From 1a89b13b9c316010d3409f2fbec1e7de72646ac8 Mon Sep 17 00:00:00 2001
From: Kartik Agaram <vc@akkartik.com>
Date: Sun, 28 Jun 2020 11:50:50 -0700
Subject: 6585

---
 apps/mu      | Bin 332626 -> 333888 bytes
 apps/mu.subx | 107 +++++++++++++++++++++++++++++++++++++++++++++++++++++------
 2 files changed, 97 insertions(+), 10 deletions(-)

(limited to 'apps')

diff --git a/apps/mu b/apps/mu
index b24bb935..c2cf1bee 100755
Binary files a/apps/mu and b/apps/mu differ
diff --git a/apps/mu.subx b/apps/mu.subx
index ad7f6d47..3c55e561 100644
--- a/apps/mu.subx
+++ b/apps/mu.subx
@@ -4876,6 +4876,54 @@ test-get-with-wrong-base-type:
     5d/pop-to-ebp
     c3/return
 
+test-get-with-wrong-base-type-2:
+    # . prologue
+    55/push-ebp
+    89/<- %ebp 4/r32/esp
+    # setup
+    (clear-stream _test-input-stream)
+    (clear-stream $_test-input-buffered-file->buffer)
+    (clear-stream _test-output-stream)
+    (clear-stream $_test-output-buffered-file->buffer)
+    (clear-stream _test-error-stream)
+    (clear-stream $_test-error-buffered-file->buffer)
+    # var ed/edx: exit-descriptor = tailor-exit-descriptor(16)
+    68/push 0/imm32
+    68/push 0/imm32
+    89/<- %edx 4/r32/esp
+    (tailor-exit-descriptor %edx 0x10)
+    #
+    (write _test-input-stream "fn foo {\n")
+    (write _test-input-stream "  var a: (addr t)\n")
+    (write _test-input-stream "  var c/ecx: (addr int) <- get a, y\n")
+    (write _test-input-stream "}\n")
+    (write _test-input-stream "type t {\n")
+    (write _test-input-stream "  x: int\n")
+    (write _test-input-stream "}\n")
+    # convert
+    (convert-mu _test-input-buffered-file _test-output-buffered-file _test-error-buffered-file %edx)
+    # registers except esp clobbered at this point
+    # restore ed
+    89/<- %edx 4/r32/esp
+    (flush _test-output-buffered-file)
+    (flush _test-error-buffered-file)
+#?     # dump _test-error-stream {{{
+#?     (write 2 "^")
+#?     (write-stream 2 _test-error-stream)
+#?     (write 2 "$\n")
+#?     (rewind-stream _test-error-stream)
+#?     # }}}
+    # check output
+    (check-stream-equal _test-output-stream  ""  "F - test-get-with-wrong-base-type-2: output should be empty")
+    (check-next-stream-line-equal _test-error-stream  "fn foo: stmt get: var 'a' is an 'addr' type, and so must live in a register"  "F - test-get-with-wrong-base-type-2: error message")
+    # check that stop(1) was called
+    (check-ints-equal *(edx+4) 2 "F - test-get-with-wrong-base-type-2: exit status")
+    # don't restore from ebp
+    81 0/subop/add %esp 8/imm32
+    # . epilogue
+    5d/pop-to-ebp
+    c3/return
+
 test-get-with-wrong-offset-type:
     # . prologue
     55/push-ebp
@@ -10406,24 +10454,49 @@ check-mu-get-stmt:  # stmt: (addr stmt), fn: (addr function), err: (addr buffere
     # esi = stmt
     8b/-> *(ebp+8) 6/r32/esi
     # - check for 0 inouts
-    # var base/ebx: (addr stmt-var) = stmt->inouts->value
+    # var base/ecx: (addr var) = stmt->inouts->value
     (lookup *(esi+0xc) *(esi+0x10))  # Stmt1-inouts Stmt1-inouts => eax
-    89/<- %ebx 0/r32/eax
     3d/compare-eax-and 0/imm32/false
     0f 84/jump-if-= $check-mu-get-stmt:error-too-few-inouts/disp32
+    (lookup *eax *(eax+4))  # Stmt-var-value Stmt-var-value => eax
+    89/<- %ecx 0/r32/eax
     # - check base type
-    (container-type %ebx)  # => eax
-    (is-container? %eax)  # => eax
+    # if it's an 'addr', check that it's in a register
+    # var base-type/ebx: (addr tree type-id) = lookup(base->type)
+    (lookup *(ecx+8) *(ecx+0xc))  # Var-type Var-type => eax
+    89/<- %ebx 0/r32/eax
+    {
+      81 7/subop/compare *ebx 0/imm32/false  # Tree-is-atom
+      75/jump-if-!= break/disp8
+      # if (type->left != addr) break
+      (lookup *(ebx+4) *(ebx+8))  # Tree-left Tree-left => eax
+      (is-simple-mu-type? %eax 2)  # => eax
+      3d/compare-eax-and 0/imm32/false
+      74/jump-if-= break/disp8
+      # now check for register
+      81 7/subop/compare *(ecx+0x18) 0/imm32  # Var-register
+      0f 84/jump-if-= $check-mu-get-stmt:error-base-type-addr-but-not-register/disp32
+      # type->left is now an addr; skip it
+      (lookup *(ebx+0xc) *(ebx+0x10))  # Tree-right Tree-right => eax
+      89/<- %ebx 0/r32/eax
+    }
+    # ensure type is a container
+    # var base-type-id/ebx: type-id = base-type->value
+    8b/-> *(ebx+4) 3/r32/ebx  # Tree-value
+    (is-container? %ebx)  # => eax
     3d/compare-eax-and 0/imm32/false
     0f 84/jump-if-= $check-mu-get-stmt:error-bad-base/disp32
-    # var offset/ecx: (addr var) = stmt->inouts->next->value
+    # var offset/ecx: (addr stmt-var) = stmt->inouts->next
     (lookup *(esi+0xc) *(esi+0x10))  # Stmt1-inouts Stmt1-inouts => eax
     (lookup *(eax+8) *(eax+0xc))  # Stmt-var-next Stmt-var-next => eax
+    89/<- %ecx 0/r32/eax
     # - check for 1 inout
     3d/compare-eax-and 0/imm32/false
     0f 84/jump-if-= $check-mu-get-stmt:error-too-few-inouts/disp32
-    (lookup *eax *(eax+4))  # Stmt-var-value Stmt-var-value => eax
+    # var offset/ecx: (addr var) = lookup(offset->value)
+    (lookup *ecx *(ecx+4))  # Stmt-var-value Stmt-var-value => eax
     89/<- %ecx 0/r32/eax
+    # - check for valid field
     81 7/subop/compare *(ecx+0x14) -1/imm32/uninitialized  # Var-offset
     0f 84/jump-if-= $check-mu-get-stmt:error-bad-field/disp32
     # - check for too many inouts
@@ -10517,7 +10590,8 @@ $check-mu-get-stmt:error-bad-base:
     (lookup *eax *(eax+4))  # Function-name Function-name => eax
     (write-buffered *(ebp+0x10) %eax)
     (write-buffered *(ebp+0x10) ": stmt get: var '")
-    (lookup *ebx *(ebx+4))  # Stmt-var-value Stmt-var-value => eax
+    (lookup *(esi+0xc) *(esi+0x10))  # Stmt1-inouts Stmt1-inouts => eax
+    (lookup *eax *(eax+4))  # Stmt-var-value Stmt-var-value => eax
     (lookup *eax *(eax+4))  # Var-name Var-name => eax
     (write-buffered *(ebp+0x10) %eax)
     (write-buffered *(ebp+0x10) "' must have a 'type' definition\n")
@@ -10525,6 +10599,21 @@ $check-mu-get-stmt:error-bad-base:
     (stop *(ebp+0x14) 1)
     # never gets here
 
