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-rw-r--r--src/texec/eval.go92
1 files changed, 67 insertions, 25 deletions
diff --git a/src/texec/eval.go b/src/texec/eval.go
index ba936a6..9900194 100644
--- a/src/texec/eval.go
+++ b/src/texec/eval.go
@@ -17,37 +17,23 @@
package texec
import "strings"
+import "strconv"
+import "unicode"
import "tparse"
import "fmt"
// Check if a block is the main function
-func isMain(n tparse.Node) bool {
+func funcName(n tparse.Node) string {
if n.Data.Data == "block" {
if n.Sub[0].Data.Data == "bdef" {
for i := 0; i < len(n.Sub[0].Sub); i++ {
- if n.Sub[0].Sub[i].Data.Type == tparse.DEFWORD && n.Sub[0].Sub[i].Data.Data == "main" {
- return true
+ if n.Sub[0].Sub[i].Data.Type == tparse.DEFWORD {
+ return n.Sub[0].Sub[i].Data.Data
}
}
}
}
- return false
-}
-
-// Check if a block is control flow
-func isCF(n tparse.Node) bool {
- if n.Data.Data == "block" {
- if n.Sub[0].Data.Data == "bdef" {
- for i := 0; i < len(n.Sub[0].Sub); i++ {
- if n.Sub[0].Sub[i].Data.Type == tparse.KEYWORD {
- if n.Sub[0].Sub[i].Data.Data == "if" || n.Sub[0].Sub[i].Data.Data == "elif" || n.Sub[0].Sub[i].Data.Data == "else" || n.Sub[0].Sub[i].Data.Data == "match" || n.Sub[0].Sub[i].Data.Data == "case" || n.Sub[0].Sub[i].Data.Data == "loop" {
- return true
- }
- }
- }
- }
- }
- return false
+ return ""
}
// Default values for variables
@@ -58,21 +44,39 @@ func defaultVaule(t string) interface{} {
case "string":
return ""
}
+ return nil
}
// Match specific type (t) with general type (g)
func typeMatches(t, g string) bool {
switch t {
- case "int", "uint", "int8", "uint8", "char", "charp":
- return g == "number"
+ case "int", "uint", "int8", "uint8":
+ return g == "integer"
+ case "float":
+ return g == "float"
+ case "char", "charp":
+ return g == "char"
case "string":
return g == "string"
}
+ return false
}
// Get the control flow's name
func cfType(n tparse.Node) string {
+ if n.Data.Data == "block" {
+ if n.Sub[0].Data.Data == "bdef" {
+ for i := 0; i < len(n.Sub[0].Sub); i++ {
+ if n.Sub[0].Sub[i].Data.Type == tparse.KEYWORD {
+ if n.Sub[0].Sub[i].Data.Data == "if" || n.Sub[0].Sub[i].Data.Data == "elif" || n.Sub[0].Sub[i].Data.Data == "else" || n.Sub[0].Sub[i].Data.Data == "match" || n.Sub[0].Sub[i].Data.Data == "case" || n.Sub[0].Sub[i].Data.Data == "loop" {
+ return n.Sub[0].Sub[i].Data.Data
+ }
+ }
+ }
+ }
+ }
+ return ""
}
// Get type as string from nodes
@@ -81,8 +85,35 @@ func evalType(n tparse.Node) string {
}
// Returns generated value and general "type" of value (string, number)
+func evalPreLiteral(n tparse.Node) string {
+ r := tparse.StringAsRunes(n.Data.Data)
+ l := len(r)
+ if r[0] == '"' || r[0] == '\'' {
+ return tparse.RunesAsString(r[1:l - 1])
+ }
+ return ""
+}
+
+// Returns generated value and general "type" of value (string, number)
func evalLiteral(n tparse.Node) (interface{}, string) {
+ r := tparse.StringAsRunes(n.Data.Data)
+ l := len(r)
+
+ if r[0] == '"' {
+ return tparse.RunesAsString(r[1:l - 1]), "string"
+ } else if r[0] == '\'' {
+ return tparse.RunesAsString(r[1:l - 1]), "char"
+ } else if unicode.IsNumber(r[0]) {
+ if strings.Contains(n.Data.Data, ".") {
+ f, _ := strconv.ParseFloat(n.Data.Data, 64)
+ return f, "float"
+ } else {
+ i, _ := strconv.Atoi(n.Data.Data)
+ return i, "integer"
+ }
+ }
+ return nil, ""
}
// Evaluates a definition and sets up a TVariable in the context's var map
@@ -109,14 +140,25 @@ func evalDef(n tparse.Node, ctx *TContext) {
}
}
+func delScopeVars(sV []string, ctx *TContext) {
+ m := len(ctx.VarMap) - 1
+ for i := 0; i < len(sV); i++ {
+ delete(ctx.VarMap[m], sV[i])
+ }
+}
+
// Evaluates a value statement
func evalValue(artifact tparse.Node, ctx *TContext) interface{} {
vars := len(ctx.VarMap) - 1
}
-// Evaluates control flow
-func evalCF(artifact tparse.Node, ctx *TContext) {
+// Evaluates a loop
+func evalLoop(artifact tparse.Node, ctx *TContext) {
+
+}
+func evalIf(artifact tparse.Node, ctx *TContext) bool {
+ var scopeVars []string
}
// Evaluate a block (Assume that all blocks have only one output for now)
@@ -126,6 +168,6 @@ func evalBlock(artifact tparse.Node, ctx *TContext) interface{} {
// EvalTNSL starts the evaluation on the root TModule's main function with the given flags passed to the program
-func EvalTNSL(world *TModule, f string) {
+func EvalTNSL(root *TModule, f string) {
flags := strings.Split(f, " ")
} \ No newline at end of file