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more paranoia in shell/globals.mu

This commit is contained in:
Kartik K. Agaram 2021-05-06 19:38:54 -07:00
parent edae464db5
commit 7c8ad5a419
1 changed files with 48 additions and 0 deletions
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48
shell/global.mu
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@ -11,6 +11,12 @@ type global-table {
fn initialize-globals _self: (addr global-table) {
var self/esi: (addr global-table) <- copy _self
compare self, 0
{
break-if-!=
abort "initialize globals"
return
}
var data-ah/eax: (addr handle array global) <- get self, data
populate data-ah, 0x40
# for numbers
@ -85,6 +91,12 @@ fn load-globals in: (addr handle cell), self: (addr global-table) {
fn write-globals out: (addr stream byte), _self: (addr global-table) {
var self/esi: (addr global-table) <- copy _self
compare self, 0
{
break-if-!=
abort "write globals"
return
}
write out, " (globals . (\n"
var data-ah/eax: (addr handle array global) <- get self, data
var data/eax: (addr array global) <- lookup *data-ah
@ -127,6 +139,12 @@ fn write-globals out: (addr stream byte), _self: (addr global-table) {
fn render-globals screen: (addr screen), _self: (addr global-table) {
clear-rect screen, 0/xmin, 0/ymin, 0x55/xmax, 0x2f/ymax=screen-height-without-menu, 0xdc/bg=green-bg
var self/esi: (addr global-table) <- copy _self
compare self, 0
{
break-if-!=
abort "render globals"
return
}
# render primitives
render-primitives screen, 1/xmin=padding-left, 0x55/xmax, 0x2f/ymax
var data-ah/eax: (addr handle array global) <- get self, data
@ -269,6 +287,12 @@ fn primitive-global? _x: (addr global) -> _/eax: boolean {
fn append-primitive _self: (addr global-table), name: (addr array byte) {
var self/esi: (addr global-table) <- copy _self
compare self, 0
{
break-if-!=
abort "append primitive"
return
}
var final-index-addr/ecx: (addr int) <- get self, final-index
increment *final-index-addr
var curr-index/ecx: int <- copy *final-index-addr
@ -284,6 +308,12 @@ fn append-primitive _self: (addr global-table), name: (addr array byte) {
fn assign-or-create-global _self: (addr global-table), name: (addr array byte), value: (handle cell), trace: (addr trace) {
var self/esi: (addr global-table) <- copy _self
compare self, 0
{
break-if-!=
abort "assign global"
return
}
var curr-index/ecx: int <- find-symbol-name-in-globals self, name
{
compare curr-index, -1/not-found
@ -468,6 +498,12 @@ fn apply-primitive _f: (addr cell), args-ah: (addr handle cell), out: (addr hand
var f-index-a/ecx: (addr int) <- get f, index-data
var f-index/ecx: int <- copy *f-index-a
var globals/eax: (addr global-table) <- copy _globals
compare globals, 0
{
break-if-!=
abort "apply primitive"
return
}
var global-data-ah/eax: (addr handle array global) <- get globals, data
var global-data/eax: (addr array global) <- lookup *global-data-ah
var f-offset/ecx: (offset global) <- compute-offset global-data, f-index
@ -1919,6 +1955,12 @@ fn maybe-stash-gap-buffer-to-global _globals: (addr global-table), _definition-a
}
# stash 'gap' to it
var globals/eax: (addr global-table) <- copy _globals
compare globals, 0
{
break-if-!=
abort "stash to globals"
return
}
var global-data-ah/eax: (addr handle array global) <- get globals, data
var global-data/eax: (addr array global) <- lookup *global-data-ah
var offset/ebx: (offset global) <- compute-offset global-data, index
@ -1975,6 +2017,12 @@ fn move-gap-buffer-to-global _globals: (addr global-table), _definition-ah: (add
}
# move 'gap' to it
var globals/eax: (addr global-table) <- copy _globals
compare globals, 0
{
break-if-!=
abort "move to globals"
return
}
var global-data-ah/eax: (addr handle array global) <- get globals, data
var global-data/eax: (addr array global) <- lookup *global-data-ah
var offset/ebx: (offset global) <- compute-offset global-data, index