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perform arg type checking and evaluation before function call

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This commit is contained in:
Aidan 2020-08-21 01:37:04 -07:00
parent 90284f2d06
commit ab340ceb0a
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GPG key ID: 327711E983899316
9 changed files with 223 additions and 354 deletions
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20
stdlib/arith.go
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@ -36,14 +36,6 @@ import (
* Example: (number "3.4")
*/
func NumCast(in *ast.Token, a ast.VarTable, f ast.FuncTable) *ast.Token {
in = in.Eval(f, a, false)
if in.Tag != ast.STRING {
log.Log(log.ERR,
"only a string can successfully be cast to a number",
"number_cast")
return nil
}
if !ast.StrIsNumber(in.Value()) {
log.Log(log.ERR,
"string failed number cast",
@ -64,9 +56,6 @@ func NumCast(in *ast.Token, a ast.VarTable, f ast.FuncTable) *ast.Token {
*/
func Add(in *ast.Token, a ast.VarTable, f ast.FuncTable) *ast.Token {
var res float64
in = in.Eval(f, a, false)
for i := in; i != nil; i = i.Next {
if i.Tag != ast.NUMBER {
log.Log(log.ERR, "Non-number given to ADD", "add")
@ -112,9 +101,6 @@ func Add(in *ast.Token, a ast.VarTable, f ast.FuncTable) *ast.Token {
func Sub(in *ast.Token, a ast.VarTable, f ast.FuncTable) *ast.Token {
var res float64
var sub float64
in = in.Eval(f, a, false)
for i := in; i != nil; i = i.Next {
if i.Tag != ast.NUMBER {
log.Log(log.ERR, "Non-number given to SUB", "sub")
@ -166,9 +152,6 @@ func Sub(in *ast.Token, a ast.VarTable, f ast.FuncTable) *ast.Token {
*/
func Mult(in *ast.Token, a ast.VarTable, f ast.FuncTable) *ast.Token {
res := 1.0
in = in.Eval(f, a, false)
for i := in; i != nil; i = i.Next {
if i.Tag != ast.NUMBER {
log.Log(log.ERR, "Non-number given to MULT", "mult")
@ -214,9 +197,6 @@ func Mult(in *ast.Token, a ast.VarTable, f ast.FuncTable) *ast.Token {
*/
func Div(in *ast.Token, a ast.VarTable, f ast.FuncTable) *ast.Token {
var res float64
in = in.Eval(f, a, false)
for i := in; i != nil; i = i.Next {
inner := 0.0