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c_ast.py
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#----------------------------------------------------------------- # ** ATTENTION ** # This code was automatically generated from the file: # _c_ast.cfg # # Do not modify it directly. Modify the configuration file and # run the generator again. # ** ** *** ** ** # # pycparser: c_ast.py # # AST Node classes. # # Copyright (C) 2008-2015, Eli Bendersky # License: BSD #----------------------------------------------------------------- import sys class Node(object): __slots__ = () """ Abstract base class for AST nodes. """ def children(self): """ A sequence of all children that are Nodes """ pass def show(self, buf=sys.stdout, offset=0, attrnames=False, nodenames=False, showcoord=False, _my_node_name=None): """ Pretty print the Node and all its attributes and children (recursively) to a buffer. buf: Open IO buffer into which the Node is printed. offset: Initial offset (amount of leading spaces) attrnames: True if you want to see the attribute names in name=value pairs. False to only see the values. nodenames: True if you want to see the actual node names within their parents. showcoord: Do you want the coordinates of each Node to be displayed. """ lead = ' ' * offset if nodenames and _my_node_name is not None: buf.write(lead + self.__class__.__name__+ ' <' + _my_node_name + '>: ') else: buf.write(lead + self.__class__.__name__+ ': ') if self.attr_names: if attrnames: nvlist = [(n, getattr(self,n)) for n in self.attr_names] attrstr = ', '.join('%s=%s' % nv for nv in nvlist) else: vlist = [getattr(self, n) for n in self.attr_names] attrstr = ', '.join('%s' % v for v in vlist) buf.write(attrstr) if showcoord: buf.write(' (at %s)' % self.coord) buf.write('\n') for (child_name, child) in self.children(): child.show( buf, offset=offset + 2, attrnames=attrnames, nodenames=nodenames, showcoord=showcoord, _my_node_name=child_name) class NodeVisitor(object): """ A base NodeVisitor class for visiting c_ast nodes. Subclass it and define your own visit_XXX methods, where XXX is the class name you want to visit with these methods. For example: class ConstantVisitor(NodeVisitor): def __init__(self): self.values = [] def visit_Constant(self, node): self.values.append(node.value) Creates a list of values of all the constant nodes encountered below the given node. To use it: cv = ConstantVisitor() cv.visit(node) Notes: * generic_visit() will be called for AST nodes for which no visit_XXX method was defined. * The children of nodes for which a visit_XXX was defined will not be visited - if you need this, call generic_visit() on the node. You can use: NodeVisitor.generic_visit(self, node) * Modeled after Python's own AST visiting facilities (the ast module of Python 3.0) """ def visit(self, node): """ Visit a node. """ method = 'visit_' + node.__class__.__name__ visitor = getattr(self, method, self.generic_visit) return visitor(node) def generic_visit(self, node): """ Called if no explicit visitor function exists for a node. Implements preorder visiting of the node. """ for c_name, c in node.children(): self.visit(c) class ArrayDecl(Node): __slots__ = ('type', 'dim', 'dim_quals', 'coord', '__weakref__') def __init__(self, type, dim, dim_quals, coord=None): self.type = type self.dim = dim self.dim_quals = dim_quals self.coord = coord def children(self): nodelist = [] if self.type is not None: nodelist.append(("type", self.type)) if self.dim is not None: nodelist.append(("dim", self.dim)) return tuple(nodelist) attr_names = ('dim_quals', ) class ArrayRef(Node): __slots__ = ('name', 'subscript', 'coord', '__weakref__') def __init__(self, name, subscript, coord=None): self.name = name self.subscript = subscript self.coord = coord def children(self): nodelist = [] if self.name is not