checker: fix first() and last(); call_args; method cgen

vlib/v/ast/ast.v

@@ -147,13 +147,13 @@ pub:
 pub struct CallExpr {
 pub:
 // tok        token.Token
-	pos  token.Position
+	pos      token.Position
 mut:
 // func       Expr
-	name string
+	name     string
-	args []Expr
+	args     []Expr
-	is_c bool
+	is_c     bool
-	muts []bool
+	muts     []bool
 	or_block OrExpr
 }
 
@@ -166,6 +166,7 @@ pub:
 	args     []Expr
 	muts     []bool
 	or_block OrExpr
+	typ      table.Type
 }
 
 pub struct Return {
@@ -513,10 +514,10 @@ pub:
 
 pub struct Assoc {
 pub:
-	var_name   string
+	var_name string
-	fields []string
+	fields   []string
-	exprs  []Expr
+	exprs    []Expr
-	pos token.Position
+	pos      token.Position
 }
 
 pub struct SizeOf {

vlib/v/checker/checker.v

@@ -12,17 +12,17 @@ import (
 )
 
 const (
-	max_nr_errors = 50
+	max_nr_errors = 150
 )
 
 pub struct Checker {
-	table          &table.Table
+	table           &table.Table
 mut:
-	file           ast.File
+	file            ast.File
-	nr_errors      int
+	nr_errors       int
-	errors         []string
+	errors          []string
-	expected_type  table.Type
+	expected_type   table.Type
-	fn_return_type table.Type // current function's return type
+	fn_return_type  table.Type // current function's return type
 	// TODO: remove once all exprs/stmts are handled
 	unhandled_exprs []string
 	unhandled_stmts []string
@@ -45,6 +45,7 @@ pub fn (c mut Checker) check(ast_file ast.File) {
 		println(t.name + ' - ' + t.kind.str())
 	}
 	*/
+
 }
 
 pub fn (c mut Checker) check2(ast_file ast.File) []string {
@@ -71,7 +72,6 @@ pub fn (c mut Checker) check_files(ast_files []ast.File) {
 	for file in ast_files {
 		c.check(file)
 	}
-
 	c.print_unhandled_nodes()
 }
 
@@ -232,8 +232,11 @@ pub fn (c mut Checker) check_method_call_expr(method_call_expr ast.MethodCallExp
 		return method.return_type
 	}
 	if typ_sym.kind == .array && name in ['filter', 'clone'] {
-		// info := typ_sym.info as table.Array
+		return typ
-		return typ // info.elem_type
+	}
+	if typ_sym.kind == .array && name in ['first', 'last'] {
+		info := typ_sym.info as table.Array
+		return info.elem_type
 	}
 	// check parent
 	if typ_sym.parent_idx != 0 {
@@ -436,7 +439,9 @@ fn (c mut Checker) stmt(node ast.Stmt) {
 		}
 		else {
 			node_name := typeof(node)
-			if !(node_name) in c.unhandled_stmts { c.unhandled_stmts << node_name }
+			if !(node_name) in c.unhandled_stmts {
+				c.unhandled_stmts << node_name
+			}
 		}
 	}
 }
@@ -538,11 +543,11 @@ pub fn (c mut Checker) expr(node ast.Expr) table.Type {
 			c.expr(it.left)
 		}
 		*/
-		else {
+
-			// TODO: find nil string bug triggered with typeof
+		else {}
-			// node_name := typeof(node)
+		// TODO: find nil string bug triggered with typeof
-			// if !(node_name) in c.unhandled_exprs { c.unhandled_exprs << node_name }
+		// node_name := typeof(node)
-		}
+		// if !(node_name) in c.unhandled_exprs { c.unhandled_exprs << node_name }
 	}
 	return table.void_type
 }

vlib/v/gen/cgen.v

@@ -284,15 +284,28 @@ fn (g mut Gen) expr(node ast.Expr) {
 		}
 		ast.CallExpr {
 			g.write('${it.name}(')
+			g.call_args(it.args)
+			g.write(')')
+			/*
 			for i, expr in it.args {
 				g.expr(expr)
 				if i != it.args.len - 1 {
 					g.write(', ')
 				}
 			}
+			*/
+
+		}
+		ast.MethodCallExpr {
+			typ := 'TODO'
+			g.write('${typ}_${it.name}(')
+			g.expr(it.expr)
+			if it.args.len > 0 {
+				g.write(', ')
+			}
+			g.call_args(it.args)
 			g.write(')')
 		}
-		ast.MethodCallExpr {}
 		ast.Ident {
 			g.write('$it.name')
 		}
@@ -382,6 +395,15 @@ fn (g mut Gen) index_expr(node ast.IndexExpr) {
 	}
 }
 
+fn (g mut Gen) call_args(args []ast.Expr) {
+	for i, expr in args {
+		g.expr(expr)
+		if i != args.len - 1 {
+			g.write(', ')
+		}
+	}
+}
+
 fn verror(s string) {
 	println(s)
 	exit(1)

vlib/v/gen/tests/1.c

@@ -66,6 +66,7 @@ i < 10; i++;
 	bool q = true || false;
 	bool b2 = bools[0] || true;
 	bool b3 = get_bool() || true;
+	int f = TODO_first(nums);
 }
 
 int get_int(string a) {

vlib/v/gen/tests/1.vv

@@ -72,6 +72,7 @@ fn foo(a int) {
 	q := true || false
 	b2 := bools[0] || true
 	b3 := get_bool() || true
+	f := nums.first()
 	//cloned = nums.clone()
 	//cloned1 := cloned[0]
 	//println(cloned1 == 1)

vlib/v/gen/tests/4.c

@@ -17,7 +17,7 @@ int main() {
     a.a = tos3("da");
     a.b.a = 111;
     string a1 = a.a;
-    int a2 = ;
+    int a2 = TODO_testa(b);
     int c = testa();
     c = 1;
     string d = testb(1);
@@ -56,7 +56,7 @@ int testc(int a) {
 }
 
 int testa() {
-    int a = ;
+    int a = TODO_testb(f);
     a = 1;
     return 4;
 }