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Decorator system simplification, removed paragraph decorators, added function decorators

This commit is contained in:
Étienne Fildadut 2021-04-23 17:13:39 +02:00
parent 6f564ea0e2
commit 0171d92352
16 changed files with 265 additions and 290 deletions

View file

@ -57,29 +57,25 @@ local run_block
local function run_line(state, line)
-- store line
state.interpreter.running_line = line
-- condition decorator
local skipped = false
if line.condition then
local v, e = eval(state, line.condition)
if not v then return v, ("%s; at %s"):format(e, line.source) end
skipped = not truthy(v)
-- if line intend to push an event, flush buffer it it's a different event
if line.push_event and state.interpreter.event_buffer and state.interpreter.event_type ~= line.push_event then
local v, e = run_line(state, { source = line.source, type = "flush_events" })
if e then return v, e end
if v then return v end
end
if not skipped then
-- tag decorator
if line.tag then
local v, e = eval(state, line.tag)
if not v then return v, ("%s; in tag decorator at %s"):format(e, line.source) end
tags:push(state, v)
end
-- if line intend to push an event, flush buffer it it's a different event
if line.push_event and state.interpreter.event_buffer and state.interpreter.event_type ~= line.push_event then
local v, e = run_line(state, { source = line.source, type = "flush_events" })
-- line types
if line.type == "condition" then
line.parent_block.last_condition_success = nil
local v, e = eval(state, line.expression)
if not v then return v, ("%s; at %s"):format(e, line.source) end
if truthy(v) then
line.parent_block.last_condition_success = true
v, e = run_block(state, line.child)
if e then return v, e end
if v then return v end
end
-- line types
if line.type == "condition" then
line.parent_block.last_condition_success = nil
elseif line.type == "else-condition" then
if not line.parent_block.last_condition_success then
local v, e = eval(state, line.expression)
if not v then return v, ("%s; at %s"):format(e, line.source) end
if truthy(v) then
@ -88,85 +84,68 @@ local function run_line(state, line)
if e then return v, e end
if v then return v end
end
elseif line.type == "else-condition" then
if not line.parent_block.last_condition_success then
local v, e = eval(state, line.expression)
if not v then return v, ("%s; at %s"):format(e, line.source) end
if truthy(v) then
line.parent_block.last_condition_success = true
v, e = run_block(state, line.child)
end
elseif line.type == "choice" then
local t, er = eval_text(state, line.text)
if not t then return t, er end
table.insert(state.interpreter.choice_available, {
tags = tags:current(state),
block = line.child
})
write_event(state, "choice", t)
elseif line.type == "tag" then
local v, e = eval(state, line.expression)
if not v then return v, ("%s; at %s"):format(e, line.source) end
tags:push(state, v)
v, e = run_block(state, line.child)
tags:pop(state)
if e then return v, e end
if v then return v end
elseif line.type == "return" then
local v, e = eval(state, line.expression)
if not v then return v, ("%s; at %s"):format(e, line.source) end
return v
elseif line.type == "text" then
local t, er = eval_text(state, line.text)
if not t then return t, ("%s; at %s"):format(er, line.source) end
write_event(state, "text", t)
elseif line.type == "flush_events" then
while state.interpreter.event_buffer do
local type, buffer = state.interpreter.event_type, state.interpreter.event_buffer
state.interpreter.event_type = nil
state.interpreter.event_buffer = nil
-- yield
coroutine.yield(type, buffer)
-- run choice
if type == "choice" then
local sel = state.interpreter.choice_selected
state.interpreter.choice_selected = nil
if not sel or sel < 1 or sel > #state.interpreter.choice_available then
return nil, "invalid choice"
else
local choice = state.interpreter.choice_available[sel]
state.interpreter.choice_available = {}
tags:push_lua_no_merge(state, choice.tags)
local v, e = run_block(state, choice.block)
tags:pop(state)
if e then return v, e end
if v then return v end
-- discard return value from choice block as the execution is delayed until an event flush
-- and we don't want to stop the execution of another function unexpectedly
