From 91269961d03944a45eb65d42fd9e5b0583ef7e4d Mon Sep 17 00:00:00 2001
From: Alexander Medvednikov <alexander@medvednikov.com>
Date: Fri, 6 Mar 2020 13:43:22 +0100
Subject: [PATCH] cgen: array types

---
 vlib/v/ast/ast.v  | 22 +++++++++++-----------
 vlib/v/gen/cgen.v | 16 ++++++++++++++++
 2 files changed, 27 insertions(+), 11 deletions(-)

diff --git a/vlib/v/ast/ast.v b/vlib/v/ast/ast.v
index 3ef0e4354f..8ed066ab97 100644
--- a/vlib/v/ast/ast.v
+++ b/vlib/v/ast/ast.v
@@ -8,15 +8,15 @@ import (
 	v.table
 )
 
-pub type Expr = InfixExpr | IfExpr | StringLiteral | IntegerLiteral | CharLiteral |
-FloatLiteral | Ident | CallExpr | BoolLiteral | StructInit | ArrayInit | SelectorExpr | PostfixExpr |
-AssignExpr | PrefixExpr | MethodCallExpr | IndexExpr | RangeExpr | MatchExpr |
-CastExpr | EnumVal | Assoc | SizeOf | None | MapInit | IfGuardExpr | ParExpr | OrExpr |
+pub type Expr = InfixExpr | IfExpr | StringLiteral | IntegerLiteral | CharLiteral | 	
+FloatLiteral | Ident | CallExpr | BoolLiteral | StructInit | ArrayInit | SelectorExpr | PostfixExpr | 	
+AssignExpr | PrefixExpr | MethodCallExpr | IndexExpr | RangeExpr | MatchExpr | 	
+CastExpr | EnumVal | Assoc | SizeOf | None | MapInit | IfGuardExpr | ParExpr | OrExpr | 	
 ConcatExpr | Type | AsCast
 
-pub type Stmt = VarDecl | GlobalDecl | FnDecl | Return | Module | Import | ExprStmt |
-ForStmt | StructDecl | ForCStmt | ForInStmt | CompIf | ConstDecl | Attr | BranchStmt |
-HashStmt | AssignStmt | EnumDecl | TypeDecl | DeferStmt | GotoLabel | GotoStmt |
+pub type Stmt = VarDecl | GlobalDecl | FnDecl | Return | Module | Import | ExprStmt | 	
+ForStmt | StructDecl | ForCStmt | ForInStmt | CompIf | ConstDecl | Attr | BranchStmt | 	
+HashStmt | AssignStmt | EnumDecl | TypeDecl | DeferStmt | GotoLabel | GotoStmt | 	
 LineComment | MultiLineComment | AssertStmt | UnsafeStmt
 // pub type Type = StructType | ArrayType
 // pub struct StructType {
@@ -176,8 +176,8 @@ mut:
 
 pub struct Return {
 pub:
-	pos           token.Position
-	exprs         []Expr
+	pos   token.Position
+	exprs []Expr
 }
 
 /*
@@ -376,8 +376,8 @@ pub struct ForCStmt {
 pub:
 	init  Stmt // i := 0;
 	cond  Expr // i < 10;
-	//inc   Stmt // i++;
-	inc   Expr// i++;
+	// inc   Stmt // i++;
+	inc   Expr // i++;
 	stmts []Stmt
 }
 
diff --git a/vlib/v/gen/cgen.v b/vlib/v/gen/cgen.v
index 62c8d4ec0b..67aed482ac 100644
--- a/vlib/v/gen/cgen.v
+++ b/vlib/v/gen/cgen.v
@@ -39,11 +39,27 @@ pub fn (g mut Gen) init() {
 	g.definitions.writeln('#include <inttypes.h>') // int64_t etc
 	g.definitions.writeln(c_builtin_types)
 	g.definitions.writeln(c_headers)
+	g.write_array_types()
 	g.write_sorted_types()
 	g.write_multi_return_types()
 	g.definitions.writeln('// end of definitions #endif')
 }
 
+// V type to C type
+pub fn (g &Gen) typ(t string) string {
+	return t.replace_each(['.', '__'])
+}
+
+pub fn (g mut Gen) write_array_types() {
+	for typ in g.table.types {
+		if typ.kind != .array {
+			continue
+		}
+		styp := typ.name.replace('.', '__')
+		g.definitions.writeln('typedef array $styp;')
+	}
+}
+
 pub fn (g mut Gen) write_multi_return_types() {
 	g.definitions.writeln('// multi return structs')
 	for typ in g.table.types {