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Implicitly call references like functions

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This commit is contained in:
Étienne Fildadut 2022-09-10 17:58:34 +09:00
parent 95462391e3
commit 1263c32572
9 changed files with 505 additions and 73 deletions
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24
interpreter/expression.lua
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@ -183,10 +183,23 @@ local function eval(state, exp)
value = exp.names
}
elseif exp.type == "variable reference" then
return {
type = "variable reference",
value = exp.name
}
-- check if variable is already a reference
local v, e = eval(state, exp.expression)
if not v then return nil, e end
if v.type == "function reference" or v.type == "variable reference" then
return v
else
return { type = "variable reference", value = exp.name }
end
elseif exp.type == "implicit call if reference" then
local v, e = eval(state, exp.expression)
if not v then return nil, e end
if v.type == "function reference" or v.type == "variable reference" then
exp.variant.argument.expression.value = v
return eval(state, exp.variant)
else
return v
end
-- function
elseif exp.type == "function call" then
-- eval args: map_brackets
@ -529,6 +542,9 @@ local function eval(state, exp)
type = "event buffer",
value = l
}
-- pass the value along (internal type, used for variable reference implicit calls)
elseif exp.type == "value passthrough" then
return exp.value
else
return nil, ("unknown expression %q"):format(tostring(exp.type))
end