/**
 * Shader Graph Compiler
 *
 * Compiles shader graphs to WGSL shader code
 */
import { ShaderGraph } from './ShaderGraph';
import type { ICompiledShader, ICompileOptions } from './ShaderGraphTypes';
/**
 * Compiles shader graphs to WGSL code
 */
export declare class ShaderGraphCompiler {
    private graph;
    private options;
    private variableCounter;
    private nodeVariables;
    private uniforms;
    private textures;
    private warnings;
    private errors;
    constructor(graph: ShaderGraph, options?: Partial<ICompileOptions>);
    /**
     * Compile the shader graph
     */
    compile(): ICompiledShader;
    /**
     * Reset compilation state
     */
    private reset;
    /**
     * Generate a unique variable name
     */
    private generateVariable;
    /**
     * Get or create variable for a node output
     */
    private getOutputVariable;
    /**
     * Get input expression for a node input
     */
    private getInputExpression;
    /**
     * Get WGSL code for default value
     */
    private getDefaultValueCode;
    /**
     * Get zero value for a type
     */
    private getZeroValue;
    /**
     * Get WGSL type name
     */
    private getWGSLType;
    /**
     * Generate fragment shader body
     */
    private generateFragmentBody;
    /**
     * Generate code for nodes with multiple outputs
     */
    private generateMultiOutputCode;
    /**
     * Generate vertex shader body
     */
    private generateVertexBody;
    /**
     * Generate complete vertex shader
     */
    private generateVertexShader;
    /**
     * Generate complete fragment shader
     */
    private generateFragmentShader;
    /**
     * Generate texture bindings
     */
    private generateTextureBindings;
    /**
     * Generate uniform bindings
     */
    private generateUniformBindings;
    /**
     * Generate helper functions
     */
    private generateHelperFunctions;
}
/**
 * Compile a shader graph
 */
export declare function compileShaderGraph(graph: ShaderGraph, options?: Partial<ICompileOptions>): ICompiledShader;
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