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https://github.com/sveltejs/svelte.git
synced 2024-11-30 17:00:40 +01:00
rename some things so they make more sense
This commit is contained in:
Rich-Harris
parent
db7fe861b2
commit
3d259f46ee
@ -3,55 +3,57 @@ import deindent from '../../../utils/deindent.js';
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import visit from '../visit.js';
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export default function visitEachBlock ( generator, block, state, node ) {
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const name = generator.getUniqueName( `each_block` );
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const renderer = generator.getUniqueName( `create_each_block` );
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const elseName = generator.getUniqueName( `${name}_else` );
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const renderElse = generator.getUniqueName( `${renderer}_else` );
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const each_block = generator.getUniqueName( `each_block` );
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const each_block_else = generator.getUniqueName( `${each_block}_else` );
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const create_each_block = generator.getUniqueName( `create_each_block` );
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const create_each_block_else = generator.getUniqueName( `${create_each_block}_else` );
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const i = block.getUniqueName( `i` );
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const params = block.params.join( ', ' );
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const listName = block.getUniqueName( `${name}_value` );
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const listName = block.getUniqueName( `${each_block}_value` );
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const isToplevel = !state.parentNode;
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const { dependencies, snippet } = generator.contextualise( block, node.expression );
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const anchor = block.getUniqueName( `${name}_anchor` );
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const anchor = block.getUniqueName( `${each_block}_anchor` );
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block.createAnchor( anchor, state.parentNode );
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const localVars = {};
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localVars.iteration = block.getUniqueName( `${name}_iteration` );
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localVars.iterations = block.getUniqueName( `${name}_iterations` );
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localVars._iterations = block.getUniqueName( `_${name}_iterations` );
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localVars.lookup = block.getUniqueName( `${name}_lookup` );
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localVars._lookup = block.getUniqueName( `_${name}_lookup` );
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const vars = {
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iteration: block.getUniqueName( `${each_block}_iteration` ),
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iterations: block.getUniqueName( `${each_block}_iterations` ),
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_iteration: block.getUniqueName( `_${each_block}_iteration` ),
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lookup: block.getUniqueName( `${each_block}_lookup` ),
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_lookup: block.getUniqueName( `_${each_block}_lookup` )
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};
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block.builders.create.addLine( `var ${listName} = ${snippet};` );
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block.builders.create.addLine( `var ${localVars.iterations} = [];` );
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if ( node.key ) block.builders.create.addLine( `var ${localVars.lookup} = Object.create( null );` );
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if ( node.else ) block.builders.create.addLine( `var ${elseName} = null;` );
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block.builders.create.addLine( `var ${vars.iterations} = [];` );
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if ( node.key ) block.builders.create.addLine( `var ${vars.lookup} = Object.create( null );` );
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if ( node.else ) block.builders.create.addLine( `var ${each_block_else} = null;` );
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const initialRender = new CodeBuilder();
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if ( node.key ) {
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localVars.fragment = block.getUniqueName( 'fragment' );
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localVars.value = block.getUniqueName( 'value' );
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localVars.key = block.getUniqueName( 'key' );
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vars.fragment = block.getUniqueName( 'fragment' );
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vars.value = block.getUniqueName( 'value' );
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vars.key = block.getUniqueName( 'key' );
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initialRender.addBlock( deindent`
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var ${localVars.key} = ${listName}[${i}].${node.key};
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${localVars.iterations}[${i}] = ${localVars.lookup}[ ${localVars.key} ] = ${renderer}( ${params}, ${listName}, ${listName}[${i}], ${i}, ${block.component}${node.key ? `, ${localVars.key}` : `` } );
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var ${vars.key} = ${listName}[${i}].${node.key};
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${vars.iterations}[${i}] = ${vars.lookup}[ ${vars.key} ] = ${create_each_block}( ${params}, ${listName}, ${listName}[${i}], ${i}, ${block.component}${node.key ? `, ${vars.key}` : `` } );
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` );
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} else {
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initialRender.addLine(
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`${localVars.iterations}[${i}] = ${renderer}( ${params}, ${listName}, ${listName}[${i}], ${i}, ${block.component} );`
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`${vars.iterations}[${i}] = ${create_each_block}( ${params}, ${listName}, ${listName}[${i}], ${i}, ${block.component} );`
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);
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}
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if ( !isToplevel ) {
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initialRender.addLine(