+$check-mu-get-stmt:error-base-type-addr-but-not-register:
+    (write-buffered *(ebp+0x10) "fn ")
+    8b/-> *(ebp+0xc) 0/r32/eax
+    (lookup *eax *(eax+4))  # Function-name Function-name => eax
+    (write-buffered *(ebp+0x10) %eax)
+    (write-buffered *(ebp+0x10) ": stmt get: var '")
+    (lookup *(esi+0xc) *(esi+0x10))  # Stmt1-inouts Stmt1-inouts => eax
+    (lookup *eax *(eax+4))  # Stmt-var-value Stmt-var-value => eax
+    (lookup *eax *(eax+4))  # Var-name Var-name => eax
+    (write-buffered *(ebp+0x10) %eax)
+    (write-buffered *(ebp+0x10) "' is an 'addr' type, and so must live in a register\n")
+    (flush *(ebp+0x10))
+    (stop *(ebp+0x14) 1)
+    # never gets here
+
 $check-mu-get-stmt:error-bad-field:
     # error("fn " fn ": stmt get: type " type " has no member called '" curr->name "'\n")
     (write-buffered *(ebp+0x10) "fn ")
@@ -10532,11 +10621,9 @@ $check-mu-get-stmt:error-bad-field:
     (lookup *eax *(eax+4))  # Function-name Function-name => eax
     (write-buffered *(ebp+0x10) %eax)
     (write-buffered *(ebp+0x10) ": stmt get: type '")
-    # . var tmp/eax = container-type(base)
-    (container-type %ebx)  # => eax
     # . write(Type-id->data[tmp])
     bf/copy-to-edi Type-id/imm32
-    (write-buffered *(ebp+0x10) *(edi+eax<<2+0xc))
+    (write-buffered *(ebp+0x10) *(edi+ebx<<2+0xc))
     # .
     (write-buffered *(ebp+0x10) "' has no member called '")
     (lookup *ecx *(ecx+4))  # Var-name Var-name => eax
-- 
cgit 1.4.1-2-gfad0