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Actually use started_with.

This commit is contained in:
Sergey Pepyakin 2019-04-05 13:41:25 +02:00
parent 5c183c4da0
commit 4e2347b4bf
1 changed files with 12 additions and 12 deletions
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24
src/validation/func.rs
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@ -40,7 +40,7 @@ struct BlockFrame {
/// An opcode that opened the particular frame.
///
/// We need that to ensure proper combinations with `End` instruction.
#[derive(Debug, Clone)]
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
enum StartedWith {
Block,
If,
@ -472,11 +472,11 @@ impl Validator {
}
fn validate_br(context: &mut FunctionValidationContext, depth: u32) -> Result<(), Error> {
let (frame_type, frame_block_type) = {
let (started_with, frame_block_type) = {
let frame = require_label(depth, &context.frame_stack)?;
(frame.frame_type, frame.block_type)
(frame.started_with, frame.block_type)
};
if !frame_type.is_loop() {
if started_with != StartedWith::Loop {
if let BlockType::Value(value_type) = frame_block_type {
tee_value(
&mut context.value_stack,
@ -495,11 +495,11 @@ impl Validator {
ValueType::I32.into(),
)?;
let (frame_type, frame_block_type) = {
let (started_with, frame_block_type) = {
let frame = require_label(depth, &context.frame_stack)?;
(frame.frame_type, frame.block_type)
(frame.started_with, frame.block_type)
};
if !frame_type.is_loop() {
if started_with != StartedWith::Loop {
if let BlockType::Value(value_type) = frame_block_type {
tee_value(
&mut context.value_stack,
@ -781,9 +781,9 @@ impl<'a> FunctionValidationContext<'a> {
)?;
}
End => {
let (frame_type, block_type) = {
let (started_with, frame_type, block_type) = {
let top = top_label(&self.frame_stack);
(top.frame_type, top.block_type)
(top.started_with, top.frame_type, top.block_type)
};
if let BlockFrameType::IfTrue { if_not, .. } = frame_type {
@ -801,7 +801,7 @@ impl<'a> FunctionValidationContext<'a> {
}
// Unless it's a loop, resolve the `end_label` position here.
if !frame_type.is_loop() {
if started_with != StartedWith::Loop {
let end_label = frame_type.end_label();
self.sink.resolve_label(end_label);
}
@ -1676,10 +1676,10 @@ fn require_target(
require_label(depth, frame_stack).expect("require_target called with a bogus depth");
// Find out how many values we need to keep (copy to the new stack location after the drop).
let keep: isa::Keep = match (frame.frame_type, frame.block_type) {
let keep: isa::Keep = match (frame.started_with, frame.block_type) {
// A loop doesn't take a value upon a branch. It can return value
// only via reaching it's closing `End` operator.
(BlockFrameType::Loop { .. }, _) => isa::Keep::None,
(StartedWith::Loop, _) => isa::Keep::None,
(_, BlockType::Value(_)) => isa::Keep::Single,
(_, BlockType::NoResult) => isa::Keep::None,