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`${localVars.iterations}[${i}].mount( ${anchor}.parentNode, ${anchor} );`
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`${vars.iterations}[${i}].mount( ${anchor}.parentNode, ${anchor} );`
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);
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}
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@ -64,22 +66,22 @@ export default function visitEachBlock ( generator, block, state, node ) {
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if ( node.else ) {
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block.builders.create.addBlock( deindent`
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if ( !${listName}.length ) {
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${elseName} = ${renderElse}( ${params}, ${block.component} );
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${!isToplevel ? `${elseName}.mount( ${anchor}.parentNode, ${anchor} );` : ''}
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${each_block_else} = ${create_each_block_else}( ${params}, ${block.component} );
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${!isToplevel ? `${each_block_else}.mount( ${anchor}.parentNode, ${anchor} );` : ''}
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}
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` );
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}
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if ( isToplevel ) {
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block.builders.mount.addBlock( deindent`
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for ( var ${i} = 0; ${i} < ${localVars.iterations}.length; ${i} += 1 ) {
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${localVars.iterations}[${i}].mount( ${anchor}.parentNode, ${anchor} );
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for ( var ${i} = 0; ${i} < ${vars.iterations}.length; ${i} += 1 ) {
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${vars.iterations}[${i}].mount( ${anchor}.parentNode, ${anchor} );
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}
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` );
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if ( node.else ) {
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block.builders.mount.addBlock( deindent`
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if ( ${elseName} ) {
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${elseName}.mount( ${anchor}.parentNode, ${anchor} );
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if ( ${each_block_else} ) {
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${each_block_else}.mount( ${anchor}.parentNode, ${anchor} );
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}
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` );
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}
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@ -88,78 +90,78 @@ export default function visitEachBlock ( generator, block, state, node ) {
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if ( node.key ) {
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block.builders.update.addBlock( deindent`
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var ${listName} = ${snippet};
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var ${localVars._iterations} = [];
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var ${localVars._lookup} = Object.create( null );
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var ${vars._iterations} = [];
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var ${vars._lookup} = Object.create( null );
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var ${localVars.fragment} = document.createDocumentFragment();
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var ${vars.fragment} = document.createDocumentFragment();
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// create new iterations as necessary
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for ( var ${i} = 0; ${i} < ${listName}.length; ${i} += 1 ) {
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var ${localVars.value} = ${listName}[${i}];
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var ${localVars.key} = ${localVars.value}.${node.key};
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var ${vars.value} = ${listName}[${i}];
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var ${vars.key} = ${vars.value}.${node.key};
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if ( ${localVars.lookup}[ ${localVars.key} ] ) {
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${localVars._iterations}[${i}] = ${localVars._lookup}[ ${localVars.key} ] = ${localVars.lookup}[ ${localVars.key} ];
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${localVars._lookup}[ ${localVars.key} ].update( changed, ${params}, ${listName}, ${listName}[${i}], ${i} );
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if ( ${vars.lookup}[ ${vars.key} ] ) {
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${vars._iterations}[${i}] = ${vars._lookup}[ ${vars.key} ] = ${vars.lookup}[ ${vars.key} ];
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${vars._lookup}[ ${vars.key} ].update( changed, ${params}, ${listName}, ${listName}[${i}], ${i} );
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} else {
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${localVars._iterations}[${i}] = ${localVars._lookup}[ ${localVars.key} ] = ${renderer}( ${params}, ${listName}, ${listName}[${i}], ${i}, ${block.component}${node.key ? `, ${localVars.key}` : `` } );
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${vars._iterations}[${i}] = ${vars._lookup}[ ${vars.key} ] = ${create_each_block}( ${params}, ${listName}, ${listName}[${i}], ${i}, ${block.component}${node.key ? `, ${vars.key}` : `` } );
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}
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${localVars._iterations}[${i}].mount( ${localVars.fragment}, null );
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${vars._iterations}[${i}].mount( ${vars.fragment}, null );
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}
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// remove old iterations
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for ( var ${i} = 0; ${i} < ${localVars.iterations}.length; ${i} += 1 ) {
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var ${localVars.iteration} = ${localVars.iterations}[${i}];
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if ( !${localVars._lookup}[ ${localVars.iteration}.key ] ) {
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${localVars.iteration}.destroy( true );
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for ( var ${i} = 0; ${i} < ${vars.iterations}.length; ${i} += 1 ) {
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var ${vars.iteration} = ${vars.iterations}[${i}];
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if ( !${vars._lookup}[ ${vars.iteration}.key ] ) {
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${vars.iteration}.destroy( true );
