Class: Faust2Ruby::IRBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/faust2ruby/ir_builder.rb

Overview

Converts Faust AST nodes to Ruby2Faust IR nodes. This enables semantic analysis and Ruby code generation.

Constant Summary collapse

Node = 
Ruby2Faust::Node
NodeType = 
Ruby2Faust::NodeType

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ IRBuilder

Returns a new instance of IRBuilder.



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# File 'lib/faust2ruby/ir_builder.rb', line 14

def initialize
  @definitions = {}  # name => AST::Definition
  @errors = []
end

Instance Attribute Details

#errors ⇒ Object (readonly)

Returns the value of attribute errors.



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# File 'lib/faust2ruby/ir_builder.rb', line 19

def errors
  @errors
end

Instance Method Details

#build(program) ⇒ Object

Build IR from a parsed program Returns a hash with :process (the main process IR), :imports, :declares



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# File 'lib/faust2ruby/ir_builder.rb', line 23

def build(program)
  # First pass: collect all definitions
  program.statements.each do |stmt|
    case stmt
    when AST::Definition
      @definitions[stmt.name] = stmt
    end
  end

  # Find process definition
  process_def = @definitions["process"]
  unless process_def
    @errors << "No 'process' definition found"
    return nil
  end

  # Build IR for process
  process_ir = build_expression(process_def.expression)

  # Collect imports and declares
  imports = program.statements.select { |s| s.is_a?(AST::Import) }.map(&:path)
  declares = program.statements.select { |s| s.is_a?(AST::Declare) }.to_h { |d| [d.key, d.value] }

  {
    process: process_ir,
    imports: imports,
    declares: declares,
    definitions: @definitions.reject { |k, _| k == "process" }
  }
end