RubyVM::AbstractSyntaxTree::Node
instances are created by parse methods in RubyVM::AbstractSyntaxTree
.
static VALUE rb_ast_node_children(VALUE self) { struct ASTNodeData *data; TypedData_Get_Struct(self, struct ASTNodeData, &rb_node_type, data); return node_children(data->ast, data->node); }
Returns AST nodes under this one. Each kind of node has different children, depending on what kind of node it is.
The returned array may contain other nodes or nil
.
static VALUE rb_ast_node_inspect(VALUE self) { VALUE str; VALUE cname; struct ASTNodeData *data; TypedData_Get_Struct(self, struct ASTNodeData, &rb_node_type, data); cname = rb_class_path(rb_obj_class(self)); str = rb_str_new2("#<"); rb_str_append(str, cname); rb_str_catf(str, ":%s@%d:%d-%d:%d>", node_type_to_str(data->node), nd_first_lineno(data->node), nd_first_column(data->node), nd_last_lineno(data->node), nd_last_column(data->node)); return str; }
Returns debugging information about this node as a string.
# File lib/pp.rb, line 531 def pretty_print(q) q.group(1, "(#{type}@#{first_lineno}:#{first_column}-#{last_lineno}:#{last_column}", ")") { case type when :SCOPE pretty_print_children(q, %w"tbl args body") when :ARGS pretty_print_children(q, %w[pre_num pre_init opt first_post post_num post_init rest kw kwrest block]) when :DEFN pretty_print_children(q, %w[mid body]) else pretty_print_children(q) end } end
static VALUE rb_ast_node_type(VALUE self) { struct ASTNodeData *data; TypedData_Get_Struct(self, struct ASTNodeData, &rb_node_type, data); return rb_sym_intern_ascii_cstr(node_type_to_str(data->node)); }
Returns the type of this node as a symbol.
root = RubyVM::AbstractSyntaxTree.parse("x = 1 + 2") root.type # => :SCOPE call = root.children[2] call.type # => :OPCALL
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Licensed under the Ruby License.
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Licensed under their own licenses.