None: nodelist.append(("name", self.name)) if self.subscript is not None: nodelist.append(("subscript", self.subscript)) return tuple(nodelist) attr_names = () class Assignment(Node): __slots__ = ('op', 'lvalue', 'rvalue', 'coord', '__weakref__') def __init__(self, op, lvalue, rvalue, coord=None): self.op = op self.lvalue = lvalue self.rvalue = rvalue self.coord = coord def children(self): nodelist = [] if self.lvalue is not None: nodelist.append(("lvalue", self.lvalue)) if self.rvalue is not None: nodelist.append(("rvalue", self.rvalue)) return tuple(nodelist) attr_names = ('op', ) class BinaryOp(Node): __slots__ = ('op', 'left', 'right', 'coord', '__weakref__') def __init__(self, op, left, right, coord=None): self.op = op self.left = left self.right = right self.coord = coord def children(self): nodelist = [] if self.left is not None: nodelist.append(("left", self.left)) if self.right is not None: nodelist.append(("right", self.right)) return tuple(nodelist) attr_names = ('op', ) class Break(Node): __slots__ = ('coord', '__weakref__') def __init__(self, coord=None): self.coord = coord def children(self): return () attr_names = () class Case(Node): __slots__ = ('expr', 'stmts', 'coord', '__weakref__') def __init__(self, expr, stmts, coord=None): self.expr = expr self.stmts = stmts self.coord = coord def children(self): nodelist = [] if self.expr is not None: nodelist.append(("expr", self.expr)) for i, child in enumerate(self.stmts or []): nodelist.append(("stmts[%d]" % i, child)) return tuple(nodelist) attr_names = () class Cast(Node): __slots__ = ('to_type', 'expr', 'coord', '__weakref__') def __init__(self, to_type, expr, coord=None): self.to_type = to_type self.expr = expr self.coord = coord def children(self): nodelist = [] if self.to_type is not None: nodelist.append(("to_type", self.to_type)) if self.expr is not None: nodelist.append(("expr", self.expr)) return tuple(nodelist) attr_names = () class Compound(Node): __slots__ = ('block_items', 'coord', '__weakref__') def __init__(self, block_items, coord=None): self.block_items = block_items self.coord = coord def children(self): nodelist = [] for i, child in enumerate(self.block_items or []): nodelist.append(("block_items[%d]" % i, child)) return tuple(nodelist) attr_names = () class CompoundLiteral(Node): __slots__ = ('type', 'init', 'coord', '__weakref__') def __init__(self, type, init, coord=None): self.type = type self.init = init self.coord = coord def children(self): nodelist = [] if self.type is not None: nodelist.append(("type", self.type)) if self.init is not None: nodelist.append(("init", self.init)) return tuple(nodelist) attr_names = () class Constant(Node): __slots__ = ('type', 'value', 'coord', '__weakref__') def __init__(self, type, value, coord=None): self.type = type self.value = value self.coord = coord def children(self): nodelist = [] return tuple(nodelist) attr_names = ('type', 'value', ) class Continue(Node): __slots__ = ('coord', '__weakref__') def __init__(self, coord=None): self.coord = coord def children(self): return () attr_names = () class Decl(Node): __slots__ = ('name', 'quals', 'storage', 'funcspec', 'type', 'init', 'bitsize', 'coord', '__weakref__') def __init__(self, name, quals, storage, funcspec, type, init, bitsize, coord=None): self.name = name self.quals = quals self.storage = storage self.funcspec = funcspec self.type = type self.init = init self.bitsize = bitsize self.coord = coord def children(self): nodelist = [] if self.type is not None: nodelist.append(("type", self.type)) if self.init is not None: nodelist.append(("init", self.init)) if self.bitsize is not None: nodelist.append(("bitsize", self.bitsize)) return tuple(nodelist) attr_names = ('name', 'quals', 'storage', 'funcspec', ) class DeclList(Node): __slots__ = ('decls', 'coord', '__weakref__') def __init__(self, decls, coord=None): self.decls = decls self.coord = coord def children(self): nodelist = [] for i, child in enumerate(self.decls or []): nodelist.append(("decls[%d]" % i, child)) return tuple(nodelist) attr_names = () class Default(Node): __slots__ = ('stmts', 'coord', '__weakref__') def __init__(self, stmts, coord=None): self.stmts = stmts self.coord = coord def children(self): nodelist = [] for i, child in enumerate(self.stmts or []): nodelist.append(("stmts[%d]" % i, child)) return tuple(nodelist) attr_names = () class DoWhile(Node): __slots__ = ('cond', 'stmt', 'coord', '__weakref__') def __init__(self, cond, stmt, coord=None): self.cond = cond self.stmt = stmt self.coord = coord def children(self): nodelist = [] if self.cond is not None: nodelist.append(("cond", self.cond)) if self.stmt is not None: nodelist.append(("stmt", self.stmt)) return tuple(nodelist) attr_names = () class EllipsisParam(Node): __slots__ = ('coord', '__weakref__') def __init__(self, coord=None): self.coord = coord def children(self): return () attr_names = () class EmptyStatement(Node): __slots__ = ('coord', '__weakref__') def __init__(self, coord=None): self.coord = coord def children(self): return () attr_names = () class Enum(Node): __slots__ = ('name', 'values', 'coord', '__weakref__') def __init__(self, name, values, coord=None): self.name = name self.values = values self.coord = coord def children(self): nodelist = [] if self.values is not None: nodelist.append(("values", self.values)) return tuple(nodelist) attr_names = ('name', ) class Enumerator(Node): __slots__ = ('name', 'value', 'coord', '__weakref__') def __init__(self, name, value, coord=None): self.name = name self.value = value self.coord = coord def children(self): nodelist = [] if self.value is not None: nodelist.append(("value", self.value)) return tuple(nodelist) attr_names = ('name', ) class EnumeratorList(Node): __slots__ = ('enumerators', 'coord', '__weakref__') def __init__(self, enumerators, coord=None): self.enumerators = enumerators self.coord = coord def children(self): nodelist = [] for i, child in enumerate(self.enumerators or []): nodelist.append(("enumerators[%d]" % i, child)) return tuple(nodelist) attr_names = () class ExprList(Node): __slots__ = ('exprs', 'coord', '__weakref__') def __init__(self, exprs, coord=None): self.exprs = exprs self.coord = coord def children(self): nodelist = [] for i, child in enumerate(self.exprs or []): nodelist.append(("exprs[%d]" % i, child)) return tuple(nodelist) attr_names = () class FileAST(Node): __slots__ = ('ext', 'coord', '__weakref__') def __init__(self, ext, coord=None): self.ext = ext self.coord = coord def children(self): nodelist = [] for i, child in enumerate(self.ext or []): nodelist.append(("ext[%d]" % i, child)) return tuple(nodelist) attr_names = () class For(Node): __slots__ = ('init', 'cond', 'next', 'stmt', 'coord', '__weakref__') def __init__(self, init, cond, next, stmt, coord=None): self.init = init self.cond = cond self.next = next self.stmt = stmt self.coord = coord def children(self): nodelist = [] if self.init is not None: nodelist.append(("init", self.init)) if self.cond is not None: nodelist.append(("cond", self.cond)) if self.next is not None: nodelist.append(("next", self.next)) if self.stmt is not None: nodelist.append(("stmt", self.stmt)) return tuple(nodelist) attr_names = () class FuncCall(Node): __slots__ = ('name', 'args', 'coord', '__weakref__') def __init__(self, name, args, coord=None): self.name = name self.args = args self.coord = coord def children(self): nodelist = [] if self.name is not None: nodelist.append(("name", self.name)) if self.args is not None: nodelist.append(("args", self.args)) return tuple(nodelist) attr_names = () class FuncDecl(Node): __slots__ = ('args', 'type', 'coord', '__weakref__') def __init__(self, args, type, coord=None): self.args = args self.type = type self.coord = coord def children(self): nodelist = [] if self.args is not None: nodelist.append(("args", self.args)) if self.type is not None: nodelist.append(("type", self.type)) return tuple(nodelist) attr_names = () class FuncDef(Node): __slots__ = ('decl', 'param_decls', 'body', 'coord', '__weakref__') def __init__(self, decl, param_decls, body, coord=None): self.decl = decl self.param_decls = param_decls self.body = body self.coord = coord def children(self): nodelist = [] if self.decl is not None: nodelist.append(("decl", self.decl)) if self.body is not None: nodelist.append(("body", self.body)) for i, child in enumerate(self.param_decls or []): nodelist.append(("param_decls[%d]" % i, child)) return tuple(nodelist) attr_names = () class Goto(Node): __slots__ = ('name', 'coord', '__weakref__') def __init__(self, name, coord=None): self.name = name self.coord = coord def children(self): nodelist = [] return tuple(nodelist) attr_names = ('name', ) class ID(Node): __slots__ = ('name', 'coord', '__weakref__') def __init__(self, name, coord=None): self.name = name self.coord = coord def children(self): nodelist = [] return tuple(nodelist) attr_names = ('name', ) class IdentifierType(Node): __slots__ = ('names', 'coord', '__weakref__') def __init__(self, names, coord=None): self.names = names self.coord = coord def children(self): nodelist = [] return tuple(nodelist) attr_names = ('names', ) class If(Node): __slots__ = ('cond', 'iftrue', 'iffalse', 'coord', '__weakref__') def __init__(self, cond, iftrue, iffalse, coord=None): self.cond = cond self.iftrue = iftrue self.iffalse = iffalse self.coord = coord def children(self): nodelist = [] if self.cond is not None: nodelist.append(("cond", self.cond)) if self.iftrue is not None: nodelist.append(("iftrue", self.iftrue)) if self.iffalse is not None: nodelist.append(("iffalse", self.iffalse)) return tuple(nodelist) attr_names = () class InitList(Node): __slots__ = ('exprs', 'coord', '__weakref__') def __init__(self, exprs, coord=None): self.exprs = exprs self.coord = coord def children(self): nodelist = [] for i, child in enumerate(self.exprs or []): nodelist.append(("exprs[%d]" % i, child)) return tuple(nodelist) attr_names = () class Label(Node): __slots__ = ('name', 'stmt', 'coord', '__weakref__') def __init__(self, name, stmt, coord=None): self.name = name self.stmt = stmt self.coord = coord def children(self): nodelist = [] if self.stmt is not None: nodelist.append(("stmt", self.stmt)) return tuple(nodelist) attr_names = ('name', ) class NamedInitializer(Node): __slots__ = ('name', 'expr', 'coord', '__weakref__') def __init__(self, name, expr, coord=None): self.name = name self.expr = expr self.coord = coord def children(self): nodelist = [] if self.expr is not None: nodelist.append(("expr", self.expr)) for i, child in enumerate(self.name or []): nodelist.append(("name[%d]" % i, child)) return tuple(nodelist) attr_names = () class ParamList(Node): __slots__ = ('params', 'coord', '__weakref__') def __init__(self, params, coord=None): self.params = params self.coord = coord def children(self): nodelist = [] for i, child in enumerate(self.params or []): nodelist.append(("params[%d]" % i, child)) return tuple(nodelist) attr_names = () class PtrDecl(Node): __slots__ = ('quals', 'type', 'coord', '__weakref__') def __init__(self, quals, type, coord=None): self.quals = quals self.type = type self.coord = coord def children(self): nodelist = [] if self.type is not None: nodelist.append(("type", self.type)) return tuple(nodelist) attr_names = ('quals', ) class Return(Node): __slots__ = ('expr', 'coord', '__weakref__') def __init__(self, expr, coord=None): self.expr = expr self.coord = coord def children(self): nodelist = [] if self.expr is not None: nodelist.append(("expr", self.expr)) return