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-rw-r--r--servers/visual/shader_language.cpp41
-rw-r--r--servers/visual/shader_language.h1
2 files changed, 42 insertions, 0 deletions
diff --git a/servers/visual/shader_language.cpp b/servers/visual/shader_language.cpp
index 4e5e816c02..46f65bb758 100644
--- a/servers/visual/shader_language.cpp
+++ b/servers/visual/shader_language.cpp
@@ -4754,6 +4754,11 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct
return ERR_PARSE_ERROR;
}
+ if (has_builtin(p_functions, name)) {
+ _set_error("Redefinition of '" + String(name) + "'");
+ return ERR_PARSE_ERROR;
+ }
+
if (uniform) {
ShaderNode::Uniform uniform2;
@@ -5002,6 +5007,11 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct
return ERR_PARSE_ERROR;
}
+ if (has_builtin(p_functions, name)) {
+ _set_error("Redefinition of '" + String(name) + "'");
+ return ERR_PARSE_ERROR;
+ }
+
tk = _get_token();
if (tk.type != TK_PARENTHESIS_OPEN) {
if (type == TYPE_VOID) {
@@ -5060,6 +5070,11 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct
return ERR_PARSE_ERROR;
}
+ if (has_builtin(p_functions, name)) {
+ _set_error("Redefinition of '" + String(name) + "'");
+ return ERR_PARSE_ERROR;
+ }
+
tk = _get_token();
} else if (tk.type == TK_SEMICOLON) {
@@ -5161,6 +5176,12 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct
return ERR_PARSE_ERROR;
}
}
+
+ if (has_builtin(p_functions, pname)) {
+ _set_error("Redefinition of '" + String(pname) + "'");
+ return ERR_PARSE_ERROR;
+ }
+
FunctionNode::Argument arg;
arg.type = ptype;
arg.name = pname;
@@ -5227,6 +5248,26 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct
return OK;
}
+bool ShaderLanguage::has_builtin(const Map<StringName, ShaderLanguage::FunctionInfo> &p_functions, const StringName &p_name) {
+
+ if (p_functions.has("vertex")) {
+ if (p_functions["vertex"].built_ins.has(p_name)) {
+ return true;
+ }
+ }
+ if (p_functions.has("fragment")) {
+ if (p_functions["fragment"].built_ins.has(p_name)) {
+ return true;
+ }
+ }
+ if (p_functions.has("light")) {
+ if (p_functions["light"].built_ins.has(p_name)) {
+ return true;
+ }
+ }
+ return false;
+}
+
Error ShaderLanguage::_find_last_flow_op_in_op(ControlFlowNode *p_flow, FlowOperation p_op) {
bool found = false;
diff --git a/servers/visual/shader_language.h b/servers/visual/shader_language.h
index ceeaaf8872..e62881f5c6 100644
--- a/servers/visual/shader_language.h
+++ b/servers/visual/shader_language.h
@@ -645,6 +645,7 @@ public:
Map<StringName, BuiltInInfo> built_ins;
bool can_discard;
};
+ static bool has_builtin(const Map<StringName, ShaderLanguage::FunctionInfo> &p_functions, const StringName &p_name);
private:
struct KeyWord {