Tighter floating-point type constraints in some cases
[sbcl.git] / src / compiler / target-main.lisp
index 3217c38..6614c67 100644 (file)
   (if (consp definition-designator)
       definition-designator
       (multiple-value-bind (definition env-p)
-                          (function-lambda-expression definition-designator)
-       (when env-p
-         (error "~S was defined in a non-null environment."
-                definition-designator))
-       (unless definition
-         (error "can't find a definition for ~S" definition-designator))
-       definition)))
+                           (function-lambda-expression definition-designator)
+        (when env-p
+          (error "~S was defined in a non-null environment."
+                 definition-designator))
+        (unless definition
+          (error "can't find a definition for ~S" definition-designator))
+        definition)))
 
 ;;; Handle the nontrivial case of CL:COMPILE.
-(defun actually-compile (name definition *lexenv*)
-  (with-compilation-values
-    (sb!xc:with-compilation-unit ()
-      ;; FIXME: These bindings were copied from SUB-COMPILE-FILE with
-      ;; few changes. Once things are stable, the shared bindings
-      ;; probably be merged back together into some shared utility
-      ;; macro, or perhaps both merged into one of the existing utility
-      ;; macros SB-C::WITH-COMPILATION-VALUES or
-      ;; CL:WITH-COMPILATION-UNIT.
-      (let* (;; FIXME: Do we need the *INFO-ENVIRONMENT* rebinding
-            ;; here? It's a literal translation of the old CMU CL
-            ;; rebinding to (OR *BACKEND-INFO-ENVIRONMENT*
-            ;; *INFO-ENVIRONMENT*), and it's not obvious whether the
-            ;; rebinding to itself is needed now that SBCL doesn't
-            ;; need *BACKEND-INFO-ENVIRONMENT*.
-            (*info-environment* *info-environment*)
-            (form (get-lambda-to-compile definition))
-            (*source-info* (make-lisp-source-info form))
-            (*toplevel-lambdas* ())
-            (*block-compile* nil)
-            (*compiler-error-bailout*
-             (lambda (&optional error)
-                (declare (ignore error))
-               (compiler-mumble
-                "~2&fatal error, aborting compilation~%")
-               (return-from actually-compile (values nil t nil))))
-            (*current-path* nil)
-            (*last-source-context* nil)
-            (*last-original-source* nil)
-            (*last-source-form* nil)
-            (*last-format-string* nil)
-            (*last-format-args* nil)
-            (*last-message-count* 0)
-            (*gensym-counter* 0)
-            ;; KLUDGE: This rebinding of policy is necessary so that
-            ;; forms such as LOCALLY at the REPL actually extend the
-            ;; compilation policy correctly.  However, there is an
-            ;; invariant that is potentially violated: future
-            ;; refactoring must not allow this to be done in the file
-            ;; compiler.  At the moment we're clearly alright, as we
-            ;; call %COMPILE with a core-object, not a fasl-stream,
-            ;; but caveat future maintainers. -- CSR, 2002-10-27
-            (*policy* (lexenv-policy *lexenv*))
-            ;; see above
-            (*handled-conditions* (lexenv-handled-conditions *lexenv*))
-            ;; ditto
-            (*disabled-package-locks* (lexenv-disabled-package-locks *lexenv*))
-            ;; FIXME: ANSI doesn't say anything about CL:COMPILE
-            ;; interacting with these variables, so we shouldn't. As
-            ;; of SBCL 0.6.7, COMPILE-FILE controls its verbosity by
-            ;; binding these variables, so as a quick hack we do so
-            ;; too. But a proper implementation would have verbosity
-            ;; controlled by function arguments and lexical variables.
-            (*compile-verbose* nil)
-            (*compile-print* nil))
-       (handler-bind (((satisfies handle-condition-p) #'handle-condition-handler))
-         (clear-stuff)
-         (find-source-paths form 0)
-         (%compile form (make-core-object)
-                   :name name
-                   :path '(original-source-start 0 0)))))))
+(defun actually-compile (name definition *lexenv* source-info tlf)
+  (let ((source-paths (when source-info *source-paths*)))
+    (with-compilation-values
+     (sb!xc:with-compilation-unit ()
+       ;; FIXME: These bindings were copied from SUB-COMPILE-FILE with
+       ;; few changes. Once things are stable, the shared bindings
+       ;; probably be merged back together into some shared utility
+       ;; macro, or perhaps both merged into one of the existing utility
+       ;; macros SB-C::WITH-COMPILATION-VALUES or
+       ;; CL:WITH-COMPILATION-UNIT.
+       (let* ((tlf (or tlf 0))
+              ;; If we have a source-info from LOAD, we will
+              ;; also have a source-paths already set up -- so drop
+              ;; the ones from WITH-COMPILATION-VALUES.
+              (*source-paths* (or source-paths *source-paths*))
+              ;; FIXME: Do we need the *INFO-ENVIRONMENT* rebinding
+              ;; here? It's a literal translation of the old CMU CL
+              ;; rebinding to (OR *BACKEND-INFO-ENVIRONMENT*
+              ;; *INFO-ENVIRONMENT*), and it's not obvious whether the
+              ;; rebinding to itself is needed now that SBCL doesn't
+              ;; need *BACKEND-INFO-ENVIRONMENT*.
+              (*info-environment* *info-environment*)
+              (form (get-lambda-to-compile definition))
+              (*source-info* (or source-info
+                                 (make-lisp-source-info
+                                  form :parent *source-info*)))
+              (*toplevel-lambdas* ())
+              (*block-compile* nil)
+              (*allow-instrumenting* nil)
+              (*code-coverage-records* nil)
+              (*code-coverage-blocks* nil)
+              (*compiler-error-bailout*
+               (lambda (&optional error)
+                 (declare (ignore error))
+                 (compiler-mumble
+                  "~2&fatal error, aborting compilation~%")
+                 (return-from actually-compile (values nil t nil))))
+              (*current-path* nil)
+              (*last-source-context* nil)
+              (*last-original-source* nil)
+              (*last-source-form* nil)
+              (*last-format-string* nil)
+              (*last-format-args* nil)
+              (*last-message-count* 0)
+              (*last-error-context* nil)
+              (*gensym-counter* 0)
+              ;; KLUDGE: This rebinding of policy is necessary so that
+              ;; forms such as LOCALLY at the REPL actually extend the
+              ;; compilation policy correctly.  However, there is an
+              ;; invariant that is potentially violated: future
+              ;; refactoring must not allow this to be done in the file
+              ;; compiler.  At the moment we're clearly alright, as we
+              ;; call %COMPILE with a core-object, not a fasl-stream,
+              ;; but caveat future maintainers. -- CSR, 2002-10-27
+              (*policy* (lexenv-policy *lexenv*))
+              ;; see above
+              (*handled-conditions* (lexenv-handled-conditions *lexenv*))
+              ;; ditto
+              (*disabled-package-locks* (lexenv-disabled-package-locks *lexenv*))
+              ;; FIXME: ANSI doesn't say anything about CL:COMPILE
+              ;; interacting with these variables, so we shouldn't. As
+              ;; of SBCL 0.6.7, COMPILE-FILE controls its verbosity by
+              ;; binding these variables, so as a quick hack we do so
+              ;; too. But a proper implementation would have verbosity
+              ;; controlled by function arguments and lexical variables.
+              (*compile-verbose* nil)
+              (*compile-print* nil))
+         (handler-bind (((satisfies handle-condition-p) #'handle-condition-handler))
+           (clear-stuff)
+           (unless source-paths
+             (find-source-paths form tlf))
+           (%compile form (make-core-object)
+                     :name name
+                     :path `(original-source-start 0 ,tlf))))))))
 
