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|
---@class vm
local vm = require 'vm.vm'
local util = require 'utility'
local guide = require 'parser.guide'
local config = require 'config'
vm.UNARY_OP = {
'unm',
'bnot',
'len',
}
vm.BINARY_OP = {
'add',
'sub',
'mul',
'div',
'mod',
'pow',
'idiv',
'band',
'bor',
'bxor',
'shl',
'shr',
'concat',
}
vm.OTHER_OP = {
'call',
}
local unaryMap = {
['-'] = 'unm',
['~'] = 'bnot',
['#'] = 'len',
}
local binaryMap = {
['+'] = 'add',
['-'] = 'sub',
['*'] = 'mul',
['/'] = 'div',
['%'] = 'mod',
['^'] = 'pow',
['//'] = 'idiv',
['&'] = 'band',
['|'] = 'bor',
['~'] = 'bxor',
['<<'] = 'shl',
['>>'] = 'shr',
['..'] = 'concat',
}
local otherMap = {
['()'] = 'call',
}
vm.OP_UNARY_MAP = util.revertMap(unaryMap)
vm.OP_BINARY_MAP = util.revertMap(binaryMap)
vm.OP_OTHER_MAP = util.revertMap(otherMap)
---@param operators parser.object[]
---@param op string
---@param value? parser.object
---@param result? vm.node
---@return vm.node?
local function checkOperators(operators, op, value, result)
for _, operator in ipairs(operators) do
if operator.op[1] ~= op
or not operator.extends then
goto CONTINUE
end
if value and operator.exp then
local valueNode = vm.compileNode(value)
local expNode = vm.compileNode(operator.exp)
local uri = guide.getUri(operator)
if not vm.isSubType(uri, valueNode, expNode) then
goto CONTINUE
end
end
if not result then
result = vm.createNode()
end
result:merge(vm.compileNode(operator.extends))
::CONTINUE::
end
return result
end
---@param op string
---@param exp parser.object
---@param value? parser.object
---@return vm.node?
function vm.runOperator(op, exp, value)
local uri = guide.getUri(exp)
local node = vm.compileNode(exp)
local result
for c in node:eachObject() do
if c.type == 'string'
or c.type == 'doc.type.string' then
c = vm.declareGlobal('type', 'string')
end
if c.type == 'global' and c.cate == 'type' then
---@cast c vm.global
for _, set in ipairs(c:getSets(uri)) do
if set.operators and #set.operators > 0 then
result = checkOperators(set.operators, op, value, result)
end
end
end
end
return result
end
vm.unarySwich = util.switch()
: case 'not'
: call(function (source)
local result = vm.testCondition(source[1])
if result == nil then
vm.setNode(source, vm.declareGlobal('type', 'boolean'))
else
vm.setNode(source, {
type = 'boolean',
start = source.start,
finish = source.finish,
parent = source,
[1] = not result,
})
end
end)
: case '#'
: call(function (source)
local node = vm.runOperator('len', source[1])
vm.setNode(source, node or vm.declareGlobal('type', 'integer'))
end)
: case '-'
: call(function (source)
local v = vm.getNumber(source[1])
if v == nil then
local uri = guide.getUri(source)
local infer = vm.getInfer(source[1])
if infer:hasType(uri, 'integer') then
vm.setNode(source, vm.declareGlobal('type', 'integer'))
elseif infer:hasType(uri, 'number') then
vm.setNode(source, vm.declareGlobal('type', 'number'))
else
local node = vm.runOperator('unm', source[1])
vm.setNode(source, node or vm.declareGlobal('type', 'number'))
end
else
vm.setNode(source, {
type = 'number',
start = source.start,
finish = source.finish,
parent = source,
[1] = -v,
})
end
end)
: case '~'
: call(function (source)
local v = vm.getInteger(source[1])
if v == nil then
local node = vm.runOperator('bnot', source[1])
vm.setNode(source, node or vm.declareGlobal('type', 'integer'))
else
vm.setNode(source, {
type = 'integer',
start = source.start,
finish = source.finish,
parent = source,
[1] = ~v,
})
end
end)
vm.binarySwitch = util.switch()
: case 'and'
: call(function (source)
local node1 = vm.compileNode(source[1])
local node2 = vm.compileNode(source[2])
local r1 = vm.testCondition(source[1])
if r1 == true then
vm.setNode(source, node2)
elseif r1 == false then
vm.setNode(source, node1)
else
local node = node1:copy():setFalsy():merge(node2)
vm.setNode(source, node)
end
end)
: case 'or'
: call(function (source)
