mirror of
https://github.com/notwa/mm
synced 2024-11-05 02:49:02 -08:00
54 lines
1.4 KiB
Lua
54 lines
1.4 KiB
Lua
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local path = string.gsub(..., "[^.]+$", "")
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local util = require(path.."util")
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local Base = require(path.."Base")
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local Token = require(path.."Token")
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local Statement = Base:extend()
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function Statement:init(...)
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local args = {...}
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if #args == 1 then
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local t = args[1]
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if util.parent(t) ~= Statement then
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error('Internal Error: 1-arg Statement:init expected a Statement', 3)
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end
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if type(t) == 'table' then
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for k, v in pairs(t) do
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self[k] = v
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end
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end
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elseif #args >= 3 then
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self.fn = args[1]
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self.line = args[2]
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self.type = args[3]
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for i, v in ipairs(args) do
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if i > 3 then
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self[i - 3] = v
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end
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end
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else
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error('Internal Error: Statement:init takes 1 or 3+ arguments', 3)
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end
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self:validate(1)
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return self
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end
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function Statement:validate(n)
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n = (n or 0) + 3 -- depth for error message
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if not self.fn then
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error('Internal Error: statements require a filename', n)
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end
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if not self.line then
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error('Internal Error: statements require a line number', n)
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end
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if not self.type then
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error('Internal Error: statement is missing a type', n)
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end
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for i, v in ipairs(self) do
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if util.parent(v) ~= Token then
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self[i] = Token(self.fn, self.line, v)
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end
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end
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end
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return Statement
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