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CGeneratorz� Uses the same visitor pattern as c_ast.NodeVisitor, but modified to
return a value from each visit method, using string accumulation in
generic_visit.
Fc C s d| _ || _dS )z� Constructs C-code generator
reduce_parentheses:
if True, eliminates needless parentheses on binary operators
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zCGenerator.__init__c C s
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d| �|j� S | �|j�}|j dkr d| S |j dkr%d| S d|j |f S )N�sizeofz
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isinstancer �BinaryOp�precedence_mapr? ��d�r$ r r r �<lambda>k �
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visit_Decl� s
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r �
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z!CGenerator.visit_NamedInitializerc C s
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zq Generates code for structs, unions, and enums. name should be
'struct', 'union', or 'enum'.
)r� r� r� Nr r r� rD r� ro )r} �_generate_struct_union_body�values� enumerators�_generate_enum_bodyr( r r )r r$ r( �members�
body_functionrx r r r r� f s z&CGenerator._generate_struct_union_enumc s d� � fdd�|D ��S )Nr c 3 r� r r� r{ r
r r r r� z9CGenerator._generate_struct_union_body.<locals>.<genexpr>�r �r r� r r
r r� ~ s z&CGenerator._generate_struct_union_bodyc s$ d� � fdd�|D ��d d� d S )Nr c 3 r� r r )r r" r
r r r � r� z1CGenerator._generate_enum_body.<locals>.<genexpr>���r� r� r� r r
r r� � s $z CGenerator._generate_enum_bodyc C s� t |�}|r
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v rA|| �|� d S |tjfv rL| �|�S |tjfv rY|| �|� S || �|� d S )z� Generation from a statement node. This method exists as a wrapper
for individual visit_* methods to handle different treatment of
some statements in this context.
rD r� r� )r5 r r r �Declrf �Cast�UnaryOprX � TernaryOp�FuncCall�ArrayRef� StructRef�Constantr� �Typedefrq r �Compound�If)r r$ r� �typr� r r r r� � s �
zCGenerator._generate_stmtc C sf d}|j r
d�|j �d }|jr|d�|j�d 7 }|jr)|| �|jd �d 7 }|| �|j�7 }|S )z& Generation from a Decl node.
r r r )�funcspecr r� �alignr r� r5 r r r r rt � s zCGenerator._generate_declTc C s� t |�}|tjkr�d}|jr|d�|j�d 7 }|| �|j �7 }|jr(|r(|jnd}t|�D ]\}}t|tj �rh|dkrLt||d tj
�rLd| d }|d7 }|j r]|d�|j �d 7 }|| �|j �d 7 }q.t|tj
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| }q.|r�|d| 7 }|S |tjkr�| �|j �S |tjkr�| j|j |d �S |tjkr�d�|j�d S |tj tj
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fv r�| j|j ||g |d �S | �|�S ) z� Recursive generation from a type node. n is the type node.
modifiers collects the PtrDecl, ArrayDecl and FuncDecl modifiers
encountered on the way down to a TypeDecl, to allow proper
generation from it.
r r r r r9 r: r. r/ z* %s%srQ r� )r5 r �TypeDecl�qualsr r �declname� enumeraterW � ArrayDecl�PtrDecl� dim_quals�dim�FuncDeclr; r� rt �Typenamer� �IdentifierTyperk ) r r$ � modifiersr� r� rx �nstr�i�modifierr r r r� � sT
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zCGenerator._generate_typec C s" | � |�}||�rd| d S |S )z� Visits 'n' and returns its string representation, parenthesized
if the condition function applied to the node returns True.
r9 r: )rr )r r$ � conditionrx r r r r` � s
zCGenerator._parenthesize_ifc s � � |� fdd��S )z. Common use case for _parenthesize_if
c s � � | � S r )rV rZ r
r r r] � rg z8CGenerator._parenthesize_unless_simple.<locals>.<lambda>)r` r# r r
r r0 � s z&CGenerator._parenthesize_unless_simplec C s t |tjtjtjtjtjf�S )z~ Returns True for nodes that are "simple" - i.e. nodes that always
have higher precedence than operators.
)rW r r� r� r� r� r� r# r r r rV � s �zCGenerator._is_simple_nodeN)F)Cr �
__module__� __qualname__�__doc__r
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