llgo/c/lua

c/lua/_demo/funccall-string/funccall.go

@@ -0,0 +1,48 @@
+package main
+
+import (
+	_ "unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/lua"
+)
+
+func main() {
+	L := lua.NewState()
+	defer L.Close()
+
+	L.OpenLibs()
+	code := c.Str(
+		`function processStrings(a, b, c)
+	print('Received string a: ' .. a)
+	print('Received string b: ', b)
+	print('Received string c (formatted): ' .. c)
+	return a .. b .. c
+end`)
+
+	if res := L.Dostring(code); res != lua.OK {
+		c.Printf(c.Str("error: %s\n"), L.ToString(-1))
+	}
+
+	L.GetGlobal(c.Str("processStrings"))
+
+	L.PushString(c.Str("Hello, World!"))
+	L.PushLString(c.Str(`Hello Lua In LLGO`), 17)
+	L.PushFString(c.Str(`Hello %s In %d`), c.Str("LLGO"), 2024)
+
+	if res := L.PCall(3, 1, 0); res != lua.OK {
+		c.Printf(c.Str("error: %s\n"), L.ToString(-1))
+	}
+
+	if res := L.IsString(-1); res != 0 {
+		result := L.ToString(-1)
+		c.Printf(c.Str("result: %s\n"), result)
+	}
+}
+
+/* Expected output:
+Received string a: Hello, World!
+Received string b:      Hello Lua In LLGO
+Received string c (formatted): Hello LLGO In 2024
+result: Hello, World!Hello Lua In LLGOHello LLGO In 2024
+*/