FRigVMCodeEnvironment

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Custom Inja template environment providing C++ code generation helpers.

Extends inja::Environment to register custom callback functions that can be invoked from within Inja templates. These functions handle UE-specific types, indentation management, and C++ code generation patterns.Template Function ReferenceString Utilities

• `sanitize(name)_ - Converts a name to a valid C++ identifier
• `starts_with(str, prefix)_ - Returns true if str starts with prefix
• `ends_with(str, suffix)_ - Returns true if str ends with suffix
• `remove_whitespace(str)_ - Removes all spaces and tabs from str

• `format_number(format, value)_ - Printf-style number formatting (e.g., "%04d") Indentation Management

• `tabs()_ - Returns current indentation as tab characters
• `inc_tabs()_ - Increases indentation level by 1 (void, no return)

• `dec_tabs()_ - Decreases indentation level by 1 (void, no return) JSON Utilities

• `has_key(object, key)_ - Returns true if object contains key with truthy value

• `count_key(array, key)_ - Counts array elements that contain key with truthy value C++ Code Generation

• `cpp_get_default_for_native_type(type)_ - Returns default value for a C++ type (e.g., "FVector" -> "FVector::ZeroVector", "bool" -> "true")
• `cpp_get_initialize_code_for_property(memType, name, origName, nativeType, nativePath, default)_ Returns array of C++ initialization statements for a property
• `cpp_get_block_to_run_operand(instruction)_ - Resolves the BlockToRun operand for control flow instructions
• `cpp_is_default_value(nativeType, defaultValue)_ - Returns true if the value matches the header inline default, allowing constructor init to be skipped Example Template Usage

{{tabs()}}{{sanitize(Property.Name)}}={{cpp_get_default_for_native_type(Property.NativeType)}};{%inc_tabs()%}##forPropinProperties{{tabs()}}//Initialize{{Prop.Name}}##endfor{%dec_tabs()%}

Syntax

class FRigVMCodeEnvironment : public inja::Environment  
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class FRigVMCodeEnvironment : public inja::Environment

Inheritance Hierarchy

• inja::Environment → FRigVMCodeEnvironment

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