Class: YTLJit::VM::TypeInferenceContext
- Defined in:
- lib/ytljit/vm_codegen.rb
Instance Attribute Summary collapse
-
#convergent ⇒ Object
Returns the value of attribute convergent.
-
#current_method_signature_node ⇒ Object
readonly
Returns the value of attribute current_method_signature_node.
-
#top_node ⇒ Object
readonly
Returns the value of attribute top_node.
-
#visited_top_node ⇒ Object
Returns the value of attribute visited_top_node.
Instance Method Summary collapse
-
#initialize(tnode) ⇒ TypeInferenceContext
constructor
A new instance of TypeInferenceContext.
- #pop_signature ⇒ Object
- #push_signature(signode, method) ⇒ Object
- #to_signature(offset = -1,, cache = {}) ⇒ Object
- #to_signature_aux(cursignode, offset, cache) ⇒ Object
- #to_signature_aux2(mt, args, cursig, offset, cache) ⇒ Object
- #to_signature_aux3(cursignode, offset, cache) ⇒ Object
Constructor Details
#initialize(tnode) ⇒ TypeInferenceContext
Returns a new instance of TypeInferenceContext.
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# File 'lib/ytljit/vm_codegen.rb', line 109 def initialize(tnode) @top_node = tnode @current_method_signature_node = [[]] @current_method = [tnode] @convergent = false @visited_top_node = {} end |
Instance Attribute Details
#convergent ⇒ Object
Returns the value of attribute convergent.
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# File 'lib/ytljit/vm_codegen.rb', line 228 def convergent @convergent end |
#current_method_signature_node ⇒ Object (readonly)
Returns the value of attribute current_method_signature_node.
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# File 'lib/ytljit/vm_codegen.rb', line 227 def current_method_signature_node @current_method_signature_node end |
#top_node ⇒ Object (readonly)
Returns the value of attribute top_node.
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# File 'lib/ytljit/vm_codegen.rb', line 226 def top_node @top_node end |
#visited_top_node ⇒ Object
Returns the value of attribute visited_top_node.
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# File 'lib/ytljit/vm_codegen.rb', line 229 def visited_top_node @visited_top_node end |
Instance Method Details
#pop_signature ⇒ Object
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# File 'lib/ytljit/vm_codegen.rb', line 221 def pop_signature @current_method.pop @current_method_signature_node.pop end |
#push_signature(signode, method) ⇒ Object
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# File 'lib/ytljit/vm_codegen.rb', line 216 def push_signature(signode, method) @current_method_signature_node.push signode @current_method.push method end |
#to_signature(offset = -1,, cache = {}) ⇒ Object
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# File 'lib/ytljit/vm_codegen.rb', line 117 def to_signature(offset = -1, cache = {}) if offset.is_a?(Node::TopNode) then i = -1 while @current_method[i] and @current_method[i] != offset i = i - 1 end if @current_method[i] == offset then offset = i else # This is legal this TopNode has only one signature sigc = offset.signature_cache if sigc.size == 1 then return sigc[0] else raise "I can't type inference..." end end end cursignode = @current_method_signature_node[offset] curmethod = @current_method[offset] sigc = curmethod.signature_cache if sigc.size == 1 then return sigc[0] end if rsig = cache[cursignode] then return rsig end if curmethod.is_a?(Node::ClassTopNode) then rsig = to_signature_aux(cursignode, offset, cache) cache[cursignode] = rsig rsig elsif curmethod.is_a?(Node::TopNode) then prevsig = to_signature(offset - 1, cache) rsig = to_signature_aux2(curmethod, cursignode, prevsig, offset, cache) cache[cursignode] = rsig rsig else raise "Maybe bug" =begin prevsig = to_signature(offset - 1, cache) mt, slf = curmethod.get_send_method_node(prevsig) rsig = to_signature_aux2(mt, cursignode, prevsig, offset, cache) cache[cursignode] = rsig return rsig =end end end |
#to_signature_aux(cursignode, offset, cache) ⇒ Object
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# File 'lib/ytljit/vm_codegen.rb', line 173 def to_signature_aux(cursignode, offset, cache) res = cursignode.map { |enode| enode.decide_type_once(to_signature(offset - 1, cache)) } res end |
#to_signature_aux2(mt, args, cursig, offset, cache) ⇒ Object
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# File 'lib/ytljit/vm_codegen.rb', line 181 def to_signature_aux2(mt, args, cursig, offset, cache) res = [] args.each do |ele| ele.decide_type_once(cursig) res.push ele.type end if mt and (ynode = mt.yield_node[0]) then yargs = ynode.arguments push_signature(args, mt) ysig = to_signature_aux3(yargs, -1, cache) args[1].type = nil args[1].decide_type_once(ysig) res[1] = args[1].type pop_signature end res end |
#to_signature_aux3(cursignode, offset, cache) ⇒ Object
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# File 'lib/ytljit/vm_codegen.rb', line 201 def to_signature_aux3(cursignode, offset, cache) if res = cache[cursignode] then return res end res = cursignode.map { |enode| cursignode = @current_method_signature_node[offset] sig = to_signature_aux3(cursignode, offset - 1, cache) enode.decide_type_once(sig) } cache[cursignode] = res res end |