-(defun compile-in-lexenv (name definition lexenv)
+(defun compile-in-lexenv (name definition lexenv
+                          &optional source-info tlf)
   (multiple-value-bind (compiled-definition warnings-p failure-p)
-      (if (compiled-function-p definition)
-         (values definition nil nil)
-         (actually-compile name definition lexenv))
+      (cond
+        #!+sb-eval
+        ((sb!eval:interpreted-function-p definition)
+         (multiple-value-bind (definition lexenv)
+             (sb!eval:prepare-for-compile definition)
+           (actually-compile name definition lexenv source-info tlf)))
+        ((compiled-function-p definition)
+         (values definition nil nil))
+        (t
+         (actually-compile name definition lexenv source-info tlf)))
     (cond (name
-          (if (and (symbolp name)
+           (if (and (symbolp name)
                     (macro-function name))
-              (setf (macro-function name) compiled-definition)
-              (setf (fdefinition name) compiled-definition))
-          (values name warnings-p failure-p))
-         (t
-          (values compiled-definition warnings-p failure-p)))))
+               (setf (macro-function name) compiled-definition)
+               (setf (fdefinition name) compiled-definition))
+           (values name warnings-p failure-p))
+          (t
+           (values compiled-definition warnings-p failure-p)))))
 
 (defun compile (name &optional (definition (or (macro-function name)
-                                              (fdefinition name))))
+                                               (fdefinition name))))
   #!+sb-doc
   "Coerce DEFINITION (by default, the function whose name is NAME)
   to a compiled function, returning (VALUES THING WARNINGS-P FAILURE-P),
   otherwise THING is NAME. When NAME is not NIL, the compiled function
   is also set into (MACRO-FUNCTION NAME) if NAME names a macro, or into
   (FDEFINITION NAME) otherwise."
-  (compile-in-lexenv name definition (make-null-lexenv)))
+  (multiple-value-bind (function warnings-p failure-p)
+      (compile-in-lexenv name definition (make-null-lexenv))
+    (values (or function
+                name
+                (lambda (&rest arguments)
+                  (error 'simple-program-error
+                         :format-control
+                         "Called function compiled with errors. Original ~
+                          definition:~%  ~S~@[~%Arguments:~% ~{ ~S~}~]"
+                         :format-arguments (list definition arguments))))
+            warnings-p
+            failure-p)))