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131 lines
3.1 KiB
Lua
131 lines
3.1 KiB
Lua
local helpers = require('test.unit.helpers')(nil)
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local ffi = helpers.ffi
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local cimport = helpers.cimport
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local kvi_new = helpers.kvi_new
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local kvi_init = helpers.kvi_init
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local conv_enum = helpers.conv_enum
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local make_enum_conv_tab = helpers.make_enum_conv_tab
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local lib = cimport('./src/nvim/viml/parser/expressions.h')
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local function new_pstate(strings)
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local strings_idx = 0
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local function get_line(_, ret_pline)
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strings_idx = strings_idx + 1
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local str = strings[strings_idx]
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local data, size
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if type(str) == 'string' then
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data = str
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size = #str
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elseif type(str) == 'nil' then
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data = nil
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size = 0
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elseif type(str) == 'table' then
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data = str.data
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size = str.size
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elseif type(str) == 'function' then
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data, size = str()
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size = size or 0
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end
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ret_pline.data = data
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ret_pline.size = size
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ret_pline.allocated = false
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end
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local state = {
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reader = {
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get_line = get_line,
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cookie = nil,
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conv = {
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vc_type = 0,
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vc_factor = 1,
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vc_fail = false,
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},
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},
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pos = { line = 0, col = 0 },
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colors = kvi_new('ParserHighlight'),
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can_continuate = false,
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}
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local ret = ffi.new('ParserState', state)
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kvi_init(ret.reader.lines)
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kvi_init(ret.stack)
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return ret
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end
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local function pline2lua(pline)
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return ffi.string(pline.data, pline.size)
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end
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local function pstate_str(pstate, start, len)
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local str = nil
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local err = nil
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if start.line < pstate.reader.lines.size then
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local pstr = pline2lua(pstate.reader.lines.items[start.line])
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if start.col >= #pstr then
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err = 'start.col >= #pstr'
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else
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str = pstr:sub(tonumber(start.col) + 1, tonumber(start.col + len))
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end
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else
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err = 'start.line >= pstate.reader.lines.size'
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end
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return str, err
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end
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local function pstate_set_str(pstate, start, len, ret)
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ret = ret or {}
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ret.start = {
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line = tonumber(start.line),
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col = tonumber(start.col)
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}
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ret.len = tonumber(len)
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ret.str, ret.error = pstate_str(pstate, start, len)
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return ret
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end
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local eltkn_cmp_type_tab
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make_enum_conv_tab(lib, {
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'kExprCmpEqual',
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'kExprCmpMatches',
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'kExprCmpGreater',
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'kExprCmpGreaterOrEqual',
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'kExprCmpIdentical',
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}, 'kExprCmp', function(ret) eltkn_cmp_type_tab = ret end)
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local function conv_cmp_type(typ)
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return conv_enum(eltkn_cmp_type_tab, typ)
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end
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local ccs_tab
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make_enum_conv_tab(lib, {
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'kCCStrategyUseOption',
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'kCCStrategyMatchCase',
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'kCCStrategyIgnoreCase',
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}, 'kCCStrategy', function(ret) ccs_tab = ret end)
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local function conv_ccs(ccs)
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return conv_enum(ccs_tab, ccs)
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end
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local expr_asgn_type_tab
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make_enum_conv_tab(lib, {
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'kExprAsgnPlain',
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'kExprAsgnAdd',
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'kExprAsgnSubtract',
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'kExprAsgnConcat',
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}, 'kExprAsgn', function(ret) expr_asgn_type_tab = ret end)
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local function conv_expr_asgn_type(expr_asgn_type)
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return conv_enum(expr_asgn_type_tab, expr_asgn_type)
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end
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return {
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conv_ccs = conv_ccs,
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pline2lua = pline2lua,
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pstate_str = pstate_str,
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new_pstate = new_pstate,
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conv_cmp_type = conv_cmp_type,
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pstate_set_str = pstate_set_str,
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conv_expr_asgn_type = conv_expr_asgn_type,
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}
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