Class: Idl::EnumElementSizeAst

Inherits:

AstNode

• Object
• AstNode
• Idl::EnumElementSizeAst

Includes:

Rvalue

Defined in:

lib/idlc/ast.rb,
lib/idlc/passes/gen_adoc.rb

Overview

represents the builtin that returns the bitwidth of an element in an enum class

$enum_element_size(PrivilegeMode) #=> 3

Constant Summary

Constants inherited from AstNode

AstNode::Bits1Type, AstNode::Bits32Type, AstNode::Bits64Type, AstNode::BoolType, AstNode::ConstBoolType, AstNode::PossiblyUnknownBits1Type, AstNode::PossiblyUnknownBits32Type, AstNode::PossiblyUnknownBits64Type, AstNode::ReachableFunctionCacheType, AstNode::StringType, AstNode::VoidType

Instance Attribute Summary

Attributes inherited from AstNode

#children, #input, #interval, #parent

Class Method Summary

• .from_h(yaml, source_mapper) ⇒ Object

Instance Method Summary

• #const_eval?(symtab) ⇒ Boolean
• #enum_class ⇒ Object
• #gen_adoc(indent, indent_spaces: 2) ⇒ Object
• #initialize(input, interval, enum_class_name) ⇒ EnumElementSizeAst constructor

  A new instance of EnumElementSizeAst.

• #to_h ⇒ Object
• #to_idl ⇒ Object
• #type(symtab) ⇒ Object
• #type_check(symtab, strict:) ⇒ Object
• #value(symtab) ⇒ Object

Methods included from Rvalue

#max_value, #min_value, #truncate, #values

Methods inherited from AstNode

#always_terminates?, #declaration?, #executable?, extract_base_var_name, #find_ancestor, #find_dst_registers, #find_referenced_csrs, #find_src_registers, #freeze_tree, #gen_option_adoc, #input_file, input_from_source_yaml, #inspect, #internal_error, interval_from_source_yaml, #lineno, #lines_around, #nullify_assignments, #pass_find_return_values, #path, #print_ast, #prune, #reachable_exceptions, #reachable_functions, #set_input_file, #set_input_file_unless_already_set, #source_line_file_offsets, #source_starting_offset, #source_yaml, #starting_line, #text_value, #truncation_warn, #type_error, #unindent, value_else, #value_else, value_error, #value_error, value_try, #value_try, write_back_nested

Constructor Details

#initialize(input, interval, enum_class_name) ⇒ EnumElementSizeAst

Returns a new instance of EnumElementSizeAst.

# File 'lib/idlc/ast.rb', line 1703

def initialize(input, interval, enum_class_name)
  user_type_name = enum_class_name.is_a?(UserTypeNameAst) ? enum_class_name : UserTypeNameAst.new(enum_class_name.input, enum_class_name.interval, enum_class_name.name)
  super(input, interval, [user_type_name])
end

Class Method Details

.from_h(yaml, source_mapper) ⇒ Object

# File 'lib/idlc/ast.rb', line 1731

def self.from_h(yaml, source_mapper)
  raise "Bad YAML" unless yaml.key?("kind") && yaml.fetch("kind") == "enum_element_size_funcall"

  input = input_from_source_yaml(yaml.fetch("source"), source_mapper)
  interval = interval_from_source_yaml(yaml.fetch("source"))
  EnumElementSizeAst.new(
    input, interval,
    T.cast(AstNode.from_h(yaml.fetch("enum_class_name"), source_mapper), UserTypeNameAst)
  )
end

Instance Method Details

#const_eval?(symtab) ⇒ Boolean

Returns:

• (Boolean)

# File 'lib/idlc/ast.rb', line 1700

def const_eval?(symtab) = true

#enum_class ⇒ Object

# File 'lib/idlc/ast.rb', line 1697

def enum_class = children[0]

#gen_adoc(indent, indent_spaces: 2) ⇒ Object

# File 'lib/idlc/passes/gen_adoc.rb', line 132

def gen_adoc(indent, indent_spaces: 2)
  "#{' ' * indent}$enum_element_size(#{enum_class.gen_adoc(0, indent_spaces:)})"
end

#to_h ⇒ Object

# File 'lib/idlc/ast.rb', line 1724

def to_h = {
  "kind" => "enum_element_size_funcall",
  "enum_class_name" => enum_class.to_h,
  "source" => source_yaml
}

#to_idl ⇒ Object

# File 'lib/idlc/ast.rb', line 1721

def to_idl = "$enum_element_size(#{enum_class.to_idl})"

#type(symtab) ⇒ Object

# File 'lib/idlc/ast.rb', line 1712

def type(symtab)
  Type.new(:bits, width: enum_class.type(symtab).width, qualifiers: [:const, :known])
end

#type_check(symtab, strict:) ⇒ Object

# File 'lib/idlc/ast.rb', line 1708

def type_check(symtab, strict:)
  enum_class.type_check(symtab, strict:)
end

#value(symtab) ⇒ Object

# File 'lib/idlc/ast.rb', line 1716

def value(symtab)
  enum_class.type(symtab).width
end