pseudo: execInputStmt

goplus · Feb 14, 2025 · 7214b2c · 7214b2c
1 parent 594a398
commit 7214b2c
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Showing 2 changed files with 12 additions and 2 deletions.
diff --git a/demo/gop-parser/pseudo/gauss.pseudo b/demo/gop-parser/pseudo/gauss.pseudo
@@ -1,6 +1,8 @@
-CONSTANT n <- 100
+DECLARE n : INTEGER
 DECLARE i : INTEGER
 DECLARE sum : INTEGER
+OUTPUT "please input n:"
+INPUT n
 i <- 1
 sum <- 0
 WHILE i <= n DO

diff --git a/demo/gop-parser/pseudo/state.gox b/demo/gop-parser/pseudo/state.gox
@@ -1,4 +1,5 @@
 import (
+	"fmt"
 	"gop/ast"
 	"gop/token"
 	"math"
@@ -78,7 +79,14 @@ func execOutputStmt(stmt *OutputStmt) {
 }
 
 func execInputStmt(stmt *InputStmt) {
-	panic("todo")
+	name := stmt.Name
+	oldv, ok := vars[name]
+	if !ok {
+		panic("undefined variable `${name}`")
+	}
+	v := reflect.new(reflect.typeOf(oldv))
+	fmt.scanln(v.Interface())!
+	vars[name] = v.elem.Interface()
 }
 
 func execIfStmt(stmt *IfStmt) {