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125 lines
1.9 KiB
125 lines
1.9 KiB
import { TempNode } from './TempNode.js';
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const declarationRegexp = /^([a-z_0-9]+)\s([a-z_0-9]+)\s?\=?\s?(.*?)(\;|$)/i;
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class ConstNode extends TempNode {
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constructor( src, useDefine ) {
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super();
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this.parse( src || ConstNode.PI, useDefine );
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}
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getType( builder ) {
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return builder.getTypeByFormat( this.type );
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}
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parse( src, useDefine ) {
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this.src = src || '';
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let name, type, value = '';
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const match = this.src.match( declarationRegexp );
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this.useDefine = useDefine || this.src.charAt( 0 ) === '#';
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if ( match && match.length > 1 ) {
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type = match[ 1 ];
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name = match[ 2 ];
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value = match[ 3 ];
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} else {
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name = this.src;
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type = 'f';
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}
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this.name = name;
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this.type = type;
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this.value = value;
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}
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build( builder, output ) {
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if ( output === 'source' ) {
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if ( this.value ) {
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if ( this.useDefine ) {
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return '#define ' + this.name + ' ' + this.value;
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}
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return 'const ' + this.type + ' ' + this.name + ' = ' + this.value + ';';
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} else if ( this.useDefine ) {
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return this.src;
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}
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} else {
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builder.include( this );
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return builder.format( this.name, this.getType( builder ), output );
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}
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}
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generate( builder, output ) {
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return builder.format( this.name, this.getType( builder ), output );
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}
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copy( source ) {
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super.copy( source );
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this.parse( source.src, source.useDefine );
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return this;
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}
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toJSON( meta ) {
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let data = this.getJSONNode( meta );
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if ( ! data ) {
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data = this.createJSONNode( meta );
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data.src = this.src;
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if ( data.useDefine === true ) data.useDefine = true;
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}
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return data;
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}
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}
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ConstNode.prototype.nodeType = 'Const';
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ConstNode.PI = 'PI';
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ConstNode.PI2 = 'PI2';
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ConstNode.RECIPROCAL_PI = 'RECIPROCAL_PI';
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ConstNode.RECIPROCAL_PI2 = 'RECIPROCAL_PI2';
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ConstNode.LOG2 = 'LOG2';
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ConstNode.EPSILON = 'EPSILON';
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export { ConstNode };
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