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Merge pull request #37313 from Chaosus/shader_fix_for

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Prevent shader crash if multiple variables has been declared in 'for'
This commit is contained in:
Yuri Roubinsky 2020-03-28 23:33:17 +03:00 committed by GitHub
parent fc5e1d0344 aa33db056a
commit fafb0ba06d
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 6 additions and 0 deletions
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5
servers/rendering/shader_language.cpp
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@ -5070,6 +5070,10 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui
p_block->variables[name] = var;
if (tk.type == TK_COMMA) {
if (p_block->block_type == BlockNode::BLOCK_TYPE_FOR) {
_set_error("Multiple declarations in 'for' loop are not implemented yet.");
return ERR_PARSE_ERROR;
}
tk = _get_token();
//another variable
} else if (tk.type == TK_SEMICOLON) {
@ -5394,6 +5398,7 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui
cf->flow_op = FLOW_OP_FOR;
BlockNode *init_block = alloc_node<BlockNode>();
init_block->block_type = BlockNode::BLOCK_TYPE_FOR;
init_block->parent_block = p_block;
init_block->single_statement = true;
cf->blocks.push_back(init_block);

1
servers/rendering/shader_language.h
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@ -487,6 +487,7 @@ public:
enum BlockType {
BLOCK_TYPE_STANDART,
BLOCK_TYPE_FOR,
BLOCK_TYPE_SWITCH,
BLOCK_TYPE_CASE,
BLOCK_TYPE_DEFAULT,