From b0339050273dfe57b9cbadd9f60b8df766888609 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= Date: Thu, 17 Feb 2011 13:48:57 +0100 Subject: beam_dict: Fix typo in comment --- lib/compiler/src/beam_dict.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/compiler/src/beam_dict.erl b/lib/compiler/src/beam_dict.erl index a503fcab38..7f178ba547 100644 --- a/lib/compiler/src/beam_dict.erl +++ b/lib/compiler/src/beam_dict.erl @@ -139,7 +139,7 @@ lambda(Lbl, Index, OldUniq, NumFree, #asm{lambdas=Lambdas0}=Dict) -> Lambdas = [{Lbl,{OldIndex,Lbl,Index,NumFree,OldUniq}}|Lambdas0], {OldIndex,Dict#asm{lambdas=Lambdas}}. -%% Returns the index for a literal (adding it to the atom table if necessary). +%% Returns the index for a literal (adding it to the literal table if necessary). %% literal(Literal, Dict) -> {Index,Dict'} -spec literal(term(), bdict()) -> {non_neg_integer(), bdict()}. -- cgit v1.2.3 From dc3f88bc9b1e6ecacc2f441a0a23b51693a383c7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= Date: Thu, 17 Feb 2011 15:14:14 +0100 Subject: beam_dict: Eliminate the redundant next_atom record element It is not needed because it can be trivially calculated using gb_trees:size/1. --- lib/compiler/src/beam_dict.erl | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/lib/compiler/src/beam_dict.erl b/lib/compiler/src/beam_dict.erl index 7f178ba547..c50ed28aa9 100644 --- a/lib/compiler/src/beam_dict.erl +++ b/lib/compiler/src/beam_dict.erl @@ -36,7 +36,6 @@ strings = <<>> :: binary(), %String pool lambdas = [], %[{...}] literals = dict:new() :: dict(), %Format: {Literal,Number} - next_atom = 1 :: pos_integer(), next_import = 0 :: non_neg_integer(), string_offset = 0 :: non_neg_integer(), next_literal = 0 :: non_neg_integer(), @@ -66,13 +65,14 @@ highest_opcode(#asm{highest_opcode=Op}) -> Op. %% atom(Atom, Dict) -> {Index,Dict'} -spec atom(atom(), bdict()) -> {pos_integer(), bdict()}. -atom(Atom, #asm{atoms=Atoms0,next_atom=NextIndex}=Dict) when is_atom(Atom) -> +atom(Atom, #asm{atoms=Atoms0}=Dict) when is_atom(Atom) -> case gb_trees:lookup(Atom, Atoms0) of {value,Index} -> {Index,Dict}; none -> + NextIndex = gb_trees:size(Atoms0) + 1, Atoms = gb_trees:insert(Atom, NextIndex, Atoms0), - {NextIndex,Dict#asm{atoms=Atoms,next_atom=NextIndex+1}} + {NextIndex,Dict#asm{atoms=Atoms}} end. %% Remembers an exported function. @@ -156,14 +156,15 @@ literal(Lit, #asm{literals=Tab0,next_literal=NextIndex}=Dict) -> %% atom_table(Dict) -> {LastIndex,[Length,AtomString...]} -spec atom_table(bdict()) -> {non_neg_integer(), [[non_neg_integer(),...]]}. -atom_table(#asm{atoms=Atoms,next_atom=NumAtoms}) -> +atom_table(#asm{atoms=Atoms}) -> + NumAtoms = gb_trees:size(Atoms), Sorted = lists:keysort(2, gb_trees:to_list(Atoms)), Fun = fun({A,_}) -> L = atom_to_list(A), [length(L)|L] end, AtomTab = lists:map(Fun, Sorted), - {NumAtoms-1,AtomTab}. + {NumAtoms,AtomTab}. %% Returns the table of local functions. %% local_table(Dict) -> {NumLocals, [{Function, Arity, Label}...]} -- cgit v1.2.3