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move IdDict, IdSet to their own files, rename table.c to iddict.c (#3…
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,160 @@ | ||
| """ | ||
| IdDict([itr]) | ||
| `IdDict{K,V}()` constructs a hash table using object-id as hash and | ||
| `===` as equality with keys of type `K` and values of type `V`. | ||
| See [`Dict`](@ref) for further help. | ||
| """ | ||
| mutable struct IdDict{K,V} <: AbstractDict{K,V} | ||
| ht::Vector{Any} | ||
| count::Int | ||
| ndel::Int | ||
| IdDict{K,V}() where {K, V} = new{K,V}(Vector{Any}(undef, 32), 0, 0) | ||
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| function IdDict{K,V}(itr) where {K, V} | ||
| d = IdDict{K,V}() | ||
| for (k,v) in itr; d[k] = v; end | ||
| d | ||
| end | ||
|
|
||
| function IdDict{K,V}(pairs::Pair...) where {K, V} | ||
| d = IdDict{K,V}() | ||
| sizehint!(d, length(pairs)) | ||
| for (k,v) in pairs; d[k] = v; end | ||
| d | ||
| end | ||
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| IdDict{K,V}(d::IdDict{K,V}) where {K, V} = new{K,V}(copy(d.ht), d.count, d.ndel) | ||
| end | ||
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| IdDict() = IdDict{Any,Any}() | ||
| IdDict(kv::Tuple{}) = IdDict() | ||
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| IdDict(ps::Pair{K,V}...) where {K,V} = IdDict{K,V}(ps) | ||
| IdDict(ps::Pair{K}...) where {K} = IdDict{K,Any}(ps) | ||
| IdDict(ps::(Pair{K,V} where K)...) where {V} = IdDict{Any,V}(ps) | ||
| IdDict(ps::Pair...) = IdDict{Any,Any}(ps) | ||
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||
| function IdDict(kv) | ||
| try | ||
| dict_with_eltype((K, V) -> IdDict{K, V}, kv, eltype(kv)) | ||
| catch | ||
| if !applicable(iterate, kv) || !all(x->isa(x,Union{Tuple,Pair}),kv) | ||
| throw(ArgumentError( | ||
| "IdDict(kv): kv needs to be an iterator of tuples or pairs")) | ||
| else | ||
| rethrow() | ||
| end | ||
| end | ||
| end | ||
|
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||
| empty(d::IdDict, ::Type{K}, ::Type{V}) where {K, V} = IdDict{K,V}() | ||
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| function rehash!(d::IdDict, newsz = length(d.ht)) | ||
| d.ht = ccall(:jl_idtable_rehash, Vector{Any}, (Any, Csize_t), d.ht, newsz) | ||
| d | ||
| end | ||
|
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||
| function sizehint!(d::IdDict, newsz) | ||
| newsz = _tablesz(newsz*2) # *2 for keys and values in same array | ||
| oldsz = length(d.ht) | ||
| # grow at least 25% | ||
| if newsz < (oldsz*5)>>2 | ||
| return d | ||
| end | ||
| rehash!(d, newsz) | ||
| end | ||
|
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||
| function setindex!(d::IdDict{K,V}, @nospecialize(val), @nospecialize(key)) where {K, V} | ||
| !isa(key, K) && throw(ArgumentError("$(limitrepr(key)) is not a valid key for type $K")) | ||
| if !(val isa V) # avoid a dynamic call | ||
| val = convert(V, val) | ||
| end | ||
| if d.ndel >= ((3*length(d.ht))>>2) | ||
| rehash!(d, max(length(d.ht)>>1, 32)) | ||
| d.ndel = 0 | ||
| end | ||
| inserted = RefValue{Cint}(0) | ||
| d.ht = ccall(:jl_eqtable_put, Array{Any,1}, (Any, Any, Any, Ptr{Cint}), d.ht, key, val, inserted) | ||
| d.count += inserted[] | ||
| return d | ||
| end | ||
|
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||
| function get(d::IdDict{K,V}, @nospecialize(key), @nospecialize(default)) where {K, V} | ||
| val = ccall(:jl_eqtable_get, Any, (Any, Any, Any), d.ht, key, default) | ||
| val === default ? default : val::V | ||
| end | ||
| function getindex(d::IdDict{K,V}, @nospecialize(key)) where {K, V} | ||
| val = get(d, key, secret_table_token) | ||
| val === secret_table_token && throw(KeyError(key)) | ||
| return val::V | ||
| end | ||
|
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||
| function pop!(d::IdDict{K,V}, @nospecialize(key), @nospecialize(default)) where {K, V} | ||
| found = RefValue{Cint}(0) | ||
| val = ccall(:jl_eqtable_pop, Any, (Any, Any, Any, Ptr{Cint}), d.ht, key, default, found) | ||
| if found[] === Cint(0) | ||
| return default | ||
| else | ||
| d.count -= 1 | ||
| d.ndel += 1 | ||
| return val::V | ||
| end | ||
| end | ||
|
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||
| function pop!(d::IdDict{K,V}, @nospecialize(key)) where {K, V} | ||
| val = pop!(d, key, secret_table_token) | ||
| val === secret_table_token && throw(KeyError(key)) | ||
| return val::V | ||
| end | ||
|
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| function delete!(d::IdDict{K}, @nospecialize(key)) where K | ||
| pop!(d, key, secret_table_token) | ||
| d | ||
| end | ||
|
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| function empty!(d::IdDict) | ||
| resize!(d.ht, 32) | ||
| ccall(:memset, Ptr{Cvoid}, (Ptr{Cvoid}, Cint, Csize_t), d.ht, 0, sizeof(d.ht)) | ||
| d.ndel = 0 | ||
| d.count = 0 | ||
| return d | ||
| end | ||
|
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| _oidd_nextind(a, i) = reinterpret(Int, ccall(:jl_eqtable_nextind, Csize_t, (Any, Csize_t), a, i)) | ||
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| function iterate(d::IdDict{K,V}, idx=0) where {K, V} | ||
| idx = _oidd_nextind(d.ht, idx) | ||
| idx == -1 && return nothing | ||
| return (Pair{K, V}(d.ht[idx + 1]::K, d.ht[idx + 2]::V), idx + 2) | ||
| end | ||
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| length(d::IdDict) = d.count | ||
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| copy(d::IdDict) = typeof(d)(d) | ||
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| get!(d::IdDict{K,V}, @nospecialize(key), @nospecialize(default)) where {K, V} = (d[key] = get(d, key, default))::V | ||
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| function get(default::Callable, d::IdDict{K,V}, @nospecialize(key)) where {K, V} | ||
| val = get(d, key, secret_table_token) | ||
| if val === secret_table_token | ||
| val = default() | ||
| end | ||
| return val | ||
| end | ||
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| function get!(default::Callable, d::IdDict{K,V}, @nospecialize(key)) where {K, V} | ||
| val = get(d, key, secret_table_token) | ||
| if val === secret_table_token | ||
| val = default() | ||
| setindex!(d, val, key) | ||
| end | ||
| return val | ||
| end | ||
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| in(@nospecialize(k), v::KeySet{<:Any,<:IdDict}) = get(v.dict, k, secret_table_token) !== secret_table_token | ||
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| # For some AbstractDict types, it is safe to implement filter! | ||
| # by deleting keys during iteration. | ||
| filter!(f, d::IdDict) = filter_in_one_pass!(f, d) |
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