end
end
elseif line.type == "choice" then
local t, er = eval_text(state, line.text)
if not t then return t, er end
table.insert(state.interpreter.choice_available, {
tags = tags:current(state),
block = line.child
})
write_event(state, "choice", t)
elseif line.type == "tag" then
local v, e = eval(state, line.expression)
if not v then return v, ("%s; at %s"):format(e, line.source) end
tags:push(state, v)
v, e = run_block(state, line.child)
tags:pop(state)
if e then return v, e end
if v then return v end
elseif line.type == "return" then
local v, e = eval(state, line.expression)
if not v then return v, ("%s; at %s"):format(e, line.source) end
return v
elseif line.type == "text" then
local t, er = eval_text(state, line.text)
if not t then return t, ("%s; at %s"):format(er, line.source) end
write_event(state, "text", t)
elseif line.type == "flush_events" then
while state.interpreter.event_buffer do
local type, buffer = state.interpreter.event_type, state.interpreter.event_buffer
state.interpreter.event_type = nil
state.interpreter.event_buffer = nil
-- yield
coroutine.yield(type, buffer)
-- run choice
if type == "choice" then
local sel = state.interpreter.choice_selected
state.interpreter.choice_selected = nil
if not sel or sel < 1 or sel > #state.interpreter.choice_available then
return nil, "invalid choice"
else
local choice = state.interpreter.choice_available[sel]
state.interpreter.choice_available = {}
tags:push_lua_no_merge(state, choice.tags)
local v, e = run_block(state, choice.block)
tags:pop(state)
if e then return v, e end
-- discard return value from choice block as the execution is delayed until an event flush
-- and we don't want to stop the execution of another function unexpectedly
end
end
end
elseif line.type ~= "checkpoint" then
return nil, ("unknown line type %q; at %s"):format(line.type, line.source)
end
-- tag decorator
if line.tag then
tags:pop(state)
end
-- checkpoint decorator and line
if line.checkpoint then
state.variables[line.namespace.."👁️"] = {
type = "number",
value = state.variables[line.namespace.."👁️"].value + 1
}
state.variables[line.parent_function.namespace.."🏁"] = {
type = "string",
value = line.name
}
merge_state(state)
end
elseif line.type == "checkpoint" then
state.variables[line.namespace.."👁️"] = {
type = "number",
value = state.variables[line.namespace.."👁️"].value + 1
}
state.variables[line.parent_function.namespace.."🏁"] = {
type = "string",
value = line.name
}
merge_state(state)
else
return nil, ("unknown line type %q; at %s"):format(line.type, line.source)
end
end
@ -196,9 +175,9 @@ run_block = function(state, block, resume_from_there, i, j)
i = i + 1
end
-- if we are exiting a checkpoint block, mark it as ran and update checkpoint
-- (when resuming from a checkpoint, execution is resumed from inside the checkpoint, the line.checkpoint check in run_line is never called)
-- (when resuming from a checkpoint, execution is resumed from inside the checkpoint, the line.type=="checkpoint" check in run_line is never called)
-- (and we want this to be done after executing the checkpoint block anyway)
if block.parent_line and block.parent_line.checkpoint then
if block.parent_line and block.parent_line.type == "checkpoint" then
local parent_line = block.parent_line
state.variables[parent_line.namespace.."👁️"] = {
type = "number",
@ -227,7 +206,7 @@ run_block = function(state, block, resume_from_there, i, j)
elseif parent_line.type == "condition" or parent_line.type == "else-condition" then
parent_line.parent_block.last_condition_success = true
end
if parent_line.type == "tag" or parent_line.tag then
if parent_line.type == "tag" then
tags:pop(state)
end
local v, e = run_block(state, parent_line.parent_block, resume_from_there, parent_line.parent_position+1)
@ -252,11 +231,6 @@ local function run(state, block, resume_from_there, i, j)
if not v then return v, ("%s; at %s"):format(e, parent_line.source) end
table.insert(tags_to_add, v)
end
if parent_line.tag then
local v, e = eval(state, parent_line.tag)
if not v then return v, ("%s; in tag decorator at %s"):format(e, parent_line.source) end
table.insert(tags_to_add, v)
end
parent_line = parent_line.parent_block.parent_line
end
-- re-add tag in desceding order