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Improve error messages related to shader_type

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The list of allowed shader types is now displayed if any
`shader_type`-related error is emitted.

This makes it easier to remember which shader types are allowed
when creating a new shader.
This commit is contained in:
Hugo Locurcio 2019-10-26 17:41:47 +02:00
parent aa0fa6b14f
commit 701581d1d3
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GPG key ID: 39E8F8BE30B0A49C
2 changed files with 20 additions and 11 deletions
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29
servers/visual/shader_language.cpp
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@ -4610,19 +4610,34 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui
return OK;
}
String ShaderLanguage::_get_shader_type_list(const Set<String> &p_shader_types) const {
// Return a list of shader types as an human-readable string
String valid_types;
for (const Set<String>::Element *E = p_shader_types.front(); E; E = E->next()) {
if (valid_types != String()) {
valid_types += ", ";
}
valid_types += "'" + E->get() + "'";
}
return valid_types;
}
Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_functions, const Vector<StringName> &p_render_modes, const Set<String> &p_shader_types) {
Token tk = _get_token();
if (tk.type != TK_SHADER_TYPE) {
_set_error("Expected 'shader_type' at the beginning of shader.");
_set_error("Expected 'shader_type' at the beginning of shader. Valid types are: " + _get_shader_type_list(p_shader_types));
return ERR_PARSE_ERROR;
}
tk = _get_token();
if (tk.type != TK_IDENTIFIER) {
_set_error("Expected identifier after 'shader_type', indicating type of shader.");
_set_error("Expected identifier after 'shader_type', indicating type of shader. Valid types are: " + _get_shader_type_list(p_shader_types));
return ERR_PARSE_ERROR;
}
@ -4631,15 +4646,7 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct
shader_type_identifier = tk.text;
if (!p_shader_types.has(shader_type_identifier)) {
String valid;
for (Set<String>::Element *E = p_shader_types.front(); E; E = E->next()) {
if (valid != String()) {
valid += ", ";
}
valid += "'" + E->get() + "'";
}
_set_error("Invalid shader type, valid types are: " + valid);
_set_error("Invalid shader type. Valid types are: " + _get_shader_type_list(p_shader_types));
return ERR_PARSE_ERROR;
}