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Add #error preprocessor directive to shading language

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This commit is contained in:
Chaosus 2024-10-17 17:28:09 +03:00
parent 4631a617e5
commit 155cf6a5b6
2 changed files with 31 additions and 12 deletions
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42
servers/rendering/shader_preprocessor.cpp
View file

@ -393,6 +393,8 @@ void ShaderPreprocessor::process_directive(Tokenizer *p_tokenizer) {
process_else(p_tokenizer);
} else if (directive == "endif") {
process_endif(p_tokenizer);
} else if (directive == "error") {
process_error(p_tokenizer);
} else if (directive == "define") {
process_define(p_tokenizer);
} else if (directive == "undef") {
@ -466,7 +468,7 @@ void ShaderPreprocessor::process_elif(Tokenizer *p_tokenizer) {
const int line = p_tokenizer->get_line();
if (state->current_branch == nullptr || state->current_branch->else_defined) {
set_error(RTR("Unmatched elif."), line);
set_error(vformat(RTR("Unmatched '%s' directive."), "elif"), line);
return;
}
if (state->previous_region != nullptr) {
@ -523,7 +525,7 @@ void ShaderPreprocessor::process_else(Tokenizer *p_tokenizer) {
const int line = p_tokenizer->get_line();
if (state->current_branch == nullptr || state->current_branch->else_defined) {
set_error(RTR("Unmatched else."), line);
set_error(vformat(RTR("Unmatched '%s' directive."), "else"), line);
return;
}
if (state->previous_region != nullptr) {
@ -531,7 +533,7 @@ void ShaderPreprocessor::process_else(Tokenizer *p_tokenizer) {
}
if (!p_tokenizer->consume_empty_line()) {
set_error(RTR("Invalid else."), p_tokenizer->get_line());
set_error(vformat(RTR("Invalid '%s' directive."), "else"), line);
}
bool skip = false;
@ -559,7 +561,7 @@ void ShaderPreprocessor::process_endif(Tokenizer *p_tokenizer) {
state->condition_depth--;
if (state->condition_depth < 0) {
set_error(RTR("Unmatched endif."), line);
set_error(vformat(RTR("Unmatched '%s' directive."), "endif"), line);
return;
}
if (state->previous_region != nullptr) {
@ -568,13 +570,28 @@ void ShaderPreprocessor::process_endif(Tokenizer *p_tokenizer) {
}
if (!p_tokenizer->consume_empty_line()) {
set_error(RTR("Invalid endif."), line);
set_error(vformat(RTR("Invalid '%s' directive."), "endif"), line);
}
state->current_branch = state->current_branch->parent;
state->branches.pop_back();
}
void ShaderPreprocessor::process_error(Tokenizer *p_tokenizer) {
const int line = p_tokenizer->get_line();
const String body = tokens_to_string(p_tokenizer->advance('\n')).strip_edges();
if (body.is_empty()) {
set_error(" ", line);
} else {
set_error(body, line);
}
if (!p_tokenizer->consume_empty_line()) {
set_error(vformat(RTR("Invalid '%s' directive."), "error"), line);
}
}
void ShaderPreprocessor::process_if(Tokenizer *p_tokenizer) {
const int line = p_tokenizer->get_line();
@ -626,7 +643,7 @@ void ShaderPreprocessor::process_ifdef(Tokenizer *p_tokenizer) {
}
if (!p_tokenizer->consume_empty_line()) {
set_error(RTR("Invalid ifdef."), line);
set_error(vformat(RTR("Invalid '%s' directive."), "ifdef"), line);
return;
}
@ -648,7 +665,7 @@ void ShaderPreprocessor::process_ifndef(Tokenizer *p_tokenizer) {
}
if (!p_tokenizer->consume_empty_line()) {
set_error(RTR("Invalid ifndef."), line);
set_error(vformat(RTR("Invalid '%s' directive."), "ifndef"), line);
return;
}
@ -771,21 +788,21 @@ void ShaderPreprocessor::process_pragma(Tokenizer *p_tokenizer) {
}
if (label.is_empty()) {
set_error(RTR("Invalid pragma directive."), line);
set_error(vformat(RTR("Invalid '%s' directive."), "pragma"), line);
return;
}
// Rxplicitly handle pragma values here.
// Explicitly handle pragma values here.
// If more pragma options are created, then refactor into a more defined structure.
if (label == "disable_preprocessor") {
state->disabled = true;
} else {
set_error(RTR("Invalid pragma directive."), line);
set_error(vformat(RTR("Invalid '%s' directive."), "pragma"), line);
return;
}
if (!p_tokenizer->consume_empty_line()) {
set_error(RTR("Invalid pragma directive."), line);
set_error(vformat(RTR("Invalid '%s' directive."), "pragma"), line);
return;
}
}
@ -794,7 +811,7 @@ void ShaderPreprocessor::process_undef(Tokenizer *p_tokenizer) {
const int line = p_tokenizer->get_line();
const String label = p_tokenizer->get_identifier();
if (label.is_empty() || !p_tokenizer->consume_empty_line()) {
set_error(RTR("Invalid undef."), line);
set_error(vformat(RTR("Invalid '%s' directive."), "undef"), line);
return;
}
@ -1383,6 +1400,7 @@ void ShaderPreprocessor::get_keyword_list(List<String> *r_keywords, bool p_inclu
r_keywords->push_back("else");
}
r_keywords->push_back("endif");
r_keywords->push_back("error");
if (p_include_shader_keywords) {
r_keywords->push_back("if");
}

1
servers/rendering/shader_preprocessor.h
View file

@ -191,6 +191,7 @@ private:
void process_elif(Tokenizer *p_tokenizer);
void process_else(Tokenizer *p_tokenizer);
void process_endif(Tokenizer *p_tokenizer);
void process_error(Tokenizer *p_tokenizer);
void process_if(Tokenizer *p_tokenizer);
void process_ifdef(Tokenizer *p_tokenizer);
void process_ifndef(Tokenizer *p_tokenizer);