tuple(nodelist) attr_names = () class Struct(Node): __slots__ = ('name', 'decls', 'coord', '__weakref__') def __init__(self, name, decls, coord=None): self.name = name self.decls = decls self.coord = coord def children(self): nodelist = [] for i, child in enumerate(self.decls or []): nodelist.append(("decls[%d]" % i, child)) return tuple(nodelist) attr_names = ('name', ) class StructRef(Node): __slots__ = ('name', 'type', 'field', 'coord', '__weakref__') def __init__(self, name, type, field, coord=None): self.name = name self.type = type self.field = field self.coord = coord def children(self): nodelist = [] if self.name is not None: nodelist.append(("name", self.name)) if self.field is not None: nodelist.append(("field", self.field)) return tuple(nodelist) attr_names = ('type', ) class Switch(Node): __slots__ = ('cond', 'stmt', 'coord', '__weakref__') def __init__(self, cond, stmt, coord=None): self.cond = cond self.stmt = stmt self.coord = coord def children(self): nodelist = [] if self.cond is not None: nodelist.append(("cond", self.cond)) if self.stmt is not None: nodelist.append(("stmt", self.stmt)) return tuple(nodelist) attr_names = () class TernaryOp(Node): __slots__ = ('cond', 'iftrue', 'iffalse', 'coord', '__weakref__') def __init__(self, cond, iftrue, iffalse, coord=None): self.cond = cond self.iftrue = iftrue self.iffalse = iffalse self.coord = coord def children(self): nodelist = [] if self.cond is not None: nodelist.append(("cond", self.cond)) if self.iftrue is not None: nodelist.append(("iftrue", self.iftrue)) if self.iffalse is not None: nodelist.append(("iffalse", self.iffalse)) return tuple(nodelist) attr_names = () class TypeDecl(Node): __slots__ = ('declname', 'quals', 'type', 'coord', '__weakref__') def __init__(self, declname, quals, type, coord=None): self.declname = declname self.quals = quals self.type = type self.coord = coord def children(self): nodelist = [] if self.type is not None: nodelist.append(("type", self.type)) return tuple(nodelist) attr_names = ('declname', 'quals', ) class Typedef(Node): __slots__ = ('name', 'quals', 'storage', 'type', 'coord', '__weakref__') def __init__(self, name, quals, storage, type, coord=None): self.name = name self.quals = quals self.storage = storage self.type = type self.coord = coord def children(self): nodelist = [] if self.type is not None: nodelist.append(("type", self.type)) return tuple(nodelist) attr_names = ('name', 'quals', 'storage', ) class Typename(Node): __slots__ = ('name', 'quals', 'type', 'coord', '__weakref__') def __init__(self, name, quals, type, coord=None): self.name = name self.quals = quals self.type = type self.coord = coord def children(self): nodelist = [] if self.type is not None: nodelist.append(("type", self.type)) return tuple(nodelist) attr_names = ('name', 'quals', ) class UnaryOp(Node): __slots__ = ('op', 'expr', 'coord', '__weakref__') def __init__(self, op, expr, coord=None): self.op = op self.expr = expr self.coord = coord def children(self): nodelist = [] if self.expr is not None: nodelist.append(("expr", self.expr)) return tuple(nodelist) attr_names = ('op', ) class Union(Node): __slots__ = ('name', 'decls', 'coord', '__weakref__') def __init__(self, name, decls, coord=None): self.name = name self.decls = decls self.coord = coord def children(self): nodelist = [] for i, child in enumerate(self.decls or []): nodelist.append(("decls[%d]" % i, child)) return tuple(nodelist) attr_names = ('name', ) class While(Node): __slots__ = ('cond', 'stmt', 'coord', '__weakref__') def __init__(self, cond, stmt, coord=None): self.cond = cond self.stmt = stmt self.coord = coord def children(self): nodelist = [] if self.cond is not None: nodelist.append(("cond", self.cond)) if self.stmt is not None: nodelist.append(("stmt", self.stmt)) return tuple(nodelist) attr_names = ()