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================================================================================
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unary operator -
================================================================================
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foo = -3
--------------------------------------------------------------------------------
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(config_file
(body
(attribute
(identifier)
(expression
(operation
(unary_operation
(literal_value
(numeric_lit))))))))
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================================================================================
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unary operator !
================================================================================
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foo = !true
--------------------------------------------------------------------------------
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(config_file
(body
(attribute
(identifier)
(expression
(operation
(unary_operation
(literal_value
(bool_lit))))))))
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================================================================================
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binary operators +
================================================================================
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foo = 1+2
--------------------------------------------------------------------------------
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(config_file
(body
(attribute
(identifier)
(expression
(operation
(binary_operation
(literal_value
(numeric_lit))
(literal_value
(numeric_lit))))))))
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================================================================================
precedence in binary operators
================================================================================
foo = a != b && c == d
--------------------------------------------------------------------------------
(config_file
(body
(attribute
(identifier)
(expression
(operation
(binary_operation
(operation
(binary_operation
(variable_expr
(identifier))
(variable_expr
(identifier))))
(operation
(binary_operation
(variable_expr
(identifier))
(variable_expr
(identifier))))))))))
================================================================================
precedence in binary operators 2
================================================================================
foo = a.foo != "" && b.foo == "" ? 1 : 0
--------------------------------------------------------------------------------
(config_file
(body
(attribute
(identifier)
(expression
(conditional
(expression
(operation
(binary_operation
(operation
(binary_operation
(variable_expr
(identifier))
(get_attr
(identifier))
(literal_value
(string_lit
(quoted_template_start)
(quoted_template_end)))))
(operation
(binary_operation
(variable_expr
(identifier))
(get_attr
(identifier))
(literal_value
(string_lit
(quoted_template_start)
(quoted_template_end))))))))
(expression
(literal_value
(numeric_lit)))
(expression
(literal_value
(numeric_lit))))))))