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(define-module (test cpp parse2)
:use-module (srfi srfi-64)
:use-module (srfi srfi-88)
:use-module ((c ast) :select (build-ast))
:use-module ((c preprocessor2)
:select (preprocess-string
make-default-environment)))
(define (run str)
(call-with-values (lambda () (preprocess-string str (make-default-environment)))
(lambda (_ tokens)
(build-ast tokens))))
(test-group "primitives"
(test-equal "Simple integer"
'((constexpr (constant 1)))
(run "1"))
(test-equal "Complex integer"
'((constexpr (constant 16)))
(run "0x10l"))
(test-equal "Simple character"
'((constexpr (constant #x41)))
(run "'A'"))
(test-equal "String literal"
'((constexpr (string-constant #vu8(#x48 #x65 #x6c #x6c #x6f 0))))
(run "\"Hello\"")))
(test-equal "_Generic"
'((constexpr
(generic X
((specifier-qualifier-list (type long) (type double))
. cbrtl)
(default . cbrt)
((specifier-qualifier-list (type float)) . cbrtf))))
(run "_Generic(X, long double: cbrtl, default: cbrt, float: cbrtf)"))
(test-group "postfix expression"
(test-equal "array index"
'((constexpr (idx arr i)))
(run "arr[i]"))
(test-equal "Funcall"
'((constexpr (f)))
(run "f()"))
(test-equal "Funcall with args"
'((constexpr (f a b c)))
(run "f(a,b,c)"))
(test-equal "Chained function calls"
'((constexpr ((f a) b)))
(run "f(a)(b)"))
(test-equal "dot-access"
'((constexpr (dot-access a b)))
(run "a.b"))
(test-equal "chained dotaccess"
'((constexpr (dot-access (dot-access a b) c)))
(run "a.b.c"))
(test-equal "ptr-access"
'((constexpr (ptr-access a b)))
(run "a->b")))
;; unary expressions
;; cast expresions
(test-equal "Chained casts"
'((constexpr
(as-type (specifier-qualifier-list (type short))
(as-type (specifier-qualifier-list (type int))
x))))
(run "(short) (int) x"))
(test-equal "Ternary"
'((constexpr (ternary (constant 1)
(constant 2)
(constant 3))))
(run "1 ? 2 : 3"))
(test-equal "Comma operator"
'((constexpr (begin (= x (constant 10))
(= y (constant 20)))))
(run "x = 10, y = 20"))
(test-group "Declarations"
(test-equal "Simple"
'((translation-unit
(define (named x ((type int)))
<undefined-value>)))
(run "int x;"))
(test-equal "Simple with value"
'((translation-unit
(define (named x ((type int)))
(constant 1))))
(run "int x = 1;"))
(test-equal "Multiple at same time"
'((translation-unit
(begin
(define (named x ((type long) (type int)))
(constant 1))
(define (named y (pointer-to ((type long) (type int))))
<undefined-value>))))
(run "long int x = 1, *y;"))
;; TODO static_assert-declaration
(test-group "structs"
(test-equal "declaration"
'((translation-unit
(struct-like-declaration ((type (struct (named s)))))))
(run "struct s;"))
(test-equal "definition"
'((translation-unit
(struct-like-declaration
((type (struct (named s)
(struct-declaration-list
(struct-declarator-list
(named x (specifier-qualifier-list (type int)))))))))))
(run "struct s { int x; };"))
(test-equal "Definition with multiple fields"
'((translation-unit
(struct-like-declaration
((type (struct (named p)
(struct-declaration-list
(struct-declarator-list
(named x (specifier-qualifier-list (type int))))
(struct-declarator-list
(named y (specifier-qualifier-list (type int)))))))))))
(run "struct p { int x; int y; };"))
(test-equal "Anonymous definition"
'((translation-unit
(struct-like-declaration
((type (struct
(struct-declaration-list
(struct-declarator-list
(named x (specifier-qualifier-list (type int)))))))))))
(run "struct { int x; };"))
(test-equal "struct with inner named struct"
'((translation-unit
(struct-like-declaration
((type (struct (named p)
(struct-declaration-list
(struct-declarator-list
(named a (specifier-qualifier-list (type int))))
(specifier-qualifier-list
(type (struct (named inner)
(struct-declaration-list
(struct-declarator-list
(named x (specifier-qualifier-list (type int)))))))))))))))
(run "struct p { int a; struct inner { int x; }; };"))
(test-equal "struct with inner anonymous struct"
'((translation-unit
(struct-like-declaration
((type (struct (named p)
(struct-declaration-list
(struct-declarator-list
(named a (specifier-qualifier-list (type int))))
(specifier-qualifier-list
(type (struct
(struct-declaration-list
(struct-declarator-list
(named x (specifier-qualifier-list (type int)))))))))))))))
(run "struct p { int a; struct { int x; }; };"))
(run "struct p { struct s; };")
)
(test-group "Unions"
(test-equal
'((translation-unit
(struct-like-declaration
((type (union (named X)))))))
(run "union X;"))
;; (run "union p { struct s; };")
(test-equal
'((translation-unit
(struct-like-declaration
((type (union (named int_or_char)
(struct-declaration-list
(struct-declarator-list
(named i (specifier-qualifier-list (type int))))
(struct-declarator-list
(named s (specifier-qualifier-list (type char)))))))))))
(run "union int_or_char { int i; char s; };")))
(test-group "Typedef"
(test-equal "Simple"
'((translation-unit
(define (named uint
((storage typedef)
(type unsigned)
(type int)))
<undefined-value>)))
(run "typedef unsigned int uint;"))
;; Interesting since the star "binds" to the right
(test-equal "with ptr"
'((translation-unit
(define (named int_ptr
(pointer-to
((storage typedef)
(type int))))
<undefined-value>)))
(run "typedef int *int_ptr;"))
(test-equal "Function pointer"
'((translation-unit
(define ((named func_ptr
(pointer-to
(procedure
(returning (pointer-to ((storage typedef)
(type void))))
(taking ((pointer-to ((type void)))))))))
<undefined-value>)))
(run "typedef void*(*func_ptr)(void*);")))
)
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