Function compileTableExpr

compile.go:1350–1419

}}}

(context *funcContext, reg int, ex *ast.TableExpr, ec *expcontext)

} // }}}

func compileTableExpr(context *funcContext, reg int, ex *ast.TableExpr, ec *expcontext) { // {{{
	code := context.Code
	/*
		tablereg := savereg(ec, reg)
		if tablereg == reg {
			reg += 1
		}
	*/
	tablereg := reg
	reg++
	code.AddABC(OP_NEWTABLE, tablereg, 0, 0, sline(ex))
	tablepc := code.LastPC()
	regbase := reg

	arraycount := 0
	lastvararg := false
	for i, field := range ex.Fields {
		islast := i == len(ex.Fields)-1
		if field.Key == nil {
			if islast && isVarArgReturnExpr(field.Value) {
				reg += compileExpr(context, reg, field.Value, ecnone(-2))
				lastvararg = true
			} else {
				reg += compileExpr(context, reg, field.Value, ecnone(0))
				arraycount += 1
			}
		} else {
			regorg := reg
			b := reg
			compileExprWithKMVPropagation(context, field.Key, &reg, &b)
			c := reg
			compileExprWithKMVPropagation(context, field.Value, &reg, &c)
			opcode := OP_SETTABLE
			if _, ok := field.Key.(*ast.StringExpr); ok {
				opcode = OP_SETTABLEKS
			}
			code.AddABC(opcode, tablereg, b, c, sline(ex))
			reg = regorg
		}
		flush := arraycount % FieldsPerFlush
		if (arraycount != 0 && (flush == 0 || islast)) || lastvararg {
			reg = regbase
			num := flush
			if num == 0 {
				num = FieldsPerFlush
			}
			c := (arraycount-1)/FieldsPerFlush + 1
			b := num
			if islast && isVarArgReturnExpr(field.Value) {
				b = 0
			}
			line := field.Value
			if field.Key != nil {
				line = field.Key
			}
			if c > 511 {
				c = 0
			}