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#include <stdlib.h>
#include <stdio.h>
#include "libgccjit.h"
#include "harness.h"
void
create_code (gcc_jit_context *ctxt, void *user_data)
{
/* Let's try to inject the equivalent of:
void
test_fn (void (*some_fn_ptr) (void *))
{
some_fn_ptr (42);
}
and verify that the API complains about the mismatching argument
type ("int" vs "void *"). */
gcc_jit_type *void_type =
gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_VOID);
gcc_jit_type *void_ptr_type =
gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_VOID_PTR);
gcc_jit_type *int_type =
gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
/* Build the function ptr type. */
gcc_jit_type *fn_ptr_type =
gcc_jit_context_new_function_ptr_type (ctxt, NULL,
void_type,
1, &void_ptr_type, 0);
/* Build the test_fn. */
gcc_jit_param *param_fn_ptr =
gcc_jit_context_new_param (ctxt, NULL, fn_ptr_type, "some_fn_ptr");
gcc_jit_function *test_fn =
gcc_jit_context_new_function (ctxt, NULL,
GCC_JIT_FUNCTION_EXPORTED,
void_type,
"test_fn",
1, ¶m_fn_ptr,
0);
/* some_fn_ptr (42); */
gcc_jit_rvalue *arg =
gcc_jit_context_new_rvalue_from_int (ctxt, int_type, 42);
gcc_jit_block *block = gcc_jit_function_new_block (test_fn, NULL);
gcc_jit_block_add_eval (
block, NULL,
gcc_jit_context_new_call_through_ptr (
ctxt,
NULL,
gcc_jit_param_as_rvalue (param_fn_ptr),
1, &arg));
/* the above has the wrong type for argument 1. */
gcc_jit_block_end_with_void_return (block, NULL);
}
void
verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
{
CHECK_VALUE (result, NULL);
/* Verify that the correct error message was emitted. */
CHECK_STRING_VALUE (gcc_jit_context_get_first_error (ctxt),
("gcc_jit_context_new_call_through_ptr:"
" mismatching types for argument 1 of fn_ptr:"
" some_fn_ptr:"
" assignment to param 1 (type: void *)"
" from (int)42 (type: int)"));
}
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