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}
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}
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${anchor}.parentNode.insertBefore( ${localVars.fragment}, ${anchor} );
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${anchor}.parentNode.insertBefore( ${vars.fragment}, ${anchor} );
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${localVars.iterations} = ${localVars._iterations};
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${localVars.lookup} = ${localVars._lookup};
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${vars.iterations} = ${vars._iterations};
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${vars.lookup} = ${vars._lookup};
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` );
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} else {
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block.builders.update.addBlock( deindent`
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var ${listName} = ${snippet};
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for ( var ${i} = 0; ${i} < ${listName}.length; ${i} += 1 ) {
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if ( !${localVars.iterations}[${i}] ) {
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${localVars.iterations}[${i}] = ${renderer}( ${params}, ${listName}, ${listName}[${i}], ${i}, ${block.component} );
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${localVars.iterations}[${i}].mount( ${anchor}.parentNode, ${anchor} );
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if ( !${vars.iterations}[${i}] ) {
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${vars.iterations}[${i}] = ${create_each_block}( ${params}, ${listName}, ${listName}[${i}], ${i}, ${block.component} );
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${vars.iterations}[${i}].mount( ${anchor}.parentNode, ${anchor} );
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} else {
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${localVars.iterations}[${i}].update( changed, ${params}, ${listName}, ${listName}[${i}], ${i} );
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${vars.iterations}[${i}].update( changed, ${params}, ${listName}, ${listName}[${i}], ${i} );
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}
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}
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${generator.helper( 'destroyEach' )}( ${localVars.iterations}, true, ${listName}.length );
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${generator.helper( 'destroyEach' )}( ${vars.iterations}, true, ${listName}.length );
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${localVars.iterations}.length = ${listName}.length;
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${vars.iterations}.length = ${listName}.length;
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` );
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}
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if ( node.else ) {
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block.builders.update.addBlock( deindent`
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if ( !${listName}.length && ${elseName} ) {
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${elseName}.update( changed, ${params} );
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if ( !${listName}.length && ${each_block_else} ) {
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${each_block_else}.update( changed, ${params} );
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} else if ( !${listName}.length ) {
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${elseName} = ${renderElse}( ${params}, ${block.component} );
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${elseName}.mount( ${anchor}.parentNode, ${anchor} );
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} else if ( ${elseName} ) {
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${elseName}.destroy( true );
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${each_block_else} = ${create_each_block_else}( ${params}, ${block.component} );
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${each_block_else}.mount( ${anchor}.parentNode, ${anchor} );
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} else if ( ${each_block_else} ) {
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${each_block_else}.destroy( true );
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}
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` );
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}
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block.builders.destroy.addBlock(
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`${generator.helper( 'destroyEach' )}( ${localVars.iterations}, ${isToplevel ? 'detach' : 'false'}, 0 );` );
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`${generator.helper( 'destroyEach' )}( ${vars.iterations}, ${isToplevel ? 'detach' : 'false'}, 0 );` );
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if ( node.else ) {
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block.builders.destroy.addBlock( deindent`
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if ( ${elseName} ) {
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${elseName}.destroy( ${isToplevel ? 'detach' : 'false'} );
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if ( ${each_block_else} ) {
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${each_block_else}.destroy( ${isToplevel ? 'detach' : 'false'} );
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}
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` );
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}
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@ -182,7 +184,7 @@ export default function visitEachBlock ( generator, block, state, node ) {
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contextDependencies.set( node.context, dependencies );
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const childBlock = block.child({
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name: renderer,
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name: create_each_block,
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expression: node.expression,
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context: node.context,
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key: node.key,
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@ -209,7 +211,7 @@ export default function visitEachBlock ( generator, block, state, node ) {
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if ( node.else ) {
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const childBlock = block.child({
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name: renderElse
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name: create_each_block_else
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});
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node.else.children.forEach( child => {
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