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def each(&) : Nil #

Similar to Hash#each


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def empty? : BoolLiteral #

Similar to Hash#empty?


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def keys : ArrayLiteral #

Similar to Hash#keys


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def map : ArrayLiteral #

Similar to Hash#map


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def of_key : ASTNode | Nop #

Returns the type specified at the end of the Hash literal, if any.

This refers to the key type after brackets in {} of String => Int32.


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def of_value : ASTNode | Nop #

Returns the type specified at the end of the Hash literal, if any.

This refers to the value type after brackets in {} of String => Int32.


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def size : NumberLiteral #

Similar to Hash#size


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Similar to Hash#to_a


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def type : Path | Nop #

Returns the type that receives the items of the array.

This refers to the part before brackets in MyHash{'a' => 1, 'b' => 2}


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def values : ArrayLiteral #

Similar to Hash#values


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