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Add getindex for ConduitNode #14

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Add getindex for ConduitNode #14

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31 changes: 31 additions & 0 deletions src/conduit.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,10 @@ struct ConduitNode
nptr = API.conduit_node_create()
return new(nptr)
end

function ConduitNode(ptr::Ptr{API.conduit_node})
return new(ptr)
end
end
Base.unsafe_convert(::Type{Ptr{API.conduit_node}}, node::ConduitNode) = node.ptr

Expand All @@ -23,11 +27,24 @@ function ConduitNode(f::Function)
end

Base.setindex!(node::ConduitNode, val, path::String) = node_set!(node, path, val)
Base.getindex(node::ConduitNode, path::String) = node_get(node, path)

function node_get(node::ConduitNode, path::String)
if !node_has_path(node, path)
throw(KeyError(path))
end
node_at_path = API.conduit_node_fetch(node, path)
dtype = API.conduit_node_dtype(node_at_path)
dtypename = Symbol(unsafe_string(API.conduit_datatype_name(dtype)))
return node_get(node_at_path, Val(dtypename))
end

for numtype in (:UInt8, :Int8, :UInt16, :Int16, :UInt32, :Int32, :UInt64, :Int64, :Float32, :Float64)
cnumtype = Symbol(lowercase("$(numtype)"))
node_set_path = Symbol("conduit_node_set_path_$(cnumtype)")
node_set_path_ptr = Symbol("conduit_node_set_path_$(cnumtype)_ptr")
node_as = Symbol("conduit_node_as_$(cnumtype)")
node_as_ptr = Symbol("conduit_node_as_$(cnumtype)_ptr")
@eval begin
function node_set!(node::ConduitNode, path::String, val::$numtype)
API.$node_set_path(node, path, val)
Expand All @@ -37,6 +54,12 @@ for numtype in (:UInt8, :Int8, :UInt16, :Int16, :UInt32, :Int32, :UInt64, :Int64
API.$node_set_path_ptr(node, path, pointer(val), length(val))
return node
end
function node_get(nodeptr::Ptr{API.conduit_node}, ::$(Val{cnumtype}))
return API.$node_as(nodeptr)
end
function node_get(nodeptr::Ptr{API.conduit_node}, ::$(Val{Array{cnumtype}}))
return API.$node_as_ptr(nodeptr)
end
end
end

Expand All @@ -50,6 +73,14 @@ function node_set!(node::ConduitNode, path::String, val::ConduitNode)
return node
end

function node_get(nodeptr::Ptr{API.conduit_node}, ::Val{:object})
return ConduitNode(nodeptr)
end

function node_get(nodeptr::Ptr{API.conduit_node}, ::Val{:char8_str})
return unsafe_string(API.conduit_node_as_char8_str(nodeptr))
end

function node_has_path(node::ConduitNode, path::String)
return Bool(API.conduit_node_has_path(node, path))
end
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