Advanced types¶
Here are some advanced types used to build abstract syntax tree.
- variable:
This module contains all about variables in pseudocode.
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class
pseudo.type.variable.
Assignment
(target: pseudo.type.variable.Variable, value: pseudo.type.base.Value, object_class=<class 'pseudo.runtime.MemoryObject'>, line: str = '')¶ Node for representing assignments.
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- target
Target variable.
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- value
Value to assign.
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class
pseudo.type.variable.
Increment
(key: str, line: str = '')¶ Representing incrementation of iterator.
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- key
str, Key of iterator.
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- line
str, Representation of operation in pseudocode.
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-
class
pseudo.type.variable.
Variable
(value, indices=[])¶ Node for representing variables.
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- value
Name of the variable.
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- indices
List of indices.
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class
- conditional:
This module contains everything about conditional statements in pseudocode.
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class
pseudo.type.conditional.
Condition
(condition, true, false=None, line='')¶ Node for representing conditional expressions (if).
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- condition
Condition to check
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- true
List to evaluate if condition is true
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- false
List to evaluate if condition is false (optional)
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- line
String of pseudocode representation
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-
pseudo.type.conditional.
read_if
(lexer, indent_level: int = 0) → pseudo.type.conditional.Condition¶ Read if statement from stream. This function expect stream cursor be after if keyword:
'if condition then' ^
Parameters: - lexer (-) – Lexer object used to apply lexing rules.
- indent_level (-) – int, Indicates level of indentation passed to children.
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class
- operation:
This module contains classes for representing operations in AST.
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class
pseudo.type.operation.
Operation
(operator, left, right)¶ Operation node.
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class
pseudo.type.operation.
Operator
(value, line='')¶ Opartor class for representing mathematical operator.
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pseudo.type.operation.
is_operator
(c) → bool¶ Checks if given char is an allowed operator.
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pseudo.type.operation.
read_operator
(stream)¶ Return operator from input stream.
Parameters: stream (-) – Input stream
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class