local node1 = vm.compileNode(source[1])
local node2 = vm.compileNode(source[2])
local r1 = vm.testCondition(source[1])
if r1 == true then
vm.setNode(source, node1)
elseif r1 == false then
vm.setNode(source, node2)
else
local node = node1:copy():setTruthy():merge(node2)
vm.setNode(source, node)
end
end)
: case '=='
: case '~='
: call(function (source)
local result = vm.equal(source[1], source[2])
if result == nil then
vm.setNode(source, vm.declareGlobal('type', 'boolean'))
else
if source.op.type == '~=' then
result = not result
end
vm.setNode(source, {
type = 'boolean',
start = source.start,
finish = source.finish,
parent = source,
[1] = result,
})
end
end)
: case '<<'
: case '>>'
: case '&'
: case '|'
: case '~'
: call(function (source)
local a = vm.getInteger(source[1])
local b = vm.getInteger(source[2])
local op = source.op.type
if a and b then
local result = op == '<<' and a << b
or op == '>>' and a >> b
or op == '&' and a & b
or op == '|' and a | b
or op == '~' and a ~ b
vm.setNode(source, {
type = 'integer',
start = source.start,
finish = source.finish,
parent = source,
[1] = result,
})
else
local node = vm.runOperator(binaryMap[op], source[1], source[2])
vm.setNode(source, node or vm.declareGlobal('type', 'integer'))
end
end)
: case '+'
: case '-'
: case '*'
: case '/'
: case '%'
: case '//'
: case '^'
: call(function (source)
local a = vm.getNumber(source[1])
local b = vm.getNumber(source[2])
local op = source.op.type
local zero = b == 0
and ( op == '%'
or op == '/'
or op == '//'
)
if a and b and not zero then
local result = op == '+' and a + b
or op == '-' and a - b
or op == '*' and a * b
or op == '/' and a / b
or op == '%' and a % b
or op == '//' and a // b
or op == '^' and a ^ b
vm.setNode(source, {
type = math.type(result) == 'integer' and 'integer' or 'number',
start = source.start,
finish = source.finish,
parent = source,
[1] = result,
})
else
local node = vm.runOperator(binaryMap[op], source[1], source[2])
if node then
vm.setNode(source, node)
return
end
if op == '+'
or op == '-'
or op == '*'
or op == '//'
or op == '%' then
local uri = guide.getUri(source)
local infer1 = vm.getInfer(source[1])
local infer2 = vm.getInfer(source[2])
if infer1:hasType(uri, 'integer')
or infer2:hasType(uri, 'integer') then
if not infer1:hasType(uri, 'number')
and not infer2:hasType(uri, 'number') then
vm.setNode(source, vm.declareGlobal('type', 'integer'))
return
end
end
end
vm.setNode(source, node or vm.declareGlobal('type', 'number'))
end
end)
: case '..'
: call(function (source)
local a = vm.getString(source[1])
or vm.getNumber(source[1])
local b = vm.getString(source[2])
or vm.getNumber(source[2])
if a and b then
if type(a) == 'number' or type(b) == 'number' then
local uri = guide.getUri(source)
local version = config.get(uri, 'Lua.runtime.version')
if math.tointeger(a) and math.type(a) == 'float' then
if version == 'Lua 5.3' or version == 'Lua 5.4' then
a = ('%.1f'):format(a)
else
a = ('%.0f'):format(a)
end
end
if math.tointeger(b) and math.type(b) == 'float' then
if version == 'Lua 5.3' or version == 'Lua 5.4' then
b = ('%.1f'):format(b)
else
b = ('%.0f'):format(b)
end
end
end
vm.setNode(source, {
type = 'string',
start = source.start,
finish = source.finish,
parent = source,
[1] = a .. b,
})
else
local node = vm.runOperator(binaryMap[source.op.type], source[1], source[2])
vm.setNode(source, node or vm.declareGlobal('type', 'string'))
end
end)
: case '>'
: case '<'
: case '>='
: case '<='
: call(function (source)
local a = vm.getNumber(source[1])
local b = vm.getNumber(source[2])
if a and b then
local op = source.op.type
local result = op == '>' and a > b
or op == '<' and a < b
or op == '>=' and a >= b
or op == '<=' and a <= b
vm.setNode(source, {
type = 'boolean',
start = source.start,
finish = source.finish,
parent = source,
[1] =result,
})
else
vm.setNode(source, vm.declareGlobal('type', 'boolean'))
end
end)
|
