[PATCH olang 1/5] parser: replace type enum to an struction string id representation

[Carlos Maniero <carlos@maniero.me>]

Ensuring the type is correct is a semantics/checker role. Instead of
trying to converting it to an enum on the parses step it just store the
identifier of the given type.

Signed-off-by: Carlos Maniero <carlos@maniero.me>
---
 src/ast.h                                      | 4 ++--
 src/parser.c                                   | 7 ++-----
 src/pretty_print_ast.c                         | 4 ++--
 tests/integration/tests/0001_main_exit.ol      | 2 +-
 tests/integration/tests/0020_if_statement.ol   | 2 +-
 tests/integration/tests/0023_else_statement.ol | 2 +-
 tests/integration/tests/0024_var_definition.ol | 2 +-
 tests/unit/parser_test.c                       | 2 +-
 8 files changed, 11 insertions(+), 14 deletions(-)

diff --git a/src/ast.h b/src/ast.h
index a45a271..72fcc3e 100644
--- a/src/ast.h
+++ b/src/ast.h
@@ -40,9 +40,9 @@ typedef enum
     AST_NODE_UNKNOWN
 } ast_node_kind_t;
 
-typedef enum
+typedef struct type
 {
-    TYPE_U32
+    string_view_t id;
 } type_t;
 
 typedef struct ast_block
diff --git a/src/parser.c b/src/parser.c
index d71500f..6076a64 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -317,12 +317,9 @@ parser_parse_type(parser_t *parser, type_t *type)
         return false;
     }
 
-    if (string_view_eq_to_cstr(token.value, "u32")) {
-        *type = TYPE_U32;
-        return true;
-    }
+    type->id = token.value;
 
-    return false;
+    return true;
 }
 
 static ast_node_t *
diff --git a/src/pretty_print_ast.c b/src/pretty_print_ast.c
index d6eef67..8a02095 100644
--- a/src/pretty_print_ast.c
+++ b/src/pretty_print_ast.c
@@ -126,9 +126,9 @@ ast_node_to_pretty_print_node(ast_node_t *ast, arena_t *arena)
 
             char name[256];
             sprintf(name,
-                    "Function_Definition <name:" SV_FMT "> <return:%d>",
+                    "Function_Definition <name:" SV_FMT "> <return:" SV_FMT ">",
                     SV_ARG(fn_def.identifier),
-                    fn_def.return_type);
+                    SV_ARG(fn_def.return_type.id));
             node->name = (char *)arena_alloc(arena, sizeof(char) * (strlen(name) + 1));
             strcpy(node->name, name);
 
diff --git a/tests/integration/tests/0001_main_exit.ol b/tests/integration/tests/0001_main_exit.ol
index f446eb9..9068434 100644
--- a/tests/integration/tests/0001_main_exit.ol
+++ b/tests/integration/tests/0001_main_exit.ol
@@ -24,7 +24,7 @@ fn main(): u32 {
 #
 # TEST test_ast WITH
 # Translation_Unit
-# `-Function_Definition <name:main> <return:0>
+# `-Function_Definition <name:main> <return:u32>
 #   `-Block
 #     `-Return_Statement
 #       `-Literal <kind:u32> <value:0>
diff --git a/tests/integration/tests/0020_if_statement.ol b/tests/integration/tests/0020_if_statement.ol
index d48122f..460a05e 100644
--- a/tests/integration/tests/0020_if_statement.ol
+++ b/tests/integration/tests/0020_if_statement.ol
@@ -29,7 +29,7 @@ fn main(): u32 {
 
 # TEST test_ast WITH
 # Translation_Unit
-# `-Function_Definition <name:main> <return:0>
+# `-Function_Definition <name:main> <return:u32>
 #   `-Block
 #     |-If_Statement
 #     | |-Binary_Operation (==)
diff --git a/tests/integration/tests/0023_else_statement.ol b/tests/integration/tests/0023_else_statement.ol
index fafb22e..f3ddc64 100644
--- a/tests/integration/tests/0023_else_statement.ol
+++ b/tests/integration/tests/0023_else_statement.ol
@@ -31,7 +31,7 @@ fn main(): u32 {
 
 # TEST test_ast WITH
 # Translation_Unit
-# `-Function_Definition <name:main> <return:0>
+# `-Function_Definition <name:main> <return:u32>
 #   `-Block
 #     `-If_Statement
 #       |-Binary_Operation (!=)
diff --git a/tests/integration/tests/0024_var_definition.ol b/tests/integration/tests/0024_var_definition.ol
index 5c23449..ebbcda4 100644
--- a/tests/integration/tests/0024_var_definition.ol
+++ b/tests/integration/tests/0024_var_definition.ol
@@ -28,7 +28,7 @@ fn main(): u32 {
 
 # TEST test_ast WITH
 # Translation_Unit
-# `-Function_Definition <name:main> <return:0>
+# `-Function_Definition <name:main> <return:u32>
 #   `-Block
 #     |-Var_Definition <name:code> <kind:u32>
 #     | `-Literal <kind:u32> <value:0>
diff --git a/tests/unit/parser_test.c b/tests/unit/parser_test.c
index 3cdac41..33657df 100644
--- a/tests/unit/parser_test.c
+++ b/tests/unit/parser_test.c
@@ -51,7 +51,7 @@ parse_program_test(const MunitParameter params[], void *user_data_or_fixture)
 
     ast_fn_definition_t fn = program.fn->as_fn_def;
     assert_memory_equal(fn.identifier.size, fn.identifier.chars, "main");
-    assert_uint(fn.return_type, ==, TYPE_U32);
+    assert_memory_equal(fn.return_type.id.size, fn.return_type.id.chars, "u32");
 
     ast_node_t *block = fn.block;
     assert_not_null(block);
-- 
2.34.1