blob: 66862ffe15ebca3e37704356453626dee04ba248 (
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classdef Env < handle
properties
data
outer
end
methods
function env = Env(outer, binds, exprs)
env.data = containers.Map();
env.outer = outer;
if nargin > 1
env = Env(outer);
for i=1:length(binds)
k = binds.get(i).name;
if strcmp(k, '&')
env.data(binds.get(i+1).name) = exprs.slice(i);
break;
else
env.data(k) = exprs.get(i);
end
end
end
end
function ret = set(env, k, v)
env.data(k.name) = v;
ret = v;
end
function ret = find(env, k)
if env.data.isKey(k.name)
ret = env;
else
if ~islogical(env.outer)
ret = env.outer.find(k);
else
ret = false;
end
end
end
function ret = get(env, k)
fenv = env.find(k);
if ~islogical(fenv)
ret = fenv.data(k.name);
else
throw(MException('ENV:notfound', ...
sprintf('''%s'' not found', k.name)));
end
